Anti-theft method of printing control equipment

Abstract

The invention discloses an anti-theft method for a seal control device, belongs to the technical field of safety protection of intelligent seals, solves the problem that in the prior art, the forcible disassembly alarm detection precision of an electric seal control device unlocked by a physical key is poor, and mainly adopts the technical scheme that the anti-theft method for the seal control device is provided. The first detection assembly transmits a first signal to the main control module when detecting that the cover body is separated from the shell; the first detection assembly transmits a second signal to the main control module when detecting that the cover body is connected with the shell; the second detection assembly transmits a third signal to the main control module when detecting that the mechanical lock is locked; the second detection assembly transmits a fourth signal to the main control module when detecting that the mechanical lock is unlocked; the anti-theft method of the printing control equipment comprises the step of controlling the alarm module to give an alarm when the main control module receives the first signal and the third signal. The method is mainly used for realizing accurate judgment of normal disassembly and forced disassembly of the electric printing control equipment unlocked by a physical key.

Description

Technical Field

[0001] This application relates to the technical field of security protection for intelligent seals, and in particular to an anti-theft method for seal control devices. Background Art

[0002] In the field of intelligent seals, existing technologies mainly rely on electronic locking mechanisms, which usually include fingerprint recognition, password protection, remote APP authorization, etc. The core components of these intelligent seals include an electronic lock, a control circuit, a communication module, a battery, and a user interface. The electronic lock receives operation instructions from the user through the control circuit, and the communication module is responsible for data exchange with external devices (such as smartphones).

[0003] The main problems of existing intelligent seal technologies are that they lack effective backup unlocking solutions in the face of emergencies or electronic system failures. This may lead to inability to access the seal during critical periods, thus affecting business processes. Lack of physical security redundancy: Intelligent seals lack physical security redundancy measures, such as physical key unlocking, which makes it impossible to guarantee the availability of the seal when the electronic system fails. Insufficient emergency response ability: In emergencies, such as when it is necessary to quickly use the seal to stamp important documents, existing technologies cannot provide a quick emergency response.

[0004] Current electric seal control devices with physical key unlocking have many shortcomings in dealing with forced demolition alarms. On the one hand, there is a lack of an accurate detection mechanism, making it difficult to distinguish normal disassembly from forced demolition, and signal transmission and processing often have problems, easily resulting in untimely or false alarms; on the other hand, the security protection design is poor, the outer shell is easily damaged, and key components lack protection. Summary of the Invention

[0005] In order to overcome the deficiency of poor detection accuracy of forced demolition alarms in electric seal control devices with physical key unlocking in the prior art, this application provides an anti-theft method for seal control devices, which can realize the function of accurately judging normal disassembly and forced demolition of electric seal control devices with physical key unlocking.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: an anti-theft method for a printing control device, the printing control device comprises a shell with an opening and a cover body for covering the shell opening, a mechanical lock for unlocking or locking the cover body and the shell is arranged between the shell and the cover body, a main power supply, a main control module and an alarm module connected in sequence are arranged in the shell, the main control switch is connected with a first detection component for detecting whether the cover body is separated from the shell and a second detection component for detecting whether the mechanical lock is locked, the first detection component transmits a first signal to the main control module when detecting that the cover body is separated from the shell; the first detection component transmits a second signal to the main control module when detecting that the cover body is connected to the shell; the second detection component transmits a third signal to the main control module when detecting that the mechanical lock is locked; the second detection component transmits a fourth signal to the main control module when detecting that the mechanical lock is unlocked; The anti-theft method of the printing control device is: when the main control module receives the first signal and the third signal, the alarm module is controlled to generate an alarm.

[0007] After adopting the above technical solution, the present application has the following advantages: by setting a first detection component that abuts against the cover body, it is possible to transmit a corresponding first signal or a second signal to the main control module when the cover body and the shell are connected or separated; at the same time, the second detection component that determines whether the mechanical lock is locked transmits a corresponding third signal or a fourth signal when the mechanical lock is unlocked or locked, so that the main control module can accurately determine whether it is normal disassembly or forced disassembly (when the cover body and the shell are separated in the locked state of the mechanical lock, it is regarded as forced disassembly), which solves the problem of difficulty in distinguishing between normal disassembly and forced disassembly in the prior art and improves the accuracy of forced disassembly alarm detection. The existence of the mechanical lock enables the seal to be quickly opened by physical means in an emergency (such as when the electronic system fails). Compared with the prior art, which cannot quickly use the seal in an emergency, the emergency response capability is improved, and it is ensured that the business process will not be affected by the inability to access the seal during a critical period. The forced demolition situation is judged by the main control module processing the signals of the first detection component and the second detection component. Compared with the existing technology where problems in signal transmission and processing often lead to untimely alarms or false alarms, the security protection mechanism of this solution is more reliable and can issue alarms in a timely and accurate manner. The setting of components such as mechanical locks also enhances the overall security protection capabilities of the printing control equipment to a certain extent.

