JPH0485288A - Man conveyer remote supervisory device - Google Patents

Abstract

PURPOSE:To catch abnormality generation peculiar to a man conveyer by respectively measuring stop time data in a predetermined part, when the man conveyer is not in operation, and operation time data in a predetermined part, when the man conveyer is in operation, to compare both measured values, and storing the value, when it is judged abnormal, while judging whether abnormality is provided or not. CONSTITUTION:Normally a plurality of man conveyers M are provided in a single building, and a measuring/detecting part 10 and a man conveyer supervisory device 20 are attached to each man conveyer M to supervise a plurality of these man conveyer supervisory devices 20 by a single transmission terminal device 30. A stop time data in a predetermined part is measured, in the case of the man conveyer M not in operation, and an operation time data in the predetermined part is measured, in the case of the man conveyer in operation, to judge whether abnormality is provided or not by comparing a measured value of each data. Abnormality, when it is judged, is stored in a memory means. In this way, abnormality generation peculiar to the man conveyer M can be surely caught.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a remote monitoring device for a passenger conveyor for remotely monitoring a passenger conveyor and appropriately responding when an abnormality occurs on the passenger conveyor.

[Conventional technology]

In recent years, elevators, escalators, moving walkways, passenger conveyors, lifts, and other elevators have been installed in various buildings.
They are used for transportation by immigrants and visitors, and are indispensable to people. Therefore, if a malfunction occurs in this elevator, not only will immigrants and people coming in and out of the building suffer great inconvenience in their daily lives and work, but there is also the risk of personal injury. For this reason, a monitoring system is employed for elevators to constantly monitor the presence or absence of abnormalities.

There are various types of such monitoring systems, and as an example, the outline of the system described in Japanese Patent Application No. 63-275106 will be explained. This monitoring system includes an elevator control device, a monitoring terminal device, a monitoring center, and a business office that manages the elevator.The monitoring terminal device and the monitoring center, and the monitoring center and the business office are connected by telephone lines. Note that the monitoring center has jurisdiction over a large number of monitoring terminal devices.

In the above configuration, the elevator control device controls the operation of the elevator and determines whether an abnormality has occurred in the elevator. In determining whether or not an abnormality has occurred, the abnormality that has occurred is ranked and stored according to the importance of the abnormality, and various data at the time of ordering the abnormality are also stored. The monitoring terminal device constantly monitors the elevator control device, and when an abnormality occurs, it automatically dials the monitoring center, connects a telephone line with the monitoring center, and outputs the rank of the abnormality to the monitoring center. When the monitoring center receives the rank of the abnormality from the monitoring terminal device, if the rank of the abnormality is high in importance, the monitoring center extracts the details of the abnormality and the status of the elevator from the monitoring terminal device and stores them. On the other hand, when the staff at the monitoring center receives the rank of the abnormality from the monitoring terminal device, they immediately report this to the sales office that manages the elevator in which the abnormality has occurred, and have the maintenance personnel on patrol rush to the site. We will inform the sales office of the details, and have them provide necessary backup of personnel, repair equipment, etc. to the maintenance personnel who were dispatched earlier.

[Problem to be solved by the invention]

The remote monitoring device for elevators mentioned above is a device that can quickly and appropriately take action when an abnormality occurs, but this device is ideal for elevators and lifts, and when applied to passenger conveyors, it can be used to cannot cover abnormalities.

In other words, compared to elevators and lifts, passenger conveyors have many mechanical parts that are warmer, and it is impossible to determine whether there is an abnormality in some of these mechanical parts unless you know whether they are running or stopped. It is empty.

The purpose of the present invention is to solve the problems in the above-mentioned prior art,
To provide a remote monitoring device for a passenger conveyor that can reliably detect the occurrence of an abnormality peculiar to the passenger conveyor.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a passenger conveyor monitoring device that has a function of diagnosing an abnormality in a passenger conveyor provided in a building, and a vehicle conveyor monitoring device that detects an abnormality in the passenger conveyor. In a remote monitoring device for a passenger conveyor, which includes a warning terminal device that reports this abnormality and a monitoring center that manages a plurality of the warning terminal devices via a telephone line, the passenger conveyor monitoring device has the The first step is to determine whether the passenger conveyor is in operation or not.
determining means, first measurement command means for causing stop data to be measured at a predetermined location when the first determining means determines that the vehicle is not in operation; and the first determining means determines that the vehicle is in operation. a second measurement command means that causes the operational data of the predetermined location to be measured when the measurement is performed, and a measurement value measured at the same location according to the command of the first measurement command means and a command of the second measurement command means It is characterized by being provided with a second judgment means for comparing the measured value with the measured value to judge the presence or absence of an abnormality, and a storage means for storing the abnormality when it is judged by the second judgment means. do.

