Inductive Patents (Class 340/941)
  • Patent number: 10101460
    Abstract: A pet-locating device adapted for embedding under the skin of an animal that includes: a micro global positioning transmitter; a rechargeable battery, where the rechargeable battery supplies power to the global positioning transmitter; a voltage regulator, where the voltage regulator controls the power supply to the global positioning transmitter; and a power generator, where the power generator charges the rechargeable battery. The power generator uses mechanical motion as the mechanism to generate power.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: October 16, 2018
    Inventor: Kevin Macz
  • Patent number: 10089878
    Abstract: Methods and systems are described for providing improved detection of a motor vehicle traveling against a designated direction of travel in a roadway. Multiple signals among various system constituents are checked against each other to ensure the lack of a false wrong way indication otherwise possible by use of a single detector. An alert is provided to the wrong way motor vehicle operator and other vehicle operators in the vicinity of detection. A long-range or cellular communication may be broadcast to further provide an alert of a wrong way event and to dispatch emergency personnel to the vicinity.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: October 2, 2018
    Assignee: MDR Manufacturing Corporation
    Inventors: Kenneth R Cummings, II, John Lloyd Ragan, Chris Beaty
  • Patent number: 10069696
    Abstract: The present application discloses a data acquisition method and apparatus for a driverless vehicle. A specific implementation of the method comprises: selecting a sensor having the highest importance level among at least one sensor of the driverless vehicle as a first sensor and at least one sensor other than the first sensor to forma second sensor set; acquiring a start time of a current time window, and executing the following data processing steps: executing real-time acquiring and storing operations on data packets collected by each sensor among the at least one sensor after the start time of the current time window; determining whether any condition in the following condition group is met; and in response to determining that any condition in the condition group is met, setting the start time of the current time window to the current time, and continuing executing the data processing steps.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: September 4, 2018
    Assignee: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Yibing Liang, Bocong Liu, Zhuo Chen, Wei He, Chengliang Deng, Kaiwen Feng
  • Patent number: 9370041
    Abstract: A system for communicating information facilitates wireless communication between electronic devices. The system includes a transceiver provided in a vehicle. The transceiver communicates with an electronic device located external to the transceiver using a Bluetooth communications standard.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: June 14, 2016
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Todd R. Witkowski, Kurt A. Dykema, Steven L. Geerlings, Mark L. Zeinstra
  • Patent number: 9177469
    Abstract: Method and apparatus receiving reports from at least two wireless vehicular sensor nodes and stepping through a process of comparing filtered queues to determine the first and the second waveform in time, leading to counting the vehicles passing the magnetic sensors of the wireless vehicular sensor nodes.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: November 3, 2015
    Assignee: Sensys Netoworks, Inc.
    Inventor: Karric Kwong
  • Patent number: 9026283
    Abstract: Occupancy of a railroad track detection zone by one or more trains is determined using sensor devices located at gateways into and out of the track detection zone. Each sensor device has a sensing range that includes a portion of the railroad track in the detection zone and the sensor device generates data used to uniquely identify each train passing through a gateway and thus the sensing range of one or more sensor devices. Data from the detection zone's sensor device array is collected and evaluated to monitor or track the status of any detected trains and the occupancy of the zone. In some embodiments, the sensor devices utilize anisotropic magnetoresistive sensor elements whose analog waveform data is the basis of magnetic flux peak detection and mapping to generate unique train identification signature data that is transmitted to and evaluated by a detection zone processor, which in some cases can control crossing signals and/or other control apparatus related to the railroad track detection zone.
    Type: Grant
    Filed: May 30, 2011
    Date of Patent: May 5, 2015
    Assignee: Central Signal, LLC
    Inventors: David E. Baldwin, Ahtasham Ashraf
  • Patent number: 9024789
    Abstract: A method for determining the sequence of vehicle tagged with and without an RFID, comprises: f1. carrying out multiple receiving and transmitting communications with an RFID tag in a read-write region by using an RFID reader-writer, recording success and failure operations; f2. setting a time window, moving the time window from left to right on a time axis, adding the success times of the receiving and transmitting communications to obtain a curve a; f3. detecting vehicles in the read-write region by using a ground induction coil to obtain a curve b; f4: when detecting a square wave in the curve b, indicating there is at least one vehicle driving through the coil, judging whether the driven through vehicle is installed with an RFID tag according to the wave time relationship between the curves a and b, judging whether there is a vehicle without an RFID tag among the vehicles with RFID tags driving through.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: May 5, 2015
    Assignee: Digican (Shanghai) Corp., Ltd.
