KR0177220B1 - Automatic adjustment device for specific level of waveform inspection regulator - Google Patents

Abstract

Specific level of waveform inspection regulator (LEVEL) to improve reliability of clam check controller by calculating by reference to average voltage without noise among digital value of control point under computer control and automatically adjusting by motor drive A voltage automatic adjustment device, comprising a power supply unit 20 for applying a direct current power to the to-be-retained body 10 through a hajig 41, a signal generator 30 for supplying a pattern signal and the object to be measured 10. In the conventional waveform inspection regulator voltage adjusting device provided with an oscilloscope 13 for displaying the adjustment point 11 data on the screen, the data input to be set by the keyboard 120 is accepted, The power supply unit 20 and the signal generating unit 30 are controlled by the computer 100 which initializes the device, calculates the input data, and outputs the data to the monitor 110, and the control command of the computer 100. A DI / O controller 80 for outputting a digital signal by a GPIB controller 90, a computer 100 control command, and controlling the signal cutting screw 60 and the input gain controller 61, and the DI / O A signal switching unit 60 for switching the output signal of the adjustment point 11 of the measurement target object 10 extracted through the hag 41 by the control of the control unit 80, and switching in the signal switching unit 60; An input gain control unit 61 for controlling the gain of the received signal and outputting an analog signal, and converting the analog signal inputted from the signal generator 30 and the input gain control unit 61 into a digital signal to the computer 100; A motor that is attached to the singling jig 40 by an input A / D conversion unit 62 and a control command of the computer 100, and rotates to adjust the adjustment point 11 of the target object 10 ( A motor control unit 70 for driving 71 is provided.

Description

LEVEL voltage automatic adjustment device of waveform inspection regulator

1 is a block diagram showing a manual voltage adjusting device applied to a conventional waveform inspection regulator.

2 is a block diagram showing a device for automatically adjusting a specific level of the waveform inspection regulator according to the present invention.

3 is a flow chart of operation according to FIG.

* Explanation of symbols for main parts of the drawings

10: measuring object (PCB) 11: adjustment point

12: adjustment rod 13: oscilloscope

20: power supply unit 30: signal generating unit

40: Sangjig 41: Hajig

50: dummy 60: signal switching unit

61: input gain control unit 62: A / D (Analog / Digital) conversion unit

70: motor control unit 71: motor

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

100: computer 110: monitor

120: keyboard

The present invention relates to an adjuster for inspecting a waveform of a subject under test, and in particular, calculates a reference based on an average voltage from which a noise value is removed from a digital value of a subject under control by computer control and automatically adjusts the motor by driving. The present invention relates to a specific level automatic voltage regulating device of a waveform inspection regulator for improving the reliability of the waveform inspection regulator.

More specifically, the above-described automatic adjustment removes noise of a specific level to maintain the measurement accuracy of the waveform inspection regulator and improve the adjustment speed to improve the reliability of the waveform inspection regulator.

Conventionally, in order to inspect and adjust the waveform of the adjustment point 11 to be adjusted of the target object 10 as shown in FIG. 1, DC power is applied from the power supply unit 20 to the target object 10 and a signal generator is provided. Although the operator visually checks the waveform appearing on the screen of the oscilloscope 13 in the state where the desired pattern signal is supplied at 30, by turning the adjusting rod 12 of the measurement target object 10 by manual operation, the waveform In the inspection adjustment, the operator checks the waveform value appearing on the screen of the oscilloscope 13 visually and manually adjusts the adjustment point 11 of the target object 10 manually to adjust the desired waveform value. The speed was slowed down and manual adjustments were made, resulting in a lack of uniformity of the product.

Accordingly, the present invention is to provide an apparatus that can solve all the problems occurring in the conventional waveform inspection regulator voltage adjusting device as described above.

