CN106600879B - A kind of electronic tag and theft preventing method based on multiple safety - Google Patents
A kind of electronic tag and theft preventing method based on multiple safety Download PDFInfo
- Publication number
- CN106600879B CN106600879B CN201710064393.6A CN201710064393A CN106600879B CN 106600879 B CN106600879 B CN 106600879B CN 201710064393 A CN201710064393 A CN 201710064393A CN 106600879 B CN106600879 B CN 106600879B
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- signal
- alarm
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- control unit
- theft
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Classifications
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- 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
- G08B13/2428—Tag details
- G08B13/2431—Tag circuit details
-
- 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
- G08B13/2428—Tag details
- G08B13/2434—Tag housing and attachment details
-
- 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
- G08B13/2428—Tag details
- G08B13/2448—Tag with at least dual detection means, e.g. combined inductive and ferromagnetic tags, dual frequencies within a single technology, tampering detection or signalling means on the tag
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Security & Cryptography (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention discloses a kind of electronic tags based on multiple safety; it include: control unit, voice signal alarm unit, light alarm unit, rope of tying, pinning, breaking protection unit, anti-theft signal detection unit, alarm signal Coded Discharge unit; the rear end of restricting of tying is connected with breaking protection unit input terminal, and the front end of restricting of tying is connected with pinning；Breaking protection unit, anti-theft signal detection unit, alarm signal Coded Discharge unit, voice signal alarm unit, light alarm unit are connected with control unit.The present invention can solve the problems, such as artificially to disconnect rope of tying, disconnect anti-theft tag power supply, destroy label mold shell, unauthorized releasings burglar alarm signal, different user anti-theft tag unlock it is general, using it is upper securely and reliably.Devise the control method of breaking protection, low battery detection, anti-theft signal detection, anti-theft signal Coded Discharge.
Description
Technical field
The present invention relates to a kind of electronic tag and theft preventing method based on multiple safety, belongs to data anti-theft technical field.
Background technique
The commodity being stored on the exploitation shelf of the places of business such as supermarket, market, such as footwear, there is quilts for clothes commodity
Illegally take the risk of place of business out of.Businessman often reduces this using measures such as monitoring, hanging electronic article surveillance tag objects
The operating loss of aspect.At present using it is commonplace be anti-theft fastener, existing anti-theft fastener consists of two parts, and a part is anti-
Button main body is stolen, biggish part, another part is bayonet unit, be can be inserted in anti-theft fastener main body.On the pole of bayonet unit
There are two pairs of little grooves, after bayonet unit is inserted into from anti-theft fastener bottom, four small iron shots in button, which will take advantage of a situation, slides into buckle
The position of device upper groove；And the iron hoop above iron shot firmly blocks them in a groove under the pressure of top spring.This
To again pull out bayonet unit from bottom, general brute-force can be does not accomplish sample.
But this mode is only suitable on footwear, clothing at present, using the antitheft pin structure of penetration type, when commodity ratio
It is more valuable, then commodity can be destroyed using aforesaid way, influence to sell.
Summary of the invention
Purpose: in order to overcome the deficiencies in the prior art, the present invention provides a kind of electronics mark based on multiple safety
Label and theft preventing method.
Technical solution: in order to solve the above technical problems, the technical solution adopted by the present invention are as follows:
A kind of electronic tag based on multiple safety, comprising: control unit, voice signal alarm unit, light alarm
Unit, rope of tying, pinning, breaking protection unit, anti-theft signal detection unit, alarm signal Coded Discharge unit, it is described to tie
Rope rear end is connected with breaking protection unit input terminal, and the front end of restricting of tying is connected with pinning；Breaking protection unit, anti-theft signal inspection
Unit, alarm signal Coded Discharge unit, voice signal alarm unit, light alarm unit is surveyed to be connected with control unit
It connects.
Further include: electric power detection unit, the electric power detection unit are connected with control unit.
Described control unit uses single-chip microcontroller.
