KR0141533B1 - The turbulance control system of monitor still screen - Google Patents

Abstract

The present invention relates to a disturbance adjustment system of the monitor still screen for minimizing the up and down disturbance by adjusting that the screen is disturbed (TURBULANCE) occurs when adjusting the STILL screen of the monitor. In the adjustment system is provided with a deck 30 is inserted to supply the video signal to the PCB 10 and the monitor 20 for displaying the adjustment data on the PCB (10) on the screen, the peripheral device DI / O control unit ( 40) and the controller 100 for initializing the GPIB controller 50, the A / D converter 60 and the motor controller 80, and controlling the entire system by the control program, and the control signal of the controller 100. GPIB control unit 50 for controlling the power supply unit 51 and the power generated by the power supply unit 51 are switched to a constant power supply (for example, 7.5V) to the PCB 10 and the A / D converter 60. The digital signal is outputted by the switching section 42 to be supplied and the control signal of the controller 100, DI / O control unit 40 for controlling the switch unit 42, the key switch unit 43, and the trigger unit 41, and the key switch unit 43 for switching between the start mode and the stop mode for starting or stopping the deck 30. ), A trigger unit 41 for triggering a signal output from the PCB 10, and an analog signal input from the switching unit 42 and the trigger unit 42 is converted into a digital signal to the controller 100. A / D conversion unit 60 to input and a motor control unit 80 for driving the motor 81 by the control signal of the controller 100 to adjust the adjustment point 11 on the PCB (10) The controller extracts the triggered signal through the A / D converter to find out the correct deviation value and automatically adjusts the adjustment point by driving the motor. It is possible to improve product quality by securing uniformity of .

Description

TURBULANCE control system of monitor still screen

1 is a block diagram showing an example of a conventional manual monitor still image adjustment system.

2 is a block diagram showing a monitor still image disturbance (TURBULANCE) adjustment system according to the present invention.

3 is a flow chart of operation according to FIG.

* Explanation of symbols for the main parts of the drawings

10: PCB 11: Control Point

12: adjusting rod 20: monitor

30: Deck 40: DI / O Control Unit (Digital Input / Output Controller)

41: trigger section 42: signal switching section

43: key switching unit

50: GPIB control unit (General Purpose Interface Bus Controller)

51: power supply unit 60: A / D (Analog / Digitql) conversion unit

70: monitor 80: motor control unit

81: motor 90: upper jig

100: controller

The present invention relates to a disturbance adjustment system of the monitor still screen for minimizing the up and down disturbance state by adjusting that the screen is disturbed (TURBULANCE) state occurs when the monitor (STILL) screen adjustment.

More specifically, it uses controllers and A / D converters to control the entire system to accurately extract the waveform displayed on the monitor screen on the monitor screen to find out the exact deviation and automatically adjust the adjustment point by driving the motor. Therefore, it is to improve the quality of the product by improving the speed of adjustment and securing the uniformity of the product by eliminating the troublesome process of the worker.

Conventionally, as shown in FIG. 1, an image signal (for example, PB-RF) is input from the deck 30 to the PCB 10, which is a measuring board, with a tape inserted in the deck 30. As shown in FIG.

When the image signal is input to the PCB 10, the PCB 10 outputs the image signal and is displayed on the screen of the monitor 20.

At this time, if the operator visually checks the image data displayed on the monitor 20 screen and does not fall within the set standard value, turn the adjusting rod 12 by hand and turn the adjustment point 11 on the PCB 10 to the monitor 20 screen. The moving width of the image data displayed is reduced to the minimum so that it falls within the set standard value (for example, the A range indicated on the monitor of FIG. 1).

However, the process of adjusting the still image appearing on the conventional monitor screen is performed by measuring and adjusting by manual operation depending on the operator's time, so that the quality of the product is not uniform due to lack of adjustment accuracy and measurement and Due to the slow adjustment speed, productivity declined.

In the present invention to solve the above-mentioned defects, by using the controller to control the entire system and the A / D conversion unit outputted on the PCB to accurately extract the waveform appearing on the monitor screen to find the correct deviation value by driving the motor The purpose is to improve the quality of the product by improving the adjustment speed and ensuring the uniformity of the product by eliminating the troublesome process of the worker by automatically adjusting the adjustment point.

