Method and system for filling missing floating car data

A floating car data and data technology, which is applied in the field of data processing, can solve the problem that real-time floating car data cannot completely cover the road network, etc.
CN105225486AInactive Publication Date: 2016-01-06HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
Publication Date
2016-01-06
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention provides a method and system for filling missing floating car data. The method includes the following steps of: data screening, map matching, gridding, interpolation region and time determination and missing data interpolation. According to the method and system of the invention, data can have integrity through interpolation. The method and system can be used for estimating traffic congestion degree, calculating road section traffic speed and releasing current traffic announcements so as to provide conveniences for the travel of people.
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Description

technical field

[0001] The invention relates to the technical field of data processing, in particular to a method and system for filling missing floating car data. Background technique

[0002] GPS (Global Positioning System) floating vehicle information collection technology, as an emerging traffic information dynamic collection technology, has many advantages such as all-weather, strong real-time performance, low detection cost, high data accuracy, and wide collection range, and has been recognized by domestic and foreign ITS experts and With the unanimous attention of enterprises, certain theoretical achievements and application implementation have been achieved. In 1991, the United States proposed ADVANCE, a real-time road condition publishing system based on floating cars, which became the main test project of the dynamic vehicle navigation system. Germany's traffic data system DDG uses 4,000 road traffic sensors and 25,000 acquisition vehicles from BMW and Volkswagen ...

Claims

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