CN105712144B - A kind of elevator hall's car door lock detection means - Google Patents
A kind of elevator hall's car door lock detection means Download PDFInfo
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- CN105712144B CN105712144B CN201610194506.XA CN201610194506A CN105712144B CN 105712144 B CN105712144 B CN 105712144B CN 201610194506 A CN201610194506 A CN 201610194506A CN 105712144 B CN105712144 B CN 105712144B
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- door lock
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- hall
- collection terminal
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- 238000001514 detection method Methods 0.000 title claims abstract description 50
- 230000009471 action Effects 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 9
- 238000011897 real-time detection Methods 0.000 abstract description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 101150048279 KMS1 gene Proteins 0.000 description 1
- 101150104867 KMS2 gene Proteins 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Elevator Door Apparatuses (AREA)
Abstract
The invention discloses a kind of elevator hall's car door lock detection means.It includes control module and the detection module being connected with each other, detection module is accessed in the operating circuit of elevator, detection module has the be connected with elevator safety circuit first collection terminal, the second collection terminal being connected with hall door lock circuit and the 3rd collection terminal being connected with gate lock circuit, the signal that three signal acquisition terminals collect is transferred to control module by detection module, and the signal that control module gathers according to detection module judges the working condition of elevator hall's door lock and car door lock.Elevator safety circuit, hall door lock circuit and gate lock circuit can be detected in real time respectively by detection module, realize hall door lock and the real-time detection of car door lock working condition of elevator, Room gate short circuit failure can be detected in time, it effectively prevent the appearance of potential safety hazard, the security that elevator uses is ensure that, facilitates the maintenance of maintenance personal.
Description
Technical field
The present invention relates to elevator technology field, especially a kind of elevator hall's car door lock detection means.
Background technology
At present, elevator can occur the situation that hall door is locked or car door lock is shorted for various reasons in normal operation.By
In the uncertainty for the generation that hall door lock or car door lock are shorted so that the appearance that hall door is locked or car door lock is shorted can not be estimated
Or judge.A series of security incident can be caused during generation, and due to can not accurately differentiate that hall door lock or car door lock are shorted
Concrete condition, to bringing very big inconvenience during maintenance of the maintenance personal to the later stage of elevator.Simultaneously because loop of the door lock
Converted by auxiliary reclay, the reliability of whole circuit can reduce.
The content of the invention
In view of this, the invention aims to overcome prior art the defects of, there is provided a kind of to improve elevator
Hall door is locked and car door lock job security and the elevator hall's car door lock detection means for facilitating elevator maintenance maintenance.
To reach above-mentioned purpose, the present invention provides a kind of elevator hall's car door lock detection means, and it includes the control being connected with each other
Molding block and detection module, in the operating circuit of elevator, the operating circuit includes elevator safety for the detection module access
Circuit, Room gate lock circuit and advance door opening module, the elevator safety circuit are connected with advance door opening module, the Room sedan-chair
Door lock circuit includes the gate lock circuit and hall door lock circuit that are sequentially connected in series, the gate lock circuit respectively with elevator safety circuit
It is connected with one end of advance door opening module, the hall door lock circuit is connected with the other end of advance door opening module, the detection mould
Block has three signal acquisition terminals, and described three signal acquisition terminals are respectively that first be connected with elevator safety circuit is adopted
What collection terminal, second be connected with hall door lock circuit gathered terminal and be connected with gate lock circuit the 3rd gathers terminal, and described the
One collection terminal can gather the short circuit signal of elevator safety circuit, and the second collection terminal can gather hall door lock circuit
Short circuit signal, the 3rd collection terminal can gather the short circuit signal of gate lock circuit, and the detection module is by three signals
The signal that collection terminal collects is transferred to control module, and the signal that the control module gathers according to detection module judges elevator
Hall door is locked and the working condition of car door lock.
