CN214376563U - Anti-dismantling anti-theft electronic tag based on circuit closed loop - Google Patents

Abstract

The utility model discloses an anti-dismantling and anti-theft electronic tag based on a circuit closed loop, which comprises an electronic tag device, a first anti-dismantling line and a second anti-dismantling line, wherein the electronic tag device is bound on a controlled object through the first anti-dismantling line and the second anti-dismantling line; the electronic tag device comprises an anti-dismantling interface module, a power supply module, a radio frequency module and a master control MCU; the power supply module supplies power to the anti-disassembly interface module, the radio frequency module and the main control MCU respectively; the anti-disassembly interface module comprises a socket and a plug, the plug is connected with an I/O port of the main control MCU through a first anti-disassembly wire, the socket is grounded through a second anti-disassembly wire, and a power supply output end of the power supply module is connected between the plug and the I/O port of the main control MCU in parallel; the main control MCU is connected with the card reader through the radio frequency module. The utility model discloses a detection of plug and socket connection state judges whether electronic tags is destroyed to judge whether stolen by accuse thing, can guarantee property safety.

Description

Anti-dismantling anti-theft electronic tag based on circuit closed loop

Technical Field

The utility model relates to an electronic tags field, in particular to prevent tearing open theftproof electronic tags based on circuit closed loop.

Background

The RFID electronic tag is a long and common wireless radio frequency tag, the electronic tag serves as a data carrier and can play roles of identification, article tracking and information acquisition, the RFID electronic tag is connected with an external shell in a sticking or binding mode, and the common electronic tag is poor in protection performance. In the process of monitoring the movable property, the condition that articles are stolen after the electronic tag is detached easily occurs, and the stolen process cannot be effectively identified by the field card reader because the electronic tag is not damaged and the position is not shifted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a prevent tearing open theftproof electronic tags based on circuit closed loop.

The purpose of the utility model is realized through the following technical scheme:

an anti-tamper and anti-theft electronic tag based on a circuit closed loop comprises: the electronic tag device is bound to a controlled object through the first anti-detachment line and the second anti-detachment line;

the electronic tag device comprises an anti-dismantling interface module, a power supply module, a radio frequency module and a main control MCU;

the power supply module supplies power to the anti-disassembly interface module, the radio frequency module and the master control MCU respectively;

the anti-disassembly interface module comprises a socket and a plug, the plug is connected with an I/O port of the main control MCU through the first anti-disassembly wire, the socket is grounded through the second anti-disassembly wire, and a power supply output end of the power supply module is connected between the plug and the I/O port of the main control MCU in parallel;

the main control MCU is connected with the card reader through the radio frequency module.

Optionally, the electronic label device further comprises a waterproof component;

the waterproof component is provided with an accommodating cavity;

the movement circuit of the electronic label device is arranged in the accommodating cavity;

and a first hole for allowing the first anti-detachment line to pass through and a second hole for allowing the second anti-detachment line to pass through are formed in two side walls of the waterproof component.

Optionally, the waterproof component further comprises a waterproof cover plate;

the waterproof cover plate is rotatably connected with the side edge of the accommodating cavity.

Optionally, an elastic sheet is disposed at the boundary of the inner surface of the waterproof cover plate.

Optionally, the first and second tamper evident cords employ RVV cables.

The utility model has the advantages that: the anti-dismantling and anti-theft electronic tag based on the circuit closed loop comprises an electronic tag device, a first anti-dismantling line and a second anti-dismantling line, the electronic tag device is bound to a controlled object through the first anti-dismantling line and the second anti-dismantling line, the electronic tag device comprises an anti-dismantling interface module, a power supply module, a radio frequency module and a main control MCU, when the electronic tag is in a working state, whether a socket and a plug are connected or not is judged, the main control MCU detects the potential state of the anti-dismantling interface and transmits the potential state to the radio frequency module, the radio frequency module sends the potential state to a card reader, the card reader uploads the potential state to a management system, and therefore a worker can judge whether the electronic tag is damaged or not according to the potential states of the plug and the socket, and property safety is ensured.

Drawings

Fig. 1 is a schematic structural view of an anti-tamper and anti-theft electronic tag based on a circuit closed loop according to an embodiment of the present invention;

fig. 2 is a circuit diagram of a main control MCU of the electronic tag device according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a waterproof member according to an embodiment of the present invention;

fig. 4 is a circuit diagram of a power supply module of an electronic tag device according to an embodiment of the present invention;

fig. 5 is a circuit diagram of a radio frequency module of an electronic tag device according to an embodiment of the present invention;

fig. 6 is a circuit diagram of a status indicator light of an electronic label device according to an embodiment of the present invention;

fig. 7 is a circuit diagram of the anti-tamper interface module of the electronic tag device according to the embodiment of the present invention.

