CN108846459B - Electronic seal control system and method - Google Patents
Electronic seal control system and method Download PDFInfo
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- CN108846459B CN108846459B CN201810678583.1A CN201810678583A CN108846459B CN 108846459 B CN108846459 B CN 108846459B CN 201810678583 A CN201810678583 A CN 201810678583A CN 108846459 B CN108846459 B CN 108846459B
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- electronic seal
- lock
- state code
- manager
- seal lock
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00571—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by interacting with a central unit
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention discloses an electronic seal control system and a method, wherein the system comprises: the electronic seal lock is used for sealing and unsealing the article; the electronic seal manager is used for scanning the electronic seal lock and reading the Bluetooth broadcast with the lock number, the lock state code and the locking times sent by the electronic seal lock, and the electronic seal manager is used for connecting the electronic seal lock with the electronic seal lock when the electronic seal lock is in the unlocking state code; the background server is in two-way communication with the electronic seal manager, and is used for receiving the information of the lock number, the lock state code and the locking times of the electronic seal lock sent by the electronic seal manager and updating the seal information of the electronic seal lock and the electronic seal manager; according to the invention, the electronic seal lock is monitored in real time through the electronic seal manager, the leaving and entering of the electronic seal lock are judged in time, and relevant information is read and sent to the background server, so that a plurality of electronic seal locks in a specific range are conveniently controlled and managed, and the convenience of operation is improved.
Description
Technical Field
The invention relates to the technical field of electronic seal, in particular to an electronic seal control system and method.
Background
The electronic seal is a disposable plastic shell type seal which can be self-locked and prevented from being opened and is provided with a bar code, a two-dimensional bar code and an RFID chip, each seal is provided with a unique code and comprises the bar code or the two-dimensional bar code for being identified by the intelligent handheld terminal, the RFID chip and a code for being identified by human eyes; the electronic seal adopts a non-contact automatic identification technology, can automatically identify a target, acquire related data, and can intelligently read and write and perform communication conversion, thereby realizing computer software management; the electronic seal label digital ID has global uniqueness, and the sealing and unsealing management process, data downloading and remote transmission are completed through the RFID reader.
In the prior art, when the quantity of electronic seal locks is many, a plurality of electronic seal locks in a certain range cannot be effectively managed and controlled, the on-off state of the electronic seal locks cannot be acquired in real time, and management and control of the electronic seal locks are not facilitated.
Accordingly, there is a need for improvements and developments in the art.
Disclosure of Invention
The invention aims to solve the technical problem that the invention provides an electronic seal control system and method aiming at the defects of the prior art, and aims to monitor electronic seal locks in a specific area in real time through an electronic seal manager, judge the leaving and entering of the electronic seal locks in the specific area in time, read related information and send the related information to a background server, conveniently control and manage a plurality of electronic seal locks in the specific area, and improve the convenience of operation.
The technical scheme adopted by the invention for solving the technical problem is as follows:
an electronic seal control system, wherein the electronic seal control system comprises:
the electronic seal lock is used for sealing and unsealing the article;
the electronic seal manager is used for scanning the electronic seal lock and reading the Bluetooth broadcast with the lock number, the lock state code and the locking times sent by the electronic seal lock, and the electronic seal manager is used for connecting the electronic seal lock with the electronic seal lock when the electronic seal lock is in the unlocking state code;
and the background server is in two-way communication with the electronic seal manager, and is used for receiving the information of the lock number, the lock state code and the locking times of the electronic seal lock, which is sent by the electronic seal manager, and updating the seal information of the electronic seal lock and the electronic seal manager.
The electronic seal control system is characterized in that a key used for sealing and unsealing is arranged on the electronic seal lock, and the key is used for unlocking and locking through a preset rule.
The electronic seal control system, wherein, the electronic seal control system still includes:
and the mobile terminal is wirelessly connected with the electronic seal lock and the background server respectively, and is used for controlling the electronic seal lock to be unlocked and locked by sending a password.
The electronic seal control system is characterized in that the electronic seal manager is in communication connection with the background server through WIFI, GPRS or a wired network.
An electronic seal control method based on the electronic seal control system, wherein the electronic seal control method comprises the following steps:
the electronic seal lock management system comprises a seal manager, a seal manager and a control system, wherein the seal manager scans an electronic seal lock in a preset range in real time, acquires information of the electronic seal lock with a fixed lock number through Bluetooth broadcasting or RFID, and checks the recorded number of the electronic seal lock in the preset range;
when the recorded lock number of the electronic seal lock is found to be not scanned through comparison, the electronic seal lock which is not scanned is reported to the background server, and the electronic seal lock which is not scanned is judged to leave the preset range;
and when the new unrecorded lock number of the electronic seal lock is found through comparison, reporting the scanned new electronic seal lock to the background server, and judging that the scanned new electronic seal lock enters a preset range.
The electronic seal control method comprises the following steps that before the seal manager scans the electronic seal lock within a preset range in real time:
the seal manager and the background server record lock numbers of the electronic seal locks placed in a preset range in advance.
In the electronic seal control method, after the seal manager scans the electronic seal lock, the lock state code of the electronic seal lock is obtained; the lock status code comprises a locking status code, an unlocking status code and a to-be-locked status code.
The electronic seal control method, wherein the electronic seal control method further comprises:
after the electronic seal lock is unlocked, the Bluetooth broadcast of the electronic seal lock is changed from the locked state code to the unlocked state code; the lock state code of the Bluetooth broadcast of the electronic seal lock is instantly and automatically changed according to the unlocking and locking changes of the electronic seal lock;
when the Bluetooth broadcast of the electronic seal lock is in the unlocking state code, the electronic seal lock cannot be locked again;
when the electronic seal manager detects that the Bluetooth broadcast of the electronic seal lock is in the unlocking state code, the electronic seal manager is connected with the electronic seal lock, and the unlocking state code of the Bluetooth broadcast of the electronic seal lock is changed into the to-be-locked state code;
or when the electronic seal lock is in the unlocking state code, the key is pressed in a preset rule mode to change the locking state code so as to achieve the purpose of locking;
when the Bluetooth broadcast of the electronic seal lock is in the to-be-locked state code, the electronic seal lock can be locked.
The electronic seal control method, wherein the electronic seal control method further comprises:
the seal manager scans the lock number of the electronic seal lock placed in the preset range, and establishes connection with the electronic seal lock when the lock state code of the scanned Bluetooth broadcast of the electronic seal lock is judged to be the unlocking state code according to the lock state code of the electronic seal lock, and the lock state code of the Bluetooth broadcast of the electronic seal lock is changed into the to-be-locked state code.
The electronic seal control method, wherein the electronic seal control method further comprises:
and when the seal manager scans the lock state code broadcasted by the Bluetooth of the electronic seal lock, the seal manager informs the background server of the information of the lock state code, and the background server updates the data information of the electronic seal lock.
The invention discloses an electronic seal control system and a method, wherein the system comprises: the electronic seal lock is used for sealing and unsealing the article; the electronic seal manager is used for scanning the electronic seal lock and reading the Bluetooth broadcast with the lock number, the lock state code and the locking times sent by the electronic seal lock, and the electronic seal manager is used for being connected with the electronic seal lock when the electronic seal lock is in the unlocking state code; the background server is connected with the electronic seal manager and used for receiving the information, which is sent by the electronic seal manager and provided with the lock number, the lock state code and the locking times of the electronic seal lock, and updating the seal information of the electronic seal lock and the electronic seal manager; according to the invention, the electronic seal lock in the specific area can be monitored in real time through the electronic seal manager, the leaving and entering of the electronic seal lock in the specific area can be judged in time, relevant information is read and sent to the background server, a plurality of electronic seal locks in the specific area can be controlled and managed conveniently, and the convenience of operation is improved.
Drawings
FIG. 1 is a schematic structural diagram of a preferred embodiment of an electronic seal control system of the present invention;
fig. 2 is a flowchart illustrating an electronic seal control method according to a preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, an electronic seal control system according to a preferred embodiment of the present invention includes: an electronic seal lock 10 for sealing and unsealing an article (e.g., a plurality of electronic seal locks exist simultaneously within a predetermined range); the electronic seal manager 20 is used for scanning the electronic seal lock 10 and reading the Bluetooth broadcast with the lock number, the lock state code and the locking times sent by the electronic seal lock 10, and the electronic seal manager 20 is used for connecting the electronic seal lock 10 when the electronic seal lock is in the unlocking state code; and the background server 30 is in two-way communication with the electronic seal manager 20, and is used for receiving the information with the lock number, the lock state code and the locking frequency of the electronic seal lock 10 sent by the electronic seal manager 20 and updating the seal information of the electronic seal lock 10 and the electronic seal manager 20.
The electronic seal lock 10 includes a bluetooth, a motor, a battery, a switch, a circuit board, an RFID tag, and the like, and a specific structure of the electronic seal lock is not described here.
Further, the electronic seal lock 10 is provided with a key for sealing and unsealing, the key is used for unlocking and locking through a preset rule, for example, the electronic seal lock 10 is provided with one key, and the unlocking rule is that two keys are pressed first and then pressed after a time longer than 2 seconds.
The electronic seal control system further comprises: the electronic seal lock is characterized by comprising a mobile terminal 40 (for example, a smart phone which directly controls sealing and unsealing of the electronic seal lock 10) which is in wireless connection (for example, wireless connection modes such as bluetooth, WIFI and GPRS) with the electronic seal lock 10 and the background server 30, wherein the mobile terminal 40 is used for controlling the electronic seal lock to be unlocked and locked by sending a password.
Further, the electronic seal manager 20 is in communication connection with the background server 30 through WIFI, GPRS or a wired network, so that the electronic seal manager 20 and the background server 30 are in communication.
Based on the electronic seal control system, the invention also discloses an electronic seal control method, wherein as shown in fig. 2, the electronic seal control method comprises the following steps:
step S10, the facing slip manager scans the electronic facing slip lock within a preset range (for example, 20 meters) in real time, acquires the information of the electronic facing slip lock with a fixed lock number through Bluetooth broadcasting or RFID (both methods), and checks the recorded number of the electronic facing slip lock within the preset range;
step S20, when the recorded lock number of the electronic seal lock is found to be not scanned through comparison, the electronic seal lock which is not scanned is reported to the background server, and the electronic seal lock which is not scanned is judged to leave the preset range;
and step S30, when the new unrecorded lock number of the electronic seal lock is found through comparison, reporting the scanned new electronic seal lock to the background server, and judging that the scanned new electronic seal lock enters a preset range.
Specifically, the method further includes, before the step S10: the seal manager and the background server record lock numbers of the electronic seal locks placed in a preset range in advance.
After the seal manager scans the electronic seal lock, a lock state code of the electronic seal lock is obtained; the lock status code includes a lock status code, an unlock status code, and a to-be-locked status code, and for example, 1 indicates the lock status code, 2 indicates the unlock status code, and 3 indicates the to-be-locked status code.
The seal manager can continuously scan the electronic seal locks in the preset range, check the recorded electronic seal lock numbers in the range, and report to the server when some recorded electronic seal locks cannot be scanned, so that the electronic seal locks leave; when finding that a new unrecorded electronic seal lock number exists, reporting to the server, and entering a new electronic seal lock.
Furthermore, the electronic seal lock can be unlocked in the modes of Bluetooth, passwords and the like, and after the electronic seal lock is unlocked, the Bluetooth broadcast of the electronic seal lock is changed from the locking state code to the unlocking state code (the locking state code of the electronic seal lock is changed by the electronic seal lock); the lock state code of the Bluetooth broadcast of the electronic seal lock is instantly and automatically changed according to the unlocking and locking changes of the electronic seal lock; when the Bluetooth broadcast of the electronic seal lock is in the unlocking state code, the electronic seal lock cannot be locked again; when the electronic seal manager detects that the Bluetooth broadcast of the electronic seal lock is in the unlocking state code, the electronic seal manager is connected with the electronic seal lock, the unlocking state code of the Bluetooth broadcast of the electronic seal lock is changed into the to-be-locked state code, or when the electronic seal lock is in the unlocking state code, the lock state code is changed by pressing a key in a preset rule mode to achieve the purpose of locking; when the Bluetooth broadcast of the electronic seal lock is in the to-be-locked state code, the electronic seal lock can be locked.
After scanning, only when the electronic seal lock is in an unlocking state code, the electronic seal manager is connected with the electronic seal lock, and the working efficiency of the seal manager can be improved through targeted connection.
The seal manager scans the lock number of the electronic seal lock placed in the preset range, and establishes connection with the electronic seal lock when the lock state code of the scanned Bluetooth broadcast of the electronic seal lock is judged to be the unlocking state code according to the lock state code of the electronic seal lock, and the lock state code of the Bluetooth broadcast of the electronic seal lock is changed into the to-be-locked state code.
That is, once the electronic seal lock is unlocked, the corresponding lock state code in the bluetooth broadcast name is changed into the unlocking state code, and under the unlocking state code, the electronic seal lock cannot be locked again; once the electronic seal lock under the unlocking state code enters the effective range of a certain electronic seal manager and the electronic seal manager detects that the electronic seal lock is the unlocking state code, the locking state code of the electronic seal lock is changed into a state code to be locked, and the electronic seal lock can be locked only when the state code is the state code to be locked.
And when the seal manager scans the lock state code broadcasted by the Bluetooth of the electronic seal lock, the seal manager informs the background server of the information of the lock state code, and the background server updates the data information of the electronic seal lock.
The electronic seal manager is preferentially used for setting a transport vehicle or a warehouse (also suitable for other occasions), in practical application, the electronic seal manager is usually arranged in the transport vehicle and the warehouse, certainly, the electronic seal manager can be arranged at any place capable of being set in the transport vehicle and the warehouse, the electronic seal manager can be directly carried by direct operators (or logistics personnel), the electronic seal manager can actively search electronic seal locks in specific areas, relevant information is read and sent to a background server, and therefore whether the electronic seal lock body is on the transport vehicle or in the warehouse can be monitored in real time, and the electronic seal lock is sealed and unsealed at any time and any place.
According to the invention, the background server receives the information sent by the electronic seal manager, so that the real-time state of the goods can be monitored in real time, the safety of goods transportation is improved, the safety of the electronic seal is also improved, and the electronic seal lock is effectively prevented from being maliciously opened.
The invention provides an electronic seal control system and a method, wherein the system comprises: the electronic seal lock is used for sealing and unsealing the article; the electronic seal manager is used for scanning the electronic seal lock and reading the Bluetooth broadcast with the lock number, the lock state code and the locking times sent by the electronic seal lock, and the electronic seal manager is used for connecting the electronic seal lock with the electronic seal lock when the electronic seal lock is in the unlocking state code; the background server is connected with the electronic seal manager and used for receiving the information, which is sent by the electronic seal manager and provided with the lock number, the lock state code and the locking times of the electronic seal lock, and updating the seal information of the electronic seal lock and the electronic seal manager; according to the invention, the electronic seal lock in the specific area can be monitored in real time through the electronic seal manager, the leaving and entering of the electronic seal lock in the specific area can be judged in time, relevant information is read and sent to the background server, a plurality of electronic seal locks in the specific area can be controlled and managed conveniently, and the convenience of operation is improved.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (7)
1. An electronic seal control system, comprising:
the electronic seal lock is used for sealing and unsealing the article;
the electronic seal manager is used for scanning the electronic seal lock and reading the Bluetooth broadcast with the lock number, the lock state code and the locking times sent by the electronic seal lock, and the electronic seal manager is used for connecting the electronic seal lock with the electronic seal lock when the electronic seal lock is in the unlocking state code;
the background server is in two-way communication with the electronic seal manager, and is used for receiving the information of the lock number, the lock state code and the locking times of the electronic seal lock sent by the electronic seal manager and updating the seal information of the electronic seal lock and the electronic seal manager;
after the electronic seal manager scans the electronic seal lock, acquiring a lock state code of the electronic seal lock; the lock status code comprises a locking status code, an unlocking status code and a status code to be locked;
after the electronic seal lock is unlocked, the Bluetooth broadcast of the electronic seal lock is changed from the locked state code to the unlocked state code;
the lock state code of the Bluetooth broadcast of the electronic seal lock is instantly and automatically changed according to the unlocking and locking changes of the electronic seal lock;
when the Bluetooth broadcast of the electronic seal lock is in the unlocking state code, the electronic seal lock cannot be locked again;
when the electronic seal manager detects that the Bluetooth broadcast of the electronic seal lock is in the unlocking state code, the electronic seal manager is connected with the electronic seal lock, and the unlocking state code of the Bluetooth broadcast of the electronic seal lock is changed into the to-be-locked state code;
or when the electronic seal lock is in the unlocking state code, the key is pressed in a preset rule mode to change the locking state code so as to achieve the purpose of locking;
when the Bluetooth broadcast of the electronic seal lock is in a to-be-locked state code, the electronic seal lock can be locked;
after scanning, the electronic seal manager is connected with the electronic seal lock only when the electronic seal lock is in an unlocking state code;
when the electronic seal lock enters a preset range of the electronic seal manager and the electronic seal manager detects that the electronic seal lock is an unlocking state code, changing the lock state code of the electronic seal lock into a to-be-locked state code;
the electronic seal control system further includes:
and the mobile terminal is wirelessly connected with the electronic seal lock and the background server respectively, and is used for controlling the electronic seal lock to be unlocked and locked by sending a password.
2. The electronic seal control system according to claim 1, wherein the electronic seal lock is provided with a key for sealing and unsealing, and the key is used for unlocking and locking according to a preset rule.
3. The electronic seal control system of claim 1, wherein the electronic seal manager is communicatively coupled to the backend server via WIFI, GPRS, or a wired network.
4. An electronic seal control method based on the electronic seal control system according to any one of claims 1 to 3, characterized in that the electronic seal control method comprises:
the electronic seal manager scans the electronic seal lock in a preset range in real time, acquires information of the electronic seal lock with a fixed lock number through Bluetooth broadcasting or RFID, and checks the recorded number of the electronic seal lock in the preset range;
when the recorded lock number of the electronic seal lock is found to be not scanned through comparison, the electronic seal lock which is not scanned is reported to the background server, and the electronic seal lock which is not scanned is judged to leave the preset range;
when the lock number of the new electronic seal lock which is not recorded is found through comparison, reporting the scanned new electronic seal lock to the background server, and judging that the scanned new electronic seal lock enters a preset range;
after the electronic seal manager scans the electronic seal lock, acquiring a lock state code of the electronic seal lock; the lock state code comprises a locking state code, an unlocking state code and a to-be-locked state code;
after the electronic seal lock is unlocked, the Bluetooth broadcast of the electronic seal lock is changed from the locked state code to the unlocked state code; the lock state code of the Bluetooth broadcast of the electronic seal lock is instantly and automatically changed according to the unlocking and locking changes of the electronic seal lock;
when the Bluetooth broadcast of the electronic seal lock is in the unlocking state code, the electronic seal lock cannot be locked again;
when the electronic seal manager detects that the Bluetooth broadcast of the electronic seal lock is in the unlocking state code, the electronic seal manager is connected with the electronic seal lock, and the unlocking state code of the Bluetooth broadcast of the electronic seal lock is changed into the to-be-locked state code;
or when the electronic seal lock is in the unlocking state code, the key is pressed in a preset rule mode to change the locking state code so as to achieve the purpose of locking;
when the Bluetooth broadcast of the electronic seal lock is in a to-be-locked state code, the electronic seal lock can be locked;
after scanning, the electronic seal manager is connected with the electronic seal lock only when the electronic seal lock is in an unlocking state code;
and when the electronic seal lock enters the preset range of the electronic seal manager and the electronic seal manager detects that the electronic seal lock is the unlocking state code, changing the lock state code of the electronic seal lock into the to-be-locked state code.
5. The electronic seal control method according to claim 4, wherein before the electronic seal manager scans the electronic seal lock within the predetermined range in real time, the method further comprises:
the electronic seal manager and the background server record lock numbers of the electronic seal locks placed in a preset range in advance.
6. The electronic seal control method according to claim 4, further comprising:
the electronic seal manager scans the lock number of the electronic seal lock placed in the preset range, and establishes connection with the electronic seal lock when the lock state code of the scanned Bluetooth broadcast of the electronic seal lock is judged to be the unlocking state code according to the lock state code of the electronic seal lock, and the lock state code of the Bluetooth broadcast of the electronic seal lock is changed into the to-be-locked state code.
7. The electronic seal control method according to claim 4, further comprising:
and when the electronic seal manager scans the lock state code broadcasted by the Bluetooth of the electronic seal lock, the electronic seal manager informs the background server of the information of the lock state code, and the background server updates the data information of the electronic seal lock.
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CN110094110B (en) * | 2019-05-24 | 2020-11-17 | 尹文秋 | Facing slip lock management device and method |
CN110310070A (en) * | 2019-07-09 | 2019-10-08 | 深圳市天佑卫星应用技术有限公司 | Container management method and system |
CN111027653B (en) * | 2019-12-05 | 2023-12-19 | 上海斑马来拉物流科技有限公司 | Electronic seal control system, method, computer storage medium and electronic equipment |
CN111369776A (en) * | 2020-04-10 | 2020-07-03 | 上海圣享科技股份有限公司 | Bluetooth control and data transmission encrypted sealing device |
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Effective date of registration: 20220915 Address after: 11th Floor, Unit 1, Building 2, No. 39, Gaoxin 6th Road, Binhai Science and Technology Park, Binhai High-tech Zone, Binhai New District, Tianjin 300450 Patentee after: Tianjin Leke Intelligent Technology Co.,Ltd. Address before: 518000 Huaqiang Garden B-15C, Futian District, Shenzhen City, Guangdong Province Patentee before: Wang Qun |