CN101531303A - Elevator control device - Google Patents
Elevator control device Download PDFInfo
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- CN101531303A CN101531303A CN200910007545A CN200910007545A CN101531303A CN 101531303 A CN101531303 A CN 101531303A CN 200910007545 A CN200910007545 A CN 200910007545A CN 200910007545 A CN200910007545 A CN 200910007545A CN 101531303 A CN101531303 A CN 101531303A
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- brake equipment
- elevator
- brake
- control part
- control device
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Abstract
Provided is an elevator control device. A tractor (11), a traction wheel (12), a main horseline (13), a car (14) and a balance counterweight (15) of the elevator (1) are provided with a brake device (18a-18e) separately. When a abnormity detection part (20) detects an abnormity of the elevator (1), an action control part (21) drives each brake device (18a-18e) to act in a preconcerted sequence according to sequent data stored in a data table (22). Thereby, it is capable of reducing a deceleration when halting, restraining vibration and noise so as to stop the elevator smoothly.
Description
Technical field
The present invention relates to comprise the elevator control device of a plurality of brake equipments.
Background technology
Usually, in elevator, comprise being used for producing any brake equipment that the operation of elevator is stopped when unusual.As this brake equipment, be generally magnet stopper to the electrical motor brake activation power of towing machine.In recent years, based on safety problem, a plurality of such brake equipments need be set.
Here, in the past as the invention relevant with the elevator that comprises a plurality of brake equipments, the known for example spy of Japan opens 2001-146366 communique (below, be called patent documentation 1).In this patent documentation 1, disclose: the electrical motor of towing machine is provided with 2 magnet stoppers, to these 2 magnet stoppers, moves control in predetermined timing.
Yet in above-mentioned patent documentation 1,2 brake equipments are arranged on the same area (towing machine) of elevator, so can only brake at this position.And then, owing to use the brake equipment of identical type, so same time deterioration and need to change roughly.
In addition, on the other hand, if comprise a plurality of brake equipments, then their braking force is worked simultaneously when stopping, so the deceleration/decel of elevator is very high.Its result, thus also have produce vibration, noise brings problems such as uneasiness to the user.
Summary of the invention
The present invention carries out in view of above-mentioned aspect, it is a kind of by a plurality of brake equipments are moved in different timings respectively that its purpose is to provide, deceleration/decel when stopping is descended, thereby suppress the elevator control device that vibration, noise stop the operation of elevator smoothly.
Elevator control device involved in the present invention is characterized in that, comprising: be arranged on a plurality of different positions, to a plurality of brake equipments of described each position brake activation power; Store the data sheet portion of the alphabetic data that is used to make these brake equipment sequentially-operatings; Detect the unusual abnormity detection portion of elevator; With detecting by this abnormity detection portion when unusual, according to predetermined order described each brake equipment moved the operation control part of control based on the alphabetic data that is stored in described data sheet portion.
Description of drawings
Fig. 1 is the integrally-built figure of the related elevator control device of expression the 1st embodiment of the present invention.
Fig. 2 is the diagram of circuit of the processing action of the control setup in this embodiment of expression.
Fig. 3 is the integrally-built figure of the related elevator control device of expression the 2nd embodiment of the present invention.
Fig. 4 is the figure of the timer-operated relation of action of the speed of the car of expression in this embodiment and each brake equipment.
Fig. 5 is the diagram of circuit of the processing action of the control setup in this embodiment of expression.
Fig. 6 is the integrally-built figure of the related elevator control device of expression the 3rd embodiment of the present invention.
Fig. 7 is the diagram of circuit of the processing action of the control setup in this embodiment of expression.
Fig. 8 is the diagram of circuit of the processing action of the control setup in expression the 4th embodiment of the present invention.
The specific embodiment
Below, with reference to the description of drawings embodiments of the present invention.
(the 1st embodiment)
Fig. 1 is the integrally-built figure of the related elevator control device of expression the 1st embodiment of the present invention.Among the figure 1 is the elevator that is arranged at building, the 2nd, be used to control the control setup of the action of this elevator 1.
End binding at main horseline 13 has car 14, and linking at the other end has balance weight 15.When driving towing machine 11, traction sheave 12 rotations are followed in this, car 14 and balance weight 15 via main horseline 13 in elevating road 10 the bucket type lifting action.