Locked specifically, the hall door lock circuit includes n hall door, n >=1, n are the number of floor levels of elevator, n hall door lock and electricity
The hall door of ladder corresponds, and elevator hall's car door lock detection means also includes the snap shot acquisition module being connected with control module,
The working condition of each hall door lock is detected in the snap shot acquisition module access hall door lock circuit, the snap shot acquisition module includes
N acquisition module, n acquisition module connect one to one successively with n hall door lock.
Preferably, the snap shot acquisition module is connected by communication signal circuit with control module.
Preferably, the detection module and snap shot acquisition module carry out signal acquisition by 110V AC-powered.
Specifically, the control module can judge elevator hall's gate lock status according to the signal that detection module gathers,
Elevator hall's door lock and car door lock are under normal operating conditions, and when elevator dock floor, the advance door opening module action enters
Row closure door lock, it is high level that the first collection terminal, which collects elevator safety circuit, and the second collection terminal collects hall door lock circuit
For high level, it is low level that the 3rd collection terminal, which collects gate lock circuit,；When gate opens the door in place, advance door opening module is released
Put, it is high level that the first collection terminal, which collects elevator safety circuit, and it is low electricity that the second collection terminal, which collects hall door lock circuit,
Flat, it is low level that the 3rd collection terminal, which collects gate lock circuit,；
In elevator hall, door lock is shorted and car door lock is under normal operating conditions, described to carry when elevator dock floor
Button fly front module action carries out closure door lock, and it is high level that the first collection terminal, which collects elevator safety circuit, and second gathers terminal
It is high level to collect hall door lock circuit, and it is high level that the 3rd collection terminal, which collects gate lock circuit,；When gate opens the door in place
When, the release of advance door opening module, it is high level that the first collection terminal, which collects elevator safety circuit, and the second collection terminal collects
Hall door lock circuit is low level, and it is low level that the 3rd collection terminal, which collects gate lock circuit,；
It is described to carry when elevator dock floor in the case where elevator cage door lock is shorted and hall door lock is in normal operating conditions
Button fly front module action carries out closure door lock, and it is high level that the first collection terminal, which collects elevator safety circuit, and second gathers terminal
It is high level to collect hall door lock circuit, and it is high level that the 3rd collection terminal, which collects gate lock circuit,；When gate opens the door in place
When, the release of advance door opening module, it is high level that the first collection terminal, which collects elevator safety circuit, and the second collection terminal collects
Hall door lock circuit is low level, and it is high level that the 3rd collection terminal, which collects gate lock circuit,；
In the state of elevator cage door lock and hall door lock are shorted, when elevator dock floor, the advance door opening mould
Block action carries out closure door lock, and it is high level that the first collection terminal, which collects elevator safety circuit, and the second collection terminal collects the Room
Door lock circuit is high level, and it is high level that the 3rd collection terminal, which collects gate lock circuit,；When gate opens the door in place, open in advance
Door module release, it is high level that the first collection terminal, which collects elevator safety circuit, and the second collection terminal collects hall door lock electricity
Road is high level, and it is high level that the 3rd collection terminal, which collects gate lock circuit,.
Further, it is described when control module is judged to have hall door lock to be shorted according to the collection signal of detection module
The state of the hall door opened/closed for each layer elevator that control module can collect according to snap shot acquisition module, judge to determine quilt
The position of the hall door lock of short circuit.
Compared to prior art, car door lock detection means in elevator hall's of the present invention has advantages below：
Elevator safety circuit, hall door lock circuit and gate lock circuit can be examined in real time respectively by detection module
Survey, and the hall door lock of elevator and the working condition of car door lock are judged by control module, realize the hall door lock and car door lock of elevator
The real-time detection of working condition, Room gate short circuit failure can be detected in time, effectively prevent the appearance of potential safety hazard, protect
The security that elevator uses is demonstrate,proved.Maintenance personal can be according to the hall door lock and gate that elevator hall's car door lock detection means detects
The short circuit situation of lock, elevator is accurately repaired, facilitates the maintenance of maintenance personal.
