JPH0290782A - Drawing positioning instructing system - Google Patents

Abstract

PURPOSE:To correctly and accurately set a drawing by supplying display representing the preset size and direction of the drawing at the time of setting the drawing, and transparentizing the entire plane of a liquid crystal display plane with the start of reading. CONSTITUTION:The liquid crystal display plane 3 is provided on a drawing setting plane, and display screen data is generated according to a parameter set at a parameter setting register 1, and a liquid crystal control means 4 applies a voltage on an electrode selected based on the display screen data, and the reading range and the direction of the drawing are displayed on the liquid crystal display plane 3. When the control of the drawing is completed and a drawing reading part (image scanner) is started up by covering, the liquid control part 4 supplies the voltage on all the electrodes on the liquid crystal display plane 3, and switches an operation to the one perform the transparentization of the entire plane. In such a manner, it is possible to perform the reading of the drawing on the liquid crystal display plane 3 without being disturbed by the image scanner.

Description

[Detailed Description of the Invention] [Summary] Parameters that hold set values for the size and orientation of a drawing, with the purpose of instructing an automatic drawing input device to accurately center the drawing with no errors, regarding the positioning of the drawing. a setting register, a display screen creation means for creating display screen data of a drawing reading range and drawing direction to be displayed on the liquid crystal display surface according to parameters set in the parameter setting register, and a display screen creation means provided on the drawing set surface. a liquid crystal display surface that displays the display screen created by the display screen, and a liquid crystal control that applies voltage to selected electrodes of the liquid crystal display surface based on the display screen data created by the display screen creation means and switches to apply voltage to all electrodes in accordance with control input. When the drawing is read, a display indicating the set drawing size and drawing orientation is provided, and the liquid crystal display surface becomes completely transparent when reading starts.

[Industrial application field]

The present invention relates to a method for positioning drawings in an automatic drawing input system.

Generally, automatic drawing input systems, as shown in Figure 7,
A recognition processing unit (not shown) reads the drawing data by setting the drawing G with its surface facing down on a glass plate door and optically scanning the drawing information irradiated by the light source H with the drawing reading unit S (image scanning unit). The data is recognized and stored in a file, etc. as vector/character/symbol data. Therefore, depending on the orientation of the read data, especially in the case of characters, there is a risk of erroneous recognition during subsequent recognition processing. The orientation of data when inputting drawings is important for correct recognition.

[Conventional technology]

Conventionally, in automatic drawing input systems, it has been common to set drawings after specifying parameters.

The parameters referred to here refer to specifications such as the portrait/horizontal orientation of the drawing, the input orientation (horizontal/horizontal), etc. For example, the setting is made according to a drawing written on A3 paper arranged vertically, a drawing written on horizontal arrangement, a drawing written on A4 paper arranged vertically, etc.

Parameters are specified by displaying a parameter setting screen on the display device and using the keyboard.

It may also be done using parameters that have already been set.

[Problem to be solved by the invention]

In conventional drawing automatic input systems, when using parameters that have already been set, if the memory of the parameter contents is ambiguous, it is necessary to return to the display and confirm the parameter contents on the screen again.

Furthermore, if the orientation and position of the drawing when setting it do not match the parameter contents, the input must be made again, which is very inefficient.

The problem to be solved by the present invention is to provide a positioning method that solves these conventional problems, allows the correct setting method to be determined on an image scanner, and efficiently performs drawing input work.

[Means to solve the problem]

FIG. 1 is a diagram showing the principle of means for solving the above-mentioned problem.

In the figure, 1 is a parameter setting register that holds setting values for the size and direction of the drawing.

2 is a display screen creation means, and a parameter setting register 1
Display screen data of the drawing reading range and drawing direction to be displayed on the liquid crystal display surface 3 is created according to the parameters set in .

Reference numeral 3 denotes a liquid crystal display screen, which is provided on the drawing setting surface and displays the display screen created by the display screen creation means 2.

Reference numeral 4 denotes a liquid crystal control means, which applies voltage to selected electrodes of the liquid crystal display surface 3 according to the display screen data created by the display screen creation means 2, and switches to apply voltage to all electrodes in accordance with a control input.

[For production]

In the present invention, a liquid crystal display surface 3 is provided on the drawing setting surface, display screen data is created according to the parameters set in the parameter setting register 1, and the liquid crystal control means 4 applies voltage to selected electrodes based on the display screen data. The drawing reading range and drawing direction are displayed on the liquid crystal display screen 3.

As a result, the drawing input worker can know the parameters to be set, and can accurately set the drawing in accordance with the position of the displayed drawing reading range without error.

