CN100541543C - Electronic lock management system - Google Patents
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- CN100541543C CN100541543C CNB2008100194707A CN200810019470A CN100541543C CN 100541543 C CN100541543 C CN 100541543C CN B2008100194707 A CNB2008100194707 A CN B2008100194707A CN 200810019470 A CN200810019470 A CN 200810019470A CN 100541543 C CN100541543 C CN 100541543C
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- 238000012544 monitoring process Methods 0.000 claims description 5
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- 230000032683 aging Effects 0.000 claims description 2
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- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims 1
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Abstract
Electronic lock management system, it is characterized in that its main station system is that a database server and a group network workstation are formed, write down the unlocking authority of the process of unblanking, preservation electron key, the mechanism and the personal information of preservation administrative authority with database server, and deposit all kinds of parameters of electronic lock, electron key; A database server and a group network workstation are formed network system; Network workstation place system management software, management software provide institutional management, electronic lock initialization setting, electron key initialization setting, electron key rights management, electronic key unlocking process management; Network workstation be used for reading electronic lock with the information of electron key or download message to electronic lock and electron key.System of the present invention is under the situation of the management of satisfying process that electronic lock unblanked, and electronic lock need not networking, and system cost, power consumption are little.
Description
Technical field
The present invention relates to electronic lock management system, a kind of being applied in all kinds of electrical energy metering tanks of electric system or the switch cubicle of more specifically saying so, need record to open, close the time of cabinet door, and, also comprise the door management that is used for other important events to the electronic lock management system that key user of service's authority manages.
Background technology
Electronic lock is used widely, present electronic lock generally includes electronic-controlled installation and mechanical lock part, electronic-controlled installation is by the ID of identification key chip, the ID that passes through is sent unlock instruction open lockset by manpower or motor drive mode again, then refuse to send out a unlock instruction what do not pass through.There is following defective in this electronic lock, and one is that a key can only be driven a lock, and the 2nd, can not write down and inquire about uncaging time, number of times and unlocking person, the 3rd, internal electric source is in user mode always, and power consumption is higher.
Existing electronic lock management system also has a lot, mainly be similar to the guest room door management system in the hotel, but the electronic lock in this management system need partly provide power supply in lock control, if power-fail can't be opened the door.This class lock will physically connect into a network, is managed by main website.Key does not possess the analyzing and processing function, is a memory bank, and control analysis is handled and partly managed by lock control, and security has certain restriction.When lockset is dispersed in the different regions use,, and can't network with physics mode to the management maintenance difficulty of lock.
In power supply enterprise, unlatching, the situation of closing of electrical energy metering tank there are not a kind of effective monitoring means, can't accurately grasp and control information such as personnel in the electrical energy metering tank open and close process, time, number of times.To check meter, breakdown repair is reached the spot the time limit and do not have reliable foundation during other on-the-spot information on services statistics, when the service of generation accident, help to be difficult to search the person liable under client's stealing situation as the staff.At present power supply enterprise adopts the mode of the unified keeping of special messenger to the electrical energy metering tank key, because electrical energy metering tank quantity is very big, causes key quantity, specification corresponding more, and the process of providing key has taken the more time, and mistake often takes place in management.The padlock implementation that has batch meter now divides platform to distinguish lock number use, must customize to producer, and the while causes confusion for on-the-spot use because the quantity of each district's batch meter is inconsistent or because of the platform district transforms, the not enough or unnecessary situation of lock that the platform district distributes is pressed in appearance often.Because the quantity of key is limited,, have the not enough situation of key when a plurality of staff being taken place when needs are got the key of same numbering.Key has when situation such as losing, and tens cover locksets of identical numbering need all to change.The padlock of conventional metered dose case is owing to no rain insensitive device, and very fast corrosion after the several months causes and can't open the door.
Summary of the invention
The present invention is the weak point of avoiding above-mentioned prior art to deposit, and a kind of electronic lock management system is provided.This system can obtain the record of unblanking; An electron key is driven a plurality of locks; After electron key is lost, its unlocking function will lose efficacy; Under the situation of the management of satisfying process that electronic lock unblanked, electronic lock also need not networking, reduces the networking expense, reduces system cost; Reduce the entire system power consumption simultaneously.
