Data Collection Method and Apparatus
An illustrative embodiment of a data collection method and apparatus comprises at least one sensor that may be configured as a mobile data collection apparatus, which sensor may be in communication with a controller. The data collection apparatus may include one or more sensors, including but not limited to air pressure, air humidity, air temperature, road surface temperature, lightning distance, light level, precipitation rate, ozone level, carbon dioxide level, nitrous oxide level, and methane level; all of which may be in communication with a controller. One or more sensors may be positioned on or within a main assembly.
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This application claims the filing benefit of and is a continuation in part of U.S. patent application Ser. No. 13/972,513 filed on Aug. 21, 2013, which application claimed the filing benefit of provisional U.S. Pat. App. No. 61/691,757 filed on Aug. 21, 2012 and 61/736,511 filed on Dec. 12, 2012, and this application also claims the filing benefit of provisional U.S. Pat. App. No. 61/736,511 filed on Dec. 12, 2012, all of which are incorporated by reference herein in their entireties.
FIELD OF INVENTIONThe present invention relates to weather measurements, and more specifically, to mobile weather measurement systems that may be integrated with existing, on-board vehicle electronics.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENTNo federal funds were used to develop or create the invention disclosed and described in the patent application.
REFERENCE TO SEQUENCE LISTING, A TABLE, OR A COMPUTER PROGRAM LISTING COMPACT DISK APPENDIXNot Applicable
AUTHORIZATION PURSUANT TO 37 C.F.R. §1.171 (d)A portion of the disclosure of this patent document contains material which is subject to copyright and trademark protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyrights whatsoever.
BACKGROUNDWeather monitoring and forecasting is improved by increased granularity in data sampling. Traditional fixed-site sampling is done at airports and in some cases road weather stations (small weather stations along a highway); however, these fixed sites are usually separated by dozens of kilometers. Significant weather often goes undetected between fixed sites.
Telemetry and/or telematics as related to vehicles are growing fields, as evidenced by U.S. Pat. Nos. 7,706,965; 7,813,870; 7,831,380; 7,899,611; 7,908,076; 7,912,627; 7,912,628; 8,014,936; 8,065,073; 8,090,524; 8,160,805; and 8,190,362, all of which are incorporated by reference herein in their entireties.
Precipitation sensors such as those used to detect rain falling on a vehicle windscreen measure changes in reflectance or capacitance at that surface. Unless there is a mechanism in place to remove accumulated moisture, the precipitation level detected does not give a reliable indication that precipitation is continuing due to mobility of the accumulation. Such sensors are also particularly poor at detecting dry snow and hail as individual particles may not even contact the sensing elements.
Detection of approaching storm fronts is particularly difficult. Weather radars can give an indication, but this is generally over a large geographical area and do not give a good indication within smaller areas. It is generally accepted that electrical discharges are associated with active storm fronts. These may manifest themselves as discharges between clouds and earth or within the storm clouds. Discharges within clouds may, or may not, be visible or audible from the ground. Both types of discharge do produce characteristic bursts of broad-band electrical interference which may be detected by a radio receiver. Algorithms have been developed to convert such bursts into an estimation of distance between receiver and discharge location. The majority of discharges are associated with the leading edge of the storm system and the distance estimation of the discharge is therefore and estimation of the distance to the storm front. When measurements are made over a period of time from multiple vehicles, or a single vehicle at multiple locations, it is possible to use such data to triangulate the location and heading of the storm front.
In order that the advantages of the invention will be readily understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments of the invention and are not therefore to be considered limited of its scope, the invention will be described and explained with additional specificity and detail through the use of the accompanying drawings.
Before the various embodiments of the data collection method and apparatus are explained in detail, it is to be understood that the present disclosure is not limited in its application to the details of construction and the arrangements of components set forth in the following description. The data collection method and apparatus is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that phraseology and terminology used herein with reference to device or element orientation (such as, for example, terms like “front”, “back”, “up”, “down”, “top”, “bottom”, and the like) are only used to simplify description of the figures, and do not alone indicate or imply that the device or element referred to must have a particular orientation. In addition, terms such as “first”, “second”, and “third” are used herein and in the appended claims for purposes of description and are not intended to indicate or imply relative importance or significance. As used herein, the term “sensor” may indicate the specific sensing unit of a given sensor or the sensing unit and other components (e.g., circuitry, logic controllers, etc.) needed to allow the sensing unit to perform as desired.
The following detailed description is of the best currently contemplated modes of carrying out illustrative embodiments of the data collection method and apparatus 10. The description is not to be taken in a limiting sense, but is made merely for the purpose of illustrating the general principles of the data collection method and apparatus 20, since the scope thereof is best defined by the appending claims. Various inventive features are described below herein that can each be used independently of one another or in combination with other features.
Before the various embodiments of the present methods are explained in detail, it is to be understood that the methods are not limited in their application to the details of applications and/or parameters set forth in the following description or illustrated in the drawings. The methods are capable of other embodiments and of being practiced or of being carried out in various ways. Operational parameters included herein are for illustrative purposes only, and in no way limit the scope of the present methods.
The illustrative embodiments of a data collection method and apparatus 10 may provide a mobile data collection system for various uses, including but not limited to weather monitoring and forecasting. The data collection method and apparatus 10 and/or resulting data collection system may be in communication with the existing electrical and/or communication circuitry on a vehicle (e.g., via CAN, D2B, wirelessly, etc.).
Initial proof-of-concept testing involved siting individual sensors, such as a temperature sensor, on the front of a commercial vehicle, then establishing a connection through the vehicle's telemetry to pass an ‘observation’ to a central computer with which the vehicle communicated. This approach was conducted for three specific sensors: air temperature, road-surface temperature, and relative humidity. After this proof-of-concept testing, the inventor bundled the instruments/sensors into an enclosure (“data collection unit”) that would be mounted at least one meter above the road surface. Because the instruments/sensors were positioned in an enclosure, they were sheltered from air rushing past (as was the case during proof-of-concept with instruments in the front of the vehicle). Accordingly, the data collection unit may require aspiration so that fresh ambient air was always circulating into the enclosure and registering with the instruments/sensors. The road-surface temperature sensor may remain separate, placed near the bottom of the vehicle, relatively close to the road surface, for optimal sensing. The instruments/sensors inside the enclosure may be increased and/or decreased in number. In addition to sensing of air temperature and relative humidity, other sensors may be added, including but not limited to those for sensing barometric pressure, light, precipitation, lightning distance detection, and ozone.
