DETECTION CIRCUIT AND SYSTEM FOR DETECTING DETECTOR REMOVAL FAILURE

    公开(公告)号:US20240304077A1

    公开(公告)日:2024-09-12

    申请号:US18598470

    申请日:2024-03-07

    摘要: The present application relates to a detection circuit for detecting a detector removal fault. The detection circuit comprises: a switching circuit. The switching circuit comprises one or more switching elements; an energy storage element; and a control circuit for controlling the energy storage element to discharge by controlling the one or more switching elements to perform an opening or closing action. The control circuit is configured to cause the energy storage element to discharge based on a first loop if the detector is removed from the diode bases, and to cause the energy storage element to discharge based on the first loop and a second loop including the terminal resistor if the detector is not removed from the diode bases. The control circuit is further configured to detect the detector removal fault based on an output voltage of the area monitoring module during discharge process.

    Method for determining the performance of a constant false alarm rate device of a sensor and associated devices and method

    公开(公告)号:US20240203238A1

    公开(公告)日:2024-06-20

    申请号:US18537800

    申请日:2023-12-13

    申请人: THALES

    IPC分类号: G08B29/04

    CPC分类号: G08B29/04

    摘要: A method for measuring the performance of a CFAR detection system of a sensor in observing an environment, the CFAR detection system being provided with an estimator suitable for determining an estimate of parameters related to noise affecting the sensor depending on parameters related to the environment, the measurement method including estimating noise-related parameters, obtaining detection thresholds for the CFAR detection system, characterizing estimation errors of the estimator of the CFAR detection system, determining each detection threshold likely to be actually used by the CFAR system due to estimation errors, and calculating the performance of the CFAR detection system on the basis of the detection thresholds determined.

    Limiting Service Availability When Sensor Device is Non-Operational Due to Noise Floor Change

    公开(公告)号:US20180061214A1

    公开(公告)日:2018-03-01

    申请号:US15249692

    申请日:2016-08-29

    发明人: Plamen Vanchev

    摘要: Concepts and technologies are disclosed herein for limiting service availability when a sensor device is non-operational due to a noise floor change. According to one aspect of the concepts and technologies disclosed herein, a connected home system includes a controller device configured to monitor a plurality sensor devices deployed within a premises, and a sensor device of the plurality of sensor devices. The sensor device can monitor radio frequency (“RF”) noise in a radio environment associated with the premises. The radio environment is associated with an RF noise floor. The sensor device can determine whether the radio frequency noise exceeds a noise threshold. In response to determining that the RF noise exceeds the noise threshold, the sensor device can cause the controller device to exclude the sensor device from being monitored by the controller device until the RF noise returns to below the noise threshold.