The technical scheme that technical solution problem of the present invention is adopted is:
The characteristics of electronic lock management system of the present invention are that described system comprises main station system, electronic lock interface circuit, electron key interface circuit, electronic lock lock control circuit and electron key circuit; Described main station system is that a database server and a group network workstation are formed, write down the unlocking authority of the process of unblanking, preservation electron key, the mechanism and the personal information of preservation administrative authority with described database server, and deposit all kinds of parameters of electronic lock, electron key, comprise ID number of electronic lock, ID number of electron key, the password set of electronic lock; A described database server and a group network workstation are formed network system; Described network workstation place system management software, management software provide institutional management, electronic lock initialization setting, electron key initialization setting, electron key rights management, electronic key unlocking process management; Network workstation is connected with the electronic lock interface circuit by USB interface, is used for reading the information of electronic lock or download message to electronic lock; Network workstation is connected with the electron key interface circuit by USB interface, is used for reading the information of electron key or download message to electron key.
The design feature of system of the present invention also is:
Described electronic lock interface circuit comprises USB to 232 a connect chip U8 is set, with the reception of described connect chip U8 and send Serial Port Line and connect, as the information input/output terminal, USB interface J2 provides 5V power supply simultaneously, described 5V power supply, information input/output terminal and ground wire constitute the three core interface J1 that are connected with electronic lock, with the information of described three core interface J1 transceiver electronicses lock.
Described electron key interface circuit comprises USB to 232 a connect chip U9 is set, with the reception of connect chip U9 and send Serial Port Line and connect as the information input/output terminal, described information input/output terminal constitutes the two core interface J3 that are connected with electron key with ground wire, start the electron key circuit by Serial Port Line, and the information of transceiver electronics key.
In the described electronic lock lock control circuit, a microprocessor U1 is set, microprocessor U1 uses the Serial Port Line of articulating as the information input/output terminal, is connected with electron key with described Serial Port Line, receives the command frame of key chip; Microprocessor U1 is with bus mode I
2C is connected with storer U2, and the data after the processing deposit storer U2 in; Microprocessor U1 is with I
2The C bus mode is connected with clock chip U3; Microprocessor U1 is connected with battery voltage monitoring chip U0; The output signal end of microprocessor U1 is connected with the control unit interface OUT-S of mechanical lock.
In the described key circuit microprocessor U5 is set, microprocessor U5 uses the Serial Port Line of articulating as the information input and output, is connected with electronic lock lock control circuit with described Serial Port Line, and microprocessor U5 is with bus mode I
2C is connected with data-carrier store U6, and the data after the processing are put into data-carrier store U6; Key is provided with a start-up circuit and power supply, after start-up circuit and the electronic lock management and control circuit contacts, obtains high level, and opens the key power supply, and microprocessor U5 carries out self-sustaining with the power initiation circuit after starting.
The present invention utilizes server and workstation to make up electronic lock management system, can be achieved as follows multiple function:
Realization is to the initialization setting of electronic lock and the renewal and the maintenance of all kinds of operational factors;
Realization is to initialization setting, rights management, the record acquisition of unblanking of electron key;
By electron key electronic lock is carried out the management of operational factor, can manage by main website without the physics networking thereby embodied electronic lock;
Use the electronic lock lockset of low-power consumption, the control power supply of lock is provided by electron key, and succinct key circuit and low energy consumption have reduced the volume of electron key greatly;
By the authority that the electron key interface circuit is authorized electron key switch electronic lock, comprise the lock number, time period, number of times of electronic lock etc., can accomplish that thus an electron key opens manyly electronic lock, made things convenient for centralized management to key.
After electron key was lost, outside the timeliness scope, the function of electron key will lose efficacy.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, system of the present invention can utilize main website to obtain the record of unblanking of electronic lock by electron key.
2, one can open a plurality of locks to electron key in the system of the present invention, make things convenient for the management of key.
3, after electron key was lost in the system of the present invention, under certain condition, the function of electron key will lose efficacy.
4, system of the present invention has promptly satisfied the electronic lock management of process of unblanking, and electronic lock also need not networking simultaneously, reduces the networking expense, reduces system cost.
5, the setting of communication interface of the present invention makes related data can carry out retrieval and inquisition and inquiry afterwards in real time.
6, the present invention is when lockset is failure to actuate, and not power consumption of system when electron key inserts lockset, provides the lockset power supply by electron key, and after electron key left lockset simultaneously, also not power consumption of electron key effectively reduced overall power.
7, the present invention is because of low in energy consumption, and electron key can use button cell as power supply, and simultaneously succinct key circuit can reduce the volume of electron key greatly.
Description of drawings
Fig. 1 constitutes block scheme for system of the present invention.
Fig. 2 is an electronic lock interface circuit schematic diagram of the present invention.
Fig. 3 is an electron key interface circuit schematic diagram of the present invention.
Fig. 4 is electronic lock management and control circuit theory diagrams of the present invention.
Fig. 5 is electron key circuit theory diagrams of the present invention.
Fig. 6 is the parameter setting up procedure of workstation of the present invention to electronic lock.
Fig. 7 is the parameter setting up procedure of workstation of the present invention to electron key.
Fig. 8 carries out the authority setting for workstation of the present invention to electron key and reads the recording process of unblanking of electron key.
Fig. 9 is the process of unblanking of electron key of the present invention.
Below by embodiment, the invention will be further described in conjunction with the accompanying drawings:
Embodiment
Constitute about system:
Referring to Fig. 1, the electronic lock management system that is made of main station system, electronic lock interface circuit, electron key interface circuit, electronic lock lock control circuit and electron key circuit is set;
About main station system:
Shown in Fig. 1, main station system is that a database server and a group network workstation are formed, database server is used for writing down the process of unblanking, preserve the unlocking authority of electron key, preserve the mechanism and the personal information of administrative authority, and be used to deposit all kinds of parameters of electronic lock, electron key, comprise ID number of electronic lock, ID number of electron key, the password set of electronic lock; Described database server links to each other with network system, and forms a network system with a group network workstation; Network workstation place system management software, management software provide institutional management, electronic lock initialization setting, electron key initialization setting, electron key rights management, electronic key unlocking process management; Network workstation is connected with the electronic lock interface circuit by USB interface, is used for reading the information of electronic lock or download message to electronic lock; Network workstation is connected with the electron key interface circuit by USB interface, is used for reading the information of electron key or download message to electron key.
About the electronic lock interface circuit:
Referring to Fig. 2, the connect chip U8 of electronic lock interface circuit adopts CH341T, capacitor C 13 is used for the internal electric source node decoupling of CH341T, capacitor C 12 is used for the external power source decoupling of CH341T, capacitor C 14, C11 and inductance UL1 form filtering circuit, crystal oscillator Y2 and C15 provide clock signal to CH341T, and resistance R 11 and R12 play metering function, and CH341T provides communication signal by current-limiting resistance and after connecing.The electronic lock interface circuit provides three core interface J1 to lock, promptly signal ground (the 1st pin of J1), signal wire (the 3rd pin of J1) and+5V power lead (the 2nd pin of J1), J2 is a USB interface.
About the electron key interface circuit:
Referring to Fig. 3, the connect chip U9 of electron key interface circuit is CH341T, capacitor C 18 is used for the internal electric source node decoupling of CH341T, capacitor C 17 is used for the external power source decoupling of CH341T, capacitor C 19, C16 and inductance UL2 form filtering circuit, crystal oscillator Y3 and C20 provide clock signal to CH341T, and resistance R 13 and R14 play metering function, and CH341T provides communication signal by current-limiting resistance and after connecing.The electron key interface circuit only provides two core interface J3 to key, i.e. signal ground (the 1st pin of J3) and signal wire (the 3rd pin of J3), and J4 is a USB interface.
About the lock control circuit:
Referring to Fig. 4, the microprocessor U1 of electronic lock lock control circuit adopts P89LPC922, and data-carrier store U2 adopts 24C256WI, and clock chip U3 is 8563T, and battery voltage monitoring chip U0 adopts BL8506.4 pin of described microprocessor connect the 3.3V power supply by resistance R 3,5 pin ground connection, 9 pin connect storer 5 pin, 10 pin connect storer 6 pin, 11,12 pin and connect after connect 3 pin of electronic lock interface IN-YS, 13 pin connect 1 pin of lockset control interface OUT-S, 14 pin connect 3 pin of lockset control interface OUT-S, 15 pin connect the 3.3V power supply, and 16 pin connect 1 pin of battery voltage monitoring chip, 2 pin of 18 pin and lockset control interface OUT-S and connect the back connect the 3.3V power supply by resistance R 4.Microprocessor CPU, storer and clock chip all connect communication by pull-up resistor R5, R6 with the I2C bus mode.
After key interface and electronic lock interface connect, in the lockset circuit, provide 5V power supply by electronic lock interface (IN-YS) 1,2 pin by the key internal cell, be adjusted into the constant pressure source of 3.3V through power supply U4, use for the lock control circuit, after the CPU initialization in the lock control circuit, make 3 pin of electronic lock interface IN-YS just obtain high level, this high level feeds back to key, be used to open the self-start circuit of key, connect the key internal electric source.
Whole lock control circuit obtains the real-time clock value by clock battery and 8563T clock chip, after CPU starts working, carry out unidirectional serial communication by 11,12 pin and key, key and electronic lock carry out information interchange by the stipulations of formulating, when information interchange is satisfied communication protocol and unlocking authority is arranged, then the CPU of electronic lock sends unlock command by 18 pin (P0.3) to mechanical lock, promptly realizes the process of unblanking.13 pin (P0.7) of CPU, 14 pin (P0.6) are used as the input of CPU, detect the state of lockset by the information of this bipod, if detect mechanical lock for opening state, then needn't resend unlock command.CPU all is recorded in uncaging time, unlocking times, unblank key ID number and other information of unblanking in the storer in the process of unblanking, convenient after inquiry.CPU monitors battery voltage value, after cell voltage is lower than setting, information is passed to key.
About the key circuit:
Referring to Fig. 5, the microprocessor U5 of key circuit adopts P89LPC922, and data-carrier store U6 adopts 24C256WI.The 9th pin of microprocessor U5,10 pin connect 5 pin and 6 pin of storer U6 respectively, connect the 3rd pin of electronic lock interface SOCKT1 after the 11st, the 12 pin parallel connections of microprocessor U5, microprocessor U5 and resistance R 7, R8 and triode Q1 constitute key internal electric source self-starting and latching circuit.Microprocessor U5 and storer U6 pass through pull-up resistor R10, R11 with I
2The C mode connects communication.
When key inserts lockset, the 5V power supply is sent to the electric lockset circuit by SOCKT1, electronic lock is started working, make 3 pin of the interface IN-YS in the electronic lock obtain high level, thereby make the tripod of SOCKT1 also obtain high level by IN-YS, make power supply U7 can export 3.3V stabilized voltage supply by the self-start circuit of triode unlatching key this moment, and this 3.3V power supply begins to power to the key built-in system.All the time to Enable Pin (the 3rd pin) the conveying high level of power supply U7, U7 is in running order always during feasible the unblanking, to keep the 3.3V constant voltage in the entire circuit during unblanking for CPU 20 pin (P0.1).After CPU starts working, send command frame to electronic lock, thereby electronic lock is discerned according to the relevant information that receives and is handled decision and whether unblank by 11,12 pin.CPU all is recorded in uncaging time, unlocking times, electronic lock ID number and other information of unblanking in the storer in the process of unblanking, convenient after inquiry.After key and electronic lock were finished communication and disconnected mutually, the CPU in the key went out low level to the 3rd human hair combing waste of U7, forbade U7 work, thus the general supply of turn-offing key.The R8 pull down resistor improves the unlatching thresholding of triode Q1 conducting, improves antijamming capability.
Unlocking authority in the key can be as required by the main website setting, therefore managerial personnel can easily carry out the authority setting to key before key is distributed to unlocking person, can stipulate which key fixes to drive which lock, and can set the ageing of key, promptly this key can only use in official hour just effectively, even if otherwise have key also can't unblank.Establish a self-start circuit in this key system, fundamental purpose is in order to reduce power consumption, when lockset is failure to actuate, not power consumption of system, have only when key inserts lockset, provide system's external power source, start the internal electric source of lockset and key more respectively by key, use for internal components, thereby reduced the consumption of system power supply.
