CN106445782A - Data center computer room operation and maintenance method and mobile terminal - Google Patents
Data center computer room operation and maintenance method and mobile terminal Download PDFInfo
- Publication number
- CN106445782A CN106445782A CN201610856881.6A CN201610856881A CN106445782A CN 106445782 A CN106445782 A CN 106445782A CN 201610856881 A CN201610856881 A CN 201610856881A CN 106445782 A CN106445782 A CN 106445782A
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- Prior art keywords
- machine room
- maintenance personnel
- equipment
- data center
- operation maintenance
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3003—Monitoring arrangements specially adapted to the computing system or computing system component being monitored
- G06F11/3006—Monitoring arrangements specially adapted to the computing system or computing system component being monitored where the computing system is distributed, e.g. networked systems, clusters, multiprocessor systems
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course or altitude of land, water, air, or space vehicles, e.g. automatic pilot
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0231—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means
- G05D1/0238—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means using obstacle or wall sensors
- G05D1/024—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means using obstacle or wall sensors in combination with a laser
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course or altitude of land, water, air, or space vehicles, e.g. automatic pilot
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0257—Control of position or course in two dimensions specially adapted to land vehicles using a radar
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/34—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment
- G06F11/3438—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment monitoring of user actions
Abstract
The embodiment of the invention discloses a data center computer room operation and maintenance method and device. The method and device are used for solving the technical problems that a traditional IT operation and maintenance security auditing system is lack of control measures in field operation and maintenance, and many security problems are easily produced when operation and maintenance personnel have access to an industrial control system. The method includes the steps of autonomously moving to a machine cabinet where a device to be operated and maintained according to an obtained task instruction through a calculation result of an SLAM algorithm, controlling a brake for locking and stopping, logging into a bastion host by operation and maintenance personnel through a preset account number to skip to the device to be operated and maintained, and turning off a bastion host power supply sealed inside when it is monitored that the operation time duration of the operation and maintenance personnel reaches a preset time duration, and cutting off the connection between the operation and maintenance personnel and the device to be operated and maintained through the bastion host.
Description
Technical field
The present invention relates to information security and robot field, particularly relate to a kind of data center machine room O＆M method and movement
Device.
Background technology
In recent years, activities of hacker is becoming increasingly rampant, especially in recent years the information security attack for industrial control system
Being continuously increased, attacked by " shake net virus " from Iran in 2010 and cause nuclear power station centrifuge to damage, within 2015, Ukraine suffers
During black energy virus attack causes the generation of the information security events such as large-area power-cuts, and international industrial control system is emergent
The safety message of the heart (ICS-CERT) shows that industrial control system just progressively becomes the highest priority of assault, Industry Control system
The security protection of system faces more threat and challenge, brings great potential safety hazard to the industrial foundation equipment of country.
With the development of art of attack and defense, assault mode is just progressively turned to the many ways of diversification by long-distace network attack mode
Senior constant threat (APT) attack pattern of footpath mosaic society engineering science and 0DAY, wherein in recent years hacker for Industry Control
The attack of system shows, the attack current industrial control system just of virus mode of ferrying based on move media and notebook
The weakness of security protection.And current industrial control system owing to device type model is many, manufacturer is many, operation maintenance personnel is generally by non-meter
Calculation machine professional hold a concurrent post, and causes the on-the-spot O＆M of industrial control system machine room generally to there are third party manufacturer O＆M and equipment vendors
The situations such as O＆M, the operation maintenance personnel of these labyrinths may be brought many when lacking control device access industrial control system
The impact of aspect：
One is that mobile notebook carries malicious code and causes industrial control system to infect virus；
Two is that the improper operation of operation maintenance personnel causes industrial control system run-time error；
Three is that operation maintenance personnel is stolen sensitive information in O＆M process and caused intangible assets in enterprises to lose.
The solutions such as tradition IT O＆M safety auditing system (such as fort machine) can solve the safety problem of novel maintenance,
But the problem that cannot solve on-the-spot O＆M safety, such as the O＆M security audit for equipment control console mouth, as scene
The means such as the physical security management and control of O＆M device location.
Content of the invention
Embodiments provide a kind of data center machine room O＆M method and mobile device, solve tradition IT O＆M
Safety auditing system O＆M at the scene lacks control device so that easily produce all during operation maintenance personnel access industrial control system
The technical problem of many safety problems.
A kind of data center machine room O＆M method that the embodiment of the present invention provides, including：
It according to the assignment instructions getting, is autonomous mobile to treat O＆M equipment place machine by the result of calculation of SLAM algorithm
At cabinet, and control brake and carry out locking；
When monitoring operation maintenance personnel operation duration and reaching preset time period, disconnect the fort electromechanical source being enclosed in inside.
