CN202815238U - Security check detecting instrument - Google Patents
Security check detecting instrument Download PDFInfo
- Publication number
- CN202815238U CN202815238U CN 201220305317 CN201220305317U CN202815238U CN 202815238 U CN202815238 U CN 202815238U CN 201220305317 CN201220305317 CN 201220305317 CN 201220305317 U CN201220305317 U CN 201220305317U CN 202815238 U CN202815238 U CN 202815238U
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- circuit
- safety check
- output signal
- detection instrument
- signal
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Abstract
The utility model relates to a security check detecting instrument including a microwave infrared detection circuit, a metal detection circuit, and a one-chip microcomputer control circuit. The output signal of the microwave infrared detection circuit is transmitted to a signal amplification circuit, the output signal of the signal amplification circuit is transmitted to an RS485 communication interface circuit via the one-chip microcomputer control circuit, the output signal of the metal detection circuit is transmitted to a voice alarm circuit through the control of the one-chip microcomputer control circuit, and the one-chip microcomputer control circuit and a watchdog circuit are in a bidirectional data communication. When people goes through a security check device, the security check detecting instrument adopts a microwave detection module and a metal detection module, or other circuits to carry out the monitoring. When an abnormity is detected, the safety check detecting instrument sends an alarm, and the security is ensured by means of the present state of a computer, thereby ensuring the security of people's lives and properties.
Description
Technical field
The utility model relates to a kind of detection instrument, particularly be a kind of safety check detection instrument.
Background technology
In order to ensure people by bus and safety, on the airport, occasions such as railway stations, bus hub, the security staff tackles people and carries out safety check, and the safety check content comprises the monitorings such as metal object, toy.
The utility model content
The purpose of this utility model is providing a kind of safety check detection instrument.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of safety check detection instrument, comprise microwave-infrared testing circuit, metal detection circuit and single chip machine controlling circuit, the output signal of described microwave-infrared testing circuit transfers to signal amplification circuit, the output signal of signal amplification circuit is sent to the RS485 communication interface circuit through single chip machine controlling circuit control, the output signal of described metal detection circuit is sent to voice alarm circuit through single chip machine controlling circuit control, described single chip machine controlling circuit also with the watchdog circuit bidirectional data communication.
Preferably, described microwave-infrared testing circuit is made of the detector TQ that RD627 infrared module IC2 and output terminal thereof connect.
Preferably, described amplifying circuit adopts LM358 operational amplifier IC3.
Preferably, described metal detection circuit adopts inductance probe LB to gather metal signal, and the output terminal of described inductance probe LB is connected with the series circuit that capacitor C1, C2 consist of, and its output signal is through being connected with transistor Q1, Q2.
Preferably, described RS485 communication interface circuit is connected to the COM end of microcomputer by SN75176 communication interface chip IC5.
Preferably, described voice alarm circuit is made of the resistance R 8, photoelectrical coupler IC8, transistor Q3, speech chip IC6, LM386 note amplifier IC7 and the information ring device Y that connect successively.
By adopting above-mentioned technical scheme, the beneficial effects of the utility model are: when people cross safety check apparatus, the utility model is monitored by circuit such as Microwave Detector, metal detection modules, when having when unusual, send alarm, and by the computer current state, hold safe pass, ensure people's the security of the lives and property.
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 safety check detection instrument of the present utility model, comprise microwave-infrared testing circuit 1, metal detection circuit 2 and single chip machine controlling circuit 3, the output signal of described microwave-infrared testing circuit 1 transfers to signal amplification circuit 11, the output signal of signal amplification circuit 11 is sent to RS485 communication interface circuit 31 through single chip machine controlling circuit 3 controls, the output signal of described metal detection circuit 2 is sent to voice alarm circuit 32 through single chip machine controlling circuit 3 control, described single chip machine controlling circuit 3 also with watchdog circuit 4 bidirectional data communications.
Described microwave-infrared testing circuit 1 is made of the detector TQ that RD627 infrared module IC2 and output terminal thereof connect, described amplifying circuit 11 adopts LM358 operational amplifier IC3, when the hand baggage the inside has toy near detector TQ, RD627 infrared module IC2 detects the infrared induction signal, this signal is after LM358 operational amplifier IC3 amplifies, the 1st pin output high level by LM358 operational amplifier IC3, the 1st pin I/O end that this signal is input to single-chip microcomputer IC1 also is high level, after single-chip microcomputer IC1 internal processor is judged, by the 10th of single-chip microcomputer IC1,11, the 1st of 27 pin and SN75176 communication interface chip IC5,2,3,4 pin form RS485 communication interface circuit 31, by the 6th of SN75176 communication interface chip IC5,7 pin and system bus are connected to microcomputer,, be sent to SN75176 communication interface chip IC5 and show current warning message by system bus transmission microcomputer configuration software again the information that gathers by single-chip microcomputer IC1 output control data command.Instruct the security staff, unpacking further checks.
