JP5645427B2 - Elevator failure diagnosis device and elevator failure diagnosis method - Google Patents

Description

  The present invention relates to an elevator failure diagnosis apparatus that diagnoses, for example, whether or not a failure has occurred in each device that raises and lowers an elevator car by operating sound.

  In a conventional device for diagnosing a device failure, a sensor or a microphone is attached to each device to be diagnosed, and the presence or absence of failure is diagnosed from sound data input from the device (for example, Patent Literature 1 and Patent Literature 2). .

JP 2000-81813 A Japanese Patent Laid-Open No. 10-124790

However, in the conventional failure diagnosis devices disclosed in Patent Documents 1 and 2, microphones and sensors are attached to each diagnosis target, so that there are a large number of microphones and sensors and the cost increases as the number of diagnosis targets increases. there were.
In addition, the sound data used in the primary diagnosis for the secondary diagnosis at the remote center side is transmitted at every diagnosis, and there is a problem that the cost for transmission cannot be reduced.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator failure diagnosis apparatus that can reduce costs by reducing the number of microphones installed.
It is another object of the present invention to provide an elevator failure diagnosis apparatus that can reduce costs by transmitting sound data only when necessary for secondary diagnosis.

The elevator failure diagnosis apparatus according to the present invention is attached to the outside of an elevator car and collects sound of operation of the equipment that raises and lowers the car, and based on the operation sound collected by the sound input means, A primary diagnosis means for transmitting a diagnosis result obtained by diagnosing a failure; and a primary diagnosis means connected to the primary diagnosis means via a communication line for diagnosing a device failure based on the diagnosis result of the primary diagnosis means and the operation sound used for the diagnosis. A secondary diagnosis means, and a secondary diagnosis execution determination means for determining whether or not a diagnosis by the secondary diagnosis means is necessary based on a diagnosis result of the primary diagnosis means. When it is determined that diagnosis by the secondary diagnosis means is necessary based on the information indicating the diagnosis result transmitted from the primary diagnosis means, a signal to send the diagnosed operation sound to the secondary diagnosis means is transmitted to the primary diagnosis means. The diagnostic means is When receiving from the secondary diagnosis execution determining means for No. transmits the diagnosis result and diagnosis the operation sound to the secondary diagnosis means to control the operation of the elevator, the elevator operation control for transmitting elevator operation status information about the operational status of the elevator And secondary diagnosis sound data creating means for creating secondary diagnosis sound data in which the elevator operation status information received from the elevator operation control means and the diagnosed operation sound are associated with each other. Is for diagnosing equipment failure based on secondary diagnostic sound data .

According to the present invention, when the secondary diagnosis execution determination unit determines that the diagnosis by the secondary diagnosis unit is necessary based on the information indicating the diagnosis result of the primary diagnosis unit, the diagnosed operation sound is transmitted to the secondary diagnosis unit. A signal indicating that the transmission is to be sent is transmitted to the primary diagnosis means, and the operation sound and diagnosis result diagnosed by the temporary diagnosis means are transmitted to the secondary diagnosis means via the communication line, and further, the operation of the elevator is controlled and the operation of the elevator Elevator operation control means for transmitting elevator operation status information relating to the situation, and secondary diagnosis sound data for creating secondary diagnosis sound data in which the elevator operation status information received from the elevator operation control means is associated with the diagnosed operation sound and a data creation unit, since the secondary diagnosis means for diagnosing a failure of the device based on the secondary diagnosis sound data, to reduce the data traffic in the communication circuit, and the failure diagnosis It is possible to reduce costs.

