JP6370187B2 - Elevator inspection equipment - Google Patents

Description

  The present invention relates to an elevator inspection device.

  Elevator doors that have been opened and closed smoothly at the time of installation will increase door running resistance when the door is opened and closed due to aging and sudden events. The former includes, for example, the lifting of the sill, the narrowing of the distance between the door bottom and the sill due to the inclination of the door suspension, and the latter includes the deformation of the door shoe due to the collision of the object. If the door running resistance exceeds a predetermined overload reversal torque, the door does not open during the door opening operation, and the door does not close during the door closing operation.

  Before this happened, the inspector moved the elevator one floor at a time during regular inspections and inspected door opening and closing each time. However, there was a problem that the elevator could not provide service to the user during the inspection across all floors.

  In order to solve this problem, the technique described in Patent Document 1 detects the torque of the door motor when the door is opened and closed, and when this torque shows an abnormal value, especially when inspection and maintenance are required, It is described that it reports. At that time, it is described that the abnormality detection date and time, the abnormality detection code, the floor name, and the measured value are displayed.

JP-A-2005-126176

  The above Patent Document 1 displays the floor name indicating an abnormal opening / closing of the door. However, even if an inspector goes to the floor at the site and inspects the door, the problem that the abnormality of the door is not found. was there.

  An object of the present invention is to provide an elevator inspection device that can reliably find an abnormal part on site when a door opening / closing abnormality is notified.

The present invention relates to an elevator that generates information for identifying a door that has detected an abnormality as an inspection instruction for the door and transmits it to a control terminal when there is an abnormality in the opening / closing operation of at least one of a car door and a landing door When the elevator car is landed and the door is opened, the actual load torque of the door motor is obtained from the output of the rotary encoder attached to the rotary shaft of the door motor. A torque detection unit obtained from a motor current command calculated according to a difference between a speed and a preset reference speed, and an abnormality for determining whether or not the detected actual load torque is abnormal when the car is landing A check instruction generation unit that generates a check instruction for the door determined to be abnormal when it is determined that there is an abnormality more than a predetermined number of times Wherein the checking instruction generating unit, when it is determined there is an abnormality, then each incremented by 1 and the floor-specific counter floor of the car and car counter is landed, when it is not determined abnormality and A counter processing unit for performing a counter process for clearing the values of the car counter and the floor-specific counter of the floor, and checking the car door when the value of the car counter exceeds a predetermined value An instruction is generated, and when the value of the floor counter of the floor exceeds the predetermined value, an inspection instruction for the landing door of the floor is generated .

  ADVANTAGE OF THE INVENTION According to this invention, when the abnormality of door opening / closing is alert | reported, the inspection apparatus of the elevator which can find an abnormal part reliably on-site can be provided.

It is the schematic of the inspection apparatus of the elevator which concerns on one Embodiment of this invention. It is the figure which looked at the car door provided in the elevator car from the landing side. It is the figure which looked at the platform door provided in the platform of the elevator from the car side. It is a flowchart in the door control apparatus of the door inspection which concerns on one Embodiment of this invention. It is a flowchart in the elevator control apparatus of the door inspection which concerns on one Embodiment of this invention. It is a figure which shows the data storage table used for the door inspection which concerns on one Embodiment of this invention. It is a flowchart in the remote monitoring apparatus of the door inspection which concerns on one Embodiment of this invention. It is a figure which shows the relationship between the door position and torque of the door inspection which concern on one Embodiment of this invention. It is an example of the door abnormality display displayed on the control terminal of the control center which concerns on one Embodiment of this invention.

    Embodiments of an elevator inspection apparatus according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a schematic view of an elevator inspection apparatus according to an embodiment of the present invention. An elevator car 1 suspended from a rope 6 includes a door control device 3 that controls opening and closing of a car door 2 and a landing door 20 (not shown in the figure) that opens and closes by engaging with the car door. A door motor 4 driven by the control device 3 and a rotary encoder 5 for detecting the door position from the rotational position of the door motor 4 are mounted. Data exchange between the door control device 3 and the elevator control device 8 is performed via the tail cord 7. The elevator control device 8 controls not only this elevator but also other units when there are a plurality of elevators.