In addition, with the action interlock of car 14, regulating control 16 drives via regulating control rope 17.This regulating control 16 is used to regulate the moving velocity of car 14.
In the present embodiment, be respectively arranged with a plurality of (being 5 in this embodiment) different brake equipment 18a～18e at each position of elevator 1 here.These brake equipments 18a～18e when operation stops to each position brake activation power of elevator 1.
In addition, the concrete structure for these brake equipments 18a～18e does not have direct relation with the present invention, so omit.
On the other hand, control setup 2 is made of the computing machine that is equipped with CPU, ROM, RAM etc., is arranged at the Machine Room in building etc. with towing machine 11.In addition, in the elevator of machine House-less type, control setup 2 and towing machine 11 are arranged in the elevating road 10.
This control setup 2 is controlled the operation of elevators 1, and comprises abnormity detection portion 20, operation control part 21 and data sheet 22 at this.
The operation that abnormity detection portion 20 detects the elevator 1 that comprises earthquake stops unusual, control unusual of devices needed.Operation control part 21 is being detected by abnormity detection portion 20 when unusual, and control setting is in the action of the brake equipment 18a～18e at each position of elevator 1.In data sheet 22, store the alphabetic data that is used to make these brake equipments 18a～18e sequentially-operating.Operation control part 21 makes each brake equipment 18a～18e according to predetermined sequentially-operating with reference to this data sheet 22.
Below, for a plurality of brake equipment 18a～18e that are arranged at this elevator 1 are moved control situation describe.In addition, the processing shown in following each diagram of circuit is read preset program by the control setup 2 as computing machine and is carried out.
Fig. 2 is the diagram of circuit of the processing action of the control setup 2 in this embodiment of expression." brake equipment A " among the figure, " brake equipment B ", " brake equipment C ", " brake equipment D ", " brake equipment E " are corresponding with brake equipment 18a～18e of Fig. 1.
When being detected unusual that the operation that need carry out elevator 1 stops by abnormity detection portion 20, operation control part 21 is based on the alphabetic data that is stored in the data sheet 22, as described as follows brake equipment 18a～18e moved control.
That is, at first, the brake equipment 18a that 21 pairs of operation control part are arranged at towing machine 11 sends action command, makes this brake equipment 18a action (step S101, S102).
Next, the brake equipment 18b that 21 pairs of operation control part are arranged at traction sheave 12 sends action command, makes this brake equipment 18b action (step S103, S104).
The back is same, brake equipment 18c, the brake equipment 18d that is arranged at car 14, the brake equipment 18e that is arranged at balance weight 15 that 21 pairs of operation control part are arranged at main horseline 13 stagger respectively and periodically send action command, make these brake equipments 18c～18e sequentially-operating (step S105～S110).
Here, as the order that makes each brake equipment 18a～18e action, as described in following 3.
(1) begins sequentially-operating near the brake equipment that is arranged at the towing machine.
(2) since short brake equipment sequentially-operating opening time.
(3) wait the lower brake equipment of consumption characteristics to begin sequentially-operating from wearing and tearing.
About above-mentioned (1), because distance is near more as the towing machine of drive source, the effect of braking force is high more.About above-mentioned (2), because opening time is according to the kind of brake equipment and difference, so the brake equipment sequentially-operating of lacking since opening time is more effective.About above-mentioned (3), because consumption characteristics such as wearing and tearing is according to the kind of brake equipment and difference can be cut down maintenance times so begin sequentially-operating from the lower brake equipment of consumption characteristics.
In data sheet 22, store the data of at least 1 above-mentioned 3 order of expression.In the embodiment of Fig. 2, be that alphabetic data with above-mentioned (1) is stored in the situation in the data sheet 22.In addition, with the action of preset time intervening sequences, finally all brake equipment 18a～18e become operating state to each brake equipment 18a～18e respectively.
Like this, not simultaneously but the periodically sequentially-operating that staggers respectively, the interim ground of the braking force of each brake equipment 18a～18e can be applied to elevator 1 by making each brake equipment 18a～18e.Thus, compare when each brake equipment 18a～18e is moved simultaneously, the deceleration/decel when stopping to be descended.Its result can not produce bigger vibration, noise, can be smoothly the operation of elevator 1 be stopped.
