阅读说明：本技术 防拆装置及电子设备 (Anti-dismounting device and electronic equipment ) 是由 吴超 周招娣 张强 于 2021-07-01 设计创作，主要内容包括：本申请是关于一种防拆装置及电子设备,所述防拆装置包括：标签件,贴设于防拆对象上,能够导电；工作电路,所述标签件电连接于所述工作电路中；电压记录单元,用于对所述标签件上至少一检测点的电压进行检测,并在所述检测点电压变化时记录变化电压及电压变化时刻。本申请通过在防拆对象上设置标签件,并对标签件的电压进行实时检测,通过标签件的电压变化,可以对标签件被破坏的时间或破坏事件等进行记录,能够实现电子设备的防拆,且成本较低。(The application relates to a prevent dismouting and electronic equipment, the dismouting prevention device includes: the tag piece is attached to the anti-dismounting object and can conduct electricity; the label piece is electrically connected in the working circuit; and the voltage recording unit is used for detecting the voltage of at least one detection point on the label piece and recording the change voltage and the voltage change moment when the voltage of the detection point changes. This application is through setting up label spare on preventing tearing open the object to carry out real-time detection to label spare's voltage, change through label spare's voltage, can record label spare destroyed time or destruction incident etc. can realize tearing open of preventing of electronic equipment, and the cost is lower.)

1. A tamper-evident device, the device comprising:

the tag piece is attached to the anti-dismounting object and can conduct electricity;

the label piece is electrically connected in the working circuit;

and the voltage recording unit is used for detecting the voltage of at least one detection point on the label piece and recording the change voltage and the voltage change moment when the voltage of the detection point changes.

2. The apparatus of claim 1, further comprising:

and the anti-counterfeiting label is attached to the label piece and the anti-dismantling object.

3. The device of claim 2, wherein the anti-counterfeiting sticker is provided with a bar code for identifying the tamper-evident object or the label piece.

4. The device of claim 1, wherein said tag member is a tape-like structure having a retaining ring disposed at least one end thereof.

5. The apparatus of claim 1, wherein the operational circuitry comprises system common ground circuitry in a host to which the tamper-resistant object belongs.

6. The apparatus of claim 3, wherein the barcode comprises a two-dimensional code.

7. The device of claim 2, wherein the security sticker is made of self-adhesive paper.

8. A device according to any one of claims 1 to 7, wherein the tag member is made of an electrically conductive metal.

9. An electronic device comprising the tamper-evident device of any one of claims 1 to 8.

Technical Field

The present invention relates to a tamper device, and more particularly, to a tamper device and an electronic apparatus that can be applied to an important component of an electronic apparatus.

Background

At present, electronic equipment and the like fail after being sold for a period of time due to the fact that the electronic equipment and the like are not designed to be prevented from being disassembled, a seller cannot identify whether the product is an assembling machine or whether a customer changes hardware without permission to cause product failure and the like, so that inconvenience is brought to after-sale service of customer service and maintenance of maintenance personnel, and maintenance cost is high. Tamper resistant designs for electronic equipment are particularly desirable in order to provide better after-market service and product quality monitoring.

At present, important components and parts in electronic equipment are generally sealed in a silica gel sealing key device mode, although the sealing effect is good, the sealing mode can be cracked in a solvent mode, the processing difficulty is high, once the sealing mode is damaged by other modes, the key components and parts are easily damaged, and the electronic equipment is difficult to repair. And the anti-dismantling mode is realized by a label pasting mode, and related components are sealed by adopting a seal principle, but the cracking difficulty of the mode is low, and the label pasting mode can be replaced by the same label, so that the anti-dismantling effect is poor. At present, an anti-dismantling mode of an encryption chip or a light sensing chip is adopted, although the encryption chip mode is difficult to break so as to achieve the anti-dismantling effect, the cost is relatively high.

Disclosure of Invention

In view of this, the present application provides a detachment prevention device and an electronic apparatus, so as to solve the problems of high cost and poor detachment prevention effect of the detachment prevention device.

According to a first aspect of embodiments of the present application, there is provided a tamper-evident device, the device comprising:

the tag piece is attached to the anti-dismounting object and can conduct electricity;

the label piece is electrically connected in the working circuit;

and the voltage recording unit is used for detecting the voltage of at least one detection point on the label piece and recording the change voltage and the voltage change moment when the voltage of the detection point changes.

