Design And Implementation Of The PDA Orienting To Logistics Industry

Nowadays, with the development of economic globalization and the increasingspreading of e-commerce, the role of logistics industry has become more and moreimportant. Information technology has become one of the important ways for logisticsindustry to improve the efficiency and reduce the costs. As a convenient informationcollection and transmission tool, logistics PDA is an important tool of logisticsinformatization undoubtedly, and it has a very important application prospect.According to the deep research for the key technology of the hardware and software ofthe logistics PDA, this essay designs and implements the PDA for logistics. This essaymainly does the following work:1. According to the deep research for the key technology of the hardware andsoftware of the logistics PDA and its related knowledge, this article constructs thehardware underlying architecture of the logistics PDA. Aiming at the characteristic ofhardware and the interface of pin, this article designs and implements the underlyingdevice driver of logistic PDA.2. By studying the related knowledge, creating of multiple tasks and themechanism of task scheduling of μC/OS-Ⅱ operating system, this article divides thetasks of the logistics PDA rationally and implements its synergetic processing.3. By studying the related technologies of SIM900A of GPRS module，this articleimplements the function of wireless data transmission of the logistics PDA. In addition,aim at the requirements of the logistics industry, this article designs and implements theembedded software of logistics PDA.4. By studying the related knowledge of μC/GUI and graph control programmingtechniques, this article solves the difficult problems of the same key controlling thedifferent function in different interface by using the multi-control algorithm. And thisarticle implements the smooth switching of the interface and the function of the keycontrolling interface without conflict.The application of the logistics PDA can effectively enhance the inefficient manualoperation and solve the difficulty of monitoring the goods. By using this application,logistics enterprise can strengthen their management ability; improve the managementand circulation efficiency and decrease operating costs, which provide strong guaranteeto enhance their competitiveness.