    Inventor: Jeffrey C Zhu
  • Patent number: 9013327
    Abstract: The invention includes a vehicular sensor node, circuit apparatus and their operations. Power from power source is controlled for delivery to radio transceiver and magnetic sensor, based upon a task trigger and task identifier. The radio transceiver and the magnetic sensor are operated based upon the task identifier, when the task trigger is active. The power source, radio transceiver, magnetic sensor, and circuit apparatus are enclosed in vehicular sensor node, placed upon pavement and operating for at least five years without replacing the power source components. Magnetic sensor preferably uses the magnetic resistive effect to create magnetic sensor state. Radio transceiver preferably implements version of a wireless communications protocol. The circuit apparatus may further include light emitting structure to visibly communicate during installation and/or testing, and second light emitting structure used to visibly communicate with vehicle operators.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: April 21, 2015
    Inventor: Robert Kavaler
  • Patent number: 8937560
    Abstract: A system of communicating vehicle detection is provided. The system may include a probe having at least a probe controller and a magnetic sensor for detecting the Earth's magnetic fields, and a control system having a main controller, an output port and a two-wire interface for communicating with the probe. The probe controller may be configured to quantify detected magnetic fields into a sensor output value per iteration at a predefined frequency, and initiate an interrupt per iteration the sensor output value is determined to exceed a predefined sensor value. The main controller of the control system may be configured to communicate a supply signal to the probe over a first line of the two-wire interface, monitor a return signal from the probe over a second line of the two-wire interface for interrupts, and generate a call signal on the output port indicative of confirmed vehicle detection if the number of consecutive interrupts in the return signal exceed a predefined interrupt limit.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: January 20, 2015
    Assignee: Diablo Controls, Inc.
    Inventor: Thomas W. Seabury
  • Patent number: 8836539
    Abstract: Provided are a loop type automobile sensing device formed integrally with a small loop coil, which has the automobile sensing sensitivity of a related art loop type automobile sensing device using a large loop coil, so as to greatly facilitate installing and maintaining of the loop type automobile sensing device and to expand the application scope of the loop type automobile sensing device, and a parking information system using the loop type automobile sensing device. In addition, the loop type automobile sensing device integrally formed with the loop coil is provided in plurality as automobile sensors to detect the presence and moving state of an automobile according to a signal from the automobile sensors, to control operations of a plurality of cameras, warning lamps, and display devices installed to a parking lot, and to notify parking information and automobile movement information.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: September 16, 2014
    Assignee: Moru Inven Co., Ltd.
    Inventor: Jeong Jun Lee
  • Publication number: 20140253347
    Abstract: In an example embodiment, a Vehicle sensor senses the arrival and departure of vehicles in a drive-through lane. In particular embodiments, the system can calculate and store time data corresponding to each vehicle. Time data can be processed to determine the duration of transaction activity in the drive-through lane.
    Type: Application
    Filed: May 6, 2014
    Publication date: September 11, 2014
    Inventors: Neil GROMLEY, Dustin CAIRNS, Mike LAWVER, Rodney J. REESE, B. Scott HARROFF
  • Patent number: 8830089
    Abstract: The invention includes using multiple wireless vehicular sensor nodes to wirelessly receive multiple, time-interleaved vehicular waveform reports from the nodes. Each vehicular waveform report approximates a raw vehicular sensor waveform observed by a magnetic sensor at the node based upon the presence of a vehicle. The vehicular waveform reports are products of this wirelessly receiving process. The invention includes apparatus supporting the above outlined process. The vehicular waveform reports may be time synchronized.
    Type: Grant
    Filed: July 14, 2013
    Date of Patent: September 9, 2014
    Assignee: Sensys Networks, Inc.
    Inventor: Robert Kavaler
  • Patent number: 8823553
    Abstract: The invention concerns a traffic detector (200) comprising: a hermetically closed tube (202); the said tube (202) delimiting at least one chamber (218), each chamber (218) extending from one of the ends of the said tube (202), for each chamber (218), a piezoelectric sensor placed at the corresponding end of the tube (202) and suitable for transforming the shock waves received into an electrical signal; the traffic detector (200) being characterised in that it comprises an elastic band (204) and fixing devices (208, 210) intended to keep the said elastic band (204) tensioned between the ends of the said tube (202).
