Microwave induction detection method and device for security
A technology of microwave induction and detection devices, which is applied to electric alarms, anti-theft alarms, instruments, etc., can solve the problems of high false alarm rate of microwave induction detectors, avoid frequent false alarms, improve reliability, reduce The effect of installation costs
Active Publication Date: 2017-05-17
NANCHONG SKY MICROWAVE
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[0003] The technical problem to be solved by the present invention is to provide a microwave induction detection method capable of judging the effective intrusion behavior of human beings in view of the defect that the false alarm rate of microwave induction detectors in the prior art is too high
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[0038] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.
[0039] figure 1 It is a block diagram of the hardware structure of the first embodiment of the microwave induction detection device of the present invention. see figure 1 As shown, the microwave induction detection device includes a Doppler probe 1 electrically connected in sequence, a receiving module 2, an intelligent control module 3 and an alarm 4. The Doppler probe 1 includes an oscillator 11 that generates microwave signals. An antenna 12 for sending and receiving microwave signals in the area, a receiver 13 for receiving microwave signals received by the antenna 12, a mixer 14 for comparing the frequency of the signal sent by the oscillator 11 and the frequency of the signal received by the receiver 13, and filt...
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The invention discloses a microwave-induced detection method and device and relates to the technical field of microwave sensor application. The microwave-induced detection method includes that through the microwave-induced detection device, Doppler effect is utilized, and receiving signal wave peak value and frequency are analyzed to judge whether someone intrudes a fortification area or not so as to start alarming. Through a method that an anti-interference judgment link is introduced for a microwave sensing detector, frequent false alarming caused by non-human-body effective intrusion behaviors is avoided, and reliability of the microwave sensing detector is improved; due to improvement on the prior art, the microwave-induced detection method can be realized by only writing a program in a single chip microcomputer, and hardware equipment does not need to be added additionally, so that complexity caused by integration of sensing technology, like tri-technology detection, of other types is avoided, and mounting cost is reduced.
Description
technical field [0001] The invention relates to the technical field of microwave sensor applications, and more specifically, to a microwave induction detection method and device for security protection. Background technique [0002] With the large-scale application of microwave semiconductor technology, the physical realization of microwave technology is not only very simple and cheap, but also very small in size. Therefore, in the field of security, Doppler microwave sensors have been widely used in the market, and their active detection technology avoids infrared radiation. The weather resistance of the probe is poor, and there are shortcomings such as short blind spots, and because the output signal of the microwave sensor contains more speed, intensity and other information than the infrared sensor, it is convenient for developers to do more processing on the software to improve the anti-jamming and anti-interference of the alarm. The ability to underreport. The main di...
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IPC IPC(8): G08B13/24
CPCG08B13/2491
Inventor 刘仪曾庆刚刘宁
Owner NANCHONG SKY MICROWAVE