In addition, these brake equipments 18a～18e is not arranged at same area, and is arranged at different parts respectively.Therefore, even wherein certain produces fault, also can reliably the operation of elevator 1 be stopped by other the braking force of brake equipment.And then the life-span of brake equipment 18a～18e is also different, so also do not need because time deterioration and the same time is changed these brake equipments.
(the 2nd embodiment)
Next, the 2nd embodiment of the present invention is described.
In the 2nd embodiment, the speed that adds car 14 comes each brake equipment 18a～18e is moved control.
Fig. 3 is the integrally-built figure of the related elevator control device of expression the 2nd embodiment of the present invention.In addition, give same-sign, its explanation is omitted for the part identical with the structure of Fig. 1 in above-mentioned the 1st embodiment.
In the 2nd embodiment, on regulating control (governor) 16, be provided with speed detector 23.This speed detector 23 is from the speed of the revolution speed calculating car 14 of regulating control 16, to operation control part 21 outputs of control setup 2.By operation control part 21,, the brake equipment 18a～18e at each position of being arranged at elevator 1 is moved control based on speed from the car 14 of these regulating control 16 gained.
Fig. 4 is the figure of the timer-operated relation of action of the expression speed of car 14 and brake equipment 18a～18e, and transverse axis is represented elapsed time of counting unusually from detecting, and the longitudinal axis is represented the speed of car 14." brake equipment A " among the figure, " brake equipment B ", " brake equipment C ", " brake equipment D ", " brake equipment E " are corresponding with brake equipment 18a～18e of Fig. 3.In addition, Va, Vb, Vc, Vd are the setting values of speed, Va〉Vb〉Vc〉Vd.
Below, describe for the action of the 2nd embodiment.
Fig. 5 is the diagram of circuit of the processing action of the control setup 2 in this embodiment of expression." brake equipment A " among the figure, " brake equipment B ", " brake equipment C ", " brake equipment D ", " brake equipment E " are corresponding with brake equipment 18a～18e of Fig. 3.
When the abnormity detection portion 20 by control setup 2 detected unusual that the operation that need carry out elevator 1 stops, operation control part 21 was based on the alphabetic data that is stored in the data sheet 22, as described as follows each brake equipment 18a～18e moved control.
That is, at first, the brake equipment 18a that 21 pairs of operation control part are arranged at towing machine 11 sends action command, makes this brake equipment 18a action (step S201, S202).In data sheet 22,, preestablish the speed data when each brake equipment 18a～18e is moved here, with the alphabetic data that is used to make each brake equipment 18a～18e sequentially-operating.
Now, if set the speed data of Va～Vd shown in Figure 4, the speed of the car 14 that obtains after the action of brake equipment 18a, from speed detector 23 arrives the time point (step S203 is) of Va, 21 couples of brake equipment 18b of operation control part send action command, except brake equipment 18a, also make brake equipment 18b action (step S204, S205).
Next, the speed of the car 14 that obtains from speed detector 23 arrives the time point (step S206 is) of Vb, 21 couples of brake equipment 18c of operation control part send action command, except brake equipment 18a, 18b, also make brake equipment 18c action (step S207, S208).
Next, the speed of the car 14 that obtains from speed detector 23 arrives the time point (step S209 is) of Vc, 21 couples of brake equipment 18d of operation control part send action command, except brake equipment 18a～18c, also make brake equipment 18c action (step S210, S211).
Next, the speed of the car 14 that obtains from speed detector 23 arrives the time point (step S212 is) of Vd, 21 couples of brake equipment 18e of operation control part send action command, except brake equipment 18a～18d, also make brake equipment 18e action (step S213, S214).
Like this, according to the speed of car 14, make brake equipment 18a～18e sequentially-operating.Thus, same with above-mentioned the 1st embodiment, the deceleration/decel when stopping to be descended, suppress vibration, noise and smoothly the operation of elevator 1 is stopped.And then, by adding the speed of car 14, the braking force of brake equipment 18a～18e can be applied to elevator 1 effectively, thereby more smoothly the operation of elevator 1 is stopped.
(the 3rd embodiment)
Next, the 3rd embodiment of the present invention is described.
