CN110861986B - Elevator shaft cable detection method and device - Google Patents
Elevator shaft cable detection method and device Download PDFInfo
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- CN110861986B CN110861986B CN201810989509.1A CN201810989509A CN110861986B CN 110861986 B CN110861986 B CN 110861986B CN 201810989509 A CN201810989509 A CN 201810989509A CN 110861986 B CN110861986 B CN 110861986B
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- elevator
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- 238000001514 detection method Methods 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 claims abstract description 35
- 238000004590 computer program Methods 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
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- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
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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
-
- 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
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
Abstract
The present disclosure relates to a method of hoistway cable detection, providing an auxiliary endpoint on each hoistway, the auxiliary endpoint being for detecting an electrical signal of the hoistway; judging whether the electric signal of each elevator hoistway meets logic detection of disconnection of the elevator hoistway cable; if the electrical signal of each elevator hoistway does not meet the logic detection of the disconnection of the elevator hoistway cable, the elevator hoistway cable is judged to be detected normally. The method aims at improving the quality of the elevator well cable, rapidly and efficiently detecting the well cable, ensuring zero error of the elevator well cable and having high efficiency and usability of application. The present disclosure also relates to an elevator hoistway cable detection device.
Description
Technical Field
The invention relates to the technical field of detection, in particular to a method and a device for detecting a cable in an elevator hoistway.
Background
As is known, with the development of urban China, the number of elevators used has been drastically increased, and elevator safety has also become a focus of attention. Many elevator accidents continue to occur each year, with a significant number of accidents being caused by elevator shaft faults. The detection of elevator hoistway cables has become an important issue to be addressed.
Disclosure of Invention
Based on this, it is necessary to provide a hoistway cable detection method and apparatus for solving the problems of the conventional art. In particular, the invention aims to improve the quality of the elevator well cable, rapidly and efficiently detect the well cable, ensure zero error of the elevator well cable and have high efficiency and usability of application.
In a first aspect, an embodiment of the present invention provides a method for detecting a hoistway cable, the method including: providing an auxiliary endpoint on each elevator hoistway, the auxiliary endpoint for detecting an electrical signal of the elevator hoistway; determining whether the electrical signal of each hoistway satisfies a logical detection of a hoistway cable disconnect; and if the electric signal of each elevator hoistway does not meet the logic detection of the elevator hoistway cable disconnection, judging that the elevator hoistway cable detection is normal.
In one embodiment, the method further comprises: detecting the wiring of the branch cables which are cut off in the middle of each elevator shaft cable and are connected in parallel with the corresponding branch cables; judging whether the wiring of each branch cable is correct or not; if the wiring of the branch cable is correct, the corresponding indicator lamp is in a lighting state, and if the wiring of the branch cable is wrong, the corresponding indicator lamp is not in a lighting state.
In one embodiment, the method further comprises: if the detected wire core of the branch cable is disconnected or the detected wire core of the branch cable is misplaced with the other wire core wires, the corresponding indicator lamp is not in a lighting state.
In one embodiment, the logic to determine whether the electrical signal of each hoistway satisfies a hoistway cable disconnect comprises: judging whether the first input point of the PLC receives the electric signal for detecting the elevator well or not; and when no output signal appears at the first PLC output point corresponding to the first PLC input point, judging that the elevator well cable is in a disconnection state.
In one embodiment, the logic to determine whether the electrical signal of each hoistway satisfies a hoistway cable disconnect comprises: judging whether the first input point of the PLC receives the electric signal for detecting the elevator well or not; when an output signal appears at a first PLC output point corresponding to the first PLC input point, the first signal lamp is in a lighting state.
In one embodiment, the logic to determine whether the electrical signal of each hoistway satisfies a hoistway cable disconnect comprises: judging whether the electrical signal for detecting the elevator shaft is received by a PLC second input point when the first signal lamp is in a lighting state; and if the second input point of the PLC does not receive the electric signal for detecting the elevator well, judging that the elevator well cable is in a disconnected state.
In one embodiment, the logic to determine whether the electrical signal of each hoistway satisfies a hoistway cable disconnect comprises: judging whether the electrical signal for detecting the elevator shaft is received by a PLC second input point when the first signal lamp is in a lighting state; and when an output signal appears at a PLC second output point corresponding to the PLC second input point, the second signal lamp is in a lighting state.
In a second aspect, an embodiment of the present invention provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the hoistway cable detection method of the first aspect described above.
In a third aspect, embodiments of the present invention provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the first aspect described above.
