JP2507629B2 - Automatic wiring processing system - Google Patents

Description

TECHNICAL FIELD The present invention relates to an automatic wiring processing system, and more particularly to an automatic wiring processing system in a printed wiring board or an LSI design support system (CAD system).

2. Description of the Related Art This type of automatic wiring processing system is provided with a function of displaying a wiring processing status, and is limited to displaying numerically a success rate of wiring processing called a wiring rate.

Since the conventional wiring processing status display function of the automatic wiring processing system only displays the wiring rate up to the present time, it is difficult to predict how long the subsequent wiring processing will end. There is a drawback.

SUMMARY OF THE INVENTION Therefore, the present invention has been made to eliminate such drawbacks of the prior art, and an object thereof is to provide an automatic wiring processing system capable of predicting the end time of wiring processing. To provide.

Configuration of the Invention The automatic wiring processing system according to the present invention, the prediction means for predicting the time until the end of the wiring using the wiring processed data up to the present time, and means for displaying the prediction result and the wiring processed data. It is characterized by including and.

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

FIG. 1 is a system block diagram of an embodiment of the present invention. The input / output device 1 has a function of inputting data for automatic wiring processing and also displaying the automatic wiring status, which is a feature of the present invention.

The storage device 2 stores the data input by the input / output device 1 and the automatic wiring result, and is accessed by the arithmetic processing device 3 when necessary.

The arithmetic processing unit 3 reads out the automatic wiring data from the storage unit 2 and executes and controls the processing according to the function of the automatic wiring processing mechanism 4.

The automatic wiring processing mechanism 4 includes an automatic wiring processing unit 5, a wiring processed data generation unit 6, a wiring end time prediction unit 7, and a display control unit 8.

The automatic wiring processing unit 5 performs a wiring process while searching for an optimum wiring path for a wiring section that requires wiring, and has a known configuration.

When the wiring processing unit 5 finishes the wiring of the section successfully, the wiring-processed data generation unit 6 recalculates the wiring-completed ratio up to that point and performs the update process, and the wiring time required up to that time. Also, the integrated update processing of the results is performed to generate the wiring-processed data.

The wiring end time prediction unit 7 is a wiring processed data generation unit 6
It has a function of predicting the time from the latest wiring-processed data obtained by to the end of wiring.

The display control unit 8 controls the display of the wiring-processed data and the wiring end predicted time data described above on the display unit of the input / output device 1.

FIG. 2 is a flow chart showing the operation of the system block of FIG. 1, and the operation of each of the functional units 5 to 8 of FIG. First, the unwired section is searched and extracted from the storage device 2 (step 51). If there is no unwired section, the automatic wiring process ends. If there is, the optimum wiring route is searched for the extracted unwired section, and if the wiring route is found, the wiring process is performed (step 52).

In this case, since the wiring is successful, the wiring status data, that is, the wiring processed data is updated (step 61). The wiring rate, which is the ratio of the wiring completed section to the entire wiring section, is updated and calculated, and the actual value of the wiring time required up to that point is updated and calculated (step 6).
2).

At this time, it is assumed that the relationship of the wiring rate with respect to the wiring time is stored in the storage device 2 as history information, and an example showing the relationship is a graph shown by the thick solid line in FIG. In this example, it is shown that about 97% of wiring is completed in the wiring processing for 3 hours, and the higher the wiring rate, the smaller the differential coefficient of the curve is. It shows that the wiring is crowded and it takes time to search for the optimum wiring route.

In the next wiring end time prediction step 71, the current wiring end time is predicted. This is calculated from the relationship of the solid line in FIG. 3 which is the current wiring processed data. That is, the close battle (indicated by the one-dot chain line) on the solid curve at the current time of 3 hours is obtained, and the point where the wiring rate of 100% and the tangent intersect is the final predicted end time,
Actually, as described above, the search for the wiring route becomes gradually difficult, and if the wiring failure is also taken into consideration, the wiring rate curve has an asymptotic line at the wiring rate of 100% (shown by a dotted line).

Therefore, the expected end time is calculated using this asymptote. At this time, the expected number of wiring failure sections is calculated by using an empirically obtained ratio (several percent) with respect to the total number of wiring sections. It is calculated.

The display control unit 8 controls such that the wiring status data and the expected data are visually displayed, resulting in the third
The screen is displayed as shown in the figure (Step 8
1).

EFFECTS OF THE INVENTION As described above, according to the present invention, the progress of the wiring process is displayed as a graph in a time-sequential manner and the tangent line is also displayed, thereby predicting the progress of the wiring process and the time until the end. The effect is that you can easily know.

[Brief description of drawings]

FIG. 1 is a system block diagram of an embodiment of the present invention, FIG. 2 is a flow chart showing an operation of the embodiment of the present invention, and FIG. 3 is a diagram showing an example of a display mode. Description of symbols of main parts 5 ... Wiring processing unit 6 ... Wiring processed data generation unit 7 ... Wiring end time prediction unit 8 ... Display control unit

Claims (1)

(57) [Claims] 1. A prediction means for predicting a time until the end of wiring by using the wiring-processed data up to the present time, and a means for displaying the prediction result and the wiring-processed data. Automatic wiring processing system.