It is a figure which shows the structure of the elevator with which the elevator failure diagnostic apparatus which concerns on Embodiment 1 of this invention was applied. It is a flowchart which shows operation | movement of the elevator failure diagnostic apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows the structure of the elevator with which the elevator failure diagnostic apparatus which concerns on Embodiment 2 of this invention was applied. It is a flowchart which shows operation | movement of the elevator failure diagnostic apparatus which concerns on Embodiment 2 of this invention. It is a figure which shows the structure of the elevator with which the elevator failure diagnostic apparatus which concerns on Embodiment 3 of this invention was applied. It is a flowchart which shows operation | movement of the elevator failure diagnostic apparatus which concerns on Embodiment 3 of this invention. It is a figure which shows the structure of the elevator with which the elevator failure diagnostic apparatus which concerns on Embodiment 4 of this invention was applied. It is a figure which shows the sound data for secondary diagnosis in Embodiment 4 of this invention. It is a flowchart which shows operation | movement of the elevator failure diagnostic apparatus which concerns on Embodiment 4 of this invention. It is a flowchart which shows another operation | movement of the elevator failure diagnostic apparatus which concerns on Embodiment 4 of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Embodiment 1 FIG.
1 is a diagram showing a configuration of an elevator to which an elevator failure diagnosis apparatus according to Embodiment 1 of the present invention is applied.
As shown in FIG. 1, the elevator includes an elevator car 22 riding on a main rope 20 with one end fixed via pulleys 21 </ b> A and 21 </ b> B, a counterweight 23 connected to a free end of the main rope 20, and an elevator car. There is a hoisting machine 24 that winds up the main rope 20 via pulleys 21C and 21D between the counterweight 22 and the counterweight 23.
Although not shown, the elevator car 22 is lifted and lowered along the car guide rail, and the counterweight 23 is lifted and lowered in the opposite direction to the elevator car 22 along the counterweight guide rail. Yes.

  The elevator has an endless governor rope 26 hung between a governor 25 for detecting overspeed and a pulley 21E. The governor rope 26 and the elevator car 22 are connected by a connecting portion 27. It is connected.

The elevator failure diagnosis apparatus applied to the elevator configured as described above includes microphones (speech input means) 10 and 11 and a primary failure diagnosis apparatus (primary diagnosis means) 1.
The microphones 10 and 11 are attached to the upper and lower portions outside the elevator car 22 and collect external operation sounds. When the elevator car 22 rises, the microphone 10 approaches the pulleys 21C and 21D and the governor 25 and collects the operation sound. The microphone 11 collects the pulley 21E and the hoisting machine 24 when the elevator car 22 descends. The sound of the action is collected. The microphone 11 also collects operation sounds of the pulleys 21A and 21B. Sound data indicating the operation sound collected by the microphones 10 and 11 is transmitted to the primary failure diagnosis apparatus 1.

The primary failure diagnosis apparatus 1 performs sound pressure measurement, frequency analysis, etc. on the sound data collected by the microphones 10 and 11, and detects failure of each device of the elevator (the pulleys 21A to 21E, the hoisting machine 24, the speed governor 25). The presence or absence is diagnosed.
The primary failure diagnosis apparatus 1 may be attached to the elevator car 22 or may be installed somewhere in the hoistway.

Next, the operation of the elevator failure diagnosis apparatus configured as described above will be described.
FIG. 2 is a flowchart showing the operation of the elevator failure diagnosis apparatus according to Embodiment 1 of the present invention.
In the elevator, the hoisting machine 24 is driven to wind up the main rope 20, whereby the pulleys 21 </ b> A to 21 </ b> C rotate, and the elevator car 22 is raised and lowered along the car guide rail. At this time, the pulley 21D also rotates, and the counterweight 23 moves up and down in the direction opposite to the elevator car 22 along the counterweight guide rail.
Further, as the elevator car 22 moves up and down, the governor rope 26 connected to the elevator car 22 moves, and the pulley 21E and the governor 25 rotate accordingly.

  When the elevator car 22 is moving up and down as described above, in the elevator failure diagnosis apparatus, as shown in FIG. 2, the microphone 10 operates as the pulleys 21C and 21D and the governor 25 when the elevator car 22 is raised. Sound is collected, and the microphone 11 collects operation sounds of the pulley 21E and the hoisting machine 24 when the elevator car 22 descends. The microphone 11 also collects operation sounds of the pulleys 21A and 21B (step ST21). Sound data indicating the operation sound of each device of the elevator collected by the microphones 10 and 11 is transmitted to the primary failure diagnosis apparatus 1.

  Next, the primary failure diagnosis apparatus 1 diagnoses whether or not there is a failure in each device of the elevator by performing sound pressure measurement, frequency analysis, etc. on the sound data collected by the microphones 10 and 11 (step ST22).

