JPS6020288A - Automatic coordinate read method of plural drawings - Google Patents

Abstract

PURPOSE:To shorten the coordinate read time and perform the unattended operation by storing the respective parameters of the plural pictures to the memory and calling out these parameters when the respective drawings are scanned. CONSTITUTION:The respective parameters such as the original point of the plural pictures, original point off-set, angle correction, scanning area, etc., are stored to the memory 26 beforehand. The scanning data from the scanning camera 6 are supplied to the shape recognition logic 20 and here, the X and Y data with the hole mark are operated. The X and Y data is supplied through the angle correction means 22 and off-set correction means 24 to the AND gate 36 and is filed in the data base 38. The correction in the angle correction means 22 and off-set correction means 24 is executed by the output from the memory 26, or the transfer of the table 4 is controlled by the output from the memory 26, and the scanning range is set by the scanning camera 6.

Description

Detailed Description of the Invention The present invention positions a plurality of drawings on a table, moves a scanning camera in a predetermined direction relative to the table, and locates the center points of hole marks on the plurality of drawings. This relates to a method of reading XY coordinate values.

Conventionally, the x-
When automatically reading the y-coordinate value, first, one drawing 2 is positioned on the table 4, and the parameter ON switch is turned on. Next, the head 10 of the automatic coordinate reader 9 on which the scanning camera 6 and ITV camera 8 are mounted is manually controlled in the xy coordinate axes direction, and one point Pa on the table is
(See Figure 4), press the data set switch on the console at that position, and store the data in the parameter memory of the calculator.
Enter the origin PO. Next, move the head 10 to set the Pl point of the image shown in Drawing 2 on the monitor TV 12 (fourth point).
(see figure) shown on the monitor TV 12 @
Match 14. Next, when the data set switch on the console is turned on, the Pl is stored in the parameter storage memory of the computer.
x-v J11! Data is input. In this way, P2. Input the X-Y coordinate data of P3 into the parameter storage memory of the computer. Calculator is pl
, P2, the scan range, that is, the scan area designation parameters are set. Furthermore, the calculator is P
2. Based on the X-Y coordinate data of P3, angle correction parameters for the reference angle of the drawing are set.

Next, when the automatic coordinate reader 9 is switched to the automatic coordinate reading mode, the computer automatically controls the movement of the head 10 in the arrow direction based on the origin parameter and the scan area designation parameter. By this movement of the head 10, the scanning camera 6 scans the drawing 2 in the arrow direction and inputs the scan data to the computer. Based on the scan data from the scanning camera 6, the origin parameter, the angle correction parameter, and the shape recognition program, the computer calculates the X-
Y coordinate data is calculated and stored in the database. When the automatic reading of the pattern of the drawing is completed, the next drawing is set on the table 4, and then the above-described parameter input operation is performed.

In this way, when automatically reading patterns from multiple drawings, parameters must be set for each drawing, making it impossible to automatically read multiple drawings continuously. Ta. Therefore, when a plurality of drawings are to be read by an automatic coordinate reader, there is a drawback in that an operator must be present at the automatic coordinate reader at all times.

An object of the present invention is to provide a method for automatically reading the coordinates of multiple drawings in which the above-mentioned defects are eliminated.

The groove bottom of the present invention will be explained in detail below with reference to the accompanying drawings.

In FIG. 1, reference numeral 4 denotes a table for automatic coordinate reading 19, and the table 4 and head 10 are configured to be positionally controlled by pulse outputs from a numerical control device 16 (see FIG. 5). The head 10 is equipped with a scanning camera and an ITV camera 8, as shown in FIG. The scanning camera 6 includes a light detection unit 6 in which a large number of minute detection elements are arranged in a straight line.
It is equipped with a. 18 is an absolute counter, which counts the output pulses of the numerical control device 16 from the origin. 20 is a shape recognition logic, 22 is an angle correction means, 24 is an origin offset correction means, 26
28 is an angle logic, 30 is an origin offset logic, 32 is an origin detection logic, 34 is a scan area logic, 36 is an AND gate circuit, 38 is a database, and 40 is a memory for storing coordinate values of information parameters for each drawing. The scan control logic 42 is a parameter control logic, and each of the above logics is controlled by the internal circuit and program of the computer. 44 is a manual movement control switch, 46 is a parameter ON switch, 48
．． is the data set switch, 50 is the scan ON, OF
This is the F switch. The above devices and each logic are connected as shown.