[0008] Furthermore, the mechanical lock includes a lock catch located at the shell opening, and a lock tongue adapted to the lock catch is provided on the side of the cover body facing the shell, the lock tongue has a lock hole extending to the cover body away from the shell surface, and the lock tongue has a first position locked with the lock catch and a second position separated from the lock catch.

[0009] Adopting the foregoing technical solution, locking and separation are achieved by the switching of the lock tongue between the first position and the second position, and the operation is simple and direct. The user only needs to insert the lock tongue into the lock catch to complete the locking, and insert a tool such as a key into the keyhole to operate the lock tongue to separate it from the lock catch to unlock, which is convenient for the user to quickly open or close the printing control device when needed.

[0010] Further, the second detection component is provided with a detection circuit, and the detection circuit is electrically connected to the lock catch and the lock tongue. When the lock tongue is in the first position, the lock tongue is electrically connected to the lock catch, enabling the second detection component to transmit a third signal to the main control module. When the lock tongue is in the second position, the lock tongue is disconnected from the lock catch, enabling the second detection component to transmit a fourth signal to the main control module.

[0011] Adopting the foregoing technical solution, when the lock tongue is in the first position (locked), the lock tongue is electrically connected to the lock catch, and the second detection component transmits a third signal to the main control module; when in the second position (unlocked), the two are disconnected, and the second detection component transmits a fourth signal to the main control module. Based on this clear signal, the main control module can accurately judge whether the printing control device is currently in normal disassembly (separation in the unlocked state) or forced disassembly (separation in the locked state), avoiding the problem in the prior art that it is difficult to distinguish between these two situations, and greatly improving the accuracy of forced disassembly alarm detection. By judging through the on and off states of the electrical connection, the logic is clear and it is not easily interfered by external factors. Compared with the situation where signal transmission and processing often have problems in the prior art, this electrical connection detection method is more stable and reliable, and can effectively reduce the situation of untimely alarms or false alarms.

[0012] Further, a plurality of fixing members for relatively fixing the cover body and the housing are further provided between the cover body and the housing, and the fixing members extend to the side of the cover body facing away from the housing.

[0013] Adopting the foregoing technical solution, the additional fixing members increase the fixation of the cover body, making it more difficult for the printing control device to be illegally opened. Even if the mechanical lock or other unlocking methods are damaged, the fixing members can, to a certain extent, prevent the cover body from being easily opened, thereby protecting the internal seal from being illegally obtained and used, and enhancing the security protection ability of the printing control device.

[0014] Further, the mechanical lock includes a keyhole provided on the surface of the cover body facing away from the housing, and a shielding member for shielding the fixing members and the keyhole is provided on the side of the cover body facing away from the housing.

[0015] Adopting the foregoing technical solution, the shielding member can provide physical protection for the keyhole and the fixing member, preventing dust, dirt, liquid, etc. from entering the keyhole or adhering to the fixing member, and avoiding component damage or functional failure caused by these impurities. For example, dust entering the keyhole may affect the normal opening of a mechanical lock, while the shielding member can effectively block the dust. And the shielding member can provide physical protection for the keyhole and the fixing member, preventing dust, dirt, liquid, etc. from entering the keyhole or adhering to the fixing member, and avoiding component damage or functional failure caused by these impurities. For example, dust entering the keyhole may affect the normal opening of a mechanical lock, while the shielding member can effectively block the dust.

[0016] Furthermore, the shielding member is an anti-slip footpad.

[0017] Adopting the foregoing technical solution, most current seals are equipped with anti-slip pads at the bottom, and the seal control device uses an anti-slip footpad as the shielding member, which conforms to the public's inherent perception of the anti-slip pad of the seal. Illegal elements are likely to regard it as a conventional anti-slip design and ignore the fixing member and keyhole hidden below, effectively taking advantage of people's thinking inertia to conceal key parts, increasing the difficulty of illegal opening, and ensuring the safety of the internal seal.