As described above, according to the first embodiment, by attaching the microphones 10 and 11 to the outside of the elevator car 22, the pulleys 21 </ b> A to 2 1 E, the hoisting machine 24, and the speed governor 25 that are the targets of failure diagnosis. It is possible to collect faulty operation sounds and perform fault diagnosis, and it is not necessary to attach a microphone in the vicinity of each equipment or equipment subject to fault diagnosis, so that the equipment cost for fault diagnosis can be reduced. .

  In the first embodiment, the microphones 10 and 11 are configured to be attached to the elevator car 22. However, the present invention is not limited to this, and the microphone is attached to a device connected to the elevator car 22 and simultaneously moving up and down the hoistway. Alternatively, it may be configured to be attached to a counterweight 23 that moves up and down the hoistway in the same manner as the elevator car 22.

Embodiment 2. FIG.
FIG. 3 is a diagram showing the configuration of an elevator to which the elevator failure diagnosis apparatus of the present invention is applied. The elevator failure diagnosis apparatus according to Embodiment 2 shown in FIG. 3 changes the primary failure diagnosis apparatus 1 of the elevator failure diagnosis apparatus according to Embodiment 1 shown in FIG. 1 to a primary failure diagnosis apparatus (primary diagnosis means) 2. The communication devices 3A and 3B for performing communication between the elevator side device and the remote center side device via the communication line 50 and the secondary failure diagnosis device (secondary diagnosis means) 4 on the remote center side are added. Is. Other configurations of the same or corresponding parts are denoted by the same reference numerals and description thereof is omitted.

Similar to the primary failure diagnosis device 1, the primary failure diagnosis device 2 performs sound pressure measurement, frequency analysis, etc. on the sound data collected by the microphones 10 and 11, and diagnoses the presence / absence of a failure in each device of the elevator. is there. Further, when the primary failure diagnosis device 2 determines that there is a failure in the elevator equipment, the communication device 3A, the communication line 50, and the communication device 3B are provided with the sound data used for the primary diagnosis and information indicating the primary diagnosis result. To the secondary failure diagnosis apparatus 4 via
The primary failure diagnosis device 2 may be attached to the elevator car 22 or may be installed somewhere in the hoistway.

  The secondary failure diagnosis device 4 performs more accurate failure diagnosis using abundant hardware resources than the primary failure diagnosis device 2 based on the sound data and the primary diagnosis result by the primary failure diagnosis device 2. is there.

Next, the operation of the elevator failure diagnosis apparatus configured as described above will be described.
FIG. 4 is a flowchart showing the operation of the elevator failure diagnosis apparatus according to Embodiment 2 of the present invention. In the operation of the elevator failure diagnosis apparatus according to the second embodiment shown in FIG. 4, the description of the operation similar to that of the elevator failure diagnosis apparatus according to the first embodiment shown in FIG. 2 is simplified.
In the elevator failure diagnosis apparatus in a state where the elevator car 22 is moving up and down, as shown in FIG. 4, the microphones 10 and 11 collect the operation sound of each device of the elevator (step ST41). The sound data indicating the operation sound of each device of the elevator collected by the microphones 10 and 11 is input to the primary failure diagnosis apparatus 2.

  Next, the primary failure diagnosis device 2 diagnoses the presence / absence of a failure in each device of the elevator by performing sound pressure measurement, frequency analysis, etc. on the sound data collected by the microphones 10 and 11 (step ST42).

  In step ST42, when the primary failure diagnosis device 2 determines that the elevator apparatus has a failure, the primary failure diagnosis device 2 then transmits the sound data used for the primary diagnosis and information indicating the primary diagnosis result to the communication device 3A, the communication line 50, and It transmits to the secondary failure diagnosis apparatus 4 via the communication apparatus 3B (step ST43).

  Next, the secondary failure diagnosis device 4 performs more accurate failure diagnosis using abundant hardware resources than the primary failure diagnosis device 2 based on the sound data and the primary diagnosis result obtained by the primary failure diagnosis device 2. (Step ST44). For example, using hardware resources having a larger data storage capacity than the primary failure diagnosis device 2, sound data and primary diagnosis results collected from a plurality of primary failure diagnosis devices 2, and past sound data of each primary failure diagnosis device 2 In addition, the primary diagnosis result is accumulated, and the failure diagnosis with higher accuracy is performed by using the accumulated large amount of data and using the similarity and the change with time.