Next, the operation of this embodiment will be explained.

First, a plurality of drawings 2.2a and 2b, such as print original film, on which hole marks to be read are drawn are set on the table 4.

Next, the parameter ON switch 46 is turned on to turn it on. By turning on the switch 46, the parameter control logic 42 is activated. Next, the manual movement control switch 44 is manually controlled to move the ITV camera 8 to N.

1 Move to point Po in drawing 2, align the point with the center point of the crosshair indicator 14 on the monitor television 12, and press the data set switch 48. The output of the absolute counter 18 will be the data save signal of the parameter control logic 42. Not, which is saved as the XY coordinate value of the origin parameter in Drawing 2. Next, No. 1 drawing 21 points and 2
When the two points are aligned with the center of the crosshair index 14 on the monitor television 12 and the data set switch 48 is pressed at each position, the XY coordinate outputs of the absolute counter 18 for the 21st and 22nd points are stored in the memory 26 as NO, NO, 1 drawing 2
The scan area designation parameters are each saved as the XY coordinate values.

Next, when the 23 points of drawing 2 are aligned with the center of the crosshair index 14 and the data set switch 48 is pressed, the xy coordinate data of the 23 points are set to No. 1 Drawing 2 along with the XY coordinate values of the 22 points. The angle correction parameters are saved in the memory 26 as XY coordinate data. Next, move the TV camera 8 to 24 points on the table 4, and move the crosshair finger 4 on the monitor TV! Il! 14, and press the data set switch 48. In this way, sequentially,
P4. P5゜PO, P7. PO, PO, PO, PI
The XY coordinate values of each point of O and pH are input into the memory 26. The memory 26 is activated by the data save signal of the parameter control logic 42 to store the P4. P5. P.O.

P7. PO, PO, PIO, pH in order in Figure 2a,
2b as the origin parameter, scan area specification harammeter, and angle correction parameter. Next, the scan on/off switch 50 is pressed to switch the automatic coordinate reader 9 to automatic coordinate reading mode. When the switch 50 is turned on, a parameter data call signal is supplied from the scan control logic 40 to the memory 26, and the Po value is input to the origin detection logic 32 and the origin offset logic 30. In addition, the PI and P2 values are determined by the scan area logic 34.
is input. Also, P2. The P3 value is input to angle logic 28. The origin detection logic 32 sends the Po value to the scan control logic 40 as the origin parameter. The scan area logic 34 also sends scan area parameters, namely scan ranges A and B, to the scan control logic 40. The scan control logic 40 is
The relative current position of the scan camera 6 with respect to the table 4 is detected based on the output value of the absolute counter 18, and based on this current position and the Po value, the numerical control device 1
6 specifies the amount of relative movement between the scanning camera 6 and the table 4. The numerical control device 16 has a scan control logic 4
A signal of 0 moves the scanning camera 6 to point Po.

Next, the scanning camera 6 is moved to 21 points, and then the scanning camera 6 is moved within the scanning ranges A and B along a predetermined scanning direction. On the other hand, the angle logic 28 supplies an angle correction signal to the angle correction means 22. The angle correction means 22 calculates the angle of the drawing 2 with respect to the X coordinate axis of the computer, and converts the XY coordinate data of the center point of the hole mark calculated by the shape recognition logic 20 into the XY coordinate data when the drawing 2 is set at the correct angle. Convert to Further, the origin offset logic 24 supplies an origin offset signal to the offset correction means 24 based on the Po value. The offset correction means 24, based on the offset signal,
The scanning data of the scanning camera 6 is converted into xy data with Po as the origin (0, O).

The scanning data of the scanning camera 6 is supplied to the shape recognition logic 20, where the XY coordinate values of the center point of the hole mark in FIG. 2 are calculated and output. XY of the center point of this hole mark
The data is fed to angle correction means 22, where:
As mentioned above, it is converted into XY data when the angle in Drawing 2 is set to the correct angle, and then.

The angle correction XY data is transmitted to the origin offset correction means 2.
4, where X with PO as the origin (0, O)
Converted to Y data.

The signal is supplied to the AND gate 36. At this time, gate 36
a is set to a conductive state by the output of the scan control logic 40, and the XY data of the center point of the hole mark in Drawing 2 is corrected for the angle and the origin offset as described above, and then passes through the art gate 36a to No. 1. database 38a. When the automatic scanning of Drawing 2 of No. 001 is completed, the scan control logic 40
The parameter data call signal of FIG. 2a is stored in the memory 26.
supply to. The memory 26 outputs the parameter coordinate value P4 of No. 2 drawing 2a, and inputs this to the origin offset logic 30 and the origin detection logic 32. The memory 26 also stores parameter coordinate values P5. P6 is output and inputted to the scan area logic 34. The memory 26 also stores parameter coordinate values P6. P7 is input to the angle logic 28. Next, the scan control logic 40
Based on the output signals of the origin detection logic 32 and the scan area logic 34, the amount of movement of the scanning camera 6 and the table 4 is set. The numerical control device 16 controls the movement of the table 4 and the scanning camera 6 based on the above movement amount, and after moving the scanning camera 6 to the 24th point, moves the scanning camera 6 to the scanning start point P7, and then, The scanning camera 6 is moved within the scanning range along a predetermined scanning direction. The scan data is fed to shape recognition logic 20, which calculates the respective XY coordinate values of the center point of the hole mark in drawing 2a. This XY data of the hole mark center point is angle corrected by the angle correction means 22, and then the angle corrected XY data is changed to the origin (24 points) by the origin offset correction means 24.
0, O) into xy data. At this time, since the AND gate 36b is in a conductive state, the output xy data of the offset correction means 24 is stored in the database 3 of N002.
8b. The coordinates of the center point of the hole mark in drawing 2b of No. 003 are automatically read in the same manner as described above, and the angle and origin offset are corrected.
.

3 is filed in the database 38C.

As described above, the present invention stores parameters such as the origin, origin offset, angle correction, scan area, etc. of multiple drawings in advance in the computer memory, and automatically recalls these parameters when scanning each drawing. Since the coordinates of multiple drawings are automatically read, the time required to read the coordinates is shortened, and there is no need for the operator to monitor the automatic coordinate reader during automatic coordinate reading, allowing unattended operation. There are effects that can be achieved.

[Brief explanation of drawings]

FIG. 1 is an external view of the automatic coordinate reader, FIG. 2 is an explanatory diagram of the reading head, FIG. 3 is a front view of the monitor television, FIG. 4 is an explanatory diagram, and FIG. 5 is a block circuit diagram. 4...Table, 6...Scanning camera, 8...
・ITV camera, 12...Monitor TV, 14...
... Index, 16 ... Numerical control device, 18 ... Absolute counter, 20 ... Shape recognition logic, 22 ... Angle correction means, 24 ... 1. Correction means at the origin off-sera, 26...Memory, 28°゛・°
Angle logic. 30...Origin offset logic, 32...Origin detection logic, 34...Scan area logic. 36...AND gate circuit, 38...Database, 40...Scan control logic, 42...
・Parameter control logic, 44...Manual movement control switch, 46...Parameter ON switch, 48
...Data switch, 50...Scan ON,
OFF Switch Patent Applicant Ayao Nishijima Patent Attorney Muto Kogyo Co., Ltd. Figure 1 Figure 4 Figure 2 Figure 4

Claims (1)

[Scope of Claims] 1. Position a plurality of drawings on a table, scan the drawings in a predetermined direction with a scanning camera, process the scanning data with a computer, and calculate the number of drawings based on the scanning data. In the method of filing XY coordinate data of a predetermined pattern in a database, the origin PI of each drawing is determined in advance. P4. P8, scanning range indication point PL, P2. P5゜P6. , P9. PIO and angle correction point P3. P7.
When inputting each XY coordinate value of Pll into the memory of a computer and automatically scanning multiple drawings with a sequential scanning camera, first call each of the XY coordinate values corresponding to the scanned drawing, and then input the called XY coordinate value. Set the origin, scanning range, angle correction, and origin offset correction parameters based on
The origin and scanning range of the scanning camera are set for each scanning drawing based on each of the parameters, and the output data of the scanning camera is subjected to angle correction and origin offset correction. Coordinate automatic reading method.