CN105645209B - Elevator maintenance system and method based on the support of Internet of Things big data - Google Patents
Elevator maintenance system and method based on the support of Internet of Things big data Download PDFInfo
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- CN105645209B CN105645209B CN201610119948.8A CN201610119948A CN105645209B CN 105645209 B CN105645209 B CN 105645209B CN 201610119948 A CN201610119948 A CN 201610119948A CN 105645209 B CN105645209 B CN 105645209B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0025—Devices monitoring the operating condition of the elevator system for maintenance or repair
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
A kind of Elevator maintenance system based on the support of Internet of Things big data, including car movement data acquisition module, elevator Internet of Things big data console module on each elevator.Car movement data acquisition module is used for the operation data of elevator where gathering in real time, and it is supplied to elevator Internet of Things big data console module after the operation data packing of collection is handled, elevator Internet of Things big data console module is used to store the operation data that each car movement data acquisition module provides, and the operation data of each elevator of storage and the maintenance judgment criteria information to prestore are determined whether each elevator needs maintenance by timing, when judging that any one elevator needs maintenance, produce the first maintenance execution information, first maintenance execution information is supplied to the maintenance staff for safeguarding any one elevator, so that maintenance staff safeguard any one elevator to scene.The present invention also provides a kind of elevator maintenance method based on the support of Internet of Things big data.
Description
Technical field
The present invention relates to elevator safety monitoring technical field, more particularly to a kind of elevator based on the support of Internet of Things big data
Maintenance system and method.
Background technology
What country's elevator maintenance at present performed is special safety equipment technical specification《TSG5001-2009》Elevator uses pipe
Reason and maintaining rule.Elevator maintenance unit carry out elevator maintenance management mostly by the way of papery maintenance record into
, also there are some electronics maintenance recording modes in row management, for example being tieed up based on single piece of RFID electronic label elevator for institute is marked in Shandong
The mode of keeping reason, the elevator maintenance way to manage based on 4 pieces of RFID electronic label of Ningxia electricity Tong Internet of Things company.
According to《TSG5001-2009》Rule requires, and each elevator is in spite of having safe operation, maintenance company
Maintenance staff will periodically arrive elevator and checked, safeguarded at the scene.However, since elevator installation number is every year with 20%
Speed above is increasing, and is limited be subject to operation cost, and the quantity increasing degree of elevator maintenance company and maintenance staff are non-
It is often small, cause the elevator quantity of averagely each maintenance staff's maintenance to increase year by year, generate serious man-machine contradiction, so that
Each maintenance staff can not be according to《TSG5001-2009》Rule completes the maintenance work of each elevator.
The content of the invention
In view of this, it is necessary to provide it is a kind of can determine elevator need maintenance based on Internet of Things big data support electricity
Terraced maintenance system.
There is a need to provide it is a kind of can determine elevator need maintenance based on Internet of Things big data support elevator maintenance
Method.
A kind of Elevator maintenance system based on the support of Internet of Things big data, including the elevator fortune on each elevator
Row data acquisition module, elevator Internet of Things big data console module;Elevator Internet of Things big data console module and elevator operation number
Connected according to acquisition module, to realize information exchange.Car movement data acquisition module is used for the operation of elevator where gathering in real time
Data, operation data include elevator identification information, elevator operating floor information, directional information, velocity information, acceleration information,
Door state information, the status information for whether having passenger, whether flat bed status information, whether have electricity status information, elevator fortune
Row data acquisition module is supplied to elevator Internet of Things big data console module, elevator after also the operation data packing of collection is handled
Internet of Things big data console module is used to store the operation data that each car movement data acquisition module provides, and timing will deposit
The operation data of each elevator of storage determine whether each elevator needs maintenance with the maintenance judgment criteria information that prestores, are sentencing
Break when any one elevator and needing maintenance, produce the first maintenance execution information, the first maintenance execution information is supplied to maintenance
The maintenance staff of any one elevator, so that maintenance staff safeguard any one elevator to scene.
