JPS63211069A - Circuit diagram input system - Google Patents

Abstract

PURPOSE:To efficiently generate a circuit diagram by inputting the circuit diagram as a hand-written rough sketch and designating patterns, attributes, etc., of individual circuit elements on the rough sketch displayed on a screen. CONSTITUTION:When a hand-written circuit diagram 1 is scanned with an image scanner 2 and is inputted to a processor 3, its image is stored in an image memory 4 and is displayed in a prescribed color on a CRT display device 5. A generator sees the hand-written circuit diagram displayed on the screen of the display device 5 to point symbol positions of individual circuit elements with a pointing device 6 and uses a keyboard 7 to give attributes ID of circuit elements. After they are stored in an input data storage part 8, a circuit element library 10 is retrieved by a circuit information generating part 9 to generate a wiring pattern, and this pattern is stored in a circuit information file 11. Symbol patterns are written in the memory 4 by a fair copy drawing informa tion generating part 12. Thus, the drawing as a fair copy is displayed on the display device 5 to efficiently generate the circuit diagram.

Description

[Detailed Description of the Invention] [Summary] When directly inputting a circuit diagram on the screen using a conventional circuit diagram input device, a lot of effort and time were required to layout two circuit elements. First, a rough sketch of the circuit diagram is input by hand, and a fine-printed circuit diagram is created by specifying the pattern, rs property, etc. of the two individual circuit elements on the rough sketch displayed on the screen.

[Industrial application field]

The present invention relates to a one-figure processing system, and more particularly to a circuit diagram input method for creating circuit design drawings such as logic circuits and storing them in encoded format.

[Conventional technology]

When creating circuit diagrams using a schematic input device such as a technical workstation that has conventional circuit diagram creation functions,
on the CRT display screen.

A direct creation method is used in which patterns of individual circuit graphic elements are called up using commands, icons, etc., and patterns for connecting each circuit graphic element and attribute data are input.

By the way, in recent logic circuit designs, the two-circuit function has become more sophisticated.
Many things have become more complex, resulting in larger circuits and an increase in the number of logic circuit elements.

As exemplified in Figure 4, each drawing is a large-sized drawing with 9
With the screen size of a normal CRT display, it is often impossible to view an entire circuit at the same time.For this reason, each circuit graphic element must be placed appropriately, taking into consideration legibility, aesthetics, etc. The layout work becomes troublesome.
It was taking time.

To improve this point, we created a logic circuit diagram by hand on a large piece of paper, read it with an image scanner, and input the entire diagram as graphic data.

A method was devised to automatically code each circuit graphic element, connection, etc. by performing pattern recognition processing.

However, in this case, it is quite difficult to improve the accuracy of pattern recognition of handwritten graphic elements, and there is also the drawback that the cost of the software increases.

[Problem that the invention seeks to solve]

With conventional circuit diagram input devices, drawings are made directly on the screen of a CRT display, which causes various inconveniences when creating large-scale circuit diagrams.

[Means for solving problems]

In the present invention, when creating a circuit diagram using a conventional circuit diagram input device, two creators can draw a circuit diagram schematically by hand in advance (
Focusing on the fact that people usually prepare a rough sketch (a rough sketch) and refer to it next to the equipment when inputting data onto a CRT display screen, the hand-drawn circuit diagram was transferred to an image scanner. By inputting information and displaying it on a CRT display, it is possible to input circuit diagrams by treating the screen as a piece of paper and copying the draft.

FIG. 1 shows, by way of example, the basic structure of the circuit diagram input method according to the present invention.

In FIG.

1 is a handwritten circuit diagram drawn schematically (rough sketch) on nine pieces of paper.

2 is an image scanner that reads 9 handwritten circuit diagrams 1;

3 is a processing device having two circuit diagram creation functions.

4 is a 9-bit map image memory.

5 is a CRT display.

6 is a pointing device such as a light pen used to specify a position on the screen of the CRT display 5.

7 is a keyboard used to input attributes of one circuit element, etc.;

8 is an input data storage section.

Reference numeral 9 denotes a single circuit information creation section.

10 is a circuit element library that manages attribute IDs, symbols (patterns), characteristics, etc. in association with each other for each two circuit elements.

11 is a circuit information file that manages the circuit information created in 9 in code format.

Reference numeral 12 denotes a fair drawing information creation unit that converts one circuit information into an image in a bitmap format.

[Effect]

In FIG. 1, the operation is as follows.

The creator applies a handwritten circuit diagram 1 rough sketched on paper in advance to an image scanner 2 and inputs it to a processing device 3.

The image data of the input handwritten circuit diagram 1 is as follows.

The image is stored in the image memory 4, and at that time, a predetermined color, for example yellow, is set in the attribute.

The output is displayed on the CRT display 5 in yellow.

The creator looks at the handwritten circuit diagram displayed on the screen of the CRT display 5, specifies the position of the symbol of each circuit element using the pointing device 6, and uses the keyboard 7 to enter the attribute ID, For example, “L”
SOO'', bin connection information, etc.

The input position and attribute ID of the circuit element are stored in the input data storage section 8 and then passed to the circuit information creation section 9.

The circuit information creation unit 9 searches the 1-circuit element library lO, extracts element data such as symbols (patterns) and characteristics of the circuit element corresponding to the input attribute ID, and also creates wiring between elements from the connection information of the bin. Create a pattern.

These circuit information are stored in the circuit information file 11 together with nine position data. Further, the symbols and position data 2 wiring patterns, etc. are sent to the fair drawing information creation section 12, where the symbol pattern for the fair drawing is written in the area of the image memory 4 indicated by the position data. Similarly, the wiring pattern is also written.

The attribute color of the symbol pattern for the clean drawing written in the image memory 4 is set to a different color (yellow) from the attribute setting color (yellow) for the handwritten circuit diagram 2, for example, and is displayed on the CRT display 5 as a clean symbol. The output will be displayed.

In Figure 2, the 0 dotted line indicates the handwritten symbol (yellow ), the solid line represents the corrected symbol (red).Instead of distinguishing the two symbols by color, they may be distinguished by the difference in brightness or other display attribute.

In this way, the 9 creator sequentially specifies the position and attribute ID of each circuit element in the 9 handwritten circuit diagram, as well as the connection status of the bins, and replaces them with the clean-cut symbols.

Also, by wiring between the elements, the clean-cut circuit diagram is completed.

In this case, the positions and wiring relationships of each circuit element are roughly shown in the 9 handwritten circuit diagram, so the 1 creator does not have to think about the layout again, and since the drawing is large, it cannot be easily seen on the CRT display screen. Even if only part of it is visible.

The need to refer to the rest is greatly reduced.

〔Example〕

FIG. 3 shows the hardware configuration of one embodiment of the circuit diagram input method according to the present invention.

In fig.

13 is a CPU.

14 stores programs and input data.

It is also a memory used as various work areas. Image memory is also part of it. but.

It is also possible to configure the image memory as an independent element. Furthermore, it is also possible to divide the image memory into two parts for one handwritten drawing and one for one hard copy drawing and parallelize them.

15 is an image scanner.

16 is a color CRT display keyboard.

17 is a tablet used as a pointing device. It is also possible to replace it with a light ben, mouse, etc.

18 is a disk device that holds a two-circuit element library and circuit information files.

〔Effect of the invention〕

According to the present invention, circuit diagram input is performed based on a rough sketch displayed on a CRT display, so input operations can be performed in a kind of tracing manner, and extra effort is not expended for layout. and is not affected by the size of the drawing.

Therefore, it is possible to efficiently create a circuit diagram with fewer errors.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the basic configuration of the present invention, FIG. 2 is a diagram showing an example of a circuit diagram displayed on a screen for explaining the present invention in detail, and FIG. 3 is a diagram showing a schematic diagram of one embodiment of the present invention. - Daunier block diagram, FIG. 4 is a comparative explanatory diagram of a circuit diagram and a screen in a conventional circuit diagram input device. In Figure 1. 1: Handwritten circuit diagram 2: Image scanner 4: Image memory 5: CRT display 6: Pointing device 7: Keyboard 9: Circuit information creation unit IO: Circuit element library 11: Circuit information file 12: Fair drawing information creation unit Patent applicant Representative of User Fuku Electronics Industry Co., Ltd.
Patent attorney Haseyo Fumihiro (2 others) Taniuchi 5th Tsukikunijiri 15th
910,000 energy 1 country

Claims (1)

[Claims] Image scanner (2), image memory (4) CRT
Display (5), pointing device (6),
In a circuit diagram input device that is equipped with a keyboard (7) and a circuit element library (10) and has a circuit diagram creation function, a handwritten circuit diagram (1) created in advance is read with an image scanner (2) and its image data is read. is stored in the image memory (4), and the CRT display (5) is stored in the image memory (4).
), then point device (6) and keyboard (
7), data such as the symbol pattern, characteristics, etc. of the circuit element corresponding to the attribute identification name is retrieved from the circuit element library (10) according to the position data and attribute identification name of the circuit element input using A circuit diagram input method characterized in that a pattern is output and displayed in a screen area specified by position data with an attribute different from the output display attribute of the handwritten circuit diagram (1).