The present invention calculates based on the average voltage from which the noise value is removed from the digital value of the control target under computer control, and automatically adjusts it by driving the motor to remove noise of a specific level to maintain the measurement accuracy and to adjust the adjustment speed. The purpose is to improve the reliability of the waveform inspection regulator.

The above and other objects of the present invention are the power supply unit 20 for applying a DC power to the object 10 through the hajig 41, the signal generator 30 for supplying a pattern signal and the object to be measured 10 The control point (11) of the control point (11) data on the screen and the keyboard (12) operation to accept the data input that you want to set, and initialize the peripheral device according to the control program and calculate the input data to monitor ( The computer 100 outputting to the 110, the GPIB control unit 90 for controlling the power supply unit 20 and the signal generator 30 by the control command of the computer 100, and the control command by the computer 100 The DI / O controller 80 controls the signal switching unit 60 and the input gain controller 61 by outputting a digital signal, and is extracted through the Hajig 41 by the DI / O controller 80. To the signal switching unit 60 for switching the output signal of the adjustment point 11 of the measurement target object 10 and the signal switching unit 60. An input gain controller 61 for controlling the gain of the switched signal and outputting an analog signal, and converting a digital signal from the analog signal input from the signal generator 30 and the input gain controller 61 to convert the digital signal into a computer 100. A / D conversion unit 62 input to the motor, the motor 71 is attached to the upper jig 40 by the control command of the computer 100 and rotated to adjust the adjustment point 11 of the object under test 10 ), The computer 100 sorts the digital signals inputted to the A / D converter 62 in order of magnitude, and sets up and down values set in the sorted data array. Remove the noise value by 10%, average the remaining 80% of the data, calculate the average level value, convert the average level value to the voltage value of 8-bit data, and check whether the measured value converted into voltage value is within the set standard value. Stored in its own memory and measured If the value is within the standard value, the value is displayed on the monitor 100 to complete the adjustment operation. If the measured value does not fall within the standard value, the data is extracted from the A / D converter 62 again, and the current value and the previous value are extracted. When the current extraction value compared to is larger than the previous value and smaller than the setting standard value or smaller than the previous setting value and larger than the setting standard value, it is displayed on the monitor 110 and the motor 71 is rotated in the forward direction. When the extracted value is smaller than the previous value and smaller than the preset specification value or smaller than the previous specification value, the display value is displayed on the monitor 110, and the rotating of the mutter 71 in the reverse direction is repeated. This is achieved by a specific level (LEVEL) voltage automatic device of a waveform inspection regulator.

The above and other objects, features and effects of the present invention will be more clearly understood by the embodiments described based on the accompanying drawings.

FIG. 2 is a block diagram showing a specific level voltage automatic adjustment device of the waveform inspection regulator according to the present invention, and FIG. 3 is an operation flowchart according to FIG.

The computer 100 initializes the GPIB controller 90, the DI / O controller 80, the A / D converter 62, and the motor controller 70, which are peripheral devices, by the input program set through the keyboard 120. .

When the peripheral device initialization is completed, the computer 100 issues a control command to the GPIB control unit 90 to output a DC power (eg, 7.5 V) applied from the power supply unit 20 and a signal generated from the signal generator 30 (eg, : Color bar signal) is supplied to the target object 10 via the lower leg 41.

When the DC power and the pattern signal are supplied to the object to be measured 10, a signal (for example, DC power) is extracted via the Hajig 41 at the test point TP.

The signal extracted via the Hajig 41 is converted into a desired signal in the signal switching unit 60 and adjusted to the required signal size through the input gain control unit 61 to output an analog signal to output the A / D conversion unit. It is input to 62.

Here, the signal switching unit 60 and the history gain control unit 61 are controlled by the DI / O control unit 80 according to the control command set in the computer 100.

Therefore, the analog signal inputted to the A / D converter 62 is converted into a digital signal and input to the computer 100.

At this time, since the de-dark signal input to the computer 100 by the A / D converter 62 contains noise, the computer 100 goes through the following process by the control program set to remove the noise.