Alternatively, it according to the assignment instructions getting, is autonomous mobile to treat that O＆M sets by the result of calculation of SLAM algorithm
At the rack of standby place, and control before brake carries out locking, including：
Receive the typing of maintenance work information, obtain assignment instructions.
Alternatively, maintenance work information includes：
Treat that O＆M facility information, operation maintenance personnel login account, operation maintenance personnel operation allow duration.
Alternatively, the typing of maintenance work information is received, before obtaining assignment instructions, including：
Real-time Collection machine room cartographic information, builds map by SLAM algorithm, and identifies in machine room every to machine room plane
The map location of O＆M equipment.
Alternatively, Real-time Collection machine room cartographic information, builds map by SLAM algorithm to machine room plane, and identifies machine room
In every O＆M equipment map location before, including：
Receive and treat that O＆M table of equipment account creates instruction with typing and the reception operation maintenance personnel login account of log-on message, and raw
Become operation maintenance personnel login account.
Alternatively, when monitoring operation maintenance personnel operation duration and reaching preset time period, the fort machine being enclosed in inside is disconnected
Power supply, including：
When monitoring operation maintenance personnel operation duration and reaching preset time period, disconnected by GPIO interface control relay and closing
At internal fort electromechanical source.
A kind of mobile device, including：
Collecting unit, is used for gathering cartographic information；
Control unit, for moving according to the cartographic information control mobile device collecting；
Mobile unit, is used for moving mobile device；
Fort machine, is used for and O＆M equipment secure connection.
Alternatively, control unit includes：
Build subelement, be used for building machine room map, and identify the map location coordinate of machine room each rack interior.
Alternatively, control unit includes:
Control subelement, for being operated according to the cartographic information control motor collecting.
Alternatively, control unit includes:
Motor drive unit, is used for driving motor；
Judging unit, is used for monitoring and judges operation maintenance personnel operation duration start and stop motor.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages：
Embodiments provide a kind of data center machine room O＆M method and device, including：According to appointing of getting
Business instruction, is autonomous mobile to treat at the rack of O＆M equipment place by the result of calculation of SLAM algorithm, and controls brake and lock
Stop, operation maintenance personnel is logged in fort machine by default account and jumps to treat O＆M equipment；Operate duration when monitoring operation maintenance personnel
When reaching preset time period, disconnect be enclosed in inside fort electromechanical source, cut off operation maintenance personnel by fort machine with treat O＆M equipment
Connection；Solve in tradition IT O＆M safety auditing system O＆M at the scene and lack control device so that operation maintenance personnel accesses
The technical problem of many safety problems is easily produced during industrial control system.The method has possessed moving type security audit work(simultaneously
Can, extend the scope of audit of information security so that whether audit of information security is not route up to restriction by network.Additionally, it is logical
Cross the autonomous location navigation of wheeled mobile device, and locking is at O＆M equipment enclosure, it is achieved the on-the-spot O＆M of data center machine room
Operation physical space radius, it is ensured that operation maintenance personnel will not illegally touch non-O＆M equipment, it is achieved that the physics of on-the-spot O＆M
Security management and control.By organically blending of wheeled mobile device and fort machine, it is achieved during the operation of operation maintenance personnel maintenance work task
Between control, it is to avoid authorize overlong time problem.The record of the on-the-spot O＆M of machine room can be recorded by wheeled mobile device, further
The security audit of Auxiliary Machinery Rooms.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the accompanying drawing of required use is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, also may be used
To obtain other accompanying drawing according to these accompanying drawings.
The flow process signal of one embodiment of a kind of data center machine room O＆M method that Fig. 1 provides for the embodiment of the present invention
Figure；
The flow process of another embodiment of a kind of data center machine room O＆M method that Fig. 2 provides for the embodiment of the present invention is shown
It is intended to；
One example structure schematic diagram of a kind of mobile device that Fig. 3 provides for the embodiment of the present invention；
Another example structure schematic diagram of a kind of mobile device that Fig. 4 provides for the embodiment of the present invention.
Detailed description of the invention
Embodiments provide a kind of data center machine room O＆M method and mobile device, be used for solving tradition IT fortune
Dimension safety auditing system O＆M at the scene lacks control device so that easily produce during operation maintenance personnel access industrial control system
The technical problem of many safety problems.
For making goal of the invention, the feature of the present invention, advantage can be more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that disclosed below
Embodiment be only a part of embodiment of the present invention, and not all embodiment.Based on the embodiment in the present invention, this area
All other embodiment that those of ordinary skill is obtained under the premise of not making creative work, broadly falls into present invention protection
Scope.
