CN106652294A - Testing device for antitheft system deactivator - Google Patents
Testing device for antitheft system deactivator Download PDFInfo
- Publication number
- CN106652294A CN106652294A CN201611195762.7A CN201611195762A CN106652294A CN 106652294 A CN106652294 A CN 106652294A CN 201611195762 A CN201611195762 A CN 201611195762A CN 106652294 A CN106652294 A CN 106652294A
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- China
- Prior art keywords
- circuit
- detection means
- receiving
- burglary
- resisting system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
- G08B13/2465—Aspects related to the EAS system, e.g. system components other than tags
- G08B13/2468—Antenna in system and the related signal processing
- G08B13/2477—Antenna or antenna activator circuit
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Automation & Control Theory (AREA)
- Computer Security & Cryptography (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention provides a testing device for an antitheft system deactivator. The testing device comprises a deactivating board and a first receiving circuit. The deactivating board is provided with a first receiving coil. The center frequency of the first receiving circuit is the pulse center frequency of the deactivator. The first receiving circuit comprises a band-pass filtering circuit, an amplifying circuit and a comparative output circuit, wherein the band-pass filtering circuit, the amplifying circuit and the comparative output circuit are successively cascaded. The first receiving coil is connected with the input end of the band-pass filtering circuit. The output end of the comparative output circuit is connected with a built-in timer and a controller with a capturing counting function. The testing device is also provided with a zero-point acquisition circuit and a commercial power transforming circuit. The input end of the zero-point acquisition circuit is connected with the output end of the commercial power transforming circuit. The output end of the zero-point acquisition circuit is connected with a controller. The testing device has advantages of conveniently and accurately testing a transmitting phase synchronization function of a deactivator host, preventing factory leaving of unqualified products, reducing debugging workload, testing and understanding a code energy amplitude and ensuring high consistency of factory leaving equipment.
Description
Technical field
The invention belongs to EAS fields, more particularly, to burglary-resisting system decoder detection means.
Background technology
EAS system is mainly made up of three parts：Detector（Sensor）, decoder（Deactivator）And electronic tag
（Electronic Label and Tag）.Electronic tag is divided into soft label and hard label, the softer mark of hard label nonrecurring cost
Sign high, but can reuse.Hard label must be equipped with special nail-fetching device, be used for the article that clothing is soft, easily penetrate.
Soft label cost is relatively low, is adhered directly to not reproducible be used compared with " hard " commodity, being punctured with decoder；Decoder is more
For contactless device, there is certain decoding height, when cashier's cash register or pack, electronic tag need not contact demagnetization region
That is decodable code.Not decoded commodity take away market, through detector means（Mostly gate-shaped）When, warning can be triggered, so as to
Cashier, customer and market security personnel is reminded to process in time.
AM decoder functions principle is mainly made up of transmitting coil and receiving coil, is sent out from transmitting coil to receiving coil
A cycle 58KHz pulse signal is penetrated, transmitting is made and is produced a field scan area between receiving.And anti-theft tag is actual former
It is " LC " clapp oscillator in reason（Refer to that inductance coil and capacitor are composed in parallel）, being made with special process makes it with decoding
Device equally produces the radio signal of a 58KHz.Due to the oscillation action of this radio signal, make between anti-theft antenna
There is a change in electromagnetic field scanning area, that is, make a signal that can produce warning using this change.Decoding
The decoding deck of device is installed on the table top of cashier, periodically the detection pulse of transmitting 58KHz, when detecting label signal
When, a decoded signal is sent, mainly there is a high-tension pulse signal, the voltage that this pulse signal occurs can be high
Up to more than 300 volts, the capacitor inside soft label relies on this voltage breakdown, and the electric capacity of soft label is after puncturing with regard to phase
When open-circuit condition is in its inductor, so cannot just produce signal.Hard label will not be killed due to electric capacity high pressure,
Can reuse, mainly be unlocked with lockaid gun.
