CN106600879A - Electronic tag based on multiple means of anti-theft and anti-theft method - Google Patents
Electronic tag based on multiple means of anti-theft and anti-theft method Download PDFInfo
- Publication number
- CN106600879A CN106600879A CN201710064393.6A CN201710064393A CN106600879A CN 106600879 A CN106600879 A CN 106600879A CN 201710064393 A CN201710064393 A CN 201710064393A CN 106600879 A CN106600879 A CN 106600879A
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- Prior art keywords
- signal
- unit
- alarm
- theft
- control unit
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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 an electronic tag based on multiple means of anti-theft, comprising a control unit, a sound signal alarm unit, a light signal alarm unit, a binding rope, a lock pin, a breakage protection unit, an anti-theft signal detection unit, and an alarm signal decoding unit. The back end of the binding rope is connected with the input end of the breakage protection unit, and the front end of the binding rope is connected with the lock pin. The breakage protection unit, the anti-theft signal detection unit, the alarm signal decoding unit, the sound signal alarm unit and the light signal alarm unit are connected with the control unit. By using the electronic tag, the following problems are solved: a binding rope may be broken artificially; the power supply of an anti-theft tag may be cut off artificially; a tag mold shell may be destroyed artificially; the anti-theft alarm signal may be removed without authorization; and the anti-theft tags of different users can be unlocked in a universal way. The electronic tag is safe and reliable in use. A control method for breakage protection, low battery detection, anti-theft signal detection and anti-theft signal decoding is designed.
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 technology
Be stored in the places of business such as supermarket, market exploitation shelf on commodity, such as footwear, clothes commodity exist by
Illegally take the risk of place of business out of.Businessman often reduces this using measures such as monitoring, hanging electronic article surveillance tag things
The operating loss of aspect.At present using it is commonplace be anti-theft fastener, existing anti-theft fastener is made up of two parts, and a part is anti-
Button main body is stolen, larger part, another part is bayonet unit, in may be inserted into anti-theft fastener main body.On the pole of bayonet unit
There are two pairs of little grooves, after bayonet unit is inserted from anti-theft fastener bottom, the little iron shot of four in button will take advantage of a situation and slide into buckle
The position of device upper groove;And the iron hoop above iron shot is under the pressure of top spring, firmly they are blocked in a groove.This
Sample wants again to pull out bayonet unit from bottom, and general brute-force can be what is do not accomplished.
But, at present this mode is only suitable on footwear, clothing, using the antitheft pin structure of penetration type, when commodity ratio
It is more valuable, then commodity can be destroyed using aforesaid way, affect sale.
The content of the invention
Purpose:In order to overcome the deficiencies in the prior art, the present invention to provide a kind of electronics mark based on multiple safety
Sign and theft preventing method.
Technical scheme:To solve above-mentioned technical problem, the technical solution used in the present invention is:
A kind of electronic tag based on multiple safety, including:Control unit, voice signal alarm unit, light alarm unit,
Tie rope, pinning, breaking protection unit, anti-theft signal detector unit, alarm signal Coded Discharge unit, the rope rear end of tying
It is connected with breaking protection unit input, rope front end of tying is connected with pinning;Breaking protection unit, anti-theft signal detection are single
Unit, alarm signal Coded Discharge unit, voice signal alarm unit, light alarm unit are connected with control unit.
Also include:Electric power detection unit, the electric power detection unit is connected with control unit.
Described control unit adopts single-chip microcomputer.
The single-chip microcomputer be used for coordinate control anti-theft electronic tag work, for detect breaking protection, battery electric quantity detection,
Anti-theft signal detection, anti-theft signal Coded Discharge differentiate, audible ringing signal occurs, light alarm occurs.
The breaking protection unit normal conditions are "on" position, are output as high level, artificial to disconnect binder thread to report to the police
State, detection stitch is output as low level, triggers alarm signal.
The anti-theft signal detector unit produces resonance with RLC parallel circuits, and resonance signal is detected, RLC resonant circuits,
Low-pass filter circuit, completes the detection of antitheft frequency signal, points out robbed or burgled;Wherein L1 and C2 constitutes antiresonant circuit, one
End is connected with positive source;Diode D1 one-way conductions;C3 and C4 filter capacitors;R3 and R4 voltage bias resistance;R5 is voltage
Pull-up resistor;Q2 alarm signals control triode.
The alarm signal Coded Discharge unit, sends coding information and gives RLC resonance coils, resonance coil inspection by decoder
The alarm signal of intrinsic frequency is measured, now anti-theft tag normal work, after the coding information in Programmable detection to anti-theft signal,
Compare with built-in authorization code, by then releasing alarm condition, otherwise long-time is reported to the police.
