Abstract: Smoke detection sample points and systems are described herein. One smoke detection sample point includes a body having a chamber formed within the body, a first air flow conduit formed within the body having two ends and the ends being open, to allow air to pass through the first air flow conduit between an area to be sampled and the chamber, and a second air flow conduit formed within the body having two ends with one end being open and having an air seal, to prevent air from passing through the second air flow conduit between the area to be sampled and the chamber.

Abstract: A pathogen detection system includes pathogen detectors disposed in different locations, and a controller. The pathogen detectors include a first pathogen detector and a second pathogen detector. The first pathogen detector transmits a first detection result obtained as a result of pathogen detection to the controller, and the second pathogen detector transmits a second detection result obtained as a result of pathogen detection to the controller. In a case where the first detection result satisfies a predetermined condition, the controller causes the second pathogen detector to change a mode related to the pathogen detection from a first mode to a second mode.

Abstract: A sounder device is mountable on a wall or ceiling and is connected to a power source. The sounder also includes a mounting interface that is configured to receive a detector. The mounting interface portion is a low-profile section, and the sounder device includes a housing portion to the side of the mounting interface in which most of the electronics and other components are housed. When the detector is triggered to alarm, which results in a tone at 3250 Hz being emitted, the alarm state is detected by the sounder device and the sounder device emits a tone at 520 Hz to ensure people who may not be able to hear the tone at 3250 Hz hear an alarm tone.

Abstract: A method for selectively transmitting audio signals in a fire alarm system includes receiving, by a Notification Appliance Circuit (NAC) selecting device, an audio signal for transmission over a first NAC or a second NAC. Each of the first NAC and the second NAC includes respective groupings of one or more NAC appliances. The NAC selecting device receives a selection signal from a Fire Alarm Control Panel (FACP) electronically connected to the NAC selecting device. The selection signal identifies one or more NAC appliances that should be moved from a first grouping corresponding to the first NAC to a second grouping corresponding to the second NAC. The NAC selecting device selectively transmits the audio signal to one of the first NAC and the second NAC based on the selection signal.

Abstract: In some embodiments, a method is provided. The method includes identifying an incident situation based upon a sensor detecting an abnormal condition. One or more life safety systems are queried to obtain life safety system data. One or more databases, comprising equipment information, chemical information, personnel information, and/or emergency response contingency procedures, are queried to obtain on-site information. The life safety system data and the on-site information are integrated together to generate incident situation information. The incident situation information is displayed through an electronic display.

Abstract: A management system makes decisions using local and national outdoor air quality data, public health data, and building and occupant information. The system addresses the balance between healthy air and energy efficiency.

Abstract: A fire and/or overheated condition detector for a lithium ion battery is provided. The fire and/or overheated condition detector includes a chamber defining a detection space fluidly communicative with an interior of the lithium ion battery, a temperature sensor operably disposed proximate to the detection space, gas detection assemblies configured to detect gases through absorption in the detection space and a smoke detection assembly configured to detect particle scattering in the detection space to discriminate smoke particles from nuisance particles.

Abstract: A true wireless multichannel-speakers device and a multiple sound-source voicing method thereof are disclosed. The true wireless multichannel-speakers device includes a first and a second sounder. The first and the second sounders respectively include a first and a second sound effect generators, a first and a second sound effect value providers, and a first and a second speakers. The first sound effect value provider provides a first sound effect control value set to the first sound effect generator to generate a first sound effect output signal so that the first speaker outputs the first sound effect output signal. The second sound effect value provider provides a second sound effect control value set to the second sound effect generator to generate a second sound effect output signal so that the second speaker outputs the second sound effect output signal.

Abstract: Smoke detection sample points and systems are described herein. One smoke detection sample point includes a body having a chamber formed within the body, a first air flow conduit formed within the body having two ends and the ends being open, to allow air to pass through the first air flow conduit between an area to be sampled and the chamber, and a second air flow conduit formed within the body having two ends with one end being open and having an air seal, to prevent air from passing through the second air flow conduit between the area to be sampled and the chamber.

