CN202689700U - Remote intelligent key of cabinet - Google Patents
Remote intelligent key of cabinet Download PDFInfo
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- CN202689700U CN202689700U CN 201220253169 CN201220253169U CN202689700U CN 202689700 U CN202689700 U CN 202689700U CN 201220253169 CN201220253169 CN 201220253169 CN 201220253169 U CN201220253169 U CN 201220253169U CN 202689700 U CN202689700 U CN 202689700U
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Abstract
The utility model relates to a remote intelligent key of a cabinet and belongs to the technical field of intelligent keys. The remote intelligent key of the cabinet is characterized by comprising a microprocessor which is connected with a global system for mobile communication (GSM) information processing system, a driving actuator and a data communication and power output interface. The mechanisms which can bear torque and are matched with each other are arranged at the end of the data communication and power output interface. The intelligent key is connected with an intelligent lock or a data adaptor unit through the data communication and power output interface, and then wired data communication between the intelligent key and the intelligent lock or a background management system can be achieved. Wireless data communication between the intelligent key and the background management system can be achieved through the GSM information processing system. The remote intelligent key is matched with the intelligent lock, the data adaptor unit and the background management system to form a cabinet remote intelligentized management system which utilizes a communication network as a carrier, and controls using service conditions of a network distribution device in real time through operation supervision on the intelligent lock to perform standardized management on the device and operators.
Description
Technical field
The utility model relates to bin long-distance intelligent key, belongs to the Intelligent key technical field.
Background technology
At present the external device in the fields such as electric power, communication, traffic, storage have quantity many, distribute wide, most in outdoor operation, the characteristics that can't manage concentratedly.Lockset generally adopts traditional mechanical door lock on the equipment, and poor stability can not effectively be managed the lockset on the equipment, is mainly manifested in the following aspects:
(1), lockset still adopts common padlock and cabinet door lock, anti-outside destroy, technical opening ability, mutual opening rate height, easily generation robbery accident.
(2), lock body is ordinary metallic material, the long-play lockset easily is difficult to open because of corrosion, causes lockset to change phenomenon required expense increasing year by year occurs often.
(3), key is too much, carries and search also inconvenient in working at ordinary times; Key easily disposes, easily runs off, and possible generation is broken uncontrollable potential safety hazards such as ring.
Summary of the invention
The purpose of this utility model is to solve the weak point that the existing equipment management status exists, and a kind of bin long-distance intelligent key that can further improve and improve the work efficiency and management level in the fields such as electric power, communication, traffic, storage is provided; This Intelligent key and intelligent lock, data adapter unit, background management system cooperatively interacts and consists of bin remote intelligent management system, microelectric technique is combined with computer management system, take communication network as carrier, by the operation supervision to lockset, realize real-time control equipment behavior in service, to reach equipment, the standardization of personnel and work and intelligent management, can be according to the working region, the scope of application and service time, the switch lock authority is set flexibly, realize multiple management, can long-range application authorize temporarily, also possess by the mobile device monitoring and specify key working condition function.
For achieving the above object, the technical solution adopted in the utility model is as follows:
The utility model bin long-distance intelligent key, intelligent lock by being connected with its communication, be connected with the Intelligent key communication and the background management system that carries out the data adapter unit of data conversion and control in real time supervision take communication network as carrier, to the mode of operation of intelligent lock cooperatively interacts, consist of bin remote intelligent management system.
The technical scheme that the utility model bin long-distance intelligent key adopts is as follows:
Bin long-distance intelligent key is characterized in that comprising microprocessor, and microprocessor is connected with the GSM information processing system, drives executing agency and data communication and power output interface;
The end of described data communication and power input mouth is the mechanism of the born moment of torsion of mutual coupling, be connected to come the transmission of data by the two contacts contact that comprises power line, data wire between Intelligent key and the intelligent lock core, the Intelligent key top is embedded with the first magnetic post 2-4 by the push shaft 2-3 of executing agency control connection except being convexly set in the convex surface 2-1 of top outer peripheral face and being laid in the engaging groove 2-2 that the top end face is downward concave design with also being provided with one the key electrode contacts C-1 in the described convex surface 2-1; Described intelligent lock core top is except being depressed in the groove 3-1 of top inner peripheral surface and being laid in the lock core inner face and be engagement pellet 3-2 to upper process design with also being provided with one the lock core electrode contacts C-2, be embedded with in the described groove 3-1 with Intelligent key in the second magnetic post 3-3 of being complementary of the first magnetic post 2-4.