The single-chip microcontroller for coordinated control anti-theft electronic tag work, for detect breaking protection, battery capacity detection,
Anti-theft signal detection, anti-theft signal Coded Discharge identify, audible ringing signal occurs, light alarm occurs.
The breaking protection unit normal conditions are energized state, are exported as high level, and the artificial binder thread that disconnects is alarm
State, detection stitch output is low level, triggers alarm signal.
The anti-theft signal detection unit generates resonance with RLC parallel circuit, and resonance signal is detected, RLC resonant circuit,
Low-pass filter circuit completes the detection of antitheft frequency signal, prompts robbed or burgled；Wherein L1 and C2 constitutes antiresonant circuit, one
End is connected with positive pole；Diode D1 one-way conduction；C3 and C4 filter capacitor；R3 and R4 voltage bias resistance；R5 is voltage
Pull-up resistor；Q2 alarm signal controls triode.
The alarm signal Coded Discharge unit sends encoded information by decoder and gives RLC resonance coil, resonance coil inspection
The alarm signal of intrinsic frequency is measured, anti-theft tag works normally at this time, after encoded information of the Programmable detection into anti-theft signal,
Compared with built-in authorization code, by then releasing alarm condition, otherwise long-time is alarmed.
The electric power detection unit detects the voltage value at battery both ends using analog signal detection module, when voltage is lower than 2.3V
When, system trigger alarm signal.
A kind of theft preventing method of the electronic tag based on multiple safety, includes the following steps:
Step 1: when control unit input pin P2 level signal is high level, program enters working condition.Into work
After making state, every 25S, control unit output pin P1 export 50% duty ratio 10KHZ frequency to light alarm unit pin
Signal, and 3 waves are executed, it is primary that purpose mainly allows lamp to dodge.
Step 2: it is more than 2 seconds when the variation of control unit input pin P2 level signal is low level, triggers electronic tag
Alarm is opened, control unit output pin P1 is exported with 50% duty ratio 5HZ frequency signal to light alarm unit pin, held
Row 8 times；After 1S, control unit output pin P1 exports 2KHZ, 800MS, 3.125KHZ, 300MS to audible alarm unit pin
Signal it is each primary；
Step 3: when control unit input pin P2 state changes into high level by low level, and high level is more than or equal to
2S, triggers break alarm, and control unit output pin P1 is exported simultaneously to light alarm unit, audible alarm unit pin
3.5K-3.9KHZ, output 100MS stop the signal that 50MS is recycled always.
Step 4: when super 1.6MS or more high level occurs in control unit input pin P2 level, intrinsic frequency is triggered
Signal alarm, 1 high level of every appearance, control unit output pin P1 export 3.5K-3.9KHZ, and output 200MS stops 100MS,
Circulation time is the signal of 1S；When high level between 1.2MS-1.6MS occurs in control unit input pin P2, alarm condition is normal
Time trigger, control unit output pin P1 export 3.5K- to light alarm unit, audible alarm unit pin simultaneously
3.9KHZ, output 200MS stop the cycle signal of 100MS.
Step 5: when control unit input pin P2 receives security door decoded signal, release alarm, system enter to
Machine state.
Step 6: when battery capacity is down to 2.3V, system trigger alarm signal, control unit output pin P1 is to optical signal
Alarm unit pin exports 50% duty ratio 10KHZ frequency and executes 3 waves, and time interval is the cycle signal of 1S.The utility model has the advantages that
A kind of electronic tag based on multiple safety provided by the invention, can solve artificially disconnect tie rope, disconnect anti-theft tag power supply,
Destroy label mold shell, unauthorized releasing burglar alarm signal, different user anti-theft tag unlock general problem, in use
Securely and reliably.Devise the control method of breaking protection, low battery detection, anti-theft signal detection, anti-theft signal Coded Discharge.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of anti-theft signal detection unit；
Fig. 3 is theft preventing method flow chart.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
As shown in Figure 1, a kind of electronic tag based on multiple safety, comprising: control unit, breaking protection unit, antitheft
Detecting signal unit, alarm signal Coded Discharge unit, electric power detection unit, voice signal alarm unit, light alarm list
Member.
