CN110219508A - A kind of intelligent key management box and its control method - Google Patents
A kind of intelligent key management box and its control method Download PDFInfo
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- CN110219508A CN110219508A CN201910600255.4A CN201910600255A CN110219508A CN 110219508 A CN110219508 A CN 110219508A CN 201910600255 A CN201910600255 A CN 201910600255A CN 110219508 A CN110219508 A CN 110219508A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000003993 interaction Effects 0.000 claims abstract description 4
- 230000008859 change Effects 0.000 claims description 7
- 238000000151 deposition Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B19/00—Keys; Accessories therefor
- E05B19/0005—Key safes
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B43/00—Time locks
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B45/00—Alarm locks
- E05B45/06—Electric alarm locks
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00563—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys using personal physical data of the operator, e.g. finger prints, retinal images, voicepatterns
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention discloses a kind of intelligent key management box and its control methods, management box includes cabinet, it is hinged with solar energy photovoltaic panel chamber door on cabinet, multiple key locks for locking key are equipped in cabinet, one side of each key lock is equipped with one for showing the display sub-module of key status；Display alarm module, the real time information for storing keys and memory module, fingerprint typing authentication module and the power module remembered for exceeding the time limit not give back key information for human-computer interaction and display are additionally provided in cabinet；Fingerprint typing authentication module connection display alarm module, display alarm module connect each key lock, display sub-module and memory module.The present invention can efficiently use the area of chamber door, and using electricity wisely can intelligently record key borrowing time etc., convenient for management key, reduce artificial and mistake.
Description
Technical field
The present invention relates to electricity fields, and in particular to article storage field more particularly to a kind of intelligent key management box and
Its control method.
Background technique
The O&Ms unit such as substation there are a large amount of key, have the key of equipment mechanism case, the key in different function room,
Operate the key etc. of equipment.Key amount is more, needs to carry out label in order to avoid obscuring, the key often lent out sometimes at work
Spoon cannot be given back on time, or even having forgotten is who is borrowed, and causes the loss of key.
Existing key management mainly sets up a key locker, and there are a lot of row's hooks in the inside.Label is all being posted on the key,
And key hook is posted fortunately in the case of corresponding label, correspond convenient key management.But current this key
Management box, which is easy to appear, to be late for giving back, or even the case where loss.In the presence of the unknown drawback of information such as lending and give back.
Summary of the invention
The purpose of the present invention is to provide a kind of intelligent key management box and its control methods, to solve problem above.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of intelligent key management box, including cabinet are hinged with solar energy photovoltaic panel chamber door, the cabinet on the cabinet
Interior to be equipped with multiple key locks for locking key, one side of each key lock is equipped with one for showing the aobvious of key status
Show submodule；
It is additionally provided in the cabinet and exceeds the time limit not give back the display alarm module of key information for human-computer interaction and display, use
In the real time information of storing keys and memory module, fingerprint typing authentication module and the power module of memory；
The solar energy photovoltaic panel chamber door is electrically connected the power module, and the power module connects the key lock, shows
Show alarm module, memory module, fingerprint typing authentication module and display sub-module, described in the fingerprint typing authentication module connection
Show that alarm module, the display alarm module connect each key lock, display sub-module and memory module.
Optionally, the battery module includes battery, and the solar energy photovoltaic panel chamber door connects the battery；It is described
Battery module further includes AC power supply module, and the AC power supply module connects alternating current；The battery passes through inverter
It is connected with AC power supply module；
The AC power supply module connects the key lock, display alarm module, memory module, fingerprint typing verifying mould
Block and display sub-module.
Optionally, the key lock is also connected with the timing mould closed after opening the predetermined time for controlling key lock
Block, it is described to go back label on the key.
Optionally, key information area and alarm area are divided into the display of the display sub-module, and the key information area is set
There are key pair tag column, lending time fences, lending name column and give back status bar, the alarm area is equipped with warning light；The display
Submodule be built-in with for measure key lending whether Chao Shi timing unit, the timing unit connection warning light.
Optionally, it the key pair tag column, lending time fences, lending name column and gives back status bar and successively arranges from top to bottom
Column, the key information area and alarm area are set gradually from left to right.
Optionally, the key inductor that whether there is for incuding key, the key induction are equipped at the key lock
Device connects the display sub-module.