Refer to Fig. 1, an embodiment of a kind of data center machine room O＆M method that the embodiment of the present invention provides, bag
Include：
101st, it according to the assignment instructions getting, is autonomous mobile to treat O＆M equipment institute by the result of calculation of SLAM algorithm
At rack, and control brake and carry out locking；
Machine room O＆M mobile device edits the assignment instructions of appointment according to the administrative staff that have getting, by SLAM algorithm
Result of calculation be autonomous mobile in assignment instructions treat at the place rack of O＆M equipment, and control brake, disconnect motor power
Carry out locking.
102nd, when monitoring operation maintenance personnel operation duration and reaching preset time period, the fort electromechanics being enclosed in inside is disconnected
Source；
In control brake and after carrying out locking, by operation maintenance personnel by fort machine with treat that O＆M equipment is connected, and by login
Fort machine jumps to treat the O＆M operation that O＆M equipment carries out treating O＆M equipment, reaches when monitoring operation maintenance personnel operation duration
During preset time period, disconnect the fort electromechanical source being enclosed in inside, cut off the connection of operation maintenance personnel and O＆M equipment.
The more than process for data center machine room O＆M method, below for the process of data center machine room O＆M method
Step is described in detail.Refer to Fig. 2, a kind of data center machine room O＆M method of the embodiment of the present invention, including：
201st, receive the typing treating O＆M table of equipment account and log-on message and reception operation maintenance personnel login account create instruction,
And generate operation maintenance personnel login account；
Fort machine receiving house in O＆M mobile device treats O＆M table of equipment account and the record treating O＆M equipment log-on message
Entering, it is achieved all unified managements treating O＆M equipment in fort machine-to-machine room, operation maintenance personnel can realize automatically stepping on by fort machine
Record invisible to operation maintenance personnel of equipment account number while redirect, it is ensured that operation maintenance personnel do not know O＆M equipment account number and cannot
Walk around fort machine and log in O＆M equipment.
Create the account number logging in fort machine for operation maintenance personnel in fort machine, and authorize account to allow the O＆M accessing to set
Standby, it is allowed to the instruction list of execution, it is allowed to the time range that account number logs in；Thus realize that fort machine accesses O＆M to operation maintenance personnel
Restriction, postaudit purpose in the mandate in advance of equipment, thing.
202nd, Real-time Collection machine room cartographic information, builds map by SLAM algorithm to machine room plane, and identifies in machine room
The map location of every O＆M equipment；
By using the laser radar apparatus Real-time Collection machine room cartographic information in O＆M mobile device, SLAM is used to calculate
Method, mobile O＆M mobile device in machine room, and build the map in machine room, the map location simultaneously identifying each rack is sat
Mark.In conjunction with the account of machine room O＆M equipment, the position coordinates of every O＆M equipment can be associated out.
203rd, receive the typing of maintenance work information, obtain assignment instructions；
Room system administrative staff log in fort machine by management account number, and editor assigns maintenance work task, and O＆M moves
In device, fort machine receives maintenance work mission bit stream and i.e. treats O＆M facility information, it is allowed to operating time, operation maintenance personnel account number etc.
The typing of information, wherein, treats that O＆M facility information can be for treating O＆M device id, and fort machine can obtain and license to operation maintenance personnel and step on
The account of record fort machine, it is allowed to the certain operating time of operation maintenance personnel, obtains concrete simultaneously also according to maintenance work mission bit stream
Assignment instructions, as independently moved on to specifically a certain O＆M equipment for the treatment of, allowed operation maintenance personnel log in account, operation maintenance personnel is permitted
The operating time permitted.
204th, it according to the assignment instructions getting, is autonomous mobile to treat O＆M equipment institute by the result of calculation of SLAM algorithm
At rack, and control brake and carry out locking；
Assignment instructions according to accessed by above, the result of calculation autonomous by SLAM algorithm for the O＆M mobile device
To the rack of O＆M equipment place, and control brake by disconnect motor power carry out locking.Assignment instructions is allowed
Working time all keeps locking state before terminating.
205th, when monitoring operation maintenance personnel operation duration and reaching preset time period, the fort electromechanics being enclosed in inside is disconnected
Source；
After control brake carrying out locking, operation maintenance personnel is reminded to be connected to, by O＆M equipment, work as fortune by fort machine interface
Dimension personnel by fort machine with treat that O＆M equipment is connected, and with the operation maintenance personnel login account Successful login of correct bill of assignment
After fort machine, jump to, by fort machine, the O＆M operation that O＆M equipment carries out treating O＆M equipment.
