Bus transportation velocity extraction method based GPS (Global Positioning System) data of bus

Abstract

The invention discloses a bus transportation velocity extraction method based GPS (Global Positioning System) data of a bus, which belongs to the field of dynamic bus information acquisition and processing and is dedicated to the process of extracting transportation velocity by virtue of the GPS data of the buses. The method is characterized in that on the basis of GPS-acquired dynamic bus running data, the time of the bus passing through each two adjacent stops is judged according to the time in a running segmental arc of bus, which is positioned through the GPS data on the premise of correctly determining bus stops and line information; and then combining static information such as the distance between the stops and the like, the transportation velocity between the bus stops is figured out. The method is mainly applied to dynamic acquisition of the bus transportation data, is suitable for all the bus lines with GPS devices, overcomes the time delay of the conventional acquisition methods, greatly reduces the workload and can be applied to the aspects of dynamic bus monitoring, service evaluation and the like.

Description

technical field [0001] The invention belongs to the field of public transportation dynamic information collection and processing, and establishes a complete and reliable method for extracting public transportation speed. Background technique [0002] Prioritizing the development of public transport is an important means to increase road utilization, alleviate congestion, and improve the environment. At present, giving priority to the development of public transport has become the main strategy for the sustainable development of urban transport. Public transportation undertakes more and more passenger transportation and commuting tasks in the travel of urban residents. To make the public transportation system operate reliably and effectively, it must be based on reliable and accurate detection of traffic operation status and acquisition of parameters. Real-time monitoring and analysis of bus operation status, timely and accurate discovery of traffic operation problems in th...

AI Technical Summary

Problems solved by technology

[0003] The delivery speed and operating efficiency of public transport directly affect the attractiveness of public transport in residents' travel choices. At the same time, the acquisition of dynamic bus operation status information directly affects the level of public transport information services. At present, traditional bus speed surveys rely on large-scale Manual survey or sample follow-up survey, the difficulty of data acquisition and poor real-time performance, the impact of errors generated in the manual operation process is also relatively large, the results obtained cannot meet the application needs of public transport operation monitoring, operation management and passenger information services

With the popularization of informatization, more and more buses are equipped with on-board GPS monitoring systems. The data collected by the GPS data acquisition system is the instantaneous speed of the vehicles, and the data fluctuates greatly, excluding the entry and exit of buses and traffic The delay time of the control can not accurately describe the operation status of public transport

[0004] Generally speaking, there is no good way to obtain the real-time and accurate transportation speed of public transportation at present. The operating data of public transport vehicles, in-depth study of the operating state characteristics and change process during its operation, find out the internal connections and laws, and establish a set of adaptable bus transport speed processing methods to meet the needs of public transport dynamic information extraction and monitoring and evaluation needs

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