Abstract: An aspirating detection system, a heat-detection device for an aspirating detection system, and a method of determining that a temperature in a monitored environment has exceed a predetermined threshold are provided. An aspirating detection system for monitoring an environment, the system including: an aspirating detector for aspirating and detecting smoke in a sample of air; a sampling pipe or providing a sample of air to the aspirating detector, the sampling pipe at least partially exposed to the monitored environment; and a heat-detection device exposed to the monitored environment and arranged to emit an airborne substance into the sampling pipe when the temperature of the monitored environment exceeds a predetermined threshold; the aspirating detector is arranged to detect the airborne substance and thereby detect that the temperature of the monitored environment exceeds the predetermined threshold.

Abstract: Example implementations include a method, apparatus, and computer-readable medium comprising first broadcasting, by at least one primary speaker of a control panel, a first sound toward a front or a side of the control panel; and second broadcasting, concurrently with the first broadcasting, by a removable back speaker that is removably attachable to a back side of the control panel, a second sound toward the back side of the control panel. In some aspects, the removable back speaker is configured as a stand for placing the control panel on a flat surface.

Abstract: Distributed infrastructure and mobile architecture for edge computing are disclosed. For one example, an edge computing container includes a plurality of modules. Each module has plug and play connectivity, and the modules are assembled to provide information technology (IT) space to house IT devices, cooling system, energy source and storage, and power system. The modules can be pre-fabricated and assembled as a single container unit. A source distribution unit (SDU) can assembled on an IT rack and connected to the modules. The single container unit can be loaded in a vehicle or transportation system for transportation in the process of deployment. The modules in the single container unit can also be operational during transportation.

Abstract: A monitoring and gas detection information notification system includes monitoring devices and a cloud data processing device. The monitoring devices are respectively disposed at corresponding fixed positions, each of the monitoring devices includes a monitoring module and an actuator-sensor module. The monitoring module captures an image and converts the image into an image data. The actuator-sensor module is disposed in the monitoring module and includes one or more actuators for guiding a gas into the monitoring module and includes one or more sensors for generating a gas detecting data. The cloud data processing device stores and intelligently analyzes the image data and the gas detecting data to generate a processed data, and the cloud data processing device transmits the processed data to a notification processing system so as to conduct a notification of monitoring information and gas detecting information.

Abstract: Device and method are described for operational control of a knob on a stove or range. In some examples, a safety device, a sensor relay device, and method are described for automatically positioning an operational shaft of a burner to an Off position such that the power supplied to the burner is terminated upon the occurrence of a safety event.

Abstract: A fire alarm system according to an embodiment of the inventive concept includes a plurality of sensing systems, each sensing whether a fire has occurred, and a plurality of relay systems each corresponding to any one of the plurality of sensing systems, performing Radio Frequency (RF) communication with the plurality of sensing systems, and performing RF communication with each other, wherein each of the plurality of sensing systems includes a plurality of sensing units having different address information, wherein when detecting a fire, each of the plurality of sensing units transmits alarm information to a corresponding relay system among the plurality of relay systems, wherein when receiving alarm information from another adjacent sensing unit, each of the plurality of sensing units transmits the alarm information to a corresponding relay system among the plurality of relay systems, wherein each of the plurality of relay systems includes a memory in which information of parties corresponding to the addres

Abstract: A method includes determining, by a sensor node in communication with a communication network, an evacuation condition, retrieving by a decision node, occupancy information pertaining to an area, retrieving area data, and determining an evacuation route, at least in part using the evacuation condition, occupancy information, and area data, and communicating the determined evacuation route to area occupants.

Abstract: Disclosed is an alarm unit having an alarm controller, the alarm controller being operatively connected to a plurality of implements within the alarm unit having a mechanical actuator and a magnetic sensor and at least one of a visual source and an audible source, wherein the alarm unit: monitors for input to initiate one of a plurality of self-tests including: a first test, initiated by actuation of the mechanical actuator without actuation of the magnetic sensor, and a second test, initiated by actuation of the mechanical actuator with actuation of the magnetic sensor, and wherein the first test differs from the second test.

