JPH07296053A - Production simulator - Google Patents

Abstract

PURPOSE:To save labor and time for preparing a simulation model and to describe detailed model data by making simulation data on an equipment consider the capability of the equipment in the simulation of a production line. CONSTITUTION:This simulator includes a reference data preparing means 1 preparing reference data to be the reference of the simulation model such as a process procedure, the number of devices, the working rate of the devices, working time, etc., by summing up production result data obtained from the production lines, an equipment performance data setting means 2 inputting equipment performance data expressing the processing capability of each equipment, a simulation model preparing means 3 preparing simulation model data in accordance with equipment performance data by reading reference data, and a simulation execution means 4 which executes simulation by reading simulation model data and outputs result data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a production simulation apparatus and method for estimating product production based on data relating to a production line such as equipment capacity and process procedures.

[0002]

2. Description of the Related Art A conventional production simulation apparatus of this type will be described with reference to FIG.
_{For example, it is disclosed in JP-A-62-135958.
As described} above, when simulating _a production line, the actual production data obtained from the production line management system is aggregated and the reference data such as the process procedure, the number of equipment, the equipment operating rate, and the working time created by the reference data creation means 1 is used. The simulation model data creating means 3 creates the simulation model data, and the simulation executing means 4 performs the simulation.

[0003]

In the conventional model automatic generation type production simulation apparatus as described above, the reference data obtained from the higher-level production line management system reflects the capability of each apparatus in detail. There is no sufficient processing time data and it is not reflected in the simulation model.

In order to manually input these data, the simulation model becomes large when the target production line becomes huge, and it takes a lot of labor to describe the data, which is not suitable for practical use.

Therefore, in the conventional production simulation apparatus, although the simulation based on the model faithful to the reference data can be performed, the simulation based on the model more detailed than the reference data including the data regarding the difference in the processing performance of the apparatus is performed. It is not possible.

[0006]

The production simulation device of the present invention is a basis of a simulation model including the process procedure, the number of devices, the equipment operating rate, and the working time by totalizing the production performance data acquired from the production line. Reference data creating means for creating reference data, device performance data setting means for inputting device performance data representing the processing capacity of each device, and a simulation for reading the reference data and creating simulation model data according to the device performance data a model generating _means, configured to include a simulation execution means for outputting the resulting data to simulate loading the simulation model data.

In the production simulation method of the present invention, the production performance data acquired from the production line is totaled, and the reference data which includes the process procedure, the number of equipment, the equipment operation rate, and the working time and which is the basis of the simulation model is created. Data creating means, device performance data setting means for inputting device performance data representing the processing capacity of each device, simulation model creating means for reading the reference data and creating simulation model data according to the device performance data _, And simulation execution means for reading simulation model data, performing simulation, and outputting result data.

[0008]

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. As an example, a case will be described in which a simulation is performed in consideration of a difference in processing time due to a difference in processing capability for each device in the same device group.

In a large-scale production system having many working conditions and the number of devices, the number of processing time data for each device / working condition becomes enormous.

Data is taken out from a higher-level production line management system or the like, and reference data creating means 1 creates reference data including reference data relating to the processing time for each device group working condition.

The simulation model creating means 3 calculates a coefficient for the processing time for each device based on the device performance data input by the device performance data setting means 2,
The processing time of the device on the model is set by increasing or decreasing the processing time for each work condition of the device group in accordance with the above coefficient to create simulation model data.

The simulation executing means 4 reads the simulation model data, performs a simulation, and outputs the result data.

Usually, when repeating simulations, it is sufficient to change simulation parameters and repeat the model data creating means 3 and the simulation executing means 4, and it is not necessary to create reference data.

[0015]

As described above, according to the _{present invention,} by creating a simulation model in accordance with device performance data, it is possible to easily create a detailed simulation model including the processing time of each device and to improve the simulation accuracy. There is an effect _of improving.

[Brief description of drawings]

FIG. 1 is a block diagram of a simulation device of the present invention.

FIG. 2 is a block diagram of a conventional simulation apparatus.

[Explanation of symbols]  1 Reference data creating means 2 Device performance data setting means 3 Model data creating means 4 Simulation executing means

Claims (2)

[Claims] 1. A reference data creating unit for creating reference data, which is a base of a simulation model, including process procedures, the number of devices, a device operating rate, and a working time by totalizing production performance data acquired from a production line, and a device. Device performance data setting means for inputting device performance data representing each processing capacity, a simulation model creation means for reading the reference data and creating simulation model data according to the device performance data, and _a simulation for reading the simulation model data And a simulation executing means for outputting the result data. 2. A reference data creating unit that collects production result data acquired from a production line and creates reference data that includes a process procedure, the number of devices, an equipment operating rate, and a working time and is a basis of a simulation model, and an apparatus. Device performance data setting means for inputting device performance data representing each processing capacity, a simulation model creation means for reading the reference data and creating simulation model data according to the device performance data, and _a simulation for reading the simulation model data And a simulation executing means for outputting the result data.