  The elevator control device 8 is connected to a remote monitoring device 9. The remote control device 9 receives various information from the elevator control device 8 and monitors the presence or absence of an abnormality in the elevator. Since the present embodiment relates to the door opening / closing abnormality monitoring of the elevator, the remote monitoring device 9 includes a door abnormality monitoring unit 91 and a storage device 92 as parts related thereto.

  The remote monitoring device 9 is connected to the control terminal 10 of the control center via a network, and the monitoring information is displayed on the display device 101 of the control terminal 10.

  Next, details of the car door 2 and the landing door 20 will be described with reference to FIGS. 2 and 3.

  FIG. 2 is a view of the car door as seen from the landing side, and also shows a portion that is hidden behind a wall and cannot be seen. The car 1 is provided with an entrance for passengers to get on and off, and a car door 2 is provided to open and close the entrance 11. In this car door 2, the car hanger 2 is suspended by a door hanger 12 attached to the upper part of the car door 2 movably riding on a door rail 13 provided in the car 1. On the other hand, the roof of the car 1 is provided with a door motor 4, and the rotation of the door motor 4 is transmitted to a pulley 14 via a belt. Along with the rotation of the pulley 14, a drive rope wound endlessly between the pulleys. 15 moves. The drive rope 16 and the door hanger 12 are connected by a connecting metal fitting 16, and the car door 2 opens and closes as the door motor 4 rotates.

  An engagement device 17 that engages with the landing door 2 is provided on the upper portion of the car door 2. When the car 1 is landed, it engages with the landing door so that the landing door opens and closes in conjunction with the car door 2.

  The car 1 facing the bottom of the car door 2 is provided with a sill 18, and the lower ends of a plurality of door shoes 19 provided at the lower end of the car 1 enter the sill 18.

  Next, the landing door will be described with reference to FIG. FIG. 3 is a view of the landing door as seen from the car side, and also shows the parts that are not visible to the user, as described above.

  In the hall (elevator hall) provided in the building, a landing side entrance 21 is provided at a position coincident with the entrance 11 of the car when the elevator reaches the floor. A door hanger 22 is provided above the landing door 20 that opens and closes the doorway 21, and the door hanger 22 is suspended from a door rail 23 provided in the building. A landing sill 25 is provided on the floor facing the bottom of the landing door 20, and the lower ends of a plurality of door shoes 26 attached to the lower end of the landing door 20 enter the landing sill 25.

  Further, a closer spring 24 is attached between the upper portion of the door hanger 22 and the building, and constantly biases the landing door 20 in the closing direction. For this reason, the door motor 4 requires a larger torque when the door is open than when the door is closed.

  Such an elevator door opening / closing operation will be described. When the elevator reaches the door control device 3, a door opening command is generated. When the door opening time reaches a predetermined time, or a door closing command is issued at the request of the user. In response to these commands, a speed command pattern in which the horizontal axis is time (or position) and the vertical axis is speed is generated inside the door control device 3. The speed command pattern has a trapezoidal shape having an acceleration portion where the speed gradually increases, a constant speed portion where the speed is constant, and a deceleration portion where the speed gradually decreases (trapezoid control).

  On the other hand, the rotation speed and position of the door motor 4 can be obtained by analyzing the output of the rotary encoder 5 attached to the rotation shaft of the door motor 4. Since the rotational speed of the door motor 4 is the door opening speed or the closing speed, the door control device 3 controls the door motor 4 so as to obtain a speed command pattern. Specifically, the opening / closing operation of the door is matched with the speed command pattern by controlling the motor current with an inverter so that the deviation becomes 0 based on the speed feedback of the door motor 4.