The electric power detection unit detects the magnitude of voltage at battery two ends using analog signal detection module, when voltage is less than 2.3V
When, system trigger alarm signal.
A kind of theft preventing method of the electronic tag based on multiple safety, comprises the steps:
Step one:When control unit input pin P2 level signals are high level, program enters working condition.Into work shape
After state, per 25S, control unit output pin P1 exports the letter of 50% dutycycle 10KHZ frequency to light alarm unit pin
Number, and 3 ripples are performed, purpose mainly allows lamp to dodge once.
Step 2:Low level is turned to more than 2 seconds, trigger electronic tag when control unit input pin P2 level signals become
Open and report to the police, control unit output pin P1 to light alarm unit pin is exported with 50% dutycycle 5HZ frequency signal, is held
Row 8 times;After 1S, control unit output pin P1 to audible alarm unit pin exports 2KHZ, 800MS, 3.125KHZ, 300MS
Signal it is each once;
Step 3:When control unit input pin P2 states change into high level by low level, and high level is more than or equal to 2S, touches
Break alarm is sent out, control unit output pin P1 to light alarm unit, audible alarm unit pin export 3.5K- simultaneously
3.9KHZ, output 100MS stops the signal that 50MS is circulated always.
Step 4:When super more than 1.6MS high level occurs in control unit input pin P2 level, intrinsic frequency is triggered
, often there is 1 high level in signal alarm, and control unit output pin P1 output 3.5K-3.9KHZ, 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 triggered, control unit output pin P1 to light alarm unit, audible alarm unit pin export 3.5K- simultaneously
3.9KHZ, exports the cycle signal that 200MS stops 100MS.
Step 5:When control unit input pin P2 receives antitheft door decoded signal, release and report to the police, system is entered and treated
Machine state.
Step 6:When battery electric quantity as little as 2.3V, system trigger alarm signal, control unit output pin P1 is to optical signal
Alarm unit pin exports 50% dutycycle 10KHZ frequency and performs 3 ripples, and time interval is the cycle signal of 1S.Beneficial effect:
A kind of electronic tag based on multiple safety that the present invention is provided, it is possible to resolve it is artificial disconnect rope of tying, disconnection anti-theft tag power supply,
Destruction label mold shell, unauthorized releasing burglar alarm signal, different user anti-theft tag unlock general problem, using upper
It is safe and reliable.Devise breaking protection, low battery detection, anti-theft signal detection, the control method of anti-theft signal Coded Discharge.
Description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the structural representation of anti-theft signal detector unit;
Fig. 3 is theft preventing method flow chart.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of electronic tag based on multiple safety, including:It is 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
Unit.
Tie rope rear end be connected with breaking protection unit input, tie restrict front end be connected with pinning, when using, will tie
The reliable binding commodity of rope are tied up, pinning insertion anti-theft tag power end, the groove on pinning under spring force, iron shot is pressed into
Groove, now in an ON state, rope of tying constitutes closed-loop path to the power supply in electronic tag circuit with whole control panel.
Control unit, as control core, coordinates control anti-theft electronic tag work, for detecting broken string using single-chip microcomputer
Protection, battery electric quantity detection, anti-theft signal detection, the discriminating of anti-theft signal Coded Discharge, audible ringing signal generation, optical signal report
It is alert to occur.
Breaking protection unit normal conditions are "on" position, are output as high level, and the artificial binder thread that disconnects is alarm condition,
Detection stitch is output as low level, triggers alarm signal.Now buzzer sends 3.5-3.9KHZ frequency acoustic signals, while
LED exports the light signal of 3.5-3.9KHZ, points out commodity robbed or burgled.
Anti-theft signal detector unit is launched by gated detection unit, and anti-theft tag is received, and is produced altogether with RLC parallel circuits
Shake, resonance signal is detected, RLC resonant circuits, low-pass filter circuit, complete the detection of antitheft frequency signal, point out robbed or burgled;Such as
Shown in Fig. 2, wherein L1 and C2 constitutes antiresonant circuit, and its one end is connected with positive source;Diode D1 one-way conductions;C3 and
C4 filter capacitors;R3 and R4 voltage bias resistance;R5 is voltage pull-up resistor;Q2 alarm signals control triode;P2 is warning
Signal output.When resonance frequency signal detection is more than 1.2ms, often there is a high level, then export the sound of 3.5~3.9KHz
Sound and light alarm, time 200ms suspends 100ms, and the time is 1s, produces pre-alarm;When resonance frequency signal detection exceedes
During more than 1.6ms high level, alarm signal long-time is triggered, and exports the sound and light alarm of 3.5~3.9KHz, time
200ms, suspends 100ms.