A kind of elevator maintenance method based on the support of Internet of Things big data, comprises the following steps:Using installed in each
The operation data of elevator where car movement data acquisition module on elevator gathers the car movement data acquisition module, operation
Data include elevator identification information, elevator operating floor information, directional information, velocity information, acceleration information, door state letter
Breath, whether have passenger status information, whether flat bed status information, whether have electricity status information;
The operation number of each car movement data acquisition module collection is stored using elevator Internet of Things big data console module
According to;
Using elevator Internet of Things big data console module periodically by the operation data of each elevator of storage and the dimension to prestore
Judgment criteria information is protected to determine whether each elevator needs maintenance, when judging that any one elevator needs maintenance, is produced
First maintenance execution information, is supplied to the maintenance staff for safeguarding any one elevator by the first maintenance execution information, so that dimension
Guarantor person safeguards any one elevator to scene.
Above-mentioned Elevator maintenance system and method based on the support of Internet of Things big data, car movement data acquisition module are real-time
The operation data of elevator where collection, and it is supplied to elevator Internet of Things big data platform after the operation data packing of collection is handled
Module, elevator Internet of Things big data console module store the operation data that each car movement data acquisition module provides, and fixed
When the operation data of each elevator of storage are determined whether each elevator needs to tie up with the maintenance judgment criteria information that prestores
Protect, when judging that any one elevator needs maintenance, produce the first maintenance execution information, the first maintenance execution information is provided
To the maintenance staff for safeguarding any one elevator, so that maintenance staff safeguard any one elevator to scene, such as
This finds out operation elevator that is bad, having potential security risk, maintenance staff throw main attention by the analysis to running data
Enter onto such elevator, so as to ensure the security of overall elevator operation, accomplish 28 principles, 80% maintenance resource distribution is arrived
In 20% easy failure elevator, man-machine contradictory problems are solved.
Brief description of the drawings
Fig. 1 is the function module signal of the Elevator maintenance system based on the support of Internet of Things big data of a better embodiment
Figure.
In figure:Elevator maintenance system 10, car movement data acquisition module 20 based on the support of Internet of Things big data, elevator
Internet of Things big data console module 30, elevator maintenance application terminal module 40.
Embodiment
Referring to Fig. 1, the Elevator maintenance system 10 based on the support of Internet of Things big data includes being installed on each electricity
Car movement data acquisition module 20, elevator Internet of Things big data console module 30 on ladder;Elevator Internet of Things big data platform
Module 30 is connected with car movement data acquisition module 20, to realize information exchange.Elevator Internet of Things big data console module 30
For the computer system of analytic function is stored, handled with data.
Car movement data acquisition module 20 is used for the operation data of elevator where gathering in real time, and operation data include elevator
Whether identification information, elevator operating floor information, directional information, velocity information, acceleration information, door state information, have passenger
Status information, whether flat bed status information, whether have the status information of electricity, car movement data acquisition module 20 will also adopt
Elevator Internet of Things big data console module 30 is supplied to after the operation data packing processing of collection.
Elevator Internet of Things big data console module 30 is used to store the fortune that each car movement data acquisition module 20 provides
Row data, and the operation data of each elevator of storage and the maintenance judgment criteria information to prestore are determined each elevator by timing
Whether maintenance is needed, when judging that any one elevator needs maintenance, produce the first maintenance execution information, the first maintenance is held
Row information is supplied to the maintenance staff for safeguarding any one elevator so that maintenance staff to scene to any one elevator into
Row is safeguarded.In the present embodiment, the maintenance judgment criteria information to prestore can continue safe operation for reflection elevator
Threshold value runs data, including elevator continues normal operation maximum duration, elevator loading accumulation maximum times, elevator door opening-closing accumulation
Maximum times, elevator accumulate maximum times up and down, and elevator Internet of Things big data console module 30 is according to each elevator of storage
The current elevator of the operation each elevator of data statistics continues normal operation maximum duration, maximum times are accumulated in current elevator loading,
Current elevator door opening-closing accumulation maximum times, current elevator accumulate maximum times up and down, and the data counted are prestored with described
Maintenance judgment criteria information be compared to determine whether each elevator needs maintenance.
A step is carried out, the Elevator maintenance system 10 based on the support of Internet of Things big data further includes elevator maintenance application terminal
Module 40, elevator Internet of Things big data console module 30 according to prestore maintenance management information, the elevator of any one elevator
Identification information searches corresponding maintenance staff's information, and maintenance execution information is sent to elevator maintenance according to maintenance staff's information should
With terminal module 40, so that the maintenance execution information that maintenance staff show according to elevator maintenance application terminal module 40 is to needing to tie up
The elevator of guarantor carries out maintenance.
