摘要:
The present invention relates to a system for detecting a drone (1) around a building (2). The system comprises at least one lidar (3) to monitor the area around the building (2). The lidar (3) is installed on the building (2). The system further comprises a processing unit able to detect the drone (1) and localize it and to determine its trajectory from raw data generated by the at least one lidar (3). The processing unit is programmed with deterministic and/or artificial intelligent algorithms. The system further comprises a control unit to inform about the presence of the drone (1) around the building (2). The disclosure further concerns the use of a glass as a window or spandrel of a building in combination with at least one lidar (3) in order to detect a drone (1) around the building (2). The disclosure also concerns the use of a glass as an optical window of a housing of a lidar (3). The glass has an absorption coefficient at the operating wavelength of the at least one lidar (3) of less than 15 m -1 , preferably less than 10 m -1 , even more preferably less than 5 m -1 . Very transparent glass in the near infrared, with weak or no impact on its aesthetic or its color, can be obtained by combining in the glass composition a low iron quantity and chromium in a range of specific contents.
摘要:
LiDAR ranging devices include an optical transmitter, and an optical receiver assembly. There is one LiDAR, and there can be more LiDARs each covering a filed or area of sensing. The LiDAR devices are mounted within a building on a support structure in spaced relationship from each other. The fields of sensing from each LiDAR collectively provide an enhanced filed or area of sensing of an area in the building. Each LiDAR and its base are tuned to sense human traffic. A base collects sensed data from each LiDAR such that tracking information and movement of human traffic over the enhanced area is received by the base. The fields of sensing of each LiDAR can overlap, and an analytic program stitches the sensed data from each LiDAR to obtain a stitched map of sensed data over the enhanced area. Barriers to line of site between humans to be sensed and LiDAR devices are minimized by the LiDARs.
摘要:
A surveillance camera provided in embodiments of the present disclosure combines a pyroelectric infrared sensor and a Doppler radar detector into a movement detection module, therefore solving the technical problem that a surveillance is of low environmental adaptability and less accuracy in detecting a moving human body. The detection camera according to an embodiment of the present disclosure comprises a processor, a movement detection module, a video acquisition module, a storage module and a network module that are respectively connected with the processor. The movement detection module comprises a pyroelectric infrared sensor and a Doppler radar detector; the pyroelectric infrared sensor, upon detecting infrared image information, outputs a pyroelectric infrared signal; and the Doppler radar detector, upon detecting Doppler reflection image information, outputs a Doppler reflection signal.
摘要:
Die Erfindung betrifft ein Verfahren zum Einstellen von mehreren Teilbereichen eines gewünschten Schutzbereiches, bei welchem a) die Positionen einer Mehrzahl von Überwachungseinheiten erfasst werden, wobei jede Überwachungseinheit einen Detektionsbereich erfasst, b) eine maximale Größe jedes Detektionsbereichs ermittelt wird, c) der gewünschte Schutzbereich in einer graphischen Benutzeroberfläche festgelegt wird, d) anhand der Positionen der Überwachungseinheiten, der maximalen Größe der Detektionsbereiche und des gewünschten Schutzbereiches die von den jeweiligen Überwachungseinheiten zu überwachenden Teilbereiche festgelegt werden und e) die Teilbereiche den jeweiligen Überwachungseinheiten zugewiesen werden.
摘要:
The configuration includes a laser range finder (110), a scan mechanism (120), a distance-data acquiring unit (130), a memory (160), which stores installation state information and detection-area information for each measurement direction, a human-body determining unit (140), a detection area-information updater (140), which updates detection-area information under a predetermined condition, and the alert-output control unit (150). The human-body determining unit (140) extracts a portion that possibly corresponds to a human body in an object that has invaded or moved, which is found out by comparison with the detection-area information based on the acquired distance information, and determines whether or not a rest of the respective extracted portions is a human body based on a movement state of each of the extracted portion in chronological order. The rest of the extracted portions excludes the extracted portions where a movement distance within a predetermined time is within a predetermined distance.
摘要:
A digital enhanced cordless telecommunication (DECT) base station, the DECT base station includes a transmitter that is arranged to transmit, at different points of time, downlink transmitted DECT signals to another DECT device that differs from the DECT base station; a receiver that is arranged to receive from the other DECT device downlink reception information indicative of attributes of downlink received DECT signals that were received by the other DECT device as a result of the transmission of the downlink transmitted DECT signal; a processor that is arranged to process the downlink reception information to detect a motion that affects a reception of the downlink received DECT signals by the other device.