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: September 2, 2014
    Assignee: Eco Compteur
    Inventors: Christophe Milon, Jean-Claude Dubois
  • Patent number: 8803708
    Abstract: A method and apparatus for continuous, non-intermittent, detection of vehicles based on a light detector for detecting a change in illumination when a vehicle arrives or departs, and on a use of the light detection to activate a magnetic sensor, a sensitivity of which is adjusted to detect only those magnetic disturbances sufficiently large to be able to be attributed to a vehicle which is over the sensor. Both the light detector and the magnetic sensor are connected directly to a digital controller without a need for active electronic components or their own or a shared power supply source. The light detector may be fixed or portable, wireless or connected by cables, and may operate independently or as part of a sensor network.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: August 12, 2014
    Assignee: Universitat Politecnica de Catalunya
    Inventors: Ramon Pallàs Areny, Jaime Oscar Casas Piedrafita, Ernesto Sifuentes De La Hoya
  • Patent number: 8797188
    Abstract: The present invention relates to a low power operated loop type vehicle detecting apparatus, and particularly, to a low power operated loop type vehicle detecting apparatus that comprises an LC resonator with a loop coil installed in a detecting area, a resonance oscillation circuit unit, and a vehicle behavior determination unit. The vehicle detecting apparatus further comprises: a behavior determination clock generator for generating a behavior determination clock; a count controller for setting clock count time in a steady-state period; a behavior determination clock counter for counting the behavior determination clock during the clock count time set by the count controller; and a vehicle behavioral state determiner for determining a vehicle behavioral state in a detecting area, based on the counting value of the behavior determination clock counter. Power consumption can thereby be reduced.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: August 5, 2014
    Assignee: Moru Inven Co., Ltd.
    Inventor: Jeong Jun Lee
  • Patent number: 8779942
    Abstract: A vehicle detector detects bicycles and discriminates between a bicycle and a motorized vehicle using a specific signature analysis technique when operated in the bicycle detect mode and the bicycle only detect mode. The signature analysis technique employs two sets of rules: one set for a bicycle which produces a signature having at least two peaks and two valleys when passing over a loop connected to the vehicle detector; the other for a bicycle which produces a signature having two peaks and only one valley when passing over a marginal side region of a loop connected to the vehicle detector. Peak and valley searches are conducted sequentially, with a peak search being conducted first upon start-up.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: July 15, 2014
    Assignee: Reno A & E
    Inventors: Thomas Ray Potter, Jason Zhen-Yu Lu
  • Patent number: 8773287
    Abstract: A vehicle detector (10) comprises a vehicle sensor (14) arranged for sensing disturbances caused by a vehicle, a digitizer of a microprocessor (20) connected to the vehicle sensor (14). The vehicle detector (10) further comprises a memory (18) connected to the digitizer and arranged for storing the digital representation, an antenna (12) and a transmitter of a radio unit (40). The microprocessor (20) also comprises a controller arranged for controlling operation of the vehicle sensor (14), and the transmitter. The vehicle detector has a housing (49) enclosing the vehicle sensor (14), the digitizer, the memory, the transmitter and the controller. The housing (49) provides protection against mechanical damage and moisture, thereby enabling the housing to be placed under ground. The antenna (12) is provided outside the housing (49) and at a distance from the housing (49) for enabling placement of the antenna (12) within a roadway surface coating.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: July 8, 2014
    Assignee: Sensebit AB
    Inventors: Fredrik Zettergren, Patrik Söderberg, Karl Nilvér, David Kulander
  • Patent number: 8711006
    Abstract: The vehicle detection apparatus includes a communication unit, a magnetic sensing unit, a calibration information generation unit, a vehicle detection unit, and a control unit. The communication unit receives information about movement of a reference vehicle from a central management center. The magnetic sensing unit senses the change in a magnetic field attributable to the movement of a vehicle, and generates a magnetic signal. The calibration information generation unit generates calibration information. The vehicle detection unit calibrates the change in the magnetic signal attributable to movement of an actual vehicle based on the calibration information, and detects the movement of the actual vehicle. The control unit controls the above units, and sets the mode to calibration information generation mode in order to generate the calibration information and to vehicle detection mode in order to sense the movement of the actual vehicle.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: April 29, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jae-Jun Yoo, Do-Hyun Kim, Jong-Hyun Park, Kyong-Ho Kim, Jong-Woo Choi
  • Publication number: 20140028475
    Abstract: A traffic information detection system and method. According to the traffic information detection method of the present invention, at least one loop coil on a road transmits a signal indicative of electric change induced in the loop coil by a vehicle, at least one loop detection device installed at the garden or escape zone of the road receives the signal transmitted from the loop coil and wirelessly transmits a signal indicative of whether or not a vehicle exists on a road, the velocity of and type of the vehicle, and a traffic signal controller wirelessly receives the signal transmitted from the loop detection device, thereby acquiring traffic information.
    Type: Application
    Filed: January 23, 2013
    Publication date: January 30, 2014
    Inventor: Jeong Jun LEE
  • Patent number: 8587455
    Abstract: An RFID system for determining the location of a vehicle or mobile object that passes thereover is presented. The system comprises a tag arrangement having at least one tag where the arrangement having a width of between approximately 0.5 m and 2 m.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: November 19, 2013
    Assignee: Psion, Inc.
    Inventors: Philippe Porte, Pierre Bonnefoy
  • Publication number: 20130300585
    Abstract: A method for determining the sequence of vehicle tagged with and without an RFID, comprises: f1. carrying out multiple receiving and transmitting communications with an RFID tag in a read-write region by using an RFID reader-writer, recording success and failure operations; f2. setting a time window, moving the time window from left to right on a time axis, adding the success times of the receiving and transmitting communications to obtain a curve a; f3. detecting vehicles in the read-write region by using a ground induction coil to obtain a curve b; f4: when detecting a square wave in the curve b, indicating there is at least one vehicle driving through the coil, judging whether the driven through vehicle is installed with an RFID tag according to the wave time relationship between the curves a and b, judging whether there is a vehicle without an RFID tag among the vehicles with RFID tags driving through.
    Type: Application
    Filed: December 14, 2011
    Publication date: November 14, 2013
    Inventor: Jeffrey C. Zhu
  • Patent number: 8487784
    Abstract: The application discloses using multiple wireless vehicular sensor nodes to wirelessly receive multiple, time-interleaved vehicular waveform reports from the nodes. Each vehicular waveform report approximates a raw vehicular sensor waveform observed by a magnetic sensor at the node based upon the presence of a vehicle. The vehicular waveform reports are products of this wirelessly receiving process. The application discloses apparatus supporting the above outlined process. The vehicular waveform reports may be time synchronized.
    Type: Grant
    Filed: October 10, 2011
    Date of Patent: July 16, 2013
    Assignee: Sensys Networks, Inc.
    Inventor: Robert Kavaler
  • Patent number: 8466804
    Abstract: A system to identify junctions of restricted areas to approaching vehicles, including at least one warning signal generator adapted to transmit the warning signal into areas traversed by the vehicles approaching the restricted areas, a receiver in each of the vehicles receiving the transmitted warning signals when the vehicle approaches one of the restricted areas, and an alarm responsive to the warning signal, which produces an alarm signal detectable by a vehicle operator.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: June 18, 2013
    Inventor: George Vickas
  • Publication number: 20130063282
    Abstract: Power efficient, modular sensor devices utilize magnetic sensor elements, wireless data communication and sensor device level processing to detect, evaluate and classify roadway vehicles. Sensor devices are configured in a network enabling data sharing between sensor devices. Earth generated magnetic fields are monitored within the range of each sensor device with reliability and stability over a wide range of environmental conditions and sensor device placements to detect field distortions specifically caused by a variety of roadway vehicles. Multiple sensor devices configured as a network, communicating with other sensor devices and one or more substations, collect, generate, share and evaluate data to determine multiple attributes of roadway vehicle events. Analog field distortion (waveform) measurements are converted to digital format and analysis on the detected waveform to classify the waveform event as a roadway vehicle of particular type and to determine a unique signature for the waveform event.
    Type: Application
    Filed: May 30, 2011
    Publication date: March 14, 2013
    Applicant: CENTRAL SIGNAL, LLC
    Inventors: David E. Baldwin, Ahtasham Ashraf
  • Patent number: 8390477
    Abstract: Disclosed is an inventory control system or parking space detector including an inductive loop technology that is either embedded in the concrete or located atop the concrete, or any other feasible method of setting an inductive loop. By monitoring the change in inductance of the magnetic field that is generated by the loop as cars of various sizes and weights enter the looped area, a determination of whether or not the inventory is controlled or the parking spaces are all full is made when the inductance value reaches a certain predetermined level. This predetermined level will be determined by calibration in the initial installation in order to determine the exact inductance values when a group of parking spaces are full.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: March 5, 2013
    Inventor: Phares A. Noel, II
  • Patent number: 8390478
    Abstract: The present invention providing a system and installation method of wireless vehicle detection based on earth magnetic induction a signal collection module, a signal conditioning module, a MCU control module, a wireless communication module, a battery module and a signal receiver module includes.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: March 5, 2013
    Assignee: Shanghai Super Electronics Technology Co. Ltd
    Inventors: Zhong Qin, Keyi Wang, Shengyang Wang, Rushan Pan
  • Patent number: 8374573
    Abstract: An automatic vehicle identification (AVI) system signal processing technique which provides improved performance and reliability and which substantially eliminates the adverse effect of ambient noise signals on the detection of permissible code sequences by an AVI receiver. Input signals to an AVI receiver are filtered to strip off all frequency components except those at the carrier frequency. The filtered signals are subjected to variable gain amplification over a substantially linear operating range with the maximum amplitude of the amplified signals limited to a maximum value below the supply voltage and within the linear range of the variable gain amplifier. The amplified signals are converted to a binary pulse train signifying the temporal length of each active carrier period and the temporal length of each quiescent carrier period. The binary pulse train is decoded and a valid vehicle signal is generated if the decoded binary pulse train matches a permissible code sequence.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: February 12, 2013
    Assignee: Reno A & E
    Inventor: Thomas R. Potter, Sr.
  • Patent number: 8328143
    Abstract: A method and system for reducing, in a centralized train control system, the portion of a centralized server application that is considered vital while not reducing the overall vitality of the system.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: December 11, 2012
    Assignee: Lockheed Martin Corporation
    Inventors: Robert B. Groves, Jr., Richard A. Allshouse
  • Patent number: 8331621
    Abstract: A toll violation enforcement system that contains a capture unit that receives a trigger signal and takes vehicle images of passing vehicles. A lighting unit configured to operate continuously is provided to establish a major lighting source incident on the vehicle. A processing unit is provided that processes the vehicle image and controls the settings employed by the capture unit. The processing unit preferably contains a plate location module for extracting an original resolution license plate area image from a first vehicle image; an exposure control module for controlling the exposure setting on the capture unit to provide consistent intensity of the license plate area; a resolution reset module for changing the image resolution for a second vehicle image; an image enhancement module for brightening pixels of the second vehicle image; and an image compression module for compressing the license plate area image and second vehicle image to a predetermined format.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: December 11, 2012
    Assignee: United Toll Systems, Inc.
    Inventors: Jim Allen, Sheng Zhong, Raghavan Venugopal, Balaraju Banna, Xidong Zheng
  • Patent number: 8319664
    Abstract: A vehicular sensor node, circuit apparatus and their operations. Power from power source is controlled for delivery to radio transceiver and magnetic sensor, based upon a task trigger and task identifier. The radio transceiver and the magnetic sensor are operated based upon the task identifier, when the task trigger is active. The power source, radio transceiver, magnetic sensor, and circuit apparatus are enclosed in vehicular sensor node, placed upon pavement and operating for at least five years without replacing the power source components. Magnetic sensor preferably uses the magnetic resistive effect to create magnetic sensor state. Radio transceiver preferably implements version of a wireless communications protocol. The circuit apparatus may further include light emitting structure to visibly communicate during installation and/or testing, and second light emitting structure used to visibly communicate with vehicle operators. Making filled shell and vehicular sensor node from circuit apparatus.
    Type: Grant
    Filed: June 14, 2008
    Date of Patent: November 27, 2012
    Assignee: Sensys Networks, Inc.
    Inventor: Robert Kavaler
  • Publication number: 20120274483
    Abstract: A method and apparatus for continuous, non-intermittent, detection of vehicles based on a light detector for detecting a change in illumination when a vehicle arrives or departs, and on a use of the light detection to activate a magnetic sensor, a sensitivity of which is adjusted to detect only those magnetic disturbances sufficiently large to be able to be attributed to a vehicle which is over the sensor. Both the light detector and the magnetic sensor are connected directly to a digital controller without a need for active electronic components or their own or a shared power supply source. The light detector may be fixed or portable, wireless or connected by cables, and may operate independently or as part of a sensor network.
    Type: Application
    Filed: August 31, 2010
    Publication date: November 1, 2012
    Inventors: Ramon Pallàs Areny, Jaime Oscar Casas Piedrafita, Ernesto Sifuentes De La Hoya
  • Publication number: 20120200432
    Abstract: The present invention relates to a low power operated loop type, vehicle detecting apparatus, and particularly, to a low power operated loop type vehicle detecting apparatus that comprises an LC resonator with a loop coil installed in a detecting area, a resonance oscillation circuit unit, and a vehicle behavior determination unit. The vehicle detecting apparatus further comprises: a behavior determination clock generator for generating a behavior determination clock; a count controller for setting clock count time in a steady-state period; a behavior determination clock counter for counting the behavior determination clock during the clock count time set by the cont controller; and a vehicle behavioral state determiner for determining a vehicle behavioral state in a detecting area, based on the counting of the behavior determination clock counter. Power consumption can thereby be reduced.