[0018] Furthermore, the main power supply includes a state switch, a main power source, and a backup power source. The main power source and the backup power source are switched by the state switch to supply power, so that after the main power source is damaged or exhausted, the state switch switches to the backup power source for power supply.

[0019] Adopting the foregoing technical solution, during the operation of the seal control device, if the main power source suddenly fails, such as being unable to supply power normally due to a circuit short circuit, component failure, etc., or as the usage time increases and the main power source runs out of power, the state switch design can quickly switch the power supply to the backup power source at this time. This mechanism can ensure that the seal control device is always powered on, continuously maintaining support for the key functions of the seal control device, such as the status monitoring of the mechanical lock, the normal transmission of signals between the first detection component and the second detection component, and the stable operation of the main control module, etc., avoiding the paralysis of the device function caused by power failure, and ensuring the continuity of seal use and the uninterrupted operation of the device safety protection system.

[0020] Furthermore, the seal control device further includes a hatch door disposed between the housing and the cover body. The hatch door is used to shield the seal inside the housing. An electronic switch for controlling the opening and closing of the hatch door is provided on the outside of the seal control device. The electronic switch is electrically connected to the main power source, and the main control module is electrically connected to the main power source and the backup power source respectively, so that the electronic switch is in a power-off state after the main power source is powered off, while the main control module is always powered on.

[0021] By adopting the above-mentioned technical solution, the main control module is electrically connected to the main power supply and the backup power supply respectively. Even if the main power supply is powered off, the backup power supply can immediately supply power to it, ensuring that the main control module is always powered on. As the core of the printing control equipment, the main control module can maintain control and monitoring of key functions of the printing control equipment by continuously supplying power, such as receiving signals transmitted by the first detection component and the second detection component in real time, judging the status of the printing control equipment, and responding to abnormal situations such as forced demolition in a timely manner, so as to ensure the uninterrupted operation of the equipment safety protection system. The backup power supply does not supply power to components such as electronic switches, which can extend the use time of the backup power supply, so that the backup power supply can supply power to the main control module for a long time to cope with the situation where the main power supply is powered off under special circumstances.

[0022] Furthermore, the main power supply and the backup power supply are isolated by an optical coupler. When the main control module receives the first signal and the third signal, the synchronous control state switcher switches to the backup power supply and uses the optical coupler to isolate the main power supply.

[0023] With the above-mentioned technical solution, when the printing control equipment issues an alarm, it often means that the equipment is facing abnormal conditions such as forced demolition. At this time, the equipment needs to be able to operate continuously and stably in order to handle and feedback abnormal information in a timely manner. Under the control of the main control module, the state switch quickly switches the power supply to the backup power supply, and when the main power is cut off, the electronic switch is also in a power-off state. This directly related design can accurately control the on and off of the main power supply-related circuits, ensuring that the equipment cuts off other unlocking paths without damaging the cover body, avoiding intrusion of the equipment by criminals, and in an emergency, ensuring that the relevant circuits stop working quickly after the main power is cut off, thereby improving equipment safety and preventing criminals from opening the printing control equipment through electronic switches and other means.

[0024] Furthermore, the first detection component includes a cover opening travel switch arranged on the shell and abutting against the cover body, and a current sensor electrically connected to the cover opening travel switch. The current sensor transmits a first signal to the main control module after detecting that the cover body is separated from the shell through the cover opening travel switch.

[0025] By adopting the above technical solution, the current sensor can monitor the current changes in the detection circuit in real time and accurately. When the cover is forcibly removed, the cover opening travel switch will be subjected to abnormal external force, causing the resistance and other parameters of the detection circuit to change, thereby causing the current to change. The current sensor can keenly capture such subtle current fluctuations. Compared with traditional detection methods, it can detect forced removal earlier and more accurately, and can transmit the first signal to the main control module more promptly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present application is further described below in conjunction with the accompanying drawings: Figure 1Schematic diagram of an anti-theft method for an imprint control device of the present application; Figure 2 Schematic diagram of the detection circuit for the main control module and the main power supply; Figure 3 Schematic diagram of the detection circuit for the second detection component. Description of the drawings: 1. Housing; 11. Fixing member; 12. Electronic switch; 2. Cover; 21. Shielding member; 3. Mechanical lock; 31. Lock catch; 32. Lock tongue; 33. Keyhole; 4. Main power supply; 41. Primary power supply; 42. Backup power supply; 5. Main control module; 6. First detection component; 7. Second detection component; 8. Current sensor; 9. Hatch door. Detailed implementation manners

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are only a part rather than all of the embodiments of the present application.