Sort by the magnitude of the input digital signal.

· Removes set top and bottom noise by 10% in sorted data array.

The average level value is calculated by averaging the remaining 80% of the data from which the upper and lower noise set in the sorted data array is removed by 10%.

The computer 100 converts the calculated average level value into a voltage value of 8-bit data.

Volt = value of level × (Input Gain Control Voltage / 256)

The computer 100 checks whether the measured value converted into the voltage value is within the installed standard value and stores the checked value in its own memory.

When the measured value converted into a voltage value is within the set standard value, the computer 100 displays the value on the monitor 110 and completes the adjustment operation.

If the measured value converted into a voltage value does not fall within the set standard value, the computer 100 extracts data and displays the value on the monitor 110 when the currently extracted value is larger than the previous value and smaller than the set standard value. After the control command is given to the motor controller 70, the motor 71 attached to the upper jig 40 is rotated in the forward direction, and then the A / D conversion process is performed again.

Therefore, the analog signal input from the input gain control unit 61 to the A / D conversion unit 62 is converted into a digital signal and input to the computer 100.

At this time, since the digital signal input from the A / D converter 62 to the computer 100 contains noise, the computer 100 goes through the following process by the control program set to remove the noise.

Sort by the magnitude of the input digital signal.

Removes 10% of the phase and noise set in the aligned data array.

The average level is calculated by averaging the remaining 80% of the data removed by 10% of the top and bottom noises set in the sorted data array.

The computer 100 converts the calculated average level value into a voltage value of 8-bit data.

Volt = value of level × (Input Gain Control Voltage / 256)

The computer 100 checks whether the measured value converted into the voltage value is within the set standard value and stores the checked value in its own memory.

The computer 100 displays the value on the monitor 110 when the measured value converted into the voltage value is within the set standard value, and then completes the adjustment.

In addition, the computer 100 displays the value on the monitor 110 when the current extracted value is smaller than the previous value and is larger than the set standard value, and then gives a control command to the motor control unit 70 to the upper jig 40. After the attached motor 710 is rotated in the forward direction, the A / D change process is performed again.

Accordingly, the analog signal input from the input gain control unit 610 to the A / D converter 62 is converted into a digital signal and input to the computer 100.

At this time, since the digital signal input from the A / D converter 62 to the computer 100 contains noise, the computer 100 goes through the following process by the control program set to remove the noise.

Sort by the magnitude of the input digital signal.

Removes 10% of the phase and noise set in the aligned data array.

The average level is calculated by averaging the remaining 80% of the data removed by 10% of the top and bottom noises set in the sorted data array.

The computer 100 converts the calculated average level value into a voltage value of 8-bit data.

Volt = value of level × (Input Gain Control Voltage / 256)

The computer 100 checks whether the measured value converted into the voltage value is within the set standard value and stores the checked value in its own memory.

The computer 100 displays the value on the monitor 110 when the measured value converted into the voltage value is within the set standard value, and then completes the adjustment.

In addition, the computer 100 displays the value on the monitor 110 when the currently extracted value is smaller than the previous value and is smaller than the previous value, and then gives a control command to the motor controller 70 to attach it to the upper region 40. The motor 71 is rotated in the reverse direction and then re-started from the A / D conversion process.

Therefore, the analog signal input from the input gain control unit 61 to the A / D converter 62 is converted into a digital signal and input to the computer 100.

In this case, since the digital signal input from the A / D converter 62 is said to contain noise, the computer 100 goes through the following process by the control program set up to remove it.

Sort by the magnitude of the input digital signal.

· Removes set top and bottom noise by 10% in sorted data array.

The average level is calculated by averaging the remaining 80% of the data removed by 10% of the top and bottom noises set in the sorted data array.

The computer 100 converts the calculated average level value into a voltage value of 8-bit data.