When the drawing control is completed, the lid is closed, and the drawing reading section (image scanner) is started, the liquid crystal control section 4 applies voltage to all electrodes on the liquid crystal display surface 3, and switches the screen so that the entire surface is transmitted.

As a result, images can be read without being obstructed by the liquid crystal display surface 3.

〔Example〕

The present invention will be explained in more detail below with reference to embodiments shown in FIGS. 2 to 6.

FIG. 2 is a side sectional view of a device to which the present invention is applied, and FIG. 3 is an external view of the device to which the present invention is applied.

The drawing G is placed on the liquid crystal display surface provided on the glass plate, and the light from the light source H is transmitted through the glass plate P and the liquid crystal display surface to illuminate the information writing surface of the drawing G. By optically scanning S, the information in drawing G is read.

FIG. 4 is a diagram showing a system configuration of an embodiment of the present invention.

The system shown in FIG. 4 is an automatic drawing input system,
100 is a CPU and a memory section of a microprocessor that controls the entire system. Control of the drawing positioning instruction mechanism of the present invention is also performed within this system.

A scanner 200 constitutes the drawing reading section S shown in FIG. 2, and optically scans the drawing, reads the drawing data, and converts it into binary image data.

300 is a well-known recognition processing unit which extracts the features of each element of the read binary image data, compares them with the dictionary 400, and outputs them as vector/character/symbol data.

A display 500 includes a keyboard and provides a man-machine interface between the system and the operator.

A host computer interface 600 exchanges signals with a host computer (not shown), transmits and stores data that has been recognized.

FIG. 5 is a diagram showing an example of a display screen of a liquid crystal display surface in an embodiment of the present invention.

In the figure, a is a frame indicating the drawing reading range, and b is an arrow indicating the direction of the drawing.

FIG. 6 is a diagram showing the configuration of an embodiment of the present invention.

In the figure, 11 is a size setting register, which holds set drawing size data. A direction setting register 12 holds set drawing direction data. Settings to the size setting register 11 and direction setting register 12 are performed using keys on the operation panel shown in FIG.

21 is a display screen selection section, which includes a CPU and a memory section 10;
The display pattern data 22, 23, and 24 degrees is composed of a program of 0 and is stored in the memory of the CPU and memory unit 100 based on the data set in the size setting register 11 and the direction setting register 12. Select one.

Reference numeral 30 denotes a liquid crystal display surface, which is attached to the drawing set surface and displays a display pattern.

Reference numeral 41 denotes a display control section which reads out the display pattern data selected by the display screen selection section 21 and controls the electrodes of the liquid crystal display surface 30 to perform display corresponding to the display pattern data. In addition, the display control unit 41 applies a voltage to all electrodes in response to a drawing reading activation signal from the CPU and memory unit 100 shown in FIG. do.

〔Effect of the invention〕

As described above, according to the present invention, drawings can be set accurately without errors, recognition processing is performed as correct data, and the effect of contributing to improving the efficiency of drawing input processing is significant.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the principle of the present invention, Fig. 2 is a side sectional view of an apparatus to which the invention is applied, Fig. 3 is an external view of an apparatus to which the invention is applied, and Fig. 4 is an embodiment of the invention. Figure 5 shows an example of a display screen according to an embodiment of the present invention; Figure 6 shows a configuration of an embodiment of the present invention; Figure 7 is an automatic drawing diagram. FIG. In the drawing, 1 is a parameter setting register, 2 is a display screen creation means, 3.30 is a liquid crystal display surface, 4 is a liquid crystal control means, 11 is a size setting register, 12 is a direction setting register 21 is a display screen selection section, 22- 24 is a display screen, 41 is a display control unit, 100 is a CPU and memory, 200 is a scanner, 300
400 is a recognition processing unit, 400 is a dictionary, 500 is a display, and 600 is a host computer interface. Figure 1. Block diagram showing the principle of the present invention. Figure 1. Figure 4. Diagram showing the system configuration of -271 of the present invention.
Funeral map diagram

Claims (1)

[Claims] In an automatic drawing input system that reads a drawing placed face down on an image scanner and recognizes and processes graphic elements, a parameter setting register ( 1), a display screen creation means (2) for creating display screen data of the drawing reading range and drawing direction to be displayed on the liquid crystal display screen (3) according to the parameters set in the parameter setting register (1), and a drawing set. a liquid crystal display surface (3) provided on the screen and displaying the display screen created by the display screen creation means (2);
and a liquid crystal control means (4) which applies voltage to selected electrodes of the liquid crystal display surface (3) according to the display screen data created by the display screen creation means (2) and switches to apply voltage to all electrodes according to a control input. , when setting the drawing, displays the set drawing size and drawing orientation,
A drawing positioning instruction method characterized in that the liquid crystal display surface (3) becomes completely transparent when reading starts.