A vehicle system includes: smoke sensors located at different locations within a passenger cabin of a vehicle and configured to measure amounts of cigarette smoke at the locations, respectively, within the passenger cabin of the vehicle; and a smoking module configured to, based on the measured amounts of cigarette smoke, determine that: a smoking event occurred at a first location within the passenger cabin; and the smoking event did not occur at a second location that is different than the first location within the passenger cabin of the vehicle.

A fire detection and suppression system includes a system controller for determining an initial location of the fire based on fire location information from fire detectors, and then the system controller determines a final location of the fire based on fire location information taking into account spatial and/or angular relationships between the fire detectors and the initial location. The system controller determines a location of the fire and activates monitors to deploy suppressant based on a distance between each of the monitors and the location of the fire. The system controller controls the monitors based on how the suppressant is deployed onto the fire.

A method for performing video analytics includes receiving at a source end video data including first video data relating to an event of interest. Using video analytics, other than a data compression process, pre-processing of the video data is performed at the source end to reduce the bandwidth requirement for transmitting the video data to below a bandwidth limit of a Wide Area Network (WAN) over which the video data is to be transmitted. The pre-processed video data is transmitted to a central server via the WAN, where other video analytics processing of the pre-processed video data is performed. Based on a result of the other video analytics processing, a signal is generated for performing a predetermined action, in response to an occurrence of the event of interest at the source end.

This invention relates to the field of sensing flames in equipment using a combustion burner such as gas furnaces by using the electrical properties of flames. In a first group of embodiments flame rectification is used to cause distortion of a signal having a selected waveform. A harmonic of the distorted waveform is detected thereby providing flame proof. In a second group of embodiments flame rectification is used as a mixer to cause two signals having selected waveforms to produce sum and difference signals. The sum and/or difference signals are detected thereby providing flame proof.

According to some embodiments of the present invention there may be provided one or more video surveillance units including: (i) video capturing equipment (e.g. a video camera), (ii) processing circuitry adapted to modify/sanitize video streams captured by the video capturing equipment to generate sanitized video streams devoid of privacy infringing data/images, and (iii) communication circuitry for transmitting sanitized video streams to one or more monitoring units for analysis. The monitoring units, in turn, may analyze the sanitized video streams to identify security events occurring within the area being captured by the surveillance units.

A method of detecting a flame in an image comprising the step of acquiring a series of infrared images from an infrared imager. Image flow vectors are calculated for each of the series of infrared images and stored in a corresponding 2D vector array. At least one 3D image flow data set is generated from the corresponding 2D vector arrays. A 2D pixel intensity array is generated for each of the series of infrared images. A 3D pixel intensity data set is generated from the 2D pixel intensity arrays. A Fourier Transform and infrared metrics are calculated. The infrared metrics are compared to an infrared threshold criteria. A corresponding 2D threshold array for each of the series of infrared images is generated. A 3D threshold data set is generated from the 2D threshold arrays. A flame status is determined based on the 3D threshold data set.

Aspects of the invention are directed towards a system and a method for determining a false alarm based on analysis of video/s. One or more embodiments of the invention describe the method comprising steps of receiving one or more pre-recorded videos, the one or more pre-recorded videos indicating a false alarm activation. One or more embodiments of the invention further describe steps of analyzing false alarm activation in the one or more pre-recorded videos and receiving a real-time video captured from a camera. Accordingly, the false alarm is determined in the real-time video based on the analysis of the false alarm activation in the one or more pre-recorded videos.

A computer-implemented method that, when executed by data processing hardware, causes the data processing hardware to perform operations. These operations include receiving alarm signals associated with a thermal event, receiving thermal imaging data for the observation zone associated with the thermal event, evaluating the thermal imaging data to determine the location and/or the area of the thermal event within the observation zone. The operations also include obtaining a configuration record that includes configuration parameters for a retardant dispenser associated with the observation zone. Using the configuration parameters, the operations include instructing the dispenser to provide a retardant to the thermal event.

A gas detection device has at least one functional device (1, 13), which is configured to receive radiation (10) passing through a defined monitoring area (4). At least one analysis unit (9, 19) is configured to detect and analyze a change in the received radiation (10). The received radiation (10) is based on the interaction of the radiation (10) with a gas present within the monitoring area (4). At least one camera (8) has a field of view (11) that at least partially detects the monitoring area (4).

An emergency sensor system comprising: a plurality of environmental sensors; a local monitoring station (LMS) connected to each of the plurality of environmental sensors, the LMS comprising a transceiver, a processor, and a memory having stored thereon instructions that, when executed by the processor, control the processor to execute a method comprising: receiving, from at least one of the plurality of environmental sensors, sensor data indicative of an environmental state proximate the at least one environmental sensor, analyze the sensor data, and output, to a remote responder system, an alert based on the sensor data.