Tie rear end of restricting is connected with breaking protection unit input terminal, and the front end of restricting of tying is connected with pinning, in use, will bundle
The reliable binding commodity of rope are tied up, pinning is inserted into anti-theft tag power end, and iron shot is pressed by the groove on pinning under spring force
Groove, in an ON state, rope of tying constitutes closed circuit with entire control panel to the power supply in electronic tag circuit at this time.
Control unit is using single-chip microcontroller as control core, coordinated control anti-theft electronic tag work, for detecting broken string
Protection, battery capacity detection, anti-theft signal detection, anti-theft signal Coded Discharge identifies, audible ringing signal occurs, optical signal report
It is alert to occur.
Breaking protection unit normal conditions are energized state, are exported as high level, and the artificial binder thread that disconnects is alarm condition,
Detecting stitch output is low level, triggers alarm signal.Buzzer issues 3.5-3.9KHZ frequency acoustic signal at this time, simultaneously
LED light exports the light signal of 3.5-3.9KHZ, prompts commodity robbed or burgled.
Anti-theft signal detection unit is emitted by gated detection unit, and anti-theft tag receives, and is generated altogether with RLC parallel circuit
Vibration, resonance signal are detected, and RLC resonant circuit, low-pass filter circuit complete the detection of antitheft frequency signal, are prompted robbed or burgled；Such as
Shown in Fig. 2, wherein L1 and C2 constitutes antiresonant circuit, and one end is connected with positive pole；Diode D1 one-way conduction；C3 and
C4 filter capacitor；R3 and R4 voltage bias resistance；R5 is voltage pull-up resistor；Q2 alarm signal controls triode；P2 is alarm
Signal output.When resonance frequency signal is detected more than 1.2ms, high level of every appearance then exports the sound of 3.5~3.9KHz
Sound and light alarm, time 200ms suspend 100ms, time 1s, generate pre-alarm；When resonance frequency signal detection is more than
When 1.6ms or more high level, alarm signal triggers for a long time, exports the sound and light alarm of 3.5~3.9KHz, time
200ms suspends 100ms.
Alarm signal Coded Discharge unit sends encoded information by decoder and gives RLC resonance coil, and resonance coil detects
The alarm signal of intrinsic frequency, anti-theft tag works normally at this time, and interior after encoded information of the Programmable detection into anti-theft signal
It sets authorization code to compare, by then releasing alarm condition, otherwise long-time is alarmed；The authorization of each enterprise is customizable, prevents out
Now encode similar and mixed situation.
Electric power detection unit detects the voltage value at battery both ends using analog signal detection module, when voltage is lower than 2.3V,
System trigger alarm signal, alarm form are flashing light, and rule is the 10Khz frequency execution 3 that optical signal exports 50% duty ratio
Wave, time interval 3s prevent the situation for artificially removing electronic anti-theft label power source.
Audible alarm unit uses buzzer, external triode biasing circuit.
Light alarm unit uses LED light, is directly accessed single-chip microcomputer output, low level is effective, and lamp is lighted.
As shown in figure 3, a kind of theft preventing method of the electronic tag based on multiple safety: including the following steps:
Step 1: when control unit input pin P2 level signal is high level, program enters working condition.Into work
After making state, every 25S, control unit output pin P1 export 50% duty ratio 10KHZ frequency to light alarm unit pin
Signal, and 3 waves are executed, it is primary that purpose mainly allows lamp to dodge.
Step 2: it is more than 2 seconds when the variation of control unit input pin P2 level signal is low level, triggers electronic tag
Alarm is opened, control unit output pin P1 is exported with 50% duty ratio 5HZ frequency signal to light alarm unit pin, held
Row 8 times；After 1S, control unit output pin P1 exports 2KHZ, 800MS, 3.125KHZ, 300MS to audible alarm unit pin
Signal it is each primary；
Step 3: when control unit input pin P2 state changes into high level by low level, and high level is more than or equal to
2S, triggers break alarm, and control unit output pin P1 is exported simultaneously to light alarm unit, audible alarm unit pin
3.5K-3.9KHZ, output 100MS stop the signal that 50MS is recycled always.