In the 3rd embodiment, when making each brake equipment 18a～18e, confirm operating state separately according to predetermined sequentially-operating, if having the brake equipment that does not move, apply action command to other all brake equipments at this time point.
Fig. 6 is the integrally-built figure of the related elevator control device of expression the 3rd embodiment of the present invention.In addition, give same-sign, its explanation is omitted for the part identical with the structure of Fig. 1 in above-mentioned the 1st embodiment.
In the 3rd embodiment, be provided with the 24a～24e of motion detection portion on separately at each brake equipment 18a～18e.
The 24a of motion detection portion detects the operating state of the brake equipment 18a that is arranged at towing machine 11, and its detection signal is exported to operation control part 21.The 24b of motion detection portion detects the operating state of the brake equipment 18b that is arranged at traction sheave 12, and its detection signal is exported to operation control part 21.The 24c of motion detection portion detects the operating state of the brake equipment 18c that is arranged at main horseline 13, and its detection signal is exported to operation control part 21.The 24d of motion detection portion detects the operating state of the brake equipment 18d that is arranged at car 14, and its detection signal is exported to operation control part 21.The 24e of motion detection portion detects the operating state of the brake equipment 18e that is arranged at balance weight 15, and its detection signal is exported to operation control part 21.
Below, describe for the action of the 3rd embodiment.
Fig. 7 is the diagram of circuit of the processing action of the control setup 2 in this embodiment of expression." brake equipment A " among the figure, " brake equipment B ", " brake equipment C ", " brake equipment D ", " brake equipment E " are corresponding with brake equipment 18a～18e of Fig. 6.
When the abnormity detection portion 20 by control setup 2 detected unusual that the operation that need carry out elevator 1 stops, operation control part 21 was based on the alphabetic data that is stored in the data sheet 22, as described as follows each brake equipment 18a～18e moved control.
That is, at first, the brake equipment 18a that 21 pairs of operation control part are arranged at towing machine 11 sends action command (step S301).Here, when not detecting the action of brake equipment 18a (step S302 not) by the 24a of motion detection portion, the all brake equipment output action instruction (step S311) of operation control part 21 beyond the brake equipment 18a makes them move (step S312) simultaneously.
When brake equipment 18a normally moves (step S302 is), the brake equipment 18b that 21 pairs of operation control part are arranged at traction sheave 12 sends action command (step S303).Here, when not detecting the action of brake equipment 18b (step S304 not) by the 24b of motion detection portion, the all brake equipment output action instruction (step S311) of operation control part 21 beyond the brake equipment 18b makes them move (step S312) simultaneously.
When brake equipment 18b normally moves (step S304 is), the brake equipment 18c that 21 pairs of operation control part are arranged at main horseline 13 sends action command (step S305).Here, when not detecting the action of brake equipment 18c (step S306 not) by the 24c of motion detection portion, the all brake equipment output action instruction (step S311) of operation control part 21 beyond the brake equipment 18c makes them move (step S312) simultaneously.For other brake equipment 18d, 18e (step S307～S310) too.
Like this, when when making a plurality of brake equipment 18a～18e sequentially-operating, detecting the brake equipment that does not carry out moving, other all brake equipments are moved simultaneously at this time point.Thus, even when certain produces fault therein, also can stop the operation of elevator 1 safely.
(the 4th embodiment)
Next, the 4th embodiment of the present invention is described.
In the 3rd embodiment, detect the brake equipment do not have regular event, but in the 4th embodiment, detect the brake equipment of misoperation and tackle.
In addition, same for the Fig. 6 in apparatus structure and above-mentioned the 3rd embodiment, here only describe handling action with reference to Fig. 8.
Fig. 8 is the diagram of circuit of the processing action of the control setup 2 in expression the 4th embodiment." brake equipment A " among the figure, " brake equipment B ", " brake equipment C ", " brake equipment D ", " brake equipment E " are corresponding with brake equipment 18a～18e of Fig. 6.
The operation control part 21 of control setup 2 monitors the operating state of brake equipment 18a～18e by the 24a of motion detection portion～24e.Here, when being detected the action of brake equipment 18a by the 24a of motion detection portion (step S401), operation control part 21 judges whether brake equipment 18a output action is being instructed (step S406).If not output action instruction (step S406 denys), operation control part 21 is judged as brake equipment 18a and produces fault, all brake equipment output action instructions (step S411) beyond the brake equipment 18a make them move (step S412) simultaneously.