In other embodiments, car movement data acquisition module 20 is additionally operable to carry out event according to the operation data of collection
Hinder logic judgment, when judging the 20 place Lift out of order of car movement data acquisition module, car movement data collection
Module 20 produces fault message and fault message is sent to maintenance staff and taken by director information, car movement data acquisition module 20
The elevator maintenance application terminal module 40 of band, car movement data acquisition module 20 plays director information to be multiplied with pacifying in elevator
Visitor.Car movement data acquisition module 20 is supplied to elevator Internet of Things big data to put down after also the fault message packing of generation is handled
Platform module 30, elevator Internet of Things big data console module 30 are additionally operable to store the event that each car movement data acquisition module provides
Hinder information, this every elevator that the fault message of every elevator is stored with elevator Internet of Things big data console module 30 is occurring
Operation data during failure are corresponding, the fault message of every elevator and the fortune when breaking down of corresponding this every elevator
As maintenance judgment criteria information, elevator Internet of Things big data console module 30 is additionally operable to timing and is obtained according to fault message row data
Corresponding operation data are taken, and using the operation data of acquisition as failure with reference to data, elevator Internet of Things big data console module
Failure is compared to judge whether each elevator needs maintenance by 30 with reference to data and the operation data of other elevators of storage,
When judging that any one elevator needs maintenance, the second maintenance execution information is produced, the second maintenance execution information is supplied to
The maintenance staff of any one elevator are safeguarded, so that maintenance staff safeguard any one elevator to scene.
Wherein, car movement data acquisition module 20 includes level transducer, the basic unit's sensing being installed in corresponding elevator
Device, weighing sensor, door sensor, acceleration transducer, car top unit and car unit, car top unit and level transducer,
Basic unit's sensor, weighing sensor, door sensor, acceleration transducer are electrically connected, and car top unit is produced according to the sensor
Raw inductive signal produces operation data, and the operation data of generation are supplied to car unit, and car unit is to be arranged on electricity
Electronic equipment in terraced carriage, has the function of data processing function, takes pictures, plays video and audio, communication function, carriage list
Member will send elevator Internet of Things big data console module 30, operation of the car unit also to reception to after operation data packing processing
Data carry out fault logic judgement, for example, can be with the following 11 kinds of elevator faults of real-time judge:
1) rush to summit failure:When elevator position exceedes floor highest level position;2) crouching bottom failure:Elevator position is less than building
During the minimum level position of layer;3) exceed the speed limit failure:In running process of elevator, fellow disciple area does not test the speed more than volume for 3 processes
Constant speed degree, and more than the limitation speed of setting(The 115% of >=rated speed of lift);4) non-leveling zone domain enabling failure:Electricity
Ladder is in non-level position and enabling;5) the oppressive failure in non-leveling zone domain:Elevator is in non-level position, has in lift car
People and it is not normally functioning;6) non-leveling zone domain trouble of shutdown:Elevator stops in non-level position, in lift car no one and
Door is closed;7) power-off fault:Elevator supply grid power blackout;8) enabling failure is run:Elevator persistently opens the door during running;9)
Flat bed region enabling failure:Elevator is in door opening state for a long time;10) the oppressive failure in flat bed region:Someone and it is in elevator
Level position, closes the door for a long time;11) Room (layer) door opens by mistake failure:The Room (layer) door opens the door when carriage does not reach.
After determining 11 class failure of the above, car unit can carry out fault alarm processing:When Lift out of order, sedan-chair
Railway carriage or compartment unit gathers carriage image first, is then tieed up successively to elevator using unit or elevator management unit management personnel, elevator
Protect head of the unit and staff sends failure and informs short message, fault message, carriage image are then passed through into wireless network
System platform database is reported to, untill fault message is identified reception;When oppressive failure occurs for elevator, car unit
It can automatically play and pacify voice and video, to prevent captive from producing anxiety and aggressive behavior because fearing;When elevator occurs
During oppressive failure, car unit can use unit or elevator management unit management personnel, elevator maintenance unit work to elevator successively
Make personnel, supervisor dials default failure crisis phone only, trapped person can pass through sound pick-up built-in in car unit
Directly converse with the external world;When oppressive failure occurs for elevator, car unit can automatically turn on embedded emergency light, alleviate quilt
Tired person is nervous, flurried mood.