When the opening and closing intelligent lock, at first with the convex surface 2-1 corresponding inserted of Intelligent key in the groove of intelligent lock core, key electrode contacts C-1 contacts with lock core electrode electric shock C-2, and the engaging groove 2-2 of Intelligent key is meshed with the engagement pellet 3-2 of intelligent lock core subsequently; Two electrode contacts communication identity verifications, checking drives executing agency by rear Intelligent key, the push shaft 2-3 of executing agency triggers the first magnetic post 2-4 that promotes the Intelligent key head, the second magnetic post 3-3 of the first magnetic post 2-4 and intelligent built-in lock pin cooperatively interacts, and just can rotate Intelligent key and drive intelligent lock core and realize the unlatching of lockset or close in the situation that above-mentioned condition all satisfies.
Described Intelligent key is connected with intelligent lock or data adapter unit by data communication and power output interface, realizes the cable data communication of Intelligent key and intelligent lock or background management system; Described Intelligent key is realized the wireless data communication of Intelligent key and background management system by the GSM information processing system; Described Intelligent key is locked authorization requests and is received the authorized order that the other side sends to the background management system transmit button via the GSM information processing system, the lockset operation information that records in the data storage is sent to background management system in real time, and what the reception background management system was sent does not shut information and instruction is set.
Described Intelligent key also carries out wireless telecommunications by the GSM information processing system with the appointment mobile device and is connected, and described Intelligent key is to specifying mobile device transmit button lock authorization requests and receiving the authorized order that the other side sends.
Described Intelligent key is judged the unique identification of lockset according to the corresponding authority of being given by background management system; Drive executing agency's action by rear Intelligent key and the notice lockset can open or cut out such as Authority Verification, thereby the intelligent lock core of intelligent lock rotates, realize the unlatching of lockset or close; Do not pass through such as Authority Verification, Intelligent key notice intelligent lock is forbidden opening or closing.
The utility model bin long-distance intelligent key, cooperatively interact with intelligent lock, data adapter unit and background management system, consist of bin remote intelligent management system, realize that microelectric technique combines with computer management system, microelectric technique is combined with computer management system, take communication network as carrier, by the operation supervision to intelligent lock, thereby realize that the real-time behavior in service of controlling distribution net equipment reaches the standardized management to equipment and operating personnel; Can unlocking authority be set flexibly according to working region, the scope of application and service time, realize multiple management, can long-range application authorize temporarily, also possess by the mobile device monitoring and specify key working condition function.Lock body adopts multiple-protection simultaneously, reaches the purpose of water proof and dust proof, has greatly prolonged application life, and wherein dust-proof cap mechanism adopts spring to be used as power, and meshes to realize reliable location by the upper and lower sleeve profile of tooth, uses flexible.Between lockset in the process of open and close, by profile of tooth cooperate, magnetic field coupling, telecommunications Information Authentication three functions be in conjunction with having guaranteed that the key mutual opening rate is extremely low and being difficult to copy.
Description of drawings
Fig. 1: bin remote intelligent management system structural representation;
Fig. 2: background management system control connection block diagram;
Fig. 3: data adapter unit control connection block diagram;
Fig. 4: intelligent lock control connection block diagram;
Fig. 5: Intelligent key control connection block diagram;
Fig. 6: intelligent lock dust cover A and dust cap B structural representation;
Fig. 7: dust cap locking states structural representation;
Fig. 8: dust cap rotates an angle of 90 degrees status architecture schematic diagram;
Fig. 9: smart lock cored structure schematic diagram;
Figure 10: Intelligent key header structure schematic diagram;
Figure 11: magnet-sensitive switch control structure schematic diagram during the lockset locking states;
Figure 12: magnet-sensitive switch control structure schematic diagram during the lockset opening;
Figure 13: travel switch control structure schematic diagram during the lockset locking states;
Figure 14: travel switch control structure schematic diagram during the lockset opening.
