JPH05225284A - Input device for printed wiring board manufacturing information - Google Patents

Abstract

PURPOSE:To input the manufacturing information even if a scale is unknown by providing a scale decision means which decides the scale (data unit) from the features of numeric data and a scale conversion part which multiplies the manufacturing information by an optional scale. CONSTITUTION:This input device includes the scale decision part 2 which decides whether the scale is the millimeter system or inch system from the features of numeric information in the given printed wiring board manufacturing information 1a and the scale conversion part 3 which multiplies the printed wiring board manufacturing information 1a by the optional scale. The printed wiring board manufacturing information 1a is read out of a magnetic tape, paper tape, magnetic disk, or on-line medium by an information input part 1 and then the scale decision part 2 decides the scale (data unit) from the features of the numeric data of the inputted manufacturing information. The scale conversion part 3 performs the scale conversion according to the decided scale and an information output part 4 outputs the manufacturing information 5 after the conversion to a medium such as a magnetic tape and a magnetic disk.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed wiring board manufacturing information input device, and more particularly to a scale converting means thereof.

[0002]

2. Description of the Related Art FIG. 4 is a block diagram showing the structure of a conventional printed wiring board manufacturing information input device. The information input unit 1 uses a printed wiring board manufacturing information as a medium (magnetic tape, magnetic disk,
It is read from paper tape, online, etc.) and passed to the scale conversion unit 3. The scale input unit 5 reads the input scale information (0.0001 to 10) from the terminal and passes it to the scale conversion unit 3. The scale conversion unit 3 multiplies the input manufacturing information of the printed wiring board by a given scale, performs scale conversion, and outputs the scale to the information output unit 4. The information output unit 4 outputs the converted manufacturing information to a medium (magnetic tape, magnetic disk, etc.).

[0003]

In the conventional information input device as described above, the scale (data unit) of the manufacturing information is required for the input operation, and the manufacturing information of which the scale is unknown is the printed wiring board manufacturing information. There was a drawback that the operator with had to analyze the manufacturing information to determine the scale. In addition, the data unit of the printed wiring board manufacturing data is not unified, and it is the current situation that the CAD machine to be designed is different from the millimeter type, the inch type, the 1/10 inch type, etc., which makes the operation difficult. It was

An object of the present invention is to eliminate such drawbacks and to provide a printed wiring board manufacturing information input device capable of inputting manufacturing information even if the scale (data unit) is unknown.

[0005]

The structure of the printed wiring board manufacturing information input device of the present invention has a scale of millimeter or inch based on the characteristics of the numerical information in the given printed wiring board manufacturing information. It is characterized by including a scale determination unit for determining whether or not, and a scale conversion unit for multiplying the printed wiring board manufacturing information by an arbitrary scale.

[0006]

FIG. 1 is a block diagram of an embodiment of the present invention. In this embodiment, the information input section 1, the scale determination section 2,
It is composed of a scale conversion unit 3 and an information output unit 4. That is, the scale conversion unit 3 for converting the data unit by multiplying the printed wiring board manufacturing information 1a given from the input information unit 1 and the printed wiring board manufacturing information 1 given.
The scale determination unit 2 determines the scale (unit of data) of A based on the characteristics of the numerical data.

In this embodiment, the information input section 1 reads the printed wiring board manufacturing information 1a from a medium such as a magnetic tape, a paper tape, a magnetic disk, or an online, and then the scale determination section 2 inputs numerical data of the manufacturing information. The scale (data unit) is determined by the characteristics. The scale conversion unit 3 performs scale conversion according to the determined scale, and the information output unit 4 outputs the converted production information 5 to a medium such as a magnetic tape or a magnetic disk.

Next, the operation of the scale determination unit 2 will be described with reference to FIGS. 2 and 3. 2 is a flowchart showing the operation of the scale determination unit 2, and FIGS. 3A and 3B are flowcharts showing the operation of the determination units 14 and 15 in the scale determination unit in detail.

First, in step 11, a part (1024 to 409) of the manufacturing information 10 of the printed wiring board is used for scale determination.
Read about 6 bytes. Next, in step 12, the minimum coordinate XMIN and the maximum coordinate XMA of the X coordinate are selected from this data.
The minimum coordinate YMIN of the X and Y coordinates, the maximum coordinate YMAX, and the number of coordinates (including X and Y) CNT are obtained. In addition, the number of coordinates MD in which the remainder becomes 0 when all the coordinate data are divided by 100
The number of coordinates M where the remainder when divided by 100 and 1000 becomes 0
And D1000.

Next, in step 13, (XMAX-XMI
N) and the larger absolute value of (YMAX-YMIN) is L
As a result, the length L in the longitudinal direction of the printed wiring board is obtained, and the process proceeds to the inch / millimeter determination unit 14 and the data unit determination unit 15.

Next, with reference to FIG. 3A, a method for obtaining a scale for converting manufacturing information into millimeter units will be described.
The scale value for converting the manufacturing information of the printed wiring board of an arbitrary unit into the millimeter unit is between 0.0001 and 0.254. First, the printed wiring board manufacturing information 10 is IC (LS
It is likely to ride on the 2.54 mm grid between the standard pins of I). Inch system of data unit using this feature,
Inches and millimeters determination part 1
4 (FIG. 3A). That is, steps 22 and 2
Coordinates that can be divided by 100 and 1000 by 3 are 20% of the total
If it exceeds (YES), (MD100 / CNT ≧ 0.2, MD1000 /
Since it can be determined that CNT ≧ 0.2) and the unit is an inch system, the scale is multiplied by 2.54 in step 24.

Next, in the case of the data unit determination unit 3 of FIG. 3B, this is a part for obtaining the data unit by utilizing the feature that the size of the printed wiring board is 800 mm or less. That is, first, in step 31, the initial value of the scale 0. 0 calculated by the inch / millimeter determination unit 14 of FIG.
The length of the wiring board is provisionally calculated by multiplying L by 1 or 0.254. In step 32, it is judged whether or not this length L is larger than 8.000. If it is larger, the scale is set to 1/100 times in step 33, and in step 34, 800-
The range of 8,000 is determined, and if it is within this range, the scale is multiplied by 1/10 in step 35 to finally obtain the scale to be converted into millimeter units.

[0013]

As described above, according to the present invention, it is possible to reduce the number of steps because it is not necessary to analyze the manufacturing information even when the manufacturing information of the printed wiring board whose data unit is unknown is input. There is an effect that even an operator who does not have knowledge of board manufacturing information can input manufacturing information whose data unit is unknown.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

FIG. 2 is a flowchart illustrating the operation of FIG.

3A and 3B are flowcharts showing details of a scale determination unit and a scale conversion unit in FIG.

FIG. 4 is a block diagram showing the configuration of a conventional printed wiring board manufacturing information input device.

[Explanation of symbols]

 1 information input part 1a, 5, 10 printed wiring board manufacturing information 2 scale determination part 3 scale conversion part 6 scale input part 6a scale information 11-15, 21-24, 31-35 processing step

Claims (1)

[Claims] 1. A scale determination unit that determines whether the scale is a millimeter system or an inch system based on the characteristics of numerical information in the given printed wiring board manufacturing information, and an arbitrary scale for the printed wiring board manufacturing information. A printed wiring board manufacturing information input device comprising: a scale conversion unit capable of applying a scale.