Workstation is to the parameter setting up procedure of electronic lock:
Referring to Fig. 6, the parameter of electronic lock comprises that ID number of being used to discern electronic lock, code-set, versions of data number, function open sign etc., except that comprising that parameter also comprises that the time to electronic lock is provided with being provided with simultaneously, workstation carries out the parameter setting by the electronic lock interface circuit to electronic lock.Workstation is the transmitting order to lower levels frame at first initiatively, the legitimacy of electronic lock sense command frame is also carried out the password check and correction, for new electronic lock (be a certain appointed area of storer content in the electronic lock do not rewritten or still be FFH), electronic lock does not carry out cryptographic check and only carries out the validity checking of command frame.After detection and check and correction were passed through, electronic lock was replied workstation.The parameter of standing relevant that proceeds with one's work is sent to electronic lock with the command frame form, and electronic lock writes in the electronic lock internal storage by certain standard.
Workstation is to the parameter setting up procedure of electron key:
Referring to Fig. 7, the parameter of electron key comprises that the function of ID number of electron key, code-set, versions of data number, electronic lock opens sign, and workstation carries out the parameter setting by the electron key interface circuit to electron key.The electron key frame of at first initiatively giving an order, workstation carries out validity checking to command frame, and checks cipher, after finishing said process, workstation and electron key carry out the working method displacement, change into by workstation and initiatively propose order, and electron key is acknowledgement command as requested.The subsequent working station is issued to electron key with correlation parameter with the command frame form, and electron key writes in the electron key internal storage by certain standard.
Workstation carries out the authority setting to electron key and reads the recording process of unblanking of electron key:
Referring to Fig. 8, in this course, workstation at first reads and preserves the record case of unblanking of electron key, the unlocking authority next time of electron key is provided with subsequently again.What the unblanking to write down of electron key comprised that unblank record case and this electron key of this electron key read from electronic lock unblanks record case (before this electronic key unlocking by what other electron keys were opened, what write down in electronic lock may be the record of unblanking of other electronic key unlockings for the last time), the unblanking of this electron key write down the set of being made up of ID number of electronic lock and uncaging time and constituted, and unblanked to write down by electricity the set of forming with uncaging time for key ID number in the electronic lock for the last time and constituted.The unlocking authority of electron key is opened the set that sign forms by the function of zero-time, the effective fate of authority and ID number of can unblank and electronic lock and is constituted.
Workstation carries out the authority setting by the electron key interface circuit to electron key and reads the record of unblanking of electron key.The electron key frame of at first initiatively giving an order, workstation carries out validity checking to command frame, and checks cipher, after finishing said process, workstation and electron key carry out the working method displacement, change into by workstation and initiatively propose order, and electron key is acknowledgement command as requested.This key unlocking record that writes down in the electron key of subsequent working station and the record of unblanking for the last time that is kept at the electronic lock in the electron key, then unlocking authority is issued to electron key with the command frame form, electron key writes in the electron key internal storage by certain standard.
The process of unblanking of electron key:
Referring to Fig. 9, in this course, after the unlocking authority of electron key is identified, electron key at first reads the record of unblanking for the last time that writes down in the electronic lock, and be saved in the storer of electron key, preserve this record of unblanking again, send unlock command then and open lockset by electronic lock management and control circuit, the while electronic lock is preserved this and is unblanked to be recorded in the electronic lock storer.
Claims (4)
1, electronic lock management system is characterized in that described system comprises main station system, electronic lock interface circuit, electron key interface circuit, electronic lock lock control circuit and electron key circuit; Described main station system is that a database server and a group network workstation are formed, write down the unlocking authority of the process of unblanking, preservation electron key, the mechanism and the personal information of preservation administrative authority with described database server, and deposit all kinds of parameters of electronic lock, electron key, comprise ID number of electronic lock, ID number of electron key, the password set of electronic lock; A described database server and a group network workstation are formed network system; Described network workstation place system management software, management software provide institutional management, electronic lock initialization setting, electron key initialization setting, electron key rights management, electronic key unlocking process management, set the ageing of electron key; Network workstation is connected with the electronic lock interface circuit by USB interface, is used for reading the information of electronic lock or download message to electronic lock; Network workstation is connected with the electron key interface circuit by USB interface, is used for reading the information of electron key or download message to electron key;
After key and electronic lock are finished communication and disconnected mutually, forbid power supply U7 work, thereby turn-off the electron key general supply;
In the described electron key circuit microprocessor U5 is set, microprocessor U5 uses the Serial Port Line of articulating as the information input and output, be connected with electronic lock lock control circuit with described Serial Port Line, microprocessor U5 is connected with data-carrier store U6 with bus mode I2C, and the data after the processing are put into data-carrier store U6; Key is provided with a start-up circuit and power supply, after start-up circuit and the electronic lock management and control circuit contacts, obtains high level, and opens the key power supply, and microprocessor U5 carries out self-sustaining with the power initiation circuit after starting.