The specific embodiment
Referring to accompanying drawing, provide the specific embodiment of the present utility model, be used for formation of the present utility model is further specified.
Bin remote intelligent management system is with reference to figure 1-14, include all-sealed structure intelligent lock, be used for opening intelligent lock and the Intelligent key that is connected with its communication, be connected and carry out the data adapter unit that data change and the background management system of controlling in real time supervision take communication network as carrier, to the mode of operation of intelligent lock with the Intelligent key communication;
Background management system comprises that installation and operation has the computer of dedicated management software, and described computer is connected with the data adapter unit communication by USB interface; Described background management system adopts the multiple management pattern, is set up via the webserver by a plurality of different one-of-a-kind systems to form, and can carry out authority setting to each one-of-a-kind system in the network, supports simultaneously the independent operating of one-of-a-kind system.
Data adapter unit comprises the microprocessor that is connected with GSM information processing system, power supply and positioning indicator, and microprocessor also is connected with cable data PORT COM and USB interface; Described data adapter unit is connected with background management system by USB interface, and described data adapter unit is undertaken the data between Intelligent key and the background management system alternately by cable data PORT COM or GSM information processing system; Data adapter unit is transmitted to Intelligent key with the switch lock authorization information of background management system, thereby makes Intelligent key have the switch lock authority; And Intelligent key is transmitted to background management system to the operation information of lockset, thereby makes background management system grasp in real time the switch running status of lockset;
Intelligent key comprises the microprocessor that is connected with power supply, display, keyboard, clock, Acoustooptic indicator and data storage, and microprocessor is connected with the GSM information processing system, drives executing agency and data communication and power output interface;
Described Intelligent key is connected with intelligent lock or data adapter unit by data communication and power output interface, realizes the cable data communication of Intelligent key and intelligent lock or background management system; Described Intelligent key is realized the wireless data communication of Intelligent key and background management system by the GSM information processing system; Described Intelligent key is locked authorization requests and is received the authorized order that the other side sends to the background management system transmit button via the GSM information processing system, the lockset operation information that records in the data storage is sent to background management system in real time, and what the reception background management system was sent does not shut information and instruction is set; Described Intelligent key also carries out wireless telecommunications by the GSM information processing system with the appointment mobile device and is connected, and described Intelligent key also can be to specifying mobile device transmit button lock authorization requests and receiving the authorized order that the other side sends; Described Intelligent key is judged the unique identification of lockset according to the corresponding authority of being given by background management system; Drive executing agency's action by rear Intelligent key and the notice lockset can open or cut out such as Authority Verification, thereby the intelligent lock core of intelligent lock rotates, realize the unlatching of lockset or close; Do not pass through such as Authority Verification, Intelligent key notice intelligent lock is forbidden opening or closing.
Intelligent lock comprises the lock body with dust and water proof apparatus and is built-in with the intelligent lock core that is electrically connected with Intelligent key; Described intelligent lock comprises microprocessor, and microprocessor is connected with the state detection mechanism of intelligent lock core, and described intelligent lock is connected with Intelligent key by data communication and power input mouth; The lock body of described intelligent lock adopts nickel plating or the high-quality copper material of chromium plating or the stainless steel material after the employing passivation with anticorrosive antirust function, simultaneously lock body is provided with the dust and water proof apparatus that can improve lockset ability to bear under adverse circumstances, described dust and water proof apparatus be included in increase on the lock bridge be used for blocking the silica gel shell type dust cover A of lock beam hole and the dust cap B that is used for blocking lock core hole.
Described dust cap B comprises that being installed on lock body bottom is used for blocking the dust cap body 1 of lock core hole and is positioned lock body by bearing pin 1-3 inner and be the 1-1 that traps of cover 1-2 and dust cap on the dust cap of frictional fit with it, described bearing pin 1-3 hang on lock body inside by spring 1-4, and described dust cap body 1 can drive the dust cap 1-1 that traps and along bearing pin 1-3 rotation and with the dust cap cover 1-2 on its top relative motion occur in lock body inside; The trap fitting face acclive structure of tool each other of cover 1-2 on 1-1 and the dust cap of described dust cap, this gradient can guarantee at the trap spring 1-4 on 1-1 pulling top when rotated by external force of dust cap it to be compressed, and can also guarantee when external force is removed in the upper springs reseting procedure that the drive dust cap 1-1 that traps playbacks simultaneously simultaneously; When manual rotation is opened dust cap body 1, cover 1-1 rotates on the dust cap of dust cap body 1 drive lock body inside, thereby make on the dust cap 1-2 generation relative motion of trapping of cover 1-1 and the dust cap on top, the spring 1-4 at compressing bearing pin 1-3 top in the motion process, when external force is removed, the cover 1-1 automatic homing on the drive dust cap thereby spring 1-4 resets.