Abstract: Threat identification devices, systems, and methods are disclosed which identify and locate various threats and provide a variety of countermeasures to reduce the loss of life in an attack. In one implementation, a device is provided with a housing and a plurality of tubes coupled to and extending from the housing. Sensors are located within the tubes for sensing external conditions. A control unit is in electronic communication with the sensors. Upon detection of an external condition, the sensors transmit a signal to the control unit, which activates countermeasures, including rotating light sources to identify the location of the external condition as well as preferred escape routes. The control unit may also transmit signals to other devices in the environment, including video panels and speakers, to provide instructions.

Abstract: A method that includes obtaining a sensor reading from a sensor installed inside an underground vault and determining whether the sensor reading is indicative of an alarm state. When the sensor reading is indicative of the alarm state, the method obtains at least one new reading and determines whether the sensor reading includes sensor drift based at least in part on the at least one new reading. The alarm state is established when the sensor reading is determined not to include sensor drift. The sensor drift is removed when the sensor reading is determined to include sensor drift.

Abstract: Examples relate to a method, an apparatus and a computer program for detecting a presence of airborne particles. A reference measurement of an environment of a depth image sensor module is obtained. The reference measurement is based on a measurement of modulated light in a first time interval. The modulated light is reflected by features of the environment of the depth image sensor module. A subsequent measurement of modulated light is obtained in a second time interval. The presence of the airborne particles is detected based on the subsequent measurement of the modulated light, by using the reference measurement performed in the first time interval to disregard all or part of the features of the environment of the depth image sensor module. A signal indicative of one or more properties of the detected airborne particles is generated based on the detected presence of the airborne particles.

Abstract: A wearable distress device includes a smoke generating unit, an activation circuitry comprising a battery, a switch and a filament interconnected such that upon operation of the switch the filament is heated for igniting the smoke generating unit. The device further includes an enclosure comprising a smoke generating unit chamber configured to house the smoke generating unit and the filament, the smoke generating unit chamber having a smoke outlet wall formed by a portion of an outer wall of the enclosure, the smoke outlet wall comprises a material being heat reactive such that upon ignition of the smoke generating unit a smoke outlet is formed by burning and/or melting through the smoke outlet wall.

Abstract: The air sampling smoke detector (ASSD) system includes a sampling detector configured to detect smoke in an air flow, a pipe fluidly connected to the sampling detector. The pipe includes at least one aspiration orifice defined therein, and a variable flow restrictor covering the at least one aspiration opening and including an insert received therein. The insert has a restricted opening defined therethrough. The restricted opening provides fluid communication between the pipe and an exterior of the ASSD system. The insert being removable from the at least one aspiration orifice when the variable flow restrictor is heated above a predetermined temperature thereby providing an unrestricted opening providing fluid communication between the pipe and the exterior of the ASSD system. The unrestricted opening has a cross-sectional area greater than a cross-sectional area of the restricted opening.

Abstract: The present invention provides a fire extinguishing system capable of reliably carrying out initial fire fighting using a limited fire extinguisher even if a protected area is wide for example.

Abstract: A smoke detector alarm system configured with improvements that enable remotely positioning a smoke detector battery from a smoke detector while recharging the battery such that there is not a loss of battery power in case of a power outage and the battery replacement needs are reduced.

Abstract: A wireless speaker device configured for use with a wireless A/V recording and communication device, such as a doorbell. The wireless speaker device, which includes a speaker, may connect to the user's local area network (LAN), such as a Wi-Fi network. The LAN is connected to a wide area network (WAN), such as the Internet and/or a public switched telephone network (PSTN). When the wireless A/V recording and communication device detects a visitor, it sends a first signal, via the LAN, to device backend server in the WAN. In response, the back-end server in the WAN transmits a second signal, via the LAN, to the wireless speaker device. The second signal to the wireless speaker device includes a command for the wireless speaker device to emit a tone through its speaker. The wireless speaker device then emits a tone through its speaker to alert the user that a visitor is at the wireless A/V recording and communication device.

Abstract: An image of at least a portion of a room may be received, the image of the room comprising an image of a sensor mounted in the room. At least one optical parameter related to the image of the room may also be received. A distance may be determined between the sensor and a camera that captured the image of the room, wherein the determination of the distance is based at least in part on the optical parameters and on known physical dimensions of the sensor. A sensitivity requirement of the sensor may be determined, based on the distance. The determined sensitivity may be sent to control logic of the sensor.

