Research And Implement Of A Wireless Inquiring System For Urban Bus Routes

In the cities of medium and large size, it is the problem which is imminenced to be solved that how to help persons search an optimum path of going out on public transportation routes from more than one thousand bus lines.It is also a valuable research issue that public transportation information can be retrieved in any time and any location by adopting portable wireless terminal, mobile phone and etc. Based on WAP, this paper researches a technique solution by adopting mobile phone to realize retrieval of optimum multi-path for going out on public transportation routes, designes and implements a prototype system for wireless retrieval.The main research work made by author of this paper is described in brief as the follows:1) Propose the corresponding modeling methods according to the characteristics of bus run ways on the basis of analyzing the bus lines' and bus stations' characteristics.2) Study, research, implement the algorithms of retrieving the optimum multi-path for the bus lines digraph model is studied, and describe them with pseudocode by adopting the algorithm thinking for searching the first shortest path and the deviation paths.3) Systematicly design the architecture of wireless inquiring system for urban bus routes by adopting B/S and the MVC framework of three-layer.4) Implement the prototype system based on WAP and ASP.net technology framework, including the design of database tables and E-R design, the display of system instances, etc.By randomly selecting 200 Shanghai bus lines, this paper designs and implements the wireless inquiring prototype system. The integrity and the validation of the technology solution described in this paper is verified, including the description and application of the algorithms of inquiring the optimum multi-path. The technology lines and the framework studied and described by the author of this paper have a good reference value for building such inquiring system.