CN101362568B - Elevator abnormity diagnostic system - Google Patents
Elevator abnormity diagnostic system Download PDFInfo
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- CN101362568B CN101362568B CN2008101449120A CN200810144912A CN101362568B CN 101362568 B CN101362568 B CN 101362568B CN 2008101449120 A CN2008101449120 A CN 2008101449120A CN 200810144912 A CN200810144912 A CN 200810144912A CN 101362568 B CN101362568 B CN 101362568B
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Abstract
The invention relates to an abnormality diagnosing system for an elevator. The elevator (10) side is provided with a primary diagnosing device (20), and a monitoring center (31) side is provided with a secondary diagnosing device (30). At the primary diagnosing device (20), the abnormality diagnosing system collects data of each device and detects abnormal signs, and then sends the data of each device to the monitoring center (31) periodically, and reports the condition to the device detected with the abnormal signs to send the data. At the secondary diagnosing device (30), the abnormality diagnosing system stores the data of each device in a database (34), and predicts the failure period of the device according to the record of the data. If a device close to the failure period is existent, a service man attends the scene, till to the condition that failure does not occur at next maintenance and detection, the service man does not attend the scene to carry out corresponding treatment, so as to reduce the attendance times of service man.
Description
Technical field
The present invention relates to be used to diagnose the unusual abnormity diagnostic system of each equipment such as door, towing machine of elevator.
Background technology
Elevator plays important effect as transit equipment longitudinally, in the time of can not using producing fault etc., can bring very big trouble to the guest.Therefore, keep watch on always elevator state, prevent that fault from becoming very important in possible trouble.
In the past, as the device of the status surveillance that carries out elevator, the for example management system of patent documentation 1 disclosed elevator was arranged.This management system is made up of elevator control gear and management department's (central monitoring position).In the elevator control gear side, be provided with the unusual testing fixture of inspection elevator.In management department's side, be provided with the function of collection and treatment from the data of this testing fixture.
Patent documentation 1: No. 3016933 communique of patent
But, in the management system of the elevator of above-mentioned patent documentation 1, when the data of each equipment of collection, only detect unusual having or not through comparing with pre-set threshold.Therefore, though the equipment that does not sometimes also break down, also owing to being judged to be unusually with threshold.Be judged to be when unusual, need carrying out on-the-spot inspection operation, the maintainer increases to on-the-spot number of times.At this moment, if improve threshold value,, have the possibility that produces fault owing to the state of equipment though can reduce the maintainer to on-the-spot number of times.
Summary of the invention
The present invention accomplishes in view of above-mentioned aspect; Its purpose is to provide a kind of abnormity diagnostic system of elevator; It is in the period of breaking down than stage forecast early; Can when the maintenance examination of next time, carry out correspondence thus and handle, can prevent fault, and suppress the maintainer as possible to on-the-spot number of times in possible trouble.
The abnormity diagnostic system of elevator involved in the present invention; Comprise 1 diagnostic device of the control panel that is arranged on elevator and be arranged on 2 diagnostic devices that are connected the central monitoring position on this 1 diagnostic device via network; It is characterized in that: said 1 diagnostic device possesses: data gathering portion, and it regularly collects the data as each equipment of monitored object from said control panel; Reservoir, it stores the data of each equipment of being collected by this data gathering portion; The 1st diagnosing section, it is according to the unusual sign of Data Detection that is stored in each equipment in this reservoir; And Department of Communication Force, its data with said each equipment regularly send to said central monitoring position, and when detecting unusual sign by said the 1st diagnosing section, will comprise that immediately the data of this equipment of the diagnostic result that this detects unusual sign are sent; Said 2 diagnostic devices possess: Department of Communication Force, and it receives the data from relevant each equipment of said 1 diagnostic device; Data bank, it preserves the data of each equipment that is received by this Department of Communication Force; The 2nd diagnosing section, it is based on the state variation of said each equipment of resume analysis of the data that are kept at each equipment in this data bank, the period that prediction is broken down; With fault handling portion, it is for being judged as by the 2nd diagnosing section near the fault equipment in period, and the correspondence of being scheduled to is handled.