In a fourth aspect, an embodiment of the present invention further provides an elevator hoistway cable detection apparatus, the apparatus including: a setting module for setting an auxiliary endpoint on each elevator hoistway, the auxiliary endpoint for detecting an electrical signal of the elevator hoistway; the judging module is used for judging whether the electric signal of each elevator hoistway meets logic detection of disconnection of an elevator hoistway cable or not; and the detection judging module is used for judging that the elevator shaft cable detection is normal if the electric signal of each elevator shaft does not meet the logic detection of the elevator shaft cable disconnection.
The invention provides a method and a device for detecting elevator shaft cables, wherein auxiliary endpoints are arranged on each elevator shaft and used for detecting electric signals of the elevator shaft; judging whether the electric signal of each elevator hoistway meets logic detection of disconnection of the elevator hoistway cable; if the electrical signal of each elevator hoistway does not meet the logic detection of the disconnection of the elevator hoistway cable, the elevator hoistway cable is judged to be detected normally. The method aims at improving the quality of the elevator well cable, rapidly and efficiently detecting the well cable, ensuring zero error of the elevator well cable and having high efficiency and usability of application.
Drawings
Fig. 1 is a schematic flow chart of steps of a method for detecting a hoistway cable in an embodiment of the present invention;
fig. 2 is a schematic flow chart of steps of a method for detecting a cable in an elevator hoistway according to another embodiment of the present invention;
fig. 3 is a schematic diagram of a main circuit in a method of hoistway cable detection in an embodiment of the present invention;
fig. 4 is a schematic diagram of a main circuit in a method of hoistway cable detection in another embodiment of the present invention; and
fig. 5 is a schematic structural view of an elevator hoistway cable detection device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description of the specific embodiments of the method and apparatus for detecting elevator hoistway cable according to the present invention will be given by way of example with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Fig. 1 is a schematic flow chart of a method for detecting a hoistway cable in an embodiment. The method specifically comprises the following steps:
an auxiliary endpoint is provided on each elevator hoistway for detecting an electrical signal of the elevator hoistway, step 102.
Step 104, it is determined whether the electrical signal of each hoistway satisfies the logical detection of a hoistway cable disconnect.
In one embodiment, the logic to determine whether the electrical signal of each hoistway satisfies a hoistway cable disconnect includes: judging whether the first input point of the PLC receives an electric signal for detecting the elevator shaft; and when no output signal appears at the first PLC output point corresponding to the first PLC input point, judging that the elevator well cable is in a disconnection state. Further, the logic to determine whether the electrical signal of each hoistway satisfies a hoistway cable disconnect includes: judging whether the first input point of the PLC receives an electric signal for detecting the elevator shaft; when an output signal appears at a first PLC output point corresponding to the first PLC input point, the first signal lamp is in a lighting state.
Still further, the logic to determine whether the electrical signal of each hoistway satisfies a hoistway cable disconnect includes: judging whether the second input point of the PLC receives an electric signal for detecting the elevator shaft when the first signal lamp is in a lighting state; and if the second input point of the PLC does not receive the electric signal for detecting the elevator shaft, judging that the cable of the elevator shaft is in a disconnected state.
Further, in one embodiment, the logic to determine whether the electrical signal of each hoistway satisfies a hoistway cable disconnect includes: judging whether the second input point of the PLC receives an electric signal for detecting the elevator shaft when the first signal lamp is in a lighting state; when an output signal appears at a PLC second output point corresponding to the PLC second input point, the second signal lamp is in a lighting state.
Furthermore, the elevator hoistway detection method according to the present disclosure further includes: detecting the wiring of the branch cables which are cut off in the middle of each elevator shaft cable and are connected in parallel with the corresponding branch cables; judging whether the wiring of each branch cable is correct; if the wiring of the branch cable is correct, the corresponding indicator lamp is in a lighting state, and if the wiring of the branch cable is incorrect, the corresponding indicator lamp is not in a lighting state. Further, the elevator hoistway detection method related to the present disclosure further includes: if the wire core of the detected branch cable is disconnected or the wire core of the detected branch cable is misplaced with the wire core of the other wires, the corresponding indicator lamp is not in a lighting state.
In order to better understand and apply one elevator hoistway cable detection method to which the present disclosure relates, the following examples are made. It should be noted that the scope of protection of the present disclosure is not limited to the following examples.
With reference to fig. 2-4, fig. 3 is a diagram of an elevator hoistway cable for powering hoistway components and collecting hoistway information. Fig. 4 is a PCL control loop of an elevator hoistway cable detection device, where the hoistway cable is connected to the detection device, a SB1 switch is started to transmit a signal from a D01 plug-in to a K9 plug-in through a wire core L11, a corresponding detection signal indicator is on, the wire core L11 is normal, an input point I0.0 of the PLC obtains a signal, an output point Q0.0 outputs a signal, the output signal transmits the signal from the D01 plug-in to the K9 plug-in through a wire core N1, a corresponding detection signal indicator is on, the wire core N1 is normal, an input point I0.1 of the PLC obtains a signal, an output point Q0.1 outputs a signal, and a111, a125, a121, 1R, and 1L, VCM, VIP, PE are sequentially detected. When the middle of the detected wire core is disconnected or the contact is bad, the signal indicator lamp is bad to light, and the detection device stops the lighting of the broken signal lamp; when the detected wire core is short-circuited with other wire cores, two input points are used for obtaining signals simultaneously, the detection device is short-circuited, the signal lamp is on, and detection is stopped. Note that 723, 711, 715, 713, 709, 707 are shorted to the corresponding 700, the corresponding detection signal indicator lights are normally turned on, JL and VCM are shorted at the same time, a133 and a131, and a131 and a129 are shorted at the same time, and the a129 detection signal indicator lights are normally turned on.
Further, since the elevator hoistway has hoistway information switches such as limit switches, and speed change switches, and the information switches in the elevator hoistway are connected to the elevator system via hoistway information cables, failure of any one of the information switches affects the safety of the elevator, and therefore, it is necessary to ensure that the hoistway information cables are correct first. Specifically, the well information cable detection system designed by utilizing the PLC is divided into two parts, namely an automatic detection part and a manual detection part. The automatic detection part detects a wire core penetrating through the whole elevator shaft in the shaft information cable, the wire core is not disconnected in the middle, the wire core is directly connected to the D01 plug-in unit from the K09 plug-in unit, the D01 end L11 is used as an initial detection point, the wire core is connected to the PLC input end I0.0 and the L11 signal indicator lamp through the K09 end L11, the I0.0 receives signals, the output end Q0.0 has output signals, the D02 end N1 is connected to the output end Q0.0, the wire core is connected to the PLC input ends I0.1 and the N1 signal indicator lamp through the K09 end N1, and the output end Q0.1 has output signals. And similarly, if the wire core is disconnected or misplaced with other wire cores, the corresponding signal indicator lamp is not on, and the automatic detection is stopped. In addition, the manual detection part is used for detecting whether the wiring of the branch cables cut off from the middle of the hoistway information cable and connected with the corresponding branch cables is correct or not, two signal wires in each branch cable are in butt joint, the corresponding indicator lamps are on, and if the wiring is wrong, the corresponding signal lamps are not on.
According to the elevator shaft cable detection method provided by the invention, an auxiliary endpoint is arranged on each elevator shaft and used for detecting an electric signal of the elevator shaft; judging whether the electric signal of each elevator hoistway meets logic detection of disconnection of the elevator hoistway cable; if the electrical signal of each elevator hoistway does not meet the logic detection of the disconnection of the elevator hoistway cable, the elevator hoistway cable is judged to be detected normally. The method aims at improving the quality of the elevator well cable, rapidly and efficiently detecting the well cable, ensuring zero error of the elevator well cable and having high efficiency and usability of application.
Based on the same inventive concept, an elevator hoistway cable detection device is also provided. Because the principle of solving the problem of the device is similar to that of the elevator shaft cable detection method, the implementation of the device can be realized according to the specific steps of the method, and the repetition is omitted.
Fig. 5 is a schematic structural view of an elevator hoistway cable detection device according to an embodiment. The hoistway cable detection device 10 includes: a setting module 200, a judging module 400 and a detection judging module 600.
Wherein the setting module 200 is configured to set an auxiliary endpoint on each elevator hoistway, the auxiliary endpoint being configured to detect an electrical signal of the elevator hoistway; the judging module 400 is configured to judge whether the electrical signal of each elevator hoistway meets a logic detection of disconnection of the elevator hoistway cable; the detection determination module 600 is configured to determine that the hoistway cable is detected properly if the electrical signal of each hoistway does not satisfy the logical detection of the hoistway cable disconnection.
The invention provides an elevator shaft cable detection device, wherein a setting module is used for setting auxiliary endpoints on each elevator shaft, and the auxiliary endpoints are used for detecting electric signals of the elevator shaft; the judging module judges whether the electric signal of each elevator shaft meets the logic detection of the disconnection of the elevator shaft cable; the detection judgment module judges that the elevator shaft cable is normally detected if the electric signal of each elevator shaft does not meet the logic detection of the elevator shaft cable disconnection. The device aims at improving the quality of the elevator well cable, rapidly and efficiently detecting the well cable, ensuring zero error of the elevator well cable and having high efficiency and usability of application.
Above, according to the elevator well cable detection method and device and the computer readable storage medium, the quality of the elevator well cable can be effectively improved, the well cable can be rapidly and efficiently detected, zero errors of the elevator well cable are ensured, and the elevator well cable detection method and device have high efficiency and usability in application. Embodiments of the present invention also provide a computer-readable storage medium having a computer program stored thereon, the program being executed by the processor of fig. 1 or 2.
Embodiments of the present invention also provide a computer program product comprising instructions. The computer program product, when run on a computer, causes the computer to perform the method of fig. 1 or fig. 2 described above.
Those skilled in the art will appreciate that implementing all or part of the above-described methods in accordance with the embodiments may be accomplished by way of a computer program stored on a computer readable storage medium, which when executed may comprise the steps of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), or the like.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
The basic principles of the present disclosure have been described above in connection with specific embodiments, however, it should be noted that the advantages, benefits, effects, etc. mentioned in the present disclosure are merely examples and not limiting, and these advantages, benefits, effects, etc. are not to be considered as necessarily possessed by the various embodiments of the present disclosure. Furthermore, the specific details disclosed herein are for purposes of illustration and understanding only, and are not intended to be limiting, since the disclosure is not necessarily limited to practice with the specific details described.
The block diagrams of the devices, apparatuses, devices, systems referred to in this disclosure are merely illustrative examples and are not intended to require or imply that the connections, arrangements, configurations must be made in the manner shown in the block diagrams. As will be appreciated by one of skill in the art, the devices, apparatuses, devices, systems may be connected, arranged, configured in any manner. Words such as "including," "comprising," "having," and the like are words of openness and mean "including but not limited to," and are used interchangeably therewith. The terms "or" and "as used herein refer to and are used interchangeably with the term" and/or "unless the context clearly indicates otherwise. The term "such as" as used herein refers to, and is used interchangeably with, the phrase "such as, but not limited to.
In addition, as used herein, the use of "or" in the recitation of items beginning with "at least one" indicates a separate recitation, e.g., "at least one of A, B or C" recitation means a or B or C, or AB or AC or BC, or ABC (i.e., a and B and C). Furthermore, the term "exemplary" does not mean that the described example is preferred or better than other examples.
It is also noted that in the systems and methods of the present disclosure, components or steps may be disassembled and/or assembled. Such decomposition and/or recombination should be considered equivalent to the present disclosure.
Various changes, substitutions, and alterations are possible to the techniques described herein without departing from the teachings of the techniques defined by the appended claims. Furthermore, the scope of the claims of the present disclosure is not limited to the particular aspects of the process, machine, manufacture, composition of matter, means, methods and acts described above. The processes, machines, manufacture, compositions of matter, means, methods, or acts, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding aspects described herein may be utilized. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or acts.
The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the disclosure. Thus, the present disclosure is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of the disclosure to the form disclosed herein. Although a number of example aspects and embodiments have been discussed above, a person of ordinary skill in the art will recognize certain variations, modifications, alterations, additions, and subcombinations thereof.
Claims (3)
1. A method of hoistway cable detection, the method comprising:
providing an auxiliary endpoint on each elevator hoistway, the auxiliary endpoint for detecting an electrical signal of the elevator hoistway;
determining whether the electrical signal of each hoistway satisfies a logical detection of a hoistway cable disconnect;
if the electrical signal of each elevator hoistway does not meet the logic detection of the elevator hoistway cable disconnection, judging that the elevator hoistway cable detection is normal;
further comprises: detecting the wiring of the branch cables which are cut off in the middle of each elevator shaft cable and are connected in parallel with the corresponding branch cables;
judging whether the wiring of each branch cable is correct or not;
if the wiring of the branch cable is correct, the corresponding indicator lamp is in a lighting state, and if the wiring of the branch cable is incorrect, the corresponding indicator lamp is not in a lighting state;
further comprises: if the detected wire core of the branch cable is disconnected or the detected wire core of the branch cable is misplaced with the other wire core wires, the corresponding indicator lamp is not in a lighting state;
the logic to determine whether the electrical signal of each hoistway satisfies a hoistway cable disconnect includes:
judging whether the first input point of the PLC receives the electric signal for detecting the elevator well or not;
when no output signal appears at a first PLC output point corresponding to the first PLC input point, judging that the elevator well cable is in a disconnection state;
the logic to determine whether the electrical signal of each hoistway satisfies a hoistway cable disconnect includes:
judging whether the first input point of the PLC receives the electric signal for detecting the elevator well or not;
when an output signal appears at a first PLC output point corresponding to the first PLC input point, the first signal lamp is in a lighting state;
the logic to determine whether the electrical signal of each hoistway satisfies a hoistway cable disconnect includes:
judging whether the electrical signal for detecting the elevator shaft is received by a PLC second input point when the first signal lamp is in a lighting state;
and if the second input point of the PLC does not receive the electric signal for detecting the elevator well, judging that the elevator well cable is in a disconnected state.
