JPS62269867A - Controller for elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention λ Detailed Description of the Invention [Field of Industrial Application] This invention relates to an elevator control device.

[Conventional technology]

As a control device for conventional engineering 9 beta, for example, JP-A-58
- As disclosed in Publication No. 144072, a memory (for example, ROM) dedicated to W extraction is provided,
This read-only memory contains building-specific information relevant to the operation of the elevator, such as the number of floors in service.

It is rare to find one that stores information specifying the waiting floor of the elevator during off-peak hours as control data.

FIG. 5 is a block diagram of a control device for this type of elevator. In the figure, (1) is the central processing unit.

(2) is a signal line group including an address bus, data bus, and control bus; (3) is a read-only memory (ROM) that stores a program for elevator control;
+41 is an electrically erasable memo IJ (KKFRO) that stores data containing information specific to that building.
M), +51 is writable memory (RAM), +
61 is elevator equipment, and (7) is a converter. The converter (7) is connected to the central processing unit via the signal line group (2).
1fl) to RAM (5) and connected to elevator equipment (6), ground pressure level conversion, analog-to-digital conversion of signals exchanged with these,
It has conversion functions such as serial-parallel conversion.

FIG. 6 is a block diagram of a conventional data rewriting device that is formed by the elevator control device shown in FIG. 1 and controls rewriting of data in EKF ROM +41. συ has a keyboard and display device (not shown), and a rewriting input means for inputting new data, etc.
α3 is the rewriting input means (I by the data from 111)
A data rewriting means (13 is used to rewrite the EFROM+41).

FIG. 7 is a flowchart explaining the operation of the data rewriting device. The operation will be explained with reference to FIG. When the rewrite process is started, the determination as to whether there is a rewrite command in process 011 is YES, and the address (data) A and data D2 of the rewrite command are determined in process 2.
Extract. next.

As a result of the processing, all data D2 is written to address A of the rewriting command and the rewriting processing is completed. This is often experienced with equipment, but R
When it becomes necessary to change building-specific information, i.e., insect control data, related to elevator operation stored in the OM.

ROM'z had to be converted, which required time and effort. Therefore, as a means to solve this problem, 1g! A non-volatile memo that can be used for storage, writable, and retains its contents even if the power is cut off! J (yv11!pRoM) 1t of 6 elevators
However, the EEFROM that was included in the ill m device had a limit on the number of times it could be rewritten, so rewriting it many times would shorten its lifespan, which was another problem. Furthermore, in conventional elevator control devices, data rewriting processing is usually performed on block data, but this block also contains data that does not need to be rewritten, and the changes made after data rewriting processing are In the confirmation work, all data, including data that has not been changed, is checked, which not only requires one step, but also causes many errors in the checking itself.

This invention was made in order to solve the above-mentioned problems, and it provides an elevator control that can reduce the number of times the memory contents are changed, and can easily check the changes, thereby increasing the reliability of the device. The whole purpose is to obtain the equipment.

[Means for solving problems]

The elevator control device according to the present invention is configured to store control information specific to a building as rewritable data in a memory, and to control the elevator using the data read out from the memory. In addition, when rewriting data at a specific address in the memory, the data determination means executes rewriting of the new data only when the data stored at the address and the new data to be written are different from each other. This is what I did.

[Effect]

The data determining means in this invention rewrites data at a specific address in the memory, and rewrites the new data only when the data stored at the address and the new data to be written are different from each other. It suppresses unnecessary rewrites to reduce the number of memory rewrites (and also prevents write errors).

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a block diagram showing a data rewriting device according to the present invention, and is a block diagram of the elevator shown in FIG. Dll tjl
1 device.

In FIG. 1, the rewriting input means C11 is composed of, for example, elevator equipment (61) and has data rewriting.The data determining means a'a is composed of a central processing unit (1), and the data determining means C11 is composed of a central processing unit (1), and is configured to rewrite data supplied from the rewriting input means qυ. It has the function of making judgments regarding

FIG. 2 is a flowchart for explaining the operation of FIG. 1. Here, the operation will be explained with reference to FIG. If the rewrite command is determined to be YES by processing Q, execute the process at to extract the address A of the rewrite command and new data D2, and if the result is NO,
Exit without doing anything. The contents of address A (=DO)' are extracted by the process 0υ following process (2). And processing (
) to check if DO=D2, and if it is no.

Through processing, the contents of address A are changed to data D2.

If the answer is yes, do nothing and exit.

In other words, if the rewrite command is repeated.

Process (to) is YES, and this rewrite process is ended without executing the rewrite process of process (c).

FIG. 3 is a block diagram of a data rewriting device according to another embodiment of the present invention, which is formed by the elevator control device shown in FIG. In FIG. 3, the α ship is an error content display means for displaying an error in the execution result of the data determination means αa.

FIG. 4 is a flowchart showing the operation of the data rewriting device shown in FIG. Referring to FIG. 4, when the determination of the rewrite command is YES in step 1211, the process is executed, and when the determination is NO, the rewrite process is completely completed without doing anything. Processing @ extracts the address (data) A of the rewrite command, the current data D1 and new data D2, and processing C3
11 reads out the contents of address A (=DO)'e.

Furthermore, check whether DO=DI by processing C32. If the result of this process G3 is NO, the error details are displayed by process Ωυ. This display displays address A, data Do, DI, and D2 with appropriate comments.

When the result of the process C32 is YES, it is checked whether Do=D2 is accepted by the process (to).

When the result of the process (to) is NO, the content of the address A is rewritten to data D2 by the processing area, and when it is YES, this rewriting process ends.

In the above embodiment, all comments are added to the error display using the process (4Il), but the date may be added to this.Also, it may be changed to another comment (similar to the above embodiment). be effective.

Further, in the above embodiment, a case has been described in which the data rewriting device is formed by the elevator control device shown in FIG. Effect fj! : Qin.

〔Effect of the invention〕

As described above, according to the present invention, when all control data is rewritten, it is configured to prohibit all repetitive rewriting processes by comparing with the already stored 14ilJ control data. ! l' can be reduced and its lifespan can be extended.

It also has the effect of preventing writing errors due to address input errors and the like.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a data rewriting device according to an embodiment of the present invention, FIG. 2 is a flowchart for explaining the operation of the data rewriting device shown in FIG. 1, and FIG. 3 is a block diagram showing another embodiment of the present invention. A block diagram showing a data rewriting device according to an example, FIG. 4 is a flowchart for explaining the operation of the data rewriting device shown in FIG. 3, and FIG. 5 is a block diagram showing an elevator control device forming the data rewriting device. FIG. 6 is a block diagram showing a conventional data rewriting device, and FIG. 7 is a flowchart for explaining the entire operation of the data rewriting device shown in FIG. In the figure, α2 is a data determining means, and α country is a data rewriting means. In Figure 1, the same reference numerals indicate the same or equivalent parts.

Claims (2)

[Claims] (1) In an elevator control device that stores building-specific control information in a memory as rewritable data and controls the elevator using the data read from the memory, data at a specific address in the memory is provided. When rewriting the address, the data determining means enables rewriting of the new data only when the data stored at the address and the new data to be written are different from each other, and the rewriting is made possible by the data determining means. An elevator control device comprising: data rewriting means for sometimes rewriting the data in the memory. (2) Control of the elevator according to claim 1, wherein the data determining means processes the data as an error when the data read from the address to be rewritten is not equal to the data before the change. Device.