In the figure, 1, an electronic label device; 2. a first anti-ravel seam; 3. second anti-ravel stitches; 4. a plug; 5. a socket; 6. a waterproof member; 7. an accommodating chamber; 8. a first hole; 9. a second hole; 10. a waterproof cover plate; 11. an elastic sheet.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-7, the utility model provides a technical scheme: the anti-dismantling and anti-theft electronic tag based on the circuit closed loop comprises: the electronic tag device comprises an electronic tag device 1, a first anti-detachment line 2 and a second anti-detachment line 3, wherein the electronic tag device 1 is bound on a controlled object through the first anti-detachment line 2 and the second anti-detachment line 3; the electronic tag device 1 comprises an anti-dismantling interface module, a power supply module, a radio frequency module, a status indicator lamp and a main control MCU; the power supply module is used for supplying power to the plug 4, the socket 5, the indicator light, the radio frequency module and the main control MCU which are used for preventing the interface module from being disassembled. The anti-disassembly interface module comprises a socket 5 and a plug 4, the plug 4 is connected with an I/O port of the main control MCU through the first anti-disassembly wire 2, the socket 5 is grounded through the second anti-disassembly wire 3, and a power supply output end of the power supply module is connected between the plug 4 and the I/O port of the main control MCU in parallel; the main control MCU is connected with the card reader through the radio frequency module.

As shown in fig. 2, which is a circuit diagram of the main control MCU, the plug is connected to an I/O port of the main control MCU through a first tamper line, and the socket is grounded through a second tamper line, so as to obtain a potential state of the tamper interface, when the plug and the socket are connected, as shown in fig. 7, P3 is at a high level, and when the plug and the socket are disconnected, P3 is at a low level.

As shown in fig. 4, a power supply module circuit diagram is provided, and the power supply module supplies power to the tamper interface, the radio frequency module, and the main control MCU respectively. The electrical characteristics of the power supply module are shown in the following table:

quiescent current	Less than 1 muA
		Operating current	Less than 15mA
Battery operating life	And 3-5 years at normal temperature.
		Parameters of battery	1800mAh cylindrical battery

The electronic tag device further comprises a status indicator lamp, and when the power supply module supplies power to the status indicator lamp, the status indicator lamp displays different indicator lamps according to the status of the electronic tag device. As shown in fig. 6, is a circuit diagram of a status indicator lamp.

The master control MCU of the electronic tag device sends the potential state to the radio frequency module, as shown in FIG. 5, the master control MCU is a circuit diagram of the radio frequency module, the radio frequency module can actively send a radio signal to a special card reader, the card reader uploads the read information to the management system, and a manager can acquire the information of the electronic tag device in real time, so that the manager can know the state of a target object in time, and various economic losses caused by the loss of the object due to the fact that the electronic tag device is damaged are avoided.

Rfid is a wireless communication technology that can identify a specific target and read and write related data by radio signals without establishing mechanical or optical contact between the identification system and the specific target.

The radio signal is used to transmit data from the tag attached to the article by means of an electromagnetic field modulated at a radio frequency to automatically identify and track the article. Some tags can obtain energy from the electromagnetic field emitted by the identifier during identification, and do not need a battery; there are also tags that have their own power source and can actively emit radio waves (electromagnetic fields tuned to radio frequencies). The tag contains electronically stored information that can be identified within a few meters. Unlike bar codes, radio frequency tags need not be in the line of sight of the identifier, but can be embedded within the tracked object.

The microwave link characteristics of the rf module are shown in the following table:

signal modulation mode	GFSK
		Communication rate	Bidirectional 1024Kbit/s
Frequency of operation	2.45GHz
		Maximum output power	7dbm
Bit error rate	10-9

The embodiment of the utility model provides a prevent tearing open theftproof electronic tags's identification distance based on circuit closed loop is 80m at the farthest to have advanced anticollision plan, can discern the sign more than 200/second simultaneously. The highest recognition speed is 100 km/h. And through encryption algorithm and authentication, data security is ensured, and link eavesdropping and data cracking are prevented. Both directional and non-directional recognition can be achieved.