Optionally, it is equipped with multiple key lockers in the cabinet, places a key, the key in each key locker
Inductor is set in the key locker；Key chamber door is hinged on the key locker, the key chamber door passes through key lock and key
Spoon case connection.
A kind of control method of intelligent key management box as described above, comprising the following steps:
When S11, borrow key, borrower inputs finger print information, fingerprint typing authentication module in fingerprint typing authentication module
The name that borrower is searched according to finger print information, is sent to display alarm module；
S12, borrower select at least one key lock to open on display alarm module, and display alarm module, which will be opened, to be believed
Number it is sent to corresponding key lock, key lock is automatically closed after the predetermined time has elapsed；
S13, display alarm module are corresponding by the name of borrower and the key lock of selection, the reality that record open signal is sent
When the time be key the lending time, change key lock gives back state for lending；
Key lending information is sent to memory module and the corresponding display sub-module of key lock, key by display alarm module
Lending information includes borrower's name, lends the time and give back state；
Key lending information shows borrower's name, lends the time and give back shape based on the received for S14, display sub-module
State；
S21, when giving back key, borrower inputs finger print information, fingerprint typing authentication module in fingerprint typing authentication module
The name that borrower is searched according to finger print information, is sent to display alarm module；
S22, display the alarm module key lock corresponding according to the name look-up of borrower, open signal is sent to
Key lock, key lock are automatically closed after the predetermined time has elapsed；
The state of giving back that S23, display alarm module record change key lock is to give back；
Display alarm module gives back key to information and is sent to memory module and the corresponding display sub-module of key lock, key
Give back information include update give back state；
Key gives back the display that information cancels borrower's name and lending time based on the received for S24, display sub-module, and
State is given back in update.
Optionally, the step S11 further include:
When fingerprint typing authentication module searches the name less than borrower according to finger print information, into fingerprint recording module,
Prompt borrower's typing name；
After borrower's typing name, fingerprint typing authentication module is corresponding by name and fingerprint and is added to library data；Later
Borrower's name is sent to display alarm module.
Optionally, the step S14 further include:
Since display sub-module timing receiving key lending information be greater than the default lending time in timing duration
Behind interval, warning light is lighted, and the information that time-out is not given back is sent to display alarm module；
The time-out that display alarm module summarizes each display sub-module does not give back information, is shown；
After the step S24 further include:
If display sub-module receives key when giving back information, key inductor is not sensed by key, and display sub-module is bright
Warning light is played, and the practical information that do not give back is sent to display alarm module；
The reality that display alarm module summarizes each display sub-module does not give back information, is shown and is sent to storage mould
Block.
Compared with prior art, the invention has the following advantages:
Intelligent key management box provided by the invention and its control method can be efficiently used by solar energy photovoltaic panel chamber door
The area of chamber door, reduces dependence to alternating current, using electricity wisely and provides safeguard in alternating current power-off.It is verified by fingerprint typing
Module etc. can typing borrower fingerprint, record borrowing time, the state of the corresponding key of each key lock of real-time display, convenient for pipe
Key is managed, artificial and mistake is reduced.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Structure depicted in this specification attached drawing, ratio, size etc., only to cooperate the revealed content of specification,
So that those skilled in the art understands and reads, enforceable qualifications are not intended to limit the invention, therefore do not have technology
On essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size can be generated not influencing the present invention
The effect of and the purpose that can reach under, should all still fall in the range of disclosed technology contents obtain and can cover.
Fig. 1 is the structural schematic diagram for the intelligent key management box that the embodiment of the present invention 1 provides.
Fig. 2 is the structural schematic diagram for the display sub-module that the embodiment of the present invention 1 provides.
It illustrates: 1, solar energy photovoltaic panel chamber door；2, key lock；3, display sub-module；31, key pair tag column；32, it borrows
Time fences out；33, name column is lent；34, status bar is given back；35, warning light；41, alarm module is shown；42, memory module；
43, fingerprint typing authentication module；44, power module.
Specific embodiment
In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below in conjunction with the present invention
Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that disclosed below
Embodiment be only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this field
Those of ordinary skill's all other embodiment obtained without making creative work, belongs to protection of the present invention
Range.
In the description of the present invention, it is to be understood that, term " on ", "lower", "top", "bottom", "inner", "outside" etc. indicate
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention and simplification retouch
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.It should be noted that when a component is considered as " connection " another component,
It can be directly to another component or may be simultaneously present the component being centrally located.
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
Embodiment 1
The present embodiment 1 provides a kind of intelligent key management box, including cabinet, is hinged with photovoltaic on the cabinet
Plate chamber door 1, the cabinet is interior to be equipped with multiple key locks 2 for locking key, and one side of each key lock 2 is equipped with a use
In the display sub-module 3 of display key status.
Be additionally provided in the cabinet for human-computer interaction and display exceed the time limit not give back key information display alarm module 41,
For the real time information of storing keys and memory module 42, fingerprint typing authentication module 43 and the power module 44 of memory.
The solar energy photovoltaic panel chamber door 1 is electrically connected the power module 44, and the power module 44 connects the key
Lock 2, display alarm module 41, memory module 42, fingerprint typing authentication module 43 and display sub-module 3, the fingerprint typing are tested
Card module 43 connects the display alarm module 41, and the display alarm module 41 connects each key lock 2, display sub-module
3 and memory module 42.
The intelligent key management box can reduce the dependence to alternating current, using electricity wisely by solar energy photovoltaic panel chamber door 1.It is logical
Cross fingerprint typing authentication module 43 etc. can typing borrower fingerprint, record borrowing time, each key lock 2 of real-time display is corresponding
The state of key reduces artificial and mistake convenient for management key.
Specifically, the battery module includes battery, the solar energy photovoltaic panel chamber door 1 connects the battery.Institute
Stating battery module further includes AC power supply module, and the AC power supply module connects alternating current.The battery passes through inversion
Device is connected with AC power supply module.
The AC power supply module connects the key lock 2, display alarm module 41, memory module 42, fingerprint typing
Authentication module 43 and display sub-module 3.
Specifically, the key lock 2 is also connected with the timing mould closed after opening the predetermined time for controlling key lock 2
Block, it is described to go back label on the key.Key lock 2, which is automatically closed, avoids artificial fault.
So that administrator quickly searches
Key information area and alarm area are divided into the display of the display sub-module 3, and the key information area is equipped with key
Tab bar 31, lends name column 33 and gives back status bar 34 lending time fences 32, and the alarm area is equipped with warning light 35.It is described
Display sub-module 3 be built-in with for measure key lending whether Chao Shi timing unit, the timing unit connection alarm
Lamp 35.
Specifically, the key pair tag column 31, lending time fences 32, lending name column 33 and give back status bar 34 from up to
Under be arranged successively, the key information area and alarm area set gradually from left to right.
In the present embodiment, the key inductor that whether there is for incuding key, the key are equipped at the key lock 2
Inductor connects the display sub-module 3.Key inductor has avoided borrower from pretending to give back key not giving back actually.
In the present embodiment, it is equipped with multiple key lockers in the cabinet, a key is placed in each key locker, it is described
Key inductor is set in the key locker.Key chamber door is hinged on the key locker, the key chamber door passes through key lock 2
It is connect with key locker.
Specifically, the key lock 2 includes the electromagnet lock body being installed on the cabinet and is installed on the key locker
Tapered end on door.When electromagnet lock body is powered, the tapered end is connected with electromagnet lock body magnetism, and the key lock 2 is locked
Tightly；When the electromagnet locks body no power, the tapered end and electromagnet lock body are disconnected, and the key lock 2 unclamps；Work as institute
Electromagnet lock body is stated when being once again powered up, electromagnet locks body and generates attraction to tapered end, and key chamber door can be attracted to be automatically closed.
Further, the elastic slice for flicking key chamber door is also equipped on key locker, when key lock 2 unclamps, key
Chamber door automatically springs open.
Embodiment 2
The present embodiment 2 provides a kind of control method of intelligent key management box, comprising the following steps:
When S11, borrow key, borrower inputs finger print information in fingerprint typing authentication module 43, and mould is verified in fingerprint typing
Block 43 searches the name of borrower according to finger print information, is sent to display alarm module 41；
S12, borrower select at least one key lock 2 to open on display alarm module 41, and display alarm module 41 will
Open signal is sent to corresponding key lock 2, and key lock 2 is automatically closed after the predetermined time has elapsed；
S13, display alarm module 41 are corresponding by the name of borrower and the key lock of selection 2, and record open signal is sent
Real-time time be key the lending time, change key lock 2 gives back state for lending；
Key lending information is sent to memory module 42 and the corresponding display sub-module of key lock 2 by display alarm module 41
3, key lending information includes borrower's name, lends the time and give back state；
Key lending information shows borrower's name, lends the time and give back shape based on the received for S14, display sub-module 3
State；
S21, when giving back key, borrower inputs finger print information in fingerprint typing authentication module 43, and mould is verified in fingerprint typing
Block 43 searches the name of borrower according to finger print information, is sent to display alarm module 41；
S22, display alarm module 41 key lock 2 corresponding according to the name look-up of borrower, open signal is sent out
It send to key lock 2, key lock 2 is automatically closed after the predetermined time has elapsed；
The state of giving back that S23, the display record of alarm module 41 change key lock 2 is to give back；
Display alarm module 41 gives back key to information and is sent to memory module 42 and the corresponding display sub-module of key lock 2
3, key give back information include update give back state；
Key gives back the display that information cancels borrower's name and lending time based on the received for S24, display sub-module 3,
And it updates and gives back state.
Wherein, the step S11 further include:
When fingerprint typing authentication module 43 searches the name less than borrower according to finger print information, into fingerprint typing mould
Block prompts borrower's typing name；
After borrower's typing name, fingerprint typing authentication module 43 is corresponding by name and fingerprint and is added to library data；It
Borrower's name is sent to display alarm module 41 afterwards.
The step S14 further include:
The display sub-module 3 timing since receiving key lending information, when timing duration is greater than default lending
Between be spaced after, light warning light 35, and the information that time-out is not given back is sent to display alarm module 41；
The time-out that display alarm module 41 summarizes each display sub-module 3 does not give back information, is shown；
After the step S24 further include:
If display sub-module 3 receives key when giving back information, key inductor is not sensed by key, display sub-module 3
Warning light 35 is lighted, and the practical information that do not give back is sent to display alarm module 41；
The reality that display alarm module 41 summarizes each display sub-module 3 does not give back information, is shown and is sent to storage
Module 42.
Intelligent key management box provided by the invention and its control method, have the advantage that
1, chamber door is made into using photovoltaic plate material, not only utilizes the area of door-plate, but also the energy of energy output green.
2, battery module is able to achieve two kinds of powering modes of alternating current and battery.Usually solar energy photovoltaic panel chamber door 1 generates
Energy stores battery.In the case where alternating current is unable to supply, battery can normal power supply.
3, by fingerprint typing authentication module 43, can Rapid input fingerprint, it is convenient and efficient and pacify using fingerprint management key
Entirely.
4, memory module 42 can effectively storing keys real time information, have memory function, prevent all power supplys from all losing
In the case where, information is lost.
5, display sub-module 3 is conveniently checked key information and time-out is not given back or the false state given back is accused
It is alert.
6, chamber door, which is automatically closed, avoids human error.
7, it shows that alarm module 41 summarizes time-out and do not give back key information, administrative staff is facilitated to check.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although referring to before
Stating embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of intelligent key management box, which is characterized in that including cabinet, solar energy photovoltaic panel case is hinged on the cabinet
Door, the cabinet is interior to be equipped with multiple key locks for locking key, and one side of each key lock is equipped with one for showing
The display sub-module of key status；
It is additionally provided in the cabinet and exceeds the time limit not give back the display alarm module of key information, for depositing for human-computer interaction and display
Memory module, fingerprint typing authentication module and the power module for storing up the real time information of key and remembering；
The solar energy photovoltaic panel chamber door is electrically connected the power module, and the power module connects the key lock, display report
Alert module, memory module, fingerprint typing authentication module and display sub-module, the fingerprint typing authentication module connect the display
Alarm module, the display alarm module connect each key lock, display sub-module and memory module.
2. intelligent key management box according to claim 1, which is characterized in that the battery module includes battery, institute
It states solar energy photovoltaic panel chamber door and connects the battery；The battery module further includes AC power supply module, the alternating current
Power supply module connects alternating current；The battery is connected by inverter with AC power supply module；
The AC power supply module connect the key lock, display alarm module, memory module, fingerprint typing authentication module and
Display sub-module.
3. intelligent key management box according to claim 1, which is characterized in that the key lock is also connected with for controlling
The timing module that key lock is closed after opening the predetermined time, it is described to go back label on the key.