Step 4: when super 1.6MS or more high level occurs in control unit input pin P2 level, intrinsic frequency is triggered
Signal alarm, 1 high level of every appearance, control unit output pin P1 export 3.5K-3.9KHZ, and output 200MS stops 100MS,
Circulation time is the signal of 1S；When high level between 1.2MS-1.6MS occurs in control unit input pin P2, alarm condition is normal
Time trigger, control unit output pin P1 export 3.5K- to light alarm unit, audible alarm unit pin simultaneously
3.9KHZ, output 200MS stop the cycle signal of 100MS.
Step 5: when control unit input pin P2 receives security door decoded signal, release alarm, system enter to
Machine state.
Step 6: when battery capacity is down to 2.3V, system trigger alarm signal, control unit output pin P1 is to optical signal
Alarm unit pin exports 50% duty ratio 10KHZ frequency and executes 3 waves, and time interval is the cycle signal of 1S.
Course of work summary:
1, key is installed on the pcb board of electronic tag, after radio frequency identification tag package, key is pressed, at this time single-chip microcontroller
Pick-proof pin be in low potential, electronic tag works normally.When there is external force to open radio frequency identification tag package by force, key bullet
It rises, electronic tag alarm.
2, the syringe needle for rope of tying is inserted into after commodity to the anti-theft tag for being pierced by tieback and arriving first when the work of electronic tag
Pin hole in, under the action of the spring, will in anti-theft tag iron ball indentation stitch groove in, prevent from being pulled out.If pulled up
It ties the syringe needle of rope, needs dedicated equipment to suck back the iron ball of spring front, to unload anti-theft electronic tag from commodity.
3, warning circuit is as shown in Fig. 2, after electronic tag receives the alarm signal of external fixed frequency, coil L1 and
Capacitor C2 generates resonance, to form high potential signal in alarm signal input terminal P2；When detecting that alarm signal is continuously in
High potential for a period of time after, triggering single-chip microcontroller issue alarm signal；This high potential signal uses time width for foundation, can be artificial
Alarm signal pulse width range is set, the reliability of alarm condition is increased, avoids the rate of false alarm of pulse signal amplitude features high
Problem.
4, to avoid artificially releasing alarm signal using certain equipment, report is released using safer coding and decoding mode
Alert information.The own coding semaphore utilized issues the encoded signal being arranged, encoded signal and alarm signal same frequency, public
Alarm signal input terminal P2；After retrieving alarm signal and decoding, meets the own coding of enterprise of inner setting, then release
Alarm condition；Such mode avoids alarm release password between each enterprise from intersecting mixed drawback.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (3)
1. a kind of electronic tag based on multiple safety, comprising: control unit, voice signal alarm unit, light alarm list
Member, it is characterised in that: further include: rope of tying, pinning, breaking protection unit, anti-theft signal detection unit, alarm signal coding solution
Except unit, the rear end of restricting of tying is connected with breaking protection unit input terminal, and the front end of restricting of tying is connected with pinning；Breaking protection
Unit, anti-theft signal detection unit, alarm signal Coded Discharge unit, voice signal alarm unit, light alarm unit are equal
It is connected with control unit；
Further include: electric power detection unit, the electric power detection unit are connected with control unit；
Described control unit uses single-chip microcontroller；
The single-chip microcontroller works for coordinated control anti-theft electronic tag, and for detecting breaking protection, battery capacity detects, antitheft
Signal detection, anti-theft signal Coded Discharge identify, audible ringing signal occurs, light alarm occurs；
The breaking protection unit normal conditions are energized state, are exported as high level, and the artificial binder thread that disconnects is alarm condition,
Detecting stitch output is low level, triggers alarm signal；
The anti-theft signal detection unit generates resonance with RLC parallel circuit, and resonance signal is detected, RLC resonant circuit, low pass
Filter circuit completes the detection of antitheft frequency signal, prompts robbed or burgled；Wherein L1 and C2 constitute antiresonant circuit, one end with
Positive pole is connected；Diode D1 one-way conduction；C3 and C4 filter capacitor；R3 and R4 voltage bias resistance；R5 is voltage pull-up
Resistance；Q2 alarm signal controls triode；
The alarm signal Coded Discharge unit sends encoded information by decoder and gives RLC resonance coil, and resonance coil detects
The alarm signal of intrinsic frequency, anti-theft tag works normally at this time, and interior after encoded information of the Programmable detection into anti-theft signal
It sets authorization code to compare, by then releasing alarm condition, otherwise long-time is alarmed.