  When the door opening / closing operation configured as described above deteriorates as compared with the time of installation, the running resistance of the door increases. There are various causes of this deterioration, but as a cause that gradually occurs, as described above, when the sill floats up and comes into contact with the shoe or the lower end of the door, or when the door suspension is tilted, the space between the sill and the door becomes narrower. And the running resistance increases. Moreover, when trash accumulates on a sill, it corresponds to a secular change. Suddenly, foreign objects can be caught in the sill. It is also assumed that an excessive force is applied to the door and somewhere deforms and the positional relationship with the sill shifts.

  As described above, when the running resistance increases, the door opening / closing speed does not match the speed command pattern, so the door control device increases the current command to increase the torque of the door motor 4. This will be described with reference to FIG.

  The horizontal axis is the door position obtained from the output of the rotary encoder 5. The vertical axis represents the torque of the door motor 4. The solid line in the figure is the ideal torque value obtained for each elevator by calculation. The one-dot chain line is an overload reversal value. This overload reversal value is a value obtained by adding a predetermined torque, for example, 200 N · m, to the ideal value. When the torque during door operation reaches this value, the operation is reversed. It is a value to be made. When the torque reaches this overload reversal value due to a cause such as an object being caught during the door closing operation, the door opening operation is performed. Accordingly, when the torque becomes this value due to a secular change without causing any object to be caught, normal door opening / closing operation cannot be performed.

  Here, “tolerance” is defined. The margin is an index indicating how much the detected value (two-dot chain line), which is the actual load torque, has a margin before the overload inversion value, and is calculated by margin = overload inversion value / detection value. If the door opens and closes heavyly due to clogging of foreign objects, for example, the detected value approaches the overload reversal value and the tolerance decreases, and even if the user touches the door slightly when the door passes through the overload reversal value Therefore, the door opening / closing operation frequently reverses. For this reason, a predetermined tolerance, which will be described later, is set as a torque abnormality threshold, and when the detected value becomes this value, an abnormality is judged when there is a margin in the tolerance, and maintenance is performed before the complete opening / closing operation cannot be performed. I did it.

  The detection value that is the actual load torque described above can be obtained from the motor current command as described above. In addition, you may attach a torque sensor to the axis | shaft of the door motor 4, and may utilize the output.

  The dotted line is a torque abnormality threshold value, which is a preset value such as a margin of 1.2, for example. If the detected value exceeds this value at any door position while the door is open, as described later, door running abnormality is detected. Determined. In FIG. 8, the detected value exceeds the torque abnormality threshold at the deceleration portion immediately before the door is fully opened.

  Next, the door abnormality monitoring apparatus according to the present embodiment will be described with reference to FIGS. FIG. 4 is a flowchart processed by the microcomputer of the door control device. FIG. 5 is a flowchart processed by the microcomputer of the elevator control device 8. FIG. 6 is a data storage table stored in the storage device 92 of the remote monitoring device 9. FIG. 7 is a flowchart of the door abnormality monitoring unit 92 processed by the microcomputer of the remote monitoring device 9.

  In the present embodiment, the detection of the door torque abnormality is performed during the door opening operation when the elevator is serving the user. This is because when the door is closed, the load at the time of closing is reduced due to the presence of the door closer spring 24 (tolerance increases), and secondly, the door is forcibly opened at the time of closing the door. This is because there is a high possibility that there is a customer who wants to do so, or a baggage is caught, and it is difficult to determine an abnormality of only the door purely.

  In FIG. 4, when the detection operation is started in step S31, step S32 is repeated until there is a door opening command. When there is a door opening command, the door torque measurement is started (S33), and the measurement is continued until the door opening is completed (S34). When the measurement is completed, the door position where the margin is minimized and the margin are transmitted to the microcomputer of the elevator control device 8 in step S35, and the current measurement on that floor is terminated (S36). And when it stops on the next floor, measurement is performed similarly, and when it stops on the same floor as a matter of course, torque is also measured. The door control device 3 does not make a judgment on the measurement result, but simply calculates the tolerance and transmits the minimum position and the door position that has reached the minimum value.

  Next, the process in the elevator control apparatus 8 is demonstrated using FIG. Since the elevator control device 8 controls the elevator, the floor on which the transmission source elevator is located can be found. Therefore, the floor information and the minimum margin at the time of opening the door sent from the door control device 3 and the position thereof are determined. Transmit to the remote monitoring device 9. Even in the elevator control device 4, the measurement result is not judged.

  The determination on the measurement result is performed by the remote monitoring device 9. This remote monitoring device 9 determines door opening / closing abnormalities of all the units installed in the building. This determination method will be described with reference to FIGS. The description will be given for one elevator to avoid complications. Even if there are a plurality of units, the number of tables shown in FIG.

  If it starts in step S900, it waits for the above-mentioned data to be sent from the microcomputer of the elevator control device 3 (S901), and if it is sent, the minimum tolerance in the opening operation that has been sent exceeds the torque abnormality threshold. It is determined whether or not (S902). If not exceeded, there is no abnormality, so the process proceeds to step S903, where the floor-by-floor counter and the car counter on the measurement floor are cleared, and the process ends (S904).

  Here, the floor-specific counter and the car counter will be described with reference to FIG. One elevator can service from the 1st floor to the nth floor. When there is a door opening abnormality on a certain floor and the minimum door torque tolerance exceeds the torque abnormality threshold, the time, tolerance, and door position are written. At this time, 1 is put in the floor counter column and 1 is also written in the car counter. Next, the elevator stops on the other floor, and if the tolerance does not exceed the threshold value without abnormality, if the counter for each floor is not 0, the count value is cleared together with the time, the tolerance, and the door position. Also, the count value of the car counter is cleared with this operation. This is because if the torque abnormality is resolved, the previous abnormality on the floor is considered to be temporary, for example, the previous time there was a foreign object on the sill but this time it was gone, etc. is there.

  Whether the door opening abnormality is a phenomenon occurring on the car door 2 side or a phenomenon occurring on the landing door 20 side cannot be determined only by the actual load torque detected by the door motor-4. So, if there is a problem on the side of the Mikado door 2 and an abnormality has occurred, it should be an abnormality in any floor, so if the tolerance exceeds the threshold in any floor, the floor Increases the counter and raises the car counter. However, if no abnormality occurs on another floor, the car counter is cleared because there is no problem on the car door 2 side.

  Then, when the count value of a certain floor or the count value of the car counter reaches a predetermined value, for example, 5 times, the remote monitoring device 9 issues abnormality information to the control terminal 10 of the control center and notifies the monitoring staff. Notify the abnormality and send maintenance personnel to the site for recovery work.

  The five count values may be different for each building, or may be different for each elevator and each elevator model even in the same building.

  Returning to FIG. 7 again, if the door torque margin sent in step S902 exceeds the threshold value, the floor counter and the car counter on the measurement floor are counted up (S905). In step S906, the floor counter of the floor sent this time is compared with the size of the car counter. If the car counter is large, the process proceeds to step S907. This is because if there is a problem on the car door 2 side, the car counter will not be cleared and will be counted up every time the door opens, so in many cases the car counter will have a larger value. It is. If the car counter is not 5 times or more (S907), the process returns to the start (S909). If the car counter is 5 times or more (S907), the car door 2 is abnormal (S908). Information is issued (S910).

  On the other hand, if it is determined in step S906 that the car counter is not large, the process proceeds to step S911, the floor counter of the measurement floor is compared with the size of the car counter, and if the floor counter is large, the process proceeds to step S912. To do. If there is an abnormality in the landing door 20 on any floor, the car counter stops at that floor and counts up with the floor-specific counter each time the door is opened, but stops at another normal floor and opens the door. Cleared when opening. On the other hand, the count value of the abnormal floor counter is incremented every time the elevator stops on that floor and the door is opened. Is a larger value.

  If the count value of the floor-specific counter is less than 5 times in step S912, the process returns to the start (S914), and if it is 5 times or more, a specific floor door abnormality is detected (S913), and the control center control terminal 10 is issued in step S910. I will inform you.

  In rare cases, the count value of the floor counter and the car counter may be 5 at the same time, and the system is assembled assuming that the counter value of the floor counter and the car counter are equal. Otherwise, in order to avoid a system error when an event appears, the same case is described as a program.

  If the count values of both counters are equal and less than 5 in step S915, the process returns to the start (S917). If it is 5 or more, it is unknown which one is abnormal, so in step S916, the specific floor door abnormality and the car door abnormality are detected. Report to the control terminal 10.

  Next, an example for each case will be described. Before moving on to explanation, explanations of symbols and arrows will be given. If 1F (car 0, 1F0) → 3F (car 1, 3F1), the number in front of the parenthesis and F are the measurement floor, and the former in parenthesis is the count value of the car counter (the car stops After the door is opened, the measurement information is sent to the remote monitoring device 9 and the determination is completed, and the count is increased or decreased), the latter is the count value of the floor counter. The arrow indicates that the car has moved to another floor. In the above example, since no abnormality was detected on the first floor, the count value on the first floor was 0 for both, and the car moved to the third floor and there was an abnormality in either or both of the doors on this floor, This shows a state where the count value of the floor counter of the third floor is increased to 1, respectively. Note that the building shown in the example has five floors above ground and no basement.

<If the specific floor landing door (3rd floor) is abnormal>
1F (Cage 0, 1F0) → 3F (Cage 1, 3F1) → 5F (Cage 0, 5F0) → 4F (Cage 0, 4F0) → 3F (Cage 1, 3F2) → 1F (Cage 0, 1F0) → 2F ( Car 0, 2F0) → 3F (car 1, 3F3) → 4F (car 0, 4F0) → 3F (car 1, 3F3) → 1F (car 0, 1F0) → 3F (car 1, 3F4) → 5F (car 0) 5F0) → 3F (Cage 1, 3F5). Here, since the count value of the floor-by-floor counter on the third floor has reached 5, an alarm is sent to the control terminal.

<When the car door is abnormal>
1F (Cage 1, 1F1) → 3F (Cage 2, 3F1) → 5F (Cage 3, 5F1) → 4F (Cage 4, 4F1) → 1F (Cage 5, 1F2). Here, since the count value of the car counter has reached 5, an alarm is sent to the control terminal.

<When the multi-floor landing doors (1st floor, 3rd floor) are abnormal>
1F (Cage 1, 1F1) → 3F (Cage 2, 3F1) → 5F (Cage 0, 5F0) → 4F (Cage 0, 4F0) → 1F (Cage 1, 1F2) → 3F (Cage 2, 3F2) → 4F ( Car 0, 4F1) → 3F (car 1, 3F3) → 1F (car 2, 1F3) → 5F (car 0, 5F0) → 3F (car 1, 3F4) → 1F (car 2, 1F4) → 2F (car 0) 2F0) → 3F (Cage 1, 3F5). Here, the control terminal 10 is notified that the landing door 20 on the third floor is abnormal. Since the service of the elevator is continued, the count value of the floor-specific counter of the first floor becomes 5 when it stops next, so that it is also reported here. In addition, since the elevator service will continue until the maintenance staff arrives at the site, the floor-specific counters on both floors will continue to increase, of course, the flow will be issued every time it is 5 or more. The number of notifications for the same floor can be eliminated by limiting it to one time.

  As described above, the abnormality on the landing door 20 side and the abnormality on the car door 2 side can be distinguished. In Patent Document 1, “floor” is cited as information to be reported to the control center. However, this has the following problems. For example, if an abnormality is displayed on the floor of a certain unit in a certain building to be monitored, even if maintenance personnel check it toward the floor, no defect is found, and the abnormality is displayed again. We are concerned about the problem.

  Specifically, when there is no abnormality in the landing door 20 and there is a problem on the car door 2 side, the torque value measured on a certain floor shows an abnormal value, and a maintenance person hits the floor (the maintenance person Although I do not know which door is abnormal), the car 1 is serviced on a different floor, but no abnormality is found. After that, the maintenance staff is informed by the control center that an error indicating an abnormality has occurred on another floor (may be from the terminal that the maintenance staff has), but the maintenance floor is inspected. But the car is not on the spot, so no defects are found. While repeating this process several times, if there is a possibility that there is a problem with the car door 2 and investigating the car 2 to find a problem, there is no problem, but the remote monitoring device 9 breaks down. It may be judged that there is no door abnormality.

  In order to solve this problem, in this embodiment, whether the abnormality of the car door 2 is detected as one of the information when the door abnormality is detected and the remote monitoring device 9 reports to the control terminal 10 of the control center, Whether an abnormality of the landing door 20 on the specific floor is detected or whether an abnormality is detected in both of them is added.

  This will be described with reference to FIG. FIG. 9 is a display example displayed on the display device 101 of the control terminal 10 of the control center when a door opening / closing abnormality occurs. In addition, you may display on the terminal which a maintenance worker carries.

  Since the type column indicates a door opening / closing abnormality, this is displayed. The building name and the elevator number are displays for identifying the location where the problem has occurred. In this example, the building name “○ × building” and the elevator number “3” are displayed. The next three items are displays showing the state of the problem. As described with reference to FIG. 8, the door torque tolerance minimum value is an index indicating how close the overload reversal value is, and the degree of urgency can be understood. In this example, “1.1” is a highly urgent value. As described with reference to FIG. 8, the door position is the door position where the minimum tolerance is detected from the output of the rotary encoder 5, and is an index for facilitating maintenance personnel to identify the defective part in the field work. It is. The type of the specific floor / car door indicates whether the door showing the abnormality determined by the determination routine shown in FIG. 7 is a specific floor door or a car door. In this example, Since the car door is displayed, the maintenance staff can inspect the car door 2 without hesitation. Finally, the time is displayed. This time is the time when the remote monitoring device 9 has transmitted data to the control terminal 10.

  In the routine shown in FIG. 7, it may not always be possible to determine whether an abnormality has occurred on the car door 2 side or the landing door 20 side.

  For example, if there is a problem with the second floor and the fifth floor landing door 20 side in the 5th floor building as in the previous conditions, 1F (car 0, 1F0) → 2F (car 1, 2F1) → 4F (Cage 0, 4F0) → 5F (Cage 1, 5F1) → 2F (Cage 2, 2F2) → 1F (Cage 0, 1F0) → 2F (Cage 1, 2F3) → 5F (Cage 2, 5F2) → 2F ( Car 3, 2F4) → 5F (car 4, 5F3) → 2F (car 5, 2F5). At the same time, the number of times of abnormality detection reaches a predetermined value of 5.

  In addition to this, if there is an abnormality in the car door 2, if the opening and closing operation is repeated five times on the same floor, the abnormality is detected every time the door is opened, so the number of detections is reached at the same time. End up.

  In these cases, it is impossible to distinguish which door is abnormal. In the present embodiment, as shown in FIG. Specifically, in step S915, since the condition of “counter by floor = car counter = 5” is met, YES is selected and processed as a specific floor door abnormality and a car door abnormality in step S916. Then, a specific floor door and car door abnormality is reported to the control terminal 10.

  Also, if there is a problem with the landing doors 20 on the 1st floor and 3rd floor in the 5th floor building and only the 3rd floor tenant is open and the tenants on the other floor are non-business days, Indicates a movement like a shuttle between the first floor and the third floor. In this case, 1F (cage 1, 1F1) → 3F (cage 2, 3F1) → 1F (cage 3, 1F2) → 3F (cage 4, 3F2) → 1F (cage 5, 1F3) Will be issued. However, this notification reports the abnormality of the car door 2 even though the actual abnormality is defective on the landing door 20 side of the specific floor.

  In the present embodiment, a failure occurring in the landing door 20 on a specific floor of one floor can be detected with high accuracy. However, if a failure occurs in the landing door 20 on a plurality of floors at the same time, both abnormalities occur simultaneously. Alternatively, it is determined that the car door 2 is abnormal, and the latter cannot be distinguished from a pure car door 2 abnormality.

  For this reason, as described in step S910 of FIG. 7, when only the abnormality of the car door 2 is notified, or when the abnormality of the landing door 20 of the specific floor and the abnormality of the car door 2 is notified, which door has an abnormality. Since there is a case where it is not known, a maintenance instruction is given to the maintenance staff to check both the car door 2 and the landing door 20 on the floor where the abnormality is detected.

  Further, when the abnormality of the specific floor landing door 20 is notified, since the accuracy is high, an instruction is given to check only the landing side door 20 of the floor where the abnormality is detected.

  As described above, according to the present embodiment, the presence or absence of a door abnormality is checked during elevator service, and the control terminal is notified when an abnormality occurs. Can be omitted.

  In addition, when a door abnormality is detected and reported to the control terminal, whether it is a car door abnormality or a landing door abnormality is notified and displayed on the display device, so that maintenance staff get lost at the site It is possible to go to the place where there is a possibility of abnormality without any problems. For this reason, it is possible to greatly reduce the time for identifying the abnormal part, and to reduce the total maintenance time including repair.

  In particular, if there is an abnormality at one landing door, the abnormal floor can be specified with high accuracy, so that the maintenance staff can go directly to the target location.

  In addition, this invention is not limited to above-described embodiment, Various modifications are included. For example, the above-described embodiment has been described in detail for easy understanding of the present invention, and is not necessarily limited to one having all the configurations described. Further, a part of the configuration of an embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of an embodiment. In addition, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Car, 2 ... Car door, 3 ... Door control device, 4 ... Door motor, 5 ... Rotary encoder, 8 ... Elevator control device, 9, Remote monitoring device, 10 ... Control terminal, 20 ... Landing door, 101 ... Display apparatus

Claims (3)

In an elevator inspection device that generates information for identifying a door in which an abnormality has been detected as an inspection instruction for the door when there is an abnormality in the opening / closing operation of at least one of the car door and the landing door, and transmits the information to the control terminal ,
When the elevator car lands and opens the door, the actual load torque of the door motor is preset with the door speed obtained from the output of the rotary encoder attached to the rotation shaft of the door motor. A torque detector obtained from a motor current command calculated according to the difference from the reference speed,
An abnormality determination unit for determining whether or not the detected actual load torque is abnormal when the car is landing;
An inspection instruction generation unit that generates an inspection instruction for the door determined to be abnormal when it is determined that there is an abnormality more than a predetermined number of times,
When it is determined that there is an abnormality, the inspection instruction generation unit increments the car counter and the floor-specific counter on the floor on which the car is landing, respectively, and when it is not determined that there is an abnormality, the car A counter processing unit that performs counter processing to clear the value of the counter and the floor-specific counter of the floor concerned, and generates an inspection instruction for the car door when the value of the car counter exceeds a predetermined value An elevator inspection device that generates an inspection instruction for the landing door of the floor when the value of the floor counter of the floor exceeds the predetermined value. The elevator inspection device according to claim 1 ,
The abnormality determination unit is an elevator inspection device that determines an abnormality when the actual load torque exceeds different torque abnormality thresholds when the door is accelerating, constant speed, and decelerating. In the elevator inspection device according to claim 1 or 2 ,
An elevator inspection device that displays the generated inspection instruction on a display device of the control terminal.