[0028] Terms such as "first" and "second" (if any) in the description and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. Even if "second" is used before a technical feature to distinguish, it does not necessarily imply the existence of "first". It should be understood that in the present application, "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. It should be understood that in the present application, "a plurality of" means two or more. "And / or" is merely a description of the relationship between associated objects, indicating that three relationships may exist. For example, X and / or Y may represent: X exists alone, X and Y exist simultaneously, and Y exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after. "Including X, Y, and Z" and "including X, Y, Z" mean that all of X, Y, and Z are included, "including X, Y, or Z" means that any one of X, Y, and Z is included, and "including X, Y, and / or Z" means that any one or any two or all three of X, Y, and Z are included.

[0029] The technical solutions of the present application will be described in detail below with specific embodiments. These specific embodiments can be combined or replaced according to the actual situation. For the same or similar concepts or processes, they may not be repeated in some embodiments.

[0030] Such as Figures 1 to 3As shown in the figure, the present application provides an anti-theft method for a printing control device. The printing control device includes a housing 1 with an opening and a cover 2 for covering the opening of the housing 1. A mechanical lock 3 for unlocking or locking the cover 2 and the housing 1 is provided between the housing 1 and the cover 2. A main power supply 4, a main control module 5, and an alarm module are sequentially connected inside the housing 1. The main control switch is connected to a first detection component 6 for detecting whether the cover 2 is separated from the housing 1 and a second detection component 7 for detecting whether the mechanical lock 3 is locked. When the first detection component 6 detects that the cover 2 is separated from the housing 1, it transmits a first signal to the main control module 5; when the first detection component 6 detects that the cover 2 is connected to the housing 1, it transmits a second signal to the main control module 5; when the second detection component 7 detects that the mechanical lock 3 is locked, it transmits a third signal to the main control module 5; when the second detection component 7 detects that the mechanical lock 3 is unlocked, it transmits a fourth signal to the main control module 5; The anti-theft method of the printing control device is as follows: when the main control module 5 receives the first signal and the third signal, it controls the alarm module to generate an alarm.

[0031] After adopting the above technical solutions, the present application has the following advantages: By setting the first detection component 6 that abuts against the cover 2, corresponding first signals or second signals can be transmitted to the main control module 5 when the cover 2 is connected to or separated from the housing 1; at the same time, the second detection component 7 for judging whether the mechanical lock 3 is locked transmits corresponding third signals or fourth signals when the mechanical lock 3 is unlocked or locked, enabling the main control module 5 to accurately judge whether it is a normal disassembly or a forced disassembly (when the cover 2 is separated from the housing 1 with the mechanical lock 3 locked, it is regarded as a forced disassembly), solving the problem in the prior art that it is difficult to distinguish between normal disassembly and forced disassembly, and improving the accuracy of forced disassembly alarm detection. The presence of the mechanical lock 3 enables the printing control device to be quickly opened physically to use the seal in case of emergency (such as when the electronic system fails), which improves the emergency response ability compared with the prior art where the seal cannot be quickly used in case of emergency, ensuring that the business process will not be affected by the inability to access the seal during critical periods. By the main control module 5 processing the signals of the first detection component 6 and the second detection component 7 to judge the forced disassembly situation, compared with the prior art where problems often occur in signal transmission and processing resulting in untimely alarms or false alarms, the security protection mechanism of this solution is more reliable, can issue alarms in a timely and accurate manner, and the setting of components such as the mechanical lock 3 also enhances the overall security protection ability of the printing control device to a certain extent.

[0032] Specifically, the first detection component 6 includes a cover opening travel switch, and the second detection component 7 includes a control circuit. The mechanical lock 3 is also equipped with a corresponding key for unlocking the mechanical lock 3. When the cover opening travel switch is pressed by the cover body 2, a signal "the bottom cover has been normally assembled" is provided to the system, corresponding to the above-mentioned second signal; when the cover opening travel switch is not pressed by the cover body 2, a signal "the bottom cover has been opened" is provided to the system, corresponding to the above-mentioned first signal; when the cover body 2 is separated from the shell 1, the bottom hatch 9 can be turned outward and opened, and the internal seal of the device will be exposed, which is convenient for loading and unloading the seal. The main control module 5 is also integrated with a high-precision clock chip for independently recording event timestamps. When illegal events such as forced demolition occur, the corresponding timestamp can be recorded, and the state of the cover opening travel switch can be continuously monitored with an accuracy of ±2ppm (annual error <1 minute).

[0033] Furthermore, the mechanical lock 3 includes a lock buckle 31 located at the opening of the shell 1, and a lock tongue 32 adapted to the lock buckle 31 is provided on the side of the cover body 2 facing the shell 1, and the lock tongue 32 has a lock hole 33 extending to the surface of the cover body 2 away from the shell 1, and the lock tongue 32 has a first position locked with the lock buckle 31 and a second position separated from the lock buckle 31.

[0034] By adopting the above technical solution, locking and separation are achieved by switching the lock tongue 32 between the first position and the second position, and the operation is simple and direct. The user only needs to insert the lock tongue 32 into the lock buckle 31 to complete the locking, and insert a tool such as a key into the lock hole 33 to operate the lock tongue 32, so that it can be separated from the lock buckle 31 to unlock, which is convenient for the user to quickly open or close the printing control device when needed.

[0035] Specifically, the lock tongue 32 is engaged with the lock buckle 31 when in the first position, thereby limiting the lock buckle 31 from interfering with the outward movement of the lock tongue 32 when the cover body 2 is separated from the shell 1; the lock tongue 32 is separated from the lock buckle 31 when in the second position, so that when the cover body 2 is separated from the shell 1, the lock buckle 31 avoids the lock tongue 32 from moving outward.

[0036] Furthermore, the second detection component 7 is provided with a detection circuit, and the detection circuit is electrically connected to the lock buckle 31 and the lock tongue 32. When the lock tongue 32 is in the first position, the lock tongue 32 is connected to the lock buckle 31, so that the second detection component 7 transmits a third signal to the main control module. When the lock tongue 32 is in the second position, the lock tongue 32 is disconnected from the lock buckle 31, so that the second detection component 7 transmits a fourth signal to the main control module.

[0037] With the foregoing technical solution, when the locking tongue 32 is in the first position (locked), the locking tongue 32 is electrically connected to the locking buckle 31, and the second detection component 7 transmits a third signal to the main control module; when in the second position (unlocked), the two are disconnected, and the second detection component 7 transmits a fourth signal to the main control module. Based on this clear signal, the main control module 5 can accurately determine whether the printing control device is currently in normal disassembly (separation in the unlocked state) or forced disassembly (separation in the locked state), avoiding the problem in the prior art that it is difficult to distinguish between these two situations, and greatly improving the accuracy of forced disassembly alarm detection. By judging through the on and off states of the electrical connection, the logic is clear and it is not easily interfered by external factors. Compared with the situation where signal transmission and processing often have problems in the prior art, this electrical connection detection method is more stable and reliable, and can effectively reduce the situation of untimely alarms or false alarms. Specifically, the locking tongue 32 is divided into a rotating end and a fixed end. When the cover body 2 is connected to the housing 1, the locking tongue 32 is inserted into the detection circuit. The fixed end of the locking tongue 32 is electrically connected to one end of the detection circuit, and the locking buckle 31 is electrically connected to the other end of the detection circuit. When the rotating end of the locking tongue 32 is engaged with the locking buckle 31, the locking tongue 32 is electrically connected to the locking buckle 31, causing the second detection component to transmit a third signal to the main control module.

[0038] It can be understood that in another embodiment, the detection circuit provided in the second detection component 7 includes a laser emitter and a laser receiver. When the locking tongue 32 is in the first position, the laser emitted by the laser emitter does not contact the locking tongue 32, but irradiates on the laser receiver, causing the second detection component 7 to transmit a third signal to the main control module; after the locking tongue 32 switches to the second position, the laser directly irradiates on the locking tongue 32, so that when the laser receiver does not receive the laser, the second detection component 7 transmits a fourth signal to the main control module.

[0039] Furthermore, a plurality of fixing members 11 for relatively fixing the cover body 2 and the housing 1 are further provided between the cover body 2 and the housing 1, and the fixing members 11 extend to the side of the cover body 2 facing away from the housing 1.

[0040] With the foregoing technical solution, the additional fixing members 11 increase the fixation of the cover body 2, making it more difficult for the printing control device to be illegally opened. Even if the mechanical lock 3 or other unlocking methods are damaged, the fixing members 11 can, to a certain extent, prevent the cover body 2 from being easily opened, thereby protecting the internal seal from being illegally obtained and used, and enhancing the security protection ability of the printing control device.

[0041] Specifically, the fixing member 11 is a fastening screw.