[Effect]

The passenger conveyor control device determines whether or not the passenger conveyor is in operation using a first determining means, and if it is not in operation, measures stoppage data at a predetermined location according to a command from a first measurement command means; During operation, data during operation is measured at the predetermined locations according to a command from the second measurement command means, and the presence or absence of an abnormality is determined by comparing the measured values of each measurement with the second determination means. If an abnormality is determined, this is stored in the storage means.

〔Example〕

Hereinafter, the present invention will be explained based on illustrated embodiments.

FIG. 1 is a block diagram of a remote monitoring device for a passenger conveyor according to an embodiment of the present invention. In the figure, M is a passenger conveyor (escalator), and 10 is a measurement/detection unit that collectively represents each device that measures and detects each predetermined location on the passenger conveyor M. 20 is a passenger conveyor monitoring device corresponding to a conventional elevator M door device, 30 is an alarm terminal device corresponding to a conventional monitoring terminal device, and 40 is a monitoring center. A indicates a business office that manages the passenger conveyor M, and T indicates a telephone line between the passenger conveyor monitoring device 30 and the monitoring center 40, and between the monitoring center 40 and the business office A. Note that normally one building is equipped with a plurality of passenger conveyors M, and a measurement/detection section 10 and a passenger conveyor monitoring device 20 are attached to each passenger conveyor M, and these plural passenger conveyor monitoring devices 20 are attached to each passenger conveyor M.
The configuration is such that one alarm terminal monitors the
The figure shows one man conveyor M and its attached measurement/conveyor M.
Only the detection unit 10 and the passenger conveyor monitoring device 20 are shown, and illustration of the others is omitted. Further, although the monitoring center 40 has jurisdiction over a large number of alarm terminal devices 30, only one alarm terminal device 30 is shown, and the others are omitted from illustration.

The passenger conveyor monitoring device 20 includes an MPU 20a that performs necessary calculations and controls, a ROM 20b that stores processing procedures of the MPU 20a, and a RAM 20 that stores required data.
1020d, which inputs and outputs data. The notification terminal device 30 includes an MPU 30 a that performs necessary calculations and controls;
ROM30b that stores the processing procedure of this MPU30a
, a microcomputer consisting of a RAM 30c for storing required data, and an l1030d for inputting and outputting data, an automatic dialing device 30e for automatically dialing the telephone number of the monitoring center 40, and a telephone port fIT.
It is composed of a transmitting/receiving circuit 30f that sends and receives information via the transmitter/receiver circuit 30f.

FIG. 2 is a diagram illustrating the contents of a part of the RAM 20c shown in FIG. 1. As shown in the figure, the RAM 20C includes, in part, an A-rank failure storage section 20c.

B rank failure storage unit 20cz, C rank failure storage unit 20
c2. It is equipped with D-rank failure storage units 20c, t-; and a status storage unit 20cs, and stores abnormalities of the passenger conveyor M in the failure storage unit of the corresponding rank according to predetermined rankings for the abnormalities. do. The state storage unit 20c is a storage unit that stores the state of the passenger conveyor M. The above ranking and status will be explained with reference to FIG.

FIG. 3 is an explanatory diagram illustrating an example of the rank of abnormality items (self-diagnosis contents) of the passenger conveyor and the state of the passenger conveyor. In FIG. 3, the abnormality items classified as A are serious abnormalities that may have a negative impact on passengers on the passenger conveyor. In addition, abnormal items classified as B rank are items that have no immediate impact on the passengers of the passenger conveyor, but will cause a serious abnormality if the operation continues, or - items that temporarily stop and restart. This is an abnormal item that should be activated. Further, abnormal items categorized as C rank are abnormal items that may cause problems in operation if the vehicle continues to be operated, and require maintenance. All abnormal items classified into these ranks are self-diagnosed by the diagnostic function of the passenger conveyor monitoring device 2o, and each abnormality is stored in the failure storage section of the corresponding rank. Specifically, each abnormality item is individually made to correspond to a predetermined address in the RAM 20C, and a rank is determined for each of these addresses. When an abnormality occurs in a certain abnormal item, the value of the address corresponding to this abnormal item changes from rOJ to rlJ, for example.