When monitoring operation maintenance personnel operation duration and reaching preset time period in assignment instructions, the control circuit in mobile device
Controlling relay by GPIO interface, the power supply disconnecting fort machine is powered；And remind operation maintenance personnel to arrive knocking-off time, please
Tidy up O＆M on-the-spot.Last O＆M mobile device uses SLAM algorithm, is independently back to parking and awaits orders district, and controls brake and carry out
Locking；Complete the bill of assignment work of a keeper.
Refer to Fig. 3, an embodiment of a kind of mobile device that the embodiment of the present invention provides, including
301st, collecting unit, is used for gathering cartographic information；
Collecting unit includes laser radar apparatus, environment sensing when walking as mobile device autonomous, map
Build sensor, avoidance stops the emphasis of barrier and the important sensor realizing SLAM navigator fix.
302nd, control unit, for moving according to the cartographic information control mobile device collecting；
Control unit includes main control circuit, for moving according to the cartographic information control mobile device collecting.
Wherein, control unit also includes GPS circuitry, inertial navigation circuit, for being connect by UART respectively with 3 sensors of laser radar
Mouth connects main control circuit, provides the positioning of mobile platform, map immediately to build to the control software that main control circuit runs, and
Independent navigation provides sensing data, and the main control circuit being is accurately controlled mobile device and carries out autonomous.
303rd, mobile unit, is used for moving embodiment of the present invention mobile device；
Mobile unit, for accepting the autonomous to mobile device for the control realization of control unit.
304th, fort machine, is used for and O＆M equipment secure connection.
Fort machine, is used for accepting the operation management of administrative staff and the typing of maintenance work information, and passes through operation maintenance personnel
Login account and O＆M equipment carry out secure connection.
A kind of mobile device providing for the embodiment of the present invention above, partly will be carried out to the concrete of this mobile device below
Detailed description, refers to Fig. 4, another embodiment of a kind of mobile device that the embodiment of the present invention provides, including：
401st, collecting unit, is used for gathering cartographic information；
Collecting unit includes laser radar apparatus, environment sensing when walking as mobile device autonomous, map
Build sensor, avoidance stops the emphasis of barrier and the important sensor realizing SLAM navigator fix.
402nd, control unit, including following subelement：
4021st, build subelement, be used for building machine room map, and identify the map location coordinate of machine room each rack interior；
4022nd, subelement is controlled, for being operated according to the cartographic information control motor collecting；
Control subelement includes main control circuit, for moving according to the cartographic information control mobile device collecting
Dynamic.Wherein, control subelement and also include GPS circuitry, inertial navigation circuit, for passing through respectively with 3 sensors of laser radar
UART interface connects main control circuit, provides the positioning of mobile platform, map instant to the control software that main control circuit runs
Building, and independent navigation providing sensing data, the main control circuit being is accurately controlled mobile device and carries out autonomous.
4023rd, motor drive unit, for driving motor under the control of main control circuit；
4024th, judging unit, is used for monitoring and judges operation maintenance personnel operation duration start and stop motor；
403rd, mobile unit, including following subelement：
4031st, mobile wheel, is used for moving mobile device；
4032nd, motor, is used for controlling mobile wheel and moves.
404th, fort machine, is used for and O＆M equipment secure connection.
Fort machine, is used for accepting the operation management of administrative staff and the typing of maintenance work information, and passes through operation maintenance personnel
Login account and O＆M equipment carry out secure connection.
Embodiments provide a kind of data center machine room O＆M method and device, including：According to appointing of getting
Business instruction, is autonomous mobile to treat at the rack of O＆M equipment place by the result of calculation of SLAM algorithm, and controls brake and lock
Stop, operation maintenance personnel is logged in fort machine by default account and jumps to treat O＆M equipment；Operate duration when monitoring operation maintenance personnel
When reaching preset time period, disconnect be enclosed in inside fort electromechanical source, cut off operation maintenance personnel by fort machine with treat O＆M equipment
Connection；Solve in tradition IT O＆M safety auditing system O＆M at the scene and lack control device so that operation maintenance personnel accesses
The technical problem of many safety problems is easily produced during industrial control system.
Those skilled in the art is it can be understood that arrive, for convenience and simplicity of description, and the system of foregoing description,
The specific works process of device and unit, is referred to the corresponding process in preceding method embodiment, does not repeats them here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method are permissible
Realize by another way.For example, device embodiment described above is only schematically, for example, and described unit
Dividing, being only a kind of logic function and divide, actual can have other dividing mode, for example multiple unit or assembly when realizing
Can in conjunction with or be desirably integrated into another system, or some features can be ignored, or does not performs.Another point, shown or
The coupling each other discussing or direct-coupling or communication connection can be by some interfaces, the indirect coupling of device or unit
Close or communication connection, can be electrical, machinery or other form.