In some embodiments, the apparatus further comprises:

and the anti-counterfeiting label is attached to the label piece and the anti-dismantling object.

In some embodiments, a bar code is disposed on the anti-counterfeiting label, and the bar code is used for identifying the anti-tamper object or the label piece.

In some embodiments, the tag member is a tape-like structure having a retaining ring disposed on at least one end of the tape-like structure.

In some embodiments, the working circuit comprises a system common ground circuit in a host to which the tamper resistant object belongs.

In some embodiments, the barcode comprises a two-dimensional code.

In some embodiments, the anti-counterfeiting label is made of self-adhesive paper.

In some embodiments, the tag member is made of a conductive metal.

According to a second aspect of the embodiments of the present application, there is provided an electronic device including the tamper-evident device.

In the embodiment of the application, the tag piece with the conducting function is arranged on the anti-tamper object, the tag piece is connected into the working circuit, and whether the tag piece is detached or not is determined by detecting the voltage of the detection point on the tag piece, so that whether the tag piece on the anti-tamper object is damaged or not is determined, and whether the anti-tamper object is damaged or not is determined. According to the technical scheme, the label piece is arranged on the anti-dismantling object, the voltage of the label piece is detected in real time, the time or damage event and the like of the label piece, which is damaged, can be recorded through the voltage change of the label piece, the anti-dismantling of the electronic equipment can be realized, and the cost is low.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a schematic view of the structure of the tamper-evident device according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a tag member according to an embodiment of the present application.

Detailed Description

The essence of the technical solution of the embodiments of the present application is explained in detail below with reference to the accompanying drawings.

Fig. 1 is a schematic view of a composition structure of an anti-tamper device according to an embodiment of the present application, and as shown in fig. 1, the anti-tamper device according to the embodiment of the present application includes:

a tag member attached to the tamper-proof object 105, the tag member being capable of conducting electricity;

the label piece is electrically connected in the working circuit;

and the voltage recording unit is used for detecting the voltage of at least one detection point on the label piece and recording the change voltage and the voltage change moment when the voltage of the detection point changes.

In fig. 1, a removal signal collecting line is arranged on a circuit to collect the voltage of at least one detection point on the label piece so as to determine the voltage change on the label piece, and according to the collected voltage change condition, whether the label piece is removed from the removal-proof object can be determined.

As an implementation manner, the working circuit may be a circuit in the electronic device to which the tamper-proof object belongs, such as a common ground circuit in the electronic device. In this application embodiment, the working circuit may also be a dedicated circuit, and is specially used for providing and detecting a removal signal of the anti-removal device, for example, a corresponding power supply is provided outside the electronic device, and the tag piece of this application embodiment is connected to this dedicated power supply, so as to detect the voltage at the detection point on the tag piece. The tamper-proof object may be an object such as a power supply, a fan, a control panel, or a case of an electronic device.

As shown in fig. 1, the working circuit according to the embodiment of the present application includes a power supply input side VCC, and the other end is grounded, and the working circuit includes a working element 101, and the working element 101 is connected to the working circuit. These working components include resistors, indicator lights, and the like.

Fig. 2 is a schematic structural diagram of a tag member according to an embodiment of the present invention, and as shown in fig. 2 and fig. 1, the tag member according to an embodiment of the present invention is a tape-shaped structure, and at least one end of the tape-shaped structure is provided with a positioning ring 102. In the embodiment of the application, the label is a belt-shaped body with positioning rings 102 at two ends, the positioning rings 102 for fixing are arranged on two sides of the belt-shaped body, the positioning holes 103 are formed in the positioning rings 102, through the positioning holes 103, the label can be attached to the anti-detachment object, the protrusion arranged on the anti-detachment object is arranged by the positioning holes 103, the label can be fixed to the anti-detachment object by other modes such as riveting, the label can be better attached to the anti-detachment object, and the label is not easy to detach.

In the embodiment of the present application, since the tag element needs to be connected to the operating circuit, the material for making the tag element needs to be conductive, such as conductive paper, or made of semiconductor material or metal material. In consideration of the requirement of the tag member to have a certain damage resistance, the tag member may be made of a metal material, such as a copper foil, an aluminum foil, a tin foil, copper, iron, aluminum, or other conductive materials.