A supplementary explanation will be given regarding the above abnormality items. In a passenger conveyor, when a failure occurs, the safety device is activated according to the failure, but in the case of a serious failure, the safety device can only be reset manually, and unless the failure is that serious, the safety device is activated. The safety device is designed to return automatically. A
Rank “Manual return safety device operation” and B rank “
This corresponds to "automatic return safety device operation". "Smoke generation" is an abnormality in which cigarettes or the like are caught in a passenger conveyor and fall, and smoke is generated from the oil-soaked wire ring or the like. "Abnormal braking distance" means that the braking distance required to slow the vehicle down to a stop is abnormal in order to prevent passengers from falling over when the passenger conveyor stops. "Handrail running abnormality" refers to a state in which the running speed of the left and right handrails or the step and the running speed of each handrail are not synchronized. "Step chain elongation abnormality" is an abnormality in which the step chain that connects the steps is elongated to a predetermined value or more, and when this elongation becomes large, there is a risk that a passenger's foot may be caught between the steps.

"Driving chain elongation abnormality" is an abnormality in which the chain (driving chain) that connects the rotating part of the sprocket that the step chain engages with and the motor stretches beyond a predetermined value. The chain jumps and makes strange noises.

“Handrail drive chain elongation abnormality” is an abnormality in which the chain connecting the handrail drive body and the motor is elongated beyond a predetermined value, and when this elongation becomes large, an abnormality occurs in the running of the handrail.

Next, the state storage items shown in FIG. 3 will be explained. Condition memory items are items of data output from the measurement/detection unit 10 and data after diagnosis, and the data of these items is not data that changes, but data of a certain numerical value, and specifically, These items are individually RAM20C
These addresses constitute the state storage section shown in FIG. 2. The data of each of these items is compared with a reference value, etc., and if the result of the comparison is abnormal, it is registered in a predetermined location of each failure rank.

A supplementary explanation will be provided regarding the illustrated state storage items. "Start/stop count" is a value for determining the inspection interval, "Lighting time" is a value for determining lamp life, "Step chain elongation amount", "Driving chain elongation amount"
, "Handrail drive chain elongation J is a measured value of the elongation of each chain.

By the way, the diagnosis of each chain elongation abnormality of the C rank shown in Fig. 3 is determined based on the elongation amount of each chain in the status memory item, but this elongation amount is based on the elongation amount of each chain when the conveyor is in operation and when it is stopped. Measured in deflection. This will be explained with reference to FIG.

FIG. 4 is a system diagram of the step drive mechanism. In the figure, 51 is a step chain that moves a step (not shown), 52 is a sprocket that engages with the step chain 51, 53 is a motor that drives the sprocket 52, 54 is a sprocket connected to the motor 53, and 55 is a sprocket 54. , a sprocket integrated with the sprocket 52 (
(not shown) is a passing driving chain. 56 indicates the floor.

The amount of elongation of the driving chain 55 is measured as follows. Now, assume that a predetermined point on the floor 56 is Pl. During the UP operation of the passenger conveyor M, the tension on the upper side of the driving chain 55 becomes thicker, and as a result, the lower side slackens greatly as shown by the broken line.At this time, the driving chain 55 directly above the predetermined point P On the other hand, when the passenger conveyor M stops, the driving chain 55
The tension on the upper side is not as large as during operation, so the sag on the lower side is also not so large as shown by the solid line. The position of the driving chain 55 directly above the predetermined point P1 at this time is defined as P3. The amount of elongation of the driving chain 55 is expressed by the difference CP'+Pz) between the distance between positions P+ and Pz and the distance between positions PI and P3. That is, measured values are required both when the passenger conveyor M is in operation and when it is stopped. This is the same for other chains; for example, the amount of elongation of a step chain is
Regarding the spring for applying tension to the step chain, it is expressed by the difference in length of the spring when the passenger conveyor M is in operation and when it is stopped.

Next, the operation of this embodiment will be explained with reference to the flowcharts shown in FIGS. 5, 6, and 7. FIG. 5 is a flowchart showing the self-diagnosis operation of the passenger conveyor monitoring device 20. The passenger conveyor monitoring device 20 first monitors the measured values and detection signals of the measurement/detection section 10, and based on this, it is possible to determine an abnormality without comparing the operating data and the stopped data. It is determined whether or not an abnormality has occurred in the abnormal item (step S2° shown in FIG. 5). If it is determined that there is an abnormality, the abnormality is stored at a predetermined address in the RAM 20C. After the determination of each abnormality item is completed, the process moves on to determination of items that require comparison of operating data and stoppage data, as described above.

First, it is determined whether or not the passenger conveyor M is in operation, for example, based on whether or not a relay for an operation command is activated (step S2). If it is determined that the conveyor is in operation, the passenger conveyor monitoring device 20 outputs a command to the measurement/detection unit 10 (Step S2□), collects data of the points to be measured and detected during operation, and stores this data. The stop data is compared with the stop data (step 523). Next, it is determined whether the result of this verification is an abnormal value or not (step 524), and if it is an abnormal value, RA
Record this in the predetermined address of M20C (step 5t)
s) - For example, in the case of the amount of elongation of the driving chain mentioned above, position 1f P2 is measured and compared with the already measured position P3 at the time of stopping (calculation (P3 P2) is executed), and if this is greater than the specified value In this case, the elongation of the driving chain is determined to be abnormal and is recorded in the RAM 20c. This record is stored as, for example, "1"("0" in case of normality) at the address of the corresponding abnormal item, and since the address is ranked, the abnormality is also ranked. .

Next, the passenger conveyor monitoring device 20 determines whether or not the passenger conveyor M is performing security work using a switch that is closed during security work (step 526), and if it is not performing security work, the process is repeated again. Return to S2°. If security work is in progress, the process ends.

Procedure S! At I, the passenger conveyor M is not in operation (
If it is determined that the conveyor is stopped (stopped), the passenger conveyor monitoring device 20 outputs a command to the measurement/detection section 10 in step S! ?
), collect data from the locations to be measured and detected during stoppage, and record this data as stoppage data (step 528). Next, among these stop data, it is determined whether or not it is abnormal or not (step S2), and if it is abnormal, it is recorded (step 5zs), and if it is not abnormal, the process is carried out as described above. Procedure S
Move to Z&.

Next, the operation of the notification terminal device 30 will be explained. FIG. 6 is a flowchart illustrating the operation of the notification terminal device 30. The notification terminal device 30 is l1020d.

RAM 20 of the man conveyor monitoring device 20 via 30d
The storage status of each address in the failure storage units 20C1 to 20C4 of C is checked repeatedly, for example, in milliseconds (step 531) shown in FIG. 6. It is determined whether an abnormality is recorded (step S3□ ).

If the failure storage section 20c+ to 20C4 of RAM20C
The storage status of each address changes from "0" to "1",
When it is determined in step S3□ that an abnormality has occurred, the rank to which the abnormality belongs is confirmed (step S, 3), and the contents of all abnormal items of that rank and the contents of the abnormality items at that time are stored in the status storage unit 20C3. Immediately save the contents to RAM.
Store in 3Qc. In addition, when there are multiple passenger conveyors M, the contents of Jl are stored for each passenger conveyor with the number of that passenger conveyor assigned thereto. Next, the automatic dialing device 30e is instructed to dial the monitoring center 40,
A telephone line is connected to the monitoring center 40 via the telephone line 5 (step S, 4). Then, only the rank of the abnormality that has occurred is reported to the monitoring center 40 (step S1). If there are multiple abnormality ranks, only the one with the highest level of urgency will be reported.

Next, the operation of the monitoring center 40 will be explained. FIG. 7 is a flowchart illustrating the operation of the monitoring center 40.

The monitoring center 40 connects the telephone line in response to the telephone line connection request from the alarm terminal device 30 (step 541 shown in FIG. 7), receives the rank of the abnormality reported from the alarm terminal device 30, And this is stored in the storage device (Step 3.2). Then, the received rank is displayed on the display device in step S4. ), it is determined whether or not to confirm the content of the abnormality based on this rank (step 544). Whether this confirmation is necessary or not is determined in advance for each rank. For example, in the example of the abnormality ranks of the passenger conveyor M shown in FIG. 3, all of the A rank and C rank require confirmation.

If it is determined that confirmation is necessary in step S44, the monitoring center 40 immediately calls the alarm terminal device 3 via the telephone line 5.
0, the contents and status of the abnormality stored in the RAM 30c of the reporting terminal device 30 are instructed to be sent to the monitoring center 40, which is then received and stored (step 545).

Then, the contents and status of the received abnormality are displayed on the display device (step S4).

The staff member at the monitoring center 40 first notifies the sales office 6 that manages the passenger conveyor M where the abnormality has occurred of the occurrence of the abnormality and the rank of the abnormality via the telephone line 7, and then determines whether the abnormality is A. If the rank is C rank, based on the data read out by the process of step SaS above, see the display items displayed in step sah, and notify office A of the content of the abnormality and the status of the passenger conveyor M. .

At office A, based on the abnormality notification from the monitoring center 40, the maintenance personnel on patrol immediately
Inform the operator that an abnormality has occurred and the rank of the abnormality, and if the abnormality item and the condition of the man conveyor M at that time are known, also notify them and request the man conveyor M to perform maintenance. dispatch personnel. Through this communication, maintenance personnel can know in advance which part of the passenger conveyor M is causing the abnormality and what condition the passenger conveyor M is in, so that they can quickly respond when they arrive at the passenger conveyor M. Appropriate measures can be taken. In addition, when the maintenance engineer rushes to the passenger conveyor M with only the rank of the abnormality being reported to the maintenance engineer, the maintenance engineer can check the abnormality item and the condition of the passenger conveyor M by subsequently making an inquiry to the sales office 6. can be known and also quickly,
Appropriate measures can be taken.

On the other hand, at office 6, based on the details of the abnormality, if there is equipment necessary for repairing the abnormality of the passenger conveyor M that the maintenance personnel do not carry, they will dispatch a staff member to immediately repair the equipment. It can be transported to the man conveyor M, thereby ensuring reliable and prompt repair of the abnormality. Also, since the rank of the abnormality is notified first, it is possible to quickly take care of personnel to deal with the abnormality (normally, in the case of A rank, two maintenance personnel are often required).
. Furthermore, even when abnormalities occur in a plurality of conveyors at the same time, priority measures can be immediately taken for abnormalities in higher ranks by notifying the ranks.

If necessary, the monitoring center 40 reads out the individual contents of the diagnosis contents and status storage items of the passenger conveyor stored in the alarm terminal device 30 via the telephone line T.
This can be displayed on a display device.

〔Effect of the invention〕

As described above, in the present invention, it is possible to determine when the vehicle is running and when it is stopped, measure the necessary data for each, and compare both data to determine whether there is an abnormality. Occurrences can also be reliably captured.

[Brief explanation of drawings]

Fig. 1 is a block diagram of a remote monitoring device for a passenger conveyor according to an embodiment of the present invention, Fig. 2 is an explanatory diagram of the memory contents of the RAM of the alarm terminal device shown in Fig. 1, and the third part is an abnormality item of the passenger conveyor. FIG. 4 is a system diagram of the step drive mechanism, and FIGS. 5, 6, and 7 are flowcharts illustrating the operation of the apparatus shown in FIG. 1. lO...Measurement/[i part, 20...Man conveyor monitoring device, 20c...RAM, 30...
...Notification terminal device, 30c...RAM,
40...Monitoring center, M...Man conveyor, A...Sales office Figure 3 Figure 2 To 411 2 Figure 5

Claims (2)

[Claims] (1) A passenger conveyor monitoring device that has a function of diagnosing an abnormality in a passenger conveyor installed in a building, and an alarm terminal that notifies an abnormality when the passenger conveyor monitoring device detects an abnormality in the passenger conveyor. In a remote monitoring device for a passenger conveyor, which includes a device and a monitoring center that manages a plurality of alarm terminal devices via a telephone line, the passenger conveyor monitoring device is configured to detect whether or not the passenger conveyor is in operation. a first determination means for making a determination; a first measurement command means for causing stop data to be measured at a predetermined location when the first determination means determines that the vehicle is not in operation;
a second measurement command means that causes the operation data of the predetermined location to be measured when the determination means determines that the vehicle is in operation; and a measurement value measured at the same location according to the command of the first measurement command means a second determining means for determining the presence or absence of an abnormality by comparing the measured value with the measured value according to the command from the second measurement commanding means; and storing this when the second determining means determines that there is an abnormality. A remote monitoring device for a passenger conveyor, characterized in that it is provided with a storage means. (2) In claim (1), the measurement value obtained by the command of the first measurement command means used for the determination by the second determination means is the same as the measurement value obtained by the command of the second measurement command means. A remote control device for a passenger conveyor, characterized in that the data is at the time of stop immediately before the operation of the vehicle.