KR20030048521A - Automatic calibration and testing device for temperature controller - Google Patents

Abstract

PURPOSE: A temperature controller calibration/test apparatus is provided to improve productivity and reliability of an article by automatically carrying out calibration and test processes of a temperature controller. CONSTITUTION: A temperature controller calibration/test apparatus includes a computer(10), a monitor(20), a multi-meter(30), a current/voltage generator(40), a calibration/test jig(50), a temperature controller(60), a converter(70), a relay box(80) and a communication section(90). The computer(10) includes a GPIB communication port(11), a DIO communication port(12), and an input/output port(13). The computer(10) measures a characteristic value of the temperature controller(60) based on a temperature controller calibration/test program. The GPIB communication port(11) transmits a control value to the current/voltage generator(40) and receives a measured value from the multi-meter(30). The DIO communication port(13) transmits a control signal to the relay box(80) and receives an output signal from the relay box(80).

Description

AUTOMATIC CALIBRATION AND TESTING DEVICE FOR TEMPERATURE CONTROLLER}

The present invention relates to an automatic calibration / inspection apparatus for a temperature controller, and more particularly, to automatically calibrate and inspect a temperature controller manufactured through a production line using an interface method using a computer. It is about the inspection device.

Conventionally, the operator manually inspected the thermostat manufactured through the production line. This method has a problem in that the reliability of the product is degraded due to random calibration and judgment error caused by the operator's supervision.

In addition, since the calibration and inspection lines are configured separately, there is another problem that productivity is lowered due to the moving time between the processes and the overlapping inspection.

Accordingly, the present invention is to solve the above-mentioned conventional problems, the object of the calibration and inspection of the thermostat manufactured through the production line using a computer-based interface method automatically in one place without moving between processes It is intended to provide a temperature control automatic calibration / inspection device capable of producing high quality products of 0.1% grade by improving the reliability and productivity of the product.

1 is a block diagram of a thermostat automatic calibration / inspection device according to the present invention.

<Description of main parts of drawing>

10: Computer 11: GPIB Communication Port

12: DIO communication port 13: I / O port

20: monitor 30: multimeter

40: current / voltage generator 50: jig for calibration / inspection

60: temperature controller 70: converter

80: relay box 90: communication unit

Features of the automatic temperature control / calibration device according to the present invention for achieving the above technical problem,

A calibration / inspection jig to which the temperature controller is coupled; A computer which measures the characteristic value of the temperature controller by a calibration / inspection program and automatically corrects / inspects it to a normal operating point; A current / voltage generator for generating current / voltage according to the control signal of the computer; A relay box for receiving the current / voltage and applying it to the temperature controller and receiving and controlling an output signal from the temperature controller; A multimeter for measuring a measured value of a signal output by the control of the relay box and transmitting the measured value to the computer; And a communication unit for controlling communication between the computer and the temperature controller.

The computer outputs a control signal by the calibration / testing program to the current / voltage generator and receives the measured value measured by the multimeter; A DIO communication port which transmits a control signal by the calibration / inspection program to the relay box and receives an output signal by the control of the relay box; And an input / output port for transmitting a control signal from the calibration / inspection program to the temperature controller and receiving and controlling an output signal from the temperature controller.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a thermostat automatic calibration / inspection device according to the present invention.

As shown, the configuration of the present invention is largely comprised of a computer 10, a monitor 20, a multimeter 30, a current / voltage generator 40, a jig 50 for calibration / inspection, and a temperature. It consists of the controller 60, the converter 70, the relay box 80, and the communication part 90.

The computer 10 includes a GPIB communication port 11, a DIO communication port 12, and an input / output port 13, which is coupled to the calibration / inspection jig 50 by a temperature control calibration / inspection program. Measure the characteristic value of the thermostat 60 and automatically calibrate to the normal operating point.

The GPIB communication port 11 transmits a control value from a calibration / inspection program driven through the computer 10 to the current / voltage generator 40 and the measured value measured from the multimeter 30. Receive the input.

