CN101236681B - Commodity anti-theft device system and anti-theft method thereof - Google Patents
Commodity anti-theft device system and anti-theft method thereof Download PDFInfo
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- CN101236681B CN101236681B CN2008100599169A CN200810059916A CN101236681B CN 101236681 B CN101236681 B CN 101236681B CN 2008100599169 A CN2008100599169 A CN 2008100599169A CN 200810059916 A CN200810059916 A CN 200810059916A CN 101236681 B CN101236681 B CN 101236681B
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Abstract
The present invention provides a merchandise anti-theft device, which is provided with a lock structure which can be attracted by magnetic force and then unlocked, an electronic article monitoring marker, a microprocessor, a sound emitting alarm circuit, an output circuit for electronic article monitoring marker induction signals, as well as one, two or all of following circuits, namely a second signal generation circuit with a metal anti-theft rope as a connection switch, a third signal generation circuit with an anti-theft nail rod as a switch, and a fourth signal generation circuit provided with a switch which is pressed by a lock bolt in the lock structure or a lock structure component moving synchronously with the lock bolt or an anti-theft nail. The merchandise anti-theft device cangive alarms in time in case of illegal dismounting, improving the anti-theft function of the merchandise anti-theft device. The present invention also provides a decoder of the merchandise anti-theftdevice and a merchandise anti-theft device system comprising the merchandise anti-theft device and the decoder. The present invention also provides an anti-theft method of the merchandise anti-theft device, ensuring the merchandise anti-theft device has multiple anti-theft functions.
Description
Technical field
The present invention relates to a kind of anti-theft device of commodity and the theft preventing method of anti-theft device for commodities.
Background technology
Leave some commodity on the open shelf of places of business such as supermarket in, businessman is illegally taken out of the place of business in order to prevent them, often on these commodity, anti-theft device for commodities is set.Be provided with the electronic article surveillance tag thing in the anti-theft device; The electronic article surveillance tag thing is an inductive coil; When the stolen control door through the place of business of commodity; The electronic article surveillance tag thing receives pilot signal and responds to, and makes the warning device warning of anti-theft device self or the warning device of control door is reported to the police.Anti-theft device generally all has the Set Status that the lock construction that can be unblanked by attraction keeps anti-theft device for commodities and commodity.Anti-theft device takes different means and commodity to gather together according to the difference of commodity shape; Following means are roughly arranged: tie up or pass commodity with the antitheft rope; And after the antitheft rope binds or passes commodity; With the dead bolt in the above-mentioned lock construction encircling state is maintained, thereby anti-theft device is connected on the commodity; Pass commodity with antitheft nail, live at the another side of the commodity nail bar cramp of will guard against theft then, the clamping device of antitheft nail bar is remained on this clamped condition by above-mentioned lock construction after bar is followed closely in antitheft clamping; Use such as modes such as adopting clamping commodity, container storage commodity commodity and anti-theft device are gathered together, and make anti-theft device keep clamping, keep container closure with the dead bolt in the anti-theft device lock construction.When commercial articles vending, with the magnetic lockaid gun that businessman was equipped with lock construction is unblanked, thereby remove above-mentioned state, legally the removal anti-theft device.Sometimes, these means can be applied on the same anti-theft device for commodities whole or in part.However, along with evolving earlier of material, instrument, the lock construction of above-mentioned anti-theft device exists by other people with the risk that instrument is unblanked, and makes anti-theft device can not play due antitheft effect.
Summary of the invention
The present invention's technical matters at first to be solved provides a kind of anti-theft device for commodities that can in time report to the police during by illegal removal at anti-theft device for commodities.For this reason; The present invention adopts following technical scheme: it is provided with the lock construction that can be unblanked by attraction; Said commodity device also is provided with the output circuit of electronic article surveillance tag thing, first microprocessor, sounding alarm circuit, electronic article surveillance tag thing induced signal, and following circuit one of any or any two or all:
1), serve as the secondary signal generation circuit that connects switch with the metal anti-theft rope, secondary signal generation circuit is provided with a pair of tie point of restricting and being connected with metal anti-theft,
2), be the 3rd signal generating circuit of switch with the nail bar of antitheft nail,
3), the 4th signal generating circuit, said the 4th signal generating circuit has when lock construction is locked or when unblanking, the parts that are synchronized with the movement with dead bolt in dead bolt in the lock construction or lock construction compressing or by the switch of antitheft nail compressing
Foregoing circuit is connected with first microprocessor.