Abstract: The present disclosure provides a multifunction emergency weather radio, which relates to the field of emergency devices. The multifunction emergency weather radio includes a housing. A rear face of the housing is provided with a crank, the crank is of a three-segment design and includes a crank grip, a crank lever, and a rotary disk respectively. Two ends of the crank lever are respectively connected to the crank grip and the rotary disk. An interior of the housing is provided with a coil and a magnet at a position of the rotary disk. The rear face of the housing is provided with an accommodating groove corresponding to the crank. An upper end of the housing is provided with a rotary plate, and a side of the rotary plate is rotatably connected to the housing.

Abstract: The present disclosure discloses a device for monitoring electrical equipment for electrical contact overheating, which comprises a gas collection device, a gas detection device, a data processing device, a data storage device and a display and early warning device. The present disclosure further discloses a method for monitoring electrical equipment for electrical contact overheating. The present disclosure can provide a basis for the evaluation and early warning of electrical contact overheating of electrical equipment based on the analysis of the thermally decomposed characteristic gases of the electrical joint compound, and has the characteristics of no space limitation, no need for a large number of layout points, high accuracy, simple structure and easy operation.

Abstract: A method for assigning a smoke detector (2) to be registered to a user profile (11) of a smoke detector management system (1), comprising the steps: establishing a data connection between the smoke detector (2) and a server (3) and transmitting first identification data (6) of the smoke detector (2) to the server (3); establishing a data connection between a mobile device (4) and the server (3); logging into the user profile (11) by means of the mobile device (4) using the user identification data (5); transmitting second identification data (7) of the smoke detector (2) to be registered to the mobile device (4); transmitting the second identification data (7) and/or the user identification data (5) to the server (3) by means of the mobile device (4); and identifying the smoke detector (2) by means of the first and/or second identification data (6; 7) and assigning the smoke detector (2) to the logged in user profile (11) or the user profile (11) corresponding to the user identification data (5).

Abstract: A sniffer leak detector is provided herein, including a sniffer probe and a vacuum pump which are connected to each other by a gas flow path, a gas analyzer arranged along the gas flow path and analyzes the gas taken in by the vacuum pump through the sniffer probe. The sniffer leak detector further includes a distance sensor that detects the distance between the sniffer probe and the test object, and a control is linked to the distance sensor. The control is designed to vary the carrier gas flow transported along the gas flow path, depending on the measured distance.

Abstract: Various arrangements for light distribution incorporated as part of a device are presented. A circular light guide may be used that receives light from a plurality of light emitters that can be arranged in a circular pattern. A conical reflector may be used and may be positioned to reflect light emitted from the circular light guide onto an exterior of a case of the device. The conical reflector may reflect light such that light is reflected by the exterior of the case in the shape of a halo into an ambient environment of the device.

Abstract: An inspection apparatus comprises a light output unit configured to output first light having a first wavelength and second light having a second wavelength, a magneto-optical crystal arranged so that a reflection film faces a measurement target, a light detection unit configured to detect the first light and the second light, and a light guide optical system configured to guide the first light and the second light toward the magneto-optical crystal and the measurement target, and guide the first light reflected by the magneto-optical crystal and the second light reflected by the measurement target toward the light detection unit. The light guide optical system comprises an optical path switching element configured to perform switching between optical paths of a plurality of optical elements so that the first light and the second light are selectively incident on the light detection unit.

Abstract: An installation assembly of a ceiling lighting fixture, a ceiling lighting fixture and a ceiling lamp are provided. The installation assembly includes a fixing base and a connecting base detachably connected with the fixing base. One of the fixing base and the connecting base is provided with a snap recess, and the other of the fixing base and the connecting base is provided with an elastic buckle which is capable of being snap-fitted with the snap recess. The elastic buckle has a guide slope, the elastic buckle is capable of being compressed as the connecting base moves toward the fixing base, and being introduced into the snap recess through the guide slope. The elastic buckle is rotationally fitted with the snap recess, and the snap recess is provided with an avoidance notch for the elastic buckle to be detached.

