The Design And Implementation Of Dynamic LED Display And Its Remote Control System

With the development of modern science and technology, LED dot matrix image display application scope is more and more widely used, from the military equipment guidance, the aiming system and the safety monitoring of financial business to traffic monitoring, public security and traffic monitoring system. LED dot matrix image display is used in almost every industry in every field.This thesis talks about how the signal source is completely and timely transferred to the display equipment. The sending of GSM net message is an independent system to real-time monitor, control and change the displaying contents. Therefore, we can speed up the working efficiency and realize smart life. The thesis mainly describes four aspects of the system:1. The real time of information renewal2. All characters are converted into character mode, put into LED dot matrix, and transferred onto the LED screens;3. Useful information is picked up from the PDU code;4. To obtain resources from GSM net The focuses of this thesis are how to get resources from GSM net, how to pick up useful information from PDU code and how to realize the real time LED message renewal. Three difficulties are mentioned:1. The obtaining of resources2. The acquiring of useful information through PDU code3. The display of character mode on LED screen by dot matrixThe system in this thesis is based on the Linux environment, The epigynous machine is composed of high-performance 32-bit ARM microprocessor to send data and the hypogynous machine is LED screen which is used as its control platform and hardware structure.