The decoder of different manufacturers production, although that's about the size of it for principle, details is slightly different, such as transmitting detection arteries and veins
The opportunity of punching is just different, and the transmitting for causing the equipment is fallen in the reception window of other equipment, causes wrong report.This problem one
The after-sale service personnel of straight puzzlement company, cause the interference between like product, the wrong report of equipment, the difficulty of debugging.
There is a difference on the opportunity of the decoder transmitting detection pulse of different manufacturers production, sanctified by usage for " transmitting zero point ", is
Most of testing equipments on the market are adapted to, the transmitting zero point of equipment is adjustable, it requires production or even after sale
Installation personnel can skillfully adjust transmitting zero point, and required measuring instrument adopts oscillograph substantially, ensure what is dispatched from the factory by adjustment
Zero point be it is known, it is synchronous, but its operation is cumbersome.
The content of the invention
It is an object of the invention to overcome deficiency of the prior art, there is provided a kind of burglary-resisting system decoder detection means,
Decoder can quickly and easily be detected, it is to avoid defective work dispatches from the factory, reduce debugging work load.For this purpose, the present invention is using following
Technical scheme：
Burglary-resisting system decoder detection means, it is characterised in that it includes decoding deck, decoding deck is provided with the first receiving coil；It is described
Detection means is provided with the first receiving circuit, and the centre frequency of first receiving circuit is the pulse center frequency of the decoder
Rate, first receiving circuit includes the bandwidth-limited circuit for cascading successively, amplifying circuit and compares output circuit, wherein first
The input connection of receiving coil and bandwidth-limited circuit, compares the output end of output circuit with built-in timer and has seizure
The controller of tally function is connected, and the detection means is additionally provided with zero-detection circuit and civil power transforming circuit, and described zero
The input of point Acquisition Circuit and the output end connection of civil power transforming circuit, the output end and controller of the zero-detection circuit
It is connected.
The detection means is provided with the supporting construction of frequency element, and the decoding deck is additionally provided with the second receiving coil, described
Detection means is provided with the second receiving circuit, and the centre frequency of second receiving circuit is the decoding center frequency of the decoder
Rate, second receiving circuit includes the bandwidth-limited circuit for cascading successively, amplifying circuit and compares output circuit, wherein second
The input connection of receiving coil and bandwidth-limited circuit, the output end for comparing output circuit is connected with the controller.
First receiving circuit, zero-detection circuit, civil power transforming circuit and controller are arranged in shielding box.
First receiving circuit, zero-detection circuit, civil power transforming circuit, the second receiving circuit and controller are arranged on
In shielding box.
The supporting construction can be adjustably arranged on up and down on bar, and the detection means is provided with the latch fitting of supporting construction.
The supporting construction is also rotatably arranged on bar, to adjust the horizontal level of supporting construction.
Scale is set on the bar.
Support zone in the supporting construction is for working of plastics or with hole.
The detection plate and bar are arranged on drain pan.
The detection means is additionally provided with warning device, and the warning device is connected with the controller；The civil power becomes
Volt circuit also has the second tunnel to export, used as the power supply of detection means operation.
The present invention can easily and exactly play the synchronous function of detection decoder main frame transmitter, phase, it is to avoid not conform to
Lattice product dispatch from the factory, and debugging work load are reduced, while being also accompanied by testing decoding energy amplitude, it is ensured that go out the uniformity of plant.
Description of the drawings
Fig. 1 is the circuitry block schematic diagram of embodiment provided by the present invention.
Fig. 2 is the structural representation of embodiment provided by the present invention.
Fig. 3 is the Structure explosion diagram of embodiment provided by the present invention.
Specific embodiment.
Referring to the drawings.Burglary-resisting system decoder detection means provided by the present invention includes decoding deck 101, and decoding deck 1 sets
There is the first receiving coil L1；The detection means is provided with the first receiving circuit, and the centre frequency of first receiving circuit is
The pulse center frequencies of the decoder, first receiving circuit includes bandwidth-limited circuit, the amplifying circuit for cascading successively
With compare output circuit, wherein the first receiving coil and bandwidth-limited circuit input connection, compare the output of output circuit
End is with built-in timer and there is the controller for catching tally function to be connected, and the detection means is additionally provided with zero-detection circuit
And civil power transforming circuit, the input of the zero point Acquisition Circuit and the output end connection of civil power transforming circuit, the zero point
The output end of detection circuit is connected with controller.Drawing reference numeral 1 is controller, and drawing reference numeral 2 is transformer, and drawing reference numeral 4 is
Wave filter.