In this application embodiment, the tamper evident device may further include: and the anti-counterfeiting label 104 is attached to the label piece and the anti-dismantling object 105. The anti-counterfeiting sticker 104 can be made of self-adhesive paper, the anti-counterfeiting sticker 104 can be a sticker printed with a special pattern, and the special pattern can be characters and/or graphics so as to be not easily recovered when the anti-counterfeiting sticker is torn down, or the anti-counterfeiting sticker is adhered by a strong adhesive so as to be not easily cleaned up when the anti-counterfeiting sticker 104 is torn down so as to prevent the anti-counterfeiting sticker 104 from being replaced.

In the embodiment of the present application, in order to make the anti-counterfeit label 104 have better anti-counterfeit property and uniqueness, a barcode is further disposed on the anti-counterfeit label 104, and the barcode is used for identifying the anti-tamper object or the label piece 104. That is, even if the label piece 104 can be replaced, it is difficult to make the same bar code due to the presence of the bar code. As one implementation, the barcode may be a two-dimensional code.

As shown in fig. 1, in the embodiment of the present application, the tag device of the embodiment of the present application may be connected to the common ground circuit by using the characteristic of the common ground circuit of the system in the host of the electronic device to which the tamper-proof object belongs, a voltage detection circuit is disposed on the tag device to detect the voltage on the tag device, a system storage unit of the electronic device to which the tamper-proof object belongs, such as a flash or an Electrically Erasable Programmable Read Only Memory (EEPROM), is used to store the voltage detection result on the tag device, and the time, the voltage source, and the voltage state of the malfunction are recorded by recognizing the voltage malfunction on the tamper-proof object, so as to be used for checking when the tamper-proof object is destroyed.

In the embodiment of the application, interfaces can be reserved or not reserved in the hardware design stage of electronic equipment and the like, the anti-dismantling tag piece in the embodiment of the application can be deployed in an active and passive mode, and whether the anti-dismantling object is damaged or not can be determined by recording and storing the voltage condition on the tag piece.

According to the anti-dismounting device provided by the embodiment of the application, the label piece with the conducting function is arranged on the anti-dismounting object, the label piece is connected into the working circuit, and the voltage of the detection point on the label piece is detected to determine whether the label piece on the anti-dismounting object is damaged or not, so that whether the anti-dismounting object is damaged or not is determined. Through set up label spare on preventing tearing open the object to carry out real-time detection to the voltage of label spare, through the voltage variation of label spare, can carry out the record to destroyed time or destruction incident etc. of label spare, can realize electronic equipment prevent tearing open, and the cost is lower.

The embodiment of the application also describes an electronic device, and the electronic device is provided with the anti-dismounting device of the embodiment.

The foregoing describes the general principles of the present application in conjunction with specific embodiments, however, it is noted that the advantages, effects, etc. mentioned in the present application are merely examples and are not limiting, and they should not be considered essential to the various embodiments of the present application. Furthermore, the foregoing disclosure of specific details is for the purpose of illustration and description and is not intended to be limiting, since the foregoing disclosure is not intended to be exhaustive or to limit the disclosure to the precise details disclosed.

The block diagrams of devices, apparatuses, systems referred to in this application are only given as illustrative examples and are not intended to require or imply that the connections, arrangements, configurations, etc. must be made in the manner shown in the block diagrams. These devices, apparatuses, devices, systems may be connected, arranged, configured in any manner, as will be appreciated by those skilled in the art. Words such as "including," "comprising," "having," and the like are open-ended words that mean "including, but not limited to," and are used interchangeably therewith. The words "or" and "as used herein mean, and are used interchangeably with, the word" and/or, "unless the context clearly dictates otherwise. The word "such as" is used herein to mean, and is used interchangeably with, the phrase "such as but not limited to".

It should also be noted that in the devices, apparatuses, and methods of the present application, the components or steps may be decomposed and/or recombined. These decompositions and/or recombinations are to be considered as equivalents of the present application.

The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the application. Thus, the present application is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The foregoing description has been presented for purposes of illustration and description. Furthermore, the description is not intended to limit embodiments of the application to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof.