JP2747090B2 - Manufacturing process management system - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a manufacturing process management system using a computer, and more particularly to a management system using a hierarchical computer system including a host computer and a sub-host computer. .

[Conventional technology]

Conventionally, this type of manufacturing process management system manages all data of all processes by one host computer, and passes the data to the host computer for processing each time the operation of one managed process is completed. I was

[Problems to be solved by the invention]

In the conventional manufacturing process management system described above, since all requests from terminals pass to the host computer, when requests from terminals are concentrated, the amount of work of the host computer increases, and the result of processing to the terminal is returned. , Its response time may be slow. Further, when the host computer becomes inoperable for some reason, there is a disadvantage that all terminal operations become impossible.

An object of the present invention is to provide a manufacturing management system which is not one-point centralized management as described above.

[Means for solving the problem]

The manufacturing process management system according to the present invention includes a host computer that manages the entire plurality of processes based on first management data that manages the entirety of the plurality of processes, and a host computer that is connected to the host computer and controls some of the plurality of processes. And a plurality of sub-computers that directly manage the several processes based on the second management data sent from the host computer in order to collectively manage the processes. Between the processes, the data is transferred between the processes via the second management data, and the sub-computer processes the second management data after all the processes to be directly managed are completed, and
To the host computer, and the host computer updates the first management data based on the transmitted third management data and sends the second management data to a sub-computer that manages the next process. This is sent as management data.

[Action]

The system of the present invention manages several processes in the manufacturing process as a group, and the processes in this group are not directly controlled by the host computer but are managed by the sub host computer. This prevents the host computer from being burdened with excessive work.

〔Example〕

A first embodiment of the present invention will be described with reference to the drawings.
In a hierarchical management system using computers, first, manufacturing processes are classified and classified. FIG. 2 shows an example of the classification. The minor classification is the minimum unit of the process to be managed,
Steps 1 to 10 show actual working steps. The middle classification represents a middle process when the small classifications are grouped. For example, the process 11 is a collection of the processes 1 to 3, and the large classification is a collection of the middle classification processes.

FIG. 1 is an example of a configuration diagram of a computer system constituting a process management system according to the above classification. For one host computer 17, four sub-host computers 18 to 21 and a data input / output terminal
22 to 32 have 11 units. The sub-host computers 18 to 21 correspond to the middle-class processes 11 to 14 shown in FIG. 2, respectively, and manage the sub-class processes included therein, and store the information in the data 34 to 37, respectively. I have. Hereinafter, the term “data” refers to a memory for storing data, or the content itself.

The sub host computer 18 controls three terminals 24 to 26, and the sub host computer 19 controls one terminal 27 and responds to requests from each terminal. The sub-host computers 20, 21 operate in the same manner.

Hereinafter, a data management method will be described. The sub host computer 18 holds and manages the detailed data 34 of the steps 1 to 3, and performs the processing based on the input data from the terminals 24 to 26. Further, the sub host computer 18 processes the data of the steps 1 to 3 after the work completion report from the last step 3 to be managed, and processes the data of the
Pass to. The host computer 17 processes the large-class and middle-class data 33 held by the data, and at the same time, passes necessary data to the sub-host computer 19 that manages the next step 4. By passing this data, subsequent data input can be simplified.

Inquiries about management data can be made from the terminals 22 and 23 connected to the host computer 17, and inquiries about the major and middle classification steps can be made from the data 33 managed by the host computer 17. The inquiry about the sub-classification process can be made by passing the contents of the inquiry to the sub-host computers 18 to 21 and referring to the data 34 to 37. Also, the sub host computer 18 ~
By using the terminals 24 to 32 connected to 21, the data 34 managed by each sub-host computer 18 to 21 is controlled.
Inquiries and extractions of ~ 37 are also possible.

Next, a second embodiment will be described. In this example, not all processes in the manufacturing process are grouped and managed by the sub host computer, but if there is a process that generates a lot of data among all processes or there is a process that requires particularly detailed management , Only that part is managed by the sub host computer. FIG. 3 shows a configuration example of such a system. Host computer 38
And one sub host computer 39, and nine data input / output terminals 40 to 48 are connected. The form in which the host computer 38 manages the entire process is the same as in the previous example, but the sub-host computer 39 holds and manages detailed data 50 such as control data of production equipment and measurement results from measuring instruments, and also inputs data. The output terminals 40 to 42 and the inquiry terminals 47 and 48 are controlled. The terminals 40 and 41 are connected to the production equipment 51 and the measuring instrument 52 using a communication procedure.The production equipment 51 receives the control data from the data 50 of the sub-host computer 39 via the terminal 40 and operates automatically. It becomes possible. The measuring device 52 sends the measurement result to the terminal 41, and the terminal 41 sends the data to the sub-host computer 39 and holds the data in the data 50.

On the other hand, the host computer 38 stores management data for all processes.
49, and further controls the data input / output terminals 45 to 46 and the inquiry terminals 43 and 44, and responds to processing requests from the terminals 43 to 46, processing requests from the sub host computer 39, and the like.

〔The invention's effect〕

As described above, the present invention realizes a process management system by one host computer and a plurality of sub-host computers, and the processing can be distributed by data managed by each computer,
The load on the computer itself is reduced as compared with a system in which all the data is managed by a single device, and a timely response to a request from a terminal becomes possible. Also, since the computer is small, the cost of building the system is low. Further, even if one computer goes down due to a failure, if another computer is operable, there is an effect that some processing can be performed within the management of the operable computer.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of one embodiment of the present invention, FIG. 2 is a classification diagram of the steps managed by the system, and FIG. 3 is a system configuration diagram of another embodiment. 17 host computer, 18-21 sub host computer, 22-23 input / output terminal, 33-37 data (data storage memory), 32 host computer, 39 sub host computer, 40-48 terminal, 49-50 ... data (data storage memory), 51 ... production equipment, 52 ... measuring instruments.

Claims (1)

(57) [Claims] 1. A manufacturing process management system for managing a plurality of processes, wherein the manufacturing process management system manages the entire plurality of processes based on first management data for managing the entirety of the plurality of processes. A plurality of computers that are connected to the host computer and directly manage the some steps based on second management data sent from the host computer to collectively manage some of the plurality of steps; And a subcomputer of
Between the steps directly managed by the sub-computer, data transfer between the steps is performed via the second management data, and the sub-computer transmits the second The management data is processed and passed to the host computer as third management data, and the host computer updates the first management data based on the transmitted third management data and manages the next step. A manufacturing process management system, wherein the second management data is sent to a subcomputer that performs the process.