JP2614667B2 - Man conveyor remote monitoring device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote monitoring device for a man conveyor for remotely monitoring a man conveyor and appropriately coping with an abnormality occurring in the conveyor.

[Prior art] In recent years, elevators, escalators, moving walkways and other man conveyors, lifts and other elevators have been installed in various buildings and provided to flights of migrants and visitors, and are indispensable for people. I'm sorry. Therefore, if a failure occurs in the elevator, immigrants and people entering and exiting the structure not only cause a great deal of trouble to their lives and work, but also may cause personal injury. For this reason, a monitoring system that constantly monitors the elevator for the presence or absence of the abnormality is employed.

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

In the above-described 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 abnormalities that have occurred are ranked and stored according to the degree of importance of the abnormalities, and various data at the time of occurrence of the abnormalities are also stored. The monitoring terminal device constantly monitors the elevator control device, and when an abnormality occurs, automatically dials the monitoring center, connects the telephone line with the monitoring center, and outputs the rank of the abnormality to the monitoring center. When the monitoring center receives the abnormality rank from the monitoring terminal device, if the abnormality rank is of high importance, the monitoring center extracts the content of the abnormality and the state of the elevator from the monitoring terminal device and stores them. On the other hand, as soon as the monitoring center staff receives the rank of the abnormality from the monitoring terminal device, it reports it to the sales office that manages the elevator that caused the abnormality, rushes the maintenance staff on the patrol to the site, and then inputs the abnormality Inform the sales office of the details of the operation, and have the maintenance personnel who had rushed to perform the necessary back-up such as personnel and repair equipment.

[Problems to be solved by the invention]

The above-mentioned elevator remote monitoring device is a device that can perform prompt and appropriate processing when an abnormality occurs, but it is the most suitable device for elevators and lifts. Can not cover the abnormalities. That is, a man conveyor has much more mechanical parts than an elevator or a lift, and some of these mechanical parts cannot judge whether there is an abnormality without knowing the operating state and the stopped state. Because.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems in the prior art and to provide a remote monitoring device for a conveyor that can reliably capture the occurrence of an abnormality specific to the conveyor.

[Means for solving the problem]

In order to achieve the above object, the present invention provides a man-conveyor monitoring device having a function of diagnosing an abnormality of a man-conveyor provided in a building, and when the man-conveyor abnormality is detected by the man-conveyor monitoring device. In a remote monitoring device of a conveyer comprising an alarming terminal device for notifying this abnormality and a monitoring center for managing a plurality of the alarming terminal devices via a telephone line, the manconveyor monitoring device includes: First determination means for determining whether or not the man conveyor is operating; first measurement command means for measuring stop data at a predetermined location when the first determination means determines that the conveyor is not operating; A second measurement instructing means for measuring operating data at the predetermined location when the first determining means determines that the vehicle is in operation; and the first measurement finger for the same location. Means for comparing the measurement value measured by the command of the means with the measurement value measured by the command of the second measurement command means to determine the presence or absence of abnormality; and the second judgment means Storage means for storing when an abnormality is determined is provided.

[Action]

The man conveyor control device determines whether or not the man conveyor is operating by the first determining means.
The stop time data at a predetermined location is measured by a command from the first measurement command means, and during operation, the operation data at the predetermined location is measured by a command from the second measurement command means. Are compared by the second determination means to determine whether there is an abnormality. If an abnormality is determined, this is stored in the storage means.

〔Example〕

 Hereinafter, the present invention will be described with reference to the illustrated embodiments.