  As described above, according to the second embodiment, by attaching the microphones 10 and 11 to the outside of the elevator car 22, the operations of the pulleys 21 </ b> A to 21 </ b> E, the hoisting machine 24, and the speed governor 25 that are the targets of failure diagnosis. It is possible to collect a sound and perform a failure diagnosis, and it is not necessary to attach a microphone near each device to be diagnosed or in the vicinity of the device, so that the device cost for the failure diagnosis can be reduced. Moreover, a highly accurate secondary diagnosis result can be obtained by notifying the secondary failure diagnosis device 4 of the primary diagnosis result and the sound data used for the primary diagnosis via the communication devices 3A and 3B.

  In the second embodiment, the microphones 10 and 11 are configured to be attached to the elevator car 22. However, the present invention is not limited to this, and the microphone is attached to a device that is connected to the elevator car 22 and moves up and down the hoistway at the same time. Alternatively, it may be configured to be attached to a counterweight 23 that moves up and down the hoistway in the same manner as the elevator car 22.

  Further, in the secondary failure diagnosis apparatus 4 according to the second embodiment, the device is configured so as to diagnose the failure. However, by listening to the operation sound used by the maintenance staff for the primary diagnosis, the presence / absence of the failure, the type, and the like are determined. You may comprise so that it may diagnose.

Embodiment 3 FIG.
FIG. 5 is a diagram showing the configuration of an elevator to which an elevator failure diagnosis apparatus according to Embodiment 3 of the present invention is applied. The elevator failure diagnosis apparatus according to Embodiment 3 shown in FIG. 5 has a secondary diagnosis data determination device (secondary diagnosis execution determination means) 5 added to the elevator failure diagnosis apparatus according to Embodiment 2 shown in FIG. Is. Other configurations of the same or corresponding parts are denoted by the same reference numerals and description thereof is omitted.

  If the primary failure diagnosis device 2 determines that there is a failure in the elevator equipment, the primary diagnosis data is sent to the secondary diagnosis data via the communication device 3A, the communication line 50, and the communication device 3B. It transmits to the determination apparatus 5. Further, when the primary failure diagnosis device 2 receives a signal indicating that the sound data used for the primary diagnosis is sent from the secondary diagnosis data determination device 5 to the secondary failure diagnosis device 4, the primary failure diagnosis device 2 receives the sound data and the primary diagnosis. Information indicating the result is transmitted to the secondary failure diagnosis device 4 via the communication device 3A, the communication line 50, and the communication device 3B.

  Based on the primary diagnosis result from the primary failure diagnosis device 2, the secondary diagnosis data judgment device 5 determines the importance of the failure (whether it is a failure that should be sent maintenance personnel immediately, a failure that is to be followed up, or more). Whether secondary diagnosis is necessary, etc., and whether the operation sound used for the primary diagnosis is transmitted to the secondary failure diagnosis device 4 to make the secondary failure diagnosis device 4 perform a highly accurate diagnosis. To do. Here, if the secondary diagnosis data determination device 5 determines that the secondary diagnosis by the secondary failure diagnosis device 4 is necessary, the sound data used for the primary diagnosis is sent to the secondary failure diagnosis device 4. A signal indicating that is output to the primary failure diagnosis device 2 via the communication device 3B, the communication line 50, and the communication device 3A. The degree of importance is determined using the failure location, the frequency of the same failure, the volume of the sound generated by the failure, and the like. For example, if a failure occurs in an important part or a loud sound is generated, a maintenance staff is dispatched immediately, and if it is a single notification at a location that is not an important part, follow-up and the frequency of notification of the same failure If is more than a certain level, secondary diagnosis is made.

Next, the operation of the elevator failure diagnosis apparatus configured as described above will be described.
FIG. 6 is a flowchart showing the operation of the elevator failure diagnosis apparatus according to Embodiment 3 of the present invention. In the operation of the elevator failure diagnosis apparatus according to the third embodiment shown in FIG. 6, the description of the operation similar to that of the elevator failure diagnosis apparatus according to the second embodiment shown in FIG. 4 is simplified.
In the elevator failure diagnostic apparatus in a state where the elevator car 22 is moving up and down, as shown in FIG. 6, the microphones 10 and 11 collect the operation sound of each device of the elevator, and the primary failure diagnostic apparatus 2 is based on the sound data. The presence / absence of a failure in each elevator device is diagnosed (steps ST61, 62).

  In this step ST62, when the primary failure diagnosis device 2 determines that the elevator apparatus has a failure, the primary failure diagnosis device 2 then sends information indicating the primary diagnosis result via the communication device 3A, the communication line 50, and the communication device 3B. The data is transmitted to the next diagnosis data determination device 5 (step ST63).

  Next, the secondary diagnosis data determination device 5 determines the importance of the failure based on the primary diagnosis result by the primary failure diagnosis device 2 and transmits the operation sound used for the primary diagnosis to the secondary failure diagnosis device 4. (Step ST64).

In step ST64, when the secondary diagnosis data determination device 5 determines that the secondary diagnosis by the secondary failure diagnosis device 4 is necessary, the secondary failure diagnosis device 4 uses the operation sound data used for the primary diagnosis. communication device 3B a signal indicating that send, via the communication times line 50 and communication device 3A outputs to the primary fault diagnosis apparatus 2 (step ST65).

  Next, when the primary failure diagnosis device 2 receives a signal indicating that the sound data used for the primary diagnosis is sent to the secondary failure diagnosis device 4 from the secondary diagnosis data determination device 5, the primary failure diagnosis device 2 receives the sound data and the primary diagnosis. Information indicating the result is transmitted to the secondary failure diagnosis device 4 via the communication device 3A, the communication line 50, and the communication device 3B (step ST66).

Next, the secondary failure diagnosis device 4 performs more accurate failure diagnosis using abundant hardware resources than the primary failure diagnosis device 2 based on the sound data and the primary diagnosis result obtained by the primary failure diagnosis device 2. (Step ST6 6 ).

As described above, according to the third embodiment, by attaching the microphones 10 and 11 to the outside of the elevator car 22, the operations of the pulleys 21 </ b> A to 21 </ b> E, the hoisting machine 24, and the speed governor 25 that are the targets of failure diagnosis. It is possible to collect a sound and perform a failure diagnosis, and it is not necessary to attach a microphone near each device to be diagnosed or in the vicinity of the device, so that the device cost for the failure diagnosis can be reduced. Further, only when necessary communication devices 3A, accurate secondary by via communication times line 50 and communication device 3B notifies the sound data used in the secondary fault diagnosis apparatus 4 to the primary diagnosis results and primary diagnosis Diagnosis results can be obtained, and line costs can be reduced.

  In the third embodiment, the microphones 10 and 11 are configured to be attached to the elevator car 22. However, the present invention is not limited to this, and the microphone is attached to a device connected to the elevator car 22 and simultaneously moving up and down the hoistway. Alternatively, it may be configured to be attached to a counterweight 23 that moves up and down the hoistway in the same manner as the elevator car 22.

  In the secondary diagnosis data determination device 5 according to the third embodiment, the device is configured to determine the importance of the failure. However, the maintenance staff determines the necessity of the secondary diagnosis from the primary diagnosis result. You may comprise as follows.

  Further, in the secondary failure diagnosis apparatus 4 according to the third embodiment, the device is configured so as to diagnose the failure. By listening to the operation sound used by the maintenance staff for the primary diagnosis, the presence / absence of the failure, the type, and the like are determined. You may comprise so that it may diagnose.

Embodiment 4 FIG.
FIG. 7 is a diagram showing the configuration of an elevator to which an elevator failure diagnosis apparatus according to Embodiment 4 of the present invention is applied. The elevator failure diagnosis apparatus according to the fourth embodiment shown in FIG. 7 is the same as the elevator failure diagnosis apparatus according to the third embodiment shown in FIG. 5 except that the elevator operation control unit (elevator operation control means) 6 and secondary diagnosis sound data creation. A device (secondary diagnosis sound data creation means) 7 is added. Other configurations of the same or corresponding parts are denoted by the same reference numerals and description thereof is omitted.

The primary failure diagnosis apparatus 2 sends the sound data used for the primary diagnosis and information indicating the primary diagnosis result to the secondary diagnosis sound data generation apparatus 7 in response to a request from the secondary diagnosis sound data generation apparatus 7. Send.
Further, the secondary diagnosis data determination device 5 indicates that the secondary diagnosis sound data is sent to the secondary failure diagnosis device 4 when it is determined that the secondary diagnosis by the secondary failure diagnosis device 4 is necessary. the communication device 3B, the communication times line 50, via the communication device 3A outputs the secondary diagnosis sound data generating device 7.

  The elevator operation control unit 6 controls elevator operations such as opening / closing and raising / lowering of the elevator door, car position, and car movement speed. Information on the elevator operation status by the elevator operation control unit 6 is transmitted to the sound data creation device 7 for secondary diagnosis.

  As shown in FIG. 8, the secondary diagnosis sound data creation device 7 is based on the elevator operation status by the elevator operation control unit 6 and the sound data used for the primary diagnosis by the primary failure diagnosis device 2. The second diagnosis sound data in which the operation status such as the position and speed of the elevator and the elevator operation status before and after that and the operation sound are associated with each other is created. The secondary diagnosis sound data created by the secondary diagnosis sound data creation device 7 is transmitted to the secondary failure diagnosis device 4 in accordance with an instruction from the secondary diagnosis data determination device 5.

Next, the operation of the elevator failure diagnosis apparatus configured as described above will be described.
FIG. 9 is a flowchart showing the operation of the elevator failure diagnosis apparatus according to Embodiment 4 of the present invention. In the operation of the elevator failure diagnosis apparatus according to the fourth embodiment shown in FIG. 9, the description of the operation similar to that of the elevator failure diagnosis apparatus according to the third embodiment shown in FIG. 6 is simplified.
In the elevator failure diagnosis apparatus in a state where the elevator car 22 is moving up and down, as shown in FIG. 9, the microphones 10 and 11 collect the operation sound of each device of the elevator, and the primary failure diagnosis apparatus 2 is based on the sound data. The presence / absence of a failure in each device of the elevator is diagnosed (steps ST91 and 92).

  In this step ST92, when the primary failure diagnosis device 2 determines that the elevator apparatus has a failure, the primary failure diagnosis device 2 transmits information indicating the primary diagnosis result to the secondary diagnosis data determination device 5, and the secondary diagnosis data determination device. 5 determines the importance of the failure based on the primary diagnosis result by the primary failure diagnosis device 2, and determines whether or not the operation sound used for the primary diagnosis is transmitted to the secondary failure diagnosis device 4 (step ST93). , 94).

In step ST94, the secondary diagnosis data determination device 5 sends the secondary diagnosis sound data to the secondary failure diagnosis device 4 when it is determined that the secondary diagnosis by the secondary failure diagnosis device 4 is necessary. communication device 3B a signal indicating, via the communication times line 50 and communication device 3A outputs the secondary diagnosis sound data generating device 7 (step ST95).

  Next, the secondary diagnosis sound data creation device 7 creates secondary diagnosis sound data based on the information about the elevator operation status by the elevator operation control unit 6 and the sound data by the primary failure diagnosis device 2 (step ST96). ). The secondary diagnosis sound data created by the secondary diagnosis sound data creation device 7 is transmitted to the secondary failure diagnosis device 4 in accordance with an instruction from the secondary diagnosis data determination device 5.

  Next, the secondary failure diagnosis device 4 uses a more abundant hardware resource than the primary failure diagnosis device 2 on the basis of the secondary diagnosis sound data by the secondary diagnosis sound data creation device 7, and has higher accuracy. Fault diagnosis is performed (step ST97).

As described above, according to the fourth embodiment, by attaching the microphones 10 and 11 to the outside of the elevator car 22, the operations of the pulleys 21 </ b> A to 21 </ b> E, the hoisting machine 24, and the speed governor 25 that are the targets of failure diagnosis. It is possible to collect a sound and perform a failure diagnosis, and it is not necessary to attach a microphone near each device to be diagnosed or in the vicinity of the device, so that the device cost for the failure diagnosis can be reduced. Further, only the communication devices 3A, that a via communication times line 50 and communication device 3B secondary failure diagnosis apparatus 4 obtain accurate secondary diagnosis results by notifying sound data for secondary diagnosis when needed In addition, the line cost can be reduced.

Note that it is also possible to send only necessary sound data to the secondary failure diagnosis device 4 based on the result of the primary diagnosis by the primary failure diagnosis device 2. Specifically, it can be configured as follows.
FIG. 10 is a flowchart showing another operation of the elevator failure diagnosis apparatus according to Embodiment 4 of the present invention. In FIG. 10, the description of the operation similar to that of the elevator failure diagnosis apparatus shown in FIG. 9 is simplified.
In the elevator failure diagnosis apparatus in a state where the elevator car 22 is moving up and down, as shown in FIG. 10, the microphones 10 and 11 collect the operation sound of each device of the elevator, and the primary failure diagnosis apparatus 2 is based on the sound data. When the presence or absence of a failure in each elevator device is diagnosed and the elevator device is diagnosed as having a failure, the elevator operation status information including the primary diagnosis result is transmitted via the communication device 3A, the communication line 50, and the communication device 3B. It transmits to the data determination apparatus 5 for secondary diagnosis (step ST101-103).

  Next, the secondary diagnosis data determination device 5 determines the importance of the failure based on the elevator operation status information from the primary failure diagnosis device 2, and makes a follow-up observation whether the failure should be immediately dispatched by maintenance personnel. It is determined whether it is a failure or further secondary diagnosis is required (step ST104).

In step ST104, when the secondary diagnosis data determination device 5 determines that the secondary diagnosis by the secondary failure diagnosis device 4 is necessary, the secondary diagnosis data determination device 5 then narrows down to a target or driving situation that requires the secondary diagnosis. sound and a data secondary diagnostic sound data secondary failure diagnosis apparatus communicating a signal indicating that sending the 4 unit 3B, the communication times lines 50 and the communication device 3A through the secondary diagnosis sound data generating device 7 Output to. Alternatively, a signal indicating that sound data is recollected / transmitted for an object or driving situation requiring secondary diagnosis is output to the elevator operation control unit 6 and the secondary diagnosis sound data creation device 7 (step ST105).

  Next, the secondary diagnosis sound data creation device 7 generates secondary diagnosis sound data composed of sound data focused on the target or driving situation that requires the secondary diagnosis in accordance with the instruction from the secondary diagnosis data determination device 5. Create (step ST106). The secondary diagnosis sound data created by the secondary diagnosis sound data creation device 7 is transmitted to the secondary failure diagnosis device 4 in accordance with an instruction from the secondary diagnosis data determination device 5.

Next, the secondary failure diagnosis device 4 uses a more abundant hardware resource than the primary failure diagnosis device 2 on the basis of the secondary diagnosis sound data by the secondary diagnosis sound data creation device 7, and has higher accuracy. Fault diagnosis is performed (step ST107).
By doing in this way, in addition to the same effect, the line cost can be further reduced, or a highly accurate secondary diagnosis result can be obtained.

  In the fourth embodiment, the microphones 10 and 11 are configured to be attached to the elevator car 22. However, the present invention is not limited to this, and the microphone is attached to a device that is connected to the elevator car 22 and moves up and down the hoistway at the same time. Alternatively, it may be configured to be attached to a counterweight 23 that moves up and down the hoistway in the same manner as the elevator car 22.

  In the secondary diagnosis data determination device 5 according to the fourth embodiment, the device is configured to determine the importance of the failure. However, the maintenance staff determines the necessity of the secondary diagnosis from the primary diagnosis result. You may comprise as follows.

  Further, in the secondary failure diagnosis apparatus 4 according to the fourth embodiment, the device is configured to diagnose the failure. However, the maintenance staff listens to the operation sound used for the primary diagnosis, so that the presence / absence of the failure and the type of the failure can be detected. You may comprise so that it may diagnose.

  Further, in the secondary diagnosis sound data creation device 7 according to the fourth embodiment, even if there is no instruction for sending the secondary diagnosis sound data from the secondary diagnosis data determination device 5, the primary failure diagnosis device 2 fails. When the information indicating the primary diagnosis result is transmitted to the secondary failure diagnosis device 4, the sound data for secondary diagnosis may be transmitted together. In this case, the secondary diagnosis data determination device 5 is not necessary.

  1, 2 Primary failure diagnosis device (primary diagnosis means), 3A, 3B communication device, 4 Secondary failure diagnosis device (secondary diagnosis means), 5 Secondary diagnosis data determination device (secondary diagnosis execution determination means), 6 Elevator operation control unit (elevator operation control means), 7 secondary diagnosis sound data creation device (secondary diagnosis sound data creation means), 10, 11 microphone (voice input means), 20 main ropes, 21A to 21E pulleys, 22 elevator cars, 23 counterweights, 24 hoisting machines, 25 governors, 26 governor ropes, 27 connections, 50 communication lines.

Claims (2)

Voice input means that is attached to the outside of the elevator car and collects operation sounds of the equipment that raises and lowers the car;
Primary diagnostic means for transmitting a diagnostic result obtained by diagnosing a failure of the device based on the operation sound collected by the voice input means;
A secondary diagnostic unit that is connected to the primary diagnostic unit via a communication line, and diagnoses a failure of the device based on a diagnosis result of the primary diagnostic unit and an operation sound used for the diagnosis;
A secondary diagnosis execution determination means for determining whether or not a diagnosis by the secondary diagnosis means is necessary based on a diagnosis result of the primary diagnosis means,
The secondary diagnosis execution determination means outputs the diagnosed operation sound when the diagnosis by the secondary diagnosis means is necessary based on the information indicating the diagnosis result transmitted from the primary diagnosis means. Sending a signal to the primary diagnostic means to the primary diagnostic means,
When receiving the signal from the secondary diagnosis execution determination unit, the primary diagnosis unit transmits the diagnosed operation sound and the diagnosis result to the secondary diagnosis unit ,
Elevator operation control means for controlling the operation of the elevator and transmitting elevator operation status information relating to the operation status of the elevator;
Further comprising secondary diagnostic sound data creating means for creating secondary diagnostic sound data associating the elevator operation status information received from the elevator operation control means with the diagnosed operation sound;
The secondary diagnostic means diagnoses a malfunction of the equipment based on the secondary diagnostic sound data . A voice input unit that is attached to the outside of the elevator car and collects the operation sound of the device that raises and lowers the car, and transmits a diagnosis result of diagnosing the failure of the device based on the operation sound collected by the voice input unit Primary diagnostic means, connected to the primary diagnostic means via a communication line, and secondary diagnostic means for diagnosing a failure of the device based on a diagnosis result of the primary diagnostic means and an operation sound used for the diagnosis, and Secondary diagnosis execution determination means for determining whether or not diagnosis by the secondary diagnosis means is necessary based on a diagnosis result of the primary diagnosis means; and an elevator operation state relating to the operation state of the elevator by controlling the operation of the elevator Elevator operation control means for transmitting information, and secondary diagnosis for associating the elevator operation status information received from the elevator operation control means with the diagnosed operation sound An elevator failure diagnosis method of an elevator failure diagnosis device provided with a secondary diagnosis sound data generation means for generating data,
When the secondary diagnosis execution determination unit determines that the diagnosis by the secondary diagnosis unit is necessary based on the information indicating the diagnosis result transmitted from the primary diagnosis unit, the second diagnosis execution sound is output as the second operation sound. A secondary diagnosis execution determination step of transmitting a signal to the primary diagnosis means to the primary diagnosis means;
When the primary diagnosis unit receives the signal from the secondary diagnosis execution determination unit, a primary diagnosis step of transmitting the diagnosed operation sound and the diagnosis result to the secondary diagnosis unit ;
An elevator failure diagnosis method , wherein the secondary diagnosis means includes a secondary diagnosis step of diagnosing a failure of the equipment based on the secondary diagnosis sound data .

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