KR950002090Y1 - Display unit - Google Patents

Abstract

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Description

Data listing and display device

1 is a state diagram in which the data registration and display device according to an embodiment of the present invention is operated.

2 is a view showing the front panel of the data registration and display device of the present invention.

3 is a schematic diagram showing the data listing and display device shown in FIG.

4 is a flowchart illustrating a data listing and display device of the present invention.

FIG. 5 is a diagram displayed on the display unit shown in FIG.

* Explanation of symbols for main parts of the drawings

1: Situation board 2: Data listing and display device

3: RS-232C 4: Personal Computer

5: monitor 6: printer

7: operating machine 10: front panel

8, 9, 11: Display part 12: Numeric switch

13: time mode switch 14: test mode switch

15: AD mode switch 16: communication speed adjustment mode switch

17: clock mode switch 18: set switch

19: range adjustment mode switch 20: keypad

21: ROM 22: RAM

23: buffer 24: A / D converter

25: sample hold circuit 26: analog multiplexer

27: LED matrix driver 28: CPU

The present invention relates to a data listing and display device, and more particularly, to change the data range displayed on each display unit and to change the input data position of the display unit, as well as to reduce the power consumption in use. It relates to a display device.

As science and technology develops, electronic and semiconductor technologies have been radically developed, and multifunctional electronic and electrical products, computers, etc. are being used in various ways.

In addition to the computer, communication and factory facilities have been developed in various ways, and electrical or mechanical system diagrams are installed to centrally monitor and control the operation and operation status in the production line according to mass production.

In other words, mosaic graphic boards are installed and used in factory automation, air-conditioning equipment, power monitoring system, etc., and the voltage, power, temperature, etc. are displayed on the mosaic graphic boards through digital meters. It will be displayed according to the data. In this way, when displaying through a digital meter, it is necessary to install 1: 1 so that the wiring is doubled, the price is expensive, and the display is not only difficult to set or modify the displayed display, but also consumes a lot of power.

Therefore, the present invention was devised to solve the above-mentioned shortcomings, and it is possible to display analog signal, pulse signal, and date and time in combination with small power consumption and simple wiring by dynamic display on mosaic graphic board. For example, the 48-channel analog signal and the 8-channel pulse signal can be input, and the 40-digit 4-digit display part can be displayed, and the front panel switches can be operated with simple operations such as voltage, reactive power (-50-50), and frequency ( 55-65), bi-directional voltage flow and pulse display mode can be set, as well as the range, dot position, analog and pulse point can be set easily. It is an object of the present invention to provide a data registration and display device capable of changing the data position.

The data registration and display device of the present invention for achieving the above object, the CPU 28 for controlling and controlling the information so that the analog signal and the pulse signal to be displayed on the mosaic graphic board and the year, month, day, etc. can be displayed in combination In the memory device, a ROM 21 storing system operation and programmed data and a RAM 22 storing input data are connected. The 8-digit display section 11 of the front panel 10 and the keypad ( 20 is connected to the CPU 28, and is connected to a personal computer or a portable computer through the communication port RS-232C (3), the pulse signal (PI) of 8 channels through the digital input buffer 23 48 analog channels AI are sequentially connected to the CPU 28 through the analog multiplexer 26, the sample hold circuit 25, and the A / D converter 24. The CPU 28 is connected to the LED matrix driver 27. That through the four digit display section 8 of the 40 chaenneol connection is characterized.

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

FIG. 1 is a state diagram in which a data listing and display device according to an embodiment of the present invention is operated. The data listing and display device 2 shown in FIG. 1 (a) is, for example, analog input signal AI of 48 channels. The pulse input signal PI of the eight channels is connected and can be displayed on the four digit display unit 8 and the year, month, date and time display unit 9 of the 40 channels on the status plate 1.

The input range of the analog input signal AI is 4-20mA, 0-10V, 0-20V, 0- ± 5V, 0- ± 10V, and the 4 digit display unit 8 is a dynamic display with low power consumption. Voltage, current, frequency, power, power factor, power amount, temperature and flow rate can be displayed.

In addition, a calendar and a clock unit are built in the data listing and display device 2 so that data of the current year, month, day, and hour can be displayed on the year, month, day, and time display unit 9, and a battery backup is also built in. The set data is not erased.

In the data listing and display device 2 shown in FIG. 1 (b), for example, an analog input signal AI of 48 channels and a pulse input signal PI of 8 channels are connected, and RS-232C (3), which is a communication port, is connected. By using RS-485 or a personal computer (4) or a portable computer, data can be set or measured values can be read. The personal computer 4 is equipped with a monitor 5, for example, 40 channels of 4-20 mA, 0-10V, 0- ± 5V, 0-2-V, 0- ± 10V, 4-digit analog data display, 8-channel 8 Digit pulse signal display, 48 channel analog data measurement, 40 channel 4 digit data display, year, month, day and hour display can be performed, and the above data can be printed through printer (6) and operating machine (7) Can be operated.

2 shows a front panel of the data listing and display device of the present invention, wherein the front panel 10 of the data listing and display device 2 is provided with an 8-digit display section 11 and a keypad 20. In addition, the display unit 11 displays the channel number of the display unit 8 (see FIG. 1) to be displayed as the first appearing data as shown in FIG. (1), frequency (2), power amount (3) and temperature (4) can be displayed and modified in part B and analog channel number in part C, respectively. In the part, the full range can be displayed and corrected in the E part, respectively.

The keypad 20 is a plurality of one-touch keys, the numeric switch 12, the time mode switch 13 for setting whether the clock is used, the test mode switch 14 for testing the display state of the display unit 9, and an analog input. AD mode switch 150 for setting whether or not to scan, the communication speed adjustment mode switch 16 for setting the communication speed, the clock mode switch 17 for adjusting the time of day, month and day of the display unit 9, the display unit 8 Set switch (18) for setting display mode, analog channel point, dot position, and full range range for each channel, and 0-10V (0- ± 5V, 0-20V, 0- ± 10V) and 4-20mA. Range adjustment mode switch 19 is provided.

FIG. 3 is a schematic diagram showing the data listing and display device shown in FIG. 1. A CPU which controls and controls information to display a combination of analog and pulse signals and year, month, day, and time displayed on a mosaic graphic board. The memory device 28 is connected to a ROM 21 storing system operation, programmed data, and the like, and a RAM 22 storing input data, and the eight of the front panel 10 described above. The digit display unit 11 and the keypad 20 are connected to the CPU 28 while the personal computer 4 or the portable computer via the RS-232C (3) port as shown in FIG. 1 (b). 48 channels analog data measurement and 40 channels 4 digit data display.

The 8-channel pulse signal PI is input to the CPU 28 through the digital input buffer 23, and the 48-channel analog signal AI is multiplexed by the analog flexor 26 into one information signal. It is sent and supplied to the sample hold circuit 25, and then the sample value of the analog signal is converted into a digital signal by the A / D converter 24 and input to the CPU 28.

Accordingly, the CPU 28, in which the 8-channel pulse signal PI and the 48-channel analog signal AI are input, shows the voltage, current, frequency, power, power factor, power amount, temperature, and flow rate in FIG. The corresponding data is output through the LED matrix driver 27 so as to be displayed on the 4 digit display unit 8 of the 40 channel.

As shown in FIG. 1 (b), the data listing and display device of the present invention uses the RS-232C (3) in the personal computer 4 in the 48-channel analog signal AI and the 8-channel pulse signal. (PI) can be recalled. The CPU 28 uses the keypad 20 of the front panel 10 to adjust the mode and the plot value of each channel of the analog signal (AI) and each channel of the pulse signal (PI). Is set together with the display portion 11.

Therefore, data registration can be measured using the RS-232C (3).

On the other hand, under the control and control of the CPU 28, analog data and pulse data can be displayed on the 4-digit display unit 8 of the 40 channels through the LED matrix driver 27, which is a set switch of the keypad 20. (18) Input analog mode, channel position, dot (decimal point position), and plot from 1 channel to 40 channels as shown in Figs. 5 (a) and (b), and the analog input (AI) terminal. Signal is input through the pulse input (PI) terminal.

In addition, the current year, month, day and hour may be displayed on the display unit 9 through the LED matrix driver 27.

4 is a flowchart illustrating a data listing and display device of the present invention. The data listing and display device of the present invention uses the keypad 20 and the display unit 11 of the front panel 10 as described in FIG. Display the voltage, current, frequency, power, power factor, power amount, temperature and flow rate on the four digit display unit 8 of the 40 channel shown in FIG. 1 (a) under the control and control of the CPU 28. In some cases, the data range (part E of FIG. 5 (b)) displayed on the 4-digit display unit 8 may be changed, or the data position of the display unit 8 may be changed (for example, data of one channel). To 4 channels).

First, in order to set the displayed data range of the 20 channels on the 4 digit display unit 8 of the 40 channels, the set switch 18 of the keypad 20 is pressed. Then, the CPU 28 displays the channel number A, the display mode number B, and the analog / pulse channel number C on the display unit 11, as shown in FIG. As the display mode number B flashes, the display mode is selected by the number switch 12.