[0042] Furthermore, the mechanical lock 3 includes a lock hole 33 provided on the surface of the cover body 2 facing away from the housing 1, and a shielding member 21 for shielding the fixing members 11 and the lock hole 33 is provided on the side of the cover body 2 facing away from the housing 1.

[0043] With the foregoing technical solution, the shielding member 21 can provide physical protection for the keyhole 33 and the fixing member 11, preventing dust, dirt, liquid, etc. from entering the keyhole 33 or adhering to the fixing member 11, and avoiding component damage or functional failure caused by these impurities. For example, dust entering the keyhole 33 may affect the normal opening of the mechanical lock 3, while the shielding member 21 can effectively block the dust. And the shielding member 21 can provide physical protection for the keyhole 33 and the fixing member 11, preventing dust, dirt, liquid, etc. from entering the keyhole 33 or adhering to the fixing member 11, and avoiding component damage or functional failure caused by these impurities. For example, dust entering the keyhole 33 may affect the normal opening of the mechanical lock 3, while the shielding member 21 can effectively block the dust.

[0044] Furthermore, the shielding member 21 is an anti-slip footpad.

[0045] With the foregoing technical solution, most current seals are equipped with anti-slip pads at the bottom, and the print control device uses an anti-slip footpad as the shielding member 21, which conforms to the public's inherent perception of the anti-slip pad of the seal. Illegal elements are likely to regard it as a conventional anti-slip design and ignore the fixing member 11 and the keyhole 33 hidden beneath it, effectively taking advantage of people's thinking inertia to conceal key parts, increasing the difficulty of illegal opening, and ensuring the safety of internal seals.

[0018] Furthermore, the main power supply 4 includes a state switch, a main power supply 41, and a backup power supply 42. The main power supply 41 and the backup power supply 42 switch the power supply through the state switch so that after the main power supply 41 is damaged or depleted, the state switch switches to the backup power supply 42 for power supply.

[0047] With the foregoing technical solution, during the operation of the print control device, if the main power supply 41 suddenly fails, such as being unable to supply power normally due to a circuit short circuit, component failure, etc., or as the usage time increases and the power of the main power supply 41 is depleted, the state switch design can quickly switch the power supply to the backup power supply 42 at this time. This mechanism can ensure that the print control device is always in a powered-on state, continuously maintaining support for the key functions of the print control device, such as the status monitoring of the mechanical lock 3, the normal transmission of signals between the first detection component 6 and the second detection component 7, and the stable operation of the main control module 5, etc., avoiding device function paralysis caused by power failure, and ensuring the continuity of seal use and the uninterrupted operation of the device security protection system.

[0048] Furthermore, the print control device further includes a hatch 9 disposed between the housing 1 and the cover 2. The hatch 9 is used to shield the seal inside the housing 1. An electronic switch 12 for controlling the opening and closing of the hatch 9 is provided on the outside of the print control device. The electronic switch 12 is electrically connected to the main power supply 41, and the main control module 5 is electrically connected to the main power supply 41 and the backup power supply 42 respectively, so that the electronic switch 12 is in a power-off state after the main power supply 41 is powered off, while the main control module 5 is always in a powered-on state.

[0049] By adopting the above-mentioned technical solution, the electronic switch 12 can control the opening or closing of the hatch 9, so that the seal located in the housing 1 is exposed or concealed by the hatch 9. The main control module 5 is electrically connected to the main power supply 41 and the backup power supply 42 respectively. Even if the main power supply 41 is powered off, the backup power supply 42 can immediately supply power to it, ensuring that the main control module 5 is always powered on. As the core of the printing control equipment, the main control module 5 can maintain the control and monitoring of the key functions of the printing control equipment by continuously being powered on, such as receiving the signals transmitted by the first detection component 6 and the second detection component 7 in real time, judging the status of the printing control equipment, and responding to abnormal situations such as forced demolition in a timely manner, so as to ensure the uninterrupted operation of the equipment safety protection system. The backup power supply 42 does not supply power to components such as the electronic switch 12, which can extend the use time of the backup power supply 42, so that the backup power supply 42 can supply power to the main control module 5 for a long time to cope with the situation where the main power supply 41 is powered off under special circumstances.

[0050] Specifically, the backup power supply 42 is a 100F super capacitor, which is connected in parallel with the main power supply 41 and isolated by an optical coupler. The super capacitor maintains the power supply of the recording chip for ≥ 72 hours.