4. intelligent key management box according to claim 1, which is characterized in that the display of the display sub-module is divided into
Key information area and alarm area, the key information area are equipped with key pair tag column, lending time fences, lending name column and give back shape
State column, the alarm area are equipped with warning light；The display sub-module be built-in with for measure key lending whether Chao Shi timing
Unit, the timing unit connect the warning light.
5. intelligent key management box according to claim 2, which is characterized in that the key pair tag column, lending time fences,
It lends name column and gives back status bar and be arranged successively from top to bottom, the key information area and alarm area are successively set from left to right
It sets.
6. intelligent key management box according to claim 1, which is characterized in that be equipped at the key lock for incuding key
The key inductor that spoon whether there is, the key inductor connect the display sub-module.
7. intelligent key management box according to claim 4, which is characterized in that multiple key lockers are equipped in the cabinet,
A key is placed in each key locker, the key inductor is set in the key locker；It is hinged on the key locker
There is key chamber door, the key chamber door is connect by key lock with key locker.
8. a kind of control method of such as intelligent key management box as claimed in any one of claims 1 to 7, which is characterized in that
The following steps are included:
S11, borrow key when, borrower fingerprint typing authentication module input finger print information, fingerprint typing authentication module according to
Finger print information searches the name of borrower, is sent to display alarm module；
S12, borrower select at least one key lock to open on display alarm module, and display alarm module sends out open signal
It send to corresponding key lock, key lock is automatically closed after the predetermined time has elapsed；
S13, display alarm module are corresponding by the name of borrower and the key lock of selection, record open signal send it is real-time when
Between be key the lending time, change key lock gives back state for lending；
Key lending information is sent to memory module and the corresponding display sub-module of key lock, key lending by display alarm module
Information includes borrower's name, lends the time and give back state；
Key lending information shows borrower's name, lends the time and give back state based on the received for S14, display sub-module；
S21, when giving back key, borrower inputs finger print information in fingerprint typing authentication module, fingerprint typing authentication module according to
Finger print information searches the name of borrower, is sent to display alarm module；
S22, display the alarm module key lock corresponding according to the name look-up of borrower, are sent to key for open signal
Lock, key lock are automatically closed after the predetermined time has elapsed；
The state of giving back that S23, display alarm module record change key lock is to give back；
Display alarm module gives back key to information and is sent to memory module and the corresponding display sub-module of key lock, and key is given back
Information include update give back state；
Key gives back the display that information cancels borrower's name and lending time based on the received for S24, display sub-module, and updates
Give back state.
9. the control method of intelligent key management box according to claim 8, which is characterized in that the step S11 is also wrapped
It includes:
When fingerprint typing authentication module searches the name less than borrower according to finger print information, into fingerprint recording module, prompt
Borrower's typing name；
After borrower's typing name, fingerprint typing authentication module is corresponding by name and fingerprint and is added to library data；It will borrow later
Employment name is sent to display alarm module.
10. the control method of intelligent key management box according to claim 8, which is characterized in that the step S14 is also wrapped
It includes:
Since display sub-module timing receiving key lending information be greater than default lending time interval in timing duration
Afterwards, warning light is lighted, and the information that time-out is not given back is sent to display alarm module；
The time-out that display alarm module summarizes each display sub-module does not give back information, is shown；
After the step S24 further include:
If display sub-module receives key when giving back information, key inductor is not sensed by key, and display sub-module lights announcement
Warning lamp, and the practical information that do not give back is sent to display alarm module；
The reality that display alarm module summarizes each display sub-module does not give back information, is shown and is sent to memory module.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266202A (en) * | 2021-04-11 | 2021-08-17 | 柳金婵 | Misoperation-preventing intelligent key box for transformer substation |
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| CN109523676A (en) * | 2018-11-23 | 2019-03-26 | 国网河南省电力公司检修公司 | A kind of intelligent error preventing operation key locker and its application method |
| 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 |
| CN211900096U (en) * | 2019-07-04 | 2020-11-10 | 广东电网有限责任公司 | Intelligent key management box |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266202A (en) * | 2021-04-11 | 2021-08-17 | 柳金婵 | Misoperation-preventing intelligent key box for transformer substation |
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Application publication date: 20190910 |