After determining 11 class failure of the above, car unit can also produce corresponding fault message, and the failure of generation is believed
Breath is sent to elevator Internet of Things big data console module 30.
Further, it is including following the present invention also provides a kind of elevator maintenance method based on the support of Internet of Things big data
Step:
Step S300, elevator operation number is gathered using the car movement data acquisition module on each elevator
According to the operation data of elevator where acquisition module, operation data include elevator identification information, elevator operating floor information, direction letter
Breath, velocity information, acceleration information, door state information, the status information for whether having passenger, whether flat bed status information, be
The no status information for having electricity.
Step S301, stores each car movement data acquisition module using elevator Internet of Things big data console module and gathers
Operation data.
Step S302, using elevator Internet of Things big data console module timing by the operation data of each elevator of storage with
The maintenance judgment criteria information that prestores determines whether each elevator needs maintenance, is judging that any one elevator needs maintenance
When, the first maintenance execution information is produced, the first maintenance execution information is supplied to the maintenance staff for safeguarding any one elevator,
So that maintenance staff safeguard any one elevator to scene.Wherein, the maintenance judgment criteria information that prestores is
Reflection elevator can continue the threshold value operation data of safe operation, including elevator continues normal operation maximum duration, elevator loading
Accumulation maximum times, elevator door opening-closing accumulation maximum times, elevator accumulate maximum times up and down;" utilize the big number of elevator Internet of Things
The operation data of each elevator of storage and the maintenance judgment criteria information to prestore are determined into each electricity according to console module timing
Ladder whether need maintenance " concrete mode be:According to the current electricity of the operation each elevator of data statistics of each elevator of storage
Ladder continue normal operation maximum duration, current elevator loading accumulation maximum times, current elevator door opening-closing accumulation maximum times, when
Preceding elevator accumulates maximum times up and down;By the data counted with true compared with the maintenance judgment criteria information to prestore
Whether fixed each elevator needs maintenance." the first maintenance execution information is supplied to the maintenance staff for safeguarding any one elevator,
So that maintenance staff to scene any one elevator is safeguarded " concrete mode be:Believed according to the maintenance management to prestore
Breath, the elevator identification information of any one elevator search corresponding maintenance staff's information, according to maintenance staff's information by maintenance
Execution information is sent to elevator maintenance application terminal module, so that what maintenance staff showed according to elevator maintenance application terminal module
Maintenance execution information carries out maintenance to the elevator for needing maintenance.
Further, the above-mentioned elevator maintenance method based on the support of Internet of Things big data, it is further comprising the steps of:
Step S303, fault logic judgement is carried out using car movement data acquisition module according to the operation data of collection.
Wherein, car movement data acquisition module includes level transducer, basic unit's sensor, the weighing and sensing being installed in corresponding elevator
Device, door sensor, acceleration transducer, car top unit and car unit, car top unit and level transducer, basic unit's sensor,
Weighing sensor, door sensor, acceleration transducer are electrically connected, the inductive signal that car top unit is produced according to the sensor
Operation data are produced, and the operation data of generation are supplied to car unit, car unit is the electricity being arranged in lift car
Sub- equipment, has the function of data processing function, takes pictures, plays video and audio, communication function, car unit will run data
Send elevator Internet of Things big data console module 30 after packing processing to, car unit also carries out failure to the operation data of reception
Logic judgment, for example, can be with the following 11 kinds of elevator faults of real-time judge:1) rush to summit failure:Elevator position is put down more than floor highest
During layer position;2) crouching bottom failure:When elevator position is less than floor minimum level position;3) exceed the speed limit failure:Run in elevator
Cheng Zhong, fellow disciple area does not test the speed more than normal speed for 3 processes, and more than the limitation speed of setting(>=rated speed of lift
115%);4) non-leveling zone domain enabling failure:Elevator is in non-level position and enabling;5) the oppressive event in non-leveling zone domain
Barrier:Elevator is in non-level position, someone and is not normally functioning in lift car;6) non-leveling zone domain trouble of shutdown:Elevator
Stop in non-level position, no one and door closing in lift car;7) power-off fault:Elevator supply grid power blackout;8) run
Enabling failure:Elevator persistently opens the door during running;9) flat bed region enabling failure:Elevator is in door opening state for a long time;10)
The oppressive failure in flat bed region:Someone and level position is in elevator, closed the door for a long time;11) Room (layer) door opens by mistake failure:
The Room (layer) door opens the door when carriage does not reach.