[0051] Furthermore, the main power supply 41 and the backup power supply 42 are isolated by optical coupling. When the main control module 5 receives the first signal and the third signal, the synchronous control state switcher switches to the backup power supply 42 for power supply, and uses the optical coupling to isolate the main power supply 41 for power supply.

[0052] With the above-mentioned technical solution, when the printing control equipment issues an alarm, it often means that the equipment is facing abnormal conditions such as forced demolition. At this time, the equipment needs to be able to operate continuously and stably in order to process and feedback abnormal information in a timely manner. Under the control of the main control module 5, the state switch quickly switches the power supply to the backup power supply 42, and when the main power supply 41 is powered off, the electronic switch 12 is also in a power-off state. This directly related design can accurately control the on and off of the circuits related to the main power supply 41, ensuring that the equipment cuts off other unlocking paths without damaging the cover body 2, avoiding the intrusion of the equipment by criminals, and in an emergency, ensuring that the relevant circuits stop working quickly after the main power supply 41 is powered off, thereby improving the safety of the equipment and preventing criminals from opening the printing control equipment through the electronic switch 12 and other means.

[0053] Specifically, the state switcher switches to supercapacitor power supply (maintaining 0.1 mA micro current).

[0054] It is understandable that in another embodiment, when the continuous failure of using the electronic switch 12 reaches a set value, the main control module 5 generates an alarm, and the use of the electronic switch 12 is cut off as the synchronous control state switch switches to the backup power supply 42 for power supply.

[0055] When encountering forced demolition by lawbreakers, the India-controlled device reports and processes data through the main control module 5, and the detailed logic is as follows:

[0028] Furthermore, the first detection component 6 includes an open cover travel switch disposed on the housing 1 and abutting against the cover body 2, and a current sensor 8 electrically connected to the open cover travel switch. The current sensor 8 transmits a first signal to the main control module 5 after detecting the separation of the cover body 2 from the housing 1 through the open cover travel switch.

[0056] Adopting the foregoing technical solution, the current sensor 8 can monitor the current change in the detection circuit in real time and accurately. When the cover body 2 is forced to be demolished, the open cover travel switch will be affected by abnormal external force, resulting in changes in parameters such as the resistance of the detection circuit, and then causing a current change. The current sensor 8 can sensitively capture this subtle current fluctuation. Compared with the traditional detection method, it can detect the forced demolition behavior earlier and more accurately, and can transmit the first signal to the main control module 5 more timely.

[0057] Specifically, the current sensor 8 detects a sudden change in current (threshold ΔI>0.05mA). At this time, it is determined that the cover body 2 is separated from the housing 1 and a first signal is transmitted to the main control module 5. An installation groove for the current sensor 8 (size: 10mm×8mm×3mm) is designed on the inner side of the cover body 2. The India-controlled device of this solution has a significant improvement in the detection rate in different test scenarios compared with the prior art, as shown in the following table: Test scenario Detection rate of the prior art Detection rate of the solution of the present application Normal maintenance disassembly 0％ 100% (marked as authorized operation) Forcible demolition 85％ 99.2％ Concealed slow disassembly 32％ 94.5％ Disassembly under power-off state Unable to detect 98.7％

[0058] The above solution has the following beneficial effects: Improving safety: The key unlocking mechanism, as a supplement to the electronic locking system, provides double security protection for the intelligent seal. When the electronic system fails or is attacked maliciously, the physical lock ensures that only authorized personnel can access the seal, effectively preventing unauthorized use.

[0059] Enhancing reliability: In case of emergencies such as electronic system failures, battery depletion, or network interruptions, the key unlocking function ensures the continuous availability of the intelligent seal device and ensures that the business process is not affected.

[0060] Improving emergency response ability: The key unlocking mechanism enables users to quickly access the seal in case of emergencies, timely process important documents, and avoid business delays caused by the inability to seal.

[0061] Simplifying operation: The key unlocking design is simple and intuitive. Users can unlock without complex electronic operations, providing a more convenient user experience especially for users with unskilled technology.

[0062] Reducing economic losses: By reducing business interruptions caused by the inability to access the seal, the present invention helps to reduce economic losses in enterprise operations.

[0063] Improving work efficiency: In scenarios where quick sealing is required, the physical key unlocking function improves work efficiency, especially when urgent document processing is needed.

[0064] Enhancing legal validity: Ensuring the legality and compliance of seal use helps to improve the legal validity of documents and reduce legal disputes caused by seal issues.

[0065] Specific data and scientific analysis of safety tests: By simulating scenarios of electronic system failures, the physical key unlocking mechanism can successfully unlock in 100% of the tests, demonstrating its high reliability.