Owing to adopt technique scheme; No matter adopt compulsive means still to adopt instrument to the illegal removal of anti-theft device for commodities; Anti-theft device for commodities can both in time be reported to the police, and improves the anti-theft feature of anti-theft device for commodities, avoids being caused damage by illegal removal because of anti-theft device.
Another technical matters to be solved of the present invention provides a kind of demoder of above-mentioned anti-theft device for commodities.The present invention adopts following technical scheme for this reason: the wireless signal transmission circuit that it is provided with second microprocessor and is connected with second microprocessor, said wireless signal are to make the electronic article surveillance tag thing that the decoding wireless signal of induction take place.Owing to adopt technique scheme, can when commodity sold,, anti-theft device for commodities be removed legally report to the police through shirtsleeve operation, make the management place can be safely merchandising successfully.
Another technical matters to be solved of the present invention provides a kind of anti-theft device for commodities system that multiple anti-theft feature again might as well businessman be normally sold commodity that has.For this reason, the present invention adopts following technical scheme: it comprises anti-theft device for commodities and several the above-mentioned demoders that several are above-mentioned.Owing to adopt technique scheme; No matter adopt compulsive means still to adopt instrument to the illegal removal of anti-theft device for commodities; Anti-theft device for commodities can both in time be reported to the police, and improves the anti-theft feature of anti-theft device for commodities, avoids being caused damage by illegal removal because of anti-theft device.And when commodity are sold,, anti-theft device for commodities remove to be reported to the police legally through shirtsleeve operation, make the management place can be safely merchandising successfully.
The present invention also has a technical matters to be solved to provide a kind of theft preventing method of above-mentioned anti-theft device for commodities, makes anti-theft device for commodities have multiple anti-theft feature and might as well businessman normally sell commodity again.For this reason, the present invention adopts following technical scheme: it may further comprise the steps:
The signal of a, first microprocessor detected electrons article surveillance label induced signal output circuit; Judge that to respond to the signal of back output still be the signal that the electronic article surveillance tag thing signal that receives the emission of control door antenna is responded to back output to this signal for the electronic article surveillance tag thing receives decoded signal; Or the signal exported when not receiving the signal of decoded signal and control door antenna emission of electronic article surveillance tag thing; Respond to the signal that export the back like detected signal for the signal that the electronic article surveillance tag thing receives the emission of control door antenna, then make sounding alarm circuit sounding alarm;
B, first microprocessor detect secondary signal generation circuit, the 3rd signal generating circuit, the 4th signal generating circuit that is connected, and judge:
Whether secondary signal generation circuit has the metal anti-theft rope to break off pairing signal; Whether the 3rd signal generating circuit has the nail bar to break away from the pairing signal of the 3rd signal generating circuit, and whether the 4th signal generating circuit has said switch to be disengaged the pairing signal of compressing;
C, do not detect signal described in the b, then do not send the signal instruction that makes sounding alarm circuit sounding alarm like first microprocessor;
D, detect the arbitrary signal described in the b like first microprocessor; And first microprocessor detects the signal of signal for exporting after responding to because of electronic article surveillance tag thing reception decoded signal that first signal generating circuit takes place, and first microprocessor does not still send the signal instruction that makes sounding alarm circuit sounding alarm;
E, detect the arbitrary signal described in the b like first microprocessor; And it is the signal that the electronic article surveillance tag thing is exported when not receiving decoded signal that first microprocessor detects signal that first signal generating circuit takes place, and first microprocessor sends signal instruction and makes sounding alarm circuit sounding alarm.
