JPH06123047A - Loom control system - Google Patents

Abstract

PURPOSE:To readily change a control program of a loom control computer. CONSTITUTION:Loom control computers Cj, Cj+1 and Cj+2 consist of a central processing unit CPU, a data memory RAM and program memories ROM1 and ROM2. Communication interfaces I/Fj, I/Fj+1 and I/Fj+2 are connected to the loom control computers Cj, Cj+1, Cj+2. The data memory RAM stores control data. The program memory ROM1 stores an initial program and the program memory ROM2 stores the control program. The communication interfaces I/FH is connected to the control computer CH. The communication interfaces I/FH, I/Fj, I/Fj+1 and I/Fj+2 are connected by a communication circuit L.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loom management system.

[0002]

2. Description of the Related Art JP-A-61-223143, JP-A-61-239054, or JP-A-61-23
As disclosed in Japanese Patent No. 9055, there is a system disclosed in a centralized management of a large number of loom by a host computer. The loom control computer that controls the loom operation reads out control data such as the loom rotation speed, warp tension, weft insertion timing, and weaving density from the memory, and controls the loom operation based on this control data. The control data is transferred from the host computer to the loom control computer, and the loom control computer stores the transferred control data in the memory. In this way, the host computer centrally manages a large number of looms.

[0003]

Control of the loom operation by the loom control computer requires not only control data but also a control program. In the conventional loom management system, the control program is stored in the read-only memory of each loom control computer. Therefore, it is necessary to replace the read-only memory in order to improve the function of the control program, add an optional device of the loom, and modify the control program such as correcting a defect in the control program. But,
Preparation of a new read-only memory and replacement work for a large number of looms require a great deal of labor.

An object of the present invention is to provide a loom management system which can easily change a control program.

[0005]

Therefore, according to the present invention,
A loom control computer for controlling the loom based on the stored control program and control data, control program holding means for storing the control program transferred to the loom control computer, and the control program from the control program holding means to the loom control computer. The loom management system was constructed from the transfer means for transferring.

[0006]

The control program stored in the control program holding means is transferred to the loom control computer by the transfer means. The loom control computer stores the transferred control program and controls the loom operation based on the stored control program.

The memory for storing the control program transferred from the control program holding means is a readable / writable memory. In addition to this readable / writable memory, if a read-only memory that stores an initial program for starting up the computer and communication means when the power of the loom is turned on is used together, the transfer of the initial program becomes unnecessary.

If a transfer program for transferring the control program stored in the control program holding means to the readable / writable memory when the power is turned on is stored in the read-only memory, the control program stored in the loom control computer. Is stored and updated every time the power is turned on.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment embodying the present invention will now be described with reference to FIGS.
It will be described with reference to FIG. In FIG. 1, j, j + 1, and j + 2 are looms, and _Cj , _{Cj + 1} , and _{Cj + 2} are loom control computers. Loom control computers C _j , C _{j + 1} , C
_{j + 2} is a central processing circuit CPU and a data memory RA
M, a first program memory ROM1 and a second program memory ROM2.

The actuator A _m and the detector S _m of each part of the loom are connected to the loom control computers C _j , C _{j + 1} and C _{j + 2} via the input / output port I / O. Communication interfaces I / F _j , I / F _{j + 1} and I / F _{j + 2} are connected to the respective loom control computers C _j , C _{j + 1} and C _{j + 2} .

The data memory RAM stores control data such as the loom rotational speed, warp tension, weft insertion timing, and weaving density. The first program memory ROM1 stores the loom control computers C _j , C _{j + 1} and C when the power of the loom is turned on.
_{j + 2} and communication interfaces I / F _j , I / F _{j + 1} ,
It is a read-only memory that stores an initial program for raising I / F _{j + 2} . Second program memory ROM
2 stores a program for controlling on the basis of the control data stored in the data memory RAM loom operation (i.e., driving of the actuator A _m). Both program memories R
The stored contents of the OM1 and the ROM2 are not erased by turning off the power of the loom.

C _H is a management computer for centrally managing the loom groups j, j + 1, j + 2. Management computer C _H
Is a central processing circuit CPU _H , data memory RAM _H
And a program memory ROM _H. An input device Ip is connected to the management computer C _H via an input / output port I / O _H. The data memory RAM _H is the loom j,
The control programs of j + 1 and j + 2 are stored. This control program is input by the input device Ip. A program for managing the loom j, j + 1, j + 2 is stored in the program memory ROM _H.

A communication interface I / F _H is connected to the management computer C _H. The communication interface I / F _H is connected to each loom j, j + 1, j via the communication line L.
+2 communication interface I / F _j , I / F _{j + 1} , I
/ F _{j + 2} .

2 and 3 are flow charts for performing the loom management. The management computer C _H is an input device Ip
The control program input by the data memory RAM
Store in _H.

First program memory when power is turned on
Based on the initial program of ROM1, weaving machine control computer
Data C_jCommunication interface I
/ F _jStands up. Management computer C_HAgainst woven
Machine control computer C_jTo transfer the control program to
Then, the management computer C_HIs data memory RAM _H
The control program stored in the communication interface
I / F_HCommunication interface I / F via_jTurn to
To send. Loom control computer C_jIs a communication interface
Source I / F_jControl program transferred to the second professional
It is stored in the gram memory ROM2. The second by this processing
Update the control program in the program memory ROM2 of
To be done.

When the weaving machine control computer C _j receives a weaving command, it controls the loom operation based on the control program stored in the second program memory ROM 2 and the control data stored in the data memory RAM.

To improve the functions of the control program, to add an optional device for the loom, and to modify the control program such as correction of defects in the control program, the loom control computers C _j , C of the respective loom j, j + 1, j + 2 are changed from the management computer C _H.
This is done by transferring the control program to _{j + 1} and C _{j + 2} . Therefore, the control program of the present embodiment can be easily changed as compared with the conventional program memory replacement, which requires a lot of labor.

First program memory stored in ROM 1
The initial program provided is the loom control computer C_j，
C_{j + 1}, C_{j + 2}And communication interface I / F_j, I
/ F _{j + 1}, I / F_{j + 2}Is the minimum required to get up
It is a program. In other words, this initial program cannot be changed.
It is an essential program.

The second program memory ROM2 is a readable / writable memory, but the stored information is not erased when the power of the loom is turned off. Instead of such a memory, a readable / writable memory RAM _{1 in} which stored information is erased when the power is turned off may be used. When a readable / writable memory RAM ₁ that erases stored information when the power is turned off is used, a backup power supply for this memory RAM ₁ may be prepared, and when the power of the loom is turned off, this backup power supply may be used to prevent information erasure.

When the backup power source is not used, a program for controlling the operation of the loom is stored in the memory of the management computer C _{H, and} each time the power of the loom is turned on, the management computer C _H sends the loom control computers C _j and C _{j. +1} , C
It is also possible to transfer the control program to _{j + 2} and store it in the memory RAM ₁ .

Although the management computer serves as the control program holding means in the above embodiments, an external storage medium such as a memory card may be used as the control program holding means. A configuration is also possible in which the control program is stored in an external storage medium and a memory card is communicatively connected to the loom control computer. By exchanging such an external storage medium that stores a different control program, the control program in the loom control computer can be changed.

[0022]

As described in detail above, according to the present invention, the control program is transferred to the loom control computer, so that the control program in the loom control computer can be updated without memory replacement.
It has an excellent effect that the control program can be easily changed.

[Brief description of drawings]

FIG. 1 is a loom management system diagram.

FIG. 2 is a flowchart for executing a control program change.

FIG. 3 is a flowchart for performing a control program change.

[Explanation of symbols]

C _H ... Management computer serving as control program holding means, C _j , C _{j + 1} , C _{j + 2} ... Loom control computer, R
OM2 ... second program memory that can be read and written, I /
F _H , I / F _j , I / F _{j + 1} , I / F _{j + 2} ... Communication interface constituting communication means, L ... Communication line constituting communication means.

Claims (3)

[Claims] 1. A loom control computer for controlling a loom based on a stored control program and control data, a control program holding means for storing a control program transferred to the loom control computer, and a loom control from the control program holding means. A loom management system comprising a transfer means for transferring a control program to a computer. 2. The loom control computer comprises a readable / writable memory for storing the control program transferred from the control program holding means, and a read-only memory for storing an initial program for starting the computer when the power of the loom is turned on. The loom management system according to claim 1, which is provided. 3. A readable / writable memory is a loom power source OFF.
The read-only memory, which is a memory that loses its stored information in association with the storage of the initial program, stores a transfer program for transferring the control program stored in the control program holding means to the readable / writable memory when the power is turned on. The loom management system according to claim 2.