In addition, when being detected the action of brake equipment 18b by the 24b of motion detection portion (step S402), operation control part 21 judges whether brake equipment 18b output action is being instructed (step S407).If not output action instruction (step S407 denys), operation control part 21 is judged as brake equipment 18b and produces fault, all brake equipment output action instructions (step S411) beyond the brake equipment 18b make them move (step S412) simultaneously.
In addition, when being detected the action of brake equipment 18c by the 24c of motion detection portion (step S403), operation control part 21 judges whether brake equipment 18c output action is being instructed (step S408).If not output action instruction (step S408 denys), operation control part 21 is judged as brake equipment 18c and produces fault, all brake equipment output action instructions (step S411) beyond the brake equipment 18c make them move (step S412) simultaneously.For other brake equipment 18d, 18e (step S404, S405, S409, S410) too.
Like this, during brake equipment misoperation outside action object, other all brake equipments are moved simultaneously.Thus, can avoid the unusual state of affairs that the misoperation by brake equipment causes and guarantee safety.
In addition, in the above-mentioned the 3rd and the 4th embodiment, be that prerequisite describes with the structure of above-mentioned the 1st embodiment, but can be applied to the structure of above-mentioned the 2nd embodiment equally.
In addition, as brake equipment, set in advance the position more than at least 2 arbitrarily in towing machine 11, traction sheave 12, main horseline 13, car 14, balance weight 15.And then, also can set in advance brake equipment at other position.
In addition, in the respective embodiments described above, for each brake equipment 18a～18e moved the situation of control being illustrated producing when unusual, but for the situation beyond producing when unusual too, as long as have the situation that the operation with elevator 1 stops, just can be suitable equally.
Importantly, the present invention not only is defined in the respective embodiments described above, the implementation phase in the scope that does not break away from its purport, can specialize to inscape distortion and with it.In addition, the suitable combination by the disclosed a plurality of inscapes of the respective embodiments described above can form variety of way.For example, also can from all inscapes shown in the embodiment, omit several inscapes.And then, also can be with the inscape appropriate combination in the different embodiments.
According to the present invention, move in different timings respectively by making a plurality of brake equipments, the deceleration/decel when stopping to be descended, thereby suppress the operation that vibration, noise stop elevator smoothly.
Claims (8)
1. an elevator control device is characterized in that, comprising:
Be arranged on a plurality of different positions, to a plurality of brake equipments of described each position brake activation power;
Store the data sheet portion of the alphabetic data that is used to make these brake equipment sequentially-operatings;
Detect the unusual abnormity detection portion of elevator; With
Detecting by this abnormity detection portion when unusual, according to predetermined order described each brake equipment moved the operation control part of control based on the alphabetic data that is stored in described data sheet portion.
2. elevator control device as claimed in claim 1 is characterized in that:
The speed test section that comprises the speed that detects car;
Described operation control part is based on the speed by the detected described car of described speed test section, according to predetermined order described each brake equipment moved control.
3. elevator control device as claimed in claim 1 or 2 is characterized in that:
The motion detection portion that comprises the operating state that detects described each brake equipment;
Described operation control part makes all brake equipment actions of removing this brake equipment when not detecting action as the brake equipment of action object by described motion detection portion.
4. elevator control device as claimed in claim 1 or 2 is characterized in that: during the action of the brake equipment of described operation control part detected action object by described motion detection portion beyond, make all brake equipment actions of removing this brake equipment.
5. elevator control device as claimed in claim 1 is characterized in that: described each brake equipment is arranged at the position more than at least 2 arbitrarily in towing machine, traction sheave, main horseline, car, the balance weight.
6. elevator control device as claimed in claim 1 is characterized in that: described operation control part begins to move in order control from the position that is provided with of described each brake equipment apart from the nearer brake equipment of towing machine.
7. elevator control device as claimed in claim 1 is characterized in that: described operation control part from opening time of described each brake equipment short brake equipment begin to move in order control.