FIG. 1 is a block diagram of a man-conveyor remote monitoring device according to an embodiment of the present invention. In the figure, M is a man conveyor (escalator), and 10 is a measurement / detection unit which collectively shows each device for measuring and detecting each predetermined portion of the man conveyor M. Reference numeral 20 denotes a man-conveyor monitoring device corresponding to a conventional elevator control device, reference numeral 30 denotes a notification terminal device corresponding to a conventional monitoring terminal device, and reference numeral 40 denotes a monitoring center. A indicates a business office that manages the conveyor M, and T indicates a telephone line between the conveyor monitoring device 30 and the monitoring center 40 and between the monitoring center 40 and the business office A. Normally, a single building is provided with a plurality of man conveyors M, and a measurement / detection unit 10 and a man conveyor monitoring device 20 are attached to each man conveyor M, and the plurality of man conveyor monitoring devices 20 are connected to one. Although the configuration is such that one alerting terminal device monitors, only one conveyor M, the measuring / detecting unit 10 and the conveyor monitoring device 20 attached thereto are shown in the figure, and the others are not shown. Have been. The monitoring center 40 has jurisdiction over a number of alerting terminal devices 30, but only one alerting terminal device 30 is shown, and the other alerting terminal devices 30 are not shown. The man-conveyor monitoring device 20 includes a micro computer including an MPU 20a for performing required operations and control, a ROM 20b for storing a processing procedure of the MPU 20a, a RAM 20c for storing required data, and an I / O 20d for inputting and outputting data. Have been. The alerting terminal device 30 includes a microcomputer including an MPU 30a for performing required computation and control, a ROM 30b for storing a processing procedure of the MPU 30a, a RAM 30c for storing required data, and an I / O 30d for inputting and outputting data. It comprises an automatic dialing device 30e for automatically dialing the telephone number of the center 40, and a transmitting / receiving circuit 30f for exchanging information via the telephone line T.

FIG. 2 is a view for explaining the contents of a part of the RAM 20c shown in FIG. As shown in RAM 20c, a portion, A rank fault storage unit 20c _1, B rank fault storage unit 20c _2, C rank fault storage unit 20c _3, D rank fault storage unit 20c _4, and state storage unit
20c _{5 and the} like, and stores the abnormality of the conveyor M in the failure storage unit of the corresponding rank according to a predetermined ranking for the abnormality. The state storage unit 20c ₅
This is a storage unit that stores the state of the man conveyor M. The ranking and status will be described with reference to FIG.

FIG. 3 is an explanatory diagram for explaining an example of ranks of abnormal items (contents of self-diagnosis) of the conveyor and states of the conveyor. In FIG. 3, abnormal items classified into rank A are serious abnormalities that may have a detrimental effect on passengers of the conveyor. Abnormal items that are classified into rank B do not have the immediate and conspicuous effect on passengers on the conveyor belt, but items that cause serious abnormalities if driving is continued as they are, or temporarily stop and restart This is an abnormal item to be done. Further, the abnormal items classified into the rank C may be troublesome if the operation is continued as they are, and are the abnormal items that require maintenance. All of these abnormal items classified into each rank are self-diagnosed by the diagnostic function of the man-conveyor monitoring device 20, and are stored in the failure storage unit of the corresponding rank for each abnormality. Specifically, each abnormal item is individually associated with an address determined in the RAM 20c, and a rank is determined for each of these addresses. Then, when an abnormality occurs in a certain abnormal item, the value of the address corresponding to this abnormal item changes from, for example, “0” to “1”.

The above-mentioned abnormal items will be supplementarily described. In the case of a man conveyor, when a failure occurs, the safety device operates according to the failure, but in the case of a serious failure, the safety device can not be restored unless it is manual, and if it is not so serious, The safety device automatically returns.
"A manual operation safety device operation" of rank A and "automatic return safety device operation" of rank B correspond to this. "fuming"
Is an abnormality in which cigarettes or the like are caught in a man conveyor and fall, and smoke is generated from oil-soaked cotton dust and the like. "Brake braking distance abnormality" means that the braking distance required to stop slowly is abnormal in order to prevent the passenger from losing shogi when the conveyor stops. The “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. The "step chain extension abnormality" is an abnormality in which the step chain connecting the steps extends beyond a predetermined value. If the extension is increased, the passenger may be pinched between the steps. "Driving chain extension abnormality" is an abnormality in which the chain (driving chain) connecting the rotating part of the sprocket with which the step chain is engaged and the motor extends beyond a predetermined value. In this case, a chain jump occurs, producing an unusual sound. The “handrail drive chain extension abnormality” is an abnormality in which the chain connecting the handrail drive body and the motor extends to a predetermined value or more. If the extension increases, the handrail runs abnormally.