Be provided with state detection mechanism between described intelligent lock core M and the lock body N, described state detection mechanism is controlled by magneto sensor control or by travel switch.
Described state detection mechanism, the magneto sensor 5-1 and the magnetic post 5-2 that comprise the action that cooperatively interacts, described magneto sensor 5-1 is installed on the wiring board 5-3 of intelligent lock core M inside, described magnetic post 5-2 is installed in the lock body N in the intelligent lock core M outside, and the installation site of described magneto sensor 5-1 and magnetic post 5-2 should guarantee the induction magnetic field that (behind the intelligent lock core M rotation an angle of 90 degrees) can sense magnetic post 5-2 less than the magnetic field of magnetic post 5-2, when lockset is opened when lockset is closed; Thereby realize that the changes of magnetic field that state detection mechanism detects by magneto sensor 5-1 reflects the rotational angle of intelligent lock core M, thereby judge the on off state of lockset; Described magneto sensor 5-1 is Hall element or tongue tube, and described magnetic post 5-2 is made by permanent-magnet material.
Described state detection mechanism, by the travel switch control that is installed on intelligent lock core M inside, realize in an angle of 90 degrees rotational travel of described intelligent lock core M from the closure state to the opening that travel switch contact 6-1 is transformed into the process of compressive state from release conditions, described travel switch contact 6-1 is based in the periphery of intelligent lock core M and is positioned at the groove that is complementary with it that lock body N offers, and the slope change of the two ends extreme position of described groove guarantees release travel switch contact 6-1 when lockset is closed, (behind the intelligent lock core M rotation an angle of 90 degrees) compresses travel switch contact 6-1 in lock core when lockset is opened; Thereby realize that the change in location that state detection mechanism detects by travel switch reflects the rotational angle of intelligent lock core M, thereby judge the on off state of lockset.
The end of data communication and power input mouth is the mechanism of the born moment of torsion of mutual coupling, be connected to come the transmission of data by the two contacts contact that comprises power line, data wire between Intelligent key and the intelligent lock core, the Intelligent key top is embedded with the first magnetic post 2-4 by the push shaft 2-3 of executing agency control connection except being convexly set in the convex surface 2-1 of top outer peripheral face and being laid in the engaging groove 2-2 that the top end face is downward concave design with also being provided with one the key electrode contacts C-1 in the described convex surface 2-1; Described intelligent lock core top is except being depressed in the groove 3-1 of top inner peripheral surface and being laid in the lock core inner face and be engagement pellet 3-2 to upper process design with also being provided with one the lock core electrode contacts C-2, be embedded with in the described groove 3-1 with Intelligent key in the second magnetic post 3-3 of being complementary of the first magnetic post 2-4; When the opening and closing intelligent lock, at first with the convex surface 2-1 corresponding inserted of Intelligent key in the groove of intelligent lock core, key electrode contacts C-1 contacts with lock core electrode electric shock C-2, and the engaging groove 2-2 of Intelligent key is meshed with the engagement pellet 3-2 of intelligent lock core subsequently; Two electrode contacts communication identity verifications, checking drives executing agency by rear Intelligent key, the push shaft 2-3 of executing agency triggers the first magnetic post 2-4 that promotes the Intelligent key head, the second magnetic post 3-3 of the first magnetic post 2-4 and intelligent built-in lock pin cooperatively interacts, and just can rotate Intelligent key and drive intelligent lock core and realize the unlatching of lockset or close in the situation that above-mentioned condition all satisfies.