Brief description of the drawings
Fig. 1 is a kind of operating circuit schematic diagram of elevator hall's car door lock detection means of the present invention；
Wherein, 1, control module；2nd, detection module；3rd, snap shot acquisition module；4th, acquisition module；10th, elevator safety circuit；
20th, Room gate circuit；21st, the first collection terminal；22nd, the second collection terminal；23rd, the 3rd collection terminal；30th, advance door opening mould
Block；40th, gate lock circuit；50th, hall door lock circuit；100th, operating circuit.
Embodiment
The embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
Please be as shown in figure 1, a kind of elevator hall's car door lock detection means of the present invention includes the control mould being connected with each other
Block 1, detection module 2 and snap shot acquisition module 3.The detection module 2 is accessed in the operating circuit 100 of elevator, the work
Circuit 100 includes elevator safety circuit 10, Room gate lock circuit 20 and advance door opening module 30.The elevator safety circuit 10
It is connected with advance door opening module 30, the Room gate lock circuit 20 includes the gate lock circuit 40 and hall door lock circuit being sequentially connected in series
50.The one end of the gate lock circuit 40 respectively with elevator safety circuit 10 and advance door opening module 30 is connected, the hall door lock
Circuit 50 is connected with the other end of advance door opening module 30.The detection module 2 has three signal acquisition terminals, and described three
Individual signal acquisition terminal is respectively the first collection terminal 21 being connected with elevator safety circuit 10, is connected with hall door lock circuit 50
Second collection terminal 22 and the 3rd collection terminal 23 being connected with gate lock circuit 40, the first collection terminal 21 can gather
The short circuit signal of elevator safety circuit 10, the second collection terminal 22 can gather the short circuit signal of hall door lock circuit 50, institute
The short circuit signal of gate lock circuit 40 can be gathered by stating the 3rd collection terminal 23.The detection module 2 is by three signal acquisition terminals
The signal that son collects carries out isolation processing, operation amplifier, and feedback transmission is to control module 1.The control module 1 is according to inspection
Survey the working condition that the signal that module 2 gathers judges elevator hall's door lock and car door lock.
The hall door lock circuit 50 includes n hall door and locked, and n >=1, n are the number of floor levels of elevator, n hall door lock and elevator
Hall door corresponds.N hall door lock is followed successively by the first hall door lock KMS1, the second hall door lock KMS2 ... n-th hall door locks KMSn.It is described
Snap shot acquisition module 3 accesses in hall door lock circuit 50 working condition for detecting each hall door lock, and the snap shot acquisition module 3 includes
N acquisition module 4, n acquisition module 4 are followed successively by the first acquisition module Add：1st, the second acquisition module Add：2nd ... N is gathered
Modules A dd：N.N acquisition module 4 connects one to one successively with n hall door lock.The snap shot acquisition module 3 is believed by communicating
Number circuit is connected with control module 1.The detection module 2 and snap shot acquisition module 3 are carried out by 110V AC-powered
Signal acquisition.
