A control system and control method for an electronic seal lock

Abstract

The present invention discloses a control system and a control method of an electronic seal lock. The present invention realizes clamping objects of different volumes on a bearing component by arranging an adjustable engaging component in the seal lock housing and adjusting the engaging position of the adjustable engaging component and the locking component. The electronic seal lock in this embodiment can not only be unlocked manually, but also unlocked by a power component in the lock body, and unlocked by an unlocker outside the lock body. Furthermore, when the power component and / or the unlocker are in an abnormal state and cannot be unlocked, manual emergency unlocking can be realized through an emergency unlocking hole arranged on the lock housing. At the same time, thanks to the second travel switch and the third travel switch connected to the first circuit board, the unlocking status information and the number of unlocking times will be accurately recorded in the case of automatic or manual unlocking. The electronic seal lock provided by the present invention has a simple structure and is easy to operate, which provides convenience for users when using the seal lock.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic lock applications, and in particular to a control system and a control method for an electronic seal lock. Background Art

[0002] A signature lock is a self-locking, anti-opening disposable plastic shell seal with a barcode, a two-dimensional barcode, and an RFID chip. Each seal has a unique code, including a barcode or two-dimensional code for smart handheld terminals to recognize, an RFID chip, and a code for the human eye to recognize; the electronic seal uses non-contact automatic recognition technology, which can automatically identify the target, obtain relevant data, and can intelligently read and write and communicate to achieve computer software management; the digital ID of the electronic seal label is globally unique, and the sealing and unsealing management process, data download and remote transmission are completed through the RFID reader / writer. Therefore, the signature lock is widely used in logistics management.

[0003] In the prior art, the sealing lock has certain restrictions on the volume of the object to be locked or engaged during use. It is inconvenient to lock or engage objects that are too large or too small, resulting in limitations in application. This situation also brings many inconveniences to users.

[0004] Therefore the prior art still needs to be improved and enhanced. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a control system and a control method for an electronic seal lock, aiming to overcome the defect that the existing seal lock is not convenient for adjusting the engagement of objects of different volumes.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A control system for an electronic seal lock, comprising a seal lock;

[0008] The sealing lock includes: a lock shell, an emergency unlocking hole arranged on the lock shell, a locking component arranged in the lock shell, a bearing component, a first circuit board, an adjustable locking component for engaging with the locking component to lock the sealing lock, an unlocking push block for pushing the locking component to separate from the adjustable locking component to unlock the sealing lock, a first travel switch electrically connected to the first circuit board for limiting the bearing component, and a second travel switch electrically connected to the first circuit board for limiting the unlocking push block.

[0009] Furthermore, the control system of the electronic seal lock also includes a power component for pushing or pulling the locking component to engage or separate with the adjustable engaging component to lock or unlock the seal lock; the power component includes: a first motor, a first gear set, a screw and a third travel switch for controlling the stroke of the screw; the first gear set is fixedly connected to the first motor; one end of the screw is fixedly connected to the first gear set, and the other end is connected to the locking component.

[0010] Furthermore, the control system of the electronic seal lock also includes an unlocker arranged on one side of the seal lock for opening the seal lock; the unlocker includes: an unlocker housing, an unlocking hole arranged on the unlocker housing, a pushing component arranged in the unlocker housing for pushing the unlocking push block, and a second circuit board electrically connected to the pushing component.

[0011] Furthermore, in the control system of the electronic seal lock, the locking assembly includes a fixed block, a spring, a locking pin for locking the adjustable locking component, and a locking button elastically arranged in the lock housing for locking the locking pin; one end of the fixed block is connected to the other end of the screw, and the other end is connected to one end of the spring, and the other end of the spring is connected to one end of the locking pin.

[0012] Furthermore, in the control system of the electronic seal lock, the first circuit board is also provided with a first control chip and a first communication module connected to the first control chip and / or a storage chip connected to the first communication module; the lock housing is provided with a wireless signal sensing board for identifying the seal lock code;

[0013] The first control chip is electrically connected to the second travel switch, and is used to obtain the unlocking status information and unlocking times of the sealing lock, and save the unlocking status information and unlocking times to the first communication module, or save the unlocking status information and unlocking times to the storage chip.

[0014] Furthermore, in the control system of the electronic seal lock, the adjustable engaging component includes a cable tie, one end of which is fixedly disposed in the lock housing, and the other end extends out of the lock housing, and the cable tie is provided with a plurality of engaging teeth that engage with the lock pin.

[0015] Furthermore, in the control system of the electronic seal lock, the adjustable engaging component includes a ratchet, a steel rope and a driven wheel; the inner edge of the ratchet is provided with a plurality of engaging teeth engaged with the locking pin, and the outer edge is an arc surface or a tooth surface; one end of the steel rope is fixedly arranged in the lock housing, and the other end is arranged between the outer edge of the ratchet and the driven wheel and extends out of the lock housing.

[0016] Furthermore, in the control system of the electronic seal lock, the pushing component includes: a second motor, a second gear set and an unlocking push rod; the second gear set is fixedly connected to the second motor; the unlocking push rod is composed of a separate front end and a rear end, and the front end and the unlocking push block are respectively arranged on both sides of the emergency unlocking hole, and when unlocking, the front end is pushed through the emergency unlocking hole to push the unlocking push block to move; the rear end is connected to the second gear set; the second motor is connected to the second circuit board.