Owing to adopt technique scheme; The present invention not only possesses the anti-theft feature of anti-theft device for commodities in the past, and, even anti-theft device for commodities is opened with instrument; If the instrument possessor does not decode to anti-theft device in advance; Anti-theft device for commodities still can be reported to the police, thereby prevents that other people from stealing commodity by illegal removal anti-theft device, and the anti-theft feature that increases anti-theft device improves anti-theft effect.
Description of drawings
Fig. 1 is the circuit theory synoptic diagram of anti-theft device for commodities embodiment provided by the present invention.
Fig. 2 is the circuit theory synoptic diagram of demoder embodiment provided by the present invention.
Fig. 3 is the control flow chart of first microprocessor in the anti-theft device for commodities of the present invention.
Fig. 4 is the physical construction synoptic diagram of anti-theft device for commodities embodiment provided by the present invention.
Fig. 5 is a decomposing schematic representation embodiment illustrated in fig. 4.
Embodiment
With reference to Fig. 4,5, the present invention is provided with the lock construction that can be unblanked by attraction, and this lock construction comprises can be by the stage clip 4 at the flexible lock core 3 of attraction and lock core 3 rears; The place ahead of lock core 3 is provided with conical cavity 5, is provided with the ball 6 that several can receive the conical cavity extruding in the lock core, and above structure all is arranged in the box body 7; In box body, also be provided with the circuit board B of anti-theft device, present embodiment also is provided with antitheft nail 2, and the antitheft nail passes commodity and inserts between the ball 6 in the lock core; When contact during to the magnetic attraction of flexible lock core 3, spring to sinciput, receives the extruding of conical cavity 5 with lock core; Ball 6 nail 2 the nail bar 20 of will guarding against theft is firmly clamped, and makes the anti-theft device nail on commodity.When unblanking, with attraction lock core 3 it is retreated at the rear of flexible lock core 3, then can remove the clamping of 6 pairs of nail bars 20 of ball, the antitheft nail can be drawn out of.
The present invention also is provided with antitheft rope 1 this antitheft rope metal and makes, and can pass the hole in the commodity or move or tie commodity.Make the connected mode of many weights of alarm and commodity.
With reference to accompanying drawing 1.Said commodity device also is provided with the output circuit 300 of electronic article surveillance tag thing 301, first microprocessor 100, sounding alarm circuit 200, electronic article surveillance tag thing induced signal, and following circuit one of any or any two or all:
1), serve as the secondary signal generation circuit 400 that connects switch with metal anti-theft rope 1, secondary signal generation circuit is provided with a pair of tie point 401,402 of restricting and being connected with metal anti-theft, drawing reference numeral 403 is a resistance.In the present embodiment, secondary signal generation circuit sends the signal generating circuit of high-frequency signal when being the disconnection of metal anti-theft rope.
2), be the 3rd signal generating circuit 500 of switch with the nail bar 20 of antitheft nail 2, the resistance that drawing reference numeral 501,502 is respectively on this circuit.Drawing reference numeral 503 is the pair of metal reed on this circuit that when nail bar 20 inserts, is in contact with it, and when following closely bar 20 and being inserted into, is in metal spring leaf between 503; Be equivalent to break off or connect circuit 500, extract and when breaking away from metal spring leaf 503, be equivalent to be switched on or switched off circuit 500; In Fig. 1, represent this reed switch structure with switch 504; In the present embodiment, when nail bar 20 was extracted, metal spring leaf contacted to 503; Circuit turn-on, the 3rd signal generating circuit send the signal generating circuit of high-frequency signal for this moment.