The physical characteristics of the anti-dismantling and anti-theft electronic tag based on the circuit closed loop are shown in the following table:

shell material	High-temperature modified ABS plastic
		Type of label	Anti-disassembly type
Plastic shell shape	76*44*18(mm)
		Without weight against taking-out	35 g
Colour(s)	White colour
		Protection class	IP43

As shown in fig. 7, the circuit diagram of the tamper interface is shown, the tamper interface includes a plug and a socket, the plug is connected to the I/O port of the main control MCU through a first tamper line, the socket is grounded through a second tamper line, the power supply output terminal of the power supply module is connected in parallel between the plug and the I/O port of the main control MCU, the socket and the plug are authorized within one minute by the card reader or the handheld device, and at this time, the system reads the state of the electronic tag device and displays the state as a normal state. If the socket and the plug are separated in the working process, the electronic tag device read by the card reader is in a disassembled state in real time, then the plug and the socket are connected together, and if the electronic tag device is not authorized, the electronic tag device is in the disassembled state all the time. When the electronic tag is in a detached state and needs to be activated, the electronic tag is automatically in a configuration state when the plug and the socket are connected together, and waits for receiving configuration information from the card reader. And sending an authorization command by using the card reader, and when the electronic tag receives the authorization command, removing the detached state and entering a normal activation state.

As shown in fig. 3, the electronic label device further includes a waterproof member 6, an accommodating cavity 7 is provided on the waterproof member 6, and the electronic label device 1 is disposed in the accommodating cavity 7; a first hole 8 for passing the first tamper evident stitch 2 and a second hole 9 for passing the second tamper evident stitch 3 are provided on both side walls of the flashing member 6.

In order to avoid the electronic tag device from being incapable of working normally due to water entering the electronic tag device, a waterproof part is added outside the electronic tag device, so that the electronic tag device is subjected to waterproof treatment.

The waterproof component 6 further comprises a waterproof cover plate 10, the waterproof cover plate 10 is rotatably connected with the side edge of the accommodating cavity 7, and an elastic sheet 11 is arranged on the boundary of the inner surface of the waterproof cover plate 10.

The elastic sheet is arranged at the inner boundary of the waterproof cover plate, so that the electronic tag device is protected against collision.

The first and second tamper evident stitches 2, 3 are RVV cables.

The RVV electric wire is also called a light polyvinyl chloride sheath flexible wire, commonly called a flexible sheath wire, and is one of sheath wires.

The working environment temperature of the anti-dismantling and anti-theft electronic tag based on the circuit closed loop is-40 ℃ to +65 ℃, the working humidity is less than 85%, the storage temperature is-40 ℃ to +40 ℃, and the anti-electromagnetic interference is AM amplitude-modulated electromagnetic waves of 10V/m 0.1 to 1000 MHz.

The anti-dismantling and anti-theft electronic tag based on the circuit closed loop comprises an electronic tag device, a first anti-dismantling line and a second anti-dismantling line, the electronic tag device is bound to a controlled object through the first anti-dismantling line and the second anti-dismantling line, the electronic tag device comprises an anti-dismantling interface module, a power supply module, a radio frequency module and a main control MCU, when the electronic tag is in a working state, whether a socket and a plug are connected or not is judged, the main control MCU detects the potential state of the anti-dismantling interface and transmits the potential state to the radio frequency module, the radio frequency module sends the potential state to a card reader, the card reader uploads the potential state to a management system, and therefore a worker can judge whether the anti-dismantling and anti-theft electronic tag based on the circuit closed loop is damaged or not according to the potential states of the plug and the socket, and therefore the safety of property is ensured.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (5)

1. An anti-dismantling and anti-theft electronic tag based on a circuit closed loop is characterized by comprising an electronic tag device, a first anti-dismantling line and a second anti-dismantling line, wherein the electronic tag device is bound to a controlled object through the first anti-dismantling line and the second anti-dismantling line;

the electronic tag device comprises an anti-dismantling interface module, a power supply module, a radio frequency module and a main control MCU;

the power supply module supplies power to the anti-disassembly interface module, the radio frequency module and the master control MCU respectively;

the anti-disassembly interface module comprises a socket and a plug, the plug is connected with an I/O port of the main control MCU through the first anti-disassembly wire, the socket is grounded through the second anti-disassembly wire, and a power supply output end of the power supply module is connected between the plug and the I/O port of the main control MCU in parallel;

the main control MCU is connected with the card reader through the radio frequency module.

2. The tamper-resistant and theft-proof electronic tag based on the closed circuit loop as claimed in claim 1, wherein the electronic tag device further comprises a waterproof component;

the waterproof component is provided with an accommodating cavity;

the movement circuit of the electronic label device is arranged in the accommodating cavity;

and a first hole for allowing the first anti-detachment line to pass through and a second hole for allowing the second anti-detachment line to pass through are formed in two side walls of the waterproof component.

3. The electronic tag according to claim 2, wherein the waterproof member further comprises a waterproof cover plate;

the waterproof cover plate is rotatably connected with the side edge of the accommodating cavity.

4. The electronic tag according to claim 3, wherein an elastic piece is disposed at the boundary of the inner surface of the waterproof cover plate.

5. The electronic tag according to claim 1, wherein the first and second tamper-proof lines are RVV cables.

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