Description of drawings
Fig. 1 is the figure of structure of the abnormity diagnostic system of the related elevator of expression the 1st embodiment of the present invention.
Fig. 2 is the diagram of circuit that the processing of 1 diagnostic device side of the abnormity diagnostic system in this embodiment of expression is moved.
Fig. 3 is the diagram of circuit that the processing of 2 diagnostic device sides of the abnormity diagnostic system in this embodiment of expression is moved.
Fig. 4 is the figure that expression is provided with an example of the periodic table in 1 diagnostic device of abnormity diagnostic system in this embodiment.
Fig. 5 is the figure that expression is provided with an example of a reference value table in 1 diagnostic device of abnormity diagnostic system in this embodiment.
Fig. 6 is the figure that expression is provided with an example of the data in 2 diagnostic devices of abnormity diagnostic system in this embodiment.
Fig. 7 is the figure of expression with the failure prediction result of switching time when being example of the door in this embodiment.
Fig. 8 is the figure of structure of the abnormity diagnostic system of the related elevator of expression the 2nd embodiment of the present invention.
The specific embodiment
Below, with reference to accompanying drawing embodiment of the present invention is described.
(the 1st embodiment)
Fig. 1 is the figure of structure of the abnormity diagnostic system of the related elevator of expression the 1st embodiment of the present invention.
Linking at an end of the main horseline 11 of elevator 10 has car 12, and linking at the other end has counterweight 13.When driving towing machine 14, car 12 moves in elevating road via being wound on the main horseline 11 on this towing machine 14 with counterweight 13 bucket type.
The operation of car 12 control is carried out through the control panel 15 that is arranged on Machine Room etc. and locates.Control panel 15 is become by the general calculation mechanism with CPU (central processing unit), ROM (read-only memory (ROM)), RAM (random access memory) etc.In addition, lead-in wire 16 is installed in the lower end of this car 12.The transmission of the control signal between car 12 and the control panel 15, carry out via this lead-in wire 16 with respect to power supply supply of car 12 etc.
, in native system, possess 1 diagnostic device 20 and 2 diagnostic devices 30 here, form the abnormality diagnostic structure of carrying out elevator 10 with 2 stages.
1 time diagnostic device 20 uses as " simple diagnosis device ", has the function to the unusual sign of each Equipment Inspection of elevator 10.This 1 diagnostic device 20 is arranged on the control panel 15 of elevator 10, comprises data gathering portion 21, reservoir 22, diagnosing section 23, Department of Communication Force 24.
The data that data gathering portion 21 collects as each equipment of monitored object from control panel 15.Reservoir 22 stores the data of each equipment of being collected by data gathering portion 21.Diagnosing section 23 is the parts of carrying out 1 diagnostic process, with respect to the data that are stored in each equipment in the reservoir 22, compares with predefined a reference value respectively, detects unusual sign thus.Department of Communication Force 24 be and 2 diagnostic devices 30 between communicate the part of processing; The data of each equipment that will be collected by data gathering portion 21 regularly send to central monitoring position 31; And when detecting unusual sign, will comprise that immediately the data of this equipment of the diagnostic result that this detects unusual sign are sent by diagnosing section 23.
On the other hand, 2 diagnostic devices 30 use as " apparatus for diagnosis of abnormality ", have the function for the device predicted fault period that is detected unusual sign by 1 diagnostic device 20.These 2 diagnostic devices 30 are set at central monitoring position 31.
Central monitoring position 31 is present in long-range place, via the operative condition of network 40 telemonitoring elevators 10.In addition, in the example of Fig. 1, only express 1 elevator 10, but in fact on central monitoring position 31, be connected with many elevators that are present in various places via network 40.Central monitoring position 31 is kept watch on the operative condition of these elevators always, any sends the maintainer to this scene when unusual detecting.
Be arranged on 2 diagnostic devices 30 of this central monitoring position 31, comprise Department of Communication Force 32, diagnosing section 33, data bank 34 and fault handling portion 35.
Carry out data communication between Department of Communication Force 32 and 1 diagnostic device 20.The data of each equipment that is received by this Department of Communication Force 32 are passed to diagnosing section 33 and data bank 34.
Next, the processing action to native system describes.
Fig. 2 and Fig. 3 are the diagram of circuits of the processing action of expression native system, and Fig. 2 representes the processing of 1 diagnostic device 20 side, and Fig. 3 representes the processing of 2 diagnostic device 30 sides.
At first, the processing to 1 diagnostic device 20 side describes.
As shown in Figure 2, be arranged on 1 diagnostic device 20 of elevator 10, the data (steps A 11) of collecting as each equipment of monitored object from control panel 15 with the predetermined cycle by data gathering portion 21.
So-called " each equipment " for example is the door, towing machine 14 etc. of car 12.In addition, so-called " data " are for the data (action data) of the operating state of the operating equipment of expression elevator, for example if the door of car 12 then is the switching time etc.
Collecting the cycle of the data of these equipment is confirmed by the characteristic as the equipment of monitored object.That is, for occur from unusual sign beginning, state change lentamente, during break down long equipment, be provided with the collection cycle longer.On the contrary; For the equipment that beginning occurs, in the relatively shorter time, break down from unusual sign; Be provided with the collection cycle shorter, can detect unusual sign ahead of time, can not make the mode of inferring precise decreasing of inferring the period of breaking down is collected data.
If specify, arrive usually towing machine 14 produce till the faults during very long, so the collection cycle of the data relevant with towing machine 14 also can be longer.Relative therewith, the door of car 12 relatively is easy to generate fault, influences the operation of elevator immediately, so the collection cycle of the data relevant with door needs to shorten.
As shown in Figure 4, in being arranged on the periodic table 21a of data gathering portion 21, store in advance with respect to the collection cycle (T1, T2...) as the data of each apparatus settings of monitored object.The data of each equipment are collected with reference to this periodic table 21a by data gathering portion 21 with definite respectively cycle.
In addition, the data gathering cycle that is stored in each equipment among this periodic table 21a can at random change through the 21b of periodic change portion.The 21b of this periodic change portion carries out the change processing in data gathering cycle by the input operation of maintainer's input or from the outside indication of central monitoring position 31 according to elevator 10 sides.
In addition, 2 diagnostic devices 30 are compared identical or longer with the data gathering cycle of data gathering portion 21 from the cycle that 1 diagnostic device 20 obtains the data of each equipment.
In addition, for example for door, collecting under the switching data conditions with the unit period in 1 week, is not all data of sending in this 1 week, as long as extract and send maxim, minimum value, aviation value and up-to-date data wherein.But, under the situation of door, do not have the guest in existing sometimes during collecting, can not collect the floor that it opens and closes data.At this moment, utilizing the lower time band of frequency to implement the automatic inspection of door, send the switching data that obtain this moment as required.
In addition, compare under the significantly different data conditions, these data are removed when in each data of collecting, containing with other data with the unit in 1 week.For example, under the situation of the switching that hinders door owing to mischief etc., door does not does not open and close within a certain period of time, so the exceptional value of detecting.Obvious unusual data like this are essential factors that diagnostic accuracy is descended, so from collect data, remove.
The data of each equipment that 1 diagnostic device 20 will be collected like this are kept at (steps A 12) in the reservoir 22, carry out 1 diagnostic process (steps A 13) through diagnosing section 23 then.In this 1 diagnostic process, through detecting unusual sign with in advance a reference value of each apparatus settings being compared.
As shown in Figure 5, among a reference value table 23a in being arranged on diagnosing section 23, store a reference value (K1, K2...) in advance as each equipment of monitored object.Diagnosing section 23 judges with reference to this a reference value table 23a whether the data of each equipment surpass a reference value of confirming respectively.