The described unit illustrating as separating component can be or may not be physically separate, shows as unit
The parts showing can be or may not be physical location, i.e. may be located at a place, or also can be distributed to multiple
On NE.Some or all of unit therein can be selected according to the actual needs to realize the mesh of the present embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to two or more unit are integrated in a unit.Above-mentioned integrated list
Unit both can use the form of hardware to realize, it would however also be possible to employ the form of SFU software functional unit realizes.
If described integrated unit realizes and as independent production marketing or use using the form of SFU software functional unit
When, can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part that in other words prior art contributed or this technical scheme completely or partially can be with the form of software product
Embodying, this computer software product is stored in a storage medium, including some instructions are with so that a computer
Equipment (can be personal computer, server, or the network equipment etc.) performs the complete of method described in each embodiment of the present invention
Portion or part steps.And aforesaid storage medium includes：USB flash disk, portable hard drive, read-only storage (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey
The medium of sequence code.
The above, above example only in order to technical scheme to be described, is not intended to limit；Although with reference to front
State embodiment to be described in detail the present invention, it will be understood by those within the art that：It still can be to front
State the technical scheme described in each embodiment to modify, or equivalent is carried out to wherein portion of techniques feature；And these
Modification or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a data center machine room O＆M method, it is characterised in that include：
It according to the assignment instructions getting, is autonomous mobile to treat O＆M equipment place rack by the result of calculation of SLAM algorithm
Place, and control brake and carry out locking；
When monitoring operation maintenance personnel operation duration and reaching preset time period, disconnect the fort electromechanical source being enclosed in inside.
2. a kind of data center machine room O＆M method according to claim 1, it is characterised in that according to getting of task
Instruction, is autonomous mobile to treat at the rack of O＆M equipment place by the result of calculation of SLAM algorithm, and controls brake and carry out locking
Before, including：
Receive the typing of maintenance work information, obtain described assignment instructions.
3. a kind of data center machine room O＆M method according to claim 2, it is characterised in that described maintenance work information
Including：
Treat that O＆M facility information, operation maintenance personnel login account, operation maintenance personnel operation allow duration.
4. a kind of data center machine room O＆M method according to claim 2, it is characterised in that described reception maintenance work
The typing of information, before obtaining described assignment instructions, including：
Real-time Collection machine room cartographic information, builds map by SLAM algorithm, and identifies in described machine room every to machine room plane
The map location of O＆M equipment.
5. a kind of data center machine room O＆M method according to claim 4, it is characterised in that described Real-time Collection machine room
Cartographic information, builds map by SLAM algorithm to machine room plane, and identifies the map position of every O＆M equipment in described machine room
Before putting, including：
Receive the typing treating O＆M table of equipment account and log-on message；
Receive operation maintenance personnel login account and create instruction, and generate described operation maintenance personnel login account.
6. a kind of data center machine room O＆M method according to claim 1, it is characterised in that described working as monitors O＆M
When human users's duration reaches preset time period, disconnect the fort electromechanical source being enclosed in inside, including：
When monitoring operation maintenance personnel operation duration and reaching preset time period, disconnected by GPIO interface control relay in being enclosed in
The described fort electromechanical source in portion.
7. a mobile device, it is characterised in that include：
Collecting unit, is used for gathering cartographic information；
Control unit, for moving according to the described mobile device of cartographic information control collecting；
Mobile unit, is used for moving described mobile device；
Fort machine, is used for and O＆M equipment secure connection.
8. mobile device according to claim 7, it is characterised in that described control unit includes：
Build subelement, be used for building machine room map, and identify the map location coordinate of described machine room each rack interior.
9. mobile device according to claim 7, it is characterised in that described control unit includes:
Control subelement, for being operated according to the described motor of cartographic information control collecting.
10. mobile device according to claim 7, it is characterised in that described control unit includes:
Motor drive unit, is used for driving described motor；
Judging unit, be used for monitoring judge operation maintenance personnel operation duration and start and stop described in motor.
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| CN201610856881.6A CN106445782A (en) | 2016-09-27 | 2016-09-27 | Data center computer room operation and maintenance method and mobile terminal |
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Cited By (1)
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| CN109557911A (en) * | 2017-09-27 | 2019-04-02 | 苏州宝时得电动工具有限公司 | From mobile device and its automatic working system |
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