    Type: Application
    Filed: January 26, 2010
    Publication date: August 9, 2012
    Applicant: MORU INVEN CO., LTD.
    Inventor: Jeong Jun Lee
  • Patent number: 8212690
    Abstract: A passive activator, used in combination with a vehicle sensing arrangement in a roadway, includes an electrically conductive material such as a wire mesh and placed inside or within a vehicle tire. The electrically conductive material portion forms a closed loop. The electrically conductive material portion may also include a protective layer or liner to prevent damage to the tire or to an inner tube of the tire. The passive activator causes sufficient disturbance of the electro-magnetic field to activate a vehicle detection sensor located in a roadway when a tire equipped with the passive activator passes over the roadway induction loop.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: July 3, 2012
    Inventor: Edwin Partin
  • Patent number: 8179282
    Abstract: A method, system and computer program product are provided for automating the task of data collection and reduction for highway vehicle detector testing. To evaluate the performance of each detector under test, a set of detection data is accumulated concurrently from each of the detectors. This data consists, at a minimum, of the time of arrival of each vehicle as reported by each detector and a digitized video image of the vehicle at the position-compensated time of detection. The data reduction process allows for applying weighting coefficients to each detection result in the formation of a consensus. These coefficients may be either fixed or adaptively adjusted based upon the learned accuracy of each detector under test. A ground truth reference data set is then generated using the weighted consensus determined from the data generated by all detectors under test.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: May 15, 2012
    Assignee: Cal Poly Corporation
    Inventor: Carl Arthur MacCarley
  • Patent number: 8144034
    Abstract: This application discloses using multiple wireless vehicular sensor nodes to wirelessly receive multiple, time-synchronized vehicular waveform reports from the nodes to create a time synchronized system report, and preferably a time synchronized vehicular report. Each vehicular waveform report approximates a raw vehicular sensor waveform observed by a magnetic sensor at the node based upon the presence of a vehicle. The vehicular waveform reports, the time-synchronized system report, and the time synchronized vehicular report are products of this wirelessly receiving process. Also disclosed are apparatus supporting the above outlined process. Reception of the vehicular waveform reports may be time interleaved.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: March 27, 2012
    Assignee: Sensys Networks
    Inventor: Robert Kavaler
  • Publication number: 20120026013
    Abstract: Sensor nodes are disclosed that act like inductive loops to detect the presence and/or movement of vehicles on at least one roadway. Processors are disclosed using at least one sensor node to communicate vehicle detection that is statistically compatible with the inductive loop response to the vehicles. Installation may configure at least one of the sensor nodes to implement the inductive loop compatibility. Sensor clusters of sensor nodes installed in a roadway may act as inductive loops. Computer readable memories, installation devices and/or servers may deliver a program system and/or a Finite State Machine (FSM) configuration to implement the compatibility and/or an installation package to install the program system and/or the FSM configuration.
    Type: Application
    Filed: November 17, 2010
    Publication date: February 2, 2012
    Inventors: Brian Anthony Fuller, Michael T. Volling, Kenneth Brian Cox
  • Patent number: 8035530
    Abstract: A system and method for regulating the flow of traffic at a roadway intersection having one or more traffic signals by positioning a processor in the vicinity of the intersection to store cycle times of the traffic flow directions, mounting an RFID reader in the vicinity of each traffic signal in communication with the processor, interrogating with the RFID reader an RFID tag on each RFID-tagged vehicle at the roadway intersection to count the number of RFID-tagged vehicles present in each traffic flow direction at the roadway intersection, calculating an unused time slice of the cycle time for a first traffic flow direction at the intersection; reducing the cycle time for the first traffic flow direction in accordance with the unused time slice; and, increasing the cycle time for a second traffic flow direction at the intersection in accordance with the unused time slice.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: October 11, 2011
    Inventor: Sridhara Subbiah Ramasubbu
  • Patent number: 8035533
    Abstract: This document discloses using multiple wireless vehicular sensor nodes to wirelessly receive multiple, time-interleaved vehicular waveform reports from the nodes. Each vehicular waveform report approximates a raw vehicular sensor waveform observed by a magnetic sensor at the node based upon the presence of a vehicle. The vehicular waveform reports are products of this wirelessly receiving process. The document also discloses apparatus supporting the above outlined process. The vehicular waveform reports may be time synchronized.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: October 11, 2011
    Assignee: Sensys Networks Inc.