If be (steps A 14 be) below a reference value, then diagnosing section 23 is judged as not unusually, and the continuation data gathering of keeping intact is becoming regular transmission during period (steps A 16 be), sends data (steps A 17) through Department of Communication Force 24 to central monitoring position 31.
In addition, in order to alleviate the burden of communication expense and central monitoring position 31, the transmission to central monitoring position 31 of data can get up to send with the aggregation of data of collecting, and sends with the result of the long-range inspection of carrying out with about 1 time every month cycle.The data that send to each equipment of central monitoring position 31 from 1 diagnostic device 20 are received by 2 diagnostic devices that are arranged on central monitoring position 31 30, and implement 2 diagnosis there.
On the other hand; 1 diagnotic result is (steps A 14 deny) under the situation of existence above the equipment of a reference value; Diagnosing section 23 has been regarded as occurring unusual sign (steps A 15), immediately to central monitoring position 31 these situation of report, and the data (steps A 17) of sending this equipment.
Next, the processing for 2 diagnostic device 30 sides describes.
As shown in Figure 3; Be arranged on 2 diagnostic devices 30 of central monitoring position 31; When receiving the data of each equipment that regularly sends from 1 diagnostic device 20; Perhaps, carry out 2 diagnostic process (step B12) by diagnosing section 23 receiving (step B11) when detecting the data of equipment of unusual sign by 1 diagnostic device 20.
In these 2 diagnostic process, predict the period that each equipment breaks down.
Data as shown in Figure 6, as in data bank 34, to preserve each equipment of collecting from each elevator with id information (0001,0002,0003...) classification.
Failure prediction result when expression is example with switching time of door in Fig. 7.Analyze the state variation of this equipment from this reception data (data 5) and past data (data 1～4), the switching time of trying to achieve door according to prediction type arrives the period of the threshold value (Kx) of predefined fault verification, as fault period (Tx).
Here;, being spaced apart from present moment to fault period (Tx) situation scheduled period more than under (step B13 deny) stable in the state variation of equipment; The possibility that diagnosing section 33 is judged as fault is also very low, with the data former state of this equipment be kept at (step B14) in the data bank 34.
On the other hand; Be judged as under the nearer situation in fault period; Promptly under the situation of interval from present moment to fault period (Tx) (step B13 is) less than the scheduled period; Diagnosing section 33 is checked not shown maintenance examination schedule, when determining next maintenance examination till this equipment whether can produce fault, and send its result to fault handling portion 35 (step B15).
Its result; Can not produce till when being judged as next maintenance examination under the situation of fault (step B15 not); Through fault handling portion 35; In said maintenance examination schedule, clearly put down in writing this equipment, be adjusted into then and can when next maintenance examination, carry out correspondence processing (step B16) near fault.At this moment, as shown in Figure 5, the attribute information of this situation of additional representation " adjustment " in the data of this equipment is kept at (step B17) in the data bank 34 then.
In addition, under the situation of meeting generation fault (step B15 is), fault handling portion 35 makes the maintainer carry out correspondence early to the scene immediately and handles (step B18) till being judged as next maintenance examination day.At this moment, also can and make the maintainer, for example also can utilize the directly contact portable terminal device that the maintainer held etc. and make the maintainer such as E-MAIL to the scene from central monitoring position 31 contact ancillary firm shops to the scene.
When making the maintainer to the scene, as shown in Figure 5, the attribute information of this situation of additional representation in the data of this equipment " makes the maintainer to the scene ", is kept at then (step B19) in the data bank 34.
Carry out above-mentioned same processing for each equipment.At this moment, for not judging near fault period but by 1 diagnostic detection equipment to unusual sign, fault handling portion 35 is adjusted into and when next maintenance examination, carries out the correspondence processing by 2 diagnosis.
In addition; For in 1 diagnosis, not detecting unusual sign but the equipment that these 2 diagnotic results have found unusual sign too; Fault handling portion 35 is investigated when next maintenance examination as required, thereby can ahead of time fault be eliminated in rudiment.