The logic to determine whether the electrical signal of each hoistway satisfies a hoistway cable disconnect includes:
judging whether the electrical signal for detecting the elevator shaft is received by a PLC second input point when the first signal lamp is in a lighting state;
when an output signal appears at a PLC second output point corresponding to the PLC second input point, the second signal lamp is in a lighting state;
further comprises: the elevator shaft is provided with shaft information switches such as limit switches, limit switches and speed change switches, the information switches in the elevator shaft are connected to an elevator system through a shaft information cable, and the safety of the elevator can be influenced when any one of the information switches fails;
the well information cable detection system designed by utilizing the PLC is divided into two parts, namely an automatic detection part and a manual detection part; the automatic detection part detects a wire core penetrating through the whole elevator shaft in the shaft information cable, and the middle of the wire core is not disconnected; if the wire core is disconnected or misplaced with other wire cores, the corresponding signal indicator lamp is not on, and the automatic detection is stopped; the manual detection part is used for detecting whether the wiring of the branch cables which are cut off in the middle of the hoistway information cable and are connected with the corresponding branch cables in parallel is correct, two signal wires in each branch cable are in butt joint, the corresponding indicator lamps are on, and if the wiring is wrong, the corresponding signal lamps are not on.
2. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the steps of the method of claim 1.
3. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method of claim 1 when executing the program.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810989509.1A CN110861986B (en) | 2018-08-28 | 2018-08-28 | Elevator shaft cable detection method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810989509.1A CN110861986B (en) | 2018-08-28 | 2018-08-28 | Elevator shaft cable detection method and device |
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| CN110861986A CN110861986A (en) | 2020-03-06 |
| CN110861986B true CN110861986B (en) | 2024-02-02 |
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| CN201810989509.1A Active CN110861986B (en) | 2018-08-28 | 2018-08-28 | Elevator shaft cable detection method and device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000318949A (en) * | 1999-05-13 | 2000-11-21 | Hitachi Building Systems Co Ltd | Diagnosing device for moving cable of obliquely traveling elevator |
| JP2006298622A (en) * | 2005-04-22 | 2006-11-02 | Mitsubishi Electric Building Techno Service Co Ltd | Abnormality detection device of elevator control cable and automatic restoration service system of elevator using it when earthquake occurs |
| CN103552897A (en) * | 2012-05-29 | 2014-02-05 | 三菱电机株式会社 | Anomaly detection device and method for elevator control cables |
| CN107128776A (en) * | 2017-06-30 | 2017-09-05 | 江苏和亿机电科技有限公司 | Elevator cable detection device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG135015A1 (en) * | 2003-01-29 | 2007-09-28 | Inventio Ag | Device for monitoring cables of a lift |
| US20080091278A1 (en) * | 2006-10-11 | 2008-04-17 | The Peelle Company Ltd. | Freight elevator door control utilizing serial communication |
-
2018
- 2018-08-28 CN CN201810989509.1A patent/CN110861986B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000318949A (en) * | 1999-05-13 | 2000-11-21 | Hitachi Building Systems Co Ltd | Diagnosing device for moving cable of obliquely traveling elevator |
| JP2006298622A (en) * | 2005-04-22 | 2006-11-02 | Mitsubishi Electric Building Techno Service Co Ltd | Abnormality detection device of elevator control cable and automatic restoration service system of elevator using it when earthquake occurs |
| CN103552897A (en) * | 2012-05-29 | 2014-02-05 | 三菱电机株式会社 | Anomaly detection device and method for elevator control cables |
| CN107128776A (en) * | 2017-06-30 | 2017-09-05 | 江苏和亿机电科技有限公司 | Elevator cable detection device |
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