2, electronic lock management system according to claim 1, it is characterized in that described electronic lock interface circuit comprises is provided with USB to 232 a connect chip U8, with the reception of described connect chip U8 and send Serial Port Line and connect, as the information input/output terminal, USB interface J2 provides 5V power supply simultaneously, described 5V power supply, information input/output terminal and ground wire constitute the three core interface J1 that are connected with electronic lock, with the information of described three core interface J1 transceiver electronicses lock.
3, electronic lock management system according to claim 1, it is characterized in that described electron key interface circuit comprises is provided with USB to 232 a connect chip U9, with the reception of connect chip U9 and send Serial Port Line and connect as the information input/output terminal, described information input/output terminal constitutes the two core interface J3 that are connected with electron key with ground wire, start the electron key circuit by Serial Port Line, and the information of transceiver electronics key.
4, electronic lock management system according to claim 1, it is characterized in that in the described electronic lock lock control circuit microprocessor U1 being set, microprocessor U1 uses the Serial Port Line of articulating as the information input/output terminal, be connected with electron key with described Serial Port Line, receive the command frame of key chip; Microprocessor U1 is with bus mode I
2C is connected with storer U2, and the data after the processing deposit storer U2 in; Microprocessor U1 is with I
2The C bus mode is connected with clock chip U3; Microprocessor U1 is connected with battery voltage monitoring chip U0; The output signal end of microprocessor U1 is connected with the control unit interface OUT-S of mechanical lock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100194707A CN100541543C (en) | 2008-01-18 | 2008-01-18 | Electronic lock management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100194707A CN100541543C (en) | 2008-01-18 | 2008-01-18 | Electronic lock management system |
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| Publication Number | Publication Date |
|---|---|
| CN101216959A CN101216959A (en) | 2008-07-09 |
| CN100541543C true CN100541543C (en) | 2009-09-16 |
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|---|---|---|---|
| CNB2008100194707A Active CN100541543C (en) | 2008-01-18 | 2008-01-18 | Electronic lock management system |
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| CN102044100A (en) * | 2010-03-22 | 2011-05-04 | 珠海理想科技有限公司 | Intelligent lock-control system for electric power safety |
| CN101807316A (en) * | 2010-03-26 | 2010-08-18 | 深圳市科陆电子科技股份有限公司 | Electric intelligent lock system and control method |
| CN102373830A (en) * | 2010-08-18 | 2012-03-14 | 深圳市科陆电子科技股份有限公司 | Electric intelligent key and unlocking method thereof |
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| CN104898507B (en) * | 2015-04-29 | 2018-09-18 | 德施曼机电（中国）有限公司 | A kind of blue-tooth intelligence cloud lock system and blue-tooth intelligence lock working method |
| CN104809795A (en) * | 2015-05-21 | 2015-07-29 | 河南传通电子科技有限公司 | Circuit structure utilizing mobile phone APP (Application Program), cloud platform and Bluetooth intelligent key control switch lock and implementation method of circuit structure |
| CN104933797A (en) * | 2015-06-30 | 2015-09-23 | 武汉天喻信息产业股份有限公司 | Intelligent card access control system and method based on dynamic token |
| CN106023364A (en) * | 2016-05-13 | 2016-10-12 | 常州市科能电器有限公司 | Access control system and method |
| CN106384412A (en) * | 2016-09-30 | 2017-02-08 | 国网浙江省电力公司宁波供电公司 | Wireless lockset system and unlocking method |
| CN106600794A (en) * | 2016-12-28 | 2017-04-26 | 深圳市正拓盛世精密设备有限公司 | Intelligent Bluetooth electronic lock |
| CN108798286A (en) * | 2018-06-08 | 2018-11-13 | 广东电网有限责任公司 | A kind of intelligent door lock system that distribution net equipment supervision is maked an inspection tour |
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2008
- 2008-01-18 CN CNB2008100194707A patent/CN100541543C/en active Active
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| CN101216959A (en) | 2008-07-09 |
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