The utility model Intelligent key and intelligent lock, data adapter unit and background management system cooperatively interact, and consist of bin remote intelligent management system, compared with prior art, have following some advantage:
1, can realize the operation of unit operation or network classification, can implement the remote intelligent management to lockset.By Data Communication in Computer Networks Real Time Monitoring lockset mode of occupation.Key can be authorized temporarily in long-range application; Can specify the key working condition by the mobile device monitoring; Can be to key long-range and locally nullify, unlock.
2, intelligent lock adopts the specially treated material with anticorrosive antirust function; Be provided with simultaneously dust and water proof apparatus, improve lockset protective capacities under adverse circumstances, greatly improve service life of lock (can use more than 5 years at outdoor environment) so that product can steady in a long-term move, fault rate is low.
3, increase on off state at lockset and detect, greatly reduced the erroneous judgement of lockset being used state, really realized " precisely " management.
4, the opening and closing between Intelligent key and the intelligent lock, by profile of tooth cooperate, magnetic field coupling, telecommunications Information Authentication three functions be in conjunction with realizing, guaranteed that the key mutual opening rate is extremely low and be difficult to copy.
Above-described embodiment of the present utility model only is for the utility model example clearly is described; and be not to be restriction to embodiment of the present utility model; for those of ordinary skill in the field; can also make other changes in different forms on the basis of the above description; here can't give all embodiments exhaustively, everyly belong to the row that apparent variation that the technical solution of the utility model extends out or change still are in protection domain of the present utility model.
Claims (3)
1. bin long-distance intelligent key is characterized in that
Comprise microprocessor, microprocessor is connected with the GSM information processing system, drives executing agency and data communication and power output interface;
The end of described data communication and power input mouth is the mechanism of the born moment of torsion of mutual coupling, be connected to come the transmission of data by the two contacts contact that comprises power line, data wire between Intelligent key and the intelligent lock core, the Intelligent key top is embedded with the first magnetic post (2-4) by executing agency's push shaft (2-3) control connection except being convexly set in the convex surface (2-1) of top outer peripheral face and being laid in the engaging groove (2-2) that the top end face is downward concave design with also being provided with one the key electrode contacts (C-1) in the described convex surface (2-1); Described intelligent lock core top is except being depressed in the groove (3-1) of top inner peripheral surface and being laid in the lock core inner face and be engagement pellet (3-2) to upper process design with also being provided with one the lock core electrode contacts (C-2), be embedded with in the described groove (3-1) with Intelligent key in the second magnetic post (3-3) of being complementary of the first magnetic post (2-4).
2. bin long-distance intelligent key as claimed in claim 1 is characterized in that
Described Intelligent key is connected with intelligent lock or data adapter unit by data communication and power output interface, realizes the cable data communication of Intelligent key and intelligent lock or background management system; Described Intelligent key is realized the wireless data communication of Intelligent key and background management system by the GSM information processing system; Described Intelligent key is locked authorization requests and is received the authorized order that the other side sends to the background management system transmit button via the GSM information processing system, the lockset operation information that records in the data storage is sent to background management system in real time, and what the reception background management system was sent does not shut information and instruction is set.
3. bin long-distance intelligent key as claimed in claim 1 is characterized in that
Described Intelligent key also carries out wireless telecommunications by the GSM information processing system with the appointment mobile device and is connected, and described Intelligent key is to specifying mobile device transmit button lock authorization requests and receiving the authorized order that the other side sends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220253169 CN202689700U (en) | 2012-05-31 | 2012-05-31 | Remote intelligent key of cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220253169 CN202689700U (en) | 2012-05-31 | 2012-05-31 | Remote intelligent key of cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202689700U true CN202689700U (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220253169 Expired - Lifetime CN202689700U (en) | 2012-05-31 | 2012-05-31 | Remote intelligent key of cabinet |
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| CN (1) | CN202689700U (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103186934A (en) * | 2013-04-08 | 2013-07-03 | 南京胜太迪玛斯电力系统有限公司 | Wireless intelligent key |
| CN104318652A (en) * | 2014-10-24 | 2015-01-28 | 国家电网公司 | Intelligent door lock management method of hydropower station |
| CN105844743A (en) * | 2016-03-21 | 2016-08-10 | 中国科学院半导体研究所 | Contact-type light-operated switch device with key end without battery |
| CN106023387A (en) * | 2016-07-07 | 2016-10-12 | 上海长跃通信技术有限公司 | Intelligent lock applied to Internet of Things |
| CN108170093A (en) * | 2018-03-27 | 2018-06-15 | 成都友房科技有限公司 | A kind of common key distributor gear |
| CN108320364A (en) * | 2018-03-30 | 2018-07-24 | 马建峰 | A kind of GPS Intelligent logistics padlock |
| CN108830999A (en) * | 2018-09-05 | 2018-11-16 | 国网山东省电力公司寿光市供电公司 | A kind of distribution net cage（Cabinet）Intelligent lock administration system |
| CN108830998A (en) * | 2018-09-05 | 2018-11-16 | 国网山东省电力公司寿光市供电公司 | A kind of distribution net cage（Cabinet）Smart lock control system |
| CN108843156A (en) * | 2018-09-05 | 2018-11-20 | 国网山东省电力公司寿光市供电公司 | A kind of distribution net cage（Cabinet）Smart lock |
| CN109410377A (en) * | 2018-09-05 | 2019-03-01 | 国网山东省电力公司寿光市供电公司 | A kind of distribution net cage (cabinet) Intelligent key |
| CN109448199A (en) * | 2018-12-21 | 2019-03-08 | 武汉黎赛科技有限责任公司 | A kind of key management cabinet and method |
| CN109898933A (en) * | 2019-02-18 | 2019-06-18 | 广州暨嘉智能设备有限公司 | A kind of remote key management system and method |
| CN114333111A (en) * | 2021-12-28 | 2022-04-12 | 国网山东省电力公司潍坊供电公司 | Controllable key access control, handheld key and door lock |
-
2012
- 2012-05-31 CN CN 201220253169 patent/CN202689700U/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103186934A (en) * | 2013-04-08 | 2013-07-03 | 南京胜太迪玛斯电力系统有限公司 | Wireless intelligent key |
| CN104318652A (en) * | 2014-10-24 | 2015-01-28 | 国家电网公司 | Intelligent door lock management method of hydropower station |
| CN105844743A (en) * | 2016-03-21 | 2016-08-10 | 中国科学院半导体研究所 | Contact-type light-operated switch device with key end without battery |
| CN106023387A (en) * | 2016-07-07 | 2016-10-12 | 上海长跃通信技术有限公司 | Intelligent lock applied to Internet of Things |
| CN108170093B (en) * | 2018-03-27 | 2024-01-02 | 成都友房科技有限公司 | Universal key distribution mechanism |
| CN108170093A (en) * | 2018-03-27 | 2018-06-15 | 成都友房科技有限公司 | A kind of common key distributor gear |
| CN108320364A (en) * | 2018-03-30 | 2018-07-24 | 马建峰 | A kind of GPS Intelligent logistics padlock |
| CN108830999A (en) * | 2018-09-05 | 2018-11-16 | 国网山东省电力公司寿光市供电公司 | A kind of distribution net cage（Cabinet）Intelligent lock administration system |
| CN108843156A (en) * | 2018-09-05 | 2018-11-20 | 国网山东省电力公司寿光市供电公司 | A kind of distribution net cage（Cabinet）Smart lock |
| CN109410377A (en) * | 2018-09-05 | 2019-03-01 | 国网山东省电力公司寿光市供电公司 | A kind of distribution net cage (cabinet) Intelligent key |
| CN108830998A (en) * | 2018-09-05 | 2018-11-16 | 国网山东省电力公司寿光市供电公司 | A kind of distribution net cage（Cabinet）Smart lock control system |
| CN109448199A (en) * | 2018-12-21 | 2019-03-08 | 武汉黎赛科技有限责任公司 | A kind of key management cabinet and method |
| CN109898933A (en) * | 2019-02-18 | 2019-06-18 | 广州暨嘉智能设备有限公司 | A kind of remote key management system and method |
| CN109898933B (en) * | 2019-02-18 | 2023-08-11 | 广州暨嘉智能设备有限公司 | Remote key management system and method |
| CN114333111A (en) * | 2021-12-28 | 2022-04-12 | 国网山东省电力公司潍坊供电公司 | Controllable key access control, handheld key and door lock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |