JPS62175877A - Drawing reading device - Google Patents

Abstract

PURPOSE:To feed a large number of drawings at a time by using an image scanner to perform input of drawings that is usually carried out by an operator every sheet of drawings. CONSTITUTION:Plural sheets of drawings 1 containing the drawing identifying names 1a are set on a stacker, etc., of an automatic drawing feed device 2. Then only the input of the first drawing 1 is read to an image scanner 4 via the device 2 with operation of an operator. Thus the contents of the drawing 1 undergo a line thinning operation, etc., through a raster information editing circuit 6 and the data on the result of said thinning operation is stored in an edited raster information memory 7. In this case, the line thinning operation is also applied to the name 1a of the drawing 1 and the result of this operation is stored in the memory 7. A drawing identifying name recognizing circuit 8 detects the position of the name 1a based on the data stored in the memory 7 and then recognizes the characters existing at the position of the name 1a to convert them into character codes prescribed by JIS. These character codes are stored in a vector information memory 10 via a drawing name supply circuit 13.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention is a method of converting various drawings into raster information or vector (
The present invention relates to a drawing reading device that converts digital information such as vector (vector) information and inputs it into a computer online or offline. Note that this invention can be commonly implemented in both a device that transfers an input drawing as raster information to a computer as it is, and a device that converts an input drawing from raster information to vector information and transfers it to a computer. In this article, we will focus on the latter device.

[Conventional technology]

FIG. 3 is a block diagram showing a conventional example of such a drawing reading device. In the figure, l is a drawing, 4 is an image scanner such as a video camera, 5, 7, 10 are memories, 6 is a raster information editing circuit, 9 is an 18B recognition circuit, 11 is a magnetic disk device, 12 is a magnetic tape device, 1: lj drawing identification name assigning circuit, 14 a display, and 15 an input device.

The drawing 1 is read through the image scanner 4 and is temporarily stored in the original raster information memory 5 in the form of an image. Next, the raster information editing circuit 6 performs noise removal etc. on the raster information on the original raster information memory 5.
In addition, each point constituting a line segment is processed into a series of points (a series of pixels) by line thinning or run length processing (segmentation), and this is stored in the edited raster information memory 7. Output to. On the raster information memory 5 or 7, a sequence of points forming a line segment or the like is stored as 61'', and a sequence of points on the ground of the background is stored as 10'', respectively. The line recognition circuit 9 performs line recognition processing on the point sequence @1'' on the edited raster information memory 7, converts it into vector information that is a set of starting points and ending points of each straight line, and stores it in the vector information memory 10. The vector information on the vector information memory 10 is further stored in a magnetic disk device 11 or a magnetic tape device 12.The magnetic disk device 11 or magnetic tape device 12 stores vector information for a plurality of drawings. Therefore, when handling a specific drawing from the magnetic disk device 11 or magnetic tape device 12, the drawing identification name such as the drawing number and the drawing author is used.

This drawing identification name is given from the display console 14 attached to the drawing reading device or the numeric keypad of the input device 15 when reading the drawing, and is stored corresponding to the drawing via the drawing identification name assigning circuit 13.

If the above process is described from the perspective of an operator who actually operates it, it will be as follows.

For each drawing, ■ Input drawing 1 into image scanner 4.

■ While checking the input drawing, input the corresponding drawing identification name using the display console 14 or the numeric keypad.

Perform the following operations.

[Problem that the invention seeks to solve]

Therefore, especially when inputting a large number of diagrams Wjt at once,
As a result of the above operations being performed many times for each drawing, a) the operator's operation time increases the total input time;

(Example) Due to a misunderstanding of the drawing or a mistake in key operation during input, the drawing identification name may be entered incorrectly, resulting in a mismatch with the contents of the drawing.

Problems such as this arise. Therefore, the present invention requires almost no operator intervention when inputting a drawing identification name, and as a result, the total input time is shortened, and the drawing identification name is not erroneously input by humans, making it suitable for reading large-scale drawings. The purpose is to provide a drawing reading device.