The DIO communication port 12 transmits a control signal from a calibration / inspection program driven through the computer 10 to the relay box 80 and receives an output signal from the relay box 80. .

The input / output port 13 transmits a control signal from a calibration / inspection program driven through the computer 10 to the temperature controller 60 through the relay box 80, and the temperature controller 60. It receives the output signal from the relay box 80 to control the temperature controller (60).

The monitor 20 finally outputs a result of whether the product is good or not together with the state of the temperature controller 60 to be calibrated / inspected through a calibration / inspection program of the computer 10.

The multimeter 30 measures the output signal from the relay box 80 and transmits it to the GPIB communication port 11 of the computer 10.

The current / voltage generator 40 applies the current / voltage generated by the control from the calibration / checking program driven through the computer 10 to the relay box 80.

The relay box 80 receives the current / voltage applied from the current / voltage generator 40 and supplies it to the temperature controller 60.

The converter 70 transmits a signal generated from the temperature controller 60 to the relay box 80 and receives a signal input to the relay box 80 through the input / output port 13 of the computer 10. The thermostat 60 is transmitted.

The communication unit 90 causes a control signal from a calibration / inspection program driven through the computer 10 to be transmitted to the temperature controller 60 through the relay box 80, and the temperature controller 60. The signal output from the control is to be transmitted to the computer 10 through the relay box 80 to enable communication between the computer 10 and the temperature controller 60.

It will be described in detail the operation of the thermostat automatic calibration / inspection device of the present invention configured as described above.

First, as the calibration / inspection of the temperature controller 60 coupled to the calibration / inspection jig 50 is started by a calibration / inspection program driven through the computer 10, current output calibration, resistance input calibration, As the current input calibration and compensation input calibration are performed sequentially, the parameter is initialized and the calibration test is finished.

After that, the automatic test is started, and the resistance input test, the current input test, the voltage input test, the compensation input test, the analog output test, the relay contact operation state test, and the pulse output test are sequentially performed. ) Or not is automatically output through the monitor (20).

In the above described and illustrated with respect to the preferred embodiment of the present invention, the present invention is not limited to the above-described embodiment, the general knowledge in the field of the present invention without departing from the gist of the invention claimed in the claims Anyone with a variety of modifications can be made, as well as such modifications are within the scope of the claims.

As described above, according to the thermostat automatic calibration / inspection device of the present invention, the calibration and inspection of the thermostat manufactured through the production line using a computer interface method is automatically made in one place without moving between processes As a result, the reliability and productivity of the product is improved, and the production of high quality products of 0.1% level is possible, and the difficulty of securing technical manpower is also solved.

Claims (2)

Calibration / inspection jig 50 to which the thermostat 60 is coupled; A computer (10) for measuring a characteristic value of the temperature controller (60) by a calibration / inspection program and automatically correcting / inspecting the normal operating point; A current / voltage generator 40 for generating current / voltage according to the control signal of the computer 10; A relay box (80) which receives the current / voltage and applies it to the temperature controller (60) and receives and controls an output signal from the temperature controller (60); A multimeter (30) for measuring a measured value of a signal output by the control of the relay box (80) and transmitting the measured value to the computer (10); And The computer 10 and the thermostat 60, the temperature controller automatic calibration / inspection device, characterized in that it is configured to the communication unit 90 to control the communication. 2. The computer system of claim 1, wherein the computer 10 A GPIB communication port 11 for outputting a control signal by the calibration / testing program to the current / voltage generator 40 and receiving the measured value measured by the multimeter 30; A DIO communication port (12) for transmitting a control signal by the calibration / inspection program to the relay box (80) and receiving an output signal under control of the relay box (80); And Automatic control of the temperature controller, characterized in that the input and output port 13 for transmitting the control signal from the calibration / inspection program to the temperature controller 60, and receives and controls the output signal from the temperature controller 60 Calibration / Inspection Device.