Production control support device and production control support method

A production control and support device technology, applied in the direction of program control, total factory control, electrical program control, etc., can solve the problems of timing delay and time-consuming calculation

Inactive Publication Date: 2018-05-22
KK TOSHIBA
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  • Application Information

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Problems solved by technology

[0003] In the method using the production simulator, there is a problem that calculation takes time
On the other hand, in the method using the actual value, there is a problem that the timing of applying production control is delayed in a production line with a long production cycle (time from input to output)

Method used

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  • Production control support device and production control support method
  • Production control support device and production control support method
  • Production control support device and production control support method

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Embodiment Construction

[0016] The production control support device as an embodiment of the present invention is a production control support device for a production line in which a plurality of processes are connected in series, and one process includes: a buffer section for semi-finished products to wait for processing by a processing device; A plurality of processing devices, any one of which processes the semi-finished products waiting in the buffer. The above-mentioned production control support device includes a standby rate calculation unit. For the above-mentioned standby rate calculation part, when an upper limit is set for the number of semi-finished products in the above-mentioned production line, the relationship between the above-mentioned upper limit and the standby rate is calculated. The standby rate refers to: when the number of the above-mentioned semi-finished products reaches The above-mentioned upper limit value is the probability that the above-mentioned semi-finished product i...

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Abstract

A production control support device and a production control support method. The production control support device according to the embodiment of the present invention includes a standby rate calculation unit. The standby rate calculation unit is based on a processing device for parallel processing existing in each process connected in series. The number of units, the time interval for semi-finished products to reach the above-mentioned production line, the deviation value of the above-mentioned time interval, the time required for one device in each process to process one semi-finished product, and the deviation value of the above-mentioned required time are calculated based on the upper limit of semi-finished products in the production line Value ranges are assigned different functions, and the relationship between the above-mentioned upper limit value and the probability of being on standby immediately before the above-mentioned production line, that is, the standby rate is calculated for each of the above-mentioned ranges, and the function obtained by combining the functions of each range is based on The value of the above-mentioned standby rate monotonically decreases with the increase of the above-mentioned upper limit value.

Description

technical field [0001] Embodiments of the present invention relate to a production control support device and a production control support method. Background technique [0002] Conventionally, as a control method of a production line, a method of setting an upper limit (referred to as a WIP (Work-In-Process, work in process) upper limit) for the number of semi-finished products in the production line is known. As a method of determining the upper limit of WIP, there are two methods of using a production simulator and a method of using actual manufacturing values ​​of a production line on site. [0003] In the method using the production simulator, there is a problem that calculation takes time. On the other hand, in the method using actual values, there is a problem that the timing of applying production control is delayed in a production line with a long production cycle (time from input to output). The production cycle is also called the turnaround time (TAT: Turn Around...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/418
CPCG05B19/418G05B19/41865Y02P90/02G06N7/01G05B19/41875
Inventor 国信茂太吉田琢史
Owner KK TOSHIBA
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