Next, the state storage items shown in FIG. 3 will be described.
The state storage item is an item of data output from the measurement / detection unit 10 and data after diagnosis.The data of these items is not data that changes, but data of a certain numerical value. These items individually correspond to the determined addresses of the RAM 20c, and these addresses are
The state storage unit shown in the figure is configured. The data of each of these items is compared with a reference value or the like, and if the result of the comparison indicates an abnormality, the data is registered at a predetermined location of each failure rank.

The supplementary description of the illustrated state storage items will be given.
"Start / stop count" is a value for determining the inspection interval.
"Illumination lighting time" is a value for judging the lamp life. "Step chain elongation", "driving chain elongation", and "handrail drive chain elongation" are measured values of the elongation of each chain.

Incidentally, the diagnosis of the chain elongation abnormality of the rank C shown in FIG. 3 is determined based on the chain elongation amount of the state storage item. Measured in flexure. This will be described with reference to FIG. FIG. 4 is a system diagram of the step driving mechanism. In the drawing, reference numeral 51 denotes a step chain for moving a step (not shown), 52 denotes a sprocket for engaging with the step chain 51, 53 denotes a motor for driving the sprocket 52, 54 denotes a sprocket connected to the motor 53, and 55 denotes a sprocket 54. , A driving chain bridged between the sprocket 52 and an integral sprocket (not shown). 56 indicates a floor.

The elongation of the driving chain 55 is measured as follows. Now, the predetermined point of the floor 56 and P _1. During the UP operation of the conveyor M, the tension on the upper side of the driving chain 55 is increased, and accordingly, the lower side is greatly slackened as shown by a broken line. The position of the driving chain 55 immediately above the predetermined point P ₁ at this time is P _2. On the other hand, man conveyor M
When the driving is stopped, the tension on the upper side of the driving chain 55 is not so large as in the operation, and therefore, the sag on the lower side is not so large as shown by the solid line. The position of the driving chain 55 immediately above the predetermined point P ₁ at this time is represented by P ₃
And The amount of extension of the driving chain 55 depends on the position P ₁ ,
It is represented by the difference (P ₃ −P ₂ ) between the distance between P ₂ and the distance between positions P ₁ and P ₃ . In other words, both measured values when the conveyor M is operating and when it is stopped are required. This is the same for other chains. For example, the amount of extension of the step chain is expressed by the difference between the length of the spring for applying tension to the step chain and the length of the spring when the man conveyor M is operated and stopped. It is.

Next, the operation of this embodiment will be described with reference to the flowcharts shown in FIGS. 5, 6, and 7. FIG. FIG. 5 is a flowchart showing the self-diagnosis operation of the man-conveyor monitoring device 20. The man conveyor monitoring device 20 first monitors the measurement values and detection signals of the measurement / detection unit 10, and based on this, can perform abnormality determination without comparing the operation data and the stop data. exceptional items abnormality and determines whether or not generated for (Step S ₂₀ shown in FIG. 5). If it is determined to be abnormal, the RAM 20
The abnormality is stored in a predetermined address of c. When the determination on each of the abnormal items is completed, the process proceeds to the determination on the items that require comparison between the operation data and the stop data, as described above.