[0017] Furthermore, in the control system of the electronic seal lock, an emergency unlocking hole is provided on the unlocking device housing, and an emergency push rod is provided on the front end portion, one end of the emergency push rod is connected to the front end portion, and the other end extends out of the emergency unlocking hole; a second control chip and a second communication module are provided on the second circuit board, and the second communication module communicates with the first communication module and the background server respectively.

[0018] A control method for an electronic seal lock, comprising: when the seal lock is in an unlocked state, using a driving component to push a fixed block to compress a spring, pressing a locking button, so that a lock pin engages with the adjustable engaging component, and locking the seal lock;

[0019] When the seal lock is in a locked state, the push assembly is used to push the unlocking push block or the power assembly is used to pull the fixed block to separate the lock pin from the adjustable engaging component to unlock the seal lock.

[0020] The technical solution adopted by the present invention has the following beneficial effects:

[0021] The present invention arranges an adjustable engaging component in the seal lock housing, and adjusts the engaging position of the adjustable engaging component and the locking component, thereby clamping objects of different volumes on the load-bearing component. The electronic seal lock in this embodiment can not only be unlocked manually, but also can be unlocked by a power component arranged in the seal lock body, and can also be unlocked by an unlocker outside the lock body. Furthermore, when the power component and / or the unlocker are in an abnormal state and cannot be unlocked, manual emergency unlocking can be achieved through an emergency unlocking hole arranged on the lock housing. At the same time, thanks to the second travel switch and the third travel switch connected to the first circuit board, the unlocking status information and the number of unlocking times will be accurately recorded in the case of automatic or manual unlocking. The electronic seal lock provided by the present invention has a simple structure and is easy to operate, which provides convenience for users when using it. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the internal structure of a control system of an electronic seal lock provided by the present invention;

[0023] Figure 2 A front view of a control system of an electronic seal lock provided by the present invention;

[0024] Figure 3 A right view of a control system of an electronic seal lock provided by the present invention;

[0025] Figure 4 A schematic diagram of the structure of an electronic seal lock provided by the present invention when it is unlocked;

[0026] Figure 5 A schematic diagram of the internal structure of a second engaging component in an electronic seal lock provided by the present invention;

[0027] Figure 6 A front view of a second engaging component in an electronic seal lock provided by the present invention;

[0028] Figure 7 A schematic diagram of the internal structure of the unlocking device provided by the present invention;

[0029] Figure 8 A schematic diagram of manual unlocking operation of the unlocking device provided by the present invention;

[0030] Fig. 9 This is a principle structural block diagram of an electronic seal lock control system provided by the present invention.

[0031] In the figure: 10, seal lock; 20, unlocking device; 30, mobile terminal; 40, back-end server; 50, seal lock manager; 100, lock housing; 101, bearing component; 102, first circuit board; 104, unlocking push block; 105, first travel switch; 106, second travel switch; 107, fixing block; 108, spring; 109, locking pin; 110, unlocking button; 111, first power supply; 112, cable tie; 113, ratchet; 114, steel rope; 115, driven wheel; 116, first gear set; 117, screw; 118, emergency unlocking hole; 200, unlocking device housing; 210, second circuit board; 220, second gear set; 230, unlocking push rod; 231, front end; 232, rear end; 240, emergency push rod; 250, second power supply. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] In the embodiments and patent claims, unless otherwise specified, "a", "an" and "the" may refer to a single or a plurality of items.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] Embodiment 1:

[0036] The present invention discloses a control system for an electronic seal lock. Figure 1 and Figure 3 , including seal lock;

[0037] Please continue reading Figure 1 and Figure 3 The sealing lock includes: a lock shell 100, an emergency unlocking hole 118 arranged on the lock shell, a locking component arranged in the lock shell, a bearing component 101, a first circuit board 102, an adjustable locking component for engaging with the locking component to lock the sealing lock, an unlocking push block 104 for pushing the locking component to separate from the adjustable locking component to unlock the sealing lock, a first travel switch 105 electrically connected to the first circuit board for limiting the bearing component, and a second travel switch 106 electrically connected to the first circuit board for limiting the unlocking push block; wherein, the bearing component includes two bases symmetrically arranged in the lock shell, two springs arranged on the two bases, and a bearing platform connected to the spring and arranged outside the lock shell, the bearing platform is used to place clamped objects, when there is a heavy object on the bearing platform, the bearing platform will move down and touch the first travel switch 105 to close it, and the first circuit board 102 electrically connected to the first travel switch determines whether there is an object placed on the bearing platform through the closed state of the first travel switch.

[0038] Please continue reading Figure 4 and Figure 5The control system of the electronic seal lock also includes a power component for pushing or pulling the locking component to engage or separate with the adjustable engaging component to lock or unlock the seal lock; the power component includes: a first motor (not shown in the figure), a first gear set 116, a screw 117 and a third travel switch (not shown in the figure) for controlling the screw stroke; the first gear set 116 is fixedly connected to the first motor; one end of the screw 117 is fixedly connected to the first gear set, and the other end is connected to the locking component.

[0039] Please continue reading Figure 1 and Figure 2 The control system of the electronic seal lock also includes an unlocking device arranged on one side of the seal lock for opening the seal lock; the unlocking device includes: an unlocking device housing 200, an unlocking hole arranged on the unlocking device housing, a pushing component arranged in the unlocking device housing for pushing the unlocking push block, and a second circuit board 210 electrically connected to the pushing component.