Abstract: Methods, apparatus, systems, and computer-readable media are provided for selective robot deployment. In various implementations, a context of a user may be determined based at least in part on a record of one or more computing interactions associated with the user. In various implementations, a robot-performable task of the user may be identified based at least in part on the context. In various implementations, a measure of potential or actual interest of the user in deploying a robot to perform the robot-performable task may be determined. In various embodiments, the robot may be selectively deployed based on the measure of potential or actual interest.

Abstract: A chamberless indoor air quality monitor system includes a detector body. A resistive heater is operatively connected to the detector body. An active temperature sensor operatively connected to the resistive heater and operatively connected to an outer surface of the detector body configured to take an active temperature measurement. A method for measuring temperature in a chamberless indoor air quality monitor system includes generating an active temperature measurement with an active temperature sensor operatively connected to an outer surface of the detector body. The method includes heating the active temperature sensor with a resistive heater operatively connected to the detector body. The method includes comparing the active temperature measurements to one another to generate a corrected active temperature measurement based on a temperature difference over time between one or more of the active temperature measurements.

Abstract: Smoke detection based on video images includes performing background image modeling on a current image, to acquire a foreground image and a background image of the current image; acquiring one or more candidate areas in the current image used for detecting a moving object, based on the foreground image; calculating attribute information of a candidate area corresponding to the current image and/or the background image; and determining whether there exists smoke in the candidate area according to the attribute information. The smoke can be detected quickly and accurately through video images, but also the detection accuracy of video-based smoke detection when light changes and at complex environments can be provided.

Abstract: Aspects for a gas detection system are described herein. As an example, the aspects may include a master device and one or more slave sensor devices communicatively connected to the master controller device. The one or more slave sensor devices may be configured to respectively detect one or more types of gases to generate detection results, convert the detection results into detection signals, transmit the detection signals to the master controller device. The master controller device may be configured to receive the detection signals, generate a detection report based on the detection signals, and transmit the detection report to one or more external devices.

Abstract: The invention relates to an AC power adapter plate capable of being mounted to a wall, ceiling, or power receptacle which comprises ports for connecting and providing DC power to peripheral devices and accessories.

Abstract: The present invention relates to an emergency notification system where indicators are mounted on or in a building in such a way that optical or thermal signals emitted from the indicators form a time-variant indication detectable outside the building of an emergency event taking place inside the building. Sensors detecting a predetermined sound are mounted inside the building and are each connected to a nearby indicator. When a sensor makes a detection, it sends event information to its associated indicator which will prompt the indicator to emit a first optical or thermal signal. Based on a signal from a timer connected to the indicator, a property of the first signal will change after a certain time has passed, thereby providing the time-variant indication.

Abstract: Open-chamber smoke detector and detection method. An elecromagnetic emitter emits radiation, a sensor receives the signal after it has travelled through the monitored area and analyses it to determine whether smoke is present by comparison with a reference signal representative of a smoke plume. An alarm condition is signaled when an evolution in the obtained data corresponds to the reference profile within a threshold amount.

Abstract: A Christmas tree fire extinguishing system is provided, wherein an automatically initiated fire extinguishing agent is contained within a housing below the tree and a plurality of smoke and heat sensors communicate to a control unit. The control unit controls the trigger and interprets the sensor signals, while also sending signals to a communications system upon a fire event to notify the homeowner and/or the local fire authorities. In combination with the fire extinguishing agent, the system can monitor the tree and alert property authorities in the event of a fire to prevent home fires and major property damage. Also provided is an audible fire alert for those in the home, wherein a sound generator is energized if smoke or fire is detected to warn those in the immediate vicinity.

Abstract: The present invention is disclosing a smart wearable accessory for rescue and tracking, comprising a belt portion configured to be worn by a wearer using a fastening mechanism. Belt portion comprises one or more sensors configured to generate signals corresponding to detection of one or more events in a facility, a global positioning system (GPS) tracker configured to detect a location of a wearer in facility, and a microprocessor. Microprocessor is configured to determine a severity level of one or more events based on an analysis of generated signals and location of wearer in facility, and generate one or more notifications and/or alert signals for one or more devices, communicably coupled to smart wearable accessory, based on determined severity level of one or more events. Microprocessor further activates a set of output devices positioned on belt portion based on signals received from one or more sensors.

