Shulou(Shulou.com)06/03 Report--

Design of bus query system

With the development, bus query system has become an important part of urban road traffic. In order to enable some underdeveloped areas to use the bus query system and get more information, the bus query system is designed.

1, the goal of the system:

(1) it is convenient for citizens to better grasp the information about public transportation and assist the management of public transportation.

(2) to meet the requirements of the rapid change of urban public transport and social traffic mode in the future, to meet the requirements of public transport system reform, and to meet the requirements of the development of urban public transport services to a higher level.

two。 System requirements:

The urban public transport query system needs to meet the needs from two aspects, namely, the ordinary users of the public transport system and the background maintenance and management personnel.

The demand of ordinary users who query the public transport system is to query the urban bus lines, stations and transfer plans and other information. Backstage maintenance managers backup and restore the background database, add bus line stations and change existing bus line stations.

The following specific system requirements are met during the development of the urban public transport query system:

Meet the basic requirements of users to query public transport information.

Sufficient background management staff to facilitate the change of urban bus lines and other information and other basic requirements.

The requirements for the skills of users using the system are relatively low, and the operation is convenient.

It can ensure the safety and accuracy of urban public transport information data.

3. Data flow diagram:

4.E-R figure:

User Emurr figure:

Administrator Emurr figure:

Message board Emurr picture:

The number of trains and Emurr map of the station:

5. State transition diagram:

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