2. a kind of electronic tag based on multiple safety according to claim 1, it is characterised in that: the electric power detection list
Member detects the voltage value at battery both ends using analog signal detection module, when voltage is lower than 2.3V, system trigger alarm signal.
3. a kind of theft preventing method of electronic tag based on multiple safety according to claim 1 or 2, it is characterised in that:
Include the following steps:
Step 1: when control unit input pin P2 level signal is high level, program enters working condition；Into work shape
After state, every 25S, control unit output pin P1 export the letter of 50% duty ratio 10KHZ frequency to light alarm unit pin
Number, and 3 waves are executed, it is primary that purpose mainly allows lamp to dodge；
Step 2: being more than 2 seconds when the variation of control unit input pin P2 level signal is low level, and triggering electronic tag is opened
Alarm, control unit output pin P1 are exported to light alarm unit pin with 50% duty ratio 5HZ frequency signal, execute 8
It is secondary；After 1S, control unit output pin P1 exports 2KHZ, 800MS, 3.125KHZ, the letter of 300MS to audible alarm unit pin
It is number each primary；
Step 3: when control unit input pin P2 state changes into high level by low level, and high level is more than or equal to 2S, touching
Break alarm is sent out, control unit output pin P1 exports 3.5K- to light alarm unit, audible alarm unit pin simultaneously
3.9KHZ, output 100MS stop the signal that 50MS is recycled always；
Step 4: when super 1.6MS or more high level occurs in control unit input pin P2 level, intrinsic frequency signal is triggered
Alarm, 1 high level of every appearance, control unit output pin P1 export 3.5K-3.9KHZ, and output 200MS stops 100MS, recycles
Time is the signal of 1S；When there is high level between 1.2MS-1.6MS in control unit input pin P2, the alarm condition normal time
Triggering, control unit output pin P1 export 3.5K-3.9KHZ simultaneously to light alarm unit, audible alarm unit pin,
Output 200MS stops the cycle signal of 100MS；
Step 5: when control unit input pin P2 receives security door decoded signal, alarm is released, system enters standby shape
State；
Step 6: when battery capacity is down to 2.3V, system trigger alarm signal, control unit output pin P1 is to light alarm
Unit pin exports 50% duty ratio 10KHZ frequency and executes 3 waves, and time interval is the cycle signal of 1S.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710064393.6A CN106600879B (en) | 2017-02-04 | 2017-02-04 | A kind of electronic tag and theft preventing method based on multiple safety |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710064393.6A CN106600879B (en) | 2017-02-04 | 2017-02-04 | A kind of electronic tag and theft preventing method based on multiple safety |
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| CN106600879A CN106600879A (en) | 2017-04-26 |
| CN106600879B true CN106600879B (en) | 2019-04-16 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113611066A (en) * | 2021-08-20 | 2021-11-05 | 常州市亚森电子有限公司 | Conjoined anti-theft label |
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| Publication number | Publication date |
|---|---|
| CN106600879A (en) | 2017-04-26 |
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Denomination of invention: An electronic tag and anti-theft method based on multiple anti-theft Effective date of registration: 20220607 Granted publication date: 20190416 Pledgee: Industrial and Commercial Bank of China Limited Changzhou Economic Development Zone sub branch Pledgor: CHANGZHOU YASEN ELECTRONICS CO.,LTD. Registration number: Y2022980007214 |
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