CN203117434U - Safety check detecting instrument - Google Patents
Safety check detecting instrument Download PDFInfo
- Publication number
- CN203117434U CN203117434U CN 201320034421 CN201320034421U CN203117434U CN 203117434 U CN203117434 U CN 203117434U CN 201320034421 CN201320034421 CN 201320034421 CN 201320034421 U CN201320034421 U CN 201320034421U CN 203117434 U CN203117434 U CN 203117434U
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- circuit
- capacitor
- carrier wave
- safety check
- oscillation
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Abstract
The utility model relates to a safety check detecting instrument, which comprises an LC oscillation circuit and a single-chip microcomputer control circuit. The output signals of the LC oscillation circuit are transmitted to a carrier wave phase lock circuit and an alarm circuit through the single-chip microcomputer control circuit. The output signals of the carrier wave phase lock circuit are sent to a frequency selective amplifier circuit. The detecting instrument adopts the LC oscillation circuit to acquire metal signals. When metal objects are contained in luggage bags of a person, oscillation signals will be generated after the metal objects are detected through LC oscillation. Alarm signals are further sent after the single-chip microcomputer control circuit performs identification. The carrier wave signal circuit is then driven to send alarm signals to a carrier wave host. Remote monitoring is thus achieved. The detecting instrument can be widely used in public areas or safety protection gates, etc. for detecting dangerous materials with metal objects.
Description
Technical field
The utility model relates to a kind of detection instrument, particularly be a kind of safety check detection instrument.
Background technology
On the airport, personnel's places with dense such as harbour, station, exhibition center, need to survey human body and whether be with metal dangerous material such as controlled knife or rifle, but existing detection instrument complex structure, price is also high.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of simple in structure, cheap safety check detection instrument is provided.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of safety check detection instrument, comprise LC oscillatory circuit and single chip machine controlling circuit, the output signal of described LC oscillatory circuit transfers to carrier lock circuitry phase and warning circuit through single chip machine controlling circuit, and the output signal of described carrier lock circuitry phase is sent to the frequency-selecting amplifier circuit.
Preferably, described LC oscillatory circuit adopts the capacitor C 2 that is connected by telefault L1, L2 and output terminal thereof, the LC single-tube oscillator that potentiometer RP constitutes.
Preferably, the capacitor C 5 that connected by LM567 tone decoder IC2 and output terminal thereof of described carrier lock circuitry phase, the carrier wave multivibrator that resistance R 3 is formed constitute.
Preferably, described frequency-selecting amplifier circuit is made of elementary L3, capacitor C 6, the capacitor C7 of triode VT2, audio-frequency transformer (AFT) T, and is coupled on the AC network AC220V power lead to carrier wave main frame transmission alerting signal by secondary L4, the capacitor C 8 of audio-frequency transformer (AFT) T.
By adopting above-mentioned technical scheme, the beneficial effects of the utility model are: the utility model adopts the LC oscillatory circuit to gather metal signal, when there is metal baggages that people are with the inside, the LC vibration is surveyed metal object and is produced oscillator signal, after single chip machine controlling circuit identification, sends alerting signal, drive the carrier signal circuit, send alerting signal to the carrier wave main frame, realize remote monitoring, can be widely used in occasions such as public domain or security door for detection of the dangerous material that have metal object.
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
As shown in Figure 1 and Figure 2, a kind of safety check detection instrument of the present utility model, comprise LC oscillatory circuit 1 and single chip machine controlling circuit 2, the output signal of described LC oscillatory circuit 1 transfers to carrier lock circuitry phase 21 and warning circuit 22 through single chip machine controlling circuit 2, and the output signal of described carrier lock circuitry phase 21 is sent to frequency-selecting amplifier circuit 211.
The utility model metal detector is the circuit that tracks, with coil plane parallel be detected thing, and press close to mend survey thing and scan, described LC oscillatory circuit 1 adopts by telefault L1, the capacitor C 2 that L2 and output terminal thereof connect, the LC single-tube oscillator that potentiometer RP constitutes, when detecting coil detects metal, telefault L1, produce oscillation frequency between L2 and the capacitor C 2, this frequency is sent to the 16th pin I/O end of single-chip microcomputer IC1 through resistance R 1, after single-chip microcomputer IC1 internal processes is judged, by single-chip microcomputer IC1 the 18th pin output low level signal, promote news Chinese percussion instrument Y and send the alarm sound, illustrate that surveying thing has metal.