8. elevator control device as claimed in claim 1 is characterized in that: described operation control part begins to move in order control from the lower brake equipment of the consumption characteristics of described each brake equipment.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP063014/2008 | 2008-03-12 | ||
| JP2008063014A JP2009215047A (en) | 2008-03-12 | 2008-03-12 | Control device for elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101531303A true CN101531303A (en) | 2009-09-16 |
| CN101531303B CN101531303B (en) | 2011-11-30 |
Family
ID=41102191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100075454A Expired - Fee Related CN101531303B (en) | 2008-03-12 | 2009-02-17 | Elevator control device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2009215047A (en) |
| CN (1) | CN101531303B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102056474A (en) * | 2009-11-10 | 2011-05-11 | Juki株式会社 | Component installation device |
| CN102933480A (en) * | 2010-01-18 | 2013-02-13 | 通力股份公司 | Method for monitoring the movement of an elevator car, and an elevator system |
| CN104891296A (en) * | 2014-03-04 | 2015-09-09 | 株式会社日立制作所 | Elevator device and control device thereof |
| CN105480809A (en) * | 2015-12-29 | 2016-04-13 | 上海新时达电气股份有限公司 | Test method for up overspeed protection device for elevator |
| CN112840141A (en) * | 2018-10-19 | 2021-05-25 | 三菱电机株式会社 | Elevator brake deterioration prediction system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106276460B (en) * | 2016-10-10 | 2018-12-11 | 杭州凌萤科技有限公司 | A kind of robot device for overhauling elevator |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49111347A (en) * | 1973-02-27 | 1974-10-23 | ||
| JPH0543150A (en) * | 1991-08-20 | 1993-02-23 | Hitachi Ltd | Elevator |
| JPH09221285A (en) * | 1996-02-16 | 1997-08-26 | Mitsubishi Electric Corp | Safety device for elevator |
| DE19906073C2 (en) * | 1999-02-12 | 2003-03-27 | Inventio Ag | Device for preventing uncontrolled accelerations of a car in an elevator installation |
| DE10018887B4 (en) * | 2000-04-14 | 2005-02-10 | Kone Corp. | Method and device for controlling the brake (s) of a passenger conveyor system |
| JP3733835B2 (en) * | 2000-05-26 | 2006-01-11 | 松下電工株式会社 | Elevator remote monitoring system |
| JP2002060157A (en) * | 2000-08-22 | 2002-02-26 | Mitsubishi Electric Building Techno Service Co Ltd | Speed governor for elevator |
| JP2007084177A (en) * | 2005-09-20 | 2007-04-05 | Toshiba Elevator Co Ltd | Control system of elevator |
| EP1939125B1 (en) * | 2005-10-17 | 2015-03-11 | Mitsubishi Denki Kabushiki Kaisha | Elevator device |
-
2008
- 2008-03-12 JP JP2008063014A patent/JP2009215047A/en active Pending
-
2009
- 2009-02-17 CN CN2009100075454A patent/CN101531303B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102056474A (en) * | 2009-11-10 | 2011-05-11 | Juki株式会社 | Component installation device |
| CN102056474B (en) * | 2009-11-10 | 2015-04-15 | Juki株式会社 | Component installation device |
| CN102933480A (en) * | 2010-01-18 | 2013-02-13 | 通力股份公司 | Method for monitoring the movement of an elevator car, and an elevator system |
| CN102933480B (en) * | 2010-01-18 | 2015-09-30 | 通力股份公司 | For monitoring method and the elevator device of the motion of lift car |
| CN104891296A (en) * | 2014-03-04 | 2015-09-09 | 株式会社日立制作所 | Elevator device and control device thereof |
| CN104891296B (en) * | 2014-03-04 | 2017-08-04 | 株式会社日立制作所 | Lift facility and its control device |
| CN105480809A (en) * | 2015-12-29 | 2016-04-13 | 上海新时达电气股份有限公司 | Test method for up overspeed protection device for elevator |
| CN105480809B (en) * | 2015-12-29 | 2018-09-21 | 上海新时达电气股份有限公司 | The test method of protection device for over-speed ascending for elevator |
| CN112840141A (en) * | 2018-10-19 | 2021-05-25 | 三菱电机株式会社 | Elevator brake deterioration prediction system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101531303B (en) | 2011-11-30 |
| JP2009215047A (en) | 2009-09-24 |
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Granted publication date: 20111130 Termination date: 20140217 |