This will be described with reference to the accompanying drawings.

In the adjustment system provided with a deck 30 is inserted into the tape to supply the video signal to the PCB 10 and the monitor 20 for displaying the adjustment data on the PCB 10 on the screen,

A controller 100 for initializing the DI / O control unit 40, the GPIB control unit 50, the A / D conversion unit 60, and the motor control unit 80 as peripheral devices and controlling the entire system by a control program; The GPIB control unit 50 for controlling the power supply unit 51 by the control signal of the controller 100, and the power generated by the power supply unit 51 is switched to a predetermined power supply (for example, 7.5V) to the PCB 10 and A. A digital signal is output by the switching unit 42 supplied to the / D conversion unit 60 and the control signal of the controller 100 to control the switching unit 42, the key switching unit 43, and the trigger unit 41. A DI / O control unit 40, a key switching unit 43 for switching between a start mode and a stop mode for starting or stopping the deck 30, and a trigger unit for triggering a signal output from the PCB 10 ( 41), an A / D converter 60 for converting an analog signal input from the switching unit 42 and the trigger unit 42 into a digital signal and inputting it to the controller 100; A motor controller 80 is provided to drive the motor 81 according to the control signal of the controller 100 to adjust the adjustment point 11 on the PCB 10.

Hereinafter, with reference to the accompanying drawings will be described the operation and effect according to the present invention.

FIG. 2 is a block diagram showing the TURBULANCE adjustment system of the monitor still image according to the present invention, and FIG. 3 is an operation flowchart according to FIG.

When the main power is applied, the controller 100 initializes the GPIB controller 50, the DI / O controller 40, the A / D converter 60, and the motor controller 80, which are peripheral devices.

When the initialization is completed, the controller 100 outputs a control signal to the GPIB control unit 50 by the set control program, so that the GPIB control unit 50 turns on the power supply unit 51 to generate DC power to switch. Through 42 is applied to the PCB (10) measuring board.

The DC power is applied to the PCB 10 and the controller 100 outputs a digital signal through the DI / O controller 40 to switch the mode of the key switch 43 to the start mode so that the tape is inserted into the deck ( 30) is activated to input the video signal to the PCB (10).

When the video signal supplied to the PCB 10 from the deck 30 is delayed for a predetermined time (for example, 3 seconds) and is displayed on the monitor 70 screen, the controller 100 again uses the digital signal through the DI / O controller 40. By outputting the switch mode of the key switching section 43 to the STILL mode to stop the video signal of the PCB 10 appearing on the monitor 70 screen.

Accordingly, the signal output from the PCB 10 TP point is input to the channel CH1 of the A / D converter 60 as an analog signal via the switch 42, while the signal from the output terminal of the PCB 10 is triggered. Through 41, a trigger signal that can be detected in a horizontal line is generated and input as an analog signal to the channel CH2 of the A / D converter 60.

The A / D converter 60 converts data of an analog signal input to channels CH1 and CH2 into data of a digital signal and inputs the data to the controller 100.

The controller 100 extracts the definition value from the nth line to the n + 20th line of the digital signal input from the A / D converter 60 and stores the extracted address value in the internal memory.

data [n] ... · data [n + 20]

The reason why the controller 100 extracts the input data from the nth line to the n + 20th line and stores the defined value in the internal memory is because it is set in the initial program.

Therefore, the controller 100 determines whether the value set in the extracted address value data is 200 or more times. If the set value is not 200 or more times, the controller 100 executes the signal from the output of the PCB 10 in the horizontal line again. The trigger unit 41 generates a trigger signal to be detected, and inputs the trigger signal as an analog signal to the channel CH2 of the A / D converter 60.

The A / D converter 60 converts data of an analog signal input to channels CH1 and CH2 into data of a digital signal and inputs the data to the controller 100.

The controller 100 extracts the definition value of the digital signal input from the A / D converter 60 from the nth line to the n + 20th line and stores the extracted address value in the internal memory.

data [n] ... · data [n + 20]

Therefore, the controller 100 compares the determination of whether the value set in the extracted address value data is 200 or more times, and searches for the black point where 200 or more appears first when the value is set 200 times or more, and the array number and the last 200 are determined. The black point where the abnormality is found is found, and the array number is obtained to detect the difference value and the center value of the horizontal line.

