CN105550826A - Security isolation anti-misoperation system - Google Patents

Security isolation anti-misoperation system Download PDF

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Publication number
CN105550826A
CN105550826A CN201610030441.5A CN201610030441A CN105550826A CN 105550826 A CN105550826 A CN 105550826A CN 201610030441 A CN201610030441 A CN 201610030441A CN 105550826 A CN105550826 A CN 105550826A
Authority
CN
China
Prior art keywords
intelligent key
management
lock
error
isolation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610030441.5A
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Chinese (zh)
Inventor
王磊
刘文玉
郑运
郭瑞来
郭鑫林
陈耕夫
杨耀杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Resources Power Hezhou Co Ltd
Original Assignee
China Resources Power Hezhou Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Resources Power Hezhou Co Ltd filed Critical China Resources Power Hezhou Co Ltd
Priority to CN201610030441.5A priority Critical patent/CN105550826A/en
Publication of CN105550826A publication Critical patent/CN105550826A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06QDATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00Administration; Management
    • G06Q10/06Resources, workflows, human or project management, e.g. organising, planning, scheduling or allocating time, human or machine resources; Enterprise planning; Organisational models
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06QDATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/06Electricity, gas or water supply
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME 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
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00658Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys
    • G07C9/00714Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with passive electrical components, e.g. resistor, capacitor, inductor

Abstract

The invention discloses a security isolation anti-misoperation system. The anti-misoperation system comprises a hardware system and a software system; the hardware system comprises a management host, monitoring equipment, an intelligent key, a lockset, a grounding wire management cabinet and a grounding wire; the software system comprises a work ticket module, an operation ticket module, an electrical temporary grounding wire module and a thermal engineering signal compulsory single module; the management host, the intelligent key and the grounding wire management cabinet are connected with each other through a network; and the software system is operated in the management host and the intelligent key. According to the invention, the complex management link can be simplified; automatic retrieval and identification of an isolation point can be realized; the operation link can be reduced; and the security assurance of overhaul workers can be improved.

Description

A kind of Secure isolation anti-error system
[technical field]
The invention belongs to power system security technical field, be specifically related to a kind of Secure isolation anti-error system, is a kind of new ant algorithms that electric power enterprise two ticket (work ticket and operation order) performs and manages.
[background technology]
Two tickets (work ticket and operation order) are the important operation foundations that power system security is produced.At present, in electric power enterprise, two tickets management be all separate, relevance is lower, easily cause management work numerous and diverse, repeat.
Work ticket management aspect, some enterprise introduces key locker block sytem.Key locker block sytem is several physical key casees of design (general 120/platform unit), each peace on-the-spot is arranged and is isolated as requested, twines chain, hangs warning sign, upper tapered end, after locking device state, isolation lock key is put in key locker, then on key chamber door, one is hung safety lock and control lock, safety lock key gives work responsible official keeping with after work ticket license, control lock key to be taken care of by work permit people, the isolation key of key locker could be taken out releasing peace after only having these two keys convergences together and arrange.This work ticket management mode can ensure that between turn(a)round, quarantine measures are not by people's malfunction, ensure that the safety of operating environment and operating personnel, but but there is following drawback: the tapered end that each measure uses, key number very important person for registering, input system one by one; Often opening work ticket all to need to be locked into key locker by pacifying the isolation lock key of arranging, then with safety lock and control lock, key locker being locked, when recovery peace is arranged, above step must be reversed again.A whole set of program is more loaded down with trivial details, and when especially work ticket isolation lock key is more, personnel need to manage the key of vast number, seriously reduce work ticket and handle efficiency.In addition, during the large light maintenance of unit, the multiple isolation of xegregating unit that intersects is locked, and needs to repeat padlock (sometimes a peace is arranged and needed extension tens lock) in a large number.
Operation order management aspect, some enterprise introduces five anti-lock systems.Five anti-lock systems high-voltage electrical switch cabinet, control box etc. are carried out punching transformation, hangs up five anti-lock, blocked handle hole or forbid opening front rear cabinet door with the mechanical lock of physics when equipment runs at switch cubicle front/rear door; Hang up five anti-lock and warning signs at handle hole during equipment blocking, prevent to prevent the accidents such as misdelivery electricity in maloperation and maintenance to reach in operation.If necessary, anti-error relay can also be connected in series on the divide-shut brake loop of high-voltage switch gear, operating right be linked on DCS or special five anti-monitoring equipments.Traditional five anti-lock systems generally form effective locking switch and the ground cutter of self, and electrically bus and temporary ground wire form locking by operation order, compare Work Bill Management System, five anti-lock system applicating histories are longer, and technology can be more ripe.But, need on five anti-monitoring figure, to carry out simulated maneuver according to anti-error principle before traditional five anti-lock Dynamic System, generating run ticket in advance, then downloaded in five preventing keys by operational order, the scene of taking operates, a whole set of operational administrative more complicated, electric operation and work ticket is caused to handle efficiency very low, after some enterprise uses a period of time, just eliminate the anti-lock anti-error function of part five, cause anti-delaying work to lose substantive significance.
Retrieve through Chinese publication, do not find the scheme identical with present patent application.
[summary of the invention]
In order to solve, two ticket management system interdependences in prior art are low, complex operation, electric work order sheet and operation order is caused to handle inefficient problem, the invention provides a kind of Secure isolation anti-error system, can the common feature of integrated key case block sytem and five anti-lock systems, strengthen again the relevance between two ticket management, can simplify complicated management link, realizing isolating points and automatically retrieve and identify, is a kind of innovative management system.
The present invention is by the following technical solutions:
A kind of Secure isolation anti-error system, comprises hardware system and software systems.Described hardware system comprises management host, watch-dog, Intelligent key, lockset, ground wire management cabinet and ground wire.Described management host, Intelligent key, ground wire management cabinet passes through network interconnection.Wherein Intelligent key is intelligent movable equipment, the authorization message sent by management host described in wifi or 3G Signal reception, and uploads execution information to described management host; Lockset is the intelligent lock of built-in near-field communication identification chip (NFC identification chip).Intelligent key is provided with the unlatching tapered end mated with described lockset, carries out lockset code identification, realize unblanking by the NFC chip information reading described lockset.Described software systems, integrated work ticket module, operation order module, electrically temporary grounding wire module, heat power engineering signal force single module integrated management, run in management host and Intelligent key.
The present invention eliminates numerous and diverse key locker and key, adopt virtual key locker alternate physical key locker, adopt Intelligent key to substitute traditional keys, adopt the intelligent lock of band NFC chip to substitute conventional lock, use temporary earth wire management cabinet to manage temporary ground wire, introduce electric five anti-lock, and by Intelligent key to five anti-lock management of unblanking.
The present invention uses Intelligent key to concentrate in together after cura generalis gets up by electric five anti-lock locks of isolating with work ticket, make to form associate management between work ticket and operation order, make electric five-prevention operation, electrically form effective latching relation between temporary ground wire, work ticket three.Therefore, this invention simplifies complicated management link, achieve isolating points and automatically retrieve and identify, decrease operation link, enhance the safety guarantee of upkeep operation personnel.The present invention has cross-operation and automatically detects and blocking function, includes work ticket isolation measure duplicate detection, operation order collision detection and related job ticket and automatically retrieves, gives as security ticket list prompting.A whole set of Secure isolation anti-error system is anti-error covers various maloperation type and maloperation region in daily production, has powerful Management and application effect.
Secure isolation anti-error system of the present invention utilizes the combination of electronic management platform and Intelligent key, completes the management to isolation lock, five anti-lock keys, achieves key locker in traditional mode, controls the blocking function of lock, safety lock.After Secure isolation anti-error system has introduced intelligent management, for the upkeep operation task that day-to-day operation, daily servicing or large light maintenance etc. are heavy, all can assist operations staff and the safety management of maintainer's specification, alleviate workload, increase work efficiency, potential safety hazard is suppressed from root, obtain remarkable result, be superior to traditional " two tickets " and manage pattern independently, open the new page that " two tickets " manages, filled up the blank in manufacturing enterprise's " two tickets " integrated management.
Secure isolation anti-error system of the present invention a set ofly has multinomial Innovative Elements, invention element, be superior to the Enterprise Security Management System of conventional management, enterprise can be helped to tamp safety management basis, specification security management processes, strengthen safety management quality, promote security assurance level, be a set of through practical proof, utility model, reproducible innovative safety management system.
[accompanying drawing explanation]
Fig. 1 is hardware system block diagram of the present invention.
Fig. 2 is work ticket process flow diagram of the present invention.
Fig. 3 is operation order process flow diagram of the present invention.
Fig. 4 is measure flowchart of the present invention.
Fig. 5 is measure removal process flow diagram of the present invention.
[embodiment]
Below in conjunction with accompanying drawing, the invention will be further described, but embodiments of the present invention are not limited thereto.
Secure isolation anti-error system of the present invention comprises hardware system and software systems, described hardware system comprises management host, watch-dog, Intelligent key, lockset, ground wire management cabinet and ground wire, and described software systems comprise work ticket module, operation order module, electrically temporary grounding wire module and heat power engineering signal forces single module; Described management host, Intelligent key and ground wire management cabinet passes through network interconnection; Described software systems run in described management host and Intelligent key.Secure isolation anti-error system of the present invention is mainly used in control and management when operating the safety practice of the work ticket used in the electric system of key locker block sytem and five anti-lock systems and operation order and five anti-instructions.The present invention can also be applied to other industry needing to safeguard equipment, overhaul, and uses isolation lock and five anti-lockly to lock locking poiut, to avoid the generation of security incident.
See Fig. 1, Secure isolation anti-error system use management main frame earth wire management cabinet of the present invention and Intelligent key manage.Management host, Intelligent key, ground wire management cabinet is by network interconnection, and wherein Intelligent key is intelligent movable equipment, is interconnected by wifi or 3G signal and management host, accepts authorization message and uploads execution information.
Intelligent key built-in isolation anti-error system management software, after librarian use account logs in, when " two tickets " is in operable state, can download Authorized operation instruction.The built-in NFC identification chip of lockset, Intelligent key, by identifying lockset chip information, realizes corresponding unlocking function.
After work ticket safety practice performs, when Intelligent key is locked to equipment, to any one isolation lock core chip written information, isolation is locked and is isolated apparatus bound, this isolation lock when system authorization unlocks after end-of-job, can only be removed.During operation order equipment operating, because of five anti-lock in advance and apparatus bound, it is anti-lock that Intelligent key can only open corresponding device five, reaches " five prevent " effect in operating process.
When work ticket safety practice does not need to lock after performing, as long as confirmation measure is performed on Intelligent key or watch-dog, just be equivalent to Intelligent key and carried additionally virtual lock to equipment, system unauthorized recovers this peace when arranging, and Intelligent key all shows this peace arranges and do not allow to be resumed state.
Arrange some ground wire locking devices in ground wire management cabinet, blocking device is by the specific ground wire of NFC chip identification in earth terminal.Under normal circumstances, earth terminal is blocked device and is locked in ground wire management cabinet, is in dormant state, and when taking ground wire by work ticket, blocking device discharges, and personnel can take corresponding ground wire away.After ground wire is taken back to position, blocking device automatic blocking earth terminal.
Locking device for grounding wire and earth terminal one_to_one corresponding, misplace None-identified, avoids different numbering, different electric pressure ground wire misplaces.Whether whether system be placed into by control software design real time monitoring ground wire, be blocked.
Fig. 2 is Secure isolation anti-error system work ticket schematic flow sheet of the present invention, and Fig. 3 is Secure isolation anti-error system operation order schematic flow sheet of the present invention.Wherein, work ticket example is, safety practice: 1, ×× bus hanging earthing conductor; 2, ×× switch disconnects, hangs and isolate lock arbitrarily; 3, ×× valve is closed; 4, ×× bus power switch disconnect, hang five anti-lock.Operation order example is, content of operation: 1, open ×× bus power switch ×× five anti-lock, pull open switch, and it is anti-lock to hang back ×× five.
Before maintainer carries out a certain service work, usual usage monitoring main frame submits the work ticket with some safety practice to operations staff, use printer print job ticket after the work ticket of state that operations staff receives " to be isolated ", use Intelligent key to download this ticket safety practice mandate to on-the-spot execution Quarantine Tasks, if relate to the situation (such as work ticket measure 4) using operation order, the operation order of " to be operated " state must be generated and use the mandate of Intelligent key down operation to on-the-spot executable operations task on work ticket.
See Fig. 4, work ticket is after " to be isolated " state, and first whether system judge that each peace is arranged and performed by other work ticket, if be performed, automatically quote be performed lock number, executor, the execution time, executing state, and by surveillance equipment and Intelligent key prompting.When scene needs to hang ground wire, ground wire cabinet a certain group of ground wire is selected, now locking device for grounding wire unlocking by personnel corresponding function district from work ticket, and personnel take out ground wire to hanging on the spot.When hanging isolation lock after scene needs peace to arrange to perform, librarian use Intelligent key is downloaded corresponding work ticket peace and is arranged, and by any one isolation is locked to and locks on the spot.When locking, Intelligent key records the number of locking, executor, execution time automatically, simultaneously to lock write device coding.Scene do not need peace arrange perform after padlock time, librarian use Intelligent key download corresponding work ticket peace arrange, after executive measure on Intelligent key confirm isolation, Intelligent key records executor, execution time automatically.When the operation of safety practice needs hangs with five anti-lock equipment, librarian use Intelligent key down operation ticket, to untiing five anti-latching operations according to operation order order on the spot, operation terminates to hang back five anti-lock.If equipment is in isolation, then operate without executable operations ticket.When personnel determine that in work ticket five anti-lock devices are isolated, system returns the anti-lock lock number of this equipment five automatically, and now the five anti-lock isolation lock functions that are taken as use.Safety practice is all finished, and operation information is returned by Intelligent key by personnel.
When work ticket is sent to " isolating " by " to be isolated ", the data such as pressure, temperature, flow, electric current, voltage that Secure isolation anti-error system reads isolation operation area real-time by SIS system carry out state inspection, differentiate that every peace arranges whether to perform on the spot to put in place, otherwise the information that gives a warning.
During license work ticket, Secure isolation anti-error system can automatically send out a warm tip note to work responsible official mobile phone, inform the other side: " the XXX work ticket that you handle in the XXX time pacify arrange executed complete, would you please jointly confirm to doing ticket room and permit neck ticket in person ".During work ticket license, the mode by fingerprint recognition or photo encrypted code is verified that whether meet ticket people is work responsible official, guarantees that both sides strictly fulfil work ticket management system by system, has evaded agency and has done ticket phenomenon.In addition, Secure isolation anti-error system is returned ticket or before expiring 2 hours at work ticket, automatically sends the reminding short message of related content to work responsible official mobile phone, the process of helpful tips the other side tracking in time.
Service work terminates, and electronic ticket flow process is sent to end-of-job state through work responsible official, licensor both sides, and Intelligent key just allows to download work ticket peace and arranges releasing authority; Work does not terminate, and Intelligent key then cannot be obtained the authorization, and achieves Intelligent key substituting physical key box mode.
During state that see Fig. 5, after end-of-job, work ticket is in " wait removing ", first system judges that whether in addition each peace arranges other work ticket to take, if occupied, and automatic blocking, this peace is arranged and is removed, and by surveillance equipment and Intelligent key prompting.When scene needs to remove ground wire, after ground wire is removed by personnel, put into the blocking device at the corresponding interval of ground wire cabinet according to numbering, blocking device automatic locking earth terminal, monitoring software detects that ground wire playbacks.On-the-spot need to open isolation lock and recover peace when arranging, librarian use Intelligent key is downloaded corresponding work ticket peace and is arranged to unlocking on the spot.Because storing facility information when lock is locked in isolation, only having Intelligent key equipment to unlock and authorizing, just can open corresponding isolation lock.During unblock, Intelligent key removes lock number automatically, and record recovers people, release time, removes isolation lock storing information simultaneously.On-the-spot peace does not have a padlock after arranging and performing time, librarian use Intelligent key is downloaded corresponding work ticket peace and is arranged, and confirm after recovery measure to recover on Intelligent key, Intelligent key automatically records and recovers people, release time.Safety practice recovers needs operation when hanging with five anti-lock equipment, and librarian use Intelligent key down operation ticket, unties five anti-latching operations according to operation order order on the spot, and operation terminates to hang back five anti-lock.When removing five anti-lock recovery measures, whether this five anti-lock device of system automatic decision is taken by other work ticket, as occupied, then and the anti-lock device of lock operation five.When personnel determine that in work ticket five anti-lock devices are resumed, system removes the anti-lock lock number of this equipment five automatically.Safety practice full recovery is complete, and operation information is returned by Intelligent key by personnel.
When work ticket is sent to " removing " by " wait removing ", the data such as pressure, temperature, flow, electric current, voltage that system reads isolation operation area real-time by SIS system carry out state inspection, differentiate that every peace arranges whether to perform on the spot to put in place, otherwise the information that gives a warning.If use ground wire in work ticket, whether system detects this ground wire by ground wire management software and playbacks, otherwise locking flow process; If have a certain peace to arrange not performed by Intelligent key, also by locking flow process.
After work ticket termination, automatically proceed to history.System supports the inquiry of all information (comprising work ticket, ground wire, the use record of virtual key locker, current state), and work ticket can carry out query analysis by various dimensions such as unit, teams and groups, specialty, type, operators.Forward inquiry can inquire about equipment padlock situation and the work ticket presences such as valve, switch, grounding switch; Oppositely can inquire about the virtual key locker of isolation lock association, action and padlock number of devices.
During equipment test run, after the peace that personnel selection need recover is arranged, system is automatically listed this peace and is arranged by all working ticket used, and after only having relevant ticket to give as security back, Intelligent key just authoritative restore is selected measure, completes test run.During equipment test run, request slip not only can be initiated by work ticket, also can initiate separately.The test run licence of independent initiation selects the peace that need recover to arrange whole work ticket is performed from system peace can arrange middle selection.
Finally illustrate, the Intelligent key that the present invention uses and ground wire management cabinet can be any type of, to which kind of Intelligent key of employing and ground wire management cabinet are not specifically limited.
Above content can not assert that specific embodiment of the invention is confined to these explanations; for general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; some simple deduction or replace can also be made, all should be considered as belonging to the scope of patent protection that the present invention is determined by submitted to claims.

Claims (5)

1. a Secure isolation anti-error system, comprise hardware system and software systems, it is characterized in that, described hardware system comprises management host, watch-dog, Intelligent key, lockset, ground wire management cabinet and ground wire, and described software systems comprise work ticket module, operation order module, electrically temporary grounding wire module and heat power engineering signal forces single module; Described management host, Intelligent key and ground wire management cabinet passes through network interconnection; Described Intelligent key is intelligent movable equipment; Described software systems run in described management host and Intelligent key.
2. Secure isolation anti-error system according to claim 1, is characterized in that, the authorization message that described Intelligent key is sent by management host described in wifi or 3G Signal reception, and uploads execution information to described management host.
3. Secure isolation anti-error system according to claim 1, is characterized in that, described lockset is the intelligent lock of built-in near-field communication identification chip.
4. Secure isolation anti-error system according to claim 1, is characterized in that, described Intelligent key is provided with the unlatching tapered end mated with described lockset.
5. Secure isolation anti-error system according to claim 1, is characterized in that, described Intelligent key carries out lockset code identification by the chip information reading described lockset, realizes unblanking.
CN201610030441.5A 2016-01-18 2016-01-18 Security isolation anti-misoperation system Pending CN105550826A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106024452A (en) * 2016-06-02 2016-10-12 国网山东省电力公司经济技术研究院 Grounding wire intelligent locking apparatus
CN107767516A (en) * 2017-10-27 2018-03-06 宁波瑞奥物联技术股份有限公司 A kind of intelligent door lock and intelligent key management system
CN109615556A (en) * 2018-11-13 2019-04-12 北京国电龙源环保工程有限公司 Intelligent work ticket safety measure and operation order closed loop verification method and device
CN110675540A (en) * 2019-09-27 2020-01-10 珠海优特电力科技股份有限公司 Lock management method and device for equipment maintenance and intelligent electronic lock
CN112510393A (en) * 2020-11-25 2021-03-16 云南电网有限责任公司电力科学研究院 Intrinsic safety terminal box and use method thereof

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CN104167029A (en) * 2013-05-20 2014-11-26 陈罡 Intelligent lock and operation method thereof
CN104269933A (en) * 2012-03-15 2015-01-07 江苏省电力公司常州供电公司 Remote permission device of power substation mistake-proof lock
CN204103597U (en) * 2014-08-26 2015-01-14 珠海华伟电气科技股份有限公司 Have the monitoring system of electric substation of gate, anti-error and wireless temporary grounding wire management concurrently

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104269933A (en) * 2012-03-15 2015-01-07 江苏省电力公司常州供电公司 Remote permission device of power substation mistake-proof lock
CN104167029A (en) * 2013-05-20 2014-11-26 陈罡 Intelligent lock and operation method thereof
CN204103597U (en) * 2014-08-26 2015-01-14 珠海华伟电气科技股份有限公司 Have the monitoring system of electric substation of gate, anti-error and wireless temporary grounding wire management concurrently

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106024452A (en) * 2016-06-02 2016-10-12 国网山东省电力公司经济技术研究院 Grounding wire intelligent locking apparatus
CN106024452B (en) * 2016-06-02 2018-02-09 国网山东省电力公司经济技术研究院 It is grounded smart locking device
CN107767516A (en) * 2017-10-27 2018-03-06 宁波瑞奥物联技术股份有限公司 A kind of intelligent door lock and intelligent key management system
CN109615556A (en) * 2018-11-13 2019-04-12 北京国电龙源环保工程有限公司 Intelligent work ticket safety measure and operation order closed loop verification method and device
CN110675540A (en) * 2019-09-27 2020-01-10 珠海优特电力科技股份有限公司 Lock management method and device for equipment maintenance and intelligent electronic lock
CN110675540B (en) * 2019-09-27 2021-10-22 珠海优特电力科技股份有限公司 Lock management method and device for equipment maintenance and intelligent electronic lock
CN112510393A (en) * 2020-11-25 2021-03-16 云南电网有限责任公司电力科学研究院 Intrinsic safety terminal box and use method thereof

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