As stated; When the abnormity diagnosis of each equipment that carries out elevator 10; Be divided into 1 diagnosis and 2 diagnosis, in 1 diagnosis, diagnose easily, then the state variation of analytical equipment in 2 diagnosis; In the period that prediction is broken down, can when the maintenance examination of next time, suitably carry out correspondence thus and handle.In addition, fault can be prevented, and maintainer's the on-the-spot number of times that arrives can be suppressed as possible in possible trouble.
(the 2nd embodiment)
Next, the 2nd embodiment of the present invention is described.
Fig. 8 is the figure of structure of the abnormity diagnostic system of the related elevator of expression the 2nd embodiment of the present invention.In addition, for above-mentioned the 1st embodiment in the identical part of structure of Fig. 1 give same-sign, its explanation is omitted.
In the 2nd embodiment, many elevator 10a in being arranged on identical building, 10b, 11 diagnostic device 20 of the last connection of 10c.In this 1 diagnostic device 20, same with above-mentioned the 1st embodiment, be provided with data gathering portion 21, reservoir 22, diagnosing section 23, Department of Communication Force 24.
The data of each equipment are collected by data gathering portion 21 with the predetermined cycle from the control panel separately 15 of elevator 10a, 10b, 10c.In addition, the data gathering cycle of collecting the data of each equipment can be set in elevator 10a, 10b, 10c identical, also can set respectively.Classification stores the data of each equipment for each elevator in reservoir 22.
Later processing and above-mentioned the 1st embodiment are same.
That is, the data of each equipment of elevator 10a, 10b, 10c are kept in the reservoir 22, carry out diagnostic process 1 time through diagnosing section 23 then, detect unusual sign.Then, the data of each equipment are regularly sent to central monitoring position 31, and for the equipment that in above-mentioned 1 diagnosis, detects unusual sign, report this situation immediately and send data.
Be arranged on 2 diagnostic devices 30 of central monitoring position 31, receiving the data of each equipment of elevator 10a, 10b, 10c through Department of Communication Force 32.Then, carry out diagnostic process 2 times, use the data of present moment and the resume that are kept at the past data in the data bank 34 to predict the period that each equipment breaks down through diagnosing section 23.Prediction result if near the fault equipment in period, then makes the maintainer to the scene.In addition, under the situation that can not break down till up to next maintenance examination the time, the maintainer is handled to carry out correspondence on-the-spotly, alleviate the maintainer thus to on-the-spot number of times.
As stated, even many elevators 10 a, 10b, the 10c that are arranged in the identical building through 20 diagnosis of 11 diagnostic device also can access and above-mentioned same effect.At this moment, and among each elevator 10a, 10b, the 10c each 1 diagnostic device 20 is set respectively and compares, have the advantage of cost-cutting significantly.
In addition, under the situation that is made as the structure of diagnosing many elevators through 11 diagnostic device, the burden of diagnosing section increases, and also need increase the capacity of reservoir.But, adjust if the diagnosis of each elevator staggered period, then can alleviate the burden of diagnosing section.In addition, also can reduce the capacity of reservoir.
In addition, in the structure of Fig. 8, be example with 3 elevators, but also can be made as more elevator is connected the structure of carrying out 1 diagnostic process on 1 diagnostic device.
Importantly, the present invention is not limited to above-mentioned each embodiment, the implementation phase in the scope that does not break away from its purport, can and specialize structural element distortion.In addition, through will be in above-mentioned each embodiment disclosed a plurality of structural element appropriate combination, can form variety of way.For example, also can in all structural elements shown in the embodiment, omit several structural elements.And then, also can be with the structural element appropriate combination in the different embodiment.
According to the present invention, through in the period of breaking down, can when the maintenance examination of next time, carry out correspondence thus and handle than stage forecast early, can prevent fault in possible trouble, and suppress the maintainer as possible to on-the-spot number of times.
