CN111402466A - Anti-dismantling device and locking and unlocking method thereof - Google Patents

Abstract

The invention relates to a device capable of preventing disassembly and a locking and unlocking method thereof, wherein the device capable of preventing disassembly comprises a main body and an accessory, the main body comprises a locking unit, a control unit and a trigger unit, the control unit comprises a communication module, the accessory at least comprises a lock catch, the locking unit is provided with a locking position and an unlocking position, the control unit is electrically connected with the locking unit and the trigger unit, the control unit is communicated with an authorization terminal and applies for unlocking after receiving a trigger signal of the trigger unit, the authorization terminal feeds back information to the control unit, if the feedback information received by the control unit comprises unlocking authorization, the locking unit is controlled to enter the unlocking position, and if the feedback information received by the control unit does not comprise the unlocking authorization, the locking unit is maintained at the locking position. According to the invention, the unlocking operation can be executed only by triggering to acquire the authorization, the control unit is in the dormant state before the triggering, and the control unit enters the active state after the triggering, so that the energy consumption can be effectively saved, the practicability is higher, the safety is higher, and the illegal disassembly behavior can be effectively avoided.

Description

A detachable device and method for locking and unlocking the same

technical field

The invention belongs to the technical field of anti-disassembly devices, and in particular relates to an anti-disassembly device and a locking and unlocking method thereof.

Background technique

Electronic tags, trackers, etc. currently on the market that are attached to livestock, pets, children, or people with abnormal conditions are too easy to be undone, and the devices may be unlocked and lost unintentionally, or even removed intentionally. The commonly used locking method is to use a special and dedicated mechanical structure. For example, the equipment is divided into two parts: the main body and the fixed buckle, which are clamped on both sides of the outer ear of the livestock, and the two parts of the equipment are locked with plum-shaped countersunk screws. The matching Torx-shaped screwdriver is used to screw the screw, and this screwdriver is difficult to buy in the market, so as to prevent the device from being removed. In fact, there are a large number of users of the same product, which means that every user can get a Torx screwdriver. And since the plum-shaped screwdriver was designed and produced, it is not difficult for those who are interested to buy this kind of tool on the market. Therefore, this method of relying on a specific type of mechanical fixation cannot play its due anti-dismantling effect.

In the prior art, patent CN110226817A discloses an anti-disassembly alarm watch, but the alarm module added to the watch can actually only play an alarm function, and cannot prevent the watch itself from being disassembled. Another patent CN109869051A discloses an Internet of Things lock, including an outer lock shell and an inner lock shell that can be installed and fixed together, an electronic lock cylinder is arranged between the outer lock shell and the inner lock shell, and the electronic lock cylinder includes a control module. The module is also electrically connected with the communication module, and the communication module receives the signal from the Internet of Things platform to set the password in the lock to the control module, and the control module is provided with a Bluetooth module. The Internet of Things lock has the advantages of remote dynamic password modification and unlocking, accurate lock tongue control operation, and convenient disassembly and assembly. However, in the above technical solution, the control module should always or regularly check whether someone wants to unlock, that is, it is always in a working state and consumes power.

To sum up, there is an urgent need to provide a tamper-resistant device that is energy-saving and can effectively prevent illegal disassembly, and a locking and unlocking method thereof.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a tamper-proof device that is energy-saving and can effectively prevent illegal disassembly and a locking and unlocking method thereof.

The above object is achieved through the following technical solutions: a detachable device, comprising a main body and an accessory, the main body includes a locking unit, a control unit, and a trigger unit, the control unit further includes a communication module, and the accessory at least includes a lock The lock is used in conjunction with the locking unit to lock the accessory on the main body. The locking unit is provided with a locking position and an unlocking position. When the accessory is combined with the main body, the lock is located in the main body. The locking unit of the locking position limits and realizes locking, and the locking unit is in an unlocked state when it is in the unlocking position; the control unit is electrically connected with the locking unit and the trigger unit, and the control unit can communicate with a predetermined unit through the communication module. The authorized terminal communicates with the connection, the control unit communicates with the authorized terminal after receiving the trigger signal from the trigger unit and applies for unlocking, the authorized terminal feeds back information to the control unit, if the feedback information received by the control unit If the unlocking authorization is included, the locking unit is controlled to enter the unlocking position, and if the feedback information received by the control unit does not include the unlocking authorization, the locking unit is maintained in the locking position.

The anti-disassembly device of the present invention needs to be triggered by corresponding operations before unlocking. After the triggering, the control unit communicates with the authorized terminal and obtains the unlocking authorization. After the authorization is obtained, the control unit can perform the unlocking operation, and then the user can implement the separation of the main body and the accessories. operation. This product does not require an external power-supplied key to be inserted into the lock to unlock, and before the trigger is triggered, the control unit is in a dormant state and does not perform lock-related functions, such as applying for authorization, unlocking operations, etc., the control unit enters the active state after the trigger unit is touched It can be considered that all power consumption related to the function of the lock is zero, which can effectively save energy consumption, improve the service life of the product and market application prospects, and has higher practicability and safety, and can effectively avoid illegal disassembly. .

A further technical solution is that the trigger unit is arranged inside the main body, the trigger unit includes a trigger switch, and the trigger switch includes at least two contacts, one of which is electrically connected to the control unit, and the other is connected to the control unit. The point is connected to the internal voltage source of the tamper-resistant device, and the relative movement of the accessory and the main body can realize the closing or opening of the trigger switch, and the closure of the trigger switch will cause communication with the control unit. A voltage change occurs at the connected contacts, which voltage change is transmitted to the control unit as a trigger signal. When the present invention is used, the user moves the accessory relative to the main body, thereby realizing the closing or disconnecting of the trigger switch, that is, the trigger action when unlocking is required is hidden, and the unlocking operation has strong concealment, and ordinary people I don't know the unlocking operation process of this device, it is more practical and safer.

A further technical solution is that the tamper-proof device includes a main function module, a control circuit for controlling the action of the locking unit is embedded in the main function module, and the control circuit and the main function module share the same control unit. Under this structure, the unlocking control circuit is embedded in the main module circuit, and the functional circuit of the main module is working, but it does not perform the relevant functions of the lock, such as applying for authorization, unlocking operations, etc. All relevant power consumption is zero. When the trigger device is triggered, the part related to the lock function in the circuit starts to consume power (programs run by the control unit, open the communication module to apply for authorization to the platform, actuation of the latch, etc.), so A low-power mode is implemented.

A further technical solution is that, before the triggering unit performs the triggering action, the control circuit for controlling the action of the locking unit is disconnected, and after the triggering unit performs the triggering action, the control circuit forms an energized loop and triggers the control. unit work. Under this structure, the entire control circuit is not powered on before triggering. After triggering, the control circuit is powered on and performs related operations. After completion, the trigger switch is disconnected, and the power supply of the entire circuit is cut off, thus realizing low energy consumption. model.

A further technical solution is that the trigger switch includes two contacts, a return spring and a conductive plate arranged on the return spring, and the return spring is pressed to move so that the conductive plate is in contact with the two contacts, and the trigger switch closure. In this way, when the user performs the triggering action, that is, when the accessory and the main body move relatively, such as pressing the accessory, the return spring is driven to move, so that the conductive plate on the return spring is in contact with the two contacts on the trigger switch, and the switch is triggered. Closing triggers.

A further technical solution is that the trigger unit includes a signal interface, the signal interface at least includes a power supply signal, the signal interface is electrically connected to the control unit, and the power supply signal appears after the signal interface is connected to an external power supply through a data line. supply voltage and transmit this as a trigger signal to the control unit. In this way, the unlocking triggering method of the present invention makes the triggering action when unlocking is hidden, that is, the method of setting a signal interface is adopted. , the control unit of the present invention can start the communication function and connect with the authorized terminal by inserting the data cable into the signal interface. In this way, the power supply signal can be triggered by the power supply voltage, and the unlocking operation has strong concealment, higher practicability and higher security. , which can effectively avoid illegal disassembly.

A further technical solution is that the locking unit includes a lock tongue and a driving member, the locking tongue is connected with the driving member, the driving member is electrically connected with the control unit, and the accessory includes a thorn, a lock catch and a lock. A buckle back plate, one end of the lock buckle is connected with the lock buckle back plate, the other end is provided with the thorn, the lock buckle is provided with a lock groove, and the lock tongue extends into the lock groove to form a locking position, The driving member can drive the lock tongue to move out of the lock slot to form an unlocking position, push the lock back plate to make the accessory and the main body move toward each other, and can drive the lancet to move so that the trigger unit triggers and triggers the trigger. Signal. In this way, the user can drive the puncture needle to move closer to the return spring by pushing the lock back plate and press the return spring to move so that the two contacts of the trigger switch are in contact, and after the trigger is authorized, the driver is The locking tongue can be driven to retract out of the locking slot to form an unlocking position. The driving member here is preferably a solenoid.

A further technical solution is that the main body includes a lock body, the locking unit includes a lock tongue and a driving member, the lock tongue is connected with the driving member, and the lock tongue is fixed in the lock body by an elastic member, so The accessory includes a buckle, the buckle is provided with a pin, the end of the pin is provided with a lock, the lock tongue extends into the lock to form a locking position, and the driving member is electrically connected with the control unit , the driving member can drive the lock tongue to move out of the lock to form an unlocking position; press the lock to make the trigger unit trigger and send out a trigger signal. This structure is suitable for the latch lock form. When the latch is inserted into the lock body, the latch extends into the latch to form a locking position, and the latch is pressed to drive the latch to move toward each other so that the contacts of the two triggers are contacted to achieve triggering.

A further technical solution is that the buckle is provided with two symmetrically arranged pins, the locking unit includes at least two lock tongues, and the two lock tongues are respectively connected with the contacts of the trigger unit, and the locking buckle is pressed to drive the lock. The movement of at least one locking tongue makes the two contacts of the triggering unit connect to realize triggering and issue a triggering signal.

A further technical solution is that the driving member is an electromagnet, the electromagnet is arranged between the two lock tongues, the lock tongue is made of a magnetic material, and the control unit can control the on-off of the electromagnet. Electricity.

A further technical solution is that the accessory includes a connecting end and a locking end, the locking end of the accessory is provided with a lock, and the locking unit includes a lock tongue and a stopper, and the lock tongue and the stopper are provided with In the main body, the lock tongue is hinged with the main body and can be rotated along the hinge point, the stopper is fixed on the lower part of the lock tongue, and the stopper is provided with a support for supporting the lock tongue. A retractable limit rod of the lock tongue, one end of the lock tongue is connected with the limiter through a tension spring, and the other end can extend into the lock to form a locking position, and the limit rod is downward When retracted, the tension spring pulls the lock tongue downward and rotates along its hinge point with the main body, and at the same time, the accessory moves upward until the lock tongue moves out of the lock to form an unlocking position; presses down on the accessory, so When the lock catch drives the lock tongue to rotate along its hinge point with the main body, the end of the lock tongue connected with the tension spring lifts up and touches the trigger unit, so that the trigger unit is triggered and a trigger signal is sent. This structure is suitable for padlock form.

A further technical solution is that the limiter is a telescopic cylinder; or the limiter is a rotary telescopic mechanism, and the limiter includes a drive motor, which is dynamically connected with the limit rod, and the control unit can Control the forward and reverse rotation of the drive motor and drive the limit rod to perform telescopic movement.

A further technical solution is that the locking unit includes a locking tongue and a driving member, the accessory includes a locking member and a locking buckle arranged on the locking member, the locking tongue is connected with the driving member, and the locking tongue is connected to the driving member. The locking position is formed by extending into the lock catch, and the driving member can drive the lock tongue to move out of the lock catch to form the unlock position. It is preferably applicable to a form that does not require a physical structure to realize triggering, such as a form of power-on through a data line inserted into a communication interface, but of course, it can also be applied to other forms.

A further technical solution is that the locking member is a locking plate, one side of the locking plate is hinged with the main body through a hinge and can be rotated along its hinge point, and the other side is provided with the locking buckle.

In order to achieve the above object, the present invention also provides a method for locking and unlocking a tamper-proof device, comprising the following steps:

(1) Trigger: the trigger unit triggers and transmits the trigger signal to the control unit;

(2) Wake up: the control unit wakes up from the dormant state and starts to perform the unlocking operation;

(3) Authorization: the control unit sends an unlocking application to the authorized terminal through wireless communication, and the authorized terminal feeds back information to the control unit;

(4) Unlocking or maintaining locking: if the feedback information received by the control unit includes the unlocking authorization, the locking unit is controlled to enter the unlocking position, and if the feedback information received by the control unit does not include the unlocking authorization, the locking unit is maintained in the locking position.

(5) Dormancy: After completing step (4), the control unit enters a dormant state.

The anti-disassembly device of the present invention needs to be triggered by corresponding operations before unlocking. After the triggering, the control unit communicates with the authorized terminal and obtains the unlocking authorization. After the authorization is obtained, the control unit can perform the unlocking operation, and then the user can implement the separation of the main body and the accessories. operation. And before the trigger, the control unit is in a dormant state, and does not perform lock-related functions, such as applying for authorization, unlocking operations, etc., the control unit enters the active state after the trigger unit is touched, and then it can be considered that all power consumption related to the lock function is Zero, can effectively save energy consumption, improve product life and market application prospects, higher practicability, higher safety, and can effectively avoid illegal disassembly.

A further technical solution is that the hibernation in the step (5) refers to complete power off.

A further technical solution is that in the step (1), before the triggering unit does not perform the triggering action, the control circuit for controlling the action of the locking unit is disconnected, and after the triggering unit performs the triggering action, the control circuit forming an energized loop to achieve triggering; or triggering in the step (1) to make the trigger switch of the trigger unit act, the voltage of at least one contact on the trigger unit that is electrically connected to the control unit changes, and the trigger signal is transmitted to the control unit.

A further technical solution is that the tamper-proof device includes a Bluetooth communication circuit, the authorization terminal is an unlocking authorization management platform, the control unit is communicated and connected to a mobile phone terminal through a Bluetooth circuit, and the mobile phone terminal is connected to the mobile phone terminal. The unlocking authorization management platform communication connection, before the step (1), the user who adds the mobile phone terminal on the unlocking authorization management platform opens the unlocking authorization of the tamper-proof device; the step (2) also includes an authentication step : The control unit controls to turn on the bluetooth, establishes a communication connection with the bluetooth of the mobile terminal, and sends the ID of the tamper-proof device and asks for the unlocking authorization to the mobile terminal, and the mobile terminal sends the tamper-proof device to the unlocking authorization management platform. and apply for unlocking authorization. The unlocking authorization management platform receives the ID of the tamper-proof device sent by the mobile terminal user, and inquires whether the mobile terminal user has the authorization to open the tamper-proof device with this ID. The mobile phone terminal sends the unlocking authorization, and the mobile phone terminal sends the unlocking authorization to the control unit; otherwise, no relevant action is performed.

The present invention also provides another method for locking and unlocking a detachable device, which is characterized in that it includes the following steps:

(1) Triggering: triggering makes the two contacts of the trigger unit contact; if the contact time of the trigger lasts for a predetermined time or more, enter step (2), and if the contact time of the trigger is less than the predetermined time, enter step (3);

(2) Judgment or unbinding: The control unit checks whether the device is currently bound to an authorized terminal, and if so, starts the communication circuit, waits for the authorized terminal to access and verifies the unbinding password. If the verification fails, enter step (5); if not, start the communication circuit, wait for the terminal to access and verify the binding password, if the verification passes, the binding terminal is an authorized terminal, and after binding, only the authorized terminal can be passed. Operate the tamper-resistant device as the only terminal, and if the verification fails, enter step (5);

(3) Authorization: the control unit sends an unlocking application to the authorized terminal, and the authorized terminal feeds back information to the control unit; if the feedback information received by the control unit includes the unlocking authorization, then go to step (4), otherwise go to step (5)

(4) Unlocking: the control unit controls the locking unit to enter the unlocking position for a predetermined time;

(5) Maintain locking: the control unit does not send a control signal to maintain the locking unit in the locked position.

Description of drawings

The accompanying drawings constituting a part of the present invention are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

FIG. 1 is a schematic diagram of a work flow of a tamper-resistant device according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the working principle of the tamper-proof device according to an embodiment of the present invention;

3 is a flow chart of the work after the triggering of the control unit of the positioner according to an embodiment of the present invention;

4 is a schematic structural diagram of a positioner involved in an embodiment of the present invention;

5 is a schematic diagram of an unlocking trigger of a locator according to an embodiment of the present invention;

FIG. 6 and FIG. 7 are respectively a schematic structural diagram of retracting the lock tongue after obtaining the unlocking authorization and disassembling the positioner according to an embodiment of the present invention;

8 is a schematic diagram of the appearance structure of a temperature recorder according to an embodiment of the present invention;

9 to 12 are schematic diagrams of the locking structure of the temperature recorder involved in an embodiment of the present invention, the trigger application unlocking, the unlocking success, and the unlocking and removing the locked object;

Fig. 13 is a flow chart of the operation of the temperature recorder control unit involved in an embodiment of the present invention after triggering; Fig. 14 is a schematic diagram of the working principle of the pedometer involved in an embodiment of the present invention;

15 is a schematic structural diagram of a pedometer involved in an embodiment of the present invention;

16 to 18 are schematic diagrams of the locking structure of the pedometer involved in one embodiment of the present invention, the unlocking of the trigger application, and the successful unlocking;

19 is a schematic diagram of the workflow of a pedometer involved in an embodiment of the present invention;

20 is a schematic diagram of the device structure and working principle of an IoT padlock according to an embodiment of the present invention;

FIG. 21 and FIG. 22 are schematic diagrams of the Internet of Things padlock after triggering and unlocking, respectively, according to an embodiment of the present invention;

23 is a schematic diagram of a power supply circuit of an IoT padlock according to an embodiment of the present invention.

In the picture:

1 Latch 2 Trigger switch 3 Latch 4 Authorization terminal

5 Locking back plate 6 Positioner body 7 Thorn needle 8CPU

9 Solenoid 10 Positioning Control Module 11 Positioning Circuit 12 Communication Circuit

13Return spring 14Conductive plate 15USB interface 16Data cable

17 Temperature recorder body 18 Lock plate 19 Fixed belt slot 20 Control board

21 temperature sensor 22 lock body 23 buckle 24 controller

25 Electromagnets 26 Circuit boards 27 Elastic parts 28 Mobile phone terminals

29 Lock beam 30 Lock body 31 Limiter 32 Limit bar

33 Compression spring 34 Tension spring 35 Power supply maintenance circuit

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present invention. In addition, according to the description in this document, those skilled in the art can make corresponding combinations of features in the embodiments in this document and in different embodiments.

Embodiments of the present invention are as follows, referring to FIG. 1 and FIG. 2 , a tamper-proof device includes a main body and an accessory, the main body includes a locking unit, a control unit, and a trigger unit, the control unit further includes a communication module, the The accessory at least includes a lock catch 3, and the lock catch 3 can be used in conjunction with the locking unit to lock the accessory on the main body. The locking unit is provided with a locking position and an unlocking position. When the accessory is combined with the main body, The lock 3 is limited and locked by the locking unit located at the locking position, and the locking unit is in an unlocked state when the locking unit is located at the unlocking position; the control unit is electrically connected with the locking unit and the trigger unit, and the control unit is electrically connected through the lock unit. The communication module can be connected in communication with a predetermined authorization terminal 4, the control unit communicates with the authorization terminal 4 after receiving the trigger signal of the trigger unit and applies for unlocking the authorization terminal 4, and the authorization terminal 4 feeds back information to the control unit , if the feedback information received by the control unit includes the unlocking authorization, the locking unit is controlled to enter the unlocking position, and if the feedback information received by the control unit does not include the unlocking authorization, the locking unit is maintained in the locking position.

The anti-dismantling device of the present invention must be triggered by corresponding operations before unlocking. After the triggering, the control unit communicates with the authorization terminal 4 and obtains the unlocking authorization. Attachment operation. This product does not require an external power-supplied key to be inserted into the lock to unlock, and before the trigger is triggered, the control unit is in a dormant state and does not perform lock-related functions, such as applying for authorization, unlocking operations, etc., the control unit enters the active state after the trigger unit is touched It can be considered that all power consumption related to the function of the lock is zero, which can effectively save energy consumption, improve the service life of the product and market application prospects, and has higher practicability and safety, and can effectively avoid illegal disassembly. .

On the basis of the above-mentioned embodiment, in another embodiment of the present invention, as shown in FIG. 4 and FIG. 16 , the trigger unit is arranged inside the main body, and the trigger unit includes a trigger switch 2 , and the trigger switch 2 at least includes Two contacts, one of which is electrically connected to the control unit and the other is connected to the internal voltage source of the tamper-resistant device, the triggering can be achieved when the accessory and the main body move relative to each other When the switch 2 is closed or disconnected, the closing of the trigger switch 2 will cause a voltage change in the contacts connected to the control unit, and the voltage change is transmitted to the control unit as a trigger signal. When the present invention is used, the user moves the accessory relative to the main body, thereby realizing the closing or disconnecting of the trigger switch 2, that is, the trigger action when unlocking is required is hidden, and the unlocking operation has strong concealment, and ordinary People do not know the unlocking operation process of the device, which has higher practicability and higher security.

On the basis of the above embodiment, in another embodiment of the present invention, as shown in FIG. 4 and FIG. 9 , the tamper-proof device includes a main function module, and a control circuit for controlling the action of the locking unit is embedded in the In the main function module, the control circuit and the main function module share the same control unit. Under this structure, the unlocking control circuit is embedded in the main module circuit, and the functional circuit of the main module is working, but it does not perform the relevant functions of the lock, such as applying for authorization, unlocking operations, etc. All related power consumption is zero. When the trigger device is triggered, the part related to the lock function in the circuit starts to consume power (programs run by the control unit, open the communication module to apply for authorization to the platform, actuation of the lock tongue 1, etc.), This achieves a low power consumption mode.

On the basis of the above embodiment, in another embodiment of the present invention, as shown in FIG. 20 , before the triggering unit performs the triggering action, the control circuit for controlling the action of the locking unit is an open circuit, and the triggering unit triggers After the action, the control circuit forms a power-on loop and triggers the control unit to work. Under this structure, before triggering, the entire control circuit is not powered on. After triggering, the control circuit is powered on and performs related operations. After completion, the trigger switch 2 is turned off, and then the power supply of the entire circuit is cut off, thus realizing low energy consumption. mode.

On the basis of the above embodiment, in another embodiment of the present invention, as shown in FIG. 4 , the trigger switch 2 includes two contacts, a return spring 13 and a conductive plate 14 arranged on the return spring 13 to press the The movement of the return spring 13 makes the conductive plate 14 contact the two contacts, and the trigger switch 2 is closed. In this way, when the user performs the triggering action, that is, when the accessory and the main body move relatively, such as pressing the accessory, the reset spring 13 is driven to move, so that the conductive plate 14 on the reset spring 13 and the two contacts on the trigger switch 2 Contact, the trigger switch 2 is closed to achieve triggering.

On the basis of the above embodiment, in another embodiment of the present invention, as shown in FIG. 9 , the trigger unit includes a signal interface, the signal interface at least includes a power supply signal, and the signal interface is electrically connected to the control unit, so After the signal interface and the external power supply are connected through the data line 16, the power supply signal appears a power supply voltage, and this is transmitted to the control unit as a trigger signal. In this way, the unlocking triggering method of the present invention makes the triggering action when unlocking is hidden, that is, the method of setting the signal communication interface is adopted. Only the unit can turn on the communication function and connect with the authorization terminal 4. In this way, the power supply signal can be triggered by the power supply voltage, and the unlocking operation has strong concealment, higher practicability, and higher security, which can effectively avoid illegal disassembly.

On the basis of the above embodiment, in another embodiment of the present invention, as shown in FIG. 4 and FIG. 5 , the locking unit includes a lock tongue 1 and a driving member, the lock tongue 1 is connected with the driving member, and the driving member The accessory is electrically connected to the control unit, and the accessory includes a needle 7, a lock 3 and a lock back plate 5, one end of the lock 3 is connected to the lock back plate 5, and the other end is provided with the needle 7. The lock buckle 3 is provided with a lock slot, the lock tongue 1 extends into the lock slot to form a locking position, and the driving member can drive the lock tongue 1 to move out of the lock slot to form an unlock position, and push the lock tongue 1 to form an unlock position. The locking back plate 5 makes the accessory and the main body move toward each other and can drive the lancet 7 to move so that the trigger unit is triggered and a trigger signal is sent. In this way, the user can drive the needle 7 to move closer to the return spring 13 by pushing the lock back plate 5 and press the return spring 13 to move so that the two contacts of the trigger switch 2 are in contact. After being authorized, the driver can drive the lock tongue 1 to retract out of the lock slot to form an unlocking position. The driving member here is preferably a solenoid 9 .

On the basis of the above embodiment, in another embodiment of the present invention, as shown in FIG. 14 and FIG. 15 , the main body includes a lock body 22 , and the locking unit includes a lock tongue 1 and a driving member, and the lock tongue 1 is connected to the lock body 22 . The lock tongue 1 is fixed in the lock body 22 through the elastic member 27, and the accessory includes a buckle 23, the buckle 23 is provided with a pin, and the end of the pin is provided with a lock 3. The lock tongue 1 extends into the lock catch 3 to form a locking position, the driving member is electrically connected with the control unit, and the driving member can drive the lock tongue 1 to move out of the lock catch 3 to form an unlocking position ; Press the lock 3 to make the trigger unit trigger and issue a trigger signal. This structure is suitable for the latch 23 lock form. When the latch 23 is inserted into the lock body 22, the latch 1 extends into the latch 3 to form a locking position. Pressing the latch 3 drives the latch 1 to move toward each other so that the contact of the two triggers Touch triggering.

On the basis of the above-mentioned embodiment, in another embodiment of the present invention, as shown in FIG. 14 , the latch 23 is provided with two symmetrically arranged pins, and the locking unit includes at least two locking tongues 1 . The tongues 1 are respectively connected with the contacts of the triggering unit, and the latch 3 is pressed to drive at least one locking tongue 1 to move so that the two contacts of the triggering unit are connected to achieve triggering and send out a triggering signal.

On the basis of the above-mentioned embodiment, in another embodiment of the present invention, as shown in FIG. 15 , the driving member is an electromagnet 25 , and the electromagnet 25 is arranged between the two locking tongues 1 , and the locking tongues 1 is made of magnetic material, and the control unit can control the on-off of the electromagnet 25.

On the basis of the above embodiment, in another embodiment of the present invention, as shown in FIG. 20 , the accessory includes a connecting end and a locking end, the locking end of the accessory is provided with a lock 3 , and the locking unit includes a lock Tongue 1 and stopper 31, the lock tongue 1 and stopper 31 are arranged in the main body, the lock tongue 1 is hinged with the main body and can rotate along the hinge point, the stopper 31 Fixed on the lower part of the lock tongue 1 , the limiter 31 is provided with a retractable limit rod 32 for supporting the lock tongue 1 , and one end of the lock tongue 1 is connected to the limiter 31 Connected by a tension spring 34, the other end can extend into the lock catch 3 to form a locking position. When the limiting rod 32 is retracted downward, the tension spring 34 pulls the lock tongue 1 downward along the lock tongue 1 and the main body. At the same time, the attachment moves upward until the lock tongue 1 moves out of the lock catch 3 to form an unlocking position; press the attachment down, and the lock catch 3 drives the lock tongue 1 along its hinge with the main body. When the point is rotated, the end of the lock tongue 1 connected with the tension spring 34 lifts up and touches the trigger unit, so that the trigger unit triggers and sends out a trigger signal. This structure is suitable for padlock form.

On the basis of the above embodiment, in another embodiment of the present invention, the limiter 31 is a telescopic cylinder; or the limiter 31 is a rotary telescopic mechanism, which includes a drive motor, and the drive motor is connected to the The limit rod 32 is connected with power, and the control unit can control the forward and reverse rotation of the drive motor and drive the limit rod 32 to perform telescopic movement.

On the basis of the above embodiment, in another embodiment of the present invention, as shown in FIG. 8 and FIG. 9 , the locking unit includes a lock tongue 1 and a driving member, and the accessory includes a locking member and a locking member disposed on the locking member. Lock 3, the lock tongue 1 is connected with the driving member, the lock tongue 1 extends into the lock buckle 3 to form a locking position, and the driving member can drive the lock tongue 1 to move out of the lock buckle 3 to form a locking position. Unlock bit.

This structure is preferably suitable for a form that does not require a physical structure to achieve triggering, such as a form of power-on through the data line 16 inserted into the communication interface, but it can of course also be applied to other forms.

On the basis of the above-mentioned embodiment, in another embodiment of the present invention, as shown in FIG. 9 , the locking member is a locking plate, and one side of the locking plate 18 is hinged with the main body through a hinge and can be hinged along the locking plate 18 . The other side is provided with the lock catch 3.

The present invention also provides a method for locking and unlocking a tamper-proof device, the embodiment of which is as follows, including the following steps:

(1) Trigger: the trigger unit triggers and transmits the trigger signal to the control unit;

(2) Wake up: the control unit wakes up from the dormant state and starts to perform the unlocking operation;

(3) Authorization: the control unit sends an unlocking application to the authorization terminal 4 through wireless communication, and the authorization terminal 4 feeds back information to the control unit;

(4) Unlocking or maintaining locking: if the feedback information received by the control unit includes the unlocking authorization, the locking unit is controlled to enter the unlocking position, and if the feedback information received by the control unit does not include the unlocking authorization, the locking unit is maintained in the locking position.

(5) Dormancy: After completing step (4), the control unit enters a dormant state.

The anti-dismantling device of the present invention must be triggered by corresponding operations before unlocking. After the triggering, the control unit communicates with the authorization terminal 4 and obtains the unlocking authorization. Attachment operation. And before the trigger, the control unit is in a dormant state, and does not perform lock-related functions, such as applying for authorization, unlocking operations, etc., the control unit enters the active state after the trigger unit is touched, and then it can be considered that all power consumption related to the lock function is Zero, can effectively save energy consumption, improve product life and market application prospects, higher practicability, higher safety, and can effectively avoid illegal disassembly.

On the basis of the above embodiment, in another embodiment of the present invention, the hibernation in the step (5) refers to complete power off.

On the basis of the above-mentioned embodiment, in another embodiment of the present invention, in the step (1), before the triggering unit does not perform the triggering action, the control circuit for controlling the action of the locking unit is open circuit, and the After the triggering unit performs the triggering action, the control circuit forms an energized loop to realize the triggering; or the triggering in the step (1) causes the triggering switch 2 of the triggering unit to act, and at least one contact point on the triggering unit is electrically connected to the control unit. A voltage change occurs and this trigger signal is transmitted to the control unit.

On the basis of the above embodiment, in another embodiment of the present invention, the tamper-proof device includes a Bluetooth communication circuit 12, the authorization terminal 4 is an unlock authorization management platform, and the control unit communicates with the Bluetooth circuit through the Bluetooth circuit. The mobile phone terminal 28 is communicatively connected, and the mobile phone terminal 28 is communicatively connected with the unlocking authorization management platform. Before the step (1), the user who added the mobile phone terminal 28 on the unlocking authorization management platform opens the tamper-proof device. Unlocking authorization; also includes an authentication step in the step (2): the control unit controls to open the bluetooth, establishes a communication connection with the bluetooth matching of the mobile phone terminal 28 and sends the ID of the tamper-proof device to the mobile phone terminal 28 and asks for unlocking authorization , the mobile phone terminal 28 sends the ID of the tamper-resistant device to the unlocking authorization management platform and applies for unlocking authorization, and the unlocking authorization management platform receives the ID of the tamper-proof device sent by the user of the mobile terminal 28, and queries the mobile terminal 28 Whether the user has the authorization to open the tamper-resistant device with this ID, if yes, send the unlocking authorization to the mobile phone terminal 28, and send the unlocking authorization to the control unit through the mobile phone terminal 28;

The present invention also provides another method for locking and unlocking a tamper-resistant device. The embodiment is as follows, including the following steps:

(1) Triggering: triggering makes the two contacts of the trigger unit contact; if the contact time of the trigger lasts for a predetermined time or more, enter step (2), and if the contact time of the trigger is less than the predetermined time, enter step (3);

(2) Judgment or unbinding: The control unit checks whether the device is currently bound to the authorized terminal 4, and if so, starts the communication circuit 12, waits for the authorized terminal 4 to access and verifies the unbinding password, and unbinds if the verification passes. If the verification fails, enter step (5); if not, start the communication circuit 12, wait for the terminal to access and verify the binding password, if the verification passes, the binding terminal is the authorized terminal 4, and after binding, only the Use the authorized terminal 4 as the only terminal to operate the tamper-resistant device, and if the verification fails, enter step (5);

(3) Authorization: the control unit sends an unlocking application to the authorization terminal 4, and the authorization terminal 4 feeds back information to the control unit; if the feedback information received by the control unit includes the unlocking authorization, then enter step (4), otherwise enter step ( 5);

(4) Unlocking: the control unit controls the locking unit to enter the unlocking position for a predetermined time;

(5) Maintain locking: the control unit does not send a control signal to maintain the locking unit in the locked position.

In order to facilitate better understanding of the technical solutions of the present invention, the present invention provides several specific application examples:

Application Example 1: Locator

As shown in Figures 2 to 7, the locator can be used for the positioning of livestock such as cattle and sheep. Of course, it can also be used for other purposes. When in use, the needle 7 in the middle of the fixed back plate is pierced through the cow's ear and inserted into the needle hole in the locator body 6. , the lock tongue 1 in the main body 6 of the locator locks a circle of locks 3 on the needle to prevent the back plate from falling off, thereby fixing the locator. The main body is the positioner main body 6, and the accessory includes a thorn 7, a lock 3 and a lock back plate 5, one end of the lock 3 is connected with the lock back plate 5, and the other end is provided with the thorn 7. The locking unit includes a lock tongue 1, which is connected to the driving member, the lock catch 3 is provided with a lock groove, and the lock tongue 1 extends into the lock groove to form a locking position. The driving element can drive the locking tongue 1 to retract from the locking groove to form an unlocking position. The positioner main body 6 is provided with a positioning control module 10, a locking unit and a triggering unit. The positioning control module 10 includes a control circuit, a positioning circuit 11 and a driver. The control circuit and the positioning circuit 11 share the same control unit, so The control unit is connected in communication with the authorization management terminal through the communication circuit 12, the trigger unit includes a trigger switch 2, the trigger switch 2 and the driver are electrically connected to the control unit, and the trigger switch 2 includes two contacts , the return spring 13 and the conductive plate 14 arranged on the return spring 13, when no external force is applied, the contact is disconnected, and the lock back plate 5 is pushed to drive the thorn 7 to move toward the return spring 13 and close to the return spring 13. The return spring 13 is pressed to move so that the conductive plate 14 is in contact with the two contacts. After the trigger switch 2 is closed, the contacts connected to the control unit undergo a voltage change, and the voltage change is transmitted as a trigger signal to the The control unit wakes up the CPU8 (control unit) in the positioning and control circuit of the control unit to monitor this change, starts the NB-IoT communication (communication module), and applies to the unlocking authorization management platform (authorization terminal 4) for the authorization of unlocking; if the unlocking is obtained After authorization, the CPU 8 sends the action signal of the solenoid 9 (driver), retracts the latch 1 for two seconds, and the user can remove the accessory; if the unlocking authorization is not obtained, the action signal of the solenoid 9 is not sent, and the control unit enters the sleep state.

In this embodiment, the control of the lock is embedded in the positioning circuit 11, that is, because the positioning function circuit of the positioning ear tag is always working, but does not perform the relevant functions of the lock, such as applying for authorization, unlocking operations, etc., and then All power consumption related to the function of the lock can be considered as zero. When triggered, the part of the circuit related to the lock function starts to consume power (programs run by the MCU, open the communication module to apply for authorization to the platform, actuation of the lock tongue 1, etc.).

Application Example 2: Temperature Recorder

8 to 13, the main body in the temperature recorder is the temperature recorder main body 17. The temperature recorder main body 17 includes a control board 20, a temperature sensor 21, a driving member, a locking unit and a trigger unit. The control board 20 It includes a control unit, the trigger unit includes a USB interface 15, the USB interface 15, the temperature sensor 21 are electrically connected to the control board 20, the control unit is connected to the authorization terminal 4 through the USB interface 15 in communication, and the After the USB interface 15 is connected with the external power supply through the USB data line 16, the power supply signal in the USB port signal appears a power supply voltage, and the trigger signal is transmitted to the control unit. The control unit is electrically connected to the driver, and the accessories include A locking plate 18 and a locking buckle 3, one side of the locking plate 18 is hinged with the main body of the recorder through a hinge and can be rotated along its hinge point, and the other side is provided with the locking buckle 3, the locking unit It includes a lock tongue 1, the lock tongue 1 is connected with the driving member, the lock tongue 1 extends into the lock buckle 3 to form a locking position, and the driving member can drive the lock tongue 1 to retract the lock buckle. 3 forms the unlock bit.

The temperature recorder is fixed on the shoulder strap of the distribution box when the goods are distributed, and is used to record the ambient temperature during the distribution process. When it needs to be fixed, open the accessory, put the shoulder strap in the fixing belt slot 19 of the subject, and then close the accessory. After locking, the recorder can only slide on the shoulder strap, and cannot be opened and removed by external force. When the recorder needs to be removed, connect the USB cable to the recorder and the computer for unlocking authorization (authorization terminal 4, which is also an external power supply), the power signal in the USB port signal appears power supply voltage, wake up the control unit, and the control board in the temperature recorder 20. After detecting the connection of the USB cable, apply to the computer for unlocking authorization; if the authorization is obtained, retract the lock tongue 1, and the lock 3 is unlocked, and the user can open the unlocking plate 18 and remove the device; , the control panel 20 does not perform the operation of retracting the latch 1, and the control unit enters the sleep state.

Application Example 3: Pedometer

As shown in Figures 14 to 19, the pedometer is used to count the number of steps for the contestants, and the pedometer function is implemented inside the controller 24. In order to prevent players from cheating by removing the pedometer, the pedometer is designed in the form of a buckle 23 lock. The lock is divided into two parts: the buckle 23 and the lock body 22, both of which are provided with a slot for installing and fixing the bracelet, which is used to connect the two ends of the bracelet. After the bracelet is worn on the wrist, the buckle 23 is inserted into the lock body 22, and the player cannot open the lock of the buckle 23 by himself.

The main body of the pedometer is a pedometer main body, the pedometer main body is provided with a lock body 22, and the accessory includes a buckle 23, and the buckle 23 is provided with two symmetrically arranged pins. The end is provided with a lock 3, the locking unit includes at least two lock tongues 1, the lock tongues 1 are fixed in the lock body 22 by an elastic member 27, and the two contacts of the trigger are respectively connected with the two lock tongues. The lock tongue 1 is connected to each other, and the control unit is connected to the authorization terminal 4 through the communication circuit 12. The lock tongue 1 extends into the lock buckle 3 to form a locking position. Pressing the lock buckle 3 drives the two lock tongues. 1 The relative movement makes the two contacts contact, causing a voltage change in the contacts connected to the control unit, and the voltage change is transmitted to the control unit as a trigger signal, and the driving member is electrically connected to the control unit, so The driving member can drive the locking tongue 1 to retract the lock catch 3 to form an unlocking position; the driving member is an electromagnet 25, and the electromagnet 25 is arranged between the two locking tongues 1, and the lock The tongue 1 is made of a magnetic material, and the control unit can control the on-off of the electromagnet 25; or the lock body 22 and the buckle 23 are provided with connecting grooves for connecting the pedometer body.

Before using the pedometer, it needs to be bound with the authorized mobile phone (authorized terminal 4) through Bluetooth (communication module). After being bound, other mobile phones cannot be used to operate the pedometer; Terminal 4) Turn on the Bluetooth wireless communication for authorization, and pinch both sides of the lock 3 (the duration does not exceed 5 seconds) to make the trigger act to trigger the control unit to wake up and turn on Bluetooth, and request the unlocking authorization from the bound mobile phone through Bluetooth, and obtain the authorization The rear controller 24 (control unit) controls the actuating mechanism of the lock tongue 1 to retract the two pieces of the lock tongue 1. At this time, the latch 23 can be pulled out from the lock body 22 to unlock.

Procedure steps for binding and unbinding: pinch the latch 1 for more than 5 seconds, the controller 24 (control unit) is triggered to enter the binding mode; the controller 24 checks whether it is currently bound, if it has been bound , then start the Bluetooth communication, wait for the authorized device to access and verify the unbinding password, unbind if the verification passes, and end the operation if the verification fails; if it has not been bound, start the Bluetooth communication and wait for the phone to connect Enter and verify the binding password. If the verification passes, the mobile phone will be bound as an authorized device.

The following steps describe the workflow of the tamper-evident pedometer during one use:

1. Prepare the anti-disassembly pedometer, the buckle 23 and the lock body 22 are in a separated state, and the authorized device is not bound. Both the binding password and the unbinding password are 1234.

2. Insert the latch 23 into the lock body 22, and the latch 3 on the latch 23 squeezes the lock tongue 1, which drives the contact of the trigger to connect, and then triggers the controller 24. The controller 24 turns on the Bluetooth communication and waits for the Bluetooth of the mobile phone. access. At this time, open the Bluetooth communication of mobile phone A, search for the Bluetooth device "anti-disassembly pedometer" and connect it, enter the "binding password" 1234 printed on the pedometer box, and the pedometer receives and calibrates If the test is successful, the pedometer saves mobile phone A as a bound device. In the user interface of mobile phone A, the step count of this pedometer is displayed as 0.

3. The state where the buckle 23 is completely inserted into the lock body 22 is as shown in the figure below. Athletes wear this pedometer to start activities.

4. After the athlete finishes exercising, return to the staff and prepare to remove the pedometer. The staff turns on the mobile phone A to prepare to connect to the pedometer, its Bluetooth starts to search for the pedometer, and clicks "unlock" at the same time to prepare the pedometer for unlocking authorization, and then quickly pinch the buckles 23 on both sides of the lock body 22 with fingers to expose the pedometer part. Trigger action, wake up the controller 24, then the controller 24 turns on the bluetooth, the mobile phone A bluetooth is connected to the pedometer, and then the controller 24 requests the unlocking authorization from the mobile phone. After the authorization is successfully obtained, an action signal is sent to the electromagnet 25, and the two latches 1 are pulled together. In addition, the number of steps of the pedometer in the user interface of the mobile phone is 10,000 steps, and the operation of clearing the data is performed after recording.

5. The electromagnet 25 has completely attracted the latch 1, and the latch 3 can be pulled out.

6. The latch 23 is pulled out, the controller 24 stops after sending the action signal of the lock tongue 1 for 2s, and then the lock tongue 1 pops up, and the controller 24 enters the sleep state.

Application Example 4: IoT Padlock

As shown in Figures 20-23, in the IoT padlock, the main body is a lock body 30, and the accessory is a lock beam 29. The connecting end of the lock beam 29 is connected to the lock body 30 through a compression spring 33. The lock beam The locking end of 29 is provided with a lock catch 3. The locking unit includes a lock tongue 1 and a stopper 31. The lock tongue 1 and the stopper 31 are arranged in the lock body 30. The lock body 30 is hinged and can be rotated along the hinge point. The stopper 31 is fixed on the lower part of the lock tongue 1. A telescopic limit rod 32, one end of the lock tongue 1 is connected with the limiter 31 through a tension spring 34, and the other end can extend into the lock 3 to form a locking position. There are a control circuit and a communication circuit 12, the trigger unit includes a trigger, the trigger is arranged in the control circuit and is electrically connected to the control unit, and the lock beam 29 is pressed down, and the lock buckle 3 drives the When the lock tongue 1 rotates along its hinge point with the lock body 30, the end of the lock tongue 1 connected with the tension spring 34 is lifted up to touch the trigger and trigger the trigger switch 2 of the trigger to close, Further, the control circuit forms an energizing circuit, the control unit and the authorization terminal 4 are communicatively connected through the communication circuit 12 , and the tension spring 34 pulls the lock downward when the limit lever 32 is retracted downward. The tongue 1 rotates along its hinge point with the lock body 30, and at the same time, the compression pushes the lock beam 29 to move upward until the lock tongue 1 withdraws from the lock catch 3 to form an unlocking position.

The unlocking operation of the padlock is completed by itself, and the authentication operation must be performed before unlocking. The steps are:

1. On the unlocking authorization management platform, add the unlocking authorization for mobile phone user A to open an ID lock;

2. Turn on the Bluetooth communication, establish a connection with the mobile phone, send the lock ID to the mobile phone, and ask for the unlock password;

3. The mobile phone establishes contact with the unlocking authorization management platform, sends the lock ID to the management platform, and applies for the unlocking password;

4. The management platform receives the lock ID sent by mobile phone A, and finds that mobile phone A has the authorization to open the ID lock, so it sends the unlock password to mobile phone A;

5. Mobile phone A sends the unlocking password to the lock, and the lock verifies the unlocking password. If the verification is successful, the limiter 31 is controlled to enter the "unlocking position", the lock tongue 1 is displaced under the spring tension, and the restriction on the lock 3 is lifted. ; The lock beam 29 jumps off under the elastic force of the spring, and the unlocking is successful.

Since the lock is powered by its own battery, all power is turned off in the locked state. When the user needs to unlock, the lock beam 29 is pressed down for 2 seconds, causing the lock tongue 1 to turn over and trigger the trigger to start the control circuit. The authentication operation is performed after the control circuit is started. The trigger, the limiter 31 and the Bluetooth circuit are connected with the control circuit, and the control circuit is disconnected from the power supply in the non-operation state. The trigger is a spring switch, when the deadbolt 1 is turned over, it will cause the trigger switch 2 to close, and the switch will turn on the power to the control circuit. After the control circuit is powered on, the power supply self-locking circuit will be activated at the same time to ensure that the circuit itself is powered on when the switch is disconnected. First, judge whether the switch duration reaches 2 seconds. If it is, it is judged to perform unlocking, and then immediately turn on the Bluetooth communication and wait for the mobile phone. The unlocking password sent by Bluetooth access; after receiving and verifying the successful password, the controller 24 controls the action of the limiter 31, the motor of the limiter 31 rotates to retract the limit block, and at the same time the lock 3 is under the action of the spring tension Slowly enter the unlock position, when the lock 3 completely enters the unlock position, the lock beam 29 can be pulled out; after the limiter 31 enters the unlock position for 2 seconds, the controller 24 controls the limiter 31 to move, and the limiter 31 moves. The motor of 31 rotates in the reverse direction to extend the limit block, and the lock 3 is pushed into the locking position slowly. When the padlock is reactivated, it is only necessary to close the lock beam 29 and the lock body 30, and the lock tongue 1 will trigger the trigger when the lock beam 29 is pressed down. This action is not judged as an unlock command, and the power supply of the control circuit is turned off by immediately turning off the power supply self-locking circuit.

The lock beam 29 spring (compression spring 33 ) itself is not necessary. When the lock tongue 1 is opened, the user can manually pull out the lock beam 29 without a spring to pop out.

The following steps describe the one-time use process of the IoT padlock:

1. When the padlock is in the locked state, press down the lock beam 29, the trigger is triggered and lasts for more than 2 seconds. Before that, a lock with the lock ID of SUO has been added to the unlock authorization management platform, its password is password, and the account with the user name USER has been authorized to unlock.

2. The control circuit is powered on and running, and the duration of trigger switch 2 is measured for more than 2 seconds, and the Bluetooth is activated. The user opens the mobile APP and establishes a Bluetooth connection with the padlock. The APP uses the user name USER to log in to the unlocking authorization management platform; the padlock sends the lock ID: SUO to the mobile phone, the mobile phone sends this ID to the platform, and the platform finds that the lock allows Opened by the user USER, the unlock password password is sent to the mobile phone; the mobile phone sends this password to the padlock.

3. The controller 24 of the padlock verifies that the password is correct, so it controls the action of the limiter 31, the motor rotates to retract the limit block, and at the same time the lock 3 slowly enters the unlock position under the action of the spring tension. After fully entering the unlocking position, the locking beam 29 is ejected under the action of the spring force.

4. After the limiter 31 enters the unlock position for 2 seconds, the controller 24 controls the motor of the limiter 31 to reversely rotate to extend the limit block, and the latch 3 is slowly pushed into the lock position.

A battery is integrated in the lock body 22 of this IoT lock, and its circuit diagram is shown in Figure 23. When the lock is not pressed and triggered, the circuit in the lock is not powered on; when the lock is pressed, the circuit in the figure is triggered Switch 2 is closed, V+ is energized, and then VBUS is energized, the circuit is powered on, the MCU starts to work and immediately applies the Output signal to the power supply maintenance circuit 35, the power supply maintenance circuit 35 is turned on, and the battery + pole is connected to VBUS, In this way, even if the trigger switch 2 is disconnected from the VBUS, there is still electricity. The entire circuit remains powered on under the maintenance of the MCU's Output signal. The MCU executes the unlocking control program. At the same time, the V+ of the trigger switch 2 is sent to the input pin of the MCU to detect the state of the trigger switch 2. When the trigger switch 2 is disconnected When the Input pin is in a low-level state, when the trigger switch 2 is closed, the Input pin is in a high-level state. The MCU determines the duration of the trigger switch 2 by calculating the duration of this signal. When the MCU program is executed, the Output signal will be cancelled, so that the power supply maintenance circuit 35 will be cut off. If the trigger switch 2 is also disconnected, the VBUS point will lose power, and then the power supply of the entire circuit will be cut off, and the circuit will only be very weak. The leakage current exists, and the power of the battery is kept to the maximum extent.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (14)

1. A tamper-proof device, characterized by comprising a main body and an accessory, the main body comprising a locking unit, a control unit and a trigger unit, the control unit comprising a communication module, the accessory at least comprising a lock, the The lock catch is used in cooperation with the locking unit to lock the accessory on the main body. The locking unit is provided with a locking position and an unlocking position. When the accessory is combined with the main body, the lock catch is locked by the lock located in the locking position. The unit is limited and locked, and the locking unit is in an unlocked state when it is in the unlocked position; the control unit is electrically connected with the locking unit and the trigger unit, and the control unit can be communicated with a predetermined authorized terminal through the communication module. , the control unit communicates with the authorized terminal after receiving the trigger signal of the trigger unit and applies for unlocking, and the authorized terminal feeds back information to the control unit, if the feedback information received by the control unit includes the unlocking authorization, The locking unit is controlled to enter the unlocking position, and if the feedback information received by the control unit does not include the unlocking authorization, the locking unit is maintained at the locking position. 2 . The tamper-resistant device according to claim 1 , wherein the trigger unit is disposed inside the main body, the trigger unit comprises a trigger switch, and the trigger switch comprises at least two contacts, one of which The contact is electrically connected with the control unit, and the other contact is connected with the internal voltage source of the tamper-proof device, and the trigger switch can be closed or disconnected when the accessory and the main body move relative to each other , the closing of the trigger switch will cause a voltage change in the contacts connected to the control unit, and the voltage change is transmitted to the control unit as a trigger signal. 3. The tamper-proof device according to claim 1, wherein the tamper-proof device comprises a main function module, and a control circuit for controlling the action of the locking unit is embedded in the main function module , the control circuit and the main function module share the same control unit. 4 . The tamper-resistant device according to claim 1 , wherein before the triggering unit performs the triggering action, the control circuit for controlling the action of the locking unit is an open circuit, and the triggering unit performs the triggering action. 5 . Afterwards, the control circuit forms a power-on loop and triggers the control unit to work. 5. The tamper-proof device according to claim 2, wherein the trigger switch comprises two contacts, a return spring and a conductive plate arranged on the return spring, and the movement of the return spring is pressed to make all the The conductive plate is in contact with the two contacts, and the trigger switch is closed. 6 . The tamper-proof device according to claim 1 , wherein the trigger unit comprises a signal interface, the signal interface at least includes a power supply signal, the signal interface is electrically connected to the control unit, and the After the signal interface and the external power supply are connected through a data line, a power supply voltage appears in the power supply signal, and this is transmitted to the control unit as a trigger signal. 7. The detachable device according to any one of claims 1 to 5, wherein the locking unit comprises a lock tongue and a driving member, the lock tongue is connected with the driving member, and the driving member Electrically connected with the control unit, the accessory includes a thorn, a lock and a lock back plate, one end of the lock is connected with the lock back plate, and the other end is provided with the thorn, and the lock is provided with the thorn. There is a lock slot, the lock tongue extends into the lock slot to form a locking position, the driving member can drive the lock tongue to move out of the lock slot to form an unlock position, and push the lock back plate to make the accessory and the main body The opposite movement can drive the lancet to move, so that the trigger unit is triggered and a trigger signal is sent. 8. The detachable device according to any one of claims 1 to 5, wherein the main body comprises a lock body, the locking unit comprises a lock tongue and a driving member, the lock tongue and the driving member The lock tongue is fixed in the lock body by an elastic piece, the accessory includes a buckle, the buckle is provided with a pin, the end of the pin is provided with a lock, and the lock tongue extends into the lock body. The lock catch forms a locking position, the driving element is electrically connected with the control unit, and the driving element can drive the lock tongue to move out of the lock catch to form an unlocking position; pressing the lock catch causes the trigger unit to trigger and Send a trigger signal. 9. The detachable device according to any one of claims 1 to 5, wherein the accessory comprises a connecting end and a locking end, the locking end of the accessory is provided with a lock, and the locking The unit includes a lock tongue and a stopper, the lock tongue and the stopper are arranged in the main body, the lock tongue is hinged with the main body and can be rotated along the hinge point, and the stopper is fixed on the main body. On the lower part of the lock tongue, the limiter is provided with a retractable limit rod for supporting the lock tongue, one end of the lock tongue is connected with the limiter through a tension spring, and the other end can be Extending into the lock to form a locking position, when the limit rod is retracted downward, the tension spring pulls the lock tongue downward to rotate along its hinge point with the main body, and at the same time, the accessory moves upward until the The lock tongue moves out of the lock to form an unlocking position; when the accessory is pressed down, the lock tongue drives the lock tongue to rotate along the hinge point between the lock tongue and the main body, and the end of the lock tongue connected with the tension spring rises to touch Touching the trigger unit causes the trigger unit to trigger and issue a trigger signal. 10. The detachable device according to any one of claims 3 to 6, wherein the locking unit comprises a lock tongue and a driving member, and the accessory comprises a locking member and a locking member provided on the locking member. The locking tongue is connected with the driving member, the locking tongue extends into the locking buckle to form a locking position, and the driving member can drive the locking tongue to move out of the locking buckle to form an unlocking position. 11. A method for locking and unlocking a detachable device, characterized in that, comprising the steps of: (1) Trigger: the trigger unit triggers and transmits the trigger signal to the control unit; (2) Wake up: the control unit wakes up from the dormant state and starts to perform the unlocking operation; (3) Authorization: the control unit sends an unlocking application to the authorized terminal through wireless communication, and the authorized terminal feeds back information to the control unit; (4) unlocking or maintaining locking: if the feedback information received by the control unit includes the unlocking authorization, the control locking unit enters the unlocking position, and if the feedback information received by the control unit does not include the unlocking authorization, the locking unit is maintained in the locking position; (5) Dormancy: After completing step (4), the control unit enters a dormant state. 12 . The method for locking and unlocking a tamper-resistant device according to claim 11 , wherein in the step (1), before the triggering unit does not perform a triggering action, a method for controlling the action of the locking unit is performed. 13 . The control circuit is an open circuit, and after the triggering unit performs the triggering action, the control circuit forms an energized loop to realize the triggering; or the triggering in the step (1) causes the triggering switch of the triggering unit to act, and at least one of the triggering units is connected to the control unit. A voltage change occurs at the electrically connected contacts and this trigger signal is transmitted to the control unit. 13. The method for locking and unlocking a tamper-proof device according to claim 11 or 12, wherein the tamper-proof device comprises a Bluetooth communication circuit, the authorization terminal is an unlocking authorization management platform, and the control The unit is communicatively connected with a mobile phone terminal through a bluetooth circuit, and the mobile phone terminal is communicatively connected with the unlocking authorization management platform. The unlocking authorization of the dismantled device; the step (2) also includes an authentication step: the control unit controls to open the bluetooth, establishes a communication connection with the bluetooth of the mobile phone terminal, and sends the ID of the device that can be dismantled and the request to the mobile phone terminal. Unlocking authorization, the mobile terminal sends the ID of the tamper-resistant device to the unlocking authorization management platform and applies for unlocking authorization, and the unlocking authorization management platform receives the ID of the tamper-resistant device sent by the mobile terminal user, and queries the mobile terminal user. Whether there is an authorization to open the tamper-proof device with this ID, if yes, send the unlocking authorization to the mobile phone terminal, and the mobile phone terminal will send the unlocking authorization to the control unit; if not, do not perform relevant actions. 14. A method for locking and unlocking a tamper-proof device, characterized in that it comprises the following steps: (1) Triggering: triggering makes the two contacts of the trigger unit contact; if the contact time of the trigger lasts for a predetermined time or more, enter step (2), and if the contact time of the trigger is less than the predetermined time, enter step (3); (2) Judgment or unbinding: The control unit checks whether the device is currently bound to an authorized terminal, and if so, starts the communication circuit, waits for the authorized terminal to access and verifies the unbinding password. If the verification fails, enter step (5); if not, start the communication circuit, wait for the terminal to access and verify the binding password, if the verification passes, the binding terminal is an authorized terminal, and after binding, only the authorized terminal can be passed. Operate the tamper-resistant device as the only terminal, and if the verification fails, enter step (5); (3) Authorization: the control unit sends an unlocking application to the authorized terminal, and the authorized terminal feeds back information to the control unit; if the feedback information received by the control unit includes the unlocking authorization, then go to step (4), otherwise go to step (5) ; (4) Unlocking: the control unit controls the locking unit to enter the unlocking position for a predetermined time; (5) Maintain locking: the control unit does not send a control signal to maintain the locking unit in the locked position.

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