Mobile platforms offer a way to increase meteorological and environmental data sampling between fixed sites. The data obtained by mobile platforms provides information in areas never or infrequently sampled, which may improve meteorological predictive capability, as well as potentially alert the traveling public about a danger that exists, which danger would not be uncovered by fixed-site sampling.
Variable speed and/or movement of the data collection apparatus 10 can produce turbulence around the enclosure, which turbulence can produce variations in the pressure. Exposure to direct sunlight can produce localized heating. It is contemplated, therefore, that the enclosure be aerodynamically profiled to minimize pressure variation and the airflows may be engineered to ensure that the air temperature measured by the instrument unit is a true reflection of the actual value of the surrounding air resulting in true meteorologically approved data.
Generally, the illustrative embodiment of a data collection method and apparatus 10 comprises one or more data collection units (which may be simply configured as a sensor or as a plurality of sensors integrated into a single enclosure or other structure) and one or more databases. Each data collection unit may be configured to collect various types of data and relay that data to a database in real time (or near real time), or store the data on the data collection unit (or other device having data storage capability) for later download.
One embodiment of a data collection apparatus 10 as shown in
A simplified schematic of the communication and/or power configuration for a first illustrative embodiment of a data collection method and apparatus is shown in
Various sensors may be positioned in or on the main sensor assembly 100, including but not limited to air pressure, air humidity, air temperature, light level and/or irradiance, precipitation rate, ozone level, carbon dioxide and/or monoxide level, nitrous oxide level, and methane level. Alternatively, the air quality sensors may be incorporated into a separate housing to optimize placement. The optimal combination of sensors will vary from one application to the next, and therefore the combination thereof is in no way limiting to the scope of the data collection method and apparatus. A surface temperature sensor 50 may be mounted external to the main sensor assembly 100, or it may be mounted external thereto to achieve relatively close proximity to the road, ground, and/or water surface, depending on the embodiment of the data collection apparatus 10.
The main sensor assembly 100 may be designed to achieve a smooth laminar airflow with minimal turbulence at inlet and exhaust vents. This minimizes the creation of a low pressure area at those ports that could adversely affect pressure measurements. The main sensor assembly 100 may include baffles 124 to minimize intake of undesired matter (e.g., water, debris, foreign matter) and/or to minimize heating of internal sensors by radiant energy from the sun. A fan 144 may be fitted to the main sensor assembly 100 for continual exchange of air being sensed to increase the accuracy of temperature, humidity, ozone levels, and/or any other air parameter sensor, if such sensors are included in that particular embodiment. The air flow rate may be selected to minimize evaporative cooling effects, and the fan 144 may be placed in the exhaust stream to avoid heating of the air passing over the sensors. Layout of the printed circuit boards supporting the sensors may be engineered to minimize power consumption and to avoid localized heating of sensors from heat generated by the circuit elements.
All sensors engaged with the main sensor assembly 100 may be in communication with a data transponder (which may integrated with a controller 170), which may in turn be in communication with a vehicle telematics unit 15 or a telematics unit 15 integrated into the data collection apparatus 10 and/or a component thereof (such as one illustrative embodiment of a wind sensor 40 described and pictured herein). In one embodiment, a standard 1 Mb/s CANBUS may be used for the various sensors to communicate with one another and/or the transponder, and for the transponder to communicate with the vehicle telematics unit 15. Other structures and/or methods for facilitating this communication may be used between the system units, or between system units and external devices. The telematics unit 15 may provide GPS location data, time, and/or other data (e.g., vehicle speed, throttle position, etc.) to the data from the data collection apparatus 10 to create a complete data packet. Alternatively, GPS location data, time, and/or other data may be provided via a separate GPS unit positioned elsewhere within the data collection apparatus 10. A complete data packet may be stored locally or it may be transmitted to an external location.
It is contemplated that one embodiment of a precipitation sensor 150 may be configured as a sensor integral with the main sensor assembly 100, wherein the electrical resistance of that sensor changes according to precipitation levels to give an indication of rain intensity. Properly calibrated, this precipitation sensor 150 may be accurate and precise enough to respond to foggy conditions. Alternatively the precipitation sensor 150 may embody a transmissive or reflective system whereby a beam of light, having a wavelength in the visible or infra-red range, is detected at a level that varies according to whether droplets of moisture affect the properties of the path from emitter to detector, as described in further detail below.
It is contemplated that one embodiment of an ambient light sensor may be positioned under a clear cover such that the sensor may respond to all light levels normally encountered from full sunlight (up to 200,000 lux) down to complete absence of visible light (0 lux). To achieve such a range, one embodiment of an ambient light sensor uses a digital sensor with a maximum sensitivity of 100,000 lux and a full spectrum filter to double its range, wherein the resolution may be from 1 to 100 lux. Alternatively a pyranometer 160 may be included wherein the sensing element is a thermopile or cosine compensated silicon photodiode. Such an embodiment would have the capability of measuring irradiance over the range of 0 Watts/m2 to at least the maximum generally accepted value of 1400 Watts/m2 for full sunlight at altitude with the sun directly overhead. The resolution of such a device may be 0.1 Watts/m2.
It is contemplated that one embodiment of a barometric pressure sensor 177 may be digital and may have an operating range of 300 hPa to 1100 hPa. This allows for accurate pressure measurements, and may have a resolution of 0.01 hPa.
It is contemplated that one embodiment of a temperature/humidity sensor 135a may be digital and may have an operating range of 5% Rh to 100% Rh with a resolution of 0.01% Rh. This sensor 135a may be temperature-compensated for increased accuracy and may be fitted with a filter that allows it to function even if small droplets of water are deposited upon its surface from the measurement air stream.
It is contemplated that one embodiment of a temperature/humidity sensor 135a may be digital and may have an operating range of −40° C. to +80° C. and a resolution of 0.0625° C., which allows accurate temperature measurements. Such a device may be integral with the humidity and/or barometric pressure sensor. 177.
It is contemplated that one embodiment of a lightning sensor 135b may be digital and may have an operating range of 0 to 40 kilometers. Such a sensor 135b may incorporate hardware or software algorithms to discriminate against false indications caused by impulse or burst-type electrical interference commonly experienced with vehicle electrical systems.
It is contemplated that one embodiment of an ozone sensor 135c may be analogue and may have an operating range of 0 to 1000 ppb and a resolution of 1 ppb.
In the illustrative embodiment, all sensors may be controlled by one or more automotive grade microprocessors that may have analogue inputs, an I2C interface for communication to the digital sensors, and a CANBUS interface for communication to the other units in the system. Power may be supplied from the vehicle battery system and sophisticated switched mode regulators may provide stable low voltage supplies from inputs of 6 to 28 volts DC or such a range as may be found on commercial and/or private-use vehicles.
One illustrative embodiment of a surface temperature sensor 50 may incorporate a narrow angle infra-red thermometer 55 at the proximal end of a hood 54b. This thermometer 55 may have an operating range of −40° C. to +100° C. with a resolution of 0.01° C. The configuration of the hood 54b and thermometer 55 may have at least two main functions. Firstly it may prevent ambient sunlight from striking the sensing element either directly or by reflection, and secondly the air column formed in the hood 54b may effectively block contamination of the sensing element by dirt and moisture from the road surface.
The thermometer 55 may measure the average temperature of all objects impinging into a cone described by subtending an included angle of 10° from the sensing element. The hood 54b may be sized such that no part impinges on the cone of measurement. When fitted to the vehicle 12, the surface temperature sensor 50 may be positioned so that no part of the vehicle structure impinges into the measurement cone. Under these conditions the surface temperature sensor 50 effectively measures the average temperature of a disc on the surface underneath the vehicle 12 to which the surface temperature sensor 50 is engaged. Under ideal circumstances this disc is 100-200 mm diameter, and specifically approximately 105 mm with the sensing element positioned between 200-1000 mm above the road surface, and specifically approximately 600 mm.
The surface temperature sensor 50 may be controlled by an automotive grade microprocessor, which may have an I2C interface for communication to the digital sensor and a CANBUS interface or other communications interface for communication to the other units in the system. Power may be provided from the vehicle battery system and a sophisticated switched mode regulator may provide stable low voltage supplies from inputs of 6 to 28 volts DC or such a range as may be found on commercial and/or private-use vehicles.
A controller 170 may provide a central communications hub for the data collection apparatus 10. An automotive grade microprocessor with CANBUS or other bus-type interface and serial interfaces may monitor bus activity and route messages according to the address header. Upon receipt of certain predefined messages, the controller may forward the data via the serial interface to the vehicle telematics unit 15 or other communications system where it may be stored, compressed, analysed, and/or transmitted (e.g., via a radio modem) to a central data server. Power may be derived from the vehicle battery system or other power source (e.g., wind and/or solar generators). A sophisticated switched-mode regulator may provide stable low voltage supplies from inputs of 6 to 28 volts DC or such a range as may be found on commercial and/or private-use vehicles.
To further improve accuracy, the sensors and their associated microprocessors and/or circuitry may be configured to store calibration parameters to offset or modify measurements. Such parameters may be read or updated by physical connection to the sensor units and/or data collection apparatus 10, or via an over-the-air communications system from a remote location. Such updating may be provided in real-time with no resets necessary to incorporate the revised settings.
Any sensor in the data collection apparatus 10 may take frequent observations at a programmable interval (e.g., 10 seconds). The reporting interval may be read or updated by physical connection to the sensor units and/or data collection apparatus 10, or via an over-the-air communications system from a remote location. The observations include but are not limited to air temperature, surface (e.g., road) temperature, relative humidity, barometric pressure, ambient light, precipitation rate, wind speed, and ozone. This rate of frequency of observation provides the ability to detect meteorological or environmental phenomenon at a spatial interval of 275 meters (at typical highway speed). The data can help identify local hazards including but not limited to black icing, precipitation, or fog. The microscale resolution of the observations is helpful to meteorologists who need to determine weather conditions between fixed sites. The pavement temperature attribute can help meteorologists or transportation officials determine where pavement conditions are a potential hazard and areas that subsequently might require anti-ice treatment.
The CANBUS interface may be especially useful in various embodiments of the data collection method and apparatus 10 due to its widespread adoption for this type of application. Alternatively any other protocol may be used such as serial or I2C or wireless communications using Bluetooth, Zigbee or any other serial communications protocol. These would be low power and preferably, but not exclusively, utilise frequencies within ISM bands. This creates a road weather information system for any territory in which a data collection apparatus 10 is deployed. This takes advantage of the weather information from at least a 0-2000 foot range. Additionally, the various elements of the data collection method and apparatus 10 as disclosed herein may be in communication with one another (e.g., sensor-to-sensor, sensor-to-controller, controller-to-transponder, etc.) or with external circuitry (e.g., transponder-to-external computer, controller-to-external computer, etc.) either wired or wirelessly, or using any other suitable method and/or conduit 16 appropriate for the specific application of the data collection method and apparatus 10.
In certain embodiments of the data collection method and apparatus 10, the data collected via a plurality of sensors may be aggregated and analysed using self-learning, artificial intelligence. In such an embodiment, the accuracy of any weather predictions may be increased via subsequent data analysis based on historical patterns given the enormous amount of data the present disclosure may provide. It is contemplated that a predictive model employing such a self-teaching analysis program, which would become more accurate after each analysis, will be much more accurate and efficient than current weather prediction models.
Certain embodiments of the data collection method and apparatus 10 as disclosed herein may be configured to operate via interval sensing or via adaptive interval sensing. If configured to operate via interval sensing, the sensor observations may be collected every n seconds, and may be buffered and sent back to a collection point at a predetermined frequency. It is contemplated that in certain situations, this method of operation may miss anomalies in the observations if such anomalies occur between the sensing intervals.
If configured to operate via adaptive interval sensing, the sensor equipment may be configured to poll at much faster intervals, which may be as fast as multiple times per second depending at least upon the type of sensor used. The controller 170 (or any other component of a data collection method and apparatus 10 having the necessary hardware and/or software) may be configured to analyze this data in real-time and buffer observations every n seconds (emulating regular interval sensing). As part of the real-time analysis, the telematics box also may be configured to identify/detect anomalies and/or patterns in the data, which identification/detection may trigger out-of-band observation buffering for as long as an anomaly is detected. Utilizing these various techniques, the data collection method and apparatus 10 may be capable of capturing all anomalistic observations while simultaneously keeping data usage within practical limits. The data collection method and apparatus 10 may be configured so that one may adapt the interval during non-anomalistic conditions to account for the extra data usage from data used during anomalistic observations. The interval may be continuously in flux as anomalistic conditions are detected and then accounted for (based on total data used) by increasing interval length during the non-anomalistic observation periods, eventually returning to the n second intervals. The data collection method and apparatus 10 may be configured to always to try to return to the n second observation interval.
