System and method for locating sunken element in a predetermined search zone

    公开(公告)号:US12092748B2

    公开(公告)日:2024-09-17

    申请号:US17921779

    申请日:2021-04-28

    申请人: THALES

    摘要: Disclosed is a method for assisting in the location of an engulfed element in a predetermined search zone, implemented by a location assistance system including at least a plurality of patrollers including at least one drone, the method including at least the following steps: arrival of the drone at the predetermined search zone; determination by the drone, of the topography of the predetermined search zone; division of the predetermined search zone into areas, by the drone, depending on the topography and the capabilities of each patroller, and assigning of each area to at least one patroller; searching for the engulfed element in each search zone by the at least one patroller assigned to the area; and periodic inter-patroller communication at least until the at least one engulfed element is located.

    Security system
    4.
    发明授权

    公开(公告)号:US12052054B2

    公开(公告)日:2024-07-30

    申请号:US17619588

    申请日:2019-06-27

    摘要: There is provided a security system for use at an enclosure containing one or more passive components of an optical communication link. The security system comprises a sensor configured to detect a physical breach of the enclosure, and an optical alert signal generator coupled to the optical communication link. The optical alert signal generator is self-powered, and configured to generate an optical alert signal and transmit the optical alert signal through the optical communication link when a physical breach of the enclosure is detected by the sensor. The optical alert signal is detectable at an entity external to the enclosure and connected to the optical communication link.

    Phase Lock Loop Siren Detection
    8.
    发明公开

    公开(公告)号:US20230351891A1

    公开(公告)日:2023-11-02

    申请号:US18339610

    申请日:2023-06-22

    申请人: Waymo LLC

    摘要: One example system for detecting an emergency siren comprises a microphone device, a band pass filter operably coupled to the microphone device and configured to filter sound data from the microphone device to produce filtered sound data, a phase lock loop circuit configured to phase filter the filtered sound data to produce phase filtered data, and a processor configured to determine a presence of a siren signal from the phase filtered data.

    DOORBELL SYSTEM
    10.
    发明公开
    DOORBELL SYSTEM 审中-公开

    公开(公告)号:US20230316879A1

    公开(公告)日:2023-10-05

    申请号:US18024769

    申请日:2021-03-16

    IPC分类号: G08B3/10 G08B1/08

    CPC分类号: G08B3/10 G08B1/08

    摘要: Provided is a doorbell system, including an indoor terminal, an outdoor terminal, and a power supply (100). The indoor terminal includes a bell controller (220) and an indoor bell (210) which are connected in parallel; the outdoor terminal includes an outdoor doorbell (310) and an outdoor switch (320); the indoor terminal, the outdoor terminal, and the power supply (100) are connected in series to form a closed loop; in response to the outdoor switch (320) being switched off, the bell controller (220) is turned on, the indoor bell (210) is short-circuited, and the power supply (100) powers the outdoor doorbell (310); and in response to the outdoor switch (320) being switched on, the bell controller (220) is turned off, and the power supply (100) powers the indoor bell (210).