First, the passenger conveyor M whether during operation, for example, a relay driving instruction is determined by whether or not operating (Step S _21). If it is determined that the head is in operation, the passenger conveyor monitoring device 20 outputs a command to the measurement and detection unit 10 (Step S _22), measuring, data locations to be detected and taken during the operation, already stores the is stopped when the data to be collated is (Step S _23). Then, as a result of the verification is abnormal values is determined whether or not the (Step S _24), if the abnormal value is recorded into a predetermined address of the RAM 20c (Step S _25). For example, if the aforementioned driving chain elongation amount is measured the position P _2, (computed [P ₃ -P _2] is performed) already collated with the position P ₃ at the time of stopping being measured, which is less than a prescribed value in the case of,
Assuming that the driving chain growth is abnormal, RAM2
0c will be recorded. This record is stored as, for example, “1” (“0” in the case of normal) in the address of the corresponding abnormal item, and the abnormality is also ranked because the address is ranked. .

Then, the passenger conveyor monitoring device 20 determines the switch such that the passenger conveyor M is closed during security operations whether it is in security operations (Step S _26), if not in security work, handle again return to Step S _20. During security work,
The process ends.

In Step S _21, the passenger conveyor M if it is found not to be in operation (stopped), the passenger conveyor monitoring device 20 outputs a command to the measurement and detection unit 10 (Step S _27),
Collect the data of the points to be measured and detected at the time of stoppage, and record this data as stoppage data.
S _28). Then, among these stop data, which performs the determination about what should be determined whether abnormal or not (Step S _29), which was recorded if abnormal (Step S
_25), if not abnormal process proceeds to step S ₂₆ described above.

Next, the operation of the alarm terminal device 30 will be described. FIG. 6 is a flowchart for explaining the operation of the alarm terminal device 30.
Alarm terminal 30 is I / O20d, the state of the storage of the address through 30d passenger conveyor of the monitoring device 20 of RAM20c fault storage unit 20c ₁ ~20c _4, for example repeatedly confirmed in milliseconds (the Step S ₃₁₎ shown in Figure 6, the abnormality is judged whether it is recorded (Step S _32). If the failure storage unit 20c of the RAM 20c ₁
Storage state of each address of ～20C ₄ is changed from "0" to "1", when the abnormality in step S ₃₂ is judged to have occurred, together with the abnormality is confirmed rank belonging (Step S _33),
Storing contents of all abnormal items in the rank, and the contents thereof when stored in the state storage unit 20c ₅ immediately RAM 30c. When there are a plurality of man conveyors M, the content of the abnormality is stored with the number of the man conveyor for each man conveyor. Next, the automatic dialing device
Instruct 30e to dial the monitoring center 40, and telephone line 5
Connect the telephone line to the monitoring center 40 via the
₃₄ ). Then, the monitoring center 40, only to alarm rank of abnormality that has occurred (Step S _35). If there are multiple abnormal ranks, only the rank with the highest urgency is issued.

Next, the operation of the monitoring center 40 will be described. FIG. 7 is a flowchart for explaining the operation of the monitoring center 40. The monitoring center 40 performs the telephone line connection in response to the telephone line connection request from the alerting terminal device 30 (the procedure shown in FIG. 7).
S _41), to receive the rank of alarm anomaly from alarm terminal device 30, and stores it in the storage device (Step
_S42 ). Then, the received rank is displayed on the display device (step _S43 ), and it is determined whether or not the content of the abnormality is confirmed based on the rank (step _S44 ). The key to this confirmation,
No is determined in advance for each rank. For example, in the example of the abnormal rank of the conveyor M shown in FIG.
All ranks to C rank require confirmation. If it is determined in step _S44 that confirmation is necessary, the monitoring center 40 immediately sends the content of the abnormality stored in the RAM 30c of the alarm terminal 30 to the alarm terminal 30 via the telephone line 5. The status is queried, these are instructed to be transmitted to the monitoring center 40, and they are received and stored (step _S45 ). Then, the content and state of the received abnormality are displayed on the display device (step _S46 ).

The person in charge of the monitoring center 40 first reports the occurrence of the abnormality and the rank of the abnormality via the telephone line 7 to the sales office 6 that manages the man conveyor M in which the abnormality has occurred. rank ~C If the rank is based on the data read by the processing of the steps S _45, a look at the display items are displayed by the procedure S _46, the abnormality of the contents and the passenger conveyor state offices also of M a To inform. Based on the notification of the abnormality from the monitoring center 40, the sales office A immediately informs the maintenance staff on patrol that the abnormality has occurred on the man conveyor M and the rank of the abnormality. When the abnormal item and the state of the man conveyor M at that time are known, these contents are also communicated, and the maintenance person is made to rush to the man conveyor M. Since the maintenance staff can know in advance which part of the cause of the abnormality of the man conveyor M and the state of the man conveyor M by this communication, the maintenance person M
When you arrive, you can take appropriate action promptly. Further, when the maintenance staff rushes to the man conveyor M in the state where only the abnormality rank is first notified to the maintenance staff, the maintenance staff then makes an inquiry to the sales office 6 so that the maintenance staff can check the abnormal items and the state of the man conveyor M. You can know, and you can take prompt and appropriate action.

On the other hand, at the sales office 6, if there is any equipment necessary for repairing the abnormality of the conveyor M which is not carried by the maintenance person based on the content of the abnormality, a person in charge is dispatched to immediately send it. It can be transported to the man conveyor M, which can guarantee a reliable and quick repair of the abnormality. In addition, since the rank of the abnormality is reported first, it is possible to promptly take care of personnel corresponding to the rank (usually, in the case of rank A, two maintenance personnel are often required). Furthermore, even when an abnormality occurs in a plurality of man conveyors at the same time, the rank is notified, so that a priority action can be immediately taken for an abnormality of a higher rank.

When necessary at the monitoring center 40, the individual contents of the diagnosis and status storage items of the man-conveyor stored in the alerting terminal device 30 are read out via the telephone line T, and are read out to the display device. Can be displayed.

〔The invention's effect〕

As described above, in the present invention, the operation time and the stop time are determined, necessary data is measured, and both data are compared to determine whether there is an abnormality. Can also be reliably captured.

[Brief description of the drawings]

FIG. 1 is a block diagram of a remote monitoring device for a conveyor according to an embodiment of the present invention, and FIG. 2 is a block diagram of an alarm terminal device shown in FIG.
FIG. 3 is an explanatory diagram of RAM storage contents, FIG. 3 is an explanatory diagram of an example of a rank of an abnormal item of the man conveyor and a state of the man conveyor, FIG.
FIG. 5 is a system diagram of the step driving mechanism, and FIGS. 5, 6, and 7 are flow charts for explaining the operation of the apparatus shown in FIG. 10 ... Measurement / detection unit, 20 ... Man conveyor monitoring device, 20
c: RAM, 30: Notification terminal device, 30c: RAM, 40: Monitoring center, M: Man conveyor, A: Sales office

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hajime Sasaki 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo Inside Hitachi Elevator Service Co., Ltd. (56) References JP-A-1-281287 (JP, A) JP-A-3 −256995 (JP, A)

Claims (2)

(57) [Claims] 1. A man-conveyor monitoring device having a function of diagnosing an abnormality of a man-conveyor provided in a building, and an alarm for notifying the abnormality when the man-conveyor abnormality is detected by the man-conveyor monitoring device. And a monitoring center that manages a plurality of the alerting terminal devices via a telephone line. In the remote monitoring device of the man conveyor, the man conveyor monitoring device determines whether or not the man conveyor is operating. A first determination means for determining whether the vehicle is not operating, a first measurement command means for measuring stop data at a predetermined location when the first determination means determines that the vehicle is not operating, and the first determination means. A second measurement command means for measuring the operation data at the predetermined location when it is determined that the vehicle is in operation; and measuring the same location by a command from the first measurement command means. A second determining means for comparing the measured value with the measured value measured by the command of the second measuring command means to determine the presence or absence of an abnormality; and when the second determining means determines that there is an abnormality. Storage means for storing the information, and a remote monitoring device for a man conveyor. 2. The method according to claim 1, wherein the measurement value obtained by the command of said first measurement command means used for the judgment of said second judgment means is based on the command of said second measurement command means. Characterized by the data at the time of stop just before the operation at the time of measurement