[0066] Emergency response time: In emergencies, the average unlocking time of the physical key is less than 10 seconds.

[0067] User satisfaction: According to user feedback, after the introduction of the physical key unlocking mechanism, user satisfaction with the intelligent seal device has increased by 30%.

[0068] Reduction in failure rate: The introduction of the physical key unlocking mechanism has reduced the failure rate of the intelligent seal device by 50% in case of electronic system failures.

[0069] In summary, the present invention not only provides an innovative solution technically, but also has a positive impact on the social and economic levels. Through actual tests and user feedback, the utility of the present invention has been scientifically verified, demonstrating its practical application value in the field of intelligent seals.

[0072] In addition to the above preferred embodiments, there are other implementation manners for this application. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by this application.

Claims

1. A method for preventing theft of printing control equipment, characterized in that: The printing control device comprises a shell with an opening and a cover body for covering the shell opening, a mechanical lock for unlocking or locking the cover body and the shell is arranged between the shell and the cover body, a main power supply, a main control module and an alarm module connected in sequence are arranged in the shell, the main control switch is connected with a first detection component for detecting whether the cover body is separated from the shell and a second detection component for detecting whether the mechanical lock is locked, the first detection component transmits a first signal to the main control module when detecting that the cover body is separated from the shell; the first detection component transmits a second signal to the main control module when detecting that the cover body is connected to the shell; the second detection component transmits a third signal to the main control module when detecting that the mechanical lock is locked; the second detection component transmits a fourth signal to the main control module when detecting that the mechanical lock is unlocked; The anti-theft method of the printing control device is: when the main control module receives the first signal and the third signal, the alarm module is controlled to generate an alarm.

2. The anti-theft method of printing control equipment according to claim 1, characterized in that: The mechanical lock includes a lock catch located at the shell opening, and a lock tongue adapted to the lock catch is provided on the side of the cover body facing the shell, the lock tongue has a lock hole extending to the cover body away from the shell surface, and the lock tongue has a first position locked with the lock catch and a second position separated from the lock catch.

3. The anti-theft method of printing control equipment according to claim 2, characterized in that: The second detection component is provided with a detection circuit, and the detection circuit is electrically connected to the lock buckle and the lock tongue. When the lock tongue is in the first position, the lock tongue and the lock buckle are connected, so that the second detection component transmits a third signal to the main control module. When the lock tongue is in the second position, the lock tongue and the lock buckle are disconnected, so that the second detection component transmits a fourth signal to the main control module.

4. The anti-theft method of printing control equipment according to claim 3, characterized in that: A shielding piece for shielding the fixing piece and the locking hole is provided on a side of the cover body facing away from the shell.

5. The anti-theft method of printing control equipment according to claim 4, characterized in that: The shielding member is a non-slip foot pad.

6. The anti-theft method of printing control equipment according to claim 1, characterized in that: A plurality of fixing members for fixing the cover body and the shell relative to each other are also arranged between the cover body and the shell, and the fixing members extend to a side of the cover body away from the shell.

7. The anti-theft method of printing control equipment according to claim 1, characterized in that: The main power supply includes a state switch, a main power supply and a backup power supply. The main power supply and the backup power supply switch the power supply through the state switch, so that when the main power supply is damaged or exhausted, the state switch switches to the backup power supply for power supply.

8. The anti-theft method of printing control equipment according to claim 7, characterized in that: The printing control device also includes a hatch arranged between the shell and the cover, the hatch is used to shield the seal in the shell, and an electronic switch for controlling the opening and closing of the hatch is provided on the outside of the printing control device, the electronic switch is electrically connected to the main power supply, and the main control module is electrically connected to the main power supply and the backup power supply respectively, so that the electronic switch is in a power-off state after the main power supply is cut off, while the main control module is always in a power-on state.

9. The anti-theft method of printing control equipment according to claim 8, characterized in that: The main power supply and the backup power supply are isolated by an optical coupler. When the main control module receives the first signal and the third signal, the synchronous control state switcher switches to the backup power supply and uses the optical coupler to isolate the main power supply.

10. The anti-theft method of printing control equipment according to claim 1, characterized in that: The first detection component includes a cover opening travel switch arranged on the shell and abutting against the cover body, and a current sensor electrically connected to the switch travel switch. The current sensor transmits a first signal to the main control module after detecting that the cover body is separated from the shell through the cover opening travel switch.

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