The detection means is additionally provided with the supporting construction 102 of frequency element, and the decoding deck is additionally provided with the second reception line
Circle, the detection means is provided with the second receiving circuit, and the centre frequency of second receiving circuit is the solution of the decoder
Code centre frequency, second receiving circuit is including the bandwidth-limited circuit, amplifying circuit for cascading successively and compares output circuit,
Wherein the input connection of the second receiving coil and bandwidth-limited circuit, compares the output end and the controller phase of output circuit
Even.
The civil power transforming circuit also has the second tunnel to export, and used as the power supply of detection means operation, the civil power becomes piezoelectricity
The second tunnel output on road is connected to the power units such as DC power supplier, controller and DC power supplier connection.Dc source
Adopt 79L12 voltage stabilizing chips to provide positive-negative power for operational amplifier in module, adopt LM2675 DC-DC power sources chip for control
Device processed and LED light buzzer（Warning device）Deng power supply.
The detection means is additionally provided with warning device 3, and it can be using buzzer and alarm lamp, the alarm and described
Controller is connected.
The detection means is additionally provided with communication module, and the communication module is connected by 232 serial ports with the controller,
Testing result can outwards be transmitted, communication module can be using wirelessly or non-wirelessly communication module.
The detection means is additionally provided with the human-computer interaction module with display screen, the human-computer interaction module and the control
Device is connected.Man-machine interaction part can have three LED lights 51, and a button 52, each button is pressed and terminates sentencing for last time
It is disconnected, then carry out new judgement once.
During detection, the label can adopt hard label with energy Reusability.
Relatively LM393 comparators can be adopted in output circuit.
Controller can adopt new Tang M0 series NUC160 single-chip microcomputers, be adopted using the seizure tally function of its built-in timer
Collection first connects pulse number of the receiving circuit in special time with civil power as reference zero, with number of pulses number to sentence
It is disconnected whether synchronous according to detection zero point, then test decoding energy with hard label（Decoding energy threshold value has been adjusted to suitably
Value）, comparator output pulse train, using interrupt mode realization judgement is caught, eventually through RS232 serial ports and main frame to be tested
Inner workings are checked in communication realization.
In the present invention, the bandwidth-limited circuit of the above, amplifying circuit and output circuit, zero point Acquisition Circuit, straight is compared
Stream power module, human-computer interaction module, communication module can adopt the conventional circuit with corresponding function.Drawing reference numeral 6 is
Master switch.
If the present invention is applied to the detection of sound magnetic detection system AM decoders, pulse center frequencies are generally 58KHz,
Decoding centre frequency is 3KHz.If the present invention is applied to the detection of RF detection system RF decoders, pulse center frequencies
Generally 8.2MHz.
The detection means is provided with shielding box 100, and first receiving circuit, zero-detection circuit, civil power become piezoelectricity
Road, the second receiving circuit, DC power supplier and controller are arranged in shielding box 100.
The supporting construction 102 can be adjustably arranged on up and down on bar 103, and the detection means is provided with supporting construction
102 latch fitting, such as, supporting construction is adjusted up and down after slip along bar, and supporting construction is locked on bar 103 with bolt and nut 105.
Arrange scale on the bar 103 to facilitate the operation of adjustment position.Support zone in the supporting construction is working of plastics or tool
There is hole 106, to avoid interference and shielded signal in detection.
The supporting construction is also rotatably arranged on bar, to adjust the horizontal level of the supporting construction 102, namely
The horizontal level for placing frequency element on the support structure is adjusted, the supporting construction can be connected by its anchor ear and bar, by
The bolt and nut 105 is locked.
Bar 103 and decoding deck 101 may be provided on drain pan 104.
Operating process is as follows：
1st, decoder main frame connecting line to be measured is connected, is powered to main frame, be powered to frock.
