JP6479949B1 - Elevator door abnormality diagnosis system and abnormality diagnosis method - Google Patents

Abstract

[PROBLEMS] By remotely controlling the door opening / closing speed setting value of an elevator door without requiring a maintenance inspector to visit the site, it is possible to judge the state of the device in advance before maintenance inspection, Prevents breakdowns and prevents service degradation for users. 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, and the changed door opening / closing speed setting value are input. The door opening / closing speed control unit (door control unit 15) for controlling the door opening / closing speed of the elevator door 8, the speed sensor 10 for measuring the door opening / closing speed of the elevator door 8, the changed door opening / closing speed setting value, and the speed An abnormality diagnosing unit (door control unit 15) that determines whether or not the elevator door 8 is abnormal by comparing the measured speed value of the sensor 10 is provided. [Selection] Figure 2

Description

  Embodiments described herein relate generally to an elevator door abnormality diagnosis system and an abnormality diagnosis method.

  Elevator car doors and landing doors (hereinafter referred to as “elevator doors”) are repeatedly opened and closed each time they are stopped on each floor, and the door parts are consumed and deteriorated due to prolonged use. Periodic maintenance and inspection are indispensable because the operation of the elevator itself cannot be performed if an abnormality occurs in the door opening and closing during the operation of the elevator. Also, the degree of wear and deterioration varies depending on the location of the elevator and the frequency of use.

  2. Description of the Related Art Conventionally, there are systems for predicting a door failure from a door load torque and a door opening / closing position to detect a safety non-operation failure or a door opening / closing speed setting value and a door opening / closing operation time.

JP 2008-120471 A JP, 2006-179901, A

  In the conventional failure diagnosis of an elevator door, the elevator door is opened and closed based on a door opening / closing speed setting value set in advance, and the presence / absence of an abnormality of the door device is diagnosed from the operation state. For this reason, it is necessary for a maintenance inspector to go to the site to check the state of the door device. Depending on the timing of the inspection, the device failure determination may be delayed, and the device replacement may not be in time. Also, when there is a malfunction in a door device, it is difficult to grasp the detailed status of the malfunction, and it is difficult to identify the cause of the malfunction until it is confirmed on-site. It takes a lot.

  In view of the above circumstances, the present invention can remotely determine the door opening / closing speed setting value of the elevator door even if a maintenance inspector does not visit the site, so that the state of the device can be determined in advance before the maintenance inspection. It is possible to prevent the occurrence of equipment malfunctions and failures, and to prevent service degradation for users.

  A mode for achieving the above object is to provide a remote control unit for outputting 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, and the changed door opening / closing speed setting. A door opening / closing speed control unit that controls the door opening / closing speed of the elevator door by inputting a value, a speed sensor that 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 diagnosing unit for determining whether or not the elevator door is abnormal by comparing the measured speed values.

1 is an overall configuration diagram of an elevator door abnormality diagnosis system according to an embodiment. The block diagram which shows the function structure of the abnormality diagnosis system of the elevator door which concerns on embodiment. The flowchart which shows the process sequence of 1st 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 overall configuration diagram of an elevator door abnormality diagnosis system according to the embodiment, and FIG. 2 is a block diagram illustrating 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 panel) 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 through the hoist 6 and the deflecting sheave 7.

  The car 4 includes an elevator door 8 to be diagnosed for abnormality, 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. A car camera 13 is installed.

  The elevator door 8 includes 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, the speed sensor 10 measures the speed by changing the frequency of the reflected wave by applying light to the door, or detects the rotation speed of the hanger roller of the door hanger. It can be composed of what to do.

  The sill sensor 11 generates sill sensor information by detecting whether or not dirt, foreign matter, or the like exists in each sill of the car door and the landing door. As the sill sensor, for example, a projector, a light receiver, and a reflector are provided. The light projected from the projector is reflected by the reflector, and the reflected light is received by the receiver to detect the presence of dust and foreign matter.

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

  The in-car camera 13 includes both a surveillance camera in the car 4 and a door camera installed just 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 behavior of the user getting on and off with the user in the vicinity of the door.

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

  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 landing camera image information of the landing 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 / closing of the elevator door 8 by driving the door motor 9 based on the door opening / closing speed setting value. Also, the door opening and closing time is calculated from the speed measurement value of the speed sensor when the door opening and closing is executed based on the changed door opening and closing speed setting value, and the door opening and closing time based on the reference door opening and closing speed setting value and the calculated door opening and closing time are calculated. And an abnormality diagnosis function for determining the presence or absence of an abnormality in the elevator door from the difference. 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 car camera 13, and landing from the landing camera 14. Enter camera image information. Also, the input various information is output 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 for diagnosing the remaining life of door parts.

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

  The elevator state confirmation unit 22 has a function of storing information on the door opening / closing speed of the elevator door before and after the door opening / closing speed setting value is changed, various data, an abnormality diagnosis result, and the like. It also has a function of displaying the abnormality diagnosis result 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 in this flowchart is implemented in 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, the door opening / closing is executed based on the speed command change value set slower than the normal door opening / closing speed setting value, and it is diagnosed whether the door opening / closing is executed smoothly.

  The actual door opening / closing speed based on the speed command change value is measured by the speed sensor 10. The measurement result is transmitted to the door control unit 15 via the input / output unit 16. The door control unit 15 determines whether or not the measured door opening / closing speed follows the speed command change value.

  As a result of checking 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 slow, the elevator state confirmation unit 22. A return command for returning the door opening / closing speed setting value to the original value 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, and the door opening / closing speed change value is transmitted to the door motor 9 to change the door door opening / closing speed. 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 state confirmation unit 22 via the remote control unit 21. The elevator returns to the normal operation mode and ends the abnormality diagnosis process (steps S13, S14, S15).

  On the other hand, if the door opening / closing speed is slow (step S4 YES), the door controller 15 sets the door opening / closing speed setting value changed by the remote controller 21 and the door opening / closing time measured by the speed sensor 10. Comparison with the normal door opening and closing time is performed to determine whether there is an abnormality in the device (step S5). When an abnormality is detected (YES in step S6), a determination result indicating that there is a 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 door opening / closing speed setting value is set. And the door door opening / closing speed and the determination result that there is a door device abnormality are held (S10). When no abnormality is detected, a determination result that there is 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 door opening / closing speed at that time, And the determination result that there is no door device abnormality is held (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 in the elevator state confirmation unit 22 (step S11).

  When the speed command 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 command reference value input by the door control unit 15 returns to the initial setting value. If it is not the same value as the initial value, a return command is continuously transmitted to the elevator state confirmation unit 22 (NO in step S13). When the door controller 15 determines that the door opening / closing speed setting value is the initial value, the door controller 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 door opening / closing operation. If it is determined, the routine shifts to 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 compared with the normal elevator door opening / closing speed. It is possible to determine whether there is an abnormality in the door peripheral device.

  As a result, it is possible to judge the state of the equipment in advance before maintenance inspection by remotely controlling the door opening / closing speed setting value of the elevator doors even if the maintenance inspector is not sent to the site. To prevent the occurrence of problems and prevent service degradation for users.

Second Embodiment
Since the overall configuration diagram and functional configuration diagram of the elevator door abnormality diagnosis system according to the second embodiment are the same as those in FIGS. 1 and 2, these will be described with the aid of them.

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

<< Processing Procedure of Second Embodiment >>
FIG. 4 is a flowchart showing a processing procedure of the second embodiment. The control program shown in this flowchart is implemented in the elevator control device 1. The same processes as those in the flowchart shown in FIG.

  In the second embodiment, when the actual door opening / closing speed due to the speed command change value is slow (step S4 YES), first, the captured camera image information is input and compared with the normal camera image information (step S4). S21). Next, the door control unit 15 compares 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 normal door opening / closing time. The presence or absence is determined (step S5). When an abnormality is detected in both the camera image information and the door opening / closing time (step S6 YES), a determination result indicating that there is a device abnormality is transmitted from the door control unit 15 to the elevator state confirmation unit 22 via the remote control unit 21 (step S6). S8), camera image information, door door opening / closing speed setting value, door door opening / closing speed, and door device abnormality determination result are held (S10). When no abnormality is detected, a determination result indicating that there is no device abnormality is transmitted from the door control unit 15 to the elevator state confirmation unit 22 via the remote control unit 21, and the camera image information, door opening / closing speed setting value, door at that time The door opening / closing speed and the determination result that there is no door device abnormality are 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, images of the door operation state after changing the door opening / closing speed and the door operation state at normal time are displayed by the monitoring camera installed around the door. By processing and comparing, it is possible to examine the door abnormal part that affects the door door opening / closing speed from a distance, and it is possible to shorten the time for detecting the fault part at the site.

<Third Embodiment>
Since the overall configuration diagram and functional configuration diagram of the elevator door abnormality diagnosis system according to the third embodiment are the same as those in FIGS. 1 and 2, these will be described with the aid of them.

  In the second embodiment, abnormality diagnosis of the elevator door 8 is performed based on the camera image information. In the third embodiment, abnormality diagnosis of the elevator door is performed based on the sill dust 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 in this flowchart is implemented in 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.

  In the second embodiment, when the actual door opening / closing speed due to the speed command change value is slow (step S4 YES), first, the sill dust 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 changed by the remote control unit 21 with the door opening / closing time measured by the speed sensor 10 and the normal door opening / closing time. The presence or absence is determined (step S5). When an abnormality is detected in both the sill garbage information and the door opening / closing time (YES in step S6), a determination result indicating that there is a device abnormality is transmitted from the door control unit 15 to the elevator state confirmation unit 22 via the remote control unit 21 (step S6). S8), sill garbage information, door door opening / closing speed setting value, door door opening / closing speed, and determination result of door device abnormality are held (S10). When no abnormality is detected, a determination result indicating that there is no device 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 garbage information, door opening / closing speed setting value, door at that time The door opening / closing speed and the determination result indicating that there is 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 sandwiched between the sill is determined from the sill sensor 11 installed on the sill, and the speed after changing the door opening / closing speed is normal. By comparing the door opening / closing speed at the same time, it is possible to examine the door abnormal part that affects the door door opening / closing speed from a distance, and it is possible to shorten the time for detecting the faulty part 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 those 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 in this flowchart is implemented in the elevator control device 1. The same processes as those in the flowchart shown in FIG.

  In the second embodiment, when the actual door opening / closing speed due to the speed command change value is slow (step S4 YES), first, the captured camera image information is input and compared with the normal camera image information (step S4). S21). Next, the sill dust 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 changed by the remote control unit 21 with the door opening / closing time measured by the speed sensor 10 and the normal door opening / closing time. The presence or absence is determined (step S5). If an abnormality is detected in the three cases of silly garbage information, camera image information, and door opening / closing time (YES in step S6), a determination result indicating that there is a device abnormality is sent from the door control unit 15 via the remote control unit 21 to the elevator state confirmation unit 22 (Step S8), the sill garbage information, the camera image information, the door door opening / closing speed setting value, the door door opening / closing speed, and the determination result that there is an abnormality in the door device are held (S10). When no abnormality is detected, a determination result indicating that there is no device abnormality is transmitted from the door control unit 15 to the elevator state confirmation unit 22 via the remote control unit 21, and at that time, sill garbage information, camera image information, door opening / closing speed The set value, the door door opening / closing speed, and the determination result that there is no door device abnormality are 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 sandwiched between the sill sensor 11 and the camera image information is taken into account, and the door opening / closing speed is changed. By comparing the speed of the door later and the door opening / closing speed under normal conditions, it becomes possible to examine the door abnormal part that affects the door door opening / closing speed from a distance, and to reduce the time to detect the faulty part in the field. Is possible.

<Fifth Embodiment>
Since the overall configuration diagram and functional configuration diagram of the elevator door abnormality diagnosis system according to the fifth embodiment are the same as those in FIGS. 1 and 2, these will be described with the aid of them.

  In the fifth embodiment, whether or not a person is on the car is determined by measuring the loading of the car with the load sensor 12. In addition, the landing camera 14 monitors the state of the door door opening / closing operation. Camera image information captured by the landing camera 14 is transmitted to the door control unit 15 via the input / output unit 16, transmitted from the door control unit 15 to the status display unit 8 via the remote control unit 21, and video (camera) Image information) is displayed. The elevator control device 1 also has a door opening / closing number storage unit 17 that detects the number of doors opened and closed.

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

  First, in step 212, a door opening / closing number count signal is transmitted from the door opening / closing number storage unit 17 to the door control unit 15. If the door opening / closing number (number of reopening) is below a certain value, normal operation is continued (step 31). When the door opening / closing number is repeated a plurality of times and the number is more than a certain 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 whether the car is loaded or not ( In step S33), if there is a load, it is determined that the cause of the reopening is that a person is on board (a human factor), and normal operation is performed (steps S35 and S39). When it is determined that there is no car loading, the camera image information output from the landing camera 14 is transmitted to the door control unit 15 via the input / output unit 16, and the door control unit 15 determines whether there is a user near the door. Done. When it is determined that there is a user near the door (step S35 YES), it is determined that the cause of the reopening is that the person is near the door (which is a human factor) and normal operation is performed (steps S35 and S39). If there is no user in the vicinity of the door (NO in step S35), it is determined that the cause of the door reopening is a malfunction of the door device (step S36), and a car forced door closing signal is transmitted from the door control unit 15 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) for normal operation. The process returns to end the operation (step S39).

  As described above, according to the fifth embodiment, the cause of the door reopening is not caused by a person being caught from the door opening / closing frequency of the door, the load information of the load sensor 12 and the camera image information of the landing camera 14. When the determination is made, the door opening / closing speed setting value is changed and the door is closed, so that the influence on the elevator operation control due to the door failure can be reduced.

<Sixth Embodiment>
Since the overall configuration diagram and functional configuration diagram of the elevator door abnormality diagnosis system according to the sixth embodiment are the same as those in FIGS. 1 and 2, these will be described with the aid of them.

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

  As door parts constituting the elevator door, in addition to the door motor 9, there are a door hanger, a hanger rail, an electric pulley, an electric rope, and the like. These lifetimes (lifetime) are predetermined for each door part. The remaining life of these door parts varies depending on the number of doors opened / closed, the number of years used, and the state of use.

  Therefore, in the sixth embodiment, the life of each door part constituting the elevator door, the use time (aged time, the number of doors open / closed), and the calculated remaining life calculated from the use time are listed, and the maintenance center 2 It is stored in the elevator state confirmation unit 22 in an updatable manner. When the remaining life in the calculation is reduced, for example, the remaining life diagnosis is started when the door opening / closing number becomes equal to or greater than a preset number. Specifically, the door opening / closing setting value is sequentially changed stepwise from the remote control unit 21 of the maintenance center 2 and is sequentially transmitted to the door control unit 15 as a speed command change value to execute door opening / 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 reference value.

  Further, the door part changes depending on the use state. For example, the first floor (reference floor) where doors are frequently opened and closed is more exhausted than the doors on other floors. Moreover, the burden on the door is heavier on the windy floor. In consideration of these conditions, the life diagnosis cycle may be changed by the number machine. Also, the abnormality diagnosis cycle on the first floor may be made earlier than the diagnosis cycle on other floors. The occurrence of an abnormality can be prevented in advance by determining the remaining life for each elevator door and executing the abnormality diagnosis.

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

  First, in 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 door opening and closing operations are sequentially performed based on the speed command change value (step S43). The door controller 15 compares the door opening / closing speed setting value changed by the remote controller 21 with the door opening / closing time measured by the speed sensor 10 and the normal door opening / closing time 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 door door opening / closing speed setting value is sequentially changed in the remote control unit 21, by diagnosing the device state for each changed door opening / closing speed setting value, It is possible to determine the remaining life of the door device.

  In each of the embodiments described above, the changed door opening / closing speed setting value decreases the door opening / closing speed. However, the door opening / closing speed may be increased. In some cases, sills and foreign matter can be removed by increasing the door opening / closing speed. Further, the remaining life of the door part may be diagnosed by increasing the door opening / closing speed.

  As mentioned above, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 ... Elevator control apparatus (control panel), 2 ... Maintenance center, 3 ... Hoistway, 4 ... Riding car, 5 ... Balance weight, 6 ... Hoisting machine, 7 ... Deflection sheave, 8 ... Elevator door, 9 ... Door motor, DESCRIPTION OF SYMBOLS 10 ... Speed sensor, 11 ... Sill sensor, 12 ... Load sensor, 13 ... Camera in car, 14 ... Landing camera, 15 ... Door control part (door opening / closing speed control part, abnormality diagnosis part), 16 ... Input / output part, 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 is provided in the maintenance center and outputs the door opening / closing speed setting value of the elevator door changed to a value different from that during normal operation;
A door opening / closing speed control unit for inputting the changed door opening / closing speed setting value and controlling the door opening / closing speed of the elevator door;
A speed sensor for measuring a 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 and the speed measurement value of the speed sensor;
An elevator door abnormality diagnosis system comprising:
Input camera image information from a camera that can confirm the operation of the elevator door,
The abnormality diagnosis unit compares the door opening / closing camera image information based on a reference door opening / closing speed setting value and the door opening / closing camera image information based on the changed door opening / closing speed setting value to detect a door abnormality location. The elevator door abnormality diagnosis system according to claim 1. It has a sill sensor that detects the state of the elevator door acyl,
The abnormality diagnosis unit compares the detection information of the sill sensor when the door is normal and the detection information of the sill sensor based on the changed door door opening / closing speed setting value, and determines whether there is an abnormality of the door based on the comparison result. The elevator door abnormality diagnosis system according to claim 1 or 2. A load sensor for detecting the load in the car;
A door opening / closing number storage unit for detecting and storing the door opening / closing number for counting the door opening / closing number of the door;
The door opening / closing speed control unit determines whether or not a person's door is pinched from the counted number of door opening / closing, camera image information from the camera, and load information from a load sensor, and a person is pinched by the door. 3. The elevator door abnormality diagnosis system according to claim 2, wherein when there is no door, the door opening / closing speed setting value is changed to forcibly close the door. The remote control unit outputs the door opening / closing speed setting value that is sequentially changed,
The door opening and closing speed control unit inputs the door opening and closing speed setting value sequentially changed from the remote control unit and sequentially controls the door opening and closing speed of the elevator door,
5. The system according to claim 1, further comprising a function of comparing a measured door opening / closing time with a reference door opening / closing time for each sequentially set door opening / closing speed setting value to determine a remaining life of the door device. The 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 controller via the communication line from the remote maintenance center,
In the elevator control device, the changed door opening / closing speed setting value is input to control the door opening / closing speed of the elevator door,
Elevator door abnormality based on the difference between the door opening / closing time based on the reference door opening / closing speed setting value and the door opening / closing time calculated from the speed sensor speed measurement value when the door opening / closing execution is performed based on the changed door opening / closing speed setting value. An elevator door abnormality diagnosis method characterized by determining presence or absence.

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