The control module 1 can judge elevator hall's gate lock status according to the signal that detection module 2 gathers, in elevator hall
Door lock and car door lock are under normal operating conditions, and when elevator dock floor, the action of advance door opening module 30 is sealed
Door lock, it is high level that the first collection terminal 21, which collects elevator safety circuit 10, and the second collection terminal 22 collects hall door lock electricity
Road 50 is high level, and it is low level that the 3rd collection terminal 23, which collects gate lock circuit 40,；When gate opens the door in place, open in advance
Door module 30 discharges, and it is high level that the first collection terminal 21, which collects elevator safety circuit 10, and the second collection terminal 21 collects
Hall door lock circuit 50 is low level, and it is low level that the 3rd collection terminal 23, which collects gate lock circuit 40,；
In elevator hall, door lock is shorted and car door lock is under normal operating conditions, described to carry when elevator dock floor
The action of button fly front module 30 carries out closure door lock, and it is high level that the first collection terminal 21, which collects elevator safety circuit 10, and second adopts
Integrate terminal 22 and collect hall door lock circuit 50 as high level, it is high level that the 3rd collection terminal 23, which collects gate lock circuit 40,；
When gate opens the door in place, advance door opening module 30 discharges, and the first collection terminal 21 collects elevator safety circuit 10 as high electricity
Flat, it is low level that the second collection terminal 22, which collects hall door lock circuit 50, and the 3rd collection terminal 23 collects gate lock circuit 40
For low level；
It is described to carry when elevator dock floor in the case where elevator cage door lock is shorted and hall door lock is in normal operating conditions
The action of button fly front module 30 carries out closure door lock, and it is high level that the first collection terminal 21, which collects elevator safety circuit 10, and second adopts
Integrate terminal 22 and collect hall door lock circuit 50 as high level, it is high level that the 3rd collection terminal 23, which collects gate lock circuit 40,；
When gate opens the door in place, advance door opening module 30 discharges, and the first collection terminal 21 collects elevator safety circuit 10 as high electricity
Flat, it is low level that the second collection terminal 22, which collects hall door lock circuit 50, and the 3rd collection terminal 23 collects gate lock circuit 40
For high level；
In the state of elevator cage door lock and hall door lock are shorted, when elevator dock floor, the advance door opening mould
The action of block 30 carries out closure door lock, and it is high level that the first collection terminal 21, which collects elevator safety circuit 10, and second gathers terminal 22
It is high level to collect hall door lock circuit 50, and it is high level that the 3rd collection terminal 23, which collects gate lock circuit 40,；When gate is opened
Door in place when, advance door opening module 30 discharges, and to collect elevator safety circuit 10 be high level to the first collection terminal 21, and second adopts
Integrate terminal 22 and collect hall door lock circuit 50 as high level, it is high level that the 3rd collection terminal 23, which collects gate lock circuit 40,.
When control module 1 is judged to have hall door lock to be shorted according to the collection signal of detection module 2, the control module
The state of the hall door opened/closed of the 1 each layer elevator that can be collected according to snap shot acquisition module 3, judge to determine what is be shorted
The position of hall door lock.
When car door lock or hall door lock short circuit occurs, control module 1 controls elevator to forbid running, and reports the event of door lock short circuit
Barrier, efficiently prevents Room car door lock short circuit potential safety hazard in time.Snap shot sampling module 3 gathers the hall door lock shape of each floor simultaneously
State, via conversion processing and carry out communication with control module 1 and dock, every layer of hall door closed condition of real-time judge.When there is a hall door therefore
When barrier or short circuit, the floor specifically to break down can be directly judged, inquire about failure code and failure logging, efficient quick
Complete trouble unit reparation, maintained for the elevator later stage provide it is very big convenient.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention, all according to the present invention
The equivalent change or modification that Spirit Essence is made, it should all be included within the scope of the present invention.
Claims (6)
- A kind of 1. elevator hall's car door lock detection means, it is characterised in that：Control module including interconnection（1）And detection module （2）, the detection module（2）Access the operating circuit in elevator（100）In, the operating circuit（100）Including elevator safety Circuit（10）, Room gate lock circuit（20）And advance door opening module（30）, the elevator safety circuit（10）With advance door opening Module（30）Connection, the Room gate lock circuit（20）Including the gate lock circuit being sequentially connected in series（40）With hall door lock circuit （50）, the gate lock circuit（40）Respectively with elevator safety circuit（10）With advance door opening module（30）One end be connected, institute State hall door lock circuit（50）With advance door opening module（30）The other end be connected, the detection module（2）Adopted with three signals Collect terminal, described three signal acquisition terminals are respectively and elevator safety circuit（10）First collection terminal of connection（21）、 With hall door lock circuit（50）Second collection terminal of connection（22）With with gate lock circuit（40）3rd collection terminal of connection （23）, the first collection terminal（21）Elevator safety circuit can be gathered（10）Short circuit signal, it is described second collection terminal （22）Hall door lock circuit can be gathered（50）Short circuit signal, it is described 3rd collection terminal（23）Gate lock circuit can be gathered （40）Short circuit signal, the detection module（2）The signal that three signal acquisition terminals collect is transferred to control module （1）, the control module（1）According to detection module（2）The signal of collection judges the working condition of elevator hall's door lock and car door lock.
- A kind of 2. elevator hall's car door lock detection means according to claim 1, it is characterised in that：The hall door lock circuit （50）Locked including n hall door, n >=1, n are the number of floor levels of elevator, and the hall door of n hall door lock and elevator corresponds, the elevator Room car door lock detection means also includes and control module（1）The snap shot acquisition module of connection（3）, the snap shot acquisition module（3） Access hall door lock circuit（50）The working condition of the middle each hall door lock of detection, the snap shot acquisition module（3）Including n collection mould Block（4）, n acquisition module（4）Connected one to one successively with n hall door lock.
- A kind of 3. elevator hall's car door lock detection means according to claim 2, it is characterised in that：The snap shot acquisition module （3）Pass through communication signal circuit and control module（1）Connection.
- A kind of 4. elevator hall's car door lock detection means according to claim 2, it is characterised in that：The detection module（2） With snap shot acquisition module（3）Signal acquisition is carried out by 110V AC-powered.
- A kind of 5. elevator hall's car door lock detection means according to claim 2, it is characterised in that：The control module（1） Can be according to detection module（2）The signal of collection judges elevator hall's gate lock status, and in elevator hall, door lock and car door lock are in just Under normal working condition, when elevator dock floor, the advance door opening module（30）Action carries out closure door lock, the first collection terminal （21）Collect elevator safety circuit（10）For high level, the second collection terminal（22）Collect hall door lock circuit（50）For high electricity It is flat, the 3rd collection terminal（23）Collect gate lock circuit（40）For low level；When gate opens the door in place, advance door opening module （30）Release, the first collection terminal（21）Collect elevator safety circuit（10）For high level, the second collection terminal（21）Collection To hall door lock circuit（50）For low level, the 3rd collection terminal（23）Collect gate lock circuit（40）For low level；In elevator hall, door lock is shorted and car door lock is under normal operating conditions, described to open in advance when elevator dock floor Door module（30）Action carries out closure door lock, the first collection terminal（21）Collect elevator safety circuit（10）For high level, second Gather terminal（22）Collect hall door lock circuit（50）For high level, the 3rd collection terminal（23）Collect gate lock circuit（40） For high level；When gate opens the door in place, advance door opening module（30）Release, the first collection terminal（21）Collect elevator safety Circuit（10）For high level, the second collection terminal（22）Collect hall door lock circuit（50）For low level, the 3rd collection terminal （23）Collect gate lock circuit（40）For low level；It is described to open in advance when elevator dock floor in the case where elevator cage door lock is shorted and hall door lock is in normal operating conditions Door module（30）Action carries out closure door lock, the first collection terminal（21）Collect elevator safety circuit（10）For high level, second Gather terminal（22）Collect hall door lock circuit（50）For high level, the 3rd collection terminal（23）Collect gate lock circuit（40） For high level；When gate opens the door in place, advance door opening module（30）Release, the first collection terminal（21）Collect elevator safety Circuit（10）For high level, the second collection terminal（22）Collect hall door lock circuit（50）For low level, the 3rd collection terminal （23）Collect gate lock circuit（40）For high level；In the state of elevator cage door lock and hall door lock are shorted, when elevator dock floor, the advance door opening module （30）Action carries out closure door lock, the first collection terminal（21）Collect elevator safety circuit（10）For high level, the second collection terminal Son（22）Collect hall door lock circuit（50）For high level, the 3rd collection terminal（23）Collect gate lock circuit（40）For high electricity It is flat；When gate opens the door in place, advance door opening module（30）Release, the first collection terminal（21）Collect elevator safety circuit （10）For high level, the second collection terminal（22）Collect hall door lock circuit（50）For high level, the 3rd collection terminal（23）Adopt Collect gate lock circuit（40）For high level.