[0040] The locking assembly includes a fixed block 107, a spring 108 with one end arranged on the fixed block, a locking pin 109 for locking the adjustable locking component, and a locking button 110 elastically arranged in the lock housing for locking the locking pin; one end of the fixed block is connected to the other end of the screw, and the other end is connected to one end of the spring, and the other end of the spring is connected to one end of the locking pin.

[0041] Please continue reading Figure 3 A locking hole (not shown in the figure) is provided on the lock shell, one end of the locking button 110 is elastically arranged in the lock shell, and the other end extends out of the locking hole; the locking button releases the lock pin 109 when locking.

[0042] In the specific embodiment, please see Figure 1 , Figure 3 and Figure 4; The specific steps of manual unlocking and locking of the control system of the electronic seal lock: one end of the lock button 110 is elastically connected to a spring fixedly arranged in the lock shell 100, and the other end extends out of the lock hole; the lock pin is provided with a groove that engages with the lock button, and the lock button is correspondingly provided with a convex block that cooperates with the groove. In the unlocked state, the lock button is stuck to the lock pin body and cannot move due to the tension of the spring connected to it (the power component is not started at this time, so the fixed block cannot move, and the spring is compressed between the lock pin and the fixed block), and the adjustable engaging part at this time can be freely adjusted; when the lock button is pressed, the lock pin is not blocked by the lock button, and the tension of the spring connected to the lock pin is released, so that the lock pin moves to engage with the adjustable engaging part to realize the locking function of the seal lock. At the same time, the lock pin pushes the spring connected to it during the locking process. When the door is unlocked, the unlock push block is manually pushed through the emergency unlock hole 118, so that the lock pin in contact with it returns and engages with the locking button to realize the unlocking function. At the same time, the unlock push block contacts the second stroke switch to close it, and the first circuit board electrically connected to the second stroke switch determines that the lock pin has been separated from the adjustable locking component through the closed state of the second stroke switch, and records that it is in the unlocked state. It can be imagined that a first power supply 111 for powering the first circuit board 102 is provided in the lock housing; wherein, after locking, the spring force of the spring in the locking assembly will rebound after the release force, please refer to Figure 1 The position where the front end of the locking pin is engaged with the adjustable card and component is an inclined surface, and the shape of the card tooth of the adjustable card component is consistent with the shape of the front end of the locking pin. After the locking pin is engaged with the adjustable card component, the resilience of the spring will drive the front end of the locking pin to move downward, but when moving downward, it cannot move because the card tooth contacts the plane where the locking pin abuts, and the weight of the unlocking push block cannot drive the locking pin to rebound; it is worth mentioning that when the adjustable card component is engaged with the locking pin, the adjustable card component can move downward at this time (the upward movement trend abuts against the bottom surface of the front end of the locking pin and cannot move), and when the adjustable card component is pulled to move downward, the inclined surface of the adjustable card component and the inclined surface of the front end of the locking pin produce relative movement, thereby causing the adjustable card component to move downward, compressing the space between the adjustable card component and the bearing component.

[0043] For more specific embodiments, please refer to Figure 4 and Figure 5, which are the specific steps of the control system of the electronic seal lock to realize unlocking and locking through the power component: the first motor drives the first gear group to rotate, thereby driving the screw to move forward or backward; when it is in the unlocked state, the screw moves forward, and the fixed block connected to it moves forward under the action of the driving force and squeezes the spring connected to the lock pin, and the lock pin has a tendency to move forward under the action of the spring force, but because the locking button and the lock pin are in a locked state at this time, the lock pin cannot move. At this time, the locking button is pressed, and the spring tension squeezed on the lock pin is released (towards the end where the spring is connected to the lock pin), so that the lock pin is engaged with the adjustable locking component to realize the locking function; when it is in the locked state, the first motor drives the first gear group to rotate, thereby driving the screw to move forward or backward; when it is in the unlocked state, the screw moves forward, and the fixed block connected to it moves forward under the action of the driving force and squeezes the spring connected to the lock pin, and the lock pin has a tendency to move forward under the action of the spring force. The rotation of the wheel group drives the screw rod to move backward, and the fixed block also moves backward accordingly. The spring is no longer squeezed by the fixed block, and the tension at one end connected to the fixed block is released, pulling the lock pin backward to separate it from the adjustable engaging component. At the same time, the locking button engages with the lock pin due to the backward movement of the lock pin (a pit is provided on the lock pin, and a boss is provided on the locking button. When the lock pin moves backward, the boss on the locking button cooperates with the pit on the lock pin to achieve engaging limit), thereby realizing the unlocking function; wherein, the third stroke switch is disconnected from the screw rod when the screw rod moves forward, and transmits the locking signal to the first circuit board; when the screw rod moves backward and contacts the third stroke switch, the third stroke switch is closed, and the unlocking signal is transmitted to the first circuit board.

[0044] It should be noted that the power of the above-mentioned first motor is provided by the first power supply inside the lock housing, and the first motor is controlled by the first circuit board; the first motor, the first gear set, the screw and the third stroke switch for controlling the stroke of the screw can realize automatic locking and unlocking of the seal lock, and no external unlocking tool is required to unlock the lock, thereby realizing a more centralized function of the seal lock. Of course, the components of the power assembly mentioned above are only examples and are not used to limit the present invention. Any other device that can generate power can be used as long as it can make the lock pin move in two opposite directions.