[Means for solving problems]

An automatic drawing paper feeder, a paper feeder drive circuit that instructs this device on the timing of paper feeding to the image scanner, and a drawing identification name recognition circuit that detects and recognizes the position of the drawing identification name existing on the drawing. is added to the conventional drawing reading device.

[Effect]

In other words, it eliminates the need for the operator to input each drawing into an image scanner and input the drawing identification name from a display console, etc., which was previously performed by an operator for each drawing. This allows you to input the following information at once.

[Embodiments of the invention]

FIG. 1 shows an actual example of this invention. 2. The present invention is characterized by the addition of a paper feeder drive circuit 3 that drives this device 2, and a drawing identification name recognition circuit 8 that detects and recognizes the position of the drawing identification name existing on the drawing 1.

In such a configuration, a plurality of drawings l having drawing identification names 1a as shown in FIG.
The drawings are placed in a stacker or the like, and only the first drawing is inputted by the operator to be read into the image scanner 4 via the automatic drawing sheet feeder 2. The contents of the drawing 1 are subjected to processing such as line thinning by the raster information editing circuit 6, and the resulting data is stored in the edited raster information memory 7. In this case, the drawing identification name on drawing 1 (1a
) is also subjected to processing such as line thinning, and the results are stored in the edited raster information memory 7. The drawing identification name recognition circuit 8 detects the position of the drawing identification name from the data on the edited raster information memory 7, further recognizes the character existing at that position, and converts it into a character code specified by JIS etc. , is stored in the vector information memory 10 as a drawing identification name via the drawing identification name assigning circuit 13. Further, after the drawing identification name recognition circuit 8 processes the drawing identification name, the line recognition circuit 9 performs i recognition processing, and the vector information is stored in the vector information storage memory 10.

At this point, the drawing identification name and drawing information are associated. On the other hand, the line recognition circuit 9 notifies the paper feeder drive circuit 3 of a completion signal when the generation of vector information for one drawing is completed. The paper feeder drive circuit 3 receives the completion signal and drives the automatic drawing paper feeder 2 to automatically read the drawing 1 into the image scanner 4. Thereafter, the same process as that for the first drawing is repeated.

〔Effect of the invention〕

According to the present invention, for a conventional drawing reading device, there is provided an automatic drawing sheet feeding device, a sheet feeding device driving circuit that instructs this device to feed timing to an image scanner, and a drawing identification name existing on a drawing. A drawing identification name recognition circuit has been added to automatically feed the drawing to the image scanner and input the drawing identification name, thereby eliminating the need for the operator to handle each drawing individually. This makes it possible to save labor, which also has the advantage of preventing misreading of drawing identification names and erroneous human effort.

[Brief explanation of drawings]

FIG. 11 is a block diagram showing an embodiment of the present invention, FIG. 2 is an explanatory diagram showing the format of a drawing, and FIG. 3 is a block diagram showing a conventional example of a drawing reading device. Code explanation 1...Drawing, 1a...Drawing identification name, 2
... Automatic drawing paper feeder, 3... Paper feeder drive circuit, 4... Image scanner, 5...
Song original raster information memory, 6... Rask information editing circuit, 7... Edited screen information memory, 8...
・Drawing identification name 8 recognition circuit, 9... line recognition circuit, 10... vector information memory, 11...
・Magnetic disk device, 12・Song・Magnetic tape device, 13
... Drawing identification name assigning circuit, 14 ... Display, 15 ... Input device.

Claims (1)

[Scope of Claims] Imaging means for capturing an image of a drawing consisting of a plurality of line segments; line segment extraction means for extracting at least each line segment from the image signal as a series of binary pixel information; and vector information for each line segment. A drawing reading device comprising vector information extraction means for extracting vector information, a feeding means for feeding the drawing to the imaging means, and controlling the feeding means to instruct the drawing feeding timing. A drawing reading device comprising: a feeding control means for identifying each drawing; and an identification means for identifying an identification name unique to each drawing.