RFID electronic seal lock circuit

Abstract

The utility model relates to an RFID electronic seal lock circuit which comprises a controller, a positioning module, a data communication module, an RFID tag and a lock body driving module. The positioning module is connected with the controller and used for generating current position information and sending the current position information to the controller; the data communication module is connected with the controller and is used for receiving the position information sent by the controller and sending the position information to the terminal equipment; the RFID radio frequency tag is connected with the controller and is used for receiving a lock body control instruction generated by terminal equipment and sending the lock body control instruction to the controller, so that the controller generates a control level according to the lock body control instruction; the lock body driving module is connected with the controller and used for receiving the control level generated by the controller to drive the lock body to act. According to the utility model, double identity recognition of the equipment can be realized, and the data leakage risk of the equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic signatures, and more specifically to an RFID electronic signature blocking circuit. Background Art

[0002] Electronically sealed packaging bags are professional logistics equipment that use wireless radio frequency technology without built-in power supply and are applied to cloth bags and soft bags. They are integrated products of bagging and electronic signature sealing, which realize functions such as packaging and unpacking, information recording, batch scanning, circulation tracing, and abnormal alarm, and meet the requirements of safety management, precision, and efficiency. In practical applications, information can be written to realize the identification and control of logistics operation information, actual accounting, and tracking and verification requirements. Because the RFID electronic signature sealing ID value is not repeatable, the information cannot be modified. It needs to be operated with supporting special equipment, which is reusable, has fire prevention, moisture prevention, and mildew prevention measures, and can adapt to the environmental requirements of temperature, humidity, salt spray, etc. in different regions, so it is increasingly used.

[0003] At present, most of the signature locks used for electronically sealing packaging bags have low security, which makes information confidentiality poor, easily causes secret data leakage, and cannot prevent data input from illegal scanning devices. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an RFID electronic signature blocking circuit.

[0005] The technical solution adopted by the utility model to solve the technical problem is: constructing an RFID electronic signature blocking circuit, including: a controller and a positioning module, a data communication module, an RFID radio frequency tag and a lock body driving module;

[0006] The positioning module is connected to the controller and is used to generate current position information and send it to the controller;

[0007] The data communication module is connected to the controller and is used to receive the location information sent by the controller and send it to the terminal device;

[0008] The RFID radio frequency tag is connected to the controller, and is used to receive the lock body control instruction generated by the terminal device and send it to the controller, so that the controller generates a control level according to the lock body control instruction;

[0009] The lock body driving module is connected to the controller and is used to receive the control level generated by the controller to drive the lock body to move.

[0010] Preferably, in an embodiment of the RFID electronic signature blocking circuit described in the utility model, the blocking circuit further comprises: a power supply battery, a power supply monitoring module and a power prompt module;

[0011] The power supply monitoring module is connected to the controller and is used to monitor the power supply battery, generate a monitoring level according to the current power of the power supply battery and send the monitoring level to the controller, so that the controller generates a driving level according to the monitoring level;

[0012] The power prompt module is connected to the controller and is used to receive the driving level generated by the controller to generate power indication information.

[0013] Preferably, in an embodiment of the RFID electronic signature blocking circuit described in the utility model, the power supply monitoring module includes a first voltage monitoring circuit and a second voltage monitoring circuit;

[0014] The first voltage monitoring circuit is used to generate a first monitoring level when the power supply voltage of the power supply battery is not lower than a first threshold value, and otherwise generate a second monitoring level;

[0015] The second voltage monitoring circuit is used to generate a third monitoring level when the power supply voltage of the power supply battery is not lower than a second threshold value, otherwise generate a fourth monitoring level, and the second threshold value is less than the first threshold value;

[0016] The controller outputs a first drive level when receiving the first monitoring level, outputs a third drive level when receiving the fourth monitoring level, and outputs a second drive level when receiving the second monitoring level and the third monitoring level simultaneously;

[0017] The power prompt module generates first prompt information when receiving the first driving level, generates second prompt information when receiving the second driving level, and generates third prompt information when receiving the third driving level.

