CN202816064U

CN202816064U - Novel antitheft monitoring system

Info

Publication number: CN202816064U
Application number: CN 201220372683
Authority: CN
Inventors: 傅仰取
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-07-31
Filing date: 2012-07-31
Publication date: 2013-03-20
Anticipated expiration: 2022-07-31

Abstract

The utility model relates to a novel antitheft monitoring system, comprising a microwave detection circuit, a touch induction circuit and a single-chip microcomputer control circuit. Output signals of the microwave detection circuit and the touch induction circuit are transmitted to the single-chip microcomputer control circuit. Output signals of the single-chip microcomputer control circuit are transmitted to an RS485 communication interface circuit. The single-chip microcomputer control circuit is also in bidirectional data communication with a watchdog circuit. When undesirables get close to a door, the microwave detection circuit of the utility model detects a human body reflection signal. If hands of the undesirables contact a touch metal piece of a door lock, after comprehensive judgment is made by the single-chip microcomputer, an alarm signal is transmitted to a system alarm host via a system alarm bus. In this way, the novel antitheft monitoring system has the advantages of wide detection range, low false alarm rate, etc., and is suitable for households, storehouses, shops and other places.

Description

A kind of novel anti-theft supervisory system

Technical field

The utility model relates to a kind of supervisory system, particularly be a kind of novel anti-theft supervisory system.

Background technology

Modern society, security precautions technology is more and more important, the working clan in the city particularly, and all go to work in company one day daytime, only have just go home evening, like this, thief's burglary of just may taking advantage of the occasion daytime is although there is the guard in the residential quarter, but the people that also can only accomplish the suspicion that prevents passes in and out the residential quarter, along with intelligentized progressively ripe, the burglar alarm on the market is more and more, but it mainly be wired alarming is main.

The utility model content

The purpose of this utility model is to provide a kind of novel anti-theft supervisory system.

The technical scheme that its technical matters that solves the utility model adopts is: a kind of novel anti-theft supervisory system, comprise microwave testing circuit, touch induction circuit and single chip machine controlling circuit, the output signal of described microwave testing circuit and touch induction circuit transfers to single chip machine controlling circuit, the control of the output signal of single chip machine controlling circuit is sent to the RS485 communication interface circuit, described single chip machine controlling circuit also with the watchdog circuit bidirectional data communication.

Preferably, described microwave testing circuit gathers microwave signal by the antenna Y1 of radar detected module IC2 and connection thereof, and the output terminal of described radar detected module IC2 is connected with triode VT2.

Preferably, described touch induction circuit is made of the trigger module IC1 that touches the connection of sheet metal A and output terminal thereof, and the output terminal of described trigger module IC1 also is connected with triode VT1.

Preferably, described RS485 communication interface circuit is connected to alarm host machine by SN75176 communication interface chip IC3.

By adopting above-mentioned technical scheme, the beneficial effects of the utility model are: when the close door of undesirable, microwave testing circuit of the present utility model detects the human body reflected signal, when if undesirable's hand also touches the touch sheet metal of door lock, after the comprehensive judgement of single-chip microcomputer, send alerting signal by the system alarm bus to the system alarm main frame, reach the advantages such as sensing range is wide, rate of false alarm is low, be applicable to the occasions such as family, storehouse, shop.

Description of drawings

Fig. 1 is frame assumption diagram of the present utility model;

Fig. 2 is circuit theory diagrams of the present utility model.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

As shown in Figure 1 and Figure 2, a kind of novel anti-theft supervisory system of the present utility model, comprise microwave testing circuit 1, touch induction circuit 2 and single chip machine controlling circuit 3, described microwave testing circuit 1 transfers to single chip machine controlling circuit 3 with the output signal of touch induction circuit 2, the control of the output signal of single chip machine controlling circuit 3 is sent to RS485 communication interface circuit 31, described single chip machine controlling circuit 3 also with watchdog circuit 5 bidirectional data communications.

Described touch induction circuit 2 is made of the trigger module IC1 that touches the connection of sheet metal A and output terminal thereof, the output terminal of described trigger module IC1 also is connected with triode VT1, when the theft suspicioner touches touch sheet metal A with hand, trigger module IC1 is triggered and is overturn, enter transient state by stable state, its the 3rd pin becomes high level by low level, make triode VT1 conducting, its collector is electronegative potential output, this signal is input to the 35th pin I/O end of single-chip microcomputer IC4 through resistance R 4 current limlitings, after the comprehensive judgement of single-chip microcomputer IC4 internal processes, by single-chip microcomputer IC4 the 10th, 11, the 1st of 28 pin and SN75176 communication interface chip IC3,2,3,4 pin form RS485 communication interface circuit 31, send data-signal by single-chip microcomputer IC4 to SN75176 communication interface chip IC3, after the conversion of SN75176 communication interface chip IC3 internal data, send alert data information to alarm host machine, show current warning address information through the inner configuration software of alarm host machine, notify the operator on duty to go to the processing alert, strive for the first time of fire alarming.

Described microwave testing circuit 1 gathers microwave signal by the antenna Y1 of radar detected module IC2 and connection thereof, the output terminal of described radar detected module IC2 is connected with triode VT2, when if the undesirable is movable in antenna Y1 effective scope of detection, antenna Y1 just receives microwave that human body reflects after radar detected module IC2 internal circuit is processed, the 2nd pin output terminal of radar detected module IC2 can be exported a low level signal about about 10s of duration, this signal is after triode VT2 amplifies, the output high level signal, the 26th pin I/O port that this signal is input to single-chip microcomputer IC4 also is high level, after the comprehensive judgement of single-chip microcomputer IC4 internal processes, send data-signal by single-chip microcomputer IC4 to SN75176 communication interface chip IC3, after the conversion of SN75176 communication interface chip IC3 internal data, send alert data information to alarm host machine, show current warning address information through the inner configuration software of alarm host machine.

Form watchdog circuit by single-chip microcomputer IC4 and watchdog module IC5, form reset circuit by resistance R 5, capacitor C 4, can reset to IC4 the 9th pin and IC5 the 7th pin, prevent that single-chip microcomputer IC4 internal processes is in the endless loop state.

Above-described only is a preferred embodiment of the present utility model, can not limit the scope that the utility model is implemented, and every equalization of doing according to the utility model claim changes and decorates, and all should still belong in the scope that the utility model contains.

Claims

1. novel anti-theft supervisory system, it is characterized in that: comprise microwave testing circuit (1), touch induction circuit (2) and single chip machine controlling circuit (3), described microwave testing circuit (1) transfers to single chip machine controlling circuit (3) with the output signal of touch induction circuit (2), the control of the output signal of single chip machine controlling circuit (3) is sent to RS485 communication interface circuit (31), described single chip machine controlling circuit (3) also with watchdog circuit (5) bidirectional data communication.

2. a kind of novel anti-theft supervisory system according to claim 1, it is characterized in that: described microwave testing circuit (1) gathers microwave signal by the antenna Y1 of radar detected module IC2 and connection thereof, and the output terminal of described radar detected module IC2 is connected with triode VT2.

3. a kind of novel anti-theft supervisory system according to claim 1 and 2, it is characterized in that: described touch induction circuit (2) is made of the trigger module IC1 that touches the connection of sheet metal A and output terminal thereof, and the output terminal of described trigger module IC1 also is connected with triode VT1.

4. a kind of novel anti-theft supervisory system according to claim 1 and 2, it is characterized in that: described RS485 communication interface circuit (31) is connected to alarm host machine by SN75176 communication interface chip IC3.