JP4849902B2 - Elevator maintenance device by detecting abnormality of communication cable in hoistway - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator maintenance device for properly controlling operation of an elevator by specifying an abnormal degree and an occurrence place, by preventing contact with an elevator car by detecting abnormality of a communication cable in a hoistway of the elevator. <P>SOLUTION: This elevator maintenance device 10 has a detecting part 6 transmitting abnormality information on the communication cable by detecting a state of the communication cable laid in the hoistway, a storage part 21 storing an operation command of the elevator car corresponding to a degree of the abnormality information on the communication cable, a control part 20 transmitting the abnormality information and an operation state to a display part 23 as visual information, by transmitting a command to a control device 9 controlling operation of the elevator car, by selecting a stored operation command, by determining the degree of the abnormality information on the communication cable from the abnormality information and a limit line of a position of the communication cable in a cross section of the hoistway set from a travel range of the elevator car, and a display part 23 displaying the visual information. <P>COPYRIGHT: (C)2007,JPO&amp;INPIT

Description

  The present invention relates to an elevator maintenance device that detects an abnormality in a communication cable in a hoistway, and in particular, detects an abnormality in a communication cable laid in the hoistway of an elevator and controls the operation of the elevator, thereby The present invention relates to a device that secures safety.

  In buildings such as office buildings and condominiums, in order to provide broadband communication services to users of each terminal in the building, for example, it is common to install communication cables such as optical cables and communication devices. . The elevator hoistway of the building is used for the vertical wiring (vertical wiring) of the building of the communication cable.

  The vertical wiring in the hoistway means that a communication cable drawn into the building from the outside of the building or from the underground is laid along the wall surface of the elevator hoistway. The installed communication cable is distributed to each floor and wired to each user terminal. The vertical wiring of this communication cable in the elevator hoistway can be relatively easily routed without restrictions from other wiring and piping, so it has been adopted when newly laying communication cables in existing buildings. .

  Originally, an elevator hoistway is a space for traveling an elevator car. Therefore, the communication cable must be laid so as not to contact the elevator car. This is because if the communication cable becomes abnormal and comes into contact with the elevator car, the elevator travels. Further, the communication cable itself may be damaged during the contact. Therefore, the communication cable is usually laid so as to be within the limit line of the position of the communication cable in the hoistway cross section set from the traveling range of the elevator car. Therefore, a method is adopted in which the communication cable is fixed to the wall surface of the hoistway with a communication cable fixing tool provided at a constant interval and is held within the limit line.

  However, the communication cable laid in the hoistway may cause abnormalities such as protrusion or dropping out of the hoistway. This is mainly due to the weight of the communication cable or the wind pressure (particularly the negative pressure on the wall surface) generated by the elevator traveling in the hoistway. In particular, repeated wind pressure causes slippage between the communication cable fixture and the communication cable fixture in the communication cable fixture, which causes the communication cable to protrude between adjacent communication cable fixtures. To do. In addition, the communication cable may fall off due to elongation deformation, fatigue failure, or breakage of the plate or wire around which the communication cable is wound in the communication cable fixing tool.

  When an abnormality occurs in the elevator car due to the communication cable protruding into or dropping out from the hoistway, the traveling of the elevator is suspended in order to check or repair the communication cable. In this case, in general, a display such as “inspection” is displayed on the hoistway of each elevator hall, and an elevator user obtains information such as operation suspension only by looking at the display.

  In addition, after an earthquake occurs, there is a possibility that an abnormality such as protrusion or dropping of the communication cable into the hoistway may occur. This is mainly due to the fact that the communication cable vibrates at a different period from the wall due to the earthquake motion. This vibration may cause the communication cable to stick out due to slippage between the communication cable and the fixture described above, or the communication cable to drop due to elongation deformation of a plate or the like around which the communication cable is wound. Furthermore, the walls of the hoistway may be complicatedly deformed by the vibration of the building, and the communication cable fixing tool may be pulled out by a forcing force. In addition, the communication cable fixture may come off due to the influence of cracks generated in the concrete.

  In general, regarding the operation of an elevator when an earthquake occurs, in the case of a slight shaking that does not cause damage to the elevator, after a certain period of time, it automatically returns to normal operation and strong shaking ( When the operation is suspended due to a seismic intensity of about 4 or more, even if the elevator is not damaged, it is not restored until it is inspected by an engineer.

  Therefore, when an abnormality such as protrusion or dropout of the communication cable into the hoistway occurs due to slight shaking (seismic intensity of less than about 4), the elevator is stopped for inspection and repair. In this case, in general, a display such as “inspection” is displayed on the hoistway of each elevator hall, and the elevator user obtains information such as travel stoppage only for the display.

  In addition, if abnormalities such as protrusion or dropout of the communication cable in the hoistway occur due to strong shaking (seismic intensity of about 4 or more), inspection or inspection should be performed regardless of whether there is an abnormality in the communication cable in the hoistway. Elevator operation is suspended for repairs. In this case, generally, the elevator hall is displayed on the hoistway of each elevator hall, such as “suspending use of an elevator due to the occurrence of an earthquake”, and the elevator is not restored until inspection and repair are completed and safety is confirmed.

  On the other hand, Patent Literature 1 discloses an elevator earthquake abnormality detection device, and Patent Literature 2 discloses an elevator abnormality detection device and detection method.

JP-A-10-279215 JP-A-2005-29312

  If an abnormality such as protrusion or dropout occurs in the communication cable in the elevator hoistway, the communication cable may come into contact with the elevator car. If this contact occurs, it will interfere with the running of the elevator and the use of the elevator will have to be suspended for repair. In addition, the communication cable may be damaged and the communication service may be interrupted. However, it is difficult for an operator to detect the state of the communication cable in the hoistway and detect an abnormality in advance.

  In addition, when an abnormality occurs in the elevator car due to the communication cable protruding or dropping in the hoistway, the communication cable laid in the hoistway is inspected in order to identify the location of the communication cable abnormality. There must be. However, it takes time for an operator to identify an abnormal location in the hoistway. Moreover, the use of an elevator must be suspended during that time, and the service for elevator users in the building is reduced.

  In addition, after an earthquake occurs, it is necessary to stop the operation of the elevator and check the safety of the communication cable in the hoistway to confirm the safety. If an abnormality has occurred, repair is necessary. There is. However, it takes time for the worker to detect an abnormality in the communication cable in the hoistway and to identify the abnormal part. If this inspection and repair work is not performed quickly, service to elevator users in the building will be reduced.

  In addition, if the information such as suspension of elevators for checking and repairing communication cables in the hoistway is not notified to the elevator users in a convenient manner, the elevator users in the building will suffer inconvenience. Depending on the situation, information may be confused.

  The purpose of the present application is to solve such problems, detect an abnormality in the communication cable in the elevator hoistway to prevent contact with the elevator car in advance, and identify the degree of abnormality and the location where the abnormality has occurred. It is to provide an elevator maintenance device that appropriately controls operation and notifies elevator users of elevator operation information appropriately.

  In addition, after an earthquake occurs, the presence or absence of an abnormality in the communication cable in the hoistway is detected, and if an abnormality has occurred, the location of the abnormality is quickly identified, and the degree of earthquake and elevator operation information are provided in a convenient manner. It is to provide an elevator maintenance device for notifying elevator users.

In order to achieve the above object, an elevator maintenance apparatus according to the present invention for detecting an abnormality of a communication cable in a hoistway is laid in the hoistway of the elevator, and the state of the communication cable connected to a user terminal in the building is determined. A detection unit that detects and transmits communication cable abnormality information, a storage unit that stores an operation instruction of the elevator car according to the degree of communication cable abnormality information, an abnormality information transmitted from the detection unit, and an elevator car Control the operation of the elevator car by judging the degree of communication cable abnormality information from the limit line of the position of the communication cable in the hoistway cross section set from the travel range and selecting the operation command stored in the storage unit A control unit that transmits commands to the control device, and transmits the abnormality information of the communication cable and the operation status of the elevator car as visual information to the display unit, and the transmitted visual And a display unit for displaying the broadcast, the detection unit is provided in an elevator machine room located above the hoistway, it detects the state of the communication cable from the hole provided in the floor of the elevator machine room in the downward vinegar Rukoto and features.

  Moreover, the elevator maintenance apparatus by abnormality detection of the communication cable in the hoistway according to the present invention includes a recording unit that records position information of the elevator car, and the control unit is an abnormality transmitted from the detection unit mounted on the elevator car. From the information and the position information of the elevator car recorded in the recording unit, the location where the communication cable has failed is identified, and the location where the abnormality has occurred is transmitted to the display unit as visual information, and the elevator car is decelerated at the location where the failure has occurred. It is preferable to select an operation command to pass through.

  Moreover, the elevator maintenance apparatus based on the abnormality detection of the communication cable in the hoistway according to the present invention transmits the visual information about the operation state of the elevator car to the terminal of the user in the building by the communication cable in the building. It is preferable to do.

Moreover, the elevator maintenance apparatus by abnormality detection of the communication cable in a hoistway which concerns on this invention detects the state after the occurrence of an earthquake of the communication cable laid in the elevator hoistway and connected to the terminal of the user in a building The detection unit that sends out communication cable abnormality information, the earthquake detection device that detects the occurrence of an earthquake and sends out the level of earthquake, and the behavior of the elevator car according to the degree of earthquake and communication cable abnormality information Storage unit for storing commands, recording unit for recording elevator car position information, abnormality information transmitted from the detection unit, and limit of the position of the communication cable within the hoistway section set from the traveling range of the elevator car The level of the communication cable abnormality information is determined from the line, and the operation command stored in the storage unit is selected according to the level of the earthquake transmitted from the earthquake detection device. A control unit that transmits a command to a control device that controls the operation of the car, and transmits the degree of earthquake, the location and abnormality information of the communication cable, and the operation status of the elevator car as visual information to the display unit; A display unit for displaying the transmitted visual information , and the detection unit is provided in an elevator machine room located above the hoistway, and a communication cable downwards from a hole provided in the floor of the elevator machine room. It is characterized by Rukoto detect the state.

  Further, in the elevator maintenance apparatus according to the present invention for detecting an abnormality in the communication cable in the hoistway, the control unit provides visual information about the extent of the earthquake and the operation status of the elevator by the communication cable in the building. It is preferable to transmit to the terminal.

  Furthermore, in the elevator maintenance apparatus according to the present invention for detecting an abnormality in the communication cable in the hoistway, the detection unit preferably detects the state of the communication cable by object recognition, and the detection unit determines the state of the communication cable by image recognition. It is preferable to detect.

  With the above-described configuration, the elevator maintenance device based on the abnormality detection of the communication cable in the hoistway can detect the abnormality of the communication cable in the hoistway and prevent the contact with the elevator car in advance. That is, the detection unit detects an abnormality such as protrusion or dropout of the communication cable in the hoistway, for example, by means such as object recognition by an infrared laser irradiation device or image recognition by a monitoring camera. The protruding or dropping off of the communication cable is normally gradually increased due to the weight of the communication cable or the wind pressure due to the traveling of the elevator. Therefore, the detection unit can detect an abnormality of the communication cable before the communication cable comes into contact with the elevator car, and can be maintained by an operation command such as suspension of elevator operation by the control unit.

  Moreover, the elevator maintenance apparatus based on the abnormality detection of the communication cable in the hoistway can appropriately control the operation of the elevator by specifying the degree of abnormality of the communication cable and the location where the abnormality has occurred. In other words, when the detection unit detects an abnormality in the communication cable in the hoistway and the control unit determines that the degree of the abnormality is minor, provisional operation such as decelerating the passing speed only for the abnormality occurrence point. It is possible to select an operation command to perform. As a result, it is possible to avoid a decrease in service to elevator users due to suspension of elevator operation.

  Moreover, the elevator maintenance apparatus based on the abnormality detection of the communication cable in the hoistway can notify the elevator operation information to the elevator user in a convenient manner. That is, the elevator user can check and deal with the operation status such as elevator stoppage and deceleration operation by visual information transmitted from the control unit to each terminal via the communication cable.

  In addition, the elevator maintenance device can detect the presence or absence of an abnormality in the communication cable in the hoistway after an earthquake, and if an abnormality has occurred, it can quickly and reliably identify the abnormal location. It becomes.

  Moreover, the elevator maintenance apparatus based on the abnormality detection of the communication cable in the hoistway can notify the elevator user of the degree of earthquake and elevator operation information. That is, as described above, the judgment of suspension of elevator operation differs depending on the level of earthquake (seismic intensity of about 4 or greater or less than 4). The elevator user can check and deal with the extent of the earthquake and the operation status of the elevator according to the extent by visual information transmitted from the control unit to each terminal via the communication cable.

  As described above, according to the elevator maintenance apparatus according to the present invention for detecting an abnormality in a hoistway communication cable according to the present invention, the communication cable in the elevator hoistway is detected to prevent contact with the elevator car in advance. In addition, the operation of the elevator can be appropriately controlled by specifying the degree of abnormality and the location where the abnormality has occurred, and the elevator operation information can be notified to the elevator user appropriately.

  In addition, after an earthquake occurs, the presence or absence of an abnormality in the communication cable in the hoistway is detected, and if an abnormality has occurred, the location of the abnormality is quickly identified, and the degree of earthquake and elevator operation information are provided in a convenient manner. It is possible to notify elevator users.

  Embodiments according to the present invention will be described below in detail with reference to the drawings.

(Elevator maintenance device during normal operation)
FIG. 1 shows an outline of the laying of the communication cable 1 in the hoistway 3 according to the present invention and a schematic explanatory diagram of the elevator maintenance device 10. FIG. 2 is a schematic explanatory view of the AA cross section of the hoistway 3 shown in FIG.

  First, an outline of the laying of the communication cable 1 in the hoistway 3 will be described. The communication cable 1 is generally wired into a building such as an office building or a condominium by aerial drawing from a power pole or underground from a road wiring, and is connected to a main wiring board 11 provided in the basement 17. The communication cable 1 passes through the wall body 13 of the elevator hoistway 3 from the main wiring board 11 and is drawn into the hoistway 3, and the communication cable fixture 4 fixes the inner wall of the hoistway 3 at regular intervals. It is fixed to the body 13 and laid in the hoistway 3. The communication cable 1 passes through the wall 13 of the hoistway 3 again for each floor, is drawn into the ceiling 16 and is connected to the indoor user terminal 12.

  As shown in FIG. 2, the communication cable 1 laid inside the hoistway 3 generally has a limit line 15 of the position of the communication cable 1 in the cross section of the hoistway 3 set from the traveling range of the elevator car 2. It is fixed to the wall 13 of the hoistway 3 by the communication cable fixture 4 so as not to exceed.

  In FIG. 3, the outline | summary of the fixing method of the communication cable 1 laid in the hoistway 3 is illustrated. First, the guide cable 24 is disposed along the wall body 13 so as to include a range where the communication cable 1 is laid in the hoistway 3. The guide cable 24 is connected at its upper and lower ends to the guide cable fixture 30 (in FIG. 3, only the guide cable fixture 30 at the lower end of the guide cable 24 is shown). The guide cable fixture 30 is made of a section steel 25 combined by welding, and is fixed to the wall body 13 by a bolt 26. Further, the guide cable 24 is provided with a length adjusting mechanism such as a turnbuckle 27 and a tension is introduced into the guide cable 24. The bundle of communication cables 1 is entangled with the guide cable 24 by the communication cable fixture 4 at a predetermined interval and fixed to the wall body 13 by the bolts 28.

  Next, an overview of the elevator maintenance apparatus 10 will be described. FIG. 4 shows a system diagram of the elevator maintenance apparatus 10. In the present embodiment, the elevator maintenance device 10 includes a detection unit 6, a storage unit 21, a control unit 20, a display unit 23, and a recording unit 22, and is installed in the elevator machine room 5.

  The detection unit 6 detects the state of the communication cable 1 laid in the hoistway 3 and transmits an abnormality of the communication cable 1 to the control unit 20. In this Embodiment, the detection part 6 is the detection part 6a installed in the elevator maintenance apparatus 10 of the elevator machine room 5 (refer FIG. 1). For example, the detection unit 6 a is provided with an infrared laser irradiation device or a monitoring camera, and detects the state of the bundle of communication cables 1 from a hole provided in the floor of the elevator machine room 5. When the detection unit 6a is an infrared laser irradiation device, infrared rays are emitted toward the laid communication cable 1, the state of the communication cable 1 is detected based on the reflection state, and abnormal information such as protrusion is detected by object recognition. A call is sent to the control unit 20. When the detection unit 6a is a surveillance camera, the state of the laid communication cable 1 is photographed from above, and abnormal information such as protrusion is transmitted to the control unit 20 by image recognition.

  The detection unit 6 may be a part of the elevator car 2 that operates in the hoistway 3, for example, the detection unit 6b (see FIG. 1) mounted on the upper part thereof. In that case, for example, the detection unit 6b, which is an infrared laser irradiation device or a monitoring camera, detects the bundle of communication cables 1 along with the operation of the elevator car 2. When the detection unit 6b is, for example, an infrared laser irradiation device, the infrared ray is emitted toward the laid communication cable 1, the state of the communication cable 1 is detected based on the reflection state, and abnormal information such as protrusion is displayed. It transmits to the control part 20 by object recognition. When the detection unit 6b is a surveillance camera, the state of the laid communication cable 1 is photographed from above, and abnormal information such as protrusion is transmitted to the control unit 20 by image recognition. Information detected by the detection unit 6b is connected to the elevator maintenance device 10 in the elevator machine room 5 by the video cable 7 and transmitted together with the control cable 8 and the like. If the state of the communication cable 1 can be detected, the installation position of the infrared laser irradiation device or the surveillance camera on the elevator car 2 may be the lower part or the side part of the elevator car 2, and is determined by the design of the elevator car 2. Is done.

  The storage unit 21 stores an operation command for the elevator car 2 according to the degree of abnormality information of the communication cable 1. That is, the protrusion and dropout caused by the weight of the communication cable 1 or the wind pressure generated by the traveling of the elevator car 2 in the hoistway 3 tend to gradually grow once generated. Therefore, this operation command varies depending on the degree of protrusion or dropout. Further, from the viewpoint of service to elevator users, the suspension of the elevator car 2 should be avoided as much as possible. Therefore, the operation command is determined in consideration of not only the safe driving of the elevator but also the service to the user.

  The control unit 20 firstly transmits the abnormality information transmitted from the detection unit 6 such as the protruding of the communication cable 1 and the position of the communication cable 1 in the cross section of the hoistway 3 set from the traveling range of the elevator car 2. The degree of abnormality information of the communication cable 1 is determined from the limit line 15. For example, (1) when the communication cable 1 exceeds the limit line 15 due to the protrusion or dropout of the communication cable 1, (2) the protrusion or dropout of the communication cable 1 is observed and is within the limit line 15. When the degree is large and there is a possibility of exceeding the limit line 15 due to the wind pressure due to the traveling of the elevator car 2, (3) squeezing or dropping of the communication cable 1 is observed, and the degree is small within the limit line 15, For example, there is no possibility of exceeding the limit line 15 due to the wind pressure caused by the traveling of the elevator car 2.

  Next, the control unit 20 selects the operation command stored in the storage unit 21 and transmits the command to the elevator control device 9 that controls the operation of the elevator car 2. For example, in the case of (1) described above, an operation command for stopping the operation of the elevator car 2 is selected. By this selection, the worker performs urgent maintenance work. In the case of (2), an operation command for decelerating the elevator car 2 is selected at the abnormality occurrence location. In order to avoid a decrease in service to elevator users, the influence of the wind pressure due to the traveling of the elevator car 2 is minimized so that the abnormal state of the communication cable 1 is not worsened. Maintenance work is performed at night. Furthermore, in the case of (3), the elevator car 2 selects an operation command that operates at a normal speed without pausing. Maintenance work is performed at night. These selected operation commands are transmitted to the elevator control device 9 to control the operation of the elevator.

  Furthermore, the control unit 20 transmits the abnormality information of the communication cable 1 and the operation status of the elevator car 2 to the display unit 23 as visual information. The display unit 23 displays the visual information transmitted from the control unit 20. The monitor recognizes the information on the abnormality of the communication cable 1 and the operation command of the elevator car 2 corresponding to the information on the display unit 23, and instructs the worker to perform maintenance if necessary.

  The recording unit 22 records position information of the elevator car 2. This is because when an abnormality occurs in the communication cable 1, the abnormality occurrence position is accurately specified. For example, when the detection unit 6 is a part of the elevator car 2 that operates in the hoistway 3, for example, the detection unit 6b mounted on the upper part thereof, the position of the elevator car 2 in which the abnormality of the communication cable 1 is confirmed is If it is known, it becomes possible to specify the abnormality occurrence position of the communication cable 1. On the other hand, when the detection unit 6 is the detection unit 6a installed in the elevator maintenance device 10 of the elevator machine room 5, the state of the laid communication cable 1 is detected by the monitoring camera from above, and the inside of the hoistway 3 is moved up and down. It is also possible to specify the abnormality occurrence position of the communication cable 1 with the elevator car 2 to be used as a clue. In the case of an infrared laser irradiation device, it is also possible to specify an abnormality occurrence position from reflection of the infrared laser. Therefore, there is a case where the abnormality occurrence position can be specified without the position information of the elevator car 2 by the recording unit 22. The position information of the elevator car 2 is calculated as the position of the elevator car 2 in the hoistway 3 using the operation speed of the elevator and the information on the stop floor of the elevator car 2 and recorded as data. And update. The control unit 20 transmits the position information of the elevator car 2 recorded in the recording unit 22 to the display unit 23 as an abnormality occurrence location at the timing when the detection unit 6 detects the abnormality of the communication cable 1. The display unit 23 displays visual information related to the abnormality occurrence location transmitted from the control unit 20.

  Furthermore, the control part 20 transmits the visual information about the operation condition of the elevator car 2 to the terminal 12 of the user in the building through the communication cable 1 in the building. This is because the operation state of the elevator car 2 is used by using the communication cable 1 in the building by providing a LAN switch or the like on the main wiring board 11 and installing resident software on the PC terminal of the user in the building. It is something to announce. Normally, when the operation of the elevator car 2 is stopped and maintenance is performed, the elevator user in the building cannot recognize the elevator operation stop unless he / she goes to the elevator hall. However, according to the notification using the communication cable 1 in the building, information can be obtained from the PC terminal in each room. The operation status of the elevator car 2 includes not only information that the elevator is stopped, but also related information such as information about an expected recovery time.

(Elevator maintenance equipment in the event of an earthquake)
The earthquake maintenance device 18 indicated by the broken line in FIGS. 1 and 4 is added to the elevator maintenance device 10 during an earthquake. In the following description, the same contents as those in the normal operation described above are omitted.

  The communication cable 1 is likely to cause an abnormality such as protrusion or dropping into the hoistway 3 after an earthquake. This is mainly due to the fact that the communication cable 1 vibrates at a different period from the wall body 13 due to the earthquake motion. Due to this vibration, the communication cable 1 may slip out between the communication cable 1 and the communication cable fixture 4, or the communication cable 1 may fall off due to elongation deformation of a plate or the like around which the communication cable 1 is wound. obtain. Furthermore, the wall 13 of the hoistway 3 may be complicatedly deformed by the vibration of the building, and the communication cable fixture 4 may be pulled out by a forcing force. Further, the communication cable fixture 4 may come off due to the influence of cracks generated in the concrete.

  In general, regarding the operation of an elevator after an earthquake, in the case of a slight shaking that does not cause damage to the elevator, after a certain period of time, it automatically returns to normal operation and a strong shaking ( When the operation is suspended due to a seismic intensity of about 4 or more, even if the elevator is not damaged, it is not restored until it is inspected by an engineer.

  Therefore, as shown in FIG. 4, the earthquake detection device 18 detects an earthquake with a P wave sensor or an S wave sensor, determines whether the earthquake is minor or strong, and determines the degree of the earthquake by the control unit 20. To call. In terms of operation, the boundary value is a seismic intensity of about 4 for slight or strong shaking.

  The storage unit 21 stores an operation command for stopping the operation of the elevator car 2 for a certain period of time when the earthquake is a slight shake, and restarting the operation when there is no strong shake during that time. Further, when the earthquake is a strong shaking, an operation command to stop the operation is stored.

  The control unit 20 selects an operation command of the elevator car 2 to stop the operation of the elevator car 2 when the earthquake is a slight shake with respect to the magnitude of the earthquake transmitted from the earthquake detection device 18. Then, the elevator controller 9 is instructed to perform an operation command to resume operation after a predetermined time has elapsed. In this case, even if it is a minor earthquake, there is a possibility that an abnormality has occurred in the communication cable 1 in the hoistway 3. Therefore, before restarting the operation of the elevator, it is preferable to detect the abnormality by detecting the state of the communication cable 1 as in the normal operation. On the other hand, when the earthquake is a strong shaking, an operation command to stop the operation is selected and commanded to the elevator control device 9. In this case, there is a high possibility that an abnormality has occurred in the communication cable 1 in the hoistway 3. Therefore, it is preferable that a technician quickly confirms the status of the communication cable 1 in the hoistway 3 by object recognition or image recognition by the elevator maintenance device 10 described above. When an abnormality occurs in the communication cable 1, maintenance is performed by an operator.

Moreover, the control part 20 transmits the visual information about the extent of an earthquake to the display part 23, and the display part 23 displays the visual information about the extent of an earthquake with the other information mentioned above. Furthermore, the control part 20 transmits the visual information about the extent of an earthquake with the other information to the user's terminal 12 in a building with the communication cable 1 in a building. Usually, when the operation of the elevator car 2 is stopped and maintenance is performed after the earthquake occurs, the elevator user in the building cannot recognize the stop of the operation of the elevator without going to the elevator hall. However, according to the notification using the communication cable 1 in the building, information can be obtained from the PC terminal in each room. The operation status of the elevator car 2 includes not only information that the elevator is stopped, but also related information such as information about an expected recovery time.
Also, for example, a warning message such as “If you are using a personal computer for important purposes, please stop using it” may be displayed.

It is explanatory drawing which shows the outline | summary of laying of the communication cable in a hoistway which concerns on this invention, and the structure of the outline of an elevator maintenance apparatus. It is explanatory drawing of the outline of the AA cross section of FIG. It is a front view of the outline of the fixing method of the communication cable laid in the hoistway. It is a system diagram of an elevator maintenance apparatus.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Communication cable, 2 Elevator car, 3 hoistway, 4 Communication cable fixing tool, 5 Elevator machine room, 6 Detection part, 6a Detection part in an elevator maintenance apparatus, 6b Detection part installed in the elevator car, 7 Video cable, 8 Control cable, 9 Elevator control device, 10 Elevator maintenance device, 11 Main wiring board, 12 User terminal, 13 Wall body, 15 Limit line, 16 Ceiling back, 17 Basement, 18 Earthquake detection device, 20 Control unit, 21 Memory Part, 22 recording part, 23 display part, 24 guide cable, 25 section steel, 26, 28 bolt, 27 turn buckle, 30 guide cable fixture.

Claims (7)

A detection unit that is laid in the elevator hoistway, detects the state of the communication cable connected to the user terminal in the building, and transmits abnormality information of the communication cable;
A storage unit that stores an operation command of the elevator car according to the degree of abnormality information of the communication cable;
The degree of abnormality information of the communication cable is determined from the abnormality information transmitted from the detection unit and the limit line of the position of the communication cable in the hoistway cross section set from the elevator car travel range, and stored in the storage unit A control unit that transmits a command to a control device that controls operation of the elevator car, and transmits the abnormality information of the communication cable and the operation status of the elevator car as visual information to the display unit;
A display for displaying the transmitted visual information;
Equipped with a,
The detection unit is provided in the elevator machine room located in the upper part of the hoistway, and detects the state of the communication cable downward from a hole provided in the floor of the elevator machine room.
An elevator maintenance device by detecting an abnormality in a communication cable in a hoistway. In the elevator maintenance device according to the abnormality detection of the communication cable in the hoistway according to claim 1, comprising a recording unit for recording position information of the elevator car,
The control unit identifies the location where the abnormality occurred in the communication cable from the abnormality information transmitted from the detection unit mounted on the elevator car and the position information of the elevator car recorded in the recording unit, and the abnormality occurrence location is visually detected. The elevator maintenance device by detecting an abnormality in the communication cable in the hoistway, wherein an operation command for decelerating and passing the elevator car is selected at an abnormality occurrence point.   3. The elevator maintenance apparatus according to claim 1 or 2, wherein the control unit detects visual information about the operation status of the elevator car by using the communication cable in the building. The elevator maintenance device by detecting an abnormality of the communication cable in the hoistway, characterized by being transmitted to. A detector that lays in the elevator hoistway and detects the state of the communication cable connected to the user's terminal in the building after the earthquake has occurred, and transmits abnormality information of the communication cable;
An earthquake detection device that detects the occurrence of an earthquake and transmits the extent of the earthquake;
A storage unit for storing an operation command of the elevator car according to the degree of the earthquake and the abnormality information of the communication cable;
A recording unit for recording the position information of the elevator car;
Determining the degree of abnormality information of the communication cable from the abnormality information transmitted from the detector and the limit line of the position of the communication cable in the hoistway cross section set from the elevator car travel range, and transmitting from the earthquake detection device The operation command stored in the storage unit is selected according to the level of the earthquake, and the command is transmitted to the control device that controls the operation of the elevator car. A control unit that transmits the operation status of the elevator car as visual information to the display unit,
A display for displaying the transmitted visual information;
Equipped with a,
The detection unit is provided in the elevator machine room located in the upper part of the hoistway, and detects the state of the communication cable downward from a hole provided in the floor of the elevator machine room.
An elevator maintenance device by detecting an abnormality in a communication cable in a hoistway.   5. The elevator maintenance apparatus according to claim 4, wherein the control unit detects visual information about the extent of the earthquake and the operation status of the elevator by using the communication cable in the building. An elevator maintenance device by detecting an abnormality in a communication cable in a hoistway, which is transmitted to a terminal.   The elevator maintenance device according to any one of claims 1 to 5, wherein the detection unit detects the state of the communication cable by object recognition. Elevator maintenance device by detecting abnormalities in   6. The elevator maintenance apparatus according to claim 1, wherein the detection unit detects the state of the communication cable by image recognition. 6. The elevator maintenance apparatus according to claim 1, wherein the detection unit detects the state of the communication cable by image recognition. Elevator maintenance device by detecting abnormalities in

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