In one illustrative embodiment, the various sensors take a reading every 10 seconds, and 2-minutes worth of the data from those sensors is stored in a buffer prior to transmission. However, when configured to operate via adaptive interval sensing, the controller 170 (or other component of the data collection method and apparatus 10 having the necessary hardware and/or software) may be configured to identify anomalies, abnormalities, highs, and/or lows in data from a given sensor, and/or other specific weather event and/or environmental condition or potential therefor. When the controller 170 (or other component capable of such identification) identifies such an event, the controller 170 (or other component configured with the necessary capability) may command the sensor experiencing the event to take a reading every 1 second or such lesser interval as may be considered suitable having regard to the parameter being sensed. Additionally, the controller 170 (or other component configured with the necessary capability) may be configured to allow the data from this event to be transmitted immediately rather than stored in a buffer.
In an illustrative embodiment of the data collection method and apparatus 10, the various sensors may be continually sensing (e.g., taking a reading every 1 second), and each sensor may have the inherent capability of identifying an anomaly, abnormality, high, and/or low in data which that sensor is reading, or other specific weather event and/or environmental condition or potential therefor. This capability may be through a microprocessor integrated with the sensor or via the communication between the sensor and the controller 170 (or other component of the data collection method and apparatus 10 capable of such identification). Accordingly, the sensor experiencing such an event, or a component in communication with the sensor, may alert the controller 170 (or other relevant component of the data collection method and apparatus 10), which may in turn increase the rate at which data from that sensor is recorded, and/or increase the rate at which data from that sensor is transmitted to a database and/or analyzed.
For example, if a surface temperature sensor 50 senses a decrease in the surface temperature of a road at an abnormal rate (e.g., 3 degree temperature decrease in 5 seconds), the controller 170 (or other relevant component of the data collection method and apparatus 10) may increase the rate at which data from the surface temperature sensor 50 is recorded (e.g., from 10 seconds to 1 second) and/or increase the rate at which that data is transmitted to a database and/or analyzed (e.g., from 2 minutes to 1 second). In this example, adaptive interval sensing may allow the data collection method and apparatus 10 to detect a potentially slippery road surface and/or provide alerts thereof. However, as is apparent to those of ordinary skill in the art in light of the present disclosure, a data collection method and apparatus 10 configured for adaptive interval sensing may provide an infinite number of benefits related to detecting various environmental and/or meteorological conditions without limitation.
Additionally, in a data collection method and apparatus 10 configured with adaptive interval sensing, one or more components of the data collection apparatus 10 (e.g., controller 170, surface temperature sensor 50, precipitation sensor 30, etc.) may be accounted for simultaneously to create cases for different types of conditions. In such an embodiment the combination of different data from more than one sensor over a given period of time may give rise to the identification of and anomaly, abnormality, high, and/or low in data which that sensor is reading, or other specific weather event and/or environmental condition or potential therefor.
A perspective view of a vehicle having a cab 12a and a deflector 12b mounted on top thereof with which certain embodiments of a data collection method and apparatus 10 may be used is shown in
Other embodiments of the data collection method and apparatus 10 and components thereof are disclosed below, as are different communication methods and structure therefor, as well as different mounting positions for the various components of the data collection method and apparatus 10. Accordingly, the scope of the data collection method and apparatus 10 as disclosed herein is in no way limited by the method and/or structure used to allow for communication between the various components of the data collection method and apparatus 10 and/or between the data collection method and apparatus 10 and an external device, nor is the scope limited by the mounting methods, structure used therefor, and/or positions of any component of the data collection method and apparatus 10.
Illustrative Embodiment of a Main AssemblyAn illustrative embodiment of a main assembly 100 is shown from an elevated, rear perspective in
In
As shown in
A precipitation sensor 150 may be engaged with the exterior housing 110 on a top surface thereof.
Still referring to
The main assembly 100 may include an interior member 130 positioned internally with respect to the exterior housing 110.
The main sensing chamber 134 may be bound on either side by a side wall 136, on top by a top wall 138, and on the bottom by the interior surface of the base 120. The back surface of the main sensing chamber 134 opposite the entrance zone 132 may be bound by an exhaust fan housing 140, and a front opening 139 may be configured at the leading edge of the interior member 130. The front of the main sensing chamber 134 may be open and in fluid communication with an interstitial area 102 between the external surface of the interior member 130 and the internal surface of exterior housing 110. The interstitial area 102 may extend along the exterior of the sides walls 136 and top wall 138. It is contemplated that the optimal distance, relative shape, and/or configuration between the external surface of the interior member 130 and the internal surface of exterior housing 110 may vary from one application of the main assembly 100 to the next, and is therefore in no way limiting to the scope of the present disclosure. However, for some applications it may be optimal to configure the interstitial space 102 as generally rectangular, wherein the distance between the external surface of the interior member 130 and the internal surface of exterior housing 110 is between 2 and 8 mm along the side walls 136 and between 3 and 12 mm along the top wall 138. Along with serving as a duct for air passing through the main assembly 100 (as described in detail below), the interstitial area 102 may also provide insulation and/or a thermal break between the exterior housing 110 and the interior member 130. Accordingly, if the exterior housing 110 experiences heating (e.g., from solar radiation), any transmission of that heat to the main sensing chamber 134 is minimized, which
Primary circuitry 138a for the main assembly 100 and various sensors positioned therein may be positioned on a printed circuit board (PCB) engaged with the interior of the top wall 138. The various sensors within the main assembly 100 may be engaged with this primary circuitry 138a and may be mounted directly on the PCB. As clearly shown in
The interior member 130 may be engaged with the extensions 122 of the base 120. A fastener 104 may pass through each extension and serve to engage the interior member 130 and/or exterior housing 110 with the base 120. However, any other engagement methods and/or structures therefor may be used with the data collection method and apparatus 10 without limitation, including but not limited to plastic tabs and corresponding recesses, bolts, chemical adhesives, and/or combinations thereof.