Wherein the display mode is for example 0; Voltage, current, power, 1; Power factor, 2; Frequency, 3; Pulse value, 4; Indicates bidirectional voltage, current and temperature.

The CPU 28 then applies an operation signal of the keypad 20 to select an analog / pulse channel number to display the display mode (zero voltage, current, and power) selected on the 20 channel on the 20 channel display of the display unit 8. It is accepted. In the analog / pulse channel number, analog represents two digits and pulse represents one digit.

In this state, the CPU 28 determines the number of display modes, and the dot position d and the plot e are displayed on the display unit 11 as shown in FIG. do. At this time, the number of the dot position (D) is flashing so that the decimal point position is input to the number switch 12. Where the dot position is 0; No decimal point, 1; 1 digit, 2; 2 digits, 3; 3 digits, or the like.

Accordingly, when the CPU 28 flashes the full range position E on the display unit 11 and modifies the full range value of 20 channels with the numeric switch 12, for example, 1500 data is transmitted through the LED matrix driver 27. The changed data value is displayed on the 20 channel display of the display section 8.

On the other hand, for example, when data of one channel is changed to four channels and the data position of the display unit 8 is changed, the CPU 28 detects whether to set another channel of the display unit 8, and then the AD of the keypad 20 is changed. The mode switch 15 and the test mode switch 14 are sensed to be in a data position change state.

In this case, the CPU 28 increases or decreases the display channel of the display unit 8 according to the manipulation of the keypad 20. Here, the data of one channel is displayed on the four channel display through the LED matrix driver 27 under the control and control of the CPU 28 using the keypad 20 and the display unit 11 as described above. Therefore, the data listing and display device of the present invention can display data between one channel and four channels under the control of the keypad 20 and the display unit 11 and the CPU 28.

As described above, according to the present invention, the dynamic display on the mosaic graphic board has a low power consumption and a simple connection, so that an analog signal, a pulse signal, and a date and time can be displayed in a complex manner. By operating, you can set the display mode of voltage, reactive power (-50-50), frequency (55-65), bidirectional voltage current, pulse, etc., as well as easily set full range, dot position, analog and pulse point. As a result, it is possible to provide a data listing and display device capable of changing the data range displayed on each display unit and changing the data position of the display unit.

The present invention is not limited to the above contents, and all modifications, variations, and improvements included in the contents of the utility model registration claims are intended to be included therein without departing from the spirit and principles of the present invention.

Claims (4)

System operation and programmed data are stored in the CPU 28 that controls and controls the information so that the analog and pulse signals to be displayed on the mosaic graphic board can be displayed in a complex manner. The ROM 21 and the high RAM 22 which store the input data are connected, and the 8-digit display part 11 and the keypad 20 of the front panel 10 are connected to the CPU 28 while being a communication port. The RS-232C (3) is connected to the personal computer (4) or the portable computer, the 8-channel pulse signal (PI) is connected to the CPU 28 through the digital input buffer 23, the 48-channel The analog signal AI is sequentially connected to the CPU 28 through the analog multiplexer 26, the sample hold circuit 25, and the A / D converter 24, and the CPU 28 is an LED matrix driver. 4, the four digit display unit 8 of the 40 channels is connected through 27. Data listing and display device. The test mode switch according to claim 1, wherein the keypad (20) tests the display state of the number switch (12), the time mode switch (13) for setting the use of a clock, and the display unit (9) as a plurality of one-touch keys. 14, an AD mode switch 15 for setting whether to scan an analog input, a communication speed adjustment mode switch 16 for setting a communication speed, and a clock mode switch for adjusting the hour, month, and day of the display unit 9 ), Set switch 18 for setting the display mode, analog channel point, dot position, and full range range for each channel of the display unit 8, and 0-10V (0- ± 5V, 0-20V, 0- ± 10V). And a range adjustment mode switch (19) capable of setting 4-20 mA. 2. The display unit (11) according to claim 1, wherein the display unit (11) shows a channel number (A), a display mode number (B), and an analog / pulse channel number (C), and a dot position (D) and a four-digit full range ( E) Data registration and display device characterized in that indicated. 2. The CPU 28 according to claim 1, wherein the CPU 28 uses the keypad 20 and the display unit 11 to change the data range displayed on the 4-digit display unit 8 and to change the data position of the corresponding display unit of the display unit 8. Data listing and display, characterized in that controlled and controlled to enable.