Small animal intrusion monitoring method, device and system
A technology for intrusion monitoring and small animals, which is applied to instruments, alarms that rely on interference with short-wavelength radiation, burglar alarms, etc., can solve problems such as inability to effectively monitor small animals, and achieve the effect of protecting related equipment
Inactive Publication Date: 2017-04-19
STATE GRID CORP OF CHINA +1
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[0003] In view of the defect that illegal intrusion detectors commonly used in traditional technology cannot effectively monitor intruding small animals in narrow and complex cable trenches, embodiments of the present invention provide a small animal intrusion monitoring method, device and system
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[0045]The body temperature of small animals is generally 35°C to 38.5°C. When small animals appear in the cable trench, the surface temperature of the monitored sub-area where the small animals are located will change significantly. The surface temperature of different areas in the cable trench will be affected by the climate and the temperature of the cable, and the fluctuation range is large, but the surface temperature of the adjacent monitored sub-area is basically the same, so when the surface temperature of a certain monitored sub-area is adjacent to the surrounding When the temperature difference between multiple adjacent monitored sub-areas is large, it can be determined that small animals have invaded the cable trench. The terrain of the cable trench is long and narrow. In order to realize the comprehensive monitoring of the ground of the cable trench, the small animal intrusion monitoring device includes multiple monitoring units. Each monitoring unit covers and monit...
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The invention provides a small animal invasion monitoring method which includes the steps of obtaining the surface temperatures, measured by each monitoring unit, of monitored sub-areas, calculating the temperature difference between the surface temperature of each monitored sub-area and the surface temperature of corresponding adjacent monitored sub-area, judging whether the temperature difference between the surface temperature of each monitored sub-area and the surface temperature of corresponding adjacent monitored sub-area is larger than a preset temperature difference, obtaining the number of the adjacent monitored sub-areas with the temperature difference larger than the preset temperature difference, judging whether the number of the adjacent monitored sub-areas with the temperature difference larger than the preset temperature difference is larger than a preset number threshold, and sending an invasion warning signal to a monitoring host if the number of the adjacent monitored sub-areas with the temperature difference larger than the preset temperature difference is larger than or equal to the preset number threshold. Whether small animals invade is judged according to temperature changes of the monitored sub-areas, so that the small animals in a monitoring range are detected in narrow and complex terrain environment, and associated equipment is protected.
Description
technical field [0001] The invention relates to small animal intrusion monitoring technology, in particular to a small animal intrusion monitoring method, device and system in a cable trench. Background technique [0002] Rats, snakes and other small animals are small in size, and can easily sneak into substations and cable trenches, causing non-negligible harm to substation equipment, and easily causing accidents such as equipment short-circuit and power failure. The protective measures currently adopted in substations mainly include installing anti-rat baffles, putting rat poison, and controlling the cable holes leading to the equipment room and the main control room, air-conditioning holes, equipment mechanism boxes, terminal boxes, and cable trenches leading to the room, doors and windows and The exhaust fan is blocked. In addition, some substations install small animal illegal intrusion detectors based on the principle of infrared sensing in places where small animals ...
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IPC IPC(8): G08B13/00G08B13/18
CPCG08B13/19G08B25/009G08B25/10G08B29/18
Inventor 李祥珍欧清海甄岩杨猛王奔冯志刚刘翠杰赵晓娜
Owner STATE GRID CORP OF CHINA