When the controller 100 detects the first black point and the last black point and detects the difference value and the center value for the horizontal line, does the detected value match the difference value for the first black point and the last black point and the set standard value? If it is not determined by comparison, the detected measurement center value is compared with the standard value within the standard value. If the measurement center value is smaller than the standard value, a control signal is output to the motor control nothing 80 to turn the motor 81 clockwise (CW). Trigger by turning the adjustment point 11 on the PCB 10 in the clockwise direction to perform the adjustment again from the above-described triggering process so that the signal at the output terminal of the PCB 10 can be detected in the horizontal line. Is generated and input to the channel CH2 of the A / D converter 60 as an analog signal.

The A / D converter 60 converts data of an analog signal input to channels CH1 and CH2 into data of a digital signal and inputs the data to the controller 100.

The controller 100 extracts the definition value from the nth line to the n + 20th line of the digital signal input from the A / D converter 60 and stores the extracted address value in the internal memory.

data [n] ... · data [n + 20]

Therefore, when the controller 100 compares 200 or more times the value set in the extracted address value data, the controller 100 searches for a black point where 200 or more appears first, and the sequence number and the last Search for the black spot where 200 or more appears and find the array number to detect the difference and the center of the horizontal line.

When the controller 100 detects the first black point and the last black point and detects the difference value and the center value for the horizontal line, it is determined whether the difference between the detected first black point and the last black point is equal to the set standard value. If the comparison is judged and matched, the operation ends.

Also, when the measured center value is greater than or equal to the standard value, the control signal is output to the motor controller 80 to drive the motor 81 in the counterclockwise direction (CCW). By turning the adjustment point 11 on the PCB 10 counterclockwise to perform the above-described triggering process again so that the trigger part 41 can detect the signal at the output end of the PCB 10 in the horizontal line. The trigger signal is generated and input to the channel CH2 of the A / D converter 60 as an analog signal.

The A / D converter 60 converts data of an analog signal input to channels CH1 and CH2 into data of a digital signal and inputs the data to the controller 100.

The controller 100 extracts the definition value from the nth line to the n + 20th line of the digital signal input from the A / D converter 60 and stores the extracted address value in the internal memory.

data [n] ... · data [n + 20]

Therefore, the controller 100 compares the determined value from the extracted address value data to 200 times or more, and if the value is 200 times or more, the controller 100 searches for a black point at which 200 or more appears first, and the sequence number and the last 200 points. The black point where the abnormality is found is found, and the array number is obtained to detect the difference value and the center value of the horizontal line.

When the controller 100 detects the first black point and the last black point and detects the difference value and the center value for the horizontal line, does the detected value match the difference value for the first black point and the last black point and the set standard value? Compare and end the operation if it matches.

As described above, the present invention extracts the signal triggered by the controller A / D conversion unit from the waveform displayed on the monitor screen to find out the correct deviation value and automatically adjusts the adjustment point by driving the motor, thereby eliminating the troublesome process of the operator. The quality of the product can be improved by improving the speed of adjustment and securing the uniformity of the product

Claims (1)

In the adjustment system provided with a deck 30 is inserted into the tape to supply the video signal to the PCB 10 and the monitor 20 for displaying the adjustment data on the PCB 10 on the screen, DI / O as a peripheral device A controller 100 for initializing the control unit 40, the GPIB control unit 50, the A / D conversion unit 60, and the motor control unit 80 and controlling the entire system by a control program; and the control of the controller 100. GPIB control unit 50 for controlling the power supply unit 51 by the signal, and switching unit for supplying to the PCB 10 and the A / D conversion unit 60 by switching the power generated from the power supply unit 51 to a constant power supply (42), a DI / O control unit (40) for controlling the switching unit (42), the key switching unit (43), and the triggering unit (41) by outputting a digital signal according to the control signal of the controller (100), and the deck ( A key switch 43 for switching between a start mode and a stop mode for starting or stopping 30 and a signal output from the PCB 10 A / D converter 60 for converting an analog signal inputted from the trigger unit 41, the switching unit 42 and the trigger unit 42 into a digital signal and inputting it to the controller 100, and the controller ( And a motor control unit (80) for controlling the adjustment point (11) of the PCB (10) or more by driving the motor (81) in response to the control signal of the control panel (100).