Alarm signal Coded Discharge unit, sends coding information and detects to RLC resonance coils, resonance coil by decoder
The alarm signal of intrinsic frequency, now anti-theft tag normal work is and interior after the coding information in Programmable detection to anti-theft signal
Put authorization code to compare, by then releasing alarm condition, otherwise long-time is reported to the police;The mandate of each enterprise is customizable, prevents out
Now encode similar and mixed situation.
Electric power detection unit detects the magnitude of voltage at battery two ends using analog signal detection module, when voltage is less than 2.3V,
System trigger alarm signal, its alarm form is flashing light, and rule is the 10Khz frequencies execution 3 that optical signal exports 50% dutycycle
Ripple, time interval is 3s, prevents from artificially removing the situation of electronic anti-theft label power source.
Audible alarm unit adopts buzzer, external triode biasing circuit.
Light alarm unit adopts LED, is directly accessed single-chip microcomputer output, and Low level effective, lamp is lighted.
As shown in figure 3, a kind of theft preventing method of the electronic tag based on multiple safety:Comprise the steps:
Step one:When control unit input pin P2 level signals are high level, program enters working condition.Into work shape
After state, per 25S, control unit output pin P1 exports the letter of 50% dutycycle 10KHZ frequency to light alarm unit pin
Number, and 3 ripples are performed, purpose mainly allows lamp to dodge once.
Step 2:Low level is turned to more than 2 seconds, trigger electronic tag when control unit input pin P2 level signals become
Open and report to the police, control unit output pin P1 to light alarm unit pin is exported with 50% dutycycle 5HZ frequency signal, is held
Row 8 times;After 1S, control unit output pin P1 to audible alarm unit pin exports 2KHZ, 800MS, 3.125KHZ, 300MS
Signal it is each once;
Step 3:When control unit input pin P2 states change into high level by low level, and high level is more than or equal to 2S, touches
Break alarm is sent out, control unit output pin P1 to light alarm unit, audible alarm unit pin export 3.5K- simultaneously
3.9KHZ, output 100MS stops the signal that 50MS is circulated always.
Step 4:When super more than 1.6MS high level occurs in control unit input pin P2 level, intrinsic frequency is triggered
, often there is 1 high level in signal alarm, and control unit output pin P1 output 3.5K-3.9KHZ, 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 triggered, control unit output pin P1 to light alarm unit, audible alarm unit pin export 3.5K- simultaneously
3.9KHZ, exports the cycle signal that 200MS stops 100MS.
Step 5:When control unit input pin P2 receives antitheft door decoded signal, release and report to the police, system is entered and treated
Machine state.
Step 6:When battery electric quantity as little as 2.3V, system trigger alarm signal, control unit output pin P1 is to optical signal
Alarm unit pin exports 50% dutycycle 10KHZ frequency and performs 3 ripples, and time interval is the cycle signal of 1S.
The course of work is sketched:
1st, button is installed on the pcb board of electronic tag, after radio frequency identification tag package, button is pressed, now single-chip microcomputer is anti-
Sled pin is in electronegative potential, electronic tag normal work.When there is external force to open radio frequency identification tag package by force, button is upspring, electricity
Subtab is reported to the police.
2nd, the anti-theft tag that tieback is arrived will be passed after the syringe needle insertion commodity of rope of tying first during the work of electronic tag
Pin hole in, under the action of the spring, by anti-theft tag iron ball press-in stitch groove in, prevent from being pulled out.If pulled up
Tie the syringe needle of rope, need special equipment to suck back the iron ball of spring front, so as to unload anti-theft electronic tag from commodity.
3rd, warning circuit is as shown in Fig. 2 after electronic tag receives the alarm signal of external stability frequency, coil L1 and
Electric capacity C2 produces resonance, so as to form high potential signal in alarm signal input P2;It is continuously in when alarm signal is detected
High potential for a period of time after, triggering single-chip microcomputer send alarm signal;This high potential signal adopts time width for foundation, can be artificial
Setting alarm signal pulse width range, increases the reliability of alarm condition, it is to avoid the rate of false alarm of pulse signal amplitude features is high
Problem.
4th, to avoid artificially releasing alarm signal using certain equipment, report is released using safer coding and decoding mode
Alarming information.The own coding semaphore for utilizing sends the encoded signal for having arranged, encoded signal and alarm signal same frequency, public
Alarm signal input P2;After retrieving alarm signal and decoding, meet the own coding of enterprise of inner setting, then release
Alarm condition;This kind of mode avoids the drawbacks of alarm release password intersects mixed between each enterprise.