Claims (9)
1. the abnormity diagnostic system of an elevator; 2 diagnostic devices that it comprises 1 diagnostic device of the control panel that is arranged on elevator and is arranged on central monitoring position; Said central monitoring position is connected on this 1 diagnostic device via network, and the abnormity diagnostic system of this elevator is characterised in that:
Said 1 diagnostic device possesses:
Data gathering portion, it regularly collects the data as each equipment of monitored object from said control panel;
Reservoir, it stores the data of each equipment of being collected by this data gathering portion;
The 1st diagnosing section, it is according to the unusual sign of Data Detection that is stored in each equipment in this reservoir; With
The 1st Department of Communication Force, its data with said each equipment regularly send to said central monitoring position, and when detecting unusual sign by said the 1st diagnosing section, will comprise that immediately the data of this equipment of the diagnostic result that this detects unusual sign are sent;
Said 2 diagnostic devices possess:
The 2nd Department of Communication Force, it receives the data from relevant each equipment of said 1 diagnostic device;
Data bank, it preserves the data of each equipment that is received by the 2nd Department of Communication Force;
The 2nd diagnosing section, it is based on the state variation of said each equipment of resume analysis of the data that are kept at each equipment in this data bank, the period that prediction is broken down; With
Fault handling portion, it is for being judged as by the 2nd diagnosing section near the fault equipment in period, and the correspondence of being scheduled to is handled.
2. the abnormity diagnostic system of the elevator put down in writing of claim 1; It is characterized in that: said fault handling portion can not produce the equipment of fault till when being judged as next maintenance examination by said the 2nd diagnosing section, is adjusted into can when next maintenance examination, carry out correspondence and handle.
3. the abnormity diagnostic system of the elevator put down in writing of claim 1; It is characterized in that: said fault handling portion is adjusted into and when next maintenance examination, carries out correspondence processing for not judged near fault period by said the 2nd diagnosing section but detect the equipment of unusual sign by said the 1st diagnosing section.
4. the abnormity diagnostic system of the elevator put down in writing of claim 1; It is characterized in that: said fault handling portion is for not detecting unusual sign by said the 1st diagnosing section but by the equipment that the result of said the 2nd diagnosing section detects unusual sign, be adjusted into and when next maintenance examination, carry out correspondence processing.
5. the abnormity diagnostic system of the elevator put down in writing of claim 1; It is characterized in that: said data gathering portion has the periodic table in the collection cycle of the data of storing; With the predetermined cycle in said each equipment each carried out data gathering with reference to this periodic table, the collection cycle of wherein said data is set respectively in said each equipment each.
6. the abnormity diagnostic system of the elevator put down in writing of claim 5 is characterized in that: said data gathering portion possesses the periodic change portion that change at random is stored in the data gathering cycle of said each equipment in the said periodic table.
7. the abnormity diagnostic system of the elevator put down in writing of claim 1; It is characterized in that: said data gathering portion is for specific equipment, extracts maxim in a plurality of data of collecting with the predetermined cycle, minimum value, aviation value and up-to-date data as sending object.
8. the abnormity diagnostic system of the elevator put down in writing of claim 7 is characterized in that: in a plurality of data that said data gathering portion will collect with the predetermined cycle, compare significantly different data and remove with other the data in these a plurality of data.
