Optimization Design Of Bus Sensor And Research Of Information Acquisition And Analysis System

With the development of the national economy,the contradiction between the rapid growth of traffic demand and the limited supply of traffic resources has caused traffic congestion problems.The priority development of public transport is an effective way to solve the city traffic congestion,but there still exist some problems in the domestic public transport system.Therefore,it is of great theoretical to research on a new type of bus sensor and construct the system platform of bus passenger flow data and status information.Based on the principle of obtaining the information of passenger signs in the wireless local area network environment,this paper has carried on the optimized design to the public transportation sensor,deeply studied the multi-source data fusion analysis technology of the bus basic operation data,and researched and developed the bus information collection and analysis system.The main work of this paper is as follows:(1)The demand analysis and the overall scheme design of the bus sensor were selected,and the main components were selected by the demand analysis.Optimized the design of the power module circuit,the microprocessor module circuit,the passenger sign information acquisition module circuit,the spatial information acquisition module and the Wireless communication module circuit.Finally,according to the functional requirements of bus sensor,designed the microcontroller program;(2)The requirements of the information collection and analysis system were determined and the overall design was carried out.Based on the analysis of the data collected by the public transit sensor,the passenger identification information and the spatial information data collected by the public transit were integrated with multi-source data,and transformed into the running characteristics and passenger flow information of the bus.Finally,the framework of the system and the corresponding relationship between module and the functional requirements was analyzed,and the functions of each module of the system was developed;(3)Based on the mathematical description of the bus information,the passengers mark address data information and spatial data were analyzed.The analysis model was established from the bus regulation,delay of bus,the bus arrival time prediction,passenger bus and passenger comfort.The comprehensive and complete bus operation information and passenger flow information were analyzed;(4)Hangzhou k309,3 bus lines were selected as the test and application object,a large amount of spatial information data and passenger signs information data were collected.Through the information acquisition and analysis system of the various functional modules,the line running data for the operating conditions,running delay,running passenger flow and so on were analysed.The accuracy of the optimization model of the arrival time forecasting model and the precision of bus passenger flow acquisition was verified.The results show that the model has good accuracy and the system function module can meet the daily operation of bus and the actual demand of bus passenger flow collection.