摘要:
A system (figure 1) for secluding a zone in which it is completely surrounded by a light beam barrier (14) such that any object or person striving to cross the barrier invokes an alarm if the crossing complies with various conditions The barrier is a continuous light beams formed using one light source (12) The light beam is projected from the source at one end of a path, and finally impinging on a light detector (22) The deflected light beam of the invention forms an envelope of a voluminous virtual body, that which is regarded as a seclude volume.
摘要:
A system for reducing a risk of drowning in a pool includes a pool monitoring unit and a swim monitoring station. The pool monitoring unit is switchable between an activated state and a deactivated state. The pool monitoring unit is configured to detect entrance into the pool and/or movement in the pool and to output an alarm signal in response a detected entrance into the pool and/or movement in the pool when in the activated state. The swim monitoring station is configured to wirelessly communicate with one or more wearable alarm devices and the swim monitoring station is in wireless communication with the pool monitoring unit. The swim monitoring station is switchable between an off state and an on state. In the on state, the swim monitoring station is configured send a wireless signal to the pool monitoring unit to deactivate the pool monitoring unit.
摘要:
The invention relates to a device (1) for detecting the presence of an object or of a living being between two end points. This device (1) comprises, on the one hand, a means (2) for emitting an electromagnetic signal comprising an emit antenna (20) associated with a first end point, and a means (21) for exciting this antenna (20) so as to make this antenna (20) emit such a signal and, on the other hand, a means (4) for receiving this electromagnetic signal comprising a receive antenna (40) associated with a second end point, together with means (41) for detecting such a signal. This detection device (1) is characterized in that the emit (20) and receive (40) antennas each adopt the form of a tubular waveguide (200; 400) having at least one wall provided with at least one opening. The invention further relates to an installation for protecting, for counting or for closing an opening equipped with such a detection device (1).
摘要:
A system for reducing a risk of drowning in a pool includes a pool monitoring unit and a swim monitoring station. The pool monitoring unit is switchable between an activated state and a deactivated state. The pool monitoring unit is configured to detect entrance into the pool and/or movement in the pool and to output an alarm signal in response a detected entrance into the pool and/or movement in the pool when in the activated state. The swim monitoring station is configured to wirelessly communicate with one or more wearable alarm devices and the swim monitoring station is in wireless communication with the pool monitoring unit. The swim monitoring station is switchable between an off state and an on state. In the on state, the swim monitoring station is configured send a wireless signal to the pool monitoring unit to deactivate the pool monitoring unit.
摘要:
A monitoring system for a periphery of a structure comprises a monitoring module (102) having a detection and ranging system (304, 308) arranged to support monitoring of a portion of the periphery corresponding to a coverage field in order to detect passage of a body beyond the periphery. The detector (304, 308) has an imaging resolution that prevents conclusive visual identification by a human operator of the nature of the body. The monitoring module also comprises a video capture apparatus (312, 314) arranged to provide video data in respect of the coverage field. The system also comprises a monitoring station apparatus (200) arranged to receive data from the monitoring module (102). In response to detection of the passage of the body by the detection system (304, 308), the monitoring station (200) enables the operator to review the video data. The video data enables the operator to identify readily the nature of the body detected and thereby to provide confirmatory visual evidence when the body is human.
摘要:
A virtual electronic perimeter fence (20) includes at least a first (12), second (14) and third (16) fence post each including an emitter (12E, 14E, 16E) for emitting a beam of infrared light at a predetermined frequency. The first (12), second (14) and third (16) fence posts include a receiver (12R, 14R, 16R) for receiving the predetermined frequency of infrared light emitted from a designated fence post (12, 14, 16). A beam of infrared light of a first frequency is emitted from the first fence post (12) to the second fence post (14) and a beam of infrared light of a second frequency is emitted from the second fence post (14) to the third fence post (16) and infrared light of a third frequency is emitted from the third fence post (16) to the first fence post (12) for providing a virtual electronic perimeter fence (20) that provides an alarm if an interruption occurs in the beam of infrared light while eliminating cross-signals therebetween. A light, sound and video system may be provided.