CN110823277A - An equipment anti-dismantling device and equipment with anti-dismantling function - Google Patents
An equipment anti-dismantling device and equipment with anti-dismantling functionDownload PDFInfo
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Abstract
Translated fromChinese
Description
Translated fromChinese技术领域technical field
本发明涉及防拆检测领域，特别是涉及一种设备防拆装置及具有防拆功能的设备。The invention relates to the field of tamper-proof detection, in particular to an equipment tamper-proof device and a device with tamper-proof function.
背景技术Background technique
目前，对于一些保密型设备的生产厂商来说，设备的功能信息保密性能极为重要，若设备被他人拆卸，很可能造成功能信息的泄漏，同时也无法保证设备此时的应用安全，所以，为了防止设备被拆卸，设备防拆装置逐渐发展起来。现有技术中，有两种设备防拆装置：第一种，物理防拆装置，如采用高强度的结构锁防止设备被他人拆卸，但是，该物理防拆装置无法检测到设备是否被拆卸；第二种，电检测回路防拆装置，其利用电气接触方式检测设备是否被拆卸，但是，该电检测回路防拆装置存在断电后无法检测的风险，从而导致设备的功能信息保密性能较差、应用安全性能较低。At present, for some manufacturers of confidential equipment, the confidentiality of the functional information of the equipment is extremely important. If the equipment is disassembled by others, it is likely to cause leakage of functional information, and at the same time, the application security of the equipment cannot be guaranteed at this time. Therefore, in order to To prevent equipment from being disassembled, equipment anti-disassembly devices have been gradually developed. In the prior art, there are two kinds of anti-disassembly devices: the first is a physical anti-disassembly device, such as a high-strength structural lock to prevent the equipment from being disassembled by others, but the physical anti-disassembly device cannot detect whether the equipment is disassembled; The second is the anti-disassembly device of the electrical detection circuit, which uses electrical contact to detect whether the device is disassembled. However, the anti-disassembly device of the electrical detection circuit has the risk of being unable to detect after the power is turned off, resulting in poor confidentiality of the functional information of the device. , Application security performance is low.
因此，如何提供一种解决上述技术问题的方案是本领域的技术人员目前需要解决的问题。Therefore, how to provide a solution to the above technical problem is a problem that those skilled in the art need to solve at present.
发明内容SUMMARY OF THE INVENTION
本发明的目的是提供一种设备防拆装置及具有防拆功能的设备，即使在常规供电电源断电后也可以继续检测，从而提高了设备的功能信息保密性能及应用安全性能。The purpose of the present invention is to provide an equipment anti-disassembly device and a device with anti-disassembly function, which can continue to detect even after the conventional power supply is cut off, thereby improving the function information confidentiality performance and application security performance of the equipment.
为解决上述技术问题，本发明提供了一种设备防拆装置，设于设备内部，包括：In order to solve the above-mentioned technical problems, the present invention provides an equipment anti-disassembly device, which is located inside the equipment and includes:
输出端与所述设备中控制器连接的防拆检测电路，用于在所述控制器的常规供电电源供电时实时检测所述设备是否被拆卸，以便于所述控制器在接收到所述设备被拆卸的检测结果后不再执行正常的运行时序；A tamper-proof detection circuit whose output end is connected to the controller in the device is used to detect whether the device is disassembled in real time when the conventional power supply of the controller is powered, so that the controller receives the device After the disassembled test results, the normal operation sequence is no longer executed;
备电电路，用于在所述常规供电电源断电后，为所述防拆检测电路供电，以便于所述防拆检测电路继续实时检测；并为所述控制器提供其接收设备被拆卸的检测结果时所需的电能。The backup power circuit is used to supply power to the tamper-proof detection circuit after the conventional power supply is cut off, so that the tamper-proof detection circuit can continue to detect in real time; The power required to detect the result.
优选地，所述备电电路包括第一二极管、可充电电池、可控开关及第二二极管；其中：Preferably, the backup power circuit includes a first diode, a rechargeable battery, a controllable switch and a second diode; wherein:
所述第一二极管的阳极与所述常规供电电源的输出端连接，所述第一二极管的阴极分别与所述可充电电池的正极、所述防拆检测电路的供电端及所述可控开关的第一端连接，所述可充电电池的负极接地，所述可控开关的第二端与所述第二二极管的阳极连接，所述第二二极管的阴极与所述控制器的供电端连接；The anode of the first diode is connected to the output end of the conventional power supply, and the cathode of the first diode is respectively connected to the anode of the rechargeable battery, the power supply end of the tamper-proof detection circuit and the The first end of the controllable switch is connected to the ground, the negative electrode of the rechargeable battery is grounded, the second end of the controllable switch is connected to the anode of the second diode, and the cathode of the second diode is connected to the ground. the power supply end of the controller is connected;
则所述防拆检测电路具体用于当检测到所述设备被拆卸时，控制所述可控开关闭合且输出被拆检测结果至控制器，以便于所述备电电路在所述常规供电电源断电时，为所述控制器提供此时接收所述被拆检测结果所需的电能。Then the anti-disassembly detection circuit is specifically used to control the controllable switch to close and output the disassembly detection result to the controller when it is detected that the device is disassembled, so that the backup power circuit can be used in the conventional power supply. When the power is turned off, the controller is provided with the electric power required to receive the dismantled detection result at this time.
优选地，所述备电电路还包括限流电阻和滤波电容；其中：Preferably, the backup power circuit further includes a current limiting resistor and a filter capacitor; wherein:
所述限流电阻的第一端与所述常规供电电源的输出端连接，所述限流电阻的第二端与所述第一二极管的阳极连接，所述滤波电容的第一端与所述第二二极管的阴极连接，所述滤波电容的第二端接地。The first end of the current limiting resistor is connected to the output end of the conventional power supply, the second end of the current limiting resistor is connected to the anode of the first diode, and the first end of the filter capacitor is connected to the anode of the first diode. The cathode of the second diode is connected, and the second end of the filter capacitor is grounded.