[0018] Preferably, in one embodiment of the RFID electronic signature blocking circuit described in the utility model, the first voltage monitoring circuit includes a low-voltage monitoring chip U10, a capacitor C33, a capacitor C32 and a resistor R79; the third pin and the fourth pin of the low-voltage monitoring chip U10 are connected to the first end of the capacitor C33 and the power supply battery, the fifth pin of the low-voltage monitoring chip U10 is connected to the first end of the capacitor C32, the first pin of the low-voltage monitoring chip U10 is connected to the first end of the resistor R79 and the twelfth pin of the controller, the second pin of the low-voltage monitoring chip U10, the second end of the capacitor C33 and the second end of the capacitor C32 are grounded, and the second end of the resistor R79 is connected to a supply voltage; and / or

[0019] The second voltage monitoring circuit includes a low-voltage monitoring chip U9, a capacitor C26, a capacitor C31 and a resistor R28; the third pin and the fourth pin of the low-voltage monitoring chip U9 are connected to the first end of the capacitor C26 and the power supply battery, the fifth pin of the low-voltage monitoring chip U9 is connected to the first end of the capacitor C31, the first pin of the low-voltage monitoring chip U9 is connected to the first end of the resistor R28 and the thirteenth pin of the controller, the second pin of the low-voltage monitoring chip U9, the second end of the capacitor C26 and the second end of the capacitor C31 are grounded, and the second end of the resistor R28 is connected to a supply voltage.

[0020] Preferably, in an embodiment of the RFID electronic signature blocking circuit described in the utility model, the power prompt module includes a light prompt circuit and / or a sound prompt circuit;

[0021] The light emitting prompt circuit is connected to the controller and is used to generate light emitting prompt information;

[0022] The sound prompt circuit is connected to the controller and is used to generate sound prompt information.

[0023] Preferably, in an embodiment of the RFID electronic signature blocking circuit described in the utility model, when the power prompt module includes the light-emitting prompt circuit, the light-emitting prompt circuit includes a first LED light circuit, a second LED light circuit and a third LED light circuit;

[0024] The first end of the first LED lamp circuit is connected to the first driving level output end of the controller for receiving the first driving level;

[0025] The first end of the second LED lamp circuit is connected to the second driving level output end of the controller for receiving the second driving level;

[0026] The first end of the third LED lamp circuit is connected to the third driving level output end of the controller for receiving the third driving level;

[0027] The second end of the first LED lamp circuit, the second end of the second LED lamp circuit and the second end of the third LED lamp circuit are simultaneously connected to a power supply voltage.

[0028] Preferably, in an embodiment of the RFID electronic signature blocking circuit described in the utility model, the light emitting colors of the first LED light circuit, the second LED light circuit and the third LED light circuit are different.

[0029] Preferably, in an embodiment of the RFID electronic signature blocking circuit described in the utility model, when the power prompt module includes the sound prompt circuit, the sound prompt circuit includes a voice broadcast chip U7, a power amplifier chip U8 and a speaker U13;

[0030] The first pin of the voice broadcast chip U7 is connected to the sixth pin of the controller, the second pin of the voice broadcast chip U7 is connected to the seventh pin of the controller, the third pin of the voice broadcast chip U7 is connected to the first pin of the power amplifier chip U8, and the fourth pin of the voice broadcast chip U7 is connected to the second pin of the power amplifier chip U8;

[0031] The third pin of the power amplifier chip U8 is connected to the first pin of the speaker U13, and the fourth pin of the power amplifier chip U8 is connected to the second pin of the speaker U13.

[0032] Preferably, in an embodiment of the RFID electronic signature blocking circuit described in the utility model, the data communication module includes an ESIM chip U6;

[0033] The first pin of the ESIM chip U6 is connected to the power supply voltage, the second pin of the ESIM chip U6 is grounded, the third pin of the ESIM chip is connected to the eleventh pin of the controller, the fourth pin of the ESIM chip is connected to the ninth pin of the controller, and the fifth pin of the ESIM chip U6 is connected to the tenth pin of the controller.