Abstract: Various arrangements for operating a hazard detector are presented. A smoke concentration may be measured using a sensor of the hazard detector. A carbon dioxide concentration may be measured using a carbon dioxide sensor of the hazard detector. The measured smoke concentration may be analyzed in combination with the measured carbon dioxide concentration to determine whether a heads-up alert or warning alarm is to be output. The heads-up alert or the warning alarm may be output based on analyzing the measured smoke concentration in combination with the measured carbon dioxide concentration.

Abstract: An infrared (IR)-based gesture sensing and detection system that includes at least one IR sensor for sensing micro gestures of one or more heat-radiating bodies made within a gesture-sensing region located proximate to the IR sensor. Each unique micro gesture may be used as a control gesture for controlling one or more controllable devices. Non-limiting examples of controllable devices include smart wearable device, handheld computing devices, and smart appliances, among many others. In some embodiments, each IR sensor is a passive IR sensor based on a pyroelectric material, and the IR-based gesture sensing and detection system is configured to consume minimal power to operate.

Abstract: Various arrangements for light distribution incorporated as part of a device are presented. A circular light guide may be used that receives light from a plurality of light emitters that can be arranged in a circular pattern. A conical reflector may be used and may be positioned to reflect light emitted from the circular light guide onto an exterior of a case of the device. The conical reflector may reflect light such that light is reflected by the exterior of the case in the shape of a halo into an ambient environment of the device.

Abstract: Smoke and/or soot damage to an interior of a property, such as a residential building or home, may be mitigated. A controller is in communication with a heating, ventilation, and air conditioning (HVAC) system of the property. The controller is configured to receive an alert and/or intelligent home telematics data generated based upon a potential presence of smoke in a location associated with the property, either exterior or interior to the property. In response to receiving the alert and/or intelligent home telematics data, the controller is further configured deactivate an air circulation function of the HVAC system to mitigate smoke or fire damage to the property. The intelligent home telematics data may be generated by various smoke, fire, audio, visual, infrared, motion, and/or other smart sensors mounted about the interior and/or exterior of the property.

Abstract: An audio sound is detected. The audio sound is determined to be indicative of a power source of a safety sensor waning. Based on the determination, first light is produced based on a reaction of one or more chemicals with second light from a light emitting diode (LED).

Abstract: The systems and methods described herein are directed to techniques for improving battery life performance of end devices in resource monitoring systems which transmit data using low-power, wide area network (LPWAN) technologies. Further, the techniques include providing sensor interfaces in the end devices configured to communicate with multiple types of metrology sensors. Additionally, the systems and methods include techniques for reducing the size of a concentrator of a gateway device which receives resource measurement data from end devices. The reduced size of the concentrator results in smaller, more compact gateway devices that consume less energy and reduce heat dissipation experienced in gateway devices. The concentrator may comply with modular interface standards, and include two radios configured for transmitting 1-watt signals.

Abstract: Disclosed herein are exemplified methods and systems for evaluating a contaminant plume so as to generate presentations of temporal and spatial changes in the contaminant plume that facilitates readily identifiable interpretations of subtle, though significant, changes in concentrations or mass of the plume overtime. Exemplified presentations of the changes in the contaminant plume can facilitate more accurate assessment of plume behavior as well as the beneficial identification (in a more readily and systematic manner) of actionable events at the plume, including identification of new contaminant sourcing, identification of effective or ineffective applied remediation (e.g., monitor progress of Monitored Natural Attenuation (MNA)), and identification of changing site location, among others.

Abstract: A threshold barrier assembly includes an illumination system to facilitate visibility of the barrier assembly while mounted in a doorway or on a staircase, thereby reducing the risk of a trip hazard. The barrier assembly can include a frame comprising a pair of upright frame members connected to a lower cross member, and a barrier door comprising an upper horizontal cross member pivotally connected to the frame, a lower horizontal cross member, and vertical members connected between the upper and lower horizontal cross members. At least one illumination element is installed in at least one of the lower cross member, the upper horizontal cross member, or one or more of the vertical members. An integrated controller can control illumination of the illumination system based on a predetermined sequence, or detected environmental or operating conditions.