Described metal detection circuit 2 adopts inductance probe LB to gather metal signal, the output terminal of described inductance probe LB is connected with the series circuit that capacitor C1, C2 consist of, its output signal is through being connected with transistor Q1, Q2, regulator potentiometer R2 reduces feedback signal, make circuit be in the state of just starting of oscillation, resistor R2 is the base biasing resistor of transistor Q1, faint oscillator signal is delivered to by transistor Q2, is made it conducting by capacitor C, resistor R2, the 25th pin of single-chip microcomputer IC1 is the high level input end, judge no signal output through single-chip microcomputer IC1 internal processes.
The inductance probe LB of metal detector approaches as passenger with it or when in the luggage metal object being arranged, the oscillatory circuit failure of oscillation, there is not signal to pass through capacitor C, this signal is through capacitor C 4 couplings, resistance R 7 current limlitings are input to the 25th pin I/O of single-chip microcomputer IC1, be noble potential this moment, after single-chip microcomputer IC1 processor is judged, the 21st pin output high level of single-chip microcomputer IC1, make photoelectrical coupler IC8 conducting through resistance R 8, transistor Q3 also carries out conducting state, speech chip IC6 simultaneously, LM386 note amplifier IC7 respectively electric, the 2nd pin output audio signal by speech chip IC6, be input to the 3rd pin of LM386 note amplifier IC7 through capacitor C 5 coupling, through LM386 note amplifier IC7 is inner amplify after, by its 5th pin output audio signal, through capacitor C 7 coupling amplifications, promote information ring device Y and send the audio alert sound.
Form watchdog circuit by single-chip microcomputer IC1 and watchdog chip IC4, form reset circuit by resistance R 12, capacitor C 8, to the 9th pin of single-chip microcomputer IC1 and the 7th pin of watchdog chip IC4, prevent that single-chip microcomputer IC1 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 (6)
1. safety check detection instrument, it is characterized in that: comprise microwave-infrared testing circuit (1), metal detection circuit (2) and single chip machine controlling circuit (3), the output signal of described microwave-infrared testing circuit (1) transfers to signal amplification circuit (11), the output signal of signal amplification circuit (11) is sent to RS485 communication interface circuit (31) through single chip machine controlling circuit (3) control, the output signal of described metal detection circuit (2) is sent to voice alarm circuit (32) through single chip machine controlling circuit (3) control, described single chip machine controlling circuit (3) also with watchdog circuit (4) bidirectional data communication.
2. safety check detection instrument according to claim 1 is characterized in that: described microwave-infrared testing circuit (1) is made of the detector TQ that RD627 infrared module IC2 and output terminal thereof connect.
3. safety check detection instrument according to claim 1 and 2 is characterized in that: described amplifying circuit (11) employing LM358 operational amplifier IC3.
4. safety check detection instrument according to claim 1, it is characterized in that: described metal detection circuit (2) adopts inductance probe LB to gather metal signal, the output terminal of described inductance probe LB is connected with the series circuit that capacitor C1, C2 consist of, and its output signal is through being connected with transistor Q1, Q2.
5. safety check detection instrument according to claim 1 is characterized in that: described RS485 communication interface circuit (31) is connected to the COM end of microcomputer by SN75176 communication interface chip IC5.
6. safety check detection instrument according to claim 1 is characterized in that: described voice alarm circuit (32) is made of the resistance R 8, photoelectrical coupler IC8, transistor Q3, speech chip IC6, LM386 note amplifier IC7 and the information ring device Y that connect successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220305317 CN202815238U (en) | 2012-06-25 | 2012-06-25 | Security check detecting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220305317 CN202815238U (en) | 2012-06-25 | 2012-06-25 | Security check detecting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202815238U true CN202815238U (en) | 2013-03-20 |
Family
ID=47874096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220305317 Expired - Fee Related CN202815238U (en) | 2012-06-25 | 2012-06-25 | Security check detecting instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202815238U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833697A (en) * | 2015-05-21 | 2015-08-12 | 安徽启路达光电科技有限公司 | Desktop dangerous liquid security checker |
| CN104375198B (en) * | 2014-10-31 | 2016-09-14 | 成都市晶林科技有限公司 | Tooth bar protection rat hole safety check instrument |
| CN106405661A (en) * | 2016-11-08 | 2017-02-15 | 北京澳丰源科技股份有限公司 | Hand-held safety-check device and safety-check method |
| TWI753604B (en) * | 2020-10-14 | 2022-01-21 | 亞東技術學院 | Smart medical waste recycling bin |
-
2012
- 2012-06-25 CN CN 201220305317 patent/CN202815238U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104375198B (en) * | 2014-10-31 | 2016-09-14 | 成都市晶林科技有限公司 | Tooth bar protection rat hole safety check instrument |
| CN104833697A (en) * | 2015-05-21 | 2015-08-12 | 安徽启路达光电科技有限公司 | Desktop dangerous liquid security checker |
| CN106405661A (en) * | 2016-11-08 | 2017-02-15 | 北京澳丰源科技股份有限公司 | Hand-held safety-check device and safety-check method |
| TWI753604B (en) * | 2020-10-14 | 2022-01-21 | 亞東技術學院 | Smart medical waste recycling bin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20130625 |