[0034] Preferably, in an embodiment of the RFID electronic signature blocking circuit described in the utility model, the positioning module includes a GPS circuit, and the GPS circuit includes a GPS chip U11, an antenna U12 and an inductor L1;

[0035] The first pin of the GPS chip U11 is connected to the power supply voltage, the second pin of the GPS chip U11 is grounded, the third pin of the GPS chip U11 is connected to the fourth pin of the controller, the fourth pin of the GPS chip U11 is connected to the fifth pin of the controller, the fifth pin of the GPS chip U11 is connected to the first end of the antenna U12 and the first end of the inductor L1, and the sixth pin of the GPS chip U11 is connected to the second end of the inductor L1.

[0036] The implementation of an RFID electronic signature blocking circuit of the utility model has the following beneficial effects: it can realize dual identity recognition of the device and reduce the risk of data leakage of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0038] Figure 1 This is a logic block diagram of an embodiment of an RFID electronic signature blocking circuit of the utility model;

[0039] Figure 2 This is a logic block diagram of an embodiment of an RFID electronic signature blocking circuit of the utility model;

[0040] Figure 3 This is a partial circuit schematic diagram of an embodiment of an RFID electronic signature blocking circuit of the utility model;

[0041] Figure 4 This is a partial circuit schematic diagram of another embodiment of an RFID electronic signature blocking circuit of the utility model;

[0042] Figure 5 This is a partial circuit schematic diagram of another embodiment of an RFID electronic signature blocking circuit of the utility model. DETAILED DESCRIPTION

[0043] In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation methods of the present utility model are now described in detail with reference to the accompanying drawings.

[0044] like Figure 1 As shown, an embodiment of an RFID electronic signature blocking circuit of the utility model is shown. Figure 1In one embodiment of the RFID electronic signature blocking circuit of the utility model shown, the blocking circuit includes: a controller 110, a positioning module 120, a data communication module 130, an RFID radio frequency tag 140 and a lock body driving module 150; the positioning module 120 is connected to the controller 110, and is used to generate current position information and send it to the controller 110; the data communication module 130 is connected to the controller 110, and is used to receive the position information sent by the controller 110 and send it to the terminal device; the RFID radio frequency tag 140 is connected to the controller 110, and is used to receive the lock body control instruction generated by the terminal device and send it to the controller 110, so that the controller 110 generates a control level according to the lock body control instruction; the lock body driving module 150 is connected to the controller 110, and is used to receive the control level generated by the controller 110 to drive the lock body action. Specifically, in the blocking circuit, the current position information of the blocking circuit is obtained through the positioning module 120. When the blocking circuit is set in a packaging bag, it can actually reflect the position information of the packaging bag. The data communication module 130 obtains the current position information through the controller 110 and sends it to the terminal device. The terminal device can be understood as a specific user terminal. The terminal device establishes a relationship with the blocking circuit through the data communication module 130. Only a legitimate terminal device can communicate with the data communication module 130 and receive the location information to realize the identity authentication of the blocking circuit and the terminal device. At the same time, the terminal device can also realize real-time tracking of the location of the blocking circuit (for the packaging bag). When the read and write function of the RFID radio frequency tag 140 is started through the terminal device, only the terminal device that has established communication with the data communication module 130 can realize the reading and writing of the RFID radio frequency tag 140. That is, the RFID radio frequency tag 140 can be read and written only when the terminal device obtains the location information of the blocking circuit. When the terminal device successfully reads and writes the RFID radio frequency tag 140, the lock body control instruction generated by the terminal device is received through the RFID radio frequency tag 140, and the lock body drive module 150 is driven by the controller 110 to drive the lock body to perform corresponding operations. The operation of the lock body may include unlocking or locking. In one embodiment, such as Figure 4 As shown, the lock body driving module 150 is composed of a motor driving chip U3 and a motor U4. The process of the lock body driving module 150 driving the lock body 200 to unlock is to drive the motor U4 to move through the motor driving chip U3, and the movement of the motor U4 drives the lock body to unlock or lock. Among them, the controller 110 can be an MCU chip to realize data input and output, as well as input or output of various levels.

[0045] Based on the above process, the terminal device can first be authenticated through the data communication module 130, and then in the process of identifying the RFID tag 140, the terminal device can be authenticated through the RFID tag 140, so that only a specific terminal device can identify the RFID tag 140, and the blocked circuit can be authenticated again. Finally, the terminal device can be double-authenticated through the data communication module 130 and the RFID tag 140, thereby improving the confidentiality of the blocked circuit.

[0046] Optional, such as Figure 2 As shown, the blocking circuit also includes: a power supply battery 180, a power supply monitoring module 160 and a power prompt module 170; the power supply monitoring module 160 is connected to the controller 110, and is used to monitor the power supply battery 180, and generates a monitoring level according to the current power of the power supply battery 180 and sends it to the controller 110, so that the controller 110 generates a driving level according to the monitoring level; the power prompt module 170 is connected to the controller 110, and is used to receive the driving level generated by the controller 110 to generate power indication information. Specifically, the power supply battery 180 provides working voltage for each module in the blocking circuit. The power supply monitoring module 160 monitors the current power of the power supply battery 180, generates a corresponding monitoring level according to the current power of the power supply battery 180, and the controller 110 generates a corresponding driving level after receiving the monitoring level, and the power prompt module 170 generates power indication information according to the corresponding driving level. Among them, the power supply monitoring module 160 can use a voltage sampling circuit to obtain the corresponding battery power calculation result through the voltage acquisition result.

[0047] Optional, such as Figure 3 and Figure 4As shown, the power supply monitoring module 160 includes a first voltage monitoring circuit 161 and a second voltage monitoring circuit 162; the first voltage monitoring circuit 161 is used to generate a first monitoring level when the power supply voltage of the power supply battery 180 is not lower than the first threshold value, otherwise it generates a second monitoring level; the second voltage monitoring circuit 162 is used to generate a third monitoring level when the power supply voltage of the power supply battery 180 is not lower than the second threshold value, otherwise it generates a fourth monitoring level, and the second threshold value is less than the first threshold value; the controller 110 outputs a first drive level when receiving the first monitoring level, outputs a third drive level when receiving the fourth monitoring level, and outputs a second drive level when receiving the second monitoring level and the third monitoring level at the same time; the power prompt module 170 generates a first prompt message when receiving the first drive level, generates a second prompt message when receiving the second drive level, and generates a third prompt message when receiving the third drive level. Specifically, the power supply monitoring module 160 may include a plurality of different power supply monitoring modules 160, and different power supply monitoring modules 160 are used to generate monitoring levels according to different threshold values. For example, it includes a first voltage monitoring circuit 161 and a second voltage monitoring circuit 162. The first voltage monitoring circuit 161 corresponds to a first threshold value. When the power supply voltage of the power supply battery 180 is not lower than the first threshold value, a first monitoring level is generated, otherwise a second monitoring level is generated. The second voltage monitoring circuit 162 corresponds to a second threshold value, and the second threshold value is less than the first threshold value. When the power supply voltage of the power supply battery 180 is not lower than the second threshold value, a third monitoring level is generated, otherwise a fourth monitoring level is generated. The controller 110 outputs a driving level according to the received monitoring level. Among them, the process of the controller 110 receiving the monitoring level and outputting the driving level is implemented through a general processing process. That is, the first driving level, the second driving level and the third driving level can be obtained, and different driving levels drive the power prompt module 170 to generate different prompt information.

[0048] Optionally, in one embodiment, the first voltage monitoring circuit 161 includes a low voltage monitoring chip U10, a capacitor C33, a capacitor C32 and a resistor R79; the third pin and the fourth pin of the low voltage monitoring chip U10 are connected to the first end of the capacitor C33 and the power supply battery 180, the fifth pin of the low voltage monitoring chip U10 is connected to the first end of the capacitor C32, the first pin of the low voltage monitoring chip U10 is connected to the first end of the resistor R79 and the twelfth pin of the controller 110, the second pin of the low voltage monitoring chip U10, the second end of the capacitor C33 and the second end of the capacitor C32 are grounded, and the second end of the resistor R79 is connected to a power supply voltage. That is, the first voltage monitoring circuit 161 can be composed of the low voltage monitoring chip U10 and its peripheral circuits. Set the voltage monitoring threshold of the low voltage monitoring chip U10, for example, set it to 4V. When the battery supply voltage is not lower than 4V, the first pin of the low voltage monitoring chip U10 outputs a high level (corresponding to the first monitoring level); when the battery supply voltage is lower than 4V, the first pin of the low voltage monitoring chip U10 outputs a low level (corresponding to the second monitoring level).