- A kind of 6. elevator hall's car door lock detection means according to claim 5, it is characterised in that：Work as control module（1）Root According to detection module（2）Collection signal when judging to have the hall door lock be shorted, the control module（1）It can be gathered according to snap shot Module（3）The state of the hall door opened/closed of each layer elevator collected, judge to determine the position that the hall door being shorted is locked.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610194506.XA CN105712144B (en) | 2016-03-31 | 2016-03-31 | A kind of elevator hall's car door lock detection means |
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| CN201610194506.XA CN105712144B (en) | 2016-03-31 | 2016-03-31 | A kind of elevator hall's car door lock detection means |
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| CN105712144A CN105712144A (en) | 2016-06-29 |
| CN105712144B true CN105712144B (en) | 2018-02-09 |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106744112B (en) * | 2016-12-27 | 2022-09-09 | 快意电梯股份有限公司 | Detection circuit and detection method for short circuit of elevator door lock loop |
| CN106829670B (en) * | 2017-02-28 | 2019-01-29 | 深圳市海浦蒙特科技有限公司 | Door lock of elevator detection method and system |
| CN107055239B (en) * | 2017-02-28 | 2018-12-04 | 深圳市海浦蒙特科技有限公司 | Door lock of elevator detection method and system |
| CN106927328A (en) * | 2017-04-25 | 2017-07-07 | 宁波宏大电梯有限公司 | A kind of anti-short circuit detection of elevator belt loop of the door lock and control device and correlation method |
| CN107265226B (en) * | 2017-07-13 | 2022-10-11 | 上海辰竹仪表有限公司 | Circuit safety detection device applied to explosion-proof elevator door lock |
| CN108328446B (en) * | 2018-04-02 | 2023-06-13 | 江苏省特种设备安全监督检验研究院 | Elevator door loop detection device |
| CN109081215B (en) * | 2018-11-06 | 2019-11-19 | 广州绰立科技有限公司 | Door lock of elevator is shorted detection method and system |
| CN109353923B (en) * | 2018-11-15 | 2024-05-17 | 广东省特种设备检测研究院珠海检测院 | Elevator layer door lock short circuit detects and positioner |
| CN109335908A (en) * | 2018-11-15 | 2019-02-15 | 广东省特种设备检测研究院珠海检测院 | A kind of elevator landing door lock is shorted detection and localization method |
| CN110723627A (en) * | 2019-09-30 | 2020-01-24 | 苏州汇川技术有限公司 | Elevator safe operation method, system, equipment, storage medium and electronic device |
| CN113460823B (en) * | 2020-03-31 | 2022-12-27 | 苏州汇川技术有限公司 | Door lock short-circuit fault diagnosis system, method, equipment and storage medium |
| CN112125081B (en) * | 2020-08-14 | 2022-04-26 | 汕头大学 | Automatic detection method and system for elevator landing door |
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| ES2050185T3 (en) * | 1988-08-23 | 1994-05-16 | Inventio Ag | PROCEDURE AND DEVICE FOR THE CREATION OF A LIFT BOX INFORMATION. |
| JP4777511B2 (en) * | 2000-12-26 | 2011-09-21 | 三菱電機株式会社 | Man conveyor safety device motion detection device |
| JP4342907B2 (en) * | 2003-10-30 | 2009-10-14 | 三菱電機株式会社 | Elevator stop entrance prevention device |
| JP2011195205A (en) * | 2010-03-17 | 2011-10-06 | Toshiba Elevator Co Ltd | Safety circuit for elevator |
| JP2011256026A (en) * | 2010-06-10 | 2011-12-22 | Toshiba Elevator Co Ltd | Monitoring system of passenger conveyor |
| CN205555768U (en) * | 2016-03-31 | 2016-09-07 | 江南嘉捷电梯股份有限公司 | Elevator room sedan -chair lock detection device |
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