2nd, the back master switch 6 of test fixture is pressed, red LED power lights are lighted, is now holding state.
3rd, decoder host power supply to be measured is opened, and serial port connecting wire is connected.
4th, testing button 52 is pressed, takes hard label test on the embedded decoding deck of frock to report to the police in ensuing 5S, it is green
Color indicator lamp is lighted, buzzer yowl 3S, and it is qualified to represent（Synchronous, decoding energy, communication test passes through）
The underproof situation of test result has following several
A, transmitting are asynchronous, and buzzer sends the alarm sound of drop～drop～drop～～drop～drop～drop, while alarm lamp is bright,
Extinguish after 3S, buzzer is not named.
B, launch synchronization but be not detected by decoding energy, buzzer sends the alarm sound of drop～drop～～drop～drop,
Simultaneously alarm lamp is bright, extinguishes after 3S, and buzzer is not named.
C, launch synchronization and detect decoding energy, but communication failure, buzzer sends the alarm sound of drop～～drop,
Simultaneously alarm lamp is bright, extinguishes after 3S, and buzzer is not named.
It is analyzed by test result, according to the test fixture obtained designed by design detection can be functioned well as
The synchronous function of decoder main frame transmitter, phase, while being also accompanied by testing decoding energy amplitude, can communicate and check internal work
Make state, be very easy to scheduling and planning personnel.
Above-mentioned specific embodiment is used for illustrating the present invention, only the preferred embodiments of the present invention, rather than to this
Invention is limited, in the protection domain of spirit and claims of the present invention, any modification, the equivalent that the present invention is made
Replace, improve etc., fall within protection scope of the present invention.
Claims (10)
1. burglary-resisting system decoder detection means, it is characterised in that it includes decoding deck, decoding deck is provided with the first receiving coil；Institute
State detection means and be provided with the first receiving circuit, the centre frequency of first receiving circuit is the pulse center of the decoder
Frequency, first receiving circuit is including the bandwidth-limited circuit, amplifying circuit for cascading successively and compares output circuit, wherein the
The input connection of one receiving coil and bandwidth-limited circuit, compares the output end of output circuit with built-in timer and with catching
The controller for catching tally function is connected, and the detection means is additionally provided with zero-detection circuit and civil power transforming circuit, described
The input of zero point Acquisition Circuit and the output end connection of civil power transforming circuit, the output end of the zero-detection circuit and control
Device is connected.
2. burglary-resisting system decoder detection means as claimed in claim 1, it is characterised in that the detection means is provided with frequency
The supporting construction of element, the decoding deck is additionally provided with the second receiving coil, and the detection means is provided with the second receiving circuit, institute
The centre frequency for stating the second receiving circuit is the decoding centre frequency of the decoder, and second receiving circuit includes level successively
The bandwidth-limited circuit of connection, amplifying circuit and compare output circuit, wherein the input of the second receiving coil and bandwidth-limited circuit
End connection, the output end for comparing output circuit is connected with the controller.
3. burglary-resisting system decoder detection means as claimed in claim 1, it is characterised in that first receiving circuit, zero point
Detection circuit, civil power transforming circuit and controller are arranged in shielding box.
4. burglary-resisting system decoder detection means as claimed in claim 2, it is characterised in that first receiving circuit, zero point
Detection circuit, civil power transforming circuit, the second receiving circuit and controller are arranged in shielding box.
5. burglary-resisting system decoder detection means as claimed in claim 2, it is characterised in that the supporting construction can go up downward
Save land and be arranged on bar, the detection means is provided with the latch fitting of supporting construction.
6. burglary-resisting system decoder detection means as claimed in claim 5, it is characterised in that the supporting construction is also rotatable
Be arranged on bar, to adjust the horizontal level of supporting construction.
7. burglary-resisting system decoder detection means as claimed in claim 5, it is characterised in that scale is set on the bar.
8. burglary-resisting system decoder detection means as claimed in claim 2, it is characterised in that the support in the supporting construction
Position is for working of plastics or with hole.
9. burglary-resisting system decoder detection means as claimed in claim 2, it is characterised in that the detection plate and bar are respectively provided with
On drain pan.
