JP2002211853A - Control system for lifting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a control system for a lifting machine such as an elevator and an escalator that allows of a request and a change without a maintenance person sent to a field and can prevent careless damage even to a basic operation. SOLUTION: A storage part for storing programs is divided into at least two program parts, or a basic program part 111a for administering a basic operation of a lifting machine and a functional program part 111b for deducting a feature, a function and the like as the lifting machine such as an elevator and an escalator. A center has a functional program for the lifting machine maintained by a company concerned. The center and a controller 11 are connected via a communication line 2, so that access from the center changes and deletes a functional program in the controller 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control system for an elevator such as an elevator or an escalator.

[0002]

2. Description of the Related Art In recent years, as the use of elevators such as elevators or escalators has become widespread, there has been an increasing demand for changing the operation method of elevators such as elevators or escalators. For example, for security, only at night,
There are requests for direct driving to a floor registered in the car, driving on the standard floor for work only in the morning, and skipping driving without stopping even-numbered floors in order to improve driving efficiency. In addition, in order to improve maintenance efficiency, the management company may change the program by itself.

Conventionally, in order to respond to these requests and changes, a maintenance person has to go to a site and enter a machine room to rewrite a program of a control device. In addition, when the program is already included in the control device and can be changed by operating the operation panel in the car, a maintenance worker goes to operate the operation panel when requested, and changes the operation.

[0004]

In the above prior art, every time there is a request for a change, a maintenance person must go to the site and rewrite or operate the program each time, which requires a lot of time and labor. . In addition, maintenance personnel are technicians who are originally reserved for elevator maintenance, and performing maintenance work that is different from their original work is a major problem that hinders the maintenance work. Was occurring.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an elevator or an escalator for an elevator or an escalator capable of making requests and changes without requiring a maintenance staff to go to the site and preventing accidental damage to basic movements. To provide a control system.

[0006]

SUMMARY OF THE INVENTION The object of the present invention is to provide a control system for an elevator having a storage unit for storing a program, the control unit being controlled by the stored program to operate each device. In the above, the storage unit is divided into at least two program units of a basic program unit that controls the basic operation of the elevator and a function program unit that improves the performance, function, etc. of the elevator, and is managed by the center in-house. The center is connected to the control device via a communication line, and the function program in the control device is changed or deleted by access from the center.

With this configuration, when requested by a customer,
The corresponding program is selected from the function programs provided in the center, and the selected program is sent to the corresponding function program unit via the communication line. Thereby, the control program is changed, and the requested operation can be performed.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment of an elevator.

FIG. 1 is a block diagram showing an elevator control system according to the present invention.

The elevator 1 includes a driving device 12, a door opening / closing device 13, a call registration device 14, a safety device 15, and a car 1
6, counterweight 17, landing 18, and control device 1
1 and the like. When the passenger registers the call in the call registration device 14, the control device 11 drives the driving device 12 to drive the car 16 (the counterweight 1 connected by a rope).
7) is moved up and down to stop at the landing 18 and the door opening / closing device 1
3 is driven to open and close the door of the car 16 and passengers get on and off the car. When the safety device 15 operates, the control device 11 causes the drive device 12 to stop urgently. Elevator 1
Is connected to the center 3 via the communication means 2, a program is distributed from the center 3 to the control device 11 of the elevator 1, and the control device 11 controls each of the above devices according to the distributed program.

FIG. 2 is a block diagram showing the configuration of the control device 11 of the elevator 1.

Storage unit 11 containing various programs
1. a control unit 112 for executing the program and controlling the devices; a receiving unit 114 for receiving a program distributed from the center 3; a storage unit 113 for storing the received program in a storage unit 111; It comprises a transmission unit 115 for transmitting information to the center 3. The storage unit 111 is a basic program unit 1 that does not permit rewriting from the center 3.
11a and a function program unit 111b that allows rewriting. The basic program unit 111a is a program that controls basic movements of the elevator 1 that performs running / stopping of a car, opening / closing of a door, emergency stop by a safety switch, etc. in response to a call, and a function program 111b includes performance, function, efficiency, etc. It is an application-like program incorporated on the basic program 111c for improving the purpose and for each purpose. It goes without saying that a part describing the processing of the program (command part of the program) may be used as the basic program part 111a, and a part describing the data of the program (the specification table part of the program) may be used as the functional program part 111b.

FIG. 3 is a block diagram showing the configuration of the center 3.

A storage unit 32 storing various functional programs of the elevator and specifications of a delivery destination, etc.
A control unit 31 for selecting, editing, and processing a program from, a transmitting unit 33 for sending the program to the elevator 1, a receiving unit 34 for receiving a storage result of the program from the elevator 1,
It comprises a monitoring recording unit 35 for displaying and recording this storage result.

FIG. 4 is a flowchart showing the processing of the control unit 31 of the center 3.

Upon receiving a request from a customer, the control unit 31 selects a function program corresponding to the request from the storage unit 32 (step 1), and edits and processes the program according to the specifications of the customer elevator in the storage unit 32. (Step 2), data (distribution program) for distribution with storage conditions and the like added thereto is created (Step 3), and this is transmitted to the transmission unit 33.
(Step 4). Then, the transmission unit 33 transmits the distribution program to the elevator 1.

FIG. 5 is an explanatory diagram showing the data structure of the distribution program 4 transmitted from the center 3 to the elevator 1.

The main body of the function program to be stored (storage program 42) and information for storing it (storage information 4
1) and the like, and the storage information 41 includes a storage location 412 for specifying a location where the program is stored and a storage condition 411 for specifying when and when the program is stored.
and so on. The storage location 412 is generally a memory address, a file name, a table name, or the like. Storage condition 411
When a program (eg, call registration ON / OFF) or the like is stored without any problem (condition 1 in FIG. 6), the program (eg, acceleration / deceleration characteristics of acceleration / deceleration characteristics) is stored while the elevator is running. If there is no problem in storing the setting (condition 2 in FIG. 6), or if storing the program only when the elevator is on standby (condition 3 in FIG. 6), the program (condition 3 in FIG. 6) is used. For example, to store a new function program, etc.), it is necessary to separate the elevator from normal operation, but if the urgency is low and it is not necessary to execute it immediately (condition 4 in FIG. 6), To store programs (for example, those related to safety), it is necessary to operate the elevator separately from normal operation, and it is very urgent and must be implemented immediately (Fig. Condition 5), and the like of.

FIG. 6 is a flowchart showing the processing of the storage unit 113 of the control device 11 of the elevator 1.

The receiving section 114 of the control device 11 of the elevator 1 receives the distribution program 4 from the center 3, and when the receiving section 114 receives it, the processing of FIG. 6 is executed.
First, the storage condition 411 in the distribution program 4 is determined (step 1). When the condition 1 is designated, the program is stored immediately (step 2). If the condition 2 is specified, it is determined whether or not the elevator 1 has stopped (step 3) and stopped (YES in step 3).
The program is stored for the first time (step 4). If the condition 3 is designated, the call is lost and it is determined whether or not the elevator 1 waits (step 5), and the program is stored for the first time after waiting (YES in step 5) (step 6). If the condition 4 is specified, the call is lost and it is determined whether or not the elevator 1 is on standby (step 7). By waiting (YES in step 7), maintenance operation (or suspension or program storage) is performed. The elevator 1 is switched to a dedicated state (step 8). After the elevator 1 is switched to the maintenance operation, the program is stored (step 9). If necessary, the elevator 1 is subjected to a test operation to confirm that there is no abnormality (YES in step 10). Return to normal operation (step 11). As soon as condition 5 is specified, new call registration is prohibited (step 1).
With the call 2), the call is lost and it is determined whether the elevator 1 is on standby (step 13). The standby state (YES in step 13) allows the elevator 1 to perform a maintenance operation (or a pause or a dedicated state for storing a program). )
(Step 14). After the elevator 1 is switched to the maintenance operation, the program is stored (step 15). If necessary, the elevator 1 is subjected to a test operation to confirm that there is no abnormality (YE in step 16).
S), the elevator 1 is returned to normal operation again (step 17). After the program is stored, if there is an abnormality in the test operation (NO in steps 10 and 16) or an abnormality occurs in the normal operation (NO in step 18), the fact is communicated to the transmission unit 15 and communicated. The data is transmitted to the center 3 through the means 2 (step 19) and the control unit 112
To stop the elevator 1 according to the situation (step 20).

FIG. 7 is a flowchart showing a detailed process of storing the program in steps 2, 6, 9, and 15 of FIG.

First, the storage location 4 in the distribution program 4
12 is determined (step 1), and if the function program unit 111b is allowed to be rewritten (YES in step 1).
Only the storage program 4 is stored in the storage location 412 of the storage unit 111.
2 is stored (Step 2), and when the data is stored normally without any hardware trouble (YES in Step 3), the fact is transmitted to the transmitting unit 115 and transmitted to the center 3 through the communication means 2 (Step 4). If it is not stored correctly (NO in step 3) or the basic program unit 111a is not allowed to be rewritten (NO in step 1), the fact is transmitted to the transmitting unit 115 and transmitted to the center 3 through the communication unit 2 (step 3). 5).

FIG. 8 is a flowchart showing another process of the storage unit 113, which monitors the storage status of the program.

The receiving program 114 of the control device 11 of the elevator 1 receives the distribution program 4 from the center 3, and when the receiving program 114 receives it, the processing of FIG. 8 is executed.
First, the elapsed time after receiving the distribution program 4 is counted (step 1), and it is determined whether or not the elapsed time exceeds a predetermined time (step 2). Normally, the storage of the program (the processing in step 4 in FIG. 6) ends normally (YES in step 3) before the elapsed time does not exceed the predetermined time (NO in step 2), and thus this processing ends immediately. . However, if for some reason the storage of the program (the processing in step 4 in FIG. 6) is not completed and the elapsed time exceeds a predetermined time (YES in step 2) due to some reason such as continuous congestion of the elevator, it is so notified. The information is transmitted to the transmission unit 115 and transmitted to the center 3 through the communication means 2 (step 4).

FIG. 9 is a flow chart of the control unit 31 for monitoring the storage status of the program distributed to the elevator 1 at the center 3.

When the transmitting section 33 of the center 3 transmits the distribution program 4 to the elevator 1, the processing of FIG. 9 is executed. First, the elapsed time since the transmission of the distribution program 4 is counted (step 1), and it is determined whether or not the elapsed time exceeds a predetermined time (step 2). Normally, the elevator 1 sends a message to the effect that the storage of the program has been completed (YES in step 3) before the elapsed time does not exceed the predetermined time (NO in step 2). (Step 7).
However, the elevator 1 sends a message indicating that the storage of the program is abnormal (YES in step 4), or the elapsed time exceeds a predetermined time (Y in step 2).
At the time of ES), this is reported and recorded in the monitoring and recording unit 35 of the center 3 (step 5), and a program backup procedure to the elevator 1 and an emergency dispatch command to a technician are performed according to the situation (step 6).

In the transmission and reception between the center 3 and the elevator 1 accompanying the distribution of programs, mutual authentication using user IDs and passwords, and data encryption and compression may be performed as required. Further, when the operation of the elevator 1 is switched due to the storage of a program or the like, a notification to that effect may be given to the inside of the car or the landing. Further, the communication means 2 between the center 3 and the elevator 1 includes a general telephone line, a dedicated line, the Internet,
It goes without saying that the present invention can be implemented irrespective of the means such as wireless.

Although the above embodiment has been described with respect to an elevator, it goes without saying that the escalator function program, such as setting the traveling speed of the escalator step, changing the traveling direction, and automatically stopping when not in use, can be similarly implemented. .

[0029]

As described above, according to the present invention, it is possible for a maintenance person to make a request or change without going to the site, and even to perform a basic movement of an elevator or an escalator by mistake. Prevents breaking.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an elevator control system according to the present invention.

FIG. 2 is a block diagram showing a configuration of an elevator control device.

FIG. 3 is a block diagram showing a configuration of a center.

FIG. 4 is a flowchart showing processing of a control unit of the center.

FIG. 5 is an explanatory diagram showing a data configuration of a distribution program distributed from a center to an elevator.

FIG. 6 is a flowchart showing processing of a storage unit of the elevator control device.

FIG. 7 is a flowchart showing a detailed process of FIG. 6;

FIG. 8 is a flowchart showing another process of the storage unit of the elevator control device.

FIG. 9 is a flowchart illustrating another process of the control unit of the center.

[Explanation of symbols]

 Reference Signs List 1 elevator 11 control device 111 storage device 111a basic program unit 111b function program unit 112 control unit 113 storage unit 114 reception unit 115 transmission unit 12 driving device 13 door opening / closing device 14 call registration device 15 safety device 16 riding cage 17 counterweight 18 landing 2 communication means 3 center 31 control unit 32 storage unit 33 transmission unit 34 reception unit 35 monitoring storage unit 4 distribution program 41 storage information 411 storage condition 412 storage location 42 storage program

Claims (2)

[Claims] 1. An elevator control system comprising a storage unit for storing a program, wherein the control unit is controlled by the stored program to operate each device. Divided into at least two program sections, a basic program section that governs basic movements, and a function program section that improves performance, functions, etc. as an elevator, and has a function program for elevators managed by the company at the center, A control system for an elevator, wherein the center is connected to the control device via a communication line, and a function program in the control device is changed or deleted by access from the center. 2. A control system for an elevator according to claim 1, wherein a storage condition is determined and stored at the time of access from said center.