| LED display is one of the important ways of modern people to obtaininformation. With the continuous development of LED display technology, more andmore cheap price, control method is more and more mature, makes its applicationscope more and more widely. The continuous development of communicationtechnology and embedded technology, makes the wireless LED communicationsystem, applications and research got great development. Said goodbye to the pastwired update LED display mode, greatly save the resources, improve the efficiency.Community for residents in Changsha and vehicle-mounted terminal LEDdisplay application background, based on the study of a large number of references,the reference related, on the basis of design, puts forward a wireless LED the designof the communication terminal based on STM32F103C8T6chip. Using GSM networkSMS updates the business and GPRS technology to realize the function of the wirelessLED display screen update.LED communication terminal based on embedded microcontroller is the corepart of the wireless LED communication system, which is responsible for thecommunication of data receiving and processing, LED display screen control anddisplay. In this paper, on the basis of the application background, elaborated in detailthe design and realization of the wireless LED communication terminal based onSTM32F103chip. Including the selection of several kinds of communicationtechnology, the wireless LED communications platform design, communicationterminal hardware and software design and implementation and testing of the wholecommunication system. In the overall design of the thesis chapters, analysis thefunction of the demand of the system, and puts forward the corresponding to thissystem. In this system, we choose the communication way is based on the GSMnetwork SMS short message and GPRS transmission business operations, we choosesSTM32F103C8T6chip as Terminal control MCU, SIM300C as Communicationmodule. In hardware design part of this article, we concretely analyze the keyproblems of hardware design, and on this basis, gave the hardware design solution andthe circuit principle diagram. In software design, software design is divided intoseveral modules. We show the flow chart of the overall program design, andintroduced respectively under SMS short message and GPRS mode of software design.Finally in the IAR compiler environment realize engineering files to create, edit, andburn-in. Throughout the communication terminal design is completed, we conducted thehardware debugging and welding. We have done various modules of the hardware andsoftware testing, found in the testing process and modify the optimization of theexisting problems and defects in the system, Finally completed the wholecommunication system in the way of SMS and GPRS wireless LED test under the wayof communication. Under two ways to realize the wireless LED display updated,update the effect is good, the transport time is short, to achieve the desired effect, Andin each district and part of the vehicle terminal operation of Changsha, the measuredresult is good. |