3), the 4th signal generating circuit 600, said the 4th signal generating circuit has when lock construction is locked or when unblanking, the parts that are synchronized with the movement with dead bolt in dead bolt in the lock construction or lock construction compressing or by the switch 601 of antitheft nail 2 compressings; In the present embodiment, switch 601 is oppressed by the head of a nail 21 of antitheft nail 2, the head of being oppressed by the head of a nail 21 that drawing reference numeral 602 exposes for switch; When antitheft is bound after on the commodity; Switch 601 is pressed and circuit 600 conductings or disconnection, and when antitheft nail quilt sled, switch 601 is disengaged the aforesaid circuit that made by pressure and breaks off or conducting; In the present embodiment; When the antitheft nail was prized, switch 601 broke off, and the 4th signal generating circuit sends the signal generating circuit of high-frequency signal for this moment.The resistance that drawing reference numeral 603,604 is respectively in the circuit.In addition, according to the difference of anti-theft device, switch 601 also can be by other parts compressing.Such as in the container type alarm, promptly switch 601 can be the dead bolt compressing that is lockable container cover, or the parts that are synchronized with the movement with dead bolt in lock construction compressing; In folder formula alarm, switch 601 can be the dead bolt compressing that is lockable clip, or the parts that are synchronized with the movement with dead bolt in lock construction compressing; Switch 601 also can be by flexible lock core in the lock construction or the parts that are synchronized with the movement with it compressing.
Circuit 200,300,400,500,600 is connected with first microprocessor 100.In attaching Fig. 1 and 2, drawing reference numeral E representes all and the power supply position that joins that in Fig. 4,5, drawing reference numeral B representes to be provided with the circuit board of foregoing circuit, for the purpose of the drawing cleaning, has removed the components and parts on the circuit board B.
Microprocessor 100 can adopt single-chip microcomputer.Said anti-theft device also is provided with voltage detecting circuit 700; Said voltage detecting circuit is connected with first microprocessor; Play the whether sufficient effect of power supply that detects anti-theft device, be provided with voltage checking chip 701, triode 702, resistance 703,704,705 in the voltage detecting circuit 700.
Below in conjunction with accompanying drawing 1,5, circuit 200,300,700 is described respectively:
Sounding alarm circuit 200: drawing reference numeral 201 is a loudspeaker, and this circuit can adopt the common monolithic processor controlled voice drive circuit of using.In addition, warning circuit also can adopt luminous warning, also is provided with this luminous warning circuit among the present invention simultaneously, and this luminous warning circuit links to each other with single-chip microcomputer, and drawing reference numeral 202 is the light emitting diode on the luminous warning circuit.Luminous warning circuit and sounding alarm circuit 200 also can substitute mutually or exist simultaneously.
The output circuit 300 of electronic article surveillance tag thing induced signal: drawing reference numeral 302 is a triode, and drawing reference numeral 303 is an electric capacity, and drawing reference numeral 304 and 305 is resistance.Circuit 300 can adopt the common signal amplification circuit that is connected with single-chip microcomputer, and accompanying drawing 306 is for to be connected to the lead on the circuit with electronic article surveillance tag thing 301.
What secondary signal generation circuit 400 was corresponding is to adopt a wire rope handling or a rope bundle mode to be fixed on the anti-theft signal generation circuit on the commodity anti-theft device; What the 3rd signal generating circuit 500 was corresponding is to adopt the antitheft nail to pass commodity, will guard against theft at the another side of commodity then and follow closely the mode that bar cramp lives anti-theft device is fixed on the anti-theft signal generation circuit on the commodity; What the 4th signal generating circuit 600 was corresponding is that above-mentioned employing antitheft nail passes commodity; In the another side of the commodity nail bar cramp mode of living of will guarding against theft anti-theft device is fixed on the commodity then; And such as adopting modes such as clamping commodity, container storage commodity, and make anti-theft device keep the anti-theft signal generation circuit that commodity and anti-theft device are gathered together of clamping, maintenance container closure with dead bolt in the anti-theft device lock construction or the parts that are synchronized with the movement with it.These antitheft modes can all be applied on the same anti-theft device for commodities, also can select one or select two ground and be applied on the same anti-theft device for commodities, on the pairing anti-theft signal generation of the antitheft means circuit that does not adopt, and should be therefore and gap connects with conductor with it.The dead bolt of indication of the present invention is to be inserted into behind certain block piece or part in the block piece or part combination, and its shape and array configuration can be decided according to concrete application scenario.
Anti-theft device provided by the present invention not only can be applied in as in Fig. 4,5 the alarm; Also can be applicable in other alarm with lock construction, such as be contained in commodity in the container and pin container with the container type anti-theft device of guarding against theft, with clip connect commodity folder formula anti-theft device, tie commodity and rope formula anti-theft device of realizing connecting or the like with rope.
With reference to accompanying drawing 2.The demoder of anti-theft device for commodities provided by the present invention; The wireless signal transmission circuit 900 that it is provided with second microprocessor 800 and is connected with second microprocessor, said wireless signal are to make electronic article surveillance tag thing 301 that the decoding wireless signal of induction take place.Microprocessor 800 can adopt single-chip microcomputer.
After circuit was connected, single-chip microcomputer work produced the code signal of certain frequency, after amplifying through power amplification circuit, was outwards sent by antenna.In the present embodiment, the said wireless signal transmission circuit that is connected with second microprocessor is the high-frequency wireless signals radiating circuit.
Businessman can make demoder fixed equipment and be arranged on cashier in use, when customer payment, with electronic article surveillance tag thing process demoder; Perhaps demoder is transmitted to the electronic article surveillance tag thing; Anti-theft device is decoded, and the electronic article surveillance tag thing receives decoded signal and responds to the signal that corresponding frequencies is exported in the back, amplifies through circuit 200; Detect by single-chip microcomputer; And then unblank with the removal anti-theft device with the magnetic lockaid gun, demoder also can be made handheld device, so that the batch goods is once decoded.Above-mentioned anti-theft device for commodities and demoder have been formed the anti-theft device for commodities system, and businessman is when being equipped with, and demoder can be a plurality of according to operating personnel's quantity, and anti-theft device for commodities is put quantity also for a plurality of according to commodity.
Theft preventing method below in conjunction with 3 pairs of anti-theft devices provided by the present invention of accompanying drawing further describes:
When being in user mode, the power supply in the circuit board is connected all the time, and the two ends of metal anti-theft rope 1 are connected with tie point 401,402; Insert the antitheft nail; The contact of switch 601 is depressed, and circuit 600 is connected, and reed switch 504 is squeezed by shank 20 and opens simultaneously; Circuit 500 is in off-state, and this moment, single-chip microcomputer 100 was judged as anti-theft device entering guard mode.
The signal of a, first microprocessor detected electrons article surveillance label induced signal output circuit, judge that this signal is:
1), the electronic article surveillance tag thing receives decoded signal and responds to the signal of back output,
Still; 2), the electronic article surveillance tag thing receives the signal of control door antenna emission and responds to the signal that export the back; The control door of above indication be exactly the management place set prevent the outpost of the tax office that commodity are stolen; Which is provided with signal transmission circuit, when commodity stolen through control door through out-of-date, the electronic article surveillance tag thing in the anti-theft device on the commodity to the induced signal of control door signal also can monitored door receiving circuit receive; The device by control door instructed that makes control door perhaps be located at other place sends alerting signal
Or, 3), the signal exported when the electronic article surveillance tag thing does not receive the signal of decoded signal and control door antenna emission,
Respond to the signal that export the back like detected signal for the signal that the electronic article surveillance tag thing receives the emission of control door antenna; Represent that then commodity are stolen; By the amplifying circuit amplifying signal intensity in the circuit 300; Be judged as the signal that meets predeterminated frequency via single-chip microcomputer 100, the booster circuit boosted voltage in the phonation circuit drives hummer then and sounds.
B, first microprocessor detect secondary signal generation circuit, the 3rd signal generating circuit, the 4th signal generating circuit that is connected, and judge:
Whether secondary signal generation circuit has the metal anti-theft rope to break off pairing signal; Whether the 3rd signal generating circuit has the nail bar to break away from the pairing signal of the 3rd signal generating circuit; Whether the 4th signal generating circuit has said switch to be disengaged the pairing signal of compressing; In the present embodiment, these signals are high-frequency signal;
C, do not detect signal described in the b, then do not send the signal instruction that makes sounding alarm circuit sounding alarm like first microprocessor;
D, detect the arbitrary signal described in the b like first microprocessor; And first microprocessor detects the signal of signal for exporting after responding to because of electronic article surveillance tag thing reception decoded signal that first signal generating circuit takes place, and first microprocessor does not still send the signal instruction that makes sounding alarm circuit sounding alarm;
E, detect the arbitrary signal described in the b like first microprocessor; And it is the signal that the electronic article surveillance tag thing is exported when not receiving decoded signal that first microprocessor detects signal that first signal generating circuit takes place, and first microprocessor sends signal instruction and makes sounding alarm circuit sounding alarm.
Also promptly:
When the metal anti-theft rope was cut off, circuit 400 passed to high-frequency signal of single-chip microcomputer immediately, and single-chip microcomputer is judged as destructive alerting signal, and the booster circuit boosted voltage in the phonation circuit drives hummer then and sounds.
When sledge plays the head of a nail or otherwise makes the contact of switch 601 stretch out; Switch 601 is an open mode; Then circuit 600 is started working, and transmits a high-frequency signal and gives single-chip microcomputer, and single-chip microcomputer is judged as destructive alerting signal; Booster circuit boosted voltage in the phonation circuit drives hummer then and sounds.
Nail is directly extracted when guarding against theft; Reed switch 504 closures then, no matter whether switch 601 is opened or closed, circuit 500 is all started working; Pass to high-frequency signal of single-chip microcomputer simultaneously; Single-chip microcomputer is judged as destructive alerting signal, and the booster circuit boosted voltage in the phonation circuit drives hummer then and sounds.
Said step a comprises that also whether the output circuit of the electronic article surveillance tag thing induced signal that the first microprocessor detection is connected has signal, like no signal, sends signal instruction and makes sounding alarm circuit sounding alarm.
Claims (6)
1. anti-theft device for commodities; It is provided with the lock construction that can be unblanked by attraction; It is characterized in that said anti-theft device for commodities also is provided with the output circuit of electronic article surveillance tag thing, first microprocessor, sounding alarm circuit, electronic article surveillance tag thing induced signal, and following circuit one of any or all:
1), be the 3rd signal generating circuit of switch with the nail bar of antitheft nail,
2), the 4th signal generating circuit, said the 4th signal generating circuit has when lock construction is locked or when unblanking, the parts that are synchronized with the movement with dead bolt in dead bolt in the lock construction or lock construction compressing or by the switch of antitheft nail compressing,
Above-mentioned all circuit are connected with first microprocessor;
It is the secondary signal generation circuit that connects switch that said anti-theft device also is provided with the metal anti-theft rope, and secondary signal generation circuit is provided with a pair of tie point that is connected with the metal anti-theft rope, and secondary signal generation circuit is connected with first microprocessor;
When being disconnection, sends in said secondary signal generation circuit the signal generating circuit of high-frequency signal; Send the signal generating circuit of high-frequency signal when said the 3rd signal generating circuit is connection, said the 4th signal generating circuit is that the switch that said the 4th signal generating circuit has is disengaged the signal generating circuit of oppressing back transmission high-frequency signal.
2. a kind of anti-theft device for commodities as claimed in claim 1 is characterized in that it also is provided with voltage detecting circuit, and said voltage detecting circuit is connected with first microprocessor.
3. anti-theft device for commodities system; It is characterized in that it comprises the described anti-theft device for commodities of several claims 1; With several demoders; The wireless signal transmission circuit that said demoder is provided with second microprocessor and is connected with second microprocessor, said wireless signal are to make the electronic article surveillance tag thing that the decoding wireless signal of induction take place.
4. a kind of anti-theft device for commodities as claimed in claim 3 system is characterized in that the said wireless signal transmission circuit that is connected with second microprocessor is the high-frequency wireless signals radiating circuit.
5. the theft preventing method of the said anti-theft device for commodities of claim 1 is characterized in that it may further comprise the steps:
The signal of a, first microprocessor detected electrons article surveillance label induced signal output circuit; Judge that to respond to the signal of back output still be the signal that the electronic article surveillance tag thing signal that receives the emission of control door antenna is responded to back output to this signal for the electronic article surveillance tag thing receives decoded signal; Or the signal exported when not receiving the signal of decoded signal and control door antenna emission of electronic article surveillance tag thing; Respond to the signal that export the back like detected signal for the signal that the electronic article surveillance tag thing receives the emission of control door antenna, then make sounding alarm circuit sounding alarm;
B, first microprocessor detect secondary signal generation circuit, the 3rd signal generating circuit, the 4th signal generating circuit that is connected, and judge:
Whether secondary signal generation circuit has the metal anti-theft rope to break off pairing signal; Whether the 3rd signal generating circuit has the nail bar to break away from the pairing signal of the 3rd signal generating circuit, and whether the 4th signal generating circuit has said switch to be disengaged the pairing signal of compressing;
C, do not detect signal described in the b, then do not send the signal instruction that makes sounding alarm circuit sounding alarm like first microprocessor;
D, detect the arbitrary signal described in the b like first microprocessor; And first microprocessor detects the signal of electronic article surveillance tag thing induced signal output circuit output for responding to the signal that export the back because of the electronic article surveillance tag thing receives decoded signal, and first microprocessor does not still send the signal instruction that makes sounding alarm circuit sounding alarm;
E, detect the arbitrary signal described in the b like first microprocessor; And it is the signal that the electronic article surveillance tag thing is exported when not receiving decoded signal that first microprocessor detects signal that first signal generating circuit takes place, and first microprocessor sends signal instruction and makes sounding alarm circuit sounding alarm.
6. the theft preventing method of the said anti-theft device for commodities of claim 5; It is characterized in that said step a comprises also whether the output circuit of the electronic article surveillance tag thing induced signal that the first microprocessor detection is connected has signal; Like no signal, send signal instruction and make sounding alarm circuit sounding alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100599169A CN101236681B (en) | 2008-03-03 | 2008-03-03 | Commodity anti-theft device system and anti-theft method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100599169A CN101236681B (en) | 2008-03-03 | 2008-03-03 | Commodity anti-theft device system and anti-theft method thereof |
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| Publication Number | Publication Date |
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| CN101236681A CN101236681A (en) | 2008-08-06 |
| CN101236681B true CN101236681B (en) | 2012-11-21 |
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| CN2008100599169A Active CN101236681B (en) | 2008-03-03 | 2008-03-03 | Commodity anti-theft device system and anti-theft method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015003438A1 (en) * | 2013-07-10 | 2015-01-15 | 上海蓓镭电子有限公司 | Multi-functional anti-theft device for goods |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376139A (en) * | 2010-08-27 | 2012-03-14 | 苏州市谷盈实业有限公司 | Anti-damage monitoring method and device of pulse type electronic fence |
| DE102014225067B3 (en) | 2014-12-05 | 2016-05-12 | Inventory Systems Gmbh | Goods holder with two signal generating means |
| CN110009852B (en) * | 2018-11-27 | 2021-03-09 | 杭州朗泽安防技术有限公司 | Monitoring device for commodity safety |
| CN110007621B (en) * | 2018-12-07 | 2021-08-31 | 杭州朗泽安防技术有限公司 | Touch control system, control device and monitoring device for commodity safety |
| CN109671237A (en) * | 2019-02-22 | 2019-04-23 | 深圳亿东科技股份有限公司 | A kind of commodity anti-theft method and the commodity anti-theft alarm based on this method |
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2008
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015003438A1 (en) * | 2013-07-10 | 2015-01-15 | 上海蓓镭电子有限公司 | Multi-functional anti-theft device for goods |
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| CN101236681A (en) | 2008-08-06 |
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