[0045] At the same time, the emergency unlocking hole 118 provided on the lock housing can be used for when the power component inside the seal lock fails and the lock pin cannot be pulled to unlock, some tools for manual unlocking (for example, a manual push rod) can be passed through the emergency unlocking hole to push the unlocking push block to separate the lock pin from the adjustable card and the components, or when the unlocking device is normally used, the pushing component therein passes through the emergency unlocking hole to push the unlocking push block to separate the lock pin from the adjustable card and the components, that is, the emergency unlocking hole is used in two situations, one is that it can be used as a manual unlocking channel in an emergency, and the other is that it is a normal unlocking channel when unlocking tools such as unlocking devices are used; it is worth mentioning that when the driving component fails, the third travel switch therein has no state switching, so the state of the seal lock cannot be judged therefrom, but the second travel switch at this time will produce an on-off state switching due to the movement of the unlocking push block, and the first circuit board at this time judges whether the seal lock is in a locked or unlocked state based on the signal obtained from the second travel switch, so as to save the accurate unlocking and locking times; therefore, the unlocking state information and unlocking times will be accurately recorded regardless of automatic or manual unlocking.

[0046] As a further solution, the first circuit board is also provided with a first control chip and a first communication module (not shown in the figure) connected to the first control chip; and / or a storage chip (not shown in the figure) connected to the first communication module, and the lock housing is provided with a wireless signal sensing board (not shown in the figure); the wireless signal sensing board stores the unique code of the sealing lock, and the sealing lock is identified by the unique code; the unique code is also stored in the storage chip, and the first control chip is used to generate a lock status code and send it to the first communication module when the position of the unlocking push block detected by the second travel switch changes, and the first communication module updates the stored lock status code according to the received lock status code, or the first control chip controls the lock status code to be saved in the storage chip connected to it.

[0047] The wireless signal sensing plate can be replaced by setting a QR code identifier storing the seal lock code, and the seal lock code contained therein can be obtained by scanning the QR code.

[0048] For further solutions, please refer to Figure 1 The adjustable engaging component includes a cable tie 112, one end of which is fixedly arranged in the lock shell, and the other end extends out of the lock shell, and the cable tie is provided with a plurality of teeth engaged with the lock pin; the cable tie is a flexible body, one end of which is fixedly arranged in the lock shell, the middle part is exposed to the lock shell, and is arranged above the bearing component for clamping objects; the other end passes through the lock shell and extends out of the bottom of the lock shell; it can be imagined that a tensioning wheel is also provided at the other end of the cable tie for providing tensioning force to the cable tie.

[0049] Specifically, the cable tie 112 is also provided with a plurality of latching teeth for engaging with the locking pin. When locking is required, the cable tie is pulled to expose the other end of the lock shell to change its position, thereby making the middle part of the cable tie closer to the load-bearing component and adjusting the size of the space between the load-bearing component and the cable tie. When the cable tie is pulled to reduce the space between the load-bearing component and the cable tie to a desired size, the first motor drives the first gear set to rotate, thereby driving the screw to move. The fixed block connected to the screw moves forward under the action of the driving force and squeezes the spring connected to the locking pin. The locking pin has a tendency to move forward under the action of the spring force, and then the locking button 110 is pressed. , so that the locking pin moves under the tension of the squeezed spring until it engages with the cable tie, thereby realizing the locking function of the seal lock; when the cable tie is engaged with the locking pin, the cable tie can move downward (the upward movement trend abuts against the bottom surface of the front end of the locking pin and cannot move), and when the cable tie is pulled downward, the inclined surface of the cable tie and the inclined surface of the front end of the locking pin produce relative movement, so that the cable tie moves downward, compressing the space between the cable tie and the load-bearing component. The more it is pulled downward, the tighter the object on the load-bearing component is compressed. Therefore, by adjusting the different positions of the cable tie and engaging the locking pin with the teeth on the cable tie, the clamping of objects of different volumes is achieved.

[0050] For further solutions, see Figure 5 and Figure 6 In the case where a cable tie is provided as an adjustable engaging component as described above, the present invention also provides another adjustable engaging component; the adjustable engaging component includes a ratchet 113, a steel rope 114 and a driven wheel 115; the inner edge of the ratchet is provided with a plurality of engaging teeth engaged with the locking pin, and the outer edge is an arc surface or a tooth surface; one end of the steel rope is fixedly arranged in the lock housing, and the other end is arranged between the outer edge of the ratchet and the driven wheel and extends out of the lock housing; wherein the steel rope is a flexible body, one end of which is fixedly arranged inside the lock housing, the middle part is exposed from the lock housing, and is arranged above the bearing component for clamping objects; the other end passes through the lock housing and extends out from the bottom of the lock housing; it can be imagined that a tensioning wheel is also arranged at the other end of the steel rope for providing tensioning force to the steel rope.