    Inventor: Robert Kavaler
  • Patent number: 8011694
    Abstract: A steering member unit includes a metal steering member body disposed to extend substantially in a vehicle width direction; metal side brackets that are fixed respectively to both ends of the steering member body and are attachable respectively to vehicle body side parts; and a metal stay that is fixed to an intermediate part of the steering member body and is attachable to a vehicle body floor. In an intermediate part of the steering member body, multiple ground current connecting members connectable to a vehicle body metal part are provided at intervals in a longitudinal direction (vehicle width direction) of the steering member body. Thereby, a resonance frequency of a wavelength depending on the distance of a magnetic field generated by a current flowing into the steering member body can be changed and adjusted.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: September 6, 2011
    Assignee: Calsonic Kansei Corporation
    Inventors: Hitoshi Suzuki, Fumihiro Okazaki, Takeshi Anzai, Kazuhiko Horikoshi
  • Publication number: 20110193723
    Abstract: The present invention providing a system and installation method of wireless vehicle detection based on earth magnetic induction a signal collection module, a signal conditioning module, a MCU control module, a wireless communication module, a battery module and a signal receiver module includes.
    Type: Application
    Filed: March 25, 2010
    Publication date: August 11, 2011
    Inventors: Zhong QIN, Keyi Wang, Shengyang Wang, Rushan Pan
  • Patent number: 7978097
    Abstract: A method, medium and implementing processing system are provided in which the presence of workers in a long highway construction zone is monitored and the electronically-controlled posted speed limit is adjusted in accordance with the detected presence of workers in the immediate area. In an example, Radio Frequency Identification (RFID) scanners or readers are strategically placed in a construction or working area. Such RFID reading devices may be embedded, for example, in construction speed limit signs. The displayed speed limit is controlled by the detected proximity of construction workers wearing RFID-embedded clothing, for example, such as safety vests or helmets. The speed limit sign includes logic to display one of many possible speed limit displays based on the nearest, and/or the number of RFID signals detected in a given area.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: July 12, 2011
    Assignee: International Business Machines Corporation
    Inventors: Robert Thomas Arenburg, Franck Barillaud, Bradford Lee Cobb, Shivnath Dutta
  • Patent number: 7973675
    Abstract: A system includes a plurality of sensors that provide information regarding instantaneous traffic conditions incident to an intersection. An inference engine of the system receives the sensor information and processes user-defined traffic control algorithms and weighted management parameters. Control signals are derived in accordance with the processing. Multi-state signaling devices are driven in accordance with the control signals so as to manage vehicular and pedestrian traffic flow at the intersection. Playback of historic traffic information permits analysis and verification of the traffic management strategies implemented by the system.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: July 5, 2011
    Assignee: The Boeing Company
    Inventor: John W. Glatfelter
  • Patent number: 7925440
    Abstract: A system and method for accurate express tolling of highway vehicles. A multilane tolling system comprises a tolling (MVIC) unit that collects information from tolling subsystems arranged to take various vehicle measurements. Preferably, an intelligent vehicle identification subsystem sends vehicle information to the MVIC unit many times per second. Preferably, a vision tracking system (VTS) communicates with the MVIC unit and sends the latter information about the vehicle position using vision tracking sensors. Preferably, an RF subsystem conducts multiple reads of a transponder on a passing vehicle and forwards the read information to the MVIC unit. Preferably, a vehicle image capture unit (VICU) captures images of the passing vehicle when a camera in the VICU receives a trigger from the MVIC unit. Preferably, a driver alert module is used alert a driver passing through a tolling point as to account balance associated with a silent toll tag or pay by plate system.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: April 12, 2011
    Assignee: United Toll Systems, Inc.
    Inventors: Jim Allen, Sheng Zhong, Raghavan Venugopal, Tiegang Xie, Fajie Sun, Sangmesh Reddy, Brijesh Rai Chawla, Balaraju Banna, Shyamnath Harinath
  • Publication number: 20110074605
    Abstract: Provided are a loop type automobile sensing device formed integrally with a small loop coil, which has the automobile sensing sensitivity of a related art loop type automobile sensing device using a large loop coil, so as to greatly facilitate installing and maintaining of the loop type automobile sensing device and to expand the application scope of the loop type automobile sensing device, and a parking information system using the loop type automobile sensing device. In addition, the loop type automobile sensing device integrally formed with the loop coil is provided in plurality as automobile sensors to detect the presence and moving state of an automobile according to a signal from the automobile sensors, to control operations of a plurality of cameras, warning lamps, and display devices installed to a parking lot, and to notify parking information and automobile movement information.
    Type: Application
    Filed: July 17, 2008
    Publication date: March 31, 2011
    Applicant: MORU INVEN CO., LTD.
