Position information acquisition apparatus and method, and traffic status estimation system and method

Abstract

The invention provides a position information acquisition apparatus and method, and a traffic status estimation system and method. The position information acquisition method comprises: during a process when a mobile communication terminal initiates active communication, based on a mobile network side positioning technology, acquiring first data of the mobile communication terminal; through actively paging the mobile communication terminal, based on the mobile network side positioning technology, acquiring second data, which is generated based on the paging, of the mobile communication terminal; according to a mode selection parameter, selecting at least one from a step of acquiring the first data and a step of acquiring the second data, and controlling the selected data acquisition step to be at a working state; and sending data acquired by the data acquisition step at the working state to a data analysis end so that the data analysis end can carry out traffic status estimation based on the received data. According to the invention, an active acquisition mode and an inactive acquisition mode are combined for acquiring position information and traffic status estimation.

Description

Technical field [0001] The present invention relates to the field of mobile communication and traffic information collection, in particular to a position information collection device, a traffic condition estimation system and method. Background technique [0002] The existing schemes for collecting traffic information based on mobile communication networks can be divided into active traffic information collection and passive traffic information collection according to whether new signals need to be generated during the collection process; according to the subject of positioning, they can be divided into mobile network-based Traffic information collection and mobile terminal-based traffic information collection. [0003] Typical active traffic information collection includes a Paging-based technical solution. The accuracy of this Paging-based technical solution and the real-time information depend on: sampling frequency, positioning accuracy, and within a given area The number of ...

AI Technical Summary

Problems solved by technology

[0005] Among them, when the active scheme is used to collect traffic information, a large number of mobile stations need to be sampled, and active traffic information collection schemes such as Paging will greatly increase the network transmission load; while when the passive scheme is used to collect traffic information, if the traffic congestion is serious, the speed of the vehicle will be extremely high. low, the call duration of the vehicle-mounted mobile station is less than the time required to pass through two consecutive switching points in the road segment, and it is impossible to obtain enough switching sample size to estimate the travel speed of the road segment

Images