摘要:
A device and method for detecting motion with antimasking capability. The device including an antenna (135), a dual-channel reception circuit, and an electronic processor (125). The dual-channel reception circuit includes a first channel (110) and a second channel (115). The electronic processor is electrically connected to the dual-channel reception circuit and is configured to receive a first signal from the first channel indicative of motion at a first range, and receive a second signal from the second channel indicative of motion at a second range. At least a portion of the second range is shorter than the first range. Based on the first signal and the second signal, the electronic processor is configured to generate a notification.
摘要:
Systems and methods for providing a plurality of alarm levels for a motion detector monitoring a region are provided. Some methods can include a microwave sensing device detecting a presence of an intruder in a monitored region, a microcontroller coupled to the microwave sensing device determining a position of the intruder in the monitored region based on signals from the microwave sensing device, and the microcontroller triggering one of a plurality of alarm levels based on the position of the intruder in the monitored region.
摘要:
A method for detecting intrusions in a monitored volume in which: - N tridimensional sensors acquire local point clouds (C) in respective local coordinate systems (S), - a central processing unit (3) receives the acquired local point clouds (C) and, for each sensor (2), computes updated tridimensional position and orientation of the sensor (2) in a global coordinate system (G)of the monitored volume by aligning a local point cloud (C) acquired by said tridimensional sensor with a global tridimensional map (M) of the monitored volume (V), and generates an aligned local point cloud (A) on the basis of the updated tridimensional position and orientation of the sensor (2), - the central processing unit monitors an intrusion in the monitored volume (V) by comparing a free space of the aligned local point cloud (C) with a free space of the global tridimensional map (M).
摘要:
An automated system for mitigating risk from a wind turbine includes a plurality of optical imaging sensors. A controller receives and analyzes images from the optical imaging sensors to automatically send a signal to curtail operation of the wind turbine to a predetermined risk mitigating level when the controller determines from images received from the optical imaging sensors that an airborne animal is at risk from the wind turbine.
摘要:
Die Erfindung betrifft eine Vorrichtung (2) zum Objektschutz mit zumindest zwei Laserscannern (3), welche dafür ausgebildet sind, jeweils einen dem Objekt (1) vorgelagerten Laserstrahl-Scanfächer (5) auszustrahlen und ein Durchdringen des Scanfächers (5) zu detektieren, dadurch gekennzeichnet, dass die Laserscanner (3) am Boden (4) neben dem Objekt (1) mit nach oben, zumindest einer davon schräg nach oben, und einander schneidend ausgerichteten Scanfächern (5) angeordnet sind, wobei die Scanfächer (5) eine geschlossene, das Objekt (1) einhüllende Scanhaube (7) bilden.
摘要:
A method for generating an infrared (IR) beam for illuminating a scene to be imaged comprises providing at least two IR emitters, including a first IR emitter operable to emit a wide beam component of the IR beam, and a second IR emitter operable to emit a narrow beam component of the IR beam, wherein the wide beam component has a linear profile that has a lower standard deviation than a linear profile of the narrow beam component. The method also comprises selecting a desired linear profile for the IR beam, and selecting a power ratio of power directed to the first IR emitter and power directed to the second IR emitter that produces the IR beam with the desired linear profile when the narrow beam component and wide beam component are combined; and directing power to the first and second IR emitters at the selected power ratio to generate the wide and narrow beam components, and combining the generated wide and narrow beam components to produce the IR beam.
摘要:
An intrusion detection device includes a plurality of intrusion detection sensors (1) each configured to detect intrusion of an object into a security area W and output a warning signal; and a bracket (2) having a single device-mounting surface (2c) and a plurality of sensor-mounting surfaces (2d) on which the respective intrusion detection sensors (1) are mounted such that predetermined angles thereof different from each other are maintained. The bracket (2) includes a hollow portion (S) in which a wire between each intrusion detection sensor (1) is installed. In addition, each intrusion detection sensor (1) includes an optical section (3) including: a main unit (3A) which includes a detection element (30); and a unit holder (4) which rotatably supports the main unit (3A), and the security area (W) is adjusted such that a direction thereof is changed, by rotation of the main unit (3A).
摘要:
A presence detection system (1) for detecting a living being (10) within an area (12). The area (12) comprises at least two zones (12A;12B). The system (1) in total comprises at least two light sources (2A;2B) each of them having a different predefined spectrum and each of them radiating light in a different zone (12A;12B). The system comprises at least two sensing means (4A;4B) sensitive to light of the first predefined spectrum and the second predefined spectrum respectively. Each of the sensing means (4A;4B) is arranged for detecting light reflected from the living being (10) if present in the zone (12A;12B) of the area (12) and for generating a presence signal (14A;14B) based on detected light. The system comprises a processor device (8) that concludes the presence of the living being (10) within the area (12) in a zone wise way based on the presence signals. Such presence detection system provides relatively precise presence detection. The invention also relates to a lighting system comprising the above mentioned presence detection system (1).
摘要:
A security system to secure an area, the system having a sensor system to determine a location of a moving object within said area, the sensor system including a radar system; a control device connected to said sensor system; an illumination device to provide a light beam said light beam being directable to different locations in said area; and an actuator controlled by said control device to direct said light beam to a desired location, wherein said control device is configured to direct the light beam to a location where the presence of a living body is determined by said sensor system.