An exhaust fan housing 140 may be configured in the interior member 130 at the rear end of the main assembly 100 opposite the baffle 124. The exhaust fan housing 140 may be bound by a side wall 146 on either side, an end wall 147 adjacent the main sensing chamber 134. An exit zone 142 may be formed opposite the end wall 147 such that the exhaust fan housing 140 may be in fluid communication with the exterior of the main assembly 100 via the outlet 114 formed in the exterior housing 110. The filter 118 previously described may extend to the outlet 114 to mitigate contamination of the exhaust fan housing 140. A fan 140 may be engaged with the top wall 148 adjacent a fan inlet 148a that may be formed in the top wall 148. The fan 144 may be configured to provide fluid and/or air circulation to the main assembly 100 by drawing air from the interstitial area 102, through the fan inlet 148a, and out of the main assembly 100 via the exit zone 142 and outlet 114. In such a configuration, the fan 144 may be configured to provide aspiration to the entire main assembly 100, as air and/or fluid drawn from the interstitial area 102 may be replenished by air and/or fluid exiting the main sensing chamber 134 at the front opening 139, air and/or fluid drawn from the main sensing chamber 134 may be replenished by air and/or fluid entering the main sensing chamber 134 at the entrance zone 132, and air and/or fluid drawn from the entrance zone 132 may be replenished by ambient external air and/or fluid entering the main assembly 100 through the inlet 112 and filter 118.
Another illustrative embodiment of a main assembly 100 is shown in an exploded view in
A perspective view of one illustrative embodiment of a precipitation sensor 150 is shown in
The illustrative embodiment of a precipitation sensor 150 may include a clear precipitation sensor base 158 with two raised areas protruding therefrom—an IR transmitter housing 152 with a transmitter positioned therein and an IR receiver housing 154 with a receiver positioned therein. The housings 152, 154 may be configured such that there is an open channel therebetween. The transmitter may be configured to emit a narrow beam of infrared light directly at the receiver. The receiver may detect and filter the signal level from the receiver before being processed by a microprocessor, which may be located precipitation sensor circuitry 151, which may be positioned in or near the precipitation sensor base 158. A system of automatic adjustment of emitter power may be incorporated to compensate for any build-up of dirt, which could influence the received intensity of the IR beam in the absence of any precipitation.
Moisture droplets passing through the beam will produce a reduction in received signal. This reduction may be used to provide an indication of precipitation level. It has been observed that moisture in the form of single large droplets produces a different characteristic signal to that from small, dispersed droplets. The precipitation sensor 150 is thus able to provide an indication of the precipitation type as well as intensity. Infrared light may be used rather than visible light to minimize the potential interference caused by sunlight incident on the receiver. The microprocessor may be configured with built-in calibration routines to counter long-term degradation in function and/or reliability of the transmitter and/or receiver, and/or reduction in the levels of light the receiver detects caused by surface degradation of the IR transmitter housing 152 and/or IR receiver housing 154 and/or accumulations of surface contamination on the precipitation sensor 150.
The precipitation sensor base 158, IR transmitter housing 152, and IR receiver housing 154 may be constructed of a material with high transparency to the transmitted wavelength and may, or may not, be transparent to other wavelengths of light. The illustrative embodiment of the precipitation sensor 150, and specifically the use of IR-spectrum wavelengths, has evolved from multiple studies of the problems associated with contact-type precipitation sensors such as contact bridging by ice or airborne debris. Reflectance type sensors are similarly affected. Various transmitter wavelengths were explored and the use of visible wavelengths discarded due to susceptibility to interference from sunlight incident on the receiver and the obvious visibility of the beam.
Illustrative Embodiment of Wind SensorA perspective view of an illustrative embodiment of a wind sensor 40 is shown from the top in
The top portion 41 may include a top portion cover 41a and a top portion base 41b, which may be engaged with one another. The bottom portion 44 may include a bottom portion cover 44a and a cup 44c, which also may be engaged with one another. The illustrative embodiment of a wind sensor 40 is shown with the bottom portion cover 44a removed in
One problem with conventional rotating cup and wind direction vane sensors is that they will not function correctly when placed on a mobile platform once the speed of the platform exceeds a few meters per second. Ultrasonic wind speed and direction sensors exist but they rely on the transit time for a sound wave to travel from source to receiver. The faster the wind speed the shorter the time. To keep the path length short and minimize sensor size there is an effective top limit of 70 m/s on measured speed. This may be satisfactory for a fixed station, but a mobile weather system must function when a vehicle is travelling at 40 m/s into a head wind of 50 m/s, which produces a relative speed of at least 90 m/s. This wind sensor 40 may utilize the change in frequency of a sound wave at a receiver with speed to determine the wind speed and direction.
The illustrative embodiment of a wind sensor 40 comprises a bottom portion 44 housing ultrasonic sensors 45 configured as transmitter and receiver pairs. One pair may be arrange parallel to the axis of the vehicle and the other pair may be normal thereto. The transmitter may emit a known frequency, which may be received by the receiver. The received frequency may be compared with that emitted and the difference therein may be determined via the ultrasonic circuitry 44b. Movement of the wind sensor 40 and wind speed may affect the time taken for a single cycle of the transmitted signal to be received and produce a shift in frequency known as Doppler Shift. Two frequency shifts, one in the direction of travel, and one normal to it, may be determined via the ultrasonic sensor 45 configuration using the ultrasonic circuitry 44b. To determine the wind speed and direction it may be necessary to know the vehicle speed and magnetic heading. This may be obtained by utilization of a built in (or separate) GPS receiver, which may be integrated into the GPS/communication circuitry 48 in the illustrative embodiment. Alternatively an electronic compass may be utilized to obtain the heading, and data from the vehicle systems used to determine the speed. These two sets of data may be used to determine the actual wind speed and direction. Data may be validated and scaled within the wind sensor 40 via the ultrasonic circuitry 44b to minimize data errors. Data from the wind sensor 40 may be relayed to a telematics unit 15, which may be integrated into the wind sensor 40 or which may be an external device, where GPS location and time of collected data may be added and the full data packets may transmitted to another location for further processing and/or storage.
Illustrative Embodiment of a Road Temperature SensorAn elevated perspective view of a first illustrative embodiment of a surface temperature sensor is shown in
The base 54 may include a mounting bracket 54a and a hood 54b, both of which may be integrally formed with the base 54 or which may be separately formed and later engaged with the base 54. It is contemplated that the mounting bracket 54a may provide a convenient place to attach the surface temperature sensor 50 to a vehicle, but any attachment method and/or structure may be used without limitation. Surface temperature sensor circuitry 58 may be positioned within the base 54, which is clearly shown in
A thermometer 55 may be positioned adjacent the proximal end of the hood 54b and engaged with the surface temperature sensor circuitry 58. It is contemplated that the hood 54b may have a slight taper (e.g., one degree) along its length in certain embodiments depending on the method of manufacture of the hood 54b, which taper may ease removal of the hood 54b from a mold. One or more lenses 57 may be positioned in the hood 54b distally with respect to the thermometer 55 to minimize any sunlight reaching the thermometer 55. Additionally, if a lens 57 is positioned between the thermometer 55 and the distal end of the hood 54b, the amount of contaminants reaching the lens 57 may be reduced, yielding a more accurate reading. A seal 14 may be positioned around the periphery of the lens 57 to ensure no contaminants pass between the periphery of the lens 57 and the hood 54b.