Volt = level value × (Input Gain Control Voltage / 256)

The computer 100 checks whether the measured value converted into the voltage value is within the set standard value and stores the checked value in its own memory.

The computer 100 displays the value on the monitor 110 when the measured value converted into the voltage value is within the set standard value, and then completes the adjustment.

In addition, the computer 100 displays the value on the monitor 120 when the current extracted value is larger than the previous value and larger than the set standard value, and then gives a control command to the motor controller 70 to attach the upper jig 40 to the upper jig 40. The motor 71 is rotated in the reverse direction and then re-started from the A / D conversion process.

Therefore, the analog signal input from the input gain control unit 61 to the A / D converter 62 is converted into a digital signal and input to the computer 100.

In this case, since the digital signal input by the computer 100 from the A / D converter 62 contains noise, the computer 100 undergoes the following process by a control program set to remove the digital signal.

Sort by the magnitude of the input digital signal.

· Removes set top and bottom noise by 10% in sorted data array.

The average level is calculated by averaging the remaining 80% of the data removed by 10% of the top and bottom noises set in the sorted data array.

The computer 100 converts the calculated average level value into a voltage value of 8-bit data.

Volt = value of level × (Input Gain Control Voltage / 256)

The computer 100 checks whether the measured value converted into the voltage value is within the set standard value and stores the checked value in its own memory.

The computer 100 displays the value on the monitor 110 when the measured value converted into the voltage value is within the set standard value, and then completes the adjustment.

As described above, the present invention calculates the average voltage from which the noise value is removed from the digital value of the control target point under computer control, and automatically adjusts it by driving the motor to remove noise at a specific level to maintain measurement accuracy. By improving the speed of adjustment, the reliability of the waveform checker regulator can be improved.

Claims (1)

Data of the power supply unit 20 for applying DC power to the object under test 10 through the lower leg 41, the signal generator 30 for supplying the pattern signal, and the adjustment point 11 of the object 10 under measurement. A computer 100 that accepts data input to be set by an oscilloscope 13 and a keyboard 120 displaying a screen, initializes a peripheral device according to a control program, calculates input data, and outputs the data to the monitor 110. ), A GPIB control unit 90 for controlling the power supply unit 20 and the signal generation unit 30 by a control command of the computer 100, and a signal switching unit by outputting a digital signal by the computer 100 control command. DI / O controller 80 for controlling the 60 and the input gain controller 61, and an adjustment point of the object to be measured 10 which is extracted through the lower leg 41 by the DI / O controller 80 control. A signal switching unit 60 for switching the output signal of (11) and a gain of the signal switched by the signal switching unit 60; A / D conversion for converting an analog signal input from the input gain control unit 61 for outputting an analog signal and the signal generator 30 and the input gain control unit 61 into a digital signal and inputting it to the computer 100. The motor control unit which drives the motor 71 which is rotated to adjust the adjustment point 11 of the target object 10 by being subordinate to the upper jig 40 by the control command of the computer 62 of the unit 62. 70, the computer 100 sorts the digital signals inputted to the A / D converter 62 in the order of magnitude and sets the upper and lower noise values set by the sorted data array by 10%. Remove the averaged 80% of the data and calculate the average level value, convert the average level value to the voltage value of 8-bit data, check whether the measured value converted into voltage value is within the set standard value, and store it in its own memory. If the value is within the standard value, When the adjustment is completed after the display on the monitor 100 and the measured value does not fall within the standard value, the data is extracted from the A / D changing unit 62 again, and the current extracted value is compared with the previous extracted value. When the value is larger than the previous value and smaller than the preset specification value or smaller than the previous specification value and larger than the preset specification value, this value is displayed on the monitor 110 and the motor 71 is rotated in the forward direction, and the current extraction value is smaller than the previous value. And when the value is smaller than the set standard value or smaller than the previous set value and displayed on the monitor 110, the controller 110 repeatedly repeats rotating the motor 71 in reverse direction. LEVEL voltage automatic control device.