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LED nixie tube display system based on 8031 single-chip microcomputer

A technology of LED digital tube and display system, applied in static indicators, instruments, etc., can solve the problems of LED drive circuit not working normally, poor computing function of single chip, interference of transmission channel, etc., to improve the poor computing ability, simple circuit, Easy-to-use effects

Inactive Publication Date: 2016-03-09
HARBIN MIMI RICE IND TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the expansion of the scope of application and the need to solve problems, some data has to be processed more complicatedly. For example, the data requires a series of complicated processing before LED display, but due to the poor operation function of the single-chip microcomputer, when the system When complex data is required to be processed quickly, it will be very difficult for the microcontroller to cope with this situation.
At the same time, due to the wide range of uses of the LED display drive circuit, it is often used in various work sites, and there are generally various interference sources in the work site (usually the interference can be divided into two types: one is The interference caused by the voltage power supply; the second is the interference caused by reasons other than the power supply, mainly the interference of the transmission channel), which will bring many problems to the operation of the system and make the LED drive circuit unable to work normally. have serious consequences

Method used

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  • LED nixie tube display system based on 8031 single-chip microcomputer
  • LED nixie tube display system based on 8031 single-chip microcomputer

Examples

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Effect test

Embodiment 1

[0014] Such as figure 1 , figure 2 Shown, a kind of LED digital tube display system based on 8031 ​​single-chip microcomputer, described system is made up of 8031 ​​single-chip microcomputer, MAX7219 chip, MAX232 chip, MAX813L chip, LED digital tube, PC machine, and described PC machine connects MAX232 chip, and described MAX232 The chip is connected to an 8031 ​​single-chip microcomputer, and the 8031 ​​single-chip microcomputer is connected to a MAX7219 chip, and the MAX7219 chip is connected to an LED digital tube.

[0015] The LED digital tube is composed of an 8×8 dot matrix and seven 7-segment digital tubes.

[0016] The working process of the system is as follows: input a data with letters from the PC, process it into a series of hexadecimal numbers through the PC, and transmit it to the 8031 ​​single-chip microcomputer through the MAX232, and then the 8031 ​​single-chip microcomputer receives the data and then performs simple processing of the data The proce...

Embodiment 2

[0018] Such as figure 1 Shown, the main chip of hardware system of the present invention comprises 8031 ​​single-chip microcomputer, MAX7219 chip, MAX232 chip, MAX813L chip. The 8031 ​​single-chip microcomputer is a core chip in this system, which plays a role in controlling the entire LED display drive system. The MAX7219 is a highly integrated serial I / O common-cathode display driver that interfaces a microprocessor with 8-bit 7-segment LEDs or 64-bit single LEDs. The MAX813L chip is used as the anti-jamming chip.

[0019] The working process of the present invention is: input a data with a letter (such as: A123.4567) from the PC, process it into a series of hexadecimal numbers through the PC, and transmit it to the 8031 ​​single-chip microcomputer through MAX232, after the 8031 ​​single-chip microcomputer receives the data Then the data is simply processed and transmitted to the LED (including an 8×8 dot matrix and seven 7-segment digital tubes) through the MAX7219 c...

Embodiment 3

[0021] Such as figure 2 Shown, said input function on the PC among the present invention comprises two parts: (1) input the data that will be displayed on the LED into the PC by the keyboard. (2) Process the data that has been input into the PC, turn it into a series of hexadecimal codes, and store them in an array to prepare for the next communication with the 8031 ​​microcontroller.

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Abstract

Provided is an LED nixie tube display system based on an 8031 single-chip microcomputer. The system comprises an 8031 single-chip microcomputer, an MAX7219 chip, an MAX232 chip, an MAX813L chip, an LED nixie tube, and a PC. The PC is connected to the MAX232 chip. The MAX232 chip is connected to the 8031 single-chip microcomputer. The 8031 single-chip microcomputer is connected to the MAX7219 chip. The MAX7219 chip is connected to the LED nixie tube. The MAX232 chip is adopted to achieve serial port communication between the PC and the 8031 single-chip microcomputer, complicated data processing is better conducted by means of the PC, and therefore the disadvantage of the poor operation capability of the single-chip microcomputer is overcome. The MAX7219 chip serves as an interface controlling display of the LED nixie tube, so a circuit is made to be simpler, the system is easier to use, and the working modes will be more flexible and diversified. Through the anti-interference design of the MAX813L chip, the system can function steadily and reliably for a long period of time.

Description

technical field [0001] The invention relates to a digital display system, in particular to an LED digital tube display system based on an 8031 ​​single-chip microcomputer. Background technique [0002] With the advancement of social science and technology and the continuous improvement of people's living standards, an LED display drive circuit is required in industrial control, instrumentation, graphic display, and window advertisement display systems in post and telecommunications and other industries. In fact, LED is no stranger to us, and we can often see this kind of display, such as electronic billboards on the street, electronic score display boards in stadiums, digital displays in instruments and meters, and so on. Because of this, designing a simple, efficient and reliable LED display driving circuit and its program will have a wide range of uses. [0003] Judging from the current LED display drive circuit, a timing or interrupt control method is generally adopted. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/14
CPCG09G3/14
Inventor 王树鑫
Owner HARBIN MIMI RICE IND TECH CO LTD
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