It is contemplated that for some applications it may be optimal to mount the surface temperature sensor 50 approximately 0.5 m above the surface toward which the thermometer is directed, as this distance results in the thermometer 55 measuring a disk of approximately 100 mm in diameter. In land vehicles this surface would oftentimes be a road surface, which may be pavement, brick, gravel, dirt, concrete, asphalt, rock, combinations thereof, and/or any other surface that a vehicle may traverse. It is also contemplated that a length of 55 mm may be optimal for the hood 54b in certain applications.
Another embodiment of a surface temperature sensor 50 is shown in
An illustrative embodiment of a controller that may be used with certain embodiments of a data collection method and apparatus 10 is shown in perspective in
The controller 170 may include controller circuitry 176, which may comprise a microprocessor, to provide the desired functionality of the controller 170 for the specific embodiment of a data collection apparatus 10. A barometric pressure sensor 177 may also be engaged with the controller circuitry 176 to sense and/or read the atmospheric pressure experienced by the controller 170. It is contemplated that this data will be useful in most embodiments of the data collection method and apparatus 10.
The controller 170 may be configured to control various other components of the data collection apparatus 10. For example, the controller 170 and main assembly 100 may be configured so that the controller 170 dictates when and at what rate the temperature/humidity sensor 135a in the main assembly 100 makes a reading and which of and at what rate those readings are recorded. The controller 170 may be configured to dictates these operational parameters to any other component in the data collection apparatus 10, or certain components (e.g., surface temperature sensor 50, wind sensor 40, etc.) may be configured to control the rate at which they make a reading and which of and at what rate those readings are recorded. Alternatively, different components may operate independently from the controller 170 under normal conditions, and operate under the direction of the controller 170 in the event of an abnormality, anomaly, malfunction, and/or other uncommon event. Each individual component may be configured to monitor the data that it reads, and it may be configured to notify the controller 170 is any uncommon event is likely to occur, is occurring, or has occurred.
The illustrative embodiment of a controller 170 shown in
The controller 170 may be in communication with a telematics unit 15 on the vehicle 12. A telematics unit 15 may be in communication with the existing vehicle information and/or diagnostic system, and it may use data therefrom to increase the accuracy of atmospheric data or make corrections thereto. Alternatively, if the data collection apparatus 10 includes a wind sensor 40 such as the illustrative embodiment previously described herein, the controller 170 may employ the wind sensor 40 and associated GPS/communication circuitry 48 therein to receive data that would typically come from a telematics unit 15 (e.g., GPS location data, time, speed, altitude, etc.) and to communicate data remotely. It is contemplated that the remote data communication may be performed via any suitable method using any structure suitable for the method chosen, including but not limited to 2G, 4G, or LTE wireless communication methods.
Regardless of whether the data collection apparatus 10 is in communication with an existing telematics unit 15 or if the data collection apparatus 10 employs a component therein having the necessary functionality of a telematics unit 15 (e.g., through GPS/communication circuitry 48 in a wind sensor 40), the controller 170 may direct a telematics unit 15 (or similarly functional component) to communicate data (to an external device, including but not limited to a database) from one or more components of the data collection apparatus 10 (e.g., wind sensor 40, surface temperature sensor 50, barometric pressure sensor 177, temperature/humidity sensor 135a, lightning sensor 135b, ozone sensor 135c, etc.) outside the regular reporting schedule and/or reporting intervals for which the controller 170 and/or telematics unit 15 is configured. It is contemplated that this change of reporting schedule and/or reporting intervals may be triggered via adaptive interval sensing as previously described herein.
In an illustrative embodiment of a data collection apparatus 10, the main sensor assembly 100 may include a temperature/humidity sensor 135a, a lightning sensor 135b, an ozone sensor 135c, and an air quality sensor; the controller 170 may include a barometric pressure sensor 177 as described above, and a surface temperature sensor 50 and a wind sensor 40 may be included as distinct structures. However, the scope of the present disclosure is not so limited and extends to different combinations of various sensors in one or more housings without limitation.
Illustrative Embodiments of Communication/Power/Control SchemesAn illustrative embodiment of one method of providing power and/or data connections to the illustrative embodiment of a controller 170 shown in
An illustrative embodiment of one method of providing power and/or data connections to the illustrative embodiment of a main assembly 100 shown in
As shown, the main assembly 100 may be configured with primary circuitry 138a comprising a microprocessor, which microprocessor may be in communication with, including but not limited to, any sensor within the main assembly 100 (e.g., temperature/humidity sensor 135a, lightning sensor 135b, ozone sensor 135c, air quality sensor), any sensor engaged with the exterior housing 110 (e.g., pyranometer 160, precipitation sensor 150), or any other sensor in that specific embodiment of a data collection apparatus 10. The microprocessor in the main assembly 100 and the microprocessor in the controller 170 may be configured such that the microprocessor in the main assembly 100 is a slave to that in the controller 170. The microprocessor and primary circuitry 138a may be configured to continuously monitor the sensors engaged with or positioned within the main assembly 100 and/or any other sensors in the data collection apparatus 10. If the microprocessor in the main assembly 100 detects any data of special significance (e.g., abnormalities, maximums, minimums, etc.), which special significance may be predetermined and programmed into a computer executable method residing on the data collection apparatus 10, the microprocessor may be configured to send that data to the controller 170 immediately with instructions to pass that data on to the telematics unit 15 immediately, and with instructions for the telematics unit 15 to communicate it immediately with an external database or another external device (e.g., via providing a message header indicating a communication priority for that data). In some embodiments, the controller 170 may be configured to also serve as a telematics unit 15, or another component of the data collection apparatus 10 may be configured as a telematics unit 15 (e.g., a wind sensor 40), in which case fewer steps may be required for the data collection apparatus 10 to communicate the data to a database or other external device. In either embodiment, the data collection apparatus 10 may be configured with a memory unit to record and save data prior to transmission to an external device.