The above is only the preferred embodiment of the present invention, it should be pointed out that:For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of electronic tag based on multiple safety, including:Control unit, voice signal alarm unit, light alarm list
Unit, it is characterised in that:Also include:Rope, pinning, breaking protection unit, anti-theft signal detector unit, the alarm signal of tying encodes solution
Except unit, the rope rear end of tying is connected with breaking protection unit input, and rope front end of tying is connected with pinning;Breaking protection
Unit, anti-theft signal detector unit, alarm signal Coded Discharge unit, voice signal alarm unit, light alarm unit are equal
It is connected with control unit.
2. a kind of electronic tag based on multiple safety according to claim 1, it is characterised in that:Also include:Electricity is examined
Unit is surveyed, the electric power detection unit is connected with control unit.
3. a kind of electronic tag based on multiple safety according to claim 1 and 2, it is characterised in that:The control is single
Unit adopts single-chip microcomputer.
4. a kind of electronic tag based on multiple safety according to claim 3, it is characterised in that:The single-chip microcomputer is used for
Coordinate control anti-theft electronic tag work, for detecting breaking protection, battery electric quantity detection, anti-theft signal detection, anti-theft signal
Coded Discharge differentiates, audible ringing signal occurs, light alarm occurs.
5. a kind of electronic tag based on multiple safety according to claim 3, it is characterised in that:The breaking protection list
First normal conditions are "on" position, are output as high level, and the artificial binder thread that disconnects is alarm condition, and detection stitch is output as low electricity
It is flat, trigger alarm signal.
6. a kind of electronic tag based on multiple safety according to claim 3, it is characterised in that:The anti-theft signal inspection
Survey unit and resonance is produced with RLC parallel circuits, resonance signal is detected, and RLC resonant circuits, low-pass filter circuit complete antitheft
The detection of frequency signal, points out robbed or burgled;Wherein L1 and C2 constitutes antiresonant circuit, and its one end is connected with positive source;Two poles
Pipe D1 one-way conductions;C3 and C4 filter capacitors;R3 and R4 voltage bias resistance;R5 is voltage pull-up resistor;Q2 alarm signal controls
Triode processed.
7. a kind of electronic tag based on multiple safety according to claim 3, it is characterised in that:The alarm signal is compiled
Code lifting unit, sends coding information and detects the alarm signal of intrinsic frequency to RLC resonance coils, resonance coil by decoder
Number, now anti-theft tag normal work, after the coding information in Programmable detection to anti-theft signal, compares with built-in authorization code, leads to
Cross, release alarm condition, otherwise long-time is reported to the police.
8. a kind of electronic tag based on multiple safety according to claim 2, it is characterised in that:The electric power detection list
Unit detects the magnitude of voltage at battery two ends using analog signal detection module, when voltage is less than 2.3V, system trigger alarm signal.
9. a kind of theft preventing method of the electronic tag based on multiple safety, it is characterised in that:Comprise the steps:
Step one:When control unit input pin P2 level signals are high level, program enters working condition;Into work shape
After state, per 25S, control unit output pin P1 exports the letter of 50% dutycycle 10KHZ frequency to light alarm unit pin
Number, and 3 ripples are performed, purpose mainly allows lamp to dodge once;
Step 2:Low level is turned to more than 2 seconds, triggering electronic tag is opened when control unit input pin P2 level signals become
Report to the police, control unit output pin P1 to light alarm unit pin is exported with 50% dutycycle 5HZ frequency signal, performs 8
It is secondary;After 1S, control unit output pin P1 to audible alarm unit pin exports 2KHZ, the letter of 800MS, 3.125KHZ, 300MS
It is number each once;
Step 3:When control unit input pin P2 states change into high level by low level, and high level is more than or equal to 2S, touches
Break alarm is sent out, control unit output pin P1 to light alarm unit, audible alarm unit pin export 3.5K- simultaneously
3.9KHZ, output 100MS stops the signal that 50MS is circulated always;
Step 4:When super more than 1.6MS high level occurs in control unit input pin P2 level, intrinsic frequency signal is triggered
Report to the police, 1 high level often occur, control unit output pin P1 output 3.5K-3.9KHZ, output 200MS stops 100MS, circulates
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 to light alarm unit, audible alarm unit pin export 3.5K-3.9KHZ simultaneously,
Output 200MS stops the cycle signal of 100MS;
Step 5:When control unit input pin P2 receives antitheft door decoded signal, release and report to the police, system enters standby shape
State;
Step 6:When battery electric quantity as little as 2.3V, system trigger alarm signal, control unit output pin P1 is to light alarm
Unit pin exports 50% dutycycle 10KHZ frequency and performs 3 ripples, and time interval is the cycle signal of 1S.
Priority Applications (1)
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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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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 true CN106600879A (en) | 2017-04-26 |
CN106600879B CN106600879B (en) | 2019-04-16 |
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Cited By (1)
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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 |
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CN106600879B (en) | 2019-04-16 |
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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 |