优选地，所述可控开关具体为固态继电器，则所述可控开关的第一端及第二端一一作为所述固态继电器的两个输出受控端；所述防拆检测电路包括固定于所述设备外壳侧的金属贴片、电感开关电路、第一限流电阻、开关管、第一光电耦合器、第二光电耦合器、放电二极管及第二限流电阻；Preferably, the controllable switch is specifically a solid state relay, and the first end and the second end of the controllable switch serve as two output controlled ends of the solid state relay; the tamper-proof detection circuit includes a fixed a metal patch, an inductive switch circuit, a first current limiting resistor, a switch tube, a first optocoupler, a second optocoupler, a discharge diode, and a second current limiting resistor on the casing side of the device;
所述第一光电耦合器包括第一发光二极管和第一光敏三极管，所述第二光电耦合器包括第二发光二极管和第二光敏三极管，所述防拆检测电路的供电端包括第一供电端、第二供电端、第三供电端及第四供电端；其中：The first photocoupler includes a first light-emitting diode and a first phototransistor, the second photocoupler includes a second light-emitting diode and a second phototransistor, and the power supply terminal of the tamper-proof detection circuit includes a first power supply terminal , the second power supply terminal, the third power supply terminal and the fourth power supply terminal; wherein:
所述电感开关电路的供电端作为其第一供电端，所述电感开关电路的输出端与所述开关管的控制端连接，所述开关管的第一端与所述第一限流电阻的第一端连接，所述第一限流电阻的第二端作为其第二供电端，所述开关管的第二端与所述第一发光二极管的阳极连接，所述第一发光二极管的阴极与所述第二发光二极管的阳极连接，所述第二发光二极管的阴极接地，所述第一光敏三极管的集电极分别与所述固态继电器的第一输入控制端及所述放电二极管的阳极连接，所述固态继电器的第二输入控制端与所述放电二极管的阴极连接，其公共端作为其第三供电端，所述第一光敏三极管的发射极接地，所述第二光敏三极管的集电极与所述第二限流电阻的第一端连接，其公共端作为其输出端，所述第二限流电阻的第二端作为其第四供电端，所述第二光敏三极管的发射极接地；The power supply end of the inductance switch circuit is used as its first power supply end, the output end of the inductance switch circuit is connected to the control end of the switch tube, and the first end of the switch tube is connected to the first current limiting resistor. the first end is connected, the second end of the first current limiting resistor is used as its second power supply end, the second end of the switch tube is connected to the anode of the first light-emitting diode, and the cathode of the first light-emitting diode is connected to the anode of the second light-emitting diode, the cathode of the second light-emitting diode is grounded, and the collector of the first phototransistor is respectively connected to the first input control terminal of the solid state relay and the anode of the discharge diode , the second input control terminal of the solid state relay is connected to the cathode of the discharge diode, and its common terminal is used as its third power supply terminal, the emitter of the first phototransistor is grounded, and the collector of the second phototransistor It is connected to the first end of the second current limiting resistor, its common end is used as its output end, the second end of the second current limiting resistor is used as its fourth power supply end, and the emitter of the second phototransistor is grounded ;
所述电感开关电路用于感测自身与所述金属贴片的距离，当二者之间的距离大于预设感测距离时，控制所述开关管闭合。The inductive switch circuit is used for sensing the distance between itself and the metal patch, and when the distance between the two is greater than a preset sensing distance, the switch tube is controlled to be closed.
优选地，所述备电电路包括环境能源装置、与所述环境能源装置匹配的能量采集器和充电电池；其中：Preferably, the backup power circuit includes an environmental energy device, an energy harvester matched with the environmental energy device, and a rechargeable battery; wherein:
所述能量采集器的第一输入端与所述常规供电电源的输出端连接、第二输入端与所述环境能源装置连接、输出端分别与所述防拆检测电路的供电端及所述控制器的供电端连接、充电端与所述充电电池的正极连接，所述充电电池的负极接地；The first input end of the energy harvester is connected to the output end of the conventional power supply, the second input end is connected to the environmental energy device, and the output end is respectively connected to the power supply end of the tamper-proof detection circuit and the control The power supply end of the device is connected, the charging end is connected to the positive electrode of the rechargeable battery, and the negative electrode of the rechargeable battery is grounded;
所述能量采集器用于将所述环境能源装置收集的能量转化为电能存储起来，以在所述常规供电电源断电后自动维持所述防拆检测电路和所述控制器的供电需求。The energy harvester is used for converting the energy collected by the environmental energy device into electrical energy and storing it, so as to automatically maintain the power supply requirements of the tamper-proof detection circuit and the controller after the conventional power supply is cut off.
优选地，所述环境能源装置具体为光伏电池或磁性源收集装置。Preferably, the environmental energy device is specifically a photovoltaic cell or a magnetic source collection device.
优选地，所述防拆检测电路包括固定于所述设备外壳侧的金属贴片及电感开关电路；其中：Preferably, the tamper-proof detection circuit includes a metal patch and an inductive switch circuit fixed on the side of the device casing; wherein:
所述电感开关电路的输出端作为所述防拆检测电路的输出端，用于感测自身与所述金属贴片的距离，当二者之间的距离大于预设感测距离时，确定所述设备被拆卸，并将所述设备被拆卸的检测结果发送至所述控制器。The output end of the inductance switch circuit is used as the output end of the tamper-proof detection circuit to sense the distance between itself and the metal patch. When the distance between the two is greater than the preset sensing distance, determine the distance between the two. The device is disassembled, and the detection result of the disassembly of the device is sent to the controller.
为解决上述技术问题，本发明还提供了一种具有防拆功能的设备，包括控制器，还包括上述任一种设备防拆装置。In order to solve the above technical problems, the present invention also provides a device with anti-disassembly function, including a controller, and any of the above-mentioned equipment anti-disassembly devices.
优选地，所述控制器包括CPU、存储电路及具有单独供电电源的时钟电路；Preferably, the controller includes a CPU, a storage circuit and a clock circuit with a separate power supply;
所述CPU分别与所述时钟电路和所述存储电路连接，具体用于在接收到所述设备被拆卸的检测结果后，读取所述时钟电路此时的时间标记，并将所述时间标记、被拆动作标记及设备编号存储至所述存储电路，以在所述存储电路保存设备拆卸信息的条件下不再执行正常的运行时序。The CPU is respectively connected with the clock circuit and the storage circuit, and is specifically configured to read the time stamp of the clock circuit at this time after receiving the detection result that the device is disassembled, and store the time stamp. , The dismantled action flag and the device number are stored in the storage circuit, so that the normal operation sequence is no longer executed under the condition that the device disassembly information is stored in the storage circuit.
优选地，该设备还包括与所述CPU连接的通信电路；Preferably, the device further comprises a communication circuit connected with the CPU;
所述CPU还用于利用所述通信电路将所述设备拆卸信息上传至上位机，以便于设备生产厂商通过所述上位机及所述CPU擦除所述存储电路保存的设备拆卸信息，以恢复所述设备的正常运行。The CPU is also used to upload the device disassembly information to the host computer by using the communication circuit, so that the equipment manufacturer can erase the device disassembly information saved by the storage circuit through the host computer and the CPU to restore the device disassembly information. normal operation of the device.