[0049] Optionally, in one embodiment, the second voltage monitoring circuit 162 includes a low voltage monitoring chip U9, a capacitor C26, a capacitor C31 and a resistor R28; the third pin and the fourth pin of the low voltage monitoring chip U9 are connected to the first end of the capacitor C26 and the power supply battery 180, the fifth pin of the low voltage monitoring chip U9 is connected to the first end of the capacitor C31, the first pin of the low voltage monitoring chip U9 is connected to the first end of the resistor R28 and the thirteenth pin of the controller 110, the second pin of the low voltage monitoring chip U9, the second end of the capacitor C26 and the second end of the capacitor C31 are grounded, and the second end of the resistor R28 is connected to a power supply voltage. That is, the second voltage monitoring circuit 162 can be composed of a low voltage monitoring chip U9 and its peripheral circuits. Set the voltage monitoring threshold of the low voltage monitoring chip U9, for example, set it to 3.8V. When the battery supply voltage is not lower than 3.8V, the first pin of the low voltage monitoring chip U9 outputs a high level (corresponding to the third monitoring level); when the battery supply voltage is lower than 3.8V, the first pin of the low voltage monitoring chip U9 outputs a low level (corresponding to the fourth monitoring level).

[0050] Optional, such as Figure 5 As shown, the power prompt module 170 includes a light prompt circuit 171, which is connected to the controller 110 and is used to generate light prompt information. That is, the blocking circuit can be set to provide the light prompt circuit 171 for power prompt.

[0051] Optional, such as Figure 5 As shown, the power prompt module 170 also includes a sound prompt circuit 172; the sound prompt circuit 172 is connected to the controller 110 and is used to generate sound prompt information. That is, the blocking circuit can set the sound prompt circuit 172 to perform power prompts.

[0052] Optionally, in one embodiment, the light prompt circuit 171 includes a first LED light circuit, a second LED light circuit and a third LED light circuit; the first end of the first LED light circuit is connected to the first drive level output end of the controller 110 for receiving the first drive level; the first end of the second LED light circuit is connected to the second drive level output end of the controller 110 for receiving the second drive level; the first end of the third LED light circuit is connected to the third drive level output end of the controller 110 for receiving the third drive level; the second end of the first LED light circuit, the second end of the second LED light circuit and the second end of the third LED light circuit are simultaneously connected to a power supply voltage. Specifically, as Figure 5 As shown, the first LED lamp circuit may be composed of a first light emitting diode and a resistor R12, and the cathode of the first light emitting diode is connected to the first driving level output terminal of the controller 110 through the resistor R12, so as to be driven to emit light by the first driving level output by the controller 110. The second LED lamp circuit may be composed of a second light emitting diode and a resistor R13, and the cathode of the second light emitting diode is connected to the second driving level output terminal of the controller 110 through the resistor R13, so as to be driven to emit light by the second driving level output by the controller 110. The third LED lamp circuit may be composed of a third light emitting diode and a resistor R6, and the cathode of the third light emitting diode is connected to the third driving level output terminal of the controller 110 through the resistor R6, so as to be driven to emit light by the third driving level output by the controller 110. In one embodiment, the light emitting colors of the first LED lamp circuit, the second LED lamp circuit, and the third LED lamp circuit are different. That is, different light emitting colors of different LED lamp circuits can be realized by setting the first light emitting diode, the second light emitting diode, and the third light emitting diode to different light emitting colors. For example, the first light emitting diode is green, the second light emitting diode is yellow, and the third light emitting diode is red. In one embodiment, the first light emitting diode, the second light emitting diode and the third light emitting diode are integrated into the same light emitting diode chip D1.

[0053] Optional, such as Figure 5 As shown, the sound prompt circuit 172 includes a voice broadcast chip U7, a power amplifier chip U8 and a speaker U13; the first pin of the voice broadcast chip U7 is connected to the sixth pin of the controller 110, the second pin of the voice broadcast chip U7 is connected to the seventh pin of the controller 110, the third pin of the voice broadcast chip U7 is connected to the first pin of the power amplifier chip U8, and the fourth pin of the voice broadcast chip U7 is connected to the second pin of the power amplifier chip U8; the third pin of the power amplifier chip U8 is connected to the first pin of the speaker U13, and the fourth pin of the power amplifier chip U8 is connected to the second pin of the speaker U13. That is, the voice broadcast chip U7 receives the data output by the controller 110 to generate the corresponding sound information, and after being processed by the power amplifier chip U8, it is broadcasted through the speaker U13.

