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High-reliability microwave induction controller

A technology of microwave induction and controller, which is applied in the direction of electromagnetic wave detection and electric alarm, can solve the problems of unstable output signal, difficult debugging, complex structure, etc., and achieve space saving, cost reduction and debugging difficulty, Reduce the effect of the signal output processing section

Inactive Publication Date: 2009-12-09
GUANGDONG ELECTRONICS IND INST
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

This kind of existing high-reliability microwave induction controller, because the working frequency is on the relatively high frequency of 2.4GHz, the output signal of the micro-processing integrated circuit 3 that the model is HT7610A is not stable enough, needs the auxiliary signal processing circuit; If need to use 4093 Circuit etc.
Therefore, the circuit structure of the existing high-reliability microwave induction controller is relatively complicated, the cost is high, and the debugging is difficult; the loop antenna also makes the product bulky

Method used

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Embodiment Construction

[0015] See attached figure 2 , the present invention realizes the simplification of the circuit by adjusting the oscillation frequency of the oscillation circuit; the frequency of the LC (inductance capacitance) oscillation circuit connected with the microprocessing integrated circuit 3 is adjusted from 2.4GHz to 800MHz~1.4GHz. Specifically, it can be: the capacitance of the oscillation capacitor connected between the microwave triode 2C (collector) and B (base) in the oscillation circuit is 22pF-100pF; The inductance value of the oscillation inductor 5 is 220mH; the capacitance value of the capacitor connected between the 12th pin OP1N pin and the 13th pin OP1O pin of the microprocessor integrated circuit 3 is 22nF, and the resistance value of the resistor R11 is 1MΩ (megohm); thus the frequency Adjust to 800MHz ~ 1.4GHz. After effectively reducing the frequency of the oscillating circuit, the unstable problem of the signal output part in the circuit can be improved; thereb...

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Abstract

The invention relates to a high-reliability microwave induction controller which carries out non-directional, deadband-free and 360-degree circular region exploring to ambient environment. The high-reliability microwave induction controller adopts the technical scheme: regulating the frequency of an LC oscillating circuit connected with a micro-processing integrated circuit into 800MHz-1.4GHz from 2.4GHz. The invention can effectively solve the problems that the signal output is instable due to overhigh frequency of the oscillating circuit and can be applied in the high-reliability microwave induction controller.

Description

technical field [0001] The invention relates to a high-reliability microwave induction controller capable of detecting the surrounding environment in a non-directional, dead zone, and 360-degree circular area. Background technique [0002] In institutions, warehouses, banks, shops, orchards, fish ponds, homes and other places that require security and anti-theft, microwave induction controllers are often used; through microwave induction controllers, non-directional, dead zone, and 360-degree circular area detection . The circuit diagram of the existing high-reliability microwave induction controller is as follows: figure 1 As shown, a microwave oscillator circuit with a working frequency of 2.4GHz is composed of a loop antenna 1 and a microwave triode 2 inside. The loop antenna is used as a transmitting antenna and can also receive echoes reflected by human body movement. This kind of existing high-reliability microwave induction controller, because the working frequency ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/12G08B13/22
Inventor 曾导葛仁北季统凯陈冰冰
Owner GUANGDONG ELECTRONICS IND INST
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