9. the abnormity diagnostic system of the elevator put down in writing of claim 1; It is characterized in that: connect said 1 diagnostic device on many elevators in being arranged on identical building; Carry out 1 diagnostic process of said each elevator through said 1 diagnostic device, separately diagnostic result is sent to said central monitoring position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP209657/2007 | 2007-08-10 | ||
| JP2007209657A JP2009040585A (en) | 2007-08-10 | 2007-08-10 | Elevator abnormality diagnostic system |
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| Publication Number | Publication Date |
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| CN101362568A CN101362568A (en) | 2009-02-11 |
| CN101362568B true CN101362568B (en) | 2012-05-30 |
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| CN2008101449120A Active CN101362568B (en) | 2007-08-10 | 2008-08-07 | Elevator abnormity diagnostic system |
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| JP (1) | JP2009040585A (en) |
| CN (1) | CN101362568B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5645427B2 (en) * | 2010-03-03 | 2014-12-24 | 三菱電機株式会社 | Elevator failure diagnosis device and elevator failure diagnosis method |
| JP2014114111A (en) * | 2012-12-10 | 2014-06-26 | Hitachi Ltd | Elevator with abnormality diagnosis function |
| GB2536391A (en) * | 2014-01-09 | 2016-09-14 | Fujitsu Ltd | Analysis method, analysis program, and analysis device |
| JP6614343B2 (en) * | 2016-05-24 | 2019-12-04 | 三菱電機株式会社 | Elevator preventive maintenance system |
| CN106144819B (en) * | 2016-07-19 | 2018-09-07 | 日立楼宇技术（广州）有限公司 | The pre- diagnostic method and device of elevator |
| CN106429684B (en) * | 2016-10-17 | 2018-10-16 | 永大电梯设备（中国）有限公司 | A kind of elevator operation active method of inspection |
| CN106672733A (en) * | 2016-12-02 | 2017-05-17 | 常州大学 | Elevator failure analysis and early warning system based on micro-cloud intelligent terminal and method thereof |
| CN108455394B (en) * | 2017-02-20 | 2020-07-21 | 株式会社安川电机 | Elevator operation inspection method and device, management server and elevator control system |
| CN108529380B (en) * | 2018-03-27 | 2021-01-19 | 深圳市永达电子信息股份有限公司 | Elevator safety prediction method and system |
| JP6460291B1 (en) * | 2018-04-03 | 2019-01-30 | 三菱電機ビルテクノサービス株式会社 | Elevator data acquisition system |
| CN109581109A (en) * | 2018-12-05 | 2019-04-05 | 辽宁工程技术大学 | A kind of state of elevator multi-information fusion diagnostic method |
| CN111942973B (en) * | 2019-05-16 | 2023-04-11 | 株式会社日立制作所 | Elevator control device, robot fault precursor diagnosis system and method thereof |
| CN110155840B (en) * | 2019-05-22 | 2021-05-14 | 安徽奥里奥克科技股份有限公司 | Elevator data acquisition management system |
| JP6896799B2 (en) * | 2019-06-25 | 2021-06-30 | 東芝エレベータ株式会社 | Elevator remote diagnostic method and elevator remote diagnostic device |
| CN111026094B (en) * | 2019-12-30 | 2023-03-17 | 中国船舶重工集团公司第七一三研究所 | Fault diagnosis and remote maintenance method and system for platform door system |
| JP6806282B1 (en) * | 2020-06-25 | 2021-01-06 | 三菱電機株式会社 | Elevator remote monitoring system |
| WO2022190342A1 (en) * | 2021-03-12 | 2022-09-15 | 三菱電機株式会社 | Elevator group management device |
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| US5024296A (en) * | 1990-09-11 | 1991-06-18 | Otis Elevator Company | Elevator traffic "filter" separating out significant traffic density data |
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| JP3224914B2 (en) * | 1993-07-16 | 2001-11-05 | 株式会社日立ビルシステム | Elevator failure sign system |
| JP2002265160A (en) * | 2001-03-13 | 2002-09-18 | Hitachi Building Systems Co Ltd | Elevator management system |
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| CN1161304A (en) * | 1995-09-23 | 1997-10-08 | Lg产电株式会社 | Durability evaluating apparatus for elevator and method thereof |
| CN1754816A (en) * | 2004-09-27 | 2006-04-05 | 东芝电梯株式会社 | Portable abnormal diagnosis apparatus, lifter abnormal diagnosis system and method |
Also Published As
| Publication number | Publication date |
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| CN101362568A (en) | 2009-02-11 |
| JP2009040585A (en) | 2009-02-26 |
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