Step S304, in Lift out of order where judging car movement data acquisition module, car movement data
Acquisition module produces fault message and director information.
Fault message, is sent to the elevator maintenance application terminal module of maintenance staff's carrying by step S305, and is played and referred to
Fuse is ceased to pacify passenger in elevator.
Step S306, elevator is supplied to after the fault message packing of generation is handled using car movement data acquisition module
Internet of Things big data console module.
Step S307, stores each car movement data acquisition module using elevator Internet of Things big data console module and provides
Fault message, the fault message of every elevator is corresponding with the operation data when breaking down of this every elevator.
Step S308, periodically obtains corresponding operation data according to fault message, and using the operation data of acquisition as event
Failure is compared to whether judge each elevator by barrier with reference to data with reference to data and the operation data of other elevators of storage
Need maintenance.
Step S309, when judging that any one elevator needs maintenance, produces the second maintenance execution information, by the second dimension
Protect execution information and be supplied to the maintenance staff for safeguarding any one elevator, so that any one is electric to this to scene by maintenance staff
Ladder is safeguarded.
Claims (2)
- A kind of 1. Elevator maintenance system based on the support of Internet of Things big data, it is characterised in that:Including installed in each elevator On car movement data acquisition module, elevator Internet of Things big data console module;Elevator Internet of Things big data console module with Car movement data acquisition module connects, to realize information exchange.Car movement data acquisition module is used for where gathering in real time The operation data of elevator, operation data include elevator identification information, elevator operating floor information, directional information, velocity information, plus Velocity information, door state information, the status information for whether having passenger, whether flat bed status information, whether have electricity state letter Breath, car movement data acquisition module are supplied to elevator Internet of Things big data platform after also the operation data packing of collection is handled Module, elevator Internet of Things big data console module are used to store the operation data that each car movement data acquisition module provides, And the operation data of each elevator of storage are determined whether each elevator needs by timing with the maintenance judgment criteria information that prestores Maintenance is wanted, when judging that any one elevator needs maintenance, the first maintenance execution information is produced, by the first maintenance execution information The maintenance staff for safeguarding any one elevator are supplied to, so that maintenance staff tie up any one elevator to scene Shield;The threshold value that the maintenance judgment criteria information to prestore can continue safe operation for reflection elevator runs data, including electricity It is tired up and down that ladder continues normal operation maximum duration, elevator loading accumulation maximum times, elevator door opening-closing accumulation maximum times, elevator Product maximum times, elevator Internet of Things big data console module is according to the operation each elevator of data statistics of each elevator of storage Current elevator continues normal operation maximum duration, current elevator loading accumulation maximum times, current elevator door opening-closing accumulation maximum Number, current elevator accumulate maximum times up and down, and the data counted and the maintenance judgment criteria information to prestore are carried out Compare to determine whether each elevator needs maintenance;The Elevator maintenance system based on the support of Internet of Things big data further includes electricity Terraced maintenance application terminal module, elevator Internet of Things big data console module according to the maintenance management information to prestore, this any one The elevator identification information of elevator searches corresponding maintenance staff's information, is sent to maintenance execution information according to maintenance staff's information Elevator maintenance application terminal module, so that the maintenance execution information pair that maintenance staff show according to elevator maintenance application terminal module The elevator of maintenance is needed to carry out maintenance;Car movement data acquisition module is additionally operable to be patrolled according to the operation data of collection progress failure Collect and judge, in Lift out of order where judging car movement data acquisition module, the production of car movement data acquisition module Raw fault message and director information, the elevator that fault message is sent to maintenance staff's carrying by car movement data acquisition module are tieed up Application terminal module is protected, car movement data acquisition module plays director information to pacify passenger in elevator;Elevator runs number Elevator Internet of Things big data console module, elevator Internet of Things are supplied to after also the fault message packing of generation is handled according to acquisition module Net big data console module is additionally operable to store the fault message that each car movement data acquisition module provides, the event of every elevator Barrier information is corresponding with the operation data when breaking down of this every elevator, and elevator Internet of Things big data console module is also used Corresponding operation data are obtained according to fault message in timing, and using the operation data of acquisition as failure with reference to data, elevator Failure is compared to judge every by Internet of Things big data console module with reference to the operation data of data and other elevators of storage Whether a elevator needs maintenance, when judging that any one elevator needs maintenance, the second maintenance execution information is produced, by second Maintenance execution information is supplied to the maintenance staff for safeguarding any one elevator so that maintenance staff to scene to this any one Elevator is safeguarded.