[0054] Optional, such as Figure 4 As shown, the data communication module 130 includes an ESIM chip U6; the first pin of the ESIM chip U6 is connected to the power supply voltage, the second pin of the ESIM chip U6 is grounded, the third pin of the ESIM chip is connected to the eleventh pin of the controller 110, the fourth pin of the ESIM chip is connected to the ninth pin of the controller 110, and the fifth pin of the ESIM chip U6 is connected to the tenth pin of the controller 110. Specifically, in the blocking circuit, the data communication module 130 is composed of the ESIM chip U6 and its peripheral circuits to achieve communication with the terminal device. That is, the terminal device can achieve information exchange with the controller 110 through the ESIM chip U6.

[0055] Optionally, the positioning module 120 includes a GPS circuit, which includes a GPS chip U11, an antenna U12 and an inductor L1; the first pin of the GPS chip U11 is connected to the power supply voltage, the second pin of the GPS chip U11 is grounded, the third pin of the GPS chip U11 is connected to the fourth pin of the controller 110, the fourth pin of the GPS chip U11 is connected to the fifth pin of the controller 110, the fifth pin of the GPS chip U11 is connected to the first end of the antenna U12 and the first end of the inductor L1, and the sixth pin of the GPS chip U11 is connected to the second end of the inductor L1. Specifically, the positioning module 120 can be a GPS circuit, which can be composed of a GPS chip U11 and its peripheral circuits. The GPS chip U11 transmits data with the terminal device through the antenna U12. In one embodiment, the positioning module 120 can also be implemented using other positioning circuits.

[0056] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should belong to the scope covered by the claims of the utility model.

Claims

1. An RFID electronic signature blocking circuit, characterized in that: include: Controller and positioning module, data communication module, RFID radio frequency tag and lock body drive module; The positioning module is connected to the controller and is used to generate current position information and send it to the controller; The data communication module is connected to the controller and is used to receive the location information sent by the controller and send it to the terminal device; The RFID radio frequency tag is connected to the controller, and is used to receive the lock body control instruction generated by the terminal device and send it to the controller, so that the controller generates a control level according to the lock body control instruction; The lock body driving module is connected to the controller and is used to receive the control level generated by the controller to drive the lock body to move.

2. The RFID electronic signature blocking circuit according to claim 1, characterized in that: The blocking circuit also includes: a power supply battery, a power supply monitoring module and a power prompt module; The power supply monitoring module is connected to the controller and is used to monitor the power supply battery, generate a monitoring level according to the current power of the power supply battery and send the monitoring level to the controller, so that the controller generates a driving level according to the monitoring level; The power prompt module is connected to the controller and is used to receive the driving level generated by the controller to generate power indication information.

3. The RFID electronic signature blocking circuit according to claim 2, characterized in that: The power supply monitoring module includes a first voltage monitoring circuit and a second voltage monitoring circuit; The first voltage monitoring circuit is used to generate a first monitoring level when the power supply voltage of the power supply battery is not lower than a first threshold value, and otherwise generate a second monitoring level; The second voltage monitoring circuit is used to generate a third monitoring level when the power supply voltage of the power supply battery is not lower than a second threshold value, otherwise generate a fourth monitoring level, and the second threshold value is less than the first threshold value; The controller outputs a first drive level when receiving the first monitoring level, outputs a third drive level when receiving the fourth monitoring level, and outputs a second drive level when receiving the second monitoring level and the third monitoring level simultaneously; The power prompt module generates first prompt information when receiving the first driving level, generates second prompt information when receiving the second driving level, and generates third prompt information when receiving the third driving level.