    Inventor: Jeong Jun Lee
  • Patent number: 7907065
    Abstract: A system and method for activating vehicle sensors which are based on inductive loops. A transformer is used to couple the vehicle frame to activation circuitry. Within the activation circuitry, a voltage controlled oscillator which drives the transformer is scanned throughout the required frequency range while a balanced mixer, low-pass filter, and detector are arranged to show the presence of a signal from an inductive loop by the amplitude of the resultant signal at a difference frequency. The voltage controlled oscillator is then made to dwell at or near the frequency of the sensor loop by adjusting so as to keep the amplitude of that low-frequency difference as high as possible.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: March 15, 2011
    Inventor: Edward Anthony Richley
  • Patent number: 7880643
    Abstract: A method for tracking objects, especially for monitoring traffic, wherein a sensor measuring in an essentially horizontal and radial manner detects metrical data on moving objects in the form of raw data and transmits said data to a computer unit. The raw data is processed in the computer in such a way that the objects are tracked and the geometric properties thereof are determined. The static background is autonomously recognized and adapted or updated if changes occur. Objects in a present scene are tracked and current parameters are determined and correlated with the parameters of the objects of previous scenes. The method is particularly suitable for the detection and recognition of non-static traffic infractions which can only be recognized by analyzing the tracking of an object. The invention can be used in conjunction with several sensors in existing traffic control systems. Also disclosed is a device for carrying out the above-mentioned method.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: February 1, 2011
    Assignee: Logobject AG
    Inventors: Roberto Brega, Felix H. Wullschleger
  • Patent number: 7853402
    Abstract: A method and a system for monitoring the location of a mining vehicle in a mine. The first mine section (18) is provided with a wireless network (10) for data transmission between the mining vehicle (1, 1a, 1b) and the mine control system (11). In addition, the network is used for positioning. In the second mine section (21), the location is determined by means of measuring devices provided in the mining vehicle.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: December 14, 2010
    Assignee: Sandvik Mining and Construction OY
    Inventors: Hannu Mäkelä, Riku Pulli, Timo Soikkeli
  • Patent number: 7764197
    Abstract: A method and system for synchronization of detection loops in a multilane environment. A plurality of loop sensors are arranged in a plurality of lanes such that loop sensors in adjacent lanes are mutually contiguous. A simultaneous synchronization signal is sent to each of the plurality of loop detector controllers, where each loop detector controller is in communication with a loop sensor. The signal causes a scheduling of sampling periods for each loop sensor, such that the sampling period of each loop sensor does not overlap with that of a contiguous loop in an adjacent lane.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: July 27, 2010
    Assignee: United Toll Systems, Inc.
    Inventors: Jim Allen, Balaraju Banna, Malcolm Talley, David C. Allen, Sr., Allen Jacobs
  • Patent number: 7765056
    Abstract: A system for measuring a magnetic signature of a vehicle, including: at least a first set of sensors (Cxi) that are stationary and arranged along at least a first direction; at least a second set of sensors (Cyj) that are stationary and arranged along at least a second direction that intersects the first direction; a common sensor (Cxy0) arranged at a location where the first set of sensors and the second set of sensors intersect, said common sensor belonging to the first and the second sets of sensors, wherein the first set of sensors and the second set of sensors are arranged so that the vehicle passes above at least part of the sensors of the first and second set of sensors; and a calculation device for calculating a relation between a time signature So(t) of the vehicle passing above the common sensor and a spatial profile So(x) resulting from measurements made by the first set of sensors.
    Type: Grant
    Filed: January 4, 2007
    Date of Patent: July 27, 2010
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Viviane Cattin, Roland Blanpain, Bruno Flament, Bernard Guilhamat
  • Patent number: 7739000
    Abstract: At least one waveform characteristic of a vehicular sensor waveform is reported in a wireless vehicular sensor network. The vehicular sensor waveform results a vehicle's presence near a wireless vehicular sensor node. The waveform characteristic may be rising edge, falling edge, waveform duration and/or waveform midpoint of vehicular sensor waveform. Report transmission uses at least one wireless physical transport. Transmitting the report may initiate a response across the wireless physical transport, preferably from an access point, an acknowledgement of receiving the report. The transmitted report may be received by an access point in the wireless vehicular sensor network. The wireless vehicular sensor network may create any of a vehicular traffic report, a vehicular parking report, and/or a vehicular speeding report, based upon the received vehicular sensor waveform report.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: June 15, 2010
    Assignee: Sensys Networks, Inc
    Inventor: Robert Kevaler