[0051] In a specific embodiment, the ratchet and the driven wheel are arranged in parallel inside the lock shell, and the middle of the two wheels is the other end of the steel rope. The inner edge portion of the ratchet is provided with a plurality of teeth engaged with the locking pin, and the outer edge portion is an arc surface or a tooth surface, which is used to generate relative movement with the steel rope; for example, by pulling the other end of the steel rope to expose the lock shell, its position is changed, and at the same time, the ratchet and the driven wheel in contact with the other end of the steel rope also start to rotate, so that the middle part of the steel rope is closer to the load-bearing component, and the size of the space between the load-bearing component and the cable tie is adjusted; when the steel rope is pulled to reduce the space between the load-bearing component and the cable tie to the desired size, the first motor drives the first gear set to rotate, thereby driving the screw to move, and the fixed block connected to the screw moves forward under the action of the driving force and squeezes The spring connected to the locking pin tends to move forward under the action of the spring force. Subsequently, the locking button is pressed to make the locking pin move under the tension of the squeezed spring until it engages with the ratchet, thereby realizing the locking function of the sealing lock. When the ratchet engages with the locking pin, the steel rope can move downward at this time (the upward movement tendency cannot move because the ratchet abuts against the bottom surface of the front end of the locking pin). When the steel rope is pulled downward, the inclined surface of the locking teeth on the inner edge of the ratchet and the inclined surface of the front end of the locking pin produce relative movement, thereby causing the steel rope to move downward, compressing the space between the steel rope and the load-bearing component. The further it is pulled downward, the tighter the object on the load-bearing component is compressed. Therefore, by adjusting the different positions of the steel rope and engaging the locking pin with the locking teeth on the ratchet, the clamping of objects of different volumes is achieved.

[0052] For details, please continue to refer to Figure 1 and Figure 7 , which are specific steps for unlocking the lock through the unlocking device in the control system of the electronic seal lock: the pushing component includes: a second motor (not shown in the figure), a second gear set 220, and an unlocking push rod 230; the second gear set is fixedly connected to the second motor; the unlocking push rod is composed of a separate front end 231 and a rear end 232, and the front end and the unlocking push block are respectively arranged on both sides of the unlocking hole. When unlocking, the front end is pushed through the emergency unlocking hole to push the unlocking push block to move; the rear end is connected to the second gear set; the second motor is connected to the second circuit board.

[0053] The second motor drives the second gear set to rotate, thereby driving the unlocking push rod 230 to move. The front end of the unlocking push rod passes through the unlocking hole, pushes the unlocking push block, and then the locking component in contact with the unlocking push block is separated from the adjustable engaging part, thereby achieving unlocking; preferably, the front end of the unlocking push rod is elastically connected to the lock housing through a spring, which is convenient for faster return after unlocking; at the same time, the unlocking push block contacts the second travel switch to close it, and the first circuit board electrically connected to the second travel switch determines that the lock pin has been separated from the adjustable engaging part through the closed state of the second travel switch, and records that it is unlocked at this time; wherein, the power of the second motor is provided by the second power supply 250 arranged in the unlocker.

[0054] For further solutions, see Figure 8 The unlocking hole is arranged on the unlocking device housing, and an emergency push rod 240 is arranged on the front end portion, one end of the emergency push rod is connected to the front end portion, and the other end extends out of the unlocking hole; the second circuit board is provided with a second control chip and a second communication module, and the second communication module communicates with the first communication module and the background server respectively.

[0055] When the function of the second motor in the unlocking device housing driving the unlocking push rod to push the unlocking push block fails, that is, when the power of the second power supply is low and the threshold of the starting motor is reached, or when the second motor fails and cannot correctly drive the unlocking push rod to move, the front end of the unlocking push rod can be pushed to move by the emergency push rod in the unlocking hole, and the unlocking push block is pushed by the front end of the unlocking push rod, and then the unlocking push block pushes the locking pin and the adjustable locking component to separate; that is, the sealing lock in the present invention can not only be automatically unlocked by the unlocking device, but also can be manually unlocked by the emergency push rod provided on the unlocking device, thereby preventing the occurrence of emergencies and providing convenience for users.

[0056] As a further solution, the control system also includes a seal lock manager that establishes a connection with the background server; the seal lock manager is used to read the unlocking status information and unlocking times saved in the first communication module or the storage chip, and send the unlocking status information and unlocking times to the background server.

[0057] A second control chip (not shown in the figure) and a second communication module (not shown in the figure) connected to the second control chip are also provided on the second circuit board in the unlocking device housing. A wireless signal reader (not shown in the figure) is also provided on the unlocking device housing, such as a RFID reader, which is used to read the lock code stored in the reader from the wireless signal sensing board on the lock housing and send the lock code to the background server, and the background server obtains the unique code of the seal lock based on the lock code.

[0058] The wireless signal reader reads the lock code stored in the wireless signal sensing board and sends the lock code to the backend server. The backend server queries the lock status code corresponding to the lock code according to the lock code. The backend server compares the unlocking times in the lock status code to determine whether the unlocking times are correct. If correct, the unlocking instruction is sent to the unlocker. The lock status code and sub-code compared by the backend server are respectively the lock status code and sub-code obtained by the second communication module from the first communication module and forwarded to the backend server, and the lock status code and sub-code obtained by the seal lock manager from the first communication module and forwarded to the backend server before the seal lock is unlocked.

[0059] The second communication module in the unlocking device housing receives the unlocking instruction and sends the unlocking instruction to the second control chip. After receiving the unlocking instruction, the second control chip controls the second motor of the pushing component to drive the unlocking push rod to push the unlocking push block, so that the lock pin is separated from the adjustable engaging component. If the backend server verifies that the unlocking times are incorrect, it prompts that the unlocking is abnormal.

