The Design And Realization Of Wireless Ordering System Based On Arm

Wireless electronic ordering system is an important part of restaurant informationmanagement system. The system’ application will not only bring the good economicbenefits to restaurants but also beverage enterprise and slao can advance informationand technology popularization and application in economy widely. A ordering systemappearing in chinese market, lots of ordering products belong to high or low rank whichnot sdapt china, but they aren’t. In this thesis, the characteristic of all kinds of orderingsystems are analysed and compared, it concludes that the main difference among themis the implement method of ordering systems. It puts forward a appropriate solution insociety based on this conclusion: building the wireless ordering system through usingembedded technologies and transmitting data by using short distance wirelesscommunication (SREF-501) and remote communication (GPRS).Firstly, we designed the total scheme and each hardware module of the system andanalyzed the system constitution and function assignments of wireless electronicordering system. Secondly, based on analyzing the whole process of data collection, weproposed a new way of data rectification which is the main influential factors of theprecision of touch screen coordinate location. Then, we decided to adopt single RFchip(SRWF-501) technology to implement wireless data transmitation, It explained thestructure of data frame and hierarchical communication protocol in detail. The way ofmain module querying and slave module listening is used in wireless communicationmodules. Finally, It designed the whole software module, the process is composed oftwo steps:1. we transplanted and downloaded it to S3C44BOX successfully afterdiscussing the transplantation of UC/OS-II opening system and the design of BootLoader startup code.2. The design of ordering interface, communication protocol andcritical driver based on the embedded system was described.The design not only has reference and practical value of ordering system, but alsohas a market prospects and practical value, since it is portable and be used to support avariety of wireless Internet occasions.