Key input LED (Light-Emitting Diode) Chinese character display system having wireless communication function

Abstract

The invention discloses a key input LED (Light-Emitting Diode) Chinese character display system having a wireless communication function based on an ATmega16 singlechip, belonging to an industrial automatic product. The key input LED Chinese character display system mainly comprises a 4*4 key input circuit, a wireless communication transmitting end control circuit, a wireless communication transmitting circuit, a wireless communication receiving circuit, a Chinese character display control circuit, a driving circuit and a 16*16 LED display screen. Zone bit codes of Chinese characters required to be displayed are input via 4*4 key, and wireless communication is performed; and meanwhile, corresponding Chinese character font codes are computed under the action of the control circuit, and are further displayed on the 16*16 LED display screen. Due to the adoption of the system, the defects that contents displayed by the LED display screen can only be changed by writing and downloading programs in the prior art are overcome, the displayed Chinese characters can be changed at any time, the flexibility of each part of the system is enhanced greatly, the complexity and difficulty of wiring and maintenance by operating personnel are lowered, the operating personnel is prevented from entering a dangerous operating environment, and the safety of the operating personnel is guaranteed.

Description

technical field [0001] The present invention is based on the ATmega16 single-chip microcomputer of ATMEL company and has key input function and can carry out the LED Chinese character display system of wireless communication, belongs to industrial automation product. Background technique [0002] At present, most LED Chinese character display systems cannot input the Chinese characters to be displayed into the system in real time. They mainly write the Chinese character font codes into the program, and download the program to the control chip by means of data lines. This method is time-consuming and laborious. Professional downloading equipment, and requires users to have high computer programming ability. In addition, the input device not only needs to be connected to the LED display screen through wires, but also needs to be equipped with an information input device for each LED display screen, which reduces the flexibility of each part of the system and causes a waste of ...

AI Technical Summary

Problems solved by technology

[0002] At present, most LED Chinese character display systems cannot input the Chinese characters to be displayed into the system in real time. They mainly write the Chinese character font codes into the program, and download the program to the control chip by means of data lines. This method is time-consuming and laborious. Professional downloading equipment, and requires users to have high computer programming ability

In addition, the input device not only needs to be connected to the LED display screen through wires, but also needs to be equipped with an information input device for each LED display screen, which reduces the flexibility of each part of the system and causes a waste of resources

At the same time, some LED display screens are placed in relatively high or remote places, and programmers need to bear greater danger to their lives when operating.

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