The capacitor C 5 that another road output is connected by LM567 tone decoder IC2 and output terminal thereof, the carrier wave multivibrator that resistance R 3 is formed constitutes carrier lock circuitry phase 21, its oscillation frequency is by capacitor C 5, the parameter of resistance R 3 determines, carrier frequency is adjusted in the 150-300KHZ scope, by triode VT2, the elementary L3 of audio-frequency transformer (AFT) T, capacitor C 6, capacitor C7 constitutes frequency-selecting amplifier circuit 211, the 12nd pin output high level signal by single-chip microcomputer IC1, make LM567 tone decoder IC2 obtain working power, LM567 tone decoder IC2 starts working, secondary L4 by audio-frequency transformer (AFT) T, capacitor C 8 is coupled on the AC network AC220V power lead and sends, send alerting signal to the carrier wave main frame, realize remote monitoring, can be widely used in occasions such as public domain or security door for detection of the dangerous material that have metal object.
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 (4)
1. safety check detection instrument, it is characterized in that: comprise LC oscillatory circuit (1) and single chip machine controlling circuit (2), the output signal of described LC oscillatory circuit (1) transfers to carrier lock circuitry phase (21) and warning circuit (22) through single chip machine controlling circuit (2), and the output signal of described carrier lock circuitry phase (21) is sent to frequency-selecting amplifier circuit (211).
2. safety check detection instrument according to claim 1 is characterized in that: the capacitor C 2 that described LC oscillatory circuit (1) employing is connected by telefault L1, L2 and output terminal thereof, the LC single-tube oscillator that potentiometer RP constitutes.
3. safety check detection instrument according to claim 1 is characterized in that: the capacitor C 5 that described carrier lock circuitry phase (21) is connected by LM567 tone decoder IC2 and output terminal thereof, the carrier wave multivibrator that resistance R 3 is formed constitute.
4. according to claim 1 or 3 described safety check detection instruments, it is characterized in that: described frequency-selecting amplifier circuit (211) is made of elementary L3, capacitor C 6, the capacitor C7 of triode VT2, audio-frequency transformer (AFT) T, and is coupled on the AC network AC220V power lead to carrier wave main frame transmission alerting signal by secondary L4, the capacitor C 8 of audio-frequency transformer (AFT) T.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320034421 CN203117434U (en) | 2013-01-17 | 2013-01-17 | Safety check detecting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320034421 CN203117434U (en) | 2013-01-17 | 2013-01-17 | Safety check detecting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203117434U true CN203117434U (en) | 2013-08-07 |
Family
ID=48897769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320034421 Expired - Fee Related CN203117434U (en) | 2013-01-17 | 2013-01-17 | Safety check detecting instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203117434U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109073775A (en) * | 2016-03-16 | 2018-12-21 | 桑斯特罗尼克简易股份公司 | The detection device of coefficient 1 and induction type |
-
2013
- 2013-01-17 CN CN 201320034421 patent/CN203117434U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109073775A (en) * | 2016-03-16 | 2018-12-21 | 桑斯特罗尼克简易股份公司 | The detection device of coefficient 1 and induction type |
| CN109073775B (en) * | 2016-03-16 | 2020-10-20 | 桑斯特罗尼克简易股份公司 | Coefficient 1 and inductive detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN XINLI DAHONG TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHANG YONGQING Effective date: 20141210 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Guijun Inventor before: Zhang Yongqing |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 362803 QUANZHOU, FUJIAN PROVINCE TO: 518109 SHENZHEN, GUANGDONG PROVINCE Free format text: CORRECT: INVENTOR; FROM: ZHANG YONGQING TO: ZHANG GUIJUN |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141210 Address after: 518109 Guangdong city of Shenzhen province Baoan District Longhua Street East West Street long loop Houhong Trade Industrial Area N building four floor North Branch Patentee after: Shenzhen Xinli Dahong Technology Co.,Ltd. Address before: Quangang District of Quanzhou City, Fujian province after the 362803 dragon Zhen Feng Village Patentee before: Zhang Yongqing |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20170117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |