JP2019104612A - Elevator door abnormality diagnostic system and abnormality diagnostic method thereof - Google Patents

Abstract

To diagnose a status of a machine prior to a maintenance inspection so as to prevent occurrence of a defect or failure of the machine and to prevent deterioration of service for users, by remotely controlling a set speed value of the door opening/closing without dispatching an operator to the site.SOLUTION: An elevator door abnormality diagnosis system is provided with: a remote control unit 21 which outputs a set speed value of door opening/closing of an elevator door 8 which is modified to a value different from that of the normal operation; a door opening/closing speed control unit (a door control unit 15) which inputs the modified set speed value of door opening/closing so as to control the opening/closing speed of the elevator door 8; a speed sensor 10 which measures the opening/closing speed of the elevator door 8; and an abnormality diagnosis unit (a door control unit 15) which determines whether there is an abnormality in the elevator door 8 by comparing the modified set speed value of door opening/closing and the speed value measured by the speed sensor 10.SELECTED DRAWING: Figure 2

Description

  Embodiments of the present invention relate to an elevator door abnormality diagnosis system and an abnormality diagnosis method.

  The elevator car door and the landing door (hereinafter, these doors are referred to as "elevator doors") repeat door opening and closing every time they stop on each floor, and the door parts are consumed and deteriorated due to long-term use. If an abnormality occurs in the door opening and closing while the elevator is operating, the elevator itself can not be operated, so regular maintenance and inspection is essential. In addition, the degree of wear and tear also differs depending on the installation location and use frequency of the elevator.

  2. Description of the Related Art Conventionally, there is a technology for detecting an inoperable failure of a safety shuttle from a load torque of a door and a door opening / closing position, and a system for predicting a door failure from a door opening / closing speed setting value and a door opening / closing operation time.

JP 2008-120471 A JP, 2016-179901, A

  In the conventional failure diagnosis of the elevator door, the elevator door is opened and closed by the door opening / closing speed setting value of the door set in advance, and the presence / absence of abnormality of the door device is diagnosed from the operation state. For this reason, it is necessary for maintenance inspectors to go to the site to confirm the state of the door device, and depending on the timing of the inspection, the device failure judgment may be delayed, and there is a possibility that device replacement can not be made in time. In addition, when there is a defect in the door device, it is difficult to grasp the detailed situation of the defect, it is difficult to identify the cause of the defect until the confirmation on the site, and the time to cope with the device failure It takes a lot.

  In view of the above circumstances, the present invention determines the state of the equipment in advance before maintenance inspection by remotely controlling the door opening / closing speed setting value of the elevator door even if the maintenance inspector is not dispatched to the site. It is possible to prevent the occurrence of equipment failure and failure in advance, and to prevent the service degradation to the user.

  The aspect for achieving the above object is a remote control unit that outputs a door opening / closing speed setting value in which the door opening / closing speed setting value of the elevator door is changed to a value different from that during normal operation, and the changed door opening / closing speed setting Door opening / closing speed control unit which controls the door opening / closing speed of the elevator door, a speed sensor which measures the door opening / closing speed of the elevator door, the changed door opening / closing speed setting value, and the speed sensor And an abnormality diagnosis unit that determines whether there is an abnormality in the elevator door by comparing it with the speed measurement value.

BRIEF DESCRIPTION OF THE DRAWINGS The whole block diagram of the abnormality diagnosis system of the elevator door which concerns on embodiment. BRIEF DESCRIPTION OF THE DRAWINGS The block diagram which shows the function structure of the abnormality diagnosis system of the elevator door which concerns on embodiment. 3 is a flowchart showing a processing procedure of the first embodiment. The flowchart which shows the process sequence of 2nd Embodiment. The flowchart which shows the process sequence of 3rd Embodiment. The flowchart which shows the process sequence of 4th Embodiment. The flowchart which shows the process sequence of 5th Embodiment. The flowchart which shows the process sequence of 6th Embodiment.

First Embodiment
FIG. 1 is an entire configuration diagram of an elevator door abnormality diagnosis system according to the embodiment, and FIG. 2 is a block diagram showing a functional configuration of the elevator door abnormality diagnosis system according to the embodiment.

  As shown in FIG. 1, an elevator door abnormality diagnosis system 100 includes an elevator control device (control board) 1 and a maintenance center 2 connected to the elevator control device 1 via a communication line. The elevator control device 1 controls the operation of the car 4 installed in the hoistway 3. The car 4 is connected to the counterweight 5 by a rope and moves up and down in the hoistway 3 via the hoisting machine 6 and the deflecting sheave 7.

  The car 4 includes an elevator door 8 to be subjected to abnormality diagnosis, a door motor 9 for opening and closing the elevator door 8, a speed sensor 10 for measuring the opening and closing speed of the elevator door 8, a sill sensor 11, and a load sensor 12. , Camera 13 in the car is installed.

  The elevator door 8 is composed of a car door and a landing door that opens and closes in conjunction with the car door. The speed sensor 10 detects the speed of the car door and the landing door, for example, applies light to the door and measures the speed by changing the frequency of the reflected wave, or detects the rotation speed of the hanger roller of the door hanger Can be configured with

  The sill sensor 11 generates sill sensor information by detecting whether dust or foreign matter is present in each sill of the car door and the landing door. The sill sensor includes, for example, a light projector and a light receiver, and a reflector. The light projected from the light projector is reflected by the light reflector, and the reflected light is received by the light receiver to detect the presence of dust and foreign matter.

  The load sensor 12 generates load sensor information by measuring whether or not the user is in the car 4, and is installed on the bottom of the car 4, a car frame, or the like.

  The in-car camera 13 includes both a surveillance camera in the car 4 and a door camera installed immediately above the car door. The surveillance camera has a function of monitoring the entire interior of the car including the car door. In addition, the door camera has a function of monitoring the user's getting on and off behavior centering on the user near the door.

  A landing camera 14 is installed at the landing of each floor. The hall camera 14 captures an image of the vicinity of the door from the hall, and takes in as hall camera image information whether a user is present near the door or not and whether the door is normally opened or closed.

  The speed sensor information of the speed sensor 10, the sill sensor information of the sill sensor 11, the load sensor information of the load sensor 12, the in-car camera image information of the in-car camera 13, and the hall camera image information of the hall camera 14 are output to the elevator control device 1 ing.

  As shown in FIG. 2, the elevator control device 1 includes a door control unit 15, an input / output unit 16, and a door opening / closing number storage unit 17.

  The door control unit 15 controls the door opening and closing of the elevator door 8 by driving the door motor 9 based on the door opening and closing speed setting value. In addition, the door opening and closing time is calculated from the speed measurement value of the speed sensor at the time of door opening and closing execution based on the changed door opening and closing speed setting value, and the door opening and closing time calculated with the door opening and closing speed setting value And an abnormality diagnosis function that determines whether there is an abnormality in the elevator door from the difference between The door control unit 15 constitutes a door opening / closing speed control unit and an abnormality diagnosis unit.

  The input / output unit 16 includes speed sensor information from the speed sensor 10, sill sensor information from the sill sensor 11, load sensor information from the load sensor 12, in-car camera image information from the in-car camera 13, and a hall from the hall camera 14. Enter camera image information. Also, it outputs various information that has been input to the door control unit 15.

  The door opening / closing number storage unit 17 stores the door opening / closing number during elevator operation. The stored door opening / closing number is used to diagnose the remaining life of the door component and the like.

  The maintenance center 2 includes a remote control unit 21 and an elevator state confirmation unit 22.

  The remote control unit 21 changes the door opening / closing speed setting value of the door at the time of abnormality diagnosis of the door, and outputs the door opening / closing speed change value to the door control unit 15 of the elevator control device 1.

  The elevator state check unit 22 has a function of storing information on door opening / closing speed of the elevator door before and after changing the door opening / closing speed setting value, various data, an abnormality diagnosis result, and the like. It also has a function of displaying the result of abnormality diagnosis on the monitor screen.

<< Processing Procedure of First Embodiment >>
FIG. 3 is a flowchart showing the processing procedure of the first embodiment. The control program shown by this flowchart is implemented by the elevator control device 1.

  In performing the remote diagnosis of the elevator door 8, first, the remote control unit 21 of the maintenance center 2 changes the normal door opening / closing speed setting value. The changed door opening / closing speed setting value (also referred to as "speed command change value") is input to the door control unit 15 of the elevator control device 1 via the communication line (steps S1 and S2). The door control unit 15 opens and closes the door motor 9 according to the input speed command change value (step S3). For example, door opening / closing is performed by a speed command change value set to a speed lower than a normal door opening / closing speed setting value, and it is diagnosed whether the door opening / closing is performed smoothly.

  The actual door opening / closing speed according to the speed command change value is measured by the speed sensor 10. The measurement result is transmitted to the door control unit 15 through the input / output unit 16. The door control unit 15 determines whether the measured door opening / closing speed follows the speed command change value.

  As a result of confirming the door opening / closing speed by the door control unit 15, when the door opening / closing speed follows the speed command change value, that is, when the door opening / closing speed is not low, the elevator state confirmation unit 22 At the same time, a return command to restore the door opening / closing speed setting value to the original is transmitted to the maintenance center 2 (S11). The remote control unit 21 of the maintenance center 2 changes the door opening / closing speed setting value to the original value, and the original door opening / closing speed setting value (also referred to as “speed command reference value”) is transmitted to the door control unit 15. A door opening / closing speed change value is transmitted from the door control unit 15 to the input / output unit 16, the door opening / closing speed change value is transmitted to the door motor 9, and the door opening / closing speed is changed. After returning from the door opening / closing speed change value to the original speed command reference value, a return completion signal is transmitted from the door control unit 15 to the remote control unit 21, and the return completion signal is sent to the elevator status confirmation unit 22 via the remote control unit 21. Then, the elevator returns to the normal operation mode to end the abnormality diagnosis processing (steps S13, S14, and S15).

  On the other hand, when the door opening / closing speed is slowed (step S4 YES), the door control unit 15 changes the door opening / closing speed setting value of the door changed by the remote control unit 21 and the door opening / closing time measured by the speed sensor 10. The comparison with the door opening / closing time at the normal time is performed to determine whether there is an abnormality in the device (step S5). When an abnormality is detected (YES in step S6), the determination result of the device abnormality is transmitted from the door control unit 15 to the elevator state confirmation unit 22 via the remote control unit 21 (step S8), and the door opening / closing speed setting value And the door door opening / closing speed, and the determination result that there is an abnormality in the door device are held (S10). If no abnormality is detected, the determination result of no equipment abnormality is transmitted from the door control unit 15 to the elevator state confirmation unit 22 via the remote control unit 21 and the door opening / closing speed setting value and the door opening / closing speed at that time; And the determination result of door apparatus abnormality absence is hold | maintained (step S7).

  Next, a return command is transmitted from the door control unit 15 to the remote control unit 21, and this return command is held by the elevator state check unit 22 (step S11).

  When the speed control reference value is transmitted from the remote control unit 21 to the door control unit 15 in response to the return designation (step S13), the speed control reference value input from the door control unit 15 is returned to the initial setting value. If it is not equal to the initial value, transmission of the return instruction is continued to the elevator state confirmation unit 22 (step S13 NO). When the door control unit 15 determines that the door opening / closing speed setting value is an initial value, the door control unit 15 transmits a door opening / closing speed change value to the door motor 9, and the speed sensor 10 has no abnormality in the door opening / closing operation. If it is determined that the vehicle is in the normal operation (steps S14 and S15).

  As described above, according to the first embodiment, the elevator door opening / closing speed setting value is changed, the elevator door opening / closing speed is measured, and the elevator door opening / closing speed at the normal time is compared with the elevator It becomes possible to judge the presence or absence of abnormality of door peripheral equipment.

  As a result, by remotely controlling the door opening / closing speed setting value of the elevator door even without the maintenance inspectors being dispatched to the site, it becomes possible to judge the state of the equipment in advance before the maintenance inspection, and the equipment malfunction and failure Prevent the occurrence of a problem and prevent the deterioration of service to users.

Second Embodiment
The overall configuration diagram and functional configuration diagram of the elevator door abnormality diagnosis system according to the second embodiment are the same as in FIG. 1 and FIG.

  In the second embodiment, the state of the door opening / closing operation of the elevator door 8 is monitored by the camera image information from the in-car camera 13 and the landing camera 14, and the abnormality diagnosis of the elevator door is performed by the camera image information. Camera image information captured by the in-car camera 13 and the landing camera 14 is transmitted to the door control unit 15 via the input / output unit 16, and the door control unit 15 via the remote control unit 21 to the elevator status confirmation unit 22. It is transmitted and held as camera image information.

<< Processing Procedure of Second Embodiment >>
FIG. 4 is a flowchart showing the processing procedure of the second embodiment. The control program shown by this flowchart is implemented by the elevator control device 1. The same processes as those in the flowchart shown in FIG. 3 have the same step numbers, and the description thereof will be omitted.

  In the second embodiment, when the actual door opening / closing speed due to the speed command change value is slowed (YES in step S4), first, captured camera image information is input and compared with normal camera image information (step S4) S21). Next, the door control unit 15 compares the door opening / closing speed setting value of the door changed by the remote control unit 21 with the door opening / closing time measured by the speed sensor 10 and the door opening / closing time at normal time. The presence or absence is determined (step S5). If an abnormality is detected in both the camera image information and the door opening and closing time (YES in step S6), the determination result of the device abnormality is transmitted from the door control unit 15 to the elevator state confirmation unit 22 via the remote control unit 21 (step S8), camera image information, door door opening / closing speed setting value, door door opening / closing speed, and determination result of door apparatus abnormality presence are held (S10). When no abnormality is detected, the determination result of no equipment abnormality is transmitted from the door control unit 15 to the elevator state confirmation unit 22 through the remote control unit 21 and camera image information at that time, door opening / closing speed setting value, door The determination result of the door opening / closing speed and the absence of door apparatus abnormality is held (step S7). The following processing is the same as the flowchart of FIG.

  As described above, according to the second embodiment, in addition to the effects of the first embodiment, the surveillance camera installed around the door displays an image of the door operation state after the door opening / closing speed change and the door operation state at the normal time. By processing and comparing, it becomes possible to study from a distance the door abnormal point which affects the door opening / closing speed, and it becomes possible to shorten the time for detecting the failed point at the site.

Third Embodiment
The overall configuration diagram and functional configuration diagram of the elevator door abnormality diagnosis system according to the third embodiment are the same as in FIG. 1 and FIG.

  In the second embodiment, the abnormality diagnosis of the elevator door 8 is performed based on the camera image information, but in the third embodiment, the abnormality diagnosis of the elevator door is performed based on the sill waste information from the sill sensor 11 It is characterized by

<< Processing Procedure of Third Embodiment >>
FIG. 5 is a flowchart of elevator control contents according to the third embodiment. The control program shown by this flowchart is implemented by the elevator control device 1. The operation will be described with reference to the flowchart shown in FIG. The same processes as those in the flowchart shown in FIG. 3 have the same step numbers, and the description thereof will be omitted.

  In the second embodiment, when the actual door opening / closing speed by the speed command change value is slowed (YES in step S4), first, sill dust information from the sill sensor 11 is input to determine presence / absence of dust (step S22) ). Next, the door control unit 15 compares the door opening / closing speed setting value of the door changed by the remote control unit 21 with the door opening / closing time measured by the speed sensor 10 and the door opening / closing time at normal time. The presence or absence is determined (step S5). When an abnormality is detected in both the sill trash information and the door opening and closing time (step S6 YES), the determination result of the device abnormality presence is transmitted from the door control unit 15 to the elevator state confirmation unit 22 via the remote control unit 21 (step S8), sill waste information, door door opening / closing speed setting value, door door opening / closing speed, and determination result of door apparatus abnormality presence are held (S10). When no abnormality is detected, the determination result of no equipment abnormality is transmitted from the door control unit 15 to the elevator state confirmation unit 22 via the remote control unit 21 and the sill information at that time, the door opening / closing speed setting value, the door The door opening / closing speed and the determination result of no door device abnormality are stored (step S7). The following processing is the same as the flowchart of FIG.

  As described above, according to the third embodiment, in addition to the effects of the first embodiment, the presence or absence of an object caught in the sill is determined from the sill sensor 11 installed on the sill, and the speed and normality after changing the door opening and closing speed By comparing the door opening / closing speed at the time, it becomes possible to study from a distance the door abnormal point that affects the door opening / closing speed, and it becomes possible to shorten the time for detecting the failure point at the site.

Fourth Embodiment
The overall configuration diagram and functional configuration diagram of the elevator door abnormality diagnosis system according to the fourth embodiment are the same as in FIG. 1 and FIG.

  In the fourth embodiment, the abnormality diagnosis of the elevator door 8 is performed from the sill dust sensor information from the sill sensor 11 and the camera image information from the in-car camera 13 and the landing camera.

<< Processing Procedure of Fourth Embodiment >>
FIG. 6 is a flowchart of elevator control contents according to the fourth embodiment. The control program shown by this flowchart is implemented by the elevator control device 1. The same processes as those in the flowchart shown in FIG. 3 have the same step numbers, and the description thereof will be omitted.

  In the second embodiment, when the actual door opening / closing speed due to the speed command change value is slowed (YES in step S4), first, captured camera image information is input and compared with normal camera image information (step S4) S21). Next, sill trash information from the sill sensor 11 is input to determine the presence or absence of trash (step S22). Next, the door control unit 15 compares the door opening / closing speed setting value of the door changed by the remote control unit 21 with the door opening / closing time measured by the speed sensor 10 and the door opening / closing time at normal time. The presence or absence is determined (step S5). When abnormality is detected in the three parties of the sill dust information, the camera image information and the door opening and closing time (step S6 YES), the judgment result of the equipment abnormality existence from the door control unit 15 through the remote control unit 21 is the elevator state confirmation unit 22 (Step S8), and sill information, camera image information, door door opening / closing speed set value, door door opening / closing speed, and determination result of door apparatus abnormality presence are held (S10). When no abnormality is detected, the determination result of no equipment abnormality is transmitted from the door control unit 15 to the elevator state confirmation unit 22 through the remote control unit 21, and the sill information, camera image information, door opening / closing speed at that time The determination result of the setting value, the door opening / closing speed, and the absence of door apparatus abnormality is held (step S7). The following processing is the same as the flowchart of FIG.

  As described above, according to the fourth embodiment, in addition to the effects of the second embodiment, the presence or absence of an object pinched by the sill is determined from the sill sensor 11, and camera image information is taken into consideration. By comparing the door opening / closing speed at a later time with the normal speed, it becomes possible to study from a distance the door abnormal point that affects the door opening / closing speed, and to shorten the time for detecting the failure point in the field. Is possible.

Fifth Embodiment
The overall configuration diagram and functional configuration diagram of the elevator door abnormality diagnosis system according to the fifth embodiment are the same as in FIG. 1 and FIG.

  In the fifth embodiment, by measuring the loading of the car by the load sensor 12, it is determined whether or not a person is on the car. Further, the state of the door opening / closing operation is monitored by the landing camera 14. Camera image information captured by the landing camera 14 is transmitted to the door control unit 15 through the input / output unit 16, and transmitted from the door control unit 15 to the status display unit 8 through the remote control unit 21. Image information is displayed. Further, the elevator control device 1 has a door opening and closing number storage unit 17 that detects the number of opening and closing of the door.

<< Processing Procedure of Fifth Embodiment >>
FIG. 7 is a flowchart of elevator control contents according to the fifth embodiment. The control program shown by this flowchart is implemented by the elevator control device 1.

  First, in step 212, the door opening / closing number counting signal is transmitted from the door opening / closing number storage unit 17 to the door control unit 15. If the door opening / closing number (the number of reopenings) is equal to or less than a predetermined value, normal operation is continued (step 31). If the door opening / closing number is repeated a plurality of times and the number is greater than or equal to a predetermined number (step S32), the car loading information is transmitted from the load sensor 12 to the input / output unit 16 and the door control unit 15 determines the presence or absence of car loading ((S32) Step S33) If there is loading, it is judged that a person is in the vehicle (being a human factor) and the normal operation is performed (steps S35 and S39). When it is determined that the car is not loaded, camera image information output from the landing camera 14 is transmitted to the door control unit 15 through the input / output unit 16 and the door control unit 15 determines the presence or absence of the user near the door. To be done. If it is determined that there is a user near the door (YES in step S35), it is determined that a person is in the vicinity of the door (which is a human factor) and the normal operation is performed (steps S35 and S39). If there is no user near the door (step S35 NO), it is determined that the cause of the door opening is due to a door equipment failure (step S36), and the door control unit 15 transmits a car forced door closing signal to the door motor 9, The opening / closing speed setting value is changed (step S37). When the door is closed after the door opening / closing speed setting value is changed, the door opening / closing speed change value is transmitted from the door control unit 15 to the door motor 9, and the door opening / closing speed setting value is returned to the initial value (reference value). Then, the operation is ended (step S39).

  As described above, according to the fifth embodiment, the cause of the door opening is not due to the human being pinched by the door opening / closing times, the load information of the load sensor 12 and the camera image information of the landing camera 14 By changing the door opening / closing speed setting value of the door and closing the door when it is determined, it is possible to reduce the influence on the elevator operation control due to the door failure.

Sixth Embodiment
The overall configuration diagram and functional configuration diagram of the elevator door abnormality diagnosis system according to the sixth embodiment are the same as in FIG. 1 and FIG.

  In the sixth embodiment, the remaining life of the door is diagnosed, and the result confirmation of the remaining life of the door is held in the elevator state confirmation unit 22.

  As door parts which constitute an elevator door, there are a door hanger, a hanger rail, an electric pulley, an electric rope, etc. in addition to the door motor 9. The life (service life) of these is predetermined for each door part. The remaining life of these door parts changes depending on the number of open / close doors, the number of years of use, and the state of use.

  Therefore, in the sixth embodiment, the service life of each of the door parts constituting the elevator door, the service life calculated from the service time (ageing time, door opening / closing number) and the service life calculated from the service time are listed. The elevator state confirmation unit 22 is stored so as to be updateable. When the remaining life on calculation decreases, for example, the remaining life diagnosis is started from the time when the number of door opening and closing has reached a preset number of times or more. Specifically, the remote control unit 21 of the maintenance center 2 sequentially changes the door opening and closing setting value in stages, and sequentially transmits it as the speed command change value to the door control unit 15 to execute door opening and closing. Then, the remaining life is determined by sequentially comparing the speed information from the speed sensor 10 and the door opening / closing time with the case using the reference value.

  In addition, the door parts also change depending on the use state. For example, the first floor (reference floor) where door opening and closing is repeated frequently is more worn out than the doors on other floors. In addition, the floor where the wind is strong is heavier on the door. The life diagnosis cycle may be changed by the machine in consideration of these various conditions. Further, the cycle of the first floor abnormality diagnosis may be made earlier than the diagnosis cycle of the other floors. By determining the remaining life of the elevator doors individually and executing the abnormality diagnosis, it is possible to prevent the occurrence of an abnormality.

<< Processing Procedure of Sixth Embodiment >>
FIG. 8 is a flowchart showing the processing procedure of the sixth embodiment. The control program shown by this flowchart is implemented by the elevator control device 1. The same processes as those in the flowchart shown in FIG. 3 have the same step numbers, and the description thereof will be omitted.

  First, at step 219, the door opening / closing speed setting value is sequentially changed from the remote control unit 21, and the changed door opening / closing speed setting value (speed command change value) is transmitted and transmitted to the door control unit 15 (step S41, S42). The speed command change value transmitted to the door control unit 15 is sequentially transmitted to the door motor 9, and the door opening / closing operation is sequentially performed by the speed command change value (step S43). The door control unit 15 compares the door opening / closing time set with the door opening / closing speed setting value changed by the remote control unit 21 with the door opening / closing time measured by the speed sensor 10 and the door opening / closing time when normal and analyzes the remaining life (step S45). The analysis result is transmitted from the door control unit 15 to the elevator state confirmation unit 22 via the remote control unit 21 and stored (steps S46, S47, S48). The following processing is the same as the flowchart of FIG.

  As described above, according to the sixth embodiment, when the remote control unit 21 sequentially changes the door opening / closing speed setting value, diagnosis of the device state is performed for each of the changed door opening / closing speed setting values, It is possible to determine the remaining life of the door device.

  In the above embodiments, the door opening / closing speed setting value changed changes the door opening / closing speed. However, the door opening / closing speed may be increased. In some cases, dirt and foreign matter from the sill can be eliminated by increasing the door opening and closing speed. In addition, the remaining life of the door parts may also be diagnosed by increasing the door opening / closing speed.

  While certain embodiments have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and the gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.

  DESCRIPTION OF SYMBOLS 1 ... Elevator control apparatus (control panel), 2 ... Maintenance center, 3 ... A hoistway, 4 ... Carb, 5 ... Balance weight, 6 ... Winding machine, 7 ... A sheave, 8 ... Elevator door, 9 ... Door motor, DESCRIPTION OF SYMBOLS 10 ... speed sensor, 11 ... sill sensor, 12 ... load sensor, 13 ... in-car camera, 14 ... landing camera, 15 ... door control unit (door opening / closing speed control unit, abnormality diagnosis unit), 16 ... input / output unit, 17 ... Door opening / closing number storage unit 21 remote control unit 22 elevator state confirmation unit 100 elevator door abnormality diagnosis system.

Claims (6)

A remote control unit that outputs a door opening / closing speed setting value obtained by changing the door opening / closing speed setting value of the elevator door to a value different from that during normal operation;
A door opening / closing speed control unit which controls the door opening / closing speed of the elevator door by inputting the changed door opening / closing speed setting value;
A speed sensor that measures the door opening / closing speed of the elevator door;
An abnormality diagnosis unit that determines whether the elevator door is abnormal by comparing the changed door opening / closing speed setting value with the speed measurement value of the speed sensor;
An elevator door abnormality diagnosis system comprising: Input camera image information from a camera capable of confirming the operation of the elevator door,
The abnormality diagnosis unit detects a door abnormality point by comparing camera image information of door opening and closing based on the door opening and closing speed setting value as a reference with camera image information of door opening and closing based on the changed door opening and closing speed setting value. The elevator door abnormality diagnosis system according to claim 1, wherein the elevator door abnormality diagnosis system is an elevator door abnormality diagnosis system. It has a sill sensor that detects the condition of elevator elevators,
The abnormality diagnosis unit compares the detection information of the sill sensor when the door is normal with the detection information of the sill sensor based on the door door opening / closing speed setting value after change, and determines the presence or absence of abnormality of the door based on the comparison result. The abnormality diagnosis system for an elevator door according to claim 1 or 2. A load sensor for detecting the load in the car;
Door opening / closing number storage unit that detects and stores the door opening / closing number that counts the door opening / closing number;
The door opening / closing speed control unit determines whether or not the door is pinched by a person from the counted door opening / closing number, camera image information from the camera, and load information from the load sensor, and the person is caught in the door The elevator door abnormality diagnosis system according to claim 2, wherein the door door opening / closing speed set value is changed to forcibly close the door when the door is not closed. The remote control unit outputs the door opening / closing speed setting value which is sequentially changed,
The door opening / closing speed control unit sequentially controls the door opening / closing speed of the elevator door by inputting the door opening / closing speed setting value sequentially changed from the remote control unit,
5. A function to judge the remaining life of a door device by comparing the door opening and closing time as a reference with the measured door opening and closing time for each sequentially changed door opening and closing speed setting value. An elevator door abnormality diagnosis system according to any one of the preceding claims. Send the changed door opening / closing speed setting value to the elevator control device from the maintenance center at a remote location via the communication line,
In the elevator control device, the door opening / closing speed of the elevator door is controlled by inputting the changed door opening / closing speed setting value,
Abnormality of the elevator door from the difference between the door opening / closing time based on the door opening / closing speed setting value as a reference and the door opening / closing time calculated from the speed measurement value of the speed sensor at the door opening / closing execution time A method for diagnosing abnormality in an elevator door, comprising determining presence or absence.

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