[0060] It can be imagined that the unlocker is also provided with a third communication module (not shown in the figure), and the third communication module establishes a communication connection with the background server through the mobile terminal. The unlocker sends its lock code to the mobile terminal through the third communication module, and the mobile terminal sends the received lock code to the background server. The background server forwards the unlocking instruction to the third communication module of the unlocker through the mobile terminal, and the third communication module sends the received unlocking instruction to the second control chip.

[0061] Furthermore, a first Bluetooth module is disposed in the lock shell, the first Bluetooth module is fixedly connected to the lock shell, and the first Bluetooth module is electrically connected to the first circuit board; a second Bluetooth module is also disposed in the seal lock manager.

[0062] Specifically, the lock status code also includes an address code. Among the two Bluetooth modules, the first Bluetooth module is used to transmit a Bluetooth broadcast of a fixed address code in real time within a predetermined range (for example, the predetermined range is 0.3 meters), so that all seal lock managers or unlockers within the predetermined range can obtain the address code. The second Bluetooth module is used to scan the status information of all seal locks within the predetermined range in real time.

[0063] Of course, in another embodiment, the sealing lock manager may also include a third Bluetooth module; the functions of the above two Bluetooth modules can also be achieved through three Bluetooth modules; that is, the first Bluetooth module is used to send a Bluetooth broadcast of a fixed address code within a predetermined range in real time; the second Bluetooth module is used to scan the status information of the sealing lock within the predetermined range in real time, and when the second Bluetooth module scans that the status of the sealing lock is unlocked, the second Bluetooth module initiates a connection to the sealing lock and changes the status of the sealing lock to a to-be-locked state; the third Bluetooth module is used to scan the sealing lock in the locked state, and send the lock code of the sealing lock, the lock and unlocking status code and address code and other information to the communication modules such as WiFi or GPRS, and then report the lock code of the sealing lock, the lock and unlocking status code and address code and other information to the background server through the communication modules such as WiFi or GPRS.

[0064] In addition, in one embodiment, a fourth Bluetooth module may be provided in the unlocker for establishing a communication connection with the mobile terminal, receiving an unlocking password from the mobile terminal, or sending an unlocking status code received to the mobile terminal or a backend server.

[0065] Of course, in another embodiment, a display screen (not shown) may also be provided on the surface of the lock housing, and the display screen is electrically connected to the first circuit board; the locking status of the seal lock and the connection status with the server side may be displayed in real time through the display screen; the display screen and its connection method are both prior arts and will not be elaborated here.

[0066] Furthermore, in another embodiment, a display screen (not shown) may be provided on the surface of the unlocking device housing, and the display screen is electrically connected to the second circuit board; the locking status of the seal lock and the connection status with the server side may be displayed in real time through the display screen; the display screen and its connection method are both existing technologies and will not be elaborated here.

[0067] The working principle of the control system of this embodiment:

[0068] On the one hand, firstly, the object to be sealed is placed in the lock housing, and the space between the adjustable engaging part provided in the lock housing and the load-bearing part is adjusted to achieve effective clamping of objects of different volumes placed on the load-bearing part. For example, when an object to be sealed is placed on the load-bearing part, and the object is small in size (such as a bag, etc.), the length of the engaging part extending outward is lengthened so that it clamps the object on the load-bearing part. At the same time, the load-bearing part is pressed against the first travel switch due to the weight of the object. The first circuit board receives the closing signal of the first travel switch and determines that there is an object to be sealed on the load-bearing part at this time; then, the first motor drives the first gear set to rotate, thereby driving the screw to move forward. The fixed block connected to the screw moves forward under the action of the driving force and squeezes the spring connected to the lock pin. The lock pin has a tendency to move forward under the action of the spring force. At this time, the locking button is pressed, and the spring tension squeezed on the lock pin engaged with the locking button is released. Under the thrust of the spring, the lock pin and the adjustable engaging part are engaged. The parts are engaged with each other, thereby realizing the locking of the sealing lock; it should be noted that during the movement of the locking pin driven by the spring, the unlocking push block connected to the locking pin is pushed by the locking pin to leave the second stroke switch (when the lock is not locked, the unlocking push block is close to the second stroke switch to close it), and the first circuit board connected to the second stroke switch receives the disconnection signal of the second stroke switch. At the same time, the disconnection signal when the screw in the driving component leaves the third stroke switch is also transmitted to the first circuit board, so as to judge that the sealing lock is in a locked state at this time; of course, the above only takes the example of the smaller volume of the items to be sealed. Similarly, when the volume of the items to be sealed is larger, the position of the adjustable engaging parts should be adjusted first, and then the locking should be performed to achieve the effect of clamping larger volume items.

[0069] It is worth mentioning that the present invention provides two embodiments of the above-mentioned adjustable locking component; the first embodiment provides: a cable tie, by arranging a plurality of locking teeth on the cable tie, and adjusting the position of the cable tie so that the locking pin is engaged with the locking teeth at different positions on the cable tie, so as to achieve the clamping of objects to be sealed of different volumes; the second embodiment provides: a steel rope, a ratchet and a driven wheel, the locking teeth on the inner edge of the ratchet are engaged with the locking pin, the steel rope on the outer edge of the ratchet is used to adjust the clamping space on the bearing component, the outer edge of the ratchet and the driven wheel are used to guide and assist the movement of the steel rope, and at the same time the two The clamping of the wheel also prevents the steel rope from retracting. In addition, when the lock is in the unlocked state, the first motor drives the first gear set to rotate and drives the screw to move backward. At the same time, the fixed block also moves backward. The spring is no longer squeezed by the fixed block, and the tension at one end connected to the fixed block is released, pulling the locking pin backward to separate it from the adjustable locking component. Therefore, the seal lock can be locked and unlocked by itself without an external unlocking device. Of course, the unlocking device can also be used to unlock the lock. Whether to set the unlocking device can be determined according to actual use.

[0070] On the other hand, the second motor in the unlocking device drives the second gear set to rotate, thereby driving the unlocking push rod to move forward. The front end of the unlocking push rod passes through the emergency unlocking hole, pushes the unlocking push block, and then the locking component in contact with the unlocking push block is separated from the adjustable engaging component, thereby automatically unlocking; further, an unlocking hole is provided on the unlocking device housing, and an emergency push rod is provided at the front end of the unlocking push rod, and the emergency push rod is exposed from the unlocking hole; when the second motor cannot drive the unlocking push rod to move or the unlocking device cannot automatically unlock due to power exhaustion, the seal lock can be unlocked by manually pushing the emergency push rod, specifically, the emergency push rod pushes the front end of the unlocking push rod to move, and the unlocking push block is pushed by the front end of the unlocking push rod, and then the unlocking push block pushes the lock pin to separate from the adjustable engaging component, thereby unlocking.

[0071] On the other hand, thanks to the first circuit board connected to the second travel switch and the third travel switch, the unlocking status information and the unlocking times of the current seal lock are obtained, and the unlocking status information and the unlocking times are saved in the first communication module, or saved in the storage module connected to the communication module. The second communication module connected to the first communication module in the unlocking device housing obtains the unlocking status information and the unlocking times from the storage module, and sends them directly to the background server, or forwards them to the background server through the mobile terminal.

[0072] The unlocking code information includes: lock number, unlocking status code (unlocking code corresponding to unlocking status and locking code corresponding to locking status), address code and sub-code, wherein each seal lock has a fixed lock number, which is a unique identification number set when the seal lock leaves the factory, and the status code changes with whether the seal lock is in unlocking status or locking status, that is, whether the second stroke switch is closed (closed for unlocking, open for locking), and whether the current state of the seal lock is locked or unlocked. If it is locked, the status code corresponds to the locked status code, and if it is unlocked, the status code corresponds to the unlocked status code. The address code is the physical address of the seal lock, and the sub-code is the number of times the seal lock is unlocked, which is recorded as the number of unlocking times according to the number of times the second stroke switch and the unlocking push block are closed, thereby obtaining the sub-code.

[0073] The seal lock manager that establishes a connection with the first communication module or Bluetooth module on the first circuit board is also used to receive unlocking code information sent by the Bluetooth module or communication module set on the first circuit board, and send the unlocking code information to the background server.

[0074] The backend server checks the serial number received from the seal lock manager with the serial number sent by the second communication module of the unlocker to determine whether the seal lock has been opened. If they are different, it indicates that the unlocking is abnormal.

[0075] Please refer to FIG. 9. In a specific embodiment, the control system includes: a seal lock 10, an unlocker 20 for opening the seal lock 10, a seal lock manager 50 for obtaining the unlocking status code of the seal lock and sending the unlocking status code to the backend server 40, and a seal lock manager 50 for receiving the lock code, unlocking status code or locking status code, and time code sent by the unlocker, and sending the lock code, unlocking status code or locking status code, and time code to the mobile terminal 30 of the backend server 40. Both the mobile terminal 30 and the backend server 40 can be used to view the status information of the seal lock, and obtain the current unlocking status or locking status, as well as the number of unlocking times and other information.

[0076] Embodiment 2:

[0077] Based on the above control system, the present invention further discloses a seal lock control method, which includes:

[0078] When the seal lock is in an unlocked state, the position of the adjustable engaging component in the seal lock is adjusted, the driving component is used to push the fixed block to compress the spring, and the locking button is pressed to engage the lock pin with the adjustable engaging component to lock the seal lock;

[0079] When the seal lock is in a locked state, the push assembly is used to push the unlocking push block or the power assembly is used to pull the fixed block to separate the lock pin from the adjustable engaging component to unlock the seal lock.

[0080] When the driving assembly cannot drive the screw to move or the unlocking device is unable to automatically unlock due to exhaustion of power, the unlocking push block can be pushed through the emergency unlocking hole, and then the unlocking push block pushes the locking pin to separate from the adjustable locking component, thereby unlocking the lock.

[0081] It should be noted that the sealing lock in the present invention can be locked or unlocked by the power provided by the power component. It should be understood that when the sealing lock does not include a power component, it can also be manually locked by the locking button in the present invention (the spring force is pre-tightened when it is not locked, and the spring force is released after pressing the locking button, so that the locking pin is engaged with the adjustable locking component to lock it), and unlocking can be achieved by the unlocking device in the present invention or by an external manual unlocking tool. Therefore, a sealing lock that does not include a power component should also be within the scope of protection required by the present invention.

[0082] In summary, the present invention achieves clamping of objects of different volumes on the bearing component by arranging an adjustable engaging component in the sealing lock housing and adjusting the engaging position of the adjustable engaging component and the locking component. The electronic sealing lock in this embodiment can not only be unlocked manually, but also can be unlocked by a power component arranged in the sealing lock body, and can also be unlocked by an unlocker outside the lock body. Furthermore, in the case where the power component and / or the unlocker are in an abnormal state and cannot be unlocked, manual emergency unlocking can be achieved through the emergency unlocking hole arranged on the lock housing. At the same time, thanks to the second travel switch and the third travel switch connected to the first circuit board, the unlocking status information and the number of unlocking times will be accurately recorded in the case of automatic or manual unlocking. The electronic sealing lock provided by the present invention has a simple structure and is easy to operate, which provides convenience for users when using it.

[0083] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the claims.

Claims

1. A control system for an electronic seal lock, It is characterized in that Including seal lock; The seal lock comprises: a lock housing, an emergency unlocking hole arranged on the lock housing, a locking component arranged in the lock housing, a bearing component, a first circuit board, an adjustable engaging component for engaging with the locking component to lock the seal lock, an unlocking push block for pushing the locking component to separate from the adjustable engaging component to unlock the seal lock, a first travel switch electrically connected to the first circuit board for limiting the bearing component, and a second travel switch electrically connected to the first circuit board for limiting the unlocking push block; The bearing component includes: two bases symmetrically arranged in the lock shell, two springs arranged on the two bases, and a bearing platform connected to the springs and arranged outside the lock shell. The bearing platform is used to place clamped objects. When there is a heavy object on the bearing platform, the bearing platform will move down and touch the first travel switch to close it. The first circuit board electrically connected to the first travel switch determines whether there is an object placed on the bearing platform through the closed state of the first travel switch.

2. The control system of the electronic seal lock according to claim 1, It is characterized in that It also includes a power component for pushing or pulling the locking component to engage or separate with the adjustable engaging component so that the seal lock is locked or unlocked; the power component includes: a first motor, a first gear set, a screw and a third stroke switch for controlling the screw stroke; the first gear set is fixedly connected to the first motor; one end of the screw is fixedly connected to the first gear set, and the other end is connected to the locking component.

3. The control system of the electronic seal lock according to any one of claims 1 to 2, It is characterized in that It also includes an unlocking device arranged on one side of the sealing lock for opening the sealing lock; the unlocking device includes: an unlocking device housing, an unlocking hole arranged on the unlocking device housing, a pushing component arranged in the unlocking device housing for pushing the unlocking push block, and a second circuit board electrically connected to the pushing component.

4. The control system of the electronic seal lock according to claim 2, It is characterized in that The locking assembly includes a fixed block, a spring, a locking pin for locking the adjustable locking component, and a locking button elastically arranged in the lock housing for locking the locking pin; one end of the fixed block is connected to the other end of the screw rod, and the other end is connected to one end of the spring; the other end of the spring is connected to one end of the locking pin.

5. The control system of the electronic seal lock according to claim 3, It is characterized in that The first circuit board is also provided with a first control chip and a first communication module connected to the first control chip and / or a storage chip connected to the first communication module; the lock housing is provided with a wireless signal sensing board for identifying the seal lock code; The first control chip is electrically connected to the second travel switch and the third travel switch, and is used to obtain the unlocking status information and unlocking times of the sealing lock, and save the unlocking status information and unlocking times to the first communication module, or save the unlocking status information and unlocking times to the storage chip.

6. The control system of the electronic seal lock according to claim 4, It is characterized in that The adjustable engaging component comprises a cable tie, one end of which is fixedly arranged in the lock housing, and the other end of which extends out of the lock housing. The cable tie is provided with a plurality of engaging teeth engaged with the lock pin.

7. The control system of the electronic seal lock according to claim 4, It is characterized in that The adjustable engaging component includes a ratchet, a steel rope and a driven wheel; the inner edge of the ratchet is provided with a plurality of engaging teeth engaged with the locking pin, and the outer edge is an arc surface or a tooth surface; one end of the steel rope is fixedly arranged in the lock housing, and the other end is arranged between the outer edge of the ratchet and the driven wheel and extends out of the lock housing.

8. The control system of the electronic seal lock according to claim 5, It is characterized in that The pushing assembly includes: a second motor, a second gear set and an unlocking push rod; the second gear set is fixedly connected to the second motor; the unlocking push rod is composed of a separate front end and a rear end, and the front end and the unlocking push block are respectively arranged on both sides of the emergency unlocking hole. When unlocking, the front end is pushed through the emergency unlocking hole to push the unlocking push block to move; the rear end is connected to the second gear set; the second motor is connected to the second circuit board.

9. The control system of the electronic seal lock according to claim 8, It is characterized in that An emergency push rod is arranged on the front end, one end of the emergency push rod is connected to the front end, and the other end extends out of the unlocking hole; a second control chip and a second communication module are arranged on the second circuit board, and the second communication module communicates with the first communication module and the background server respectively.

10. A control method for an electronic seal lock, based on the control system of the electronic seal lock according to any one of claims 4 to 9, It is characterized in that include: When the seal lock is in an unlocked state, the position of the adjustable engaging component in the seal lock is adjusted, the driving component is used to push the fixed block to compress the spring, and the locking button is pressed to engage the lock pin with the adjustable engaging component to lock the seal lock; When the seal lock is in a locked state, the push assembly is used to push the unlocking push block or the power assembly is used to pull the fixed block to separate the lock pin from the adjustable engaging component to unlock the seal lock.

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