- 2. a kind of elevator maintenance method based on the support of Internet of Things big data, comprises the following steps:Using installed in each electricity The operation data of elevator where car movement data acquisition module on ladder gathers the car movement data acquisition module, run number According to including elevator identification information, elevator operating floor information, directional information, velocity information, acceleration information, door state information, Whether have passenger status information, whether flat bed status information, whether have electricity status information;The operation data of each car movement data acquisition module collection are stored using elevator Internet of Things big data console module;The operation data of each elevator of storage are commented with the maintenance to prestore using the timing of elevator Internet of Things big data console module Standard information is sentenced to determine whether each elevator needs maintenance, when judging that any one elevator needs maintenance, produces first First maintenance execution information, is supplied to the maintenance staff for safeguarding any one elevator by maintenance execution information, so that maintenance people Member safeguards any one elevator to scene;The threshold value that the maintenance judgment criteria information to prestore can continue safe operation for reflection elevator runs data, including electricity It is tired up and down that ladder continues normal operation maximum duration, elevator loading accumulation maximum times, elevator door opening-closing accumulation maximum times, elevator Product maximum times;" the operation data of each elevator of storage are commented with the maintenance to prestore using the timing of elevator Internet of Things big data console module Sentence standard information to determine whether each elevator needs maintenance " concrete mode be:According to the operation number of each elevator of storage The current elevator of each elevator continues normal operation maximum duration, current elevator loading accumulation maximum times, current electricity according to statistics Terraced door opening and closing accumulation maximum times, current elevator accumulate maximum times up and down;The data counted and the maintenance judgment criteria information to prestore are compared to determine whether each elevator needs Maintenance;Wherein " the first maintenance execution information is supplied to the maintenance staff for safeguarding any one elevator, so that maintenance staff arrive Scene any one elevator is safeguarded " concrete mode be:According to the maintenance management information to prestore, any one electricity The elevator identification information of ladder searches corresponding maintenance staff's information, and maintenance execution information is sent to electricity according to maintenance staff's information Terraced maintenance application terminal module, so that the maintenance execution information that maintenance staff show according to elevator maintenance application terminal module is to need The elevator of maintenance is wanted to carry out maintenance;Wherein, using car movement data acquisition module fault logic judgement is carried out according to the operation data of collection;In Lift out of order where judging car movement data acquisition module, car movement data acquisition module produces event Hinder information and director information;Fault message is sent to the elevator maintenance application terminal module of maintenance staff's carrying, and plays director information to pacify electricity Passenger in ladder;It is further comprising the steps of:Electricity is supplied to after the fault message packing of generation is handled using car movement data acquisition module Terraced Internet of Things big data console module;The fault message of each car movement data acquisition module offer is stored using elevator Internet of Things big data console module, often The fault message of platform elevator is corresponding with the operation data when breaking down of this every elevator;Timing obtains corresponding operation data according to fault message, and using the operation data of acquisition as failure with reference to data, will Failure is compared to judge whether each elevator needs maintenance with reference to data and the operation data of other elevators of storage;When judging that any one elevator needs maintenance, the second maintenance execution information is produced, the second maintenance execution information is carried The maintenance staff of any one elevator are safeguarded in supply, so that maintenance staff safeguard any one elevator to scene.
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CN108357998A (en) * | 2018-01-05 | 2018-08-03 | 揭阳市聆讯软件有限公司 | Elevator Fault Diagnosis method, apparatus, system and storage medium |
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