本发明提供了一种设备防拆装置，设于设备内部，包括：输出端与设备中控制器连接的防拆检测电路，用于在控制器的常规供电电源供电时实时检测设备是否被拆卸，以便于控制器在接收到设备被拆卸的检测结果后不再执行正常的运行时序；备电电路，用于在常规供电电源断电后，为防拆检测电路供电，以便于防拆检测电路继续实时检测；并为控制器提供其接收设备被拆卸的检测结果时所需的电能。The invention provides an anti-disassembly device for equipment, which is arranged inside the equipment and includes: an anti-disassembly detection circuit whose output end is connected to a controller in the equipment, and is used for real-time detection of whether the equipment is disassembled when the conventional power supply of the controller supplies power, So that the controller will no longer execute the normal operation sequence after receiving the detection result of the device being disassembled; the backup power circuit is used to supply power to the tamper-proof detection circuit after the conventional power supply is cut off, so that the tamper-proof detection circuit can continue to be real-time detection; and provide the controller with the power it needs to receive the detection result of the device being disassembled.
与现有技术中的设备防拆装置相比，本申请的设备防拆装置包括防拆检测电路和备电电路，其中，防拆检测电路可以实时检测设备是否被拆卸；备电电路可以在设备的常规供电电源断电的情况下，为防拆检测电路继续供电，使防拆检测电路可以继续检测，而且，由于备电电路的存在，控制器在常规供电电源断电的情况下也可以接收到设备被拆卸的检测结果，从而不再执行正常的运行时序，以保护设备的应用安全及保密设备的功能信息。可见，本申请的设备防拆装置即使在常规供电电源断电后也可以继续检测，从而提高了设备的功能信息保密性能及应用安全性能。Compared with the equipment tamper-proof device in the prior art, the equipment tamper-proof device of the present application includes a tamper-proof detection circuit and a backup power circuit, wherein the tamper-proof detection circuit can detect whether the equipment is detached in real time; When the conventional power supply is cut off, the tamper detection circuit will continue to supply power, so that the tamper detection circuit can continue to detect. Moreover, due to the existence of the backup power circuit, the controller can also receive power when the conventional power supply is cut off. To the detection result that the device is disassembled, the normal running sequence is no longer executed, so as to protect the application security of the device and keep the functional information of the device secret. It can be seen that the device anti-dismantling device of the present application can continue to detect even after the conventional power supply is cut off, thereby improving the functional information confidentiality performance and application security performance of the device.
本发明还提供了一种具有防拆功能的设备，与上述设备防拆装置具有相同的有益效果。The present invention also provides a device with anti-disassembly function, which has the same beneficial effects as the above-mentioned device anti-disassembly device.
附图说明Description of drawings
为了更清楚地说明本发明实施例中的技术方案，下面将对现有技术和实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the prior art and the accompanying drawings required in the embodiments. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.
图1为本发明提供的一种设备防拆装置的实施例一的结构示意图；FIG. 1 is a schematic structural diagram of
图2为本发明提供的一种设备防拆装置的实施例二的结构示意图；2 is a schematic structural diagram of Embodiment 2 of a device for preventing dismantling of equipment provided by the present invention;
图3为本发明提供的一种如图2所示防拆检测电路的结构示意图；3 is a schematic structural diagram of a tamper-proof detection circuit shown in FIG. 2 provided by the present invention;
图4为本发明提供的一种如图3所示防拆检测电路的具体结构示意图；Fig. 4 is a specific structural schematic diagram of a tamper-proof detection circuit shown in Fig. 3 provided by the present invention;
图5为本发明提供的一种设备防拆装置的实施例三的结构示意图；5 is a schematic structural diagram of Embodiment 3 of a device for preventing dismantling of equipment provided by the present invention;
图6为本发明提供的一种具有防拆功能的设备的结构示意图。FIG. 6 is a schematic structural diagram of a device with a tamper-proof function provided by the present invention.
具体实施方式Detailed ways
本发明的核心是提供一种设备防拆装置及具有防拆功能的设备，即使在常规供电电源断电后也可以继续检测，从而提高了设备的功能信息保密性能及应用安全性能。The core of the invention is to provide an equipment anti-disassembly device and a device with anti-disassembly function, which can continue to detect even after the conventional power supply is cut off, thereby improving the function information confidentiality performance and application security performance of the equipment.
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
请参照图1，图1为本发明提供的一种设备防拆装置的实施例一的结构示意图。Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of
该设备防拆装置设于设备内部，包括：The equipment anti-dismantling device is installed inside the equipment, including:
输出端与设备中控制器连接的防拆检测电路1，用于在控制器的常规供电电源供电时实时检测设备是否被拆卸，以便于控制器在接收到设备被拆卸的检测结果后不再执行正常的运行时序；The
备电电路2，用于在常规供电电源断电后，为防拆检测电路1供电，以便于防拆检测电路1继续实时检测；并为控制器提供其接收设备被拆卸的检测结果时所需的电能。The backup power circuit 2 is used to supply power to the
需要提前说明的是，本申请中的预设是提前设置好的，只需要设置一次，除非根据实际情况需要修改，否则不需要重新设置。It should be noted in advance that the presets in this application are set in advance and only need to be set once, and do not need to be set again unless they need to be modified according to the actual situation.
具体地，本申请提供的设备防拆装置包括防拆检测电路1和备电电路2，其工作原理为：Specifically, the device anti-dismantling device provided by this application includes an
1)设备所包含的常规供电电源在正常工作的情况下，其输出的电能供控制器和防拆检测电路1使用，此时控制器处于正常工作状态，防拆检测电路1处于实时检测状态；防拆检测电路1用来实时检测设备是否被拆卸，并将检测结果发送至控制器，控制器若接收到设备被拆卸的检测结果，则不再执行正常的运行时序(即拆卸保护措施：只要控制器存储有设备被拆卸的相关信息，控制器便不执行正常的运行时序，也就是“不再”的含义)，从而防止了设备功能信息的泄露；控制器若接收到设备未被拆卸的检测结果，则对该检测结果不做处理。由于防拆检测电路1检测到设备被拆卸时，控制器不再执行正常的运行时序，即此时的设备无法运行，从而保护了设备的应用安全。此外，在设备发生拆卸行为后，控制器可以控制其自身及后续电路进入低功耗模式或者断电模式，以节约常规供电电源的电能。1) Under the normal operation of the conventional power supply included in the equipment, the output power is used by the controller and the tamper-
2)在常规供电电源断电的情况下，备电电路2为防拆检测电路1供电，从而保证防拆检测电路1即使在常规供电电源断电后也可以继续检测；而且，备电电路2还为控制器提供其接收设备被拆卸的检测结果时所需的电能，从而保证控制器在常规供电电源断电的情况下，也可以接收到设备被拆卸的消息，以做出拆卸保护措施，防止设备功能信息的泄露，且保护设备的应用安全。2) When the conventional power supply is cut off, the backup power circuit 2 supplies power to the tamper-
本发明提供了一种设备防拆装置，设于设备内部，包括：输出端与设备中控制器连接的防拆检测电路，用于在控制器的常规供电电源供电时实时检测设备是否被拆卸，以便于控制器在接收到设备被拆卸的检测结果后不再执行正常的运行时序；备电电路，用于在常规供电电源断电后，为防拆检测电路供电，以便于防拆检测电路继续实时检测；并为控制器提供其接收设备被拆卸的检测结果时所需的电能。The invention provides an anti-disassembly device for equipment, which is arranged inside the equipment and includes: an anti-disassembly detection circuit whose output end is connected to a controller in the equipment, and is used for real-time detection of whether the equipment is disassembled when the conventional power supply of the controller supplies power, So that the controller will no longer execute the normal operation sequence after receiving the detection result of the device being disassembled; the backup power circuit is used to supply power to the tamper-proof detection circuit after the conventional power supply is cut off, so that the tamper-proof detection circuit can continue to be real-time detection; and provide the controller with the power it needs to receive the detection result of the device being disassembled.