An illustrative embodiment of one method of providing power and/or data connections to the illustrative embodiment of a surface temperature sensor 50 shown in
An illustrative embodiment of one method of providing power and/or data connections to the illustrative embodiment of a precipitation sensor 150 shown in
The illustrative embodiment of a precipitation sensor 150 shown in
An illustrative embodiment of one method of providing power and/or data connections to the illustrative embodiment of a pyranometer 160 shown in
An illustrative embodiment of one method of providing power and/or data connections to the illustrative embodiment of a wind sensor 40 shown in
Generally, it is contemplated that a portion of the illustrative embodiment of a wind sensor 40 may function in a manner similar to that in which prior art ultrasonic wind sensors function. As shown, the wind sensor 40 may include four ultrasonic transceivers oriented in a cross pattern. Each transceiver may be in communication with an amplifier and a driver. Each amplifier may be in communication with a multiplexer, and a distinct amplifier may be employed. All components of the ultrasonic circuitry 44b may be in communication with and/or controlled by a microprocessor.
It is contemplated that a GPS unit (not shown, but which may be included in a telematics unit 15) and GPS/communication circuitry 48 may be employed to correct data from the wind sensor 40 for the direction and speed of the vehicle to which it is mounted. Accordingly, in an embodiment of a data collection apparatus 10 having an embodiment wind sensor 40 such as that shown in
All sensors included in a particular embodiment of a data collection method and apparatus 10 may be monitored constantly for out-of-range data or non-existent data, which monitoring may be done via a computer executable method residing on the controller 170, circuitry on the sensor itself, or another component of the data collection apparatus 10. In the event that such data is detected, the controller 170 may be configured such that the microprocessor in the controller circuitry 177 includes in-built recovery routines in a computer executable method that attempt to restore correct operation without the need for physical resets of any component of the data collection apparatus 10. This configuration may also allow components of the data collection apparatus 10 to be hot “pluggable” with respect to the controller 170, and accordingly with respect to the data collection apparatus 10. It is contemplated that an I2C bus may provide optimal functionality in such a configuration, which may allow addressability and accessability among all components of that embodiment of a data collection apparatus 10. An example of such a scheme is shown in the process flow of
An illustrative embodiment of one computer executable method that may be used with certain embodiments of the data collection method and apparatus 10 is shown schematically in
The illustrative embodiment of the method may repeat in a loop-like fashion for all active sensors, in which the method monitors data and/or specific parameters of all active sensors. The method may be configured to monitor the time required for each active sensor to take a reading. As shown, if the read time is normal, the method may validate and scale the data and then add the resulting value to a data array. The data in the data array may be stored locally indefinitely, the data may be placed in a buffer and communicated to an external device at predetermined periods, or the data may be communicated to an external device in real time or near real time.
The method may also monitor the value of the data from an individual sensor to monitor if that value triggers a predetermined alert (e.g., maximum, minimum, change from last value, etc.). If the value triggers such an alert, the method may include instructions for that data to be communicated to other components of the data collection apparatus 10 and/or an external device immediately. The method shown in the rectangle in
Any individual sensor and/or component of a specific embodiment of a data collection apparatus 10 may be formed with a communication/power interface for wired communication via a suitable conduit 16 with another device and/or to receive electrical power from another device using any method and/or structure suitable for the particular application of the data collection apparatus 10. The specific location and/or mounting point of the communication/power interface is not limited by the illustrative embodiments pictured and described herein, and the scope of the present disclosure is in no way limited thereby. In other embodiments, any individual sensor and/or component of a specific embodiment of a data collection apparatus 10 may also be configured to communicate wirelessly with other devices without limitation, in which case a power interface may be required for that specific individual and/or component.
Any individual sensor and/or component (e.g., controller 170, main assembly 100, telematics unit 15, etc.) of the data collection apparatus 10 may be configured with a predetermined amount of memory. Any microprocessor and/or properly configured circuitry in communication with the memory may be configured to record specific data on that memory. The controller 170 may be configured with a central memory unit. Any of the microprocessors and/or properly configured circuitry in any embodiment of the data collection method and apparatus 10 may be configured to receive instructions in the form of one or more computer executable methods. It is contemplated that the computer executable methods may be updated and/or changed at any time the user desires in a wired or wireless manner, without limitation. It is further contemplated that the computer executable methods may be configured to employ all the functionality desired for the specific embodiment of the data collection apparatus 10, including but not limited to interval sensing instructions, adaptive interval sensing instructions, monitoring of data, functionality, and power draw of various sensors, start-up routines, and/or diagnostic instructions for any component in the data collection apparatus 10.
As used herein, the term “circuitry” is meant in its broadest sense, and includes any type of electrical and/or electronic components and/or feature that is required or may be useful for use with the data collection method and apparatus, including but not limited to resistors, RAM, PCB, transistors, diodes, receivers, transmitters, transponders, wiring, microprocessors, microchips, and microelectromechanical systems. It is contemplated that many sensors that are configured to detect an analogue signals but convert those signals to digital may require a microprocessor. Any of the various elements of the various components of a specific embodiment of a data collection apparatus 10 may be engaged with one another and/or secured to one another using any suitable method and/or structure. Accordingly, the various elements may be engaged with one another and/or secured to one another with method including but not limited to mechanical fasteners (e.g., screws, bolts, etc.), chemical adhesives, welding, thermoforming and/or molding, and/or combinations thereof, and the specific method and/or structure used to engage and/or secure one element to another in no way limits the scope of the data collection method and apparatus 10.
The data collection method and apparatus 10 and various components thereof are not limited by the means of construction or the materials chosen. Any suitable material may be used in the construction of the data collection apparatus 10 and various components thereof including but not limited to polymers, metal or metallic alloys, natural materials, and/or combinations thereof.
The preceding constraints and illustrative embodiments in any of the examples included herein (e.g., specific operating ranges, communication protocols, operational parameters, dimensions, orientations, etc.) and relationships between the various components as disclosed and described herein are for illustrative purposes only, and are in no way limiting to the scope of any of the apparatuses and/or methods as disclosed and claimed herein. Furthermore, the various solutions, processes, methods, modules, apparatuses and/or embodiments disclosed or described herein may be implemented in conjunction with one another or independently from one another, depending on the specific embodiment and implementation of the data collection apparatus 10 and method. Accordingly, the presence or absence of other subject matter that may be complementary to the present method and apparatus in no way limits the scope of the present method and/or apparatus.
It should be noted that the data collection method and apparatus 10 are not limited to the specific embodiments described herein, but is intended to apply to all similar method and/or apparatuses for data collection and subsequent analyzing and/or processing thereof. Modifications and alterations from the described embodiments will occur to those skilled in the art without departure from the spirit and scope of the data collection methods and/or apparatuses 10 disclosed herein. Modifications and alterations from the described embodiments will occur to those skilled in the art without departure from the spirit and scope of the data collection method and apparatus 10. Furthermore, variations and modifications of the foregoing are within the scope of the data collection method and apparatus 10. It is understood that the data collection method and apparatus 10 as disclosed herein extends to all alternative combinations of one or more of the individual features mentioned, evident from the text and/or drawings, and/or inherently disclosed. All of these different combinations constitute various alternative aspects of the data collection method and apparatus 10 and/or components thereof. The embodiments described herein explain the best modes known for practicing the data collection method and apparatus 10 and/or components thereof and will enable others skilled in the art to utilize the same. The claims are to be construed to include alternative embodiments to the extent permitted by the prior art.
Claims
1. A data collection apparatus comprising:
- a. a main assembly;
- b. a controller in communication with said main assembly;
- c. a surface temperature sensor in communication with said controller; and,
- d. an air temperature sensor positioned within said main assembly, wherein said air temperature sensor is in communication with said controller, and wherein main assembly is configured for a mobile application.
2. The data collection apparatus according to claim 1 further comprising a barometric pressure sensor positioned within said controller, wherein said barometric pressure sensor is in communication with said controller.
3. The data collection apparatus according to claim 2 further comprising an air humidity sensor positioned within said main assembly, wherein said air humidity sensor is in communication with said controller.
4. The data collection apparatus according to claim 3 further comprising an ozone sensor positioned within said main assembly, wherein said air pressure sensor is in communication with said controller.
5. The data collection apparatus according to claim 4 further comprising an pyranometer positioned on said main assembly, wherein said pyranometer is in communication with said controller.
6. The data collection apparatus according to claim 5 further comprising a precipitation sensor engaged with said main assembly, wherein said precipitation sensor is in communication with said controller.
7. The data collection apparatus according to claim 6 further comprising a wind sensor engaged with said main assembly, wherein said wind sensor is in communication with said controller.
8. The data collection apparatus according to claim 7 wherein said main assembly further comprises an inlet, an outlet, and a fan positioned within said main assembly, and wherein said fan is configured to move ambient air from said inlet to said outlet.
9. The data collection apparatus according to claim 8 wherein said data collection unit is further defined as being configured to be in wired communication with a standard vehicle telematics interface.
10. A data collection method comprising the steps:
- a. engaging a data collection apparatus with a vehicle, wherein said data collection apparatus comprises: i. a main assembly; ii. a controller in communication with said main assembly; iii. a surface temperature sensor in communication with said controller; and, iv. an air temperature sensor positioned within said main assembly, wherein said air temperature sensor is in communication with said controller, and wherein said data collection apparatus is configured for a mobile application
- b. programming said controller to cause said air temperature sensor to take a measurement at a specific time interval;
- c. programming said controller to cause said surface temperature sensor to take a measurement at a specific time interval;
- d. allowing said data collection apparatus to communicate with an existing telematics unit within said vehicle; and,
- e. storing data from said air temperature sensor and said surface temperature sensor.
11. The method according to claim 10 wherein said data collection apparatus further comprises a barometric pressure sensor positioned within controller, wherein said barometric pressure sensor is in communication with said controller, and wherein said method further comprises the step of programming said controller to cause said barometric pressure sensor to take a measurement at a specific time interval.
12. The method according to claim 11 wherein said data collection apparatus further comprises an air humidity sensor positioned within said main assembly, wherein said air humidity sensor is in communication with said controller, and wherein said method further comprises the step of programming said controller to cause said air humidity sensor to take a measurement at a specific time interval.
13. The method according to claim 12 wherein said data collection apparatus comprises a buffer, wherein said controller is configured to cause a first portion of data from said measurement of said surface temperature sensor and said air temperature sensor to be stored in said buffer, and wherein said controller is configured to analyze at least said first portion of data from said measurement of said surface temperature sensor and said air temperature sensor in real-time such that said controller is able to identify an anomaly in said first portion of data.
14. The method according to claim 13 wherein said central controller is configured to cause said specific time interval for said road surface temperature sensor and said specific time interval for air temperature sensor to change depending on said anomaly.
15. A main assembly comprising:
- a. an exterior housing having an inlet and an outlet;
- b. a base engaged with said exterior housing;
- c. an interior member engaged with said base, wherein said interior member is positioned between said base and said exterior housing, wherein said interior member is configured with a main sensing chamber, and wherein a primary circuitry is engaged with said interior member; and,
- d. a temperature/humidity sensor positioned in said main sensing chamber, wherein said temperature/humidity sensor is in communication with said primary circuitry.
16. The main assembly according to claim 15 further comprising a lightning sensor positioned in said main sensing chamber, wherein said lightning sensor is in communication with said primary circuitry.
17. The main assembly according to claim 16 further comprising an ozone sensor positioned in said main sensing chamber, wherein said ozone sensor is in communication with said primary circuitry.
18. The main assembly according to claim 17 wherein said exterior housing further comprises an inlet, an outlet, and a slope, wherein said slope is positioned on a leading edge of said main assembly.
19. The main assembly according to claim 17 wherein said main assembly further comprises an interstitial area positioned between an exterior surface of said interior member and an interior surface of said exterior housing.
20. An adaptive interval sensing method comprising:
- a. monitoring a first type of data from at least one sensor at a first time interval;
- b. recording a first value of said first type of data at a second time interval, wherein said second time interval is greater than said first time interval;
- c. transmitting said first value of said first type of data at a third time interval, wherein said third time interval is equal to or greater than said second time interval;
- d. recording a second value of said first type of data at said second time interval;
- e. comparing said first value of said first type of data to said second value of said first type of data;
- f. detecting a first difference in said first and second values of said first type of data; and
- g. recording a third value of said first type of data at a fourth time interval, wherein said fourth time interval is less than said first time interval.
Type: Application
Filed: Dec 12, 2013
Publication Date: Jul 10, 2014
Applicant: Weather Telematics Inc. (Ottawa)
Inventors: Robert J. Moran (Nepean), Malcolm Leslie Rook (Wold Newton), Darryl Smith (Ottawa)
Application Number: 14/105,142
International Classification: G01W 1/02 (20060101);