10. burglary-resisting system decoder detection means as claimed in claim 1, it is characterised in that the detection means is additionally provided with
Warning device, the warning device is connected with the controller；The civil power transforming circuit also has the second tunnel to export, used as detection
The power supply of plant running.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611195762.7A CN106652294B (en) | 2016-12-22 | 2016-12-22 | Burglary-resisting system decoder detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611195762.7A CN106652294B (en) | 2016-12-22 | 2016-12-22 | Burglary-resisting system decoder detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106652294A true CN106652294A (en) | 2017-05-10 |
| CN106652294B CN106652294B (en) | 2019-04-30 |
Family
ID=58834602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611195762.7A Active CN106652294B (en) | 2016-12-22 | 2016-12-22 | Burglary-resisting system decoder detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106652294B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108470415A (en) * | 2018-03-12 | 2018-08-31 | 宁波讯强电子科技有限公司 | A kind of frame-type acoustic magnetic anti-theft label decoder and method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4160209A (en) * | 1977-07-01 | 1979-07-03 | Thompson Thomas F | Resonant circuit excitation method and apparatus |
| CN1509460A (en) * | 2002-03-11 | 2004-06-30 | ����� | Auto-phasing synchronization for pulsed electronic article surreillance system |
| CN1838192A (en) * | 2005-03-24 | 2006-09-27 | 郡是株式会社 | Tag detection device |
| CN2862213Y (en) * | 2005-11-04 | 2007-01-24 | 深圳蓉华电子有限公司 | Dactivate,activate and detecting device for electromagnetic wave anti-theft label |
| CN101297332A (en) * | 2005-09-09 | 2008-10-29 | 传感电子公司 | Electronic article monitoring system for providing synchronous transmission |
| CN101393595A (en) * | 2007-09-19 | 2009-03-25 | 深圳蓉华电子有限公司 | Electronic label detecting method for EAS |
| CA2408488C (en) * | 2000-05-08 | 2010-03-09 | Checkpoint Systems, Inc. | Radio frequency detection and identification system |
| CN106164992A (en) * | 2014-02-24 | 2016-11-23 | 泰科消防及安全有限公司 | EAS impulse ejection synchronizes |
| CN205810089U (en) * | 2016-07-19 | 2016-12-14 | 武汉奇点美信电子有限公司 | A kind of sound-magnetic electronic burglary-resisting system sync detection device |
-
2016
- 2016-12-22 CN CN201611195762.7A patent/CN106652294B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4160209A (en) * | 1977-07-01 | 1979-07-03 | Thompson Thomas F | Resonant circuit excitation method and apparatus |
| CA2408488C (en) * | 2000-05-08 | 2010-03-09 | Checkpoint Systems, Inc. | Radio frequency detection and identification system |
| CN1509460A (en) * | 2002-03-11 | 2004-06-30 | ����� | Auto-phasing synchronization for pulsed electronic article surreillance system |
| CN1838192A (en) * | 2005-03-24 | 2006-09-27 | 郡是株式会社 | Tag detection device |
| CN101297332A (en) * | 2005-09-09 | 2008-10-29 | 传感电子公司 | Electronic article monitoring system for providing synchronous transmission |
| CN2862213Y (en) * | 2005-11-04 | 2007-01-24 | 深圳蓉华电子有限公司 | Dactivate,activate and detecting device for electromagnetic wave anti-theft label |
| CN101393595A (en) * | 2007-09-19 | 2009-03-25 | 深圳蓉华电子有限公司 | Electronic label detecting method for EAS |
| CN106164992A (en) * | 2014-02-24 | 2016-11-23 | 泰科消防及安全有限公司 | EAS impulse ejection synchronizes |
| CN205810089U (en) * | 2016-07-19 | 2016-12-14 | 武汉奇点美信电子有限公司 | A kind of sound-magnetic electronic burglary-resisting system sync detection device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108470415A (en) * | 2018-03-12 | 2018-08-31 | 宁波讯强电子科技有限公司 | A kind of frame-type acoustic magnetic anti-theft label decoder and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106652294B (en) | 2019-04-30 |
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