与现有技术中的设备防拆装置相比，本申请的设备防拆装置包括防拆检测电路和备电电路，其中，防拆检测电路可以实时检测设备是否被拆卸；备电电路可以在设备的常规供电电源断电的情况下，为防拆检测电路继续供电，使防拆检测电路可以继续检测，而且，由于备电电路的存在，控制器在常规供电电源断电的情况下也可以接收到设备被拆卸的检测结果，从而不再执行正常的运行时序，以保护设备的应用安全及保密设备的功能信息。可见，本申请的设备防拆装置即使在常规供电电源断电后也可以继续检测，从而提高了设备的功能信息保密性能及应用安全性能。Compared with the equipment tamper-proof device in the prior art, the equipment tamper-proof device of the present application includes a tamper-proof detection circuit and a backup power circuit, wherein the tamper-proof detection circuit can detect whether the equipment is detached in real time; When the conventional power supply is cut off, the tamper detection circuit will continue to supply power, so that the tamper detection circuit can continue to detect. Moreover, due to the existence of the backup power circuit, the controller can also receive power when the conventional power supply is cut off. To the detection result that the device is disassembled, the normal running sequence is no longer executed, so as to protect the application security of the device and keep the functional information of the device secret. It can be seen that the device anti-dismantling device of the present application can continue to detect even after the conventional power supply is cut off, thereby improving the functional information confidentiality performance and application security performance of the device.
在上述实施例的基础上：On the basis of the above-mentioned embodiment:
请参照图2，图2为本发明提供的一种设备防拆装置的实施例二的结构示意图。Please refer to FIG. 2 , which is a schematic structural diagram of Embodiment 2 of a device for preventing dismantling of equipment provided by the present invention.
作为一种优选地实施例，备电电路2包括第一二极管D1、可充电电池BATT、可控开关K及第二二极管D2；其中：As a preferred embodiment, the backup circuit 2 includes a first diode D1, a rechargeable battery BATT, a controllable switch K and a second diode D2; wherein:
第一二极管D1的阳极与常规供电电源的输出端连接，第一二极管D1的阴极分别与可充电电池BATT的正极、防拆检测电路1的供电端及可控开关K的第一端连接，可充电电池BATT的负极接地，可控开关K的第二端与第二二极管D2的阳极连接，第二二极管D2的阴极与控制器的供电端连接；The anode of the first diode D1 is connected to the output terminal of the conventional power supply, and the cathode of the first diode D1 is connected to the anode of the rechargeable battery BATT, the power supply terminal of the tamper-
则防拆检测电路1具体用于当检测到设备被拆卸时，控制可控开关K闭合且输出被拆检测结果至控制器，以便于备电电路2在常规供电电源断电时，为控制器提供此时接收被拆检测结果所需的电能。Then the
具体地，本申请实施例二的备电电路包括第一二极管D1、可充电电池BATT、可控开关K及第二二极管D2，其中，可充电电池BATT的满电电压Vbatt小于常规供电电源的输出电压Vin(由于可充电电池BATT的电能有限，所以此备电电路更适用于常规供电电源短时间断电的情况)。此备电电路的工作原理为：Specifically, the backup circuit of the second embodiment of the present application includes a first diode D1, a rechargeable battery BATT, a controllable switch K, and a second diode D2, wherein the full-charge voltage Vbatt of the rechargeable battery BATT is lower than the conventional The output voltage Vin of the power supply (because the power of the rechargeable battery BATT is limited, this backup circuit is more suitable for the short-term power failure of the conventional power supply). The working principle of this backup circuit is as follows:
在常规供电电源正常工作的情况下，常规供电电源为可充电电池BATT充电，直至充至可充电电池BATT的满电电压Vbatt，此时防拆检测电路1和控制器均处于正常工作状态。当防拆检测电路1检测到设备被拆卸时，一方面控制可控开关K闭合，由于可充电电池BATT的满电电压Vbatt小于控制器的供电电压VCC，所以第二二极管D2截止，不影响控制器的供电；另一方面输出被拆检测结果至控制器，以便于控制器在接收到被拆检测结果后停止且不再执行正常的运行时序。When the conventional power supply works normally, the conventional power supply charges the rechargeable battery BATT until it is charged to the full voltage Vbatt of the rechargeable battery BATT. At this time, the
可充电电池BATT的正极与防拆检测电路1的供电端连接，具体地，在常规供电电源正常工作时，防拆检测电路1利用的是常规供电电源输出的电能；在常规供电电源断电时，防拆检测电路1利用的是可充电电池BATT储存的电能。The positive pole of the rechargeable battery BATT is connected to the power supply end of the tamper-
为了防止在常规供电电源断电时，可充电电池BATT的电能被控制器和其他电子元器件快速消耗掉，导致防拆检测电路1无法继续对设备进行检测，本申请实施例二的备电电路中包含第一二极管D1和可控开关K，其中，第一二极管D1利用其单向导通的特性，当常规供电电源断电时，第一二极管D1截止；而可控开关K在常规供电电源断电且设备未被拆卸的情况下处于断开状态，所以在常规供电电源断电且设备未被拆卸的情况下，可充电电池BATT只为防拆检测电路1供电，以较长时间为防拆检测电路1提供检测所需的电能。这里的第一二极管D1的型号可由可充电电池BATT的电压的应用平台确定，从而便可根据常规供电电源及第一二极管D1的压降估算可充电电池BATT的充电电压。In order to prevent the electric energy of the rechargeable battery BATT from being quickly consumed by the controller and other electronic components when the conventional power supply is cut off, so that the tamper-
由于控制器在常规供电电源断电后处于断电状态，无法接收防拆检测电路1发送的检测结果，所以当防拆检测电路1检测到设备被拆卸时，控制器无法做出拆卸保护措施，考虑到这点，本实施例的防拆检测电路1当检测到设备被拆卸时，控制可控开关K闭合，使可充电电池BATT为控制器提供此时接收被拆检测结果所需的电能，从而使控制器在接收到被拆检测结果后做出拆卸保护措施，此时的控制器处于低功耗模式。Since the controller is in a power-off state after the conventional power supply is cut off, it cannot receive the detection result sent by the tamper-
若常规供电电源仍未通电，但设备外壳被安装至未拆卸前的状态时，防拆检测电路1此时的检测结果为设备未被拆卸，防拆检测电路1便控制可控开关K断开，则控制器退出低功耗模式，执行断电操作。当常规供电电源再次通电时，由于控制器历史存储有设备被拆卸的相关信息，控制器不执行正常的运行时序。If the conventional power supply is still not energized, but the equipment shell is installed to the state before disassembly, the detection result of the
作为一种优选地实施例，备电电路2还包括限流电阻R和滤波电容C；其中：As a preferred embodiment, the backup circuit 2 further includes a current limiting resistor R and a filter capacitor C; wherein:
限流电阻R的第一端与常规供电电源的输出端连接，限流电阻R的第二端与第一二极管D1的阳极连接，滤波电容C的第一端与第二二极管D2的阴极连接，滤波电容C的第二端接地。The first end of the current limiting resistor R is connected to the output end of the conventional power supply, the second end of the current limiting resistor R is connected to the anode of the first diode D1, and the first end of the filter capacitor C is connected to the second diode D2 The cathode is connected, and the second end of the filter capacitor C is grounded.
进一步地，本申请实施例二的备电电路还包括滤波电容C和限流电阻R，其中，滤波电容C用于滤除控制器供电信号中的干扰信号，以提高供电信号的质量。限流电阻R用于限制流入可充电电池BATT的电流大小，以防止电流过大烧坏可充电电池BATT。限流电阻R的取值可根据可充电电池BATT的容量和最大充电电流确定。此外，常规供电电源与可充电电池BATT之间的充电连接，也可以选用集成的功率变换电路，代替限流电阻R及第一二极管D1组成的简单电路，本申请在此不做特别的限定。Further, the backup power circuit of the second embodiment of the present application further includes a filter capacitor C and a current limiting resistor R, wherein the filter capacitor C is used to filter out interference signals in the power supply signal of the controller, so as to improve the quality of the power supply signal. The current limiting resistor R is used to limit the magnitude of the current flowing into the rechargeable battery BATT, so as to prevent the rechargeable battery BATT from being burned out due to excessive current. The value of the current limiting resistor R can be determined according to the capacity of the rechargeable battery BATT and the maximum charging current. In addition, for the charging connection between the conventional power supply and the rechargeable battery BATT, an integrated power conversion circuit can also be selected to replace the simple circuit composed of the current limiting resistor R and the first diode D1. limited.
请参照图3，图3为本发明提供的一种如图2所示防拆检测电路的结构示意图。Please refer to FIG. 3 , which is a schematic structural diagram of a tamper-proof detection circuit shown in FIG. 2 provided by the present invention.
作为一种优选地实施例，可控开关K具体为固态继电器，则可控开关K的第一端及第二端一一作为固态继电器的两个输出受控端；防拆检测电路1包括固定于设备外壳侧的金属贴片、电感开关电路、第一限流电阻R1、开关管Q、第一光电耦合器N1、第二光电耦合器N2、放电二极管D及第二限流电阻R2；As a preferred embodiment, the controllable switch K is specifically a solid state relay, and the first end and the second end of the controllable switch K serve as two output controlled ends of the solid state relay; the tamper-
第一光电耦合器N1包括第一发光二极管和第一光敏三极管，第二光电耦合器N2包括第二发光二极管和第二光敏三极管，防拆检测电路1的供电端包括第一供电端、第二供电端、第三供电端及第四供电端；其中：The first photocoupler N1 includes a first light-emitting diode and a first phototransistor, the second photocoupler N2 includes a second light-emitting diode and a second phototransistor, and the power supply terminal of the tamper-
电感开关电路的供电端作为其第一供电端，电感开关电路的输出端与开关管Q的控制端连接，开关管Q的第一端与第一限流电阻R1的第一端连接，第一限流电阻R1的第二端作为其第二供电端，开关管Q的第二端与第一发光二极管的阳极连接，第一发光二极管的阴极与第二发光二极管的阳极连接，第二发光二极管的阴极接地，第一光敏三极管的集电极分别与固态继电器的第一输入控制端及放电二极管D的阳极连接，固态继电器的第二输入控制端与放电二极管D的阴极连接，其公共端作为其第三供电端，第一光敏三极管的发射极接地，第二光敏三极管的集电极与第二限流电阻R2的第一端连接，其公共端作为其输出端，第二限流电阻R2的第二端作为其第四供电端，第二光敏三极管的发射极接地；The power supply end of the inductance switch circuit is used as its first power supply end, the output end of the inductance switch circuit is connected to the control end of the switch Q, the first end of the switch Q is connected to the first end of the first current limiting resistor R1, the first The second end of the current limiting resistor R1 is used as its second power supply end, the second end of the switch Q is connected to the anode of the first light-emitting diode, the cathode of the first light-emitting diode is connected to the anode of the second light-emitting diode, and the second light-emitting diode is connected. The cathode of the first phototransistor is grounded, the collector of the first phototransistor is connected to the first input control terminal of the solid state relay and the anode of the discharge diode D respectively, the second input control terminal of the solid state relay is connected to the cathode of the discharge diode D, and its common terminal is used as its The third power supply terminal, the emitter of the first phototransistor is grounded, the collector of the second phototransistor is connected to the first end of the second current limiting resistor R2, the common terminal is used as its output terminal, the second current limiting resistor R2 The two terminals are used as its fourth power supply terminal, and the emitter of the second phototransistor is grounded;
电感开关电路用于感测自身与金属贴片的距离，当二者之间的距离大于预设感测距离时，控制开关管Q闭合。The inductive switch circuit is used to sense the distance between itself and the metal patch, and when the distance between the two is greater than the preset sensing distance, the switch tube Q is controlled to be closed.
具体地，考虑到现有的电检测回路防拆装置大都为接触式检测装置，比如包含检测开关的电检测回路防拆装置，当设备安装好时，其外壳按下检测开关，检测开关处于闭合状态，当设备被拆卸时，其外壳脱离设备本体，则检测开关被断开，从而电检测回路防拆装置根据检测开关的开关状态判定设备是否被拆卸，但是，检测开关长时间摩擦会老化，且检测开关的开关次数较多时会降低自身寿命，且检测开关的环境抗扰性低，所以，本申请实施例二的防拆检测电路依据非接触式检测原理，设计有金属贴片、电感开关电路、第一限流电阻R1、开关管Q、第一光电耦合器N1、第二光电耦合器N2、放电二极管D及第二限流电阻R2，其工作原理为：Specifically, considering that most of the existing electrical detection circuit tamper-proof devices are contact-type detection devices, such as an electrical detection circuit tamper-proof device including a detection switch, when the device is installed, the detection switch is pressed by the housing, and the detection switch is closed. When the device is disassembled, its shell is separated from the device body, and the detection switch is disconnected, so that the anti-disassembly device of the electric detection circuit determines whether the device is disassembled according to the switch state of the detection switch. However, the detection switch will age due to long-term friction. In addition, when the number of times of the detection switch is switched on and off, its own life will be reduced, and the environmental immunity of the detection switch will be low. Therefore, the tamper-proof detection circuit of the second embodiment of the present application is designed with a metal patch and an inductance switch according to the non-contact detection principle. The circuit, the first current limiting resistor R1, the switch tube Q, the first photocoupler N1, the second photocoupler N2, the discharge diode D and the second current limiting resistor R2, the working principle is:
本申请将金属贴片固定于设备外壳侧，电感开关电路利用自身与金属贴片的磁感应感测出自身与金属贴片的距离，并将二者之间的距离与所设感测距离(电感开关电路位于设备内部且其包含的感测器件正对于金属贴片，所设感测距离大体等于在设备安装好时感测器件与金属贴片的距离)进行比较，当二者之间的距离大于所设感测距离时，说明设备外壳远离设备本体，即设备被拆卸，电感开关电路便控制开关管Q闭合，从而第一光电耦合器N1和第二光电耦合器N2均导通。第二光敏三极管的集电极YX1在未导通前的电压为Vbatt，为高电平(设备未被拆卸)；在导通后电压被拉低，为低电平(设备被拆卸)；所以控制器根据第二光敏三极管的集电极YX1的电平高低状态，判定设备是否被拆卸。In this application, the metal patch is fixed on the side of the device casing, and the inductance switch circuit uses the magnetic induction between itself and the metal patch to sense the distance between itself and the metal patch, and compares the distance between the two with the set sensing distance (inductance). The switch circuit is located inside the device and the sensing device it contains is facing the metal patch, and the set sensing distance is roughly equal to the distance between the sensing device and the metal patch when the device is installed) for comparison, when the distance between the two When the sensing distance is greater than the set sensing distance, it means that the device casing is far away from the device body, that is, the device is disassembled, and the inductive switch circuit controls the switch Q to close, so that both the first photocoupler N1 and the second photocoupler N2 are turned on. The voltage of the collector YX1 of the second phototransistor before it is not turned on is Vbatt, which is a high level (the device is not disassembled); the voltage is pulled down after it is turned on, and it is a low level (the device is disassembled); so control The device determines whether the device is disassembled according to the level state of the collector YX1 of the second phototransistor.
已知可控开关K为固态继电器，当第一光电耦合器N1导通时，即第一光敏三极管导通时，固态继电器会闭合，从而使备电电路2在常规供电电源断电后，为控制器提供其接收被拆检测结果时所需的电能。It is known that the controllable switch K is a solid-state relay. When the first photocoupler N1 is turned on, that is, when the first phototransistor is turned on, the solid-state relay will be closed, so that the backup circuit 2 is turned off after the conventional power supply is cut off. The controller supplies the power it needs to receive the dismantled detection results.
由于与第一光敏三极管连接的部分固态继电器内部包含线圈，线圈实际是一个电感，当固态继电器释放时，线圈由于突然断电会产生方向相反且较高的感生电压，此电压容易损坏固态继电器，所以在这部分固态继电器上反并联一个放电二极管D，起到泄放线圈电流的作用，从而保护了固态继电器。Since part of the solid-state relay connected to the first phototransistor contains a coil inside, the coil is actually an inductance. When the solid-state relay is released, the coil will generate a reversed and higher induced voltage due to sudden power failure, which is easy to damage the solid-state relay. , so a discharge diode D is connected in anti-parallel to this part of the solid-state relay, which plays the role of discharging the coil current, thereby protecting the solid-state relay.
此外，本申请也可以直接选用固定外壳用的金属螺丝作为金属贴片，无需另设金属贴片。In addition, in the present application, metal screws for fixing the casing can also be directly selected as the metal patch, and there is no need to provide another metal patch.
请参照图4，图4为本发明提供的一种如图3所示防拆检测电路的具体结构示意图。Please refer to FIG. 4 , which is a schematic structural diagram of a tamper-proof detection circuit shown in FIG. 3 provided by the present invention.
进一步地，电感开关电路的工作原理为：设感应线圈L1(上述的感测器件)与设备外壳侧的金属贴片之间的距离为D，金属贴片的存在，会影响差分感应开关测得的感应线圈L1的电感值(距离越近，测得的感应线圈L1的电感值越小；距离越远，测得的感应线圈L1的电感值越大)，差分感应开关将测得感应线圈L1的电感值与其测得的参考线圈L2的电感值作比较，当感应线圈L1的电感值大于参考线圈L2的电感值时，OUT管脚输出高电平，开关管Q导通；当感应线圈L1的电感值不大于参考线圈L2的电感值时，OUT管脚输出低电平，开关管Q截止。Further, the working principle of the inductive switch circuit is: set the distance between the inductive coil L1 (the above-mentioned sensing device) and the metal patch on the side of the device shell as D, the existence of the metal patch will affect the differential inductive switch. The inductance value of the induction coil L1 (the closer the distance, the smaller the measured inductance value of the induction coil L1; the farther the distance, the larger the measured inductance value of the induction coil L1), the differential induction switch will measure the induction coil L1 When the inductance value of the inductance coil L1 is greater than the inductance value of the reference coil L2, the OUT pin outputs a high level and the switch Q is turned on; when the inductance value of the induction coil L1 is greater than the inductance value of the reference coil L2 When the inductance value is not greater than the inductance value of the reference coil L2, the OUT pin outputs a low level, and the switch Q is turned off.
本申请通过调整可调电阻RP的大小，可以间接调整差分感应开关比较环节的参考线圈L2的电感值的大小(这里并非改变参考线圈L2的电感值，只是改变比较值)，所以本申请提前调整好可调电阻RP的大小，以满足差分感应开关在设备未被拆解时OUT管脚输出低电平、设备被拆解后OUT管脚输出高电平。In this application, by adjusting the size of the adjustable resistance RP, the inductance value of the reference coil L2 in the comparison link of the differential inductive switch can be indirectly adjusted (here, the inductance value of the reference coil L2 is not changed, but the comparison value is changed), so this application adjusts in advance. The size of the adjustable resistor RP is good, so that the OUT pin of the differential sensing switch outputs a low level when the device is not disassembled, and the OUT pin outputs a high level after the device is disassembled.
可见，在可调电阻RP的调整下，也可对感测距离D进行调节，只要满足差分感应开关在设备未被拆解时OUT管脚输出低电平、设备被拆解后OUT管脚输出高电平即可，从而适应不同场合对感测距离的不同要求。It can be seen that under the adjustment of the adjustable resistance RP, the sensing distance D can also be adjusted, as long as the differential sensing switch satisfies the requirement that the OUT pin outputs a low level when the device is not disassembled, and the OUT pin outputs after the device is disassembled. A high level is sufficient, thus adapting to different requirements for sensing distance in different occasions.
请参照图5，图5为本发明提供的一种设备防拆装置的实施例三的结构示意图。Please refer to FIG. 5 , which is a schematic structural diagram of Embodiment 3 of a device for preventing dismantling of equipment provided by the present invention.
作为一种优选地实施例，备电电路2包括环境能源装置21、与环境能源装置21匹配的能量采集器22和充电电池batt；其中：As a preferred embodiment, the backup power circuit 2 includes an
能量采集器22的第一输入端与常规供电电源的输出端连接、第二输入端与环境能源装置21连接、输出端分别与防拆检测电路1的供电端及控制器的供电端连接、充电端与充电电池batt的正极连接，充电电池batt的负极接地；The first input end of the
能量采集器22用于将环境能源装置21收集的能量转化为电能存储起来，以在常规供电电源断电后自动维持防拆检测电路1和控制器的供电需求。The
具体地，本申请实施例三的备电电路包括环境能源装置21、能量采集器22和充电电池batt(由于外界能源不受限，所以此备电电路更适用于常规供电电源长时间断电的情况)。其中，环境能源装置21用来收集外界环境的能量，而能量采集器22将环境能源装置21收集的能量转化为电能存储起来，且能量采集器22在电能存储充足后，为充电电池batt充电，以保证外界能源缺失时充电电池batt的电能充足，从而实现为后续电路继续供电。此外，本申请应合理设计负载功耗和充电电池batt的充电电流，以确保在外界能源和充电电池batt交替供电的情况下，设备可较长时间工作。Specifically, the backup power circuit in the third embodiment of the present application includes an
能量采集器22有两个输入通道，一个通道输入常规供电电源的电能，另一个通道输入环境能源装置21收集的能量。在常规供电电源正常工作时，能量采集器22输出常规供电电源的电能；在常规供电电源断电后，能量采集器22立即输出自身存储的电能，从而保证防拆检测电路和控制器均持续断电。基于此，控制器及其后续电路可选用低功耗器件，以节约电能。The
作为一种优选地实施例，环境能源装置21具体为光伏电池或磁性源收集装置。As a preferred embodiment, the
进一步地，本申请的环境能源装置21可以选用但不仅限于光伏电池或磁性源收集装置，本申请在此不做特别的限定，根据外界实际环境而定。Further, the
作为一种优选地实施例，防拆检测电路1包括固定于设备外壳侧的金属贴片及电感开关电路；其中：As a preferred embodiment, the tamper-
电感开关电路的输出端作为防拆检测电路1的输出端，用于感测自身与金属贴片的距离，当二者之间的距离大于预设感测距离时，确定设备被拆卸，并将设备被拆卸的检测结果发送至控制器。The output end of the inductive switch circuit is used as the output end of the tamper-
具体地，本申请实施例三的防拆检测电路包括金属贴片及电感开关电路，这里的电感开关电路采用如图4所示的电感开关电路，实现非接触式检测，本申请对此不再赘述。所以当设备未被拆卸时，差分感应开关的OUT管脚输出低电平；当设备被拆卸后，差分感应开关的OUT管脚输出高电平，则在本实施例中，控制器根据差分感应开关的OUT管脚的电平高低状态(检测结果)，判定设备是否被拆卸，从而决定是否做出拆卸保护措施。此外，差分感应开关的EN使能管脚可与CPU连接，CPU便可直接通过EN使能管脚控制差分感应开关的工作采样频率，从而降低其功耗。Specifically, the tamper-evident detection circuit in the third embodiment of the present application includes a metal patch and an inductive switch circuit. The inductive switch circuit here adopts the inductive switch circuit shown in FIG. 4 to realize non-contact detection, which is no longer required in this application. Repeat. Therefore, when the device is not disassembled, the OUT pin of the differential sensing switch outputs a low level; when the device is disassembled, the OUT pin of the differential sensing switch outputs a high level, then in this embodiment, the controller according to the differential sensing The level status (detection result) of the OUT pin of the switch determines whether the device has been disassembled, so as to decide whether to take disassembly protection measures. In addition, the EN enable pin of the differential sensing switch can be connected to the CPU, and the CPU can directly control the working sampling frequency of the differential sensing switch through the EN enable pin, thereby reducing its power consumption.
此外，本申请实施例三的防拆检测电路也可以参考实施例二的防拆检测电路，在差分感应开关的OUT管脚(即电感开关电路的输出端)加入开关管及光电耦合器，控制器根据光电耦合器中光敏三极管的集电极的电平高低状态，判定设备是否被拆卸。至于具体选用哪种防拆检测电路，本申请在此不做特别的限定，根据实际共地要求而定。In addition, the tamper detection circuit of the third embodiment of the present application can also refer to the tamper detection circuit of the second embodiment, and a switch tube and a photocoupler are added to the OUT pin of the differential inductive switch (ie, the output end of the inductive switch circuit) to control The device determines whether the device is disassembled according to the level of the collector of the phototransistor in the optocoupler. As for which tamper-proof detection circuit is specifically selected, this application does not make a special limitation here, and it is determined according to the actual common ground requirements.
本发明还提供了一种具有防拆功能的设备，包括控制器，还包括上述任一种设备防拆装置。The present invention also provides a device with an anti-disassembly function, including a controller, and any of the above-mentioned equipment anti-disassembly devices.
本实施例提供的设备的介绍请参考上述设备防拆装置实施例，本申请在此不再赘述。For the introduction of the equipment provided in this embodiment, please refer to the above-mentioned embodiment of the device for preventing dismantling of the equipment, which will not be repeated in this application.
请参照图6，图6为本发明提供的一种具有防拆功能的设备的结构示意图。该设备在上述实施例的基础上：Please refer to FIG. 6 , which is a schematic structural diagram of a device with a tamper-proof function provided by the present invention. The device is based on the above embodiment:
作为一种优选地实施例，控制器包括CPU、存储电路A1及具有单独供电电源的时钟电路A2；As a preferred embodiment, the controller includes a CPU, a storage circuit A1 and a clock circuit A2 with a separate power supply;
CPU分别与时钟电路A2和存储电路A1连接，具体用于在接收到设备被拆卸的检测结果后，读取时钟电路A2此时的时间标记，并将时间标记、被拆动作标记及设备编号存储至存储电路A1，以在存储电路A1保存设备拆卸信息的条件下不再执行正常的运行时序。The CPU is connected to the clock circuit A2 and the storage circuit A1 respectively, and is specifically used to read the time stamp of the clock circuit A2 at this time after receiving the detection result that the device is disassembled, and store the time stamp, the dismantled action mark and the device number. to the storage circuit A1, so that the normal operation sequence is no longer performed under the condition that the storage circuit A1 holds the device disassembly information.
具体地，本申请的控制器包括CPU、存储电路A1及时钟电路A2，已知只要控制器存储有设备被拆卸的相关信息，控制器便不执行正常的运行时序，基于此，控制器的具体工作原理为：Specifically, the controller of the present application includes a CPU, a storage circuit A1 and a clock circuit A2. It is known that as long as the controller stores information about the disassembly of the device, the controller will not execute the normal operation sequence. Based on this, the specific The working principle is:
CPU在正常通电工作时，实时读取防拆检测电路1输出的检测结果，当读取到设备被拆卸的检测结果时，读取此时时钟电路A2的时间标记(代表设备被拆的时间)，并将带有时间标记的设备拆卸信息存储至存储电路A1，以在存储电路A1保存设备拆卸信息的条件下不再执行正常的运行时序。这里的设备拆卸信息包括时间标记、被拆动作标记及设备编号。这里的存储电路A1选用能够实现掉电保存的介质，如CPU外扩的EEPROM或外扩的FRAM或CPU自带的Flash均可。When the CPU is normally powered on, it reads the detection result output by the
在CPU的常规供电电源断电后，当防拆检测电路1检测到设备被拆卸时，由备电电路2为CPU提供一系列读取、存储所需的电能。此外，考虑到设备的正常供电电路断电后，时钟电路A2也处于断电状态，无法实时更新时钟信息，在此情况下，CPU上电后读取的时钟电路A2的时间标记不准确，所以本申请中的时钟电路A2单独供电，以防止在设备的正常供电电路断电后无法实时更新时钟信息。具体地，时钟电路A2的单独供电电源可以为备电电路2中的备电电源，从而使防拆检测电路1的检测与时钟电路A2的计时保持相同的供电状态。After the conventional power supply of the CPU is powered off, when the
作为一种优选地实施例，该设备还包括与CPU连接的通信电路B；As a preferred embodiment, the device further includes a communication circuit B connected to the CPU;
CPU还用于利用通信电路B将设备拆卸信息上传至上位机，以便于设备生产厂商通过上位机及CPU擦除存储电路A1保存的设备拆卸信息，以恢复设备的正常运行。The CPU is also used to upload the device disassembly information to the host computer by using the communication circuit B, so that the equipment manufacturer can erase the device disassembly information saved by the storage circuit A1 through the host computer and the CPU to restore the normal operation of the device.
进一步地，本申请提供的设备还包括与CPU连接的通信电路B，CPU利用通信电路B可将设备拆卸信息上传至上位机。这里的通信电路B可通过有线传输形式(如网口、串口、CAN通信口等)，将设备拆卸信息上传至上位机；也可通过无线传输形式(如GPRS、wifi等)，将设备拆卸信息上传至上位机。设备生产厂商便可以通过上位机查看设备拆卸信息，以获取拆卸设备的时间及设备编号。然后，设备生产厂商可根据设备编号和出厂记录确定设备的应用厂商。Further, the device provided by the present application further includes a communication circuit B connected to the CPU, and the CPU can upload the device disassembly information to the upper computer by using the communication circuit B. The communication circuit B here can upload the device disassembly information to the upper computer through wired transmission (such as network port, serial port, CAN communication port, etc.); it can also transmit the device disassembly information through wireless transmission (such as GPRS, wifi, etc.). Upload to the host computer. The equipment manufacturer can view the equipment disassembly information through the host computer to obtain the time and equipment number of the disassembled equipment. Then, the equipment manufacturer can determine the application manufacturer of the equipment according to the equipment number and factory records.
已知只要发生过或发生了拆卸动作，均停止设备的正常动作时序，即停止设备正常工作的既定功能，从而保证设备的应用安全。为了恢复设备的正常运行，设备生产厂商针对设备功能信息的保密性，通过上位机及控制器做出程序擦除的应对动作，擦除存储电路A1保存的设备拆卸信息；或者，设备生产厂商派专人到达设备所在地，通过设备本地界面的特殊权限，擦除存储电路A1保存的设备拆卸信息，以恢复设备的正常运行。It is known that as long as a disassembly action occurs, the normal action sequence of the device is stopped, that is, the predetermined function of the normal operation of the device is stopped, thereby ensuring the application security of the device. In order to restore the normal operation of the equipment, the equipment manufacturer, in view of the confidentiality of the equipment function information, makes the corresponding action of program erasing through the host computer and the controller, and erases the equipment disassembly information saved in the storage circuit A1; or, the equipment manufacturer sends A special person arrives at the location of the device, and through the special authority of the local interface of the device, erases the device disassembly information saved by the storage circuit A1 to restore the normal operation of the device.
此外，为了便于后续查证已发生的拆卸行为，本申请提前将存储电路A1划分为实时信息区和历史信息区，为实时信息区分配单次的存储区域；根据存储电路A1的内存大小为历史信息区分配多次的存储区域，并采取循环覆盖的方式且通过最新存储的地址指针判定最新的存储信息位置。In addition, in order to facilitate the subsequent verification of the disassembly that has occurred, the application divides the storage circuit A1 into a real-time information area and a historical information area in advance, and allocates a single storage area for the real-time information area; according to the memory size of the storage circuit A1, the historical information The storage area is allocated multiple times, and the method of cyclic coverage is adopted, and the latest storage information location is determined by the latest stored address pointer.
存储电路A1在接收到上位机或本地界面发送的擦除指令后，仅擦除实时信息区，而保留历史信息区的信息，以便后续通过上位机或本地界面读取历史信息区的信息，查证已发生的拆卸行为。可以理解的是，上述所提及的：只要控制器存储有设备被拆卸的相关信息，控制器便不执行正常的运行时序，这里仅指的是实时信息区存储有设备被拆卸的相关信息，CPU才不执行正常的运行时序，而与历史信息区的存储信息无关。After receiving the erasing command sent by the host computer or the local interface, the storage circuit A1 only erases the real-time information area, but retains the information in the historical information area, so that the information in the historical information area can be read later through the host computer or the local interface to verify The teardown that has occurred. It can be understood that the above mentioned: as long as the controller stores the relevant information of the disassembly of the equipment, the controller will not execute the normal operation sequence, here only refers to the real-time information area that stores the relevant information of the disassembly of the equipment, The CPU does not execute the normal running sequence, and has nothing to do with the storage information in the historical information area.
还需要说明的是，在本说明书中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities or operations. There is no such actual relationship or sequence between operations. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其他实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。The above description of the disclosed embodiments enables any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
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