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FCD engine data resource method and apparatus thereof

A data resource and engine technology, which is applied in the storage field of massive floating vehicle data, can solve problems such as error-prone, difficult to find, long-lasting, etc., and achieve the effect of convenient and fast browsing

Active Publication Date: 2013-12-04
CENNAVI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, FCD resources are generally stored on tapes and managed centrally. The problem caused by this is that when it is necessary to search for historical data of a certain stage in a certain city, or to query the road condition information of a certain road in a certain past time period, it is necessary to search for Difficult, long-lasting, highly error-prone

Method used

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  • FCD engine data resource method and apparatus thereof
  • FCD engine data resource method and apparatus thereof
  • FCD engine data resource method and apparatus thereof

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Embodiment 1

[0031] The embodiment of the present invention provides a FCD engine data resource method. Firstly, according to the grid size with a longitude range of 7 minutes and 30 seconds and a latitude range of 5 minutes, the whole country is gridded, and then according to a preset area, for example, a city is used as the grid size. Unit, re-dividing the national map, each of the regions includes at least one grid, each region corresponds to a node server, and the node server receives the FCD within the coverage area of ​​the node server, the specific method is as follows figure 1 As shown, the steps are:

[0032] 101. The node server assigns the received FCD to the grid number corresponding to the grid to which it belongs, and the grid number is the grid number to which the FCD belongs obtained by gridding the national map according to the preset latitude and longitude.

[0033] Such as figure 2 As shown, a grid number (MapID) field is added to the received FCD information, and the ...

Embodiment 2

[0059] An embodiment of the present invention provides an FCD engine data resource device, such as Figure 12 As shown, it includes a gridding unit 21 , a file generating unit 22 and an index generating unit 23 .

[0060] Wherein, the gridding unit 21 is used to assign the received FCD to the grid number corresponding to the grid to which it belongs, and the grid number is the grid number of the FCD to which the national map is gridded according to the preset latitude and longitude. ;

[0061] The file generation unit 22 is used to generate an FCD file using the FCD in each grid in each time period, and store the FCD file, wherein the FCD file corresponds to the FCD in a grid in a time period, and the The FCD file is named with the time range corresponding to the time period, and the FCD file includes the grid number to which the FCD belongs, and the position point information of each floating car received in the time period;

[0062] Index generating unit 23 is used to set ...

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Abstract

The embodiment of the invention discloses a FCD engine data resource method and an apparatus thereof, relating to the floating vehicle data storage field. Node storage of mass FCD resource is realized, and the FCD resource is conveniently and rapidly browsed according to a space-time parameter. The method comprises the following steps: a node server allocates a received FCD to a grid umber corresponding to a belonged grid; the node server utilizes a FCD in each grid in each time period to generate a FCD file, and stores the FCD file; according to the FCD file, the node server establishes a space index file and a time index file, and stores the space index file and the time index file. The embodiment mainly is applied to a storage process of floating vehicle data.

Description

technical field [0001] The invention relates to the storage field of massive floating car data (Floating Car Data, FCD), in particular to a distributed FCD engine data resource method and device. Background technique [0002] FCD is an important data source for studying urban dynamic traffic. At present, there are more than ten cities in China with more than 10,000 taxis, and many cities have close to 10,000 taxis. In the processing of dynamic traffic conditions, the floating car data is continuously uploaded from taxis, buses and other vehicles running on the road back to the data center for a series of processing tasks, and finally generates road condition information for the public. [0003] These uninterrupted massive FCD data streams require a large storage device to store them, and it is quite difficult to centrally manage all the data. Such centralized storage is not convenient for researching urban traffic flow data, traffic conditions, and traffic data mining. Bec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01G06F17/30
Inventor 段克敏邓春柏王宇轩付升荣蒋晟
Owner CENNAVI TECH
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