Floating car data processing device and method

A technology for floating car data and processing methods, which is applied in the field of floating car data processing methods and devices, and can solve the problems of slow driving of floating cars, long distances, large average speed errors, etc., and achieve the effect of improving accuracy and reducing errors
CN102013167AActive Publication Date: 2011-04-13CENNAVI TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CENNAVI TECH
Publication Date
2011-04-13

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Abstract

The invention discloses a floating car data processing method and a floating car data processing device, which relate to the field of traffic road condition information processing, and solve the problem of large error existing in the current average speed calculation methods. The floating car data processing method comprises the following steps: firstly, calculating the average speed of a floating car according to the effective GPS point data recorded by the floating car on a traveling road; then, calculating the average instantaneous speed of the floating car according to the instantaneous speeds included in all effective GPS point data on the traveling road; and finally, when the sum of the average speed and a preset speed is less than the average instantaneous speed, correcting the average speed by using the average instantaneous speed so as to obtain a corrected average speed. The method and the device disclosed by the invention have the advantages that: because the average speed is corrected by using the average instantaneous speed, the influence of special GPS point data on the average speed is reduced, thereby reducing the error of the average speed, and then improving the accuracy of calculation on the road condition information. The method and the device disclosed by the invention are used for dynamically acquiring traffic jam information in real time.
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Description

technical field

[0001] The invention relates to traffic road condition information processing, in particular to a floating car data processing method and device. Background technique

[0002] Floating car (FCD, Float Car Data) technology, also known as "probe car", is one of the advanced technical means used in the international intelligent transportation system (ITS) to obtain road traffic information in recent years.

[0003] The basic principle of the floating car technology is: the floating car equipped with the vehicle-mounted global positioning system (GPS) regularly records the vehicle position, direction, time and instantaneous speed information during its driving process, and generates a GPS point data, which is passed through the wireless communication system. Regularly and in real time, it is transmitted to an information processing center, and the information processing center performs abnormal data filtering, map matching and route estimation on these data, and ...

Claims

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