4. The RFID electronic signature blocking circuit according to claim 3, characterized in that: The first voltage monitoring circuit includes a low voltage monitoring chip U10, a capacitor C33, a capacitor C32 and a resistor R79; the third pin and the fourth pin of the low voltage monitoring chip U10 are connected to the first end of the capacitor C33 and the power supply battery, the fifth pin of the low voltage monitoring chip U10 is connected to the first end of the capacitor C32, the first pin of the low voltage monitoring chip U10 is connected to the first end of the resistor R79 and the twelfth pin of the controller, the second pin of the low voltage monitoring chip U10, the second end of the capacitor C33 and the second end of the capacitor C32 are grounded, and the second end of the resistor R79 is connected to a power supply voltage; and / or The second voltage monitoring circuit includes a low-voltage monitoring chip U9, a capacitor C26, a capacitor C31 and a resistor R28; the third pin and the fourth pin of the low-voltage monitoring chip U9 are connected to the first end of the capacitor C26 and the power supply battery, the fifth pin of the low-voltage monitoring chip U9 is connected to the first end of the capacitor C31, the first pin of the low-voltage monitoring chip U9 is connected to the first end of the resistor R28 and the thirteenth pin of the controller, the second pin of the low-voltage monitoring chip U9, the second end of the capacitor C26 and the second end of the capacitor C31 are grounded, and the second end of the resistor R28 is connected to a supply voltage.

5. The RFID electronic signature blocking circuit according to claim 3, characterized in that: The power prompt module includes a light prompt circuit and / or a sound prompt circuit; The light emitting prompt circuit is connected to the controller and is used to generate light emitting prompt information; The sound prompt circuit is connected to the controller and is used to generate sound prompt information.

6. The RFID electronic signature blocking circuit according to claim 5, characterized in that: When the power prompt module includes the light-emitting prompt circuit, the light-emitting prompt circuit includes a first LED light circuit, a second LED light circuit and a third LED light circuit; The first end of the first LED lamp circuit is connected to the first driving level output end of the controller for receiving the first driving level; The first end of the second LED lamp circuit is connected to the second driving level output end of the controller for receiving the second driving level; The first end of the third LED lamp circuit is connected to the third driving level output end of the controller for receiving the third driving level; The second end of the first LED lamp circuit, the second end of the second LED lamp circuit and the second end of the third LED lamp circuit are simultaneously connected to a power supply voltage.

7. The RFID electronic signature blocking circuit according to claim 6, characterized in that: The first LED lamp circuit, the second LED lamp circuit and the third LED lamp circuit emit different colors of light.

8. The RFID electronic signature blocking circuit according to claim 5, characterized in that: When the power prompt module includes the sound prompt circuit, the sound prompt circuit includes a voice broadcast chip U7, a power amplifier chip U8 and a speaker U13; The first pin of the voice broadcast chip U7 is connected to the sixth pin of the controller, the second pin of the voice broadcast chip U7 is connected to the seventh pin of the controller, the third pin of the voice broadcast chip U7 is connected to the first pin of the power amplifier chip U8, and the fourth pin of the voice broadcast chip U7 is connected to the second pin of the power amplifier chip U8; The third pin of the power amplifier chip U8 is connected to the first pin of the speaker U13, and the fourth pin of the power amplifier chip U8 is connected to the second pin of the speaker U13.

9. The RFID electronic signature blocking circuit according to claim 1, characterized in that: The data communication module includes an ESIM chip U6; The first pin of the ESIM chip U6 is connected to the power supply voltage, the second pin of the ESIM chip U6 is grounded, the third pin of the ESIM chip is connected to the eleventh pin of the controller, the fourth pin of the ESIM chip is connected to the ninth pin of the controller, and the fifth pin of the ESIM chip U6 is connected to the tenth pin of the controller.

10. The RFID electronic signature blocking circuit according to claim 1, characterized in that: The positioning module includes a GPS circuit, and the GPS circuit includes a GPS chip U11, an antenna U12 and an inductor L1; The first pin of the GPS chip U11 is connected to the power supply voltage, the second pin of the GPS chip U11 is grounded, the third pin of the GPS chip U11 is connected to the fourth pin of the controller, the fourth pin of the GPS chip U11 is connected to the fifth pin of the controller, the fifth pin of the GPS chip U11 is connected to the first end of the antenna U12 and the first end of the inductor L1, and the sixth pin of the GPS chip U11 is connected to the second end of the inductor L1.

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