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Traffic flow data recording method and device
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A technology of data recording and traffic flow, applied in the direction of traffic flow detection, etc., can solve the problems of fragmented, unsustainable, time-consuming and labor-intensive traffic flow historical data, and achieve the effect of fast and convenient query
Active Publication Date: 2014-01-01
深圳四维图新科技有限公司
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Problems solved by technology
It is essential to study the change of traffic flow for one year or even several years, and the fragmentation of historical data of traffic flow makes this work difficult to carry out
In most cases, people have to use floating vehicles, induction coils and other equipment to collect historical traffic flow data, and then process it again against the new version of vector maps. This method is time-consuming and laborious. As more and more raw data are collected, this method unsustainable
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Embodiment 1
[0023] An embodiment of the present invention provides a method for recording traffic flow data, such as figure 1 shown, including:
[0024] 101. Extract at least one location point from each road link in the road network map;
[0025] 102. Store the extracted location points in a location point layer, number each extracted location point, and assign a corresponding unique identification ID;
[0026] 103. Record the correspondence between the road links of the road network map and the extracted location point IDs thereon.
[0027] A traffic flow data recording method provided by an embodiment of the present invention extracts at least one location point from each road link in the road network map, assigns a corresponding unique identification ID, and records the link ID and location point ID Corresponding relationship, use location point ID to record traffic flow data. It solves the problem of time-consuming and labor-intensive collection of traffic flow historical data usi...
Embodiment 2
[0056] An embodiment of the present invention provides a traffic flow data recording device, such as Figure 5 As shown, it includes an extraction unit 501 , an identification unit 502 and a recording unit 503 .
[0057] Wherein, the extraction unit 501 is used to extract at least one location point on each road link in the road network map;
[0058] An identification unit 502, configured to store the extracted position points in the position point layer, and number each extracted position point, and assign a corresponding unique identification ID;
[0059] The first recording unit 503 is configured to record the corresponding relationship between the road links of the road network map and the extracted location point IDs thereon.
[0060] A traffic flow data recording device provided by an embodiment of the present invention extracts at least one location point from each road link in the road network map, assigns a corresponding unique identification ID, and records the link...
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Abstract
The embodiment of the invention discloses a traffic flowdata recording method and device, relating to the technical field of dynamic traffic; and according to the traffic flowdata recording method and device, historical data of a traffic flow can be rapidly and conveniently inquired, and the historical data of the traffic flow cannot be spitted while a road network map is updated. The traffic flow data recording method comprises the steps of: extracting at least one position point from each road link in the road network map; storing the extracted position points into a position point layer, numbering each extracted position point and endowing each position point with corresponding unique identification ID; and recording a corresponding relation between the road link in the road network map and the ID of each position point extracted from the road link. The traffic flow data recording method and device are mainly applied to the processing procedure of the traffic flow information.
Description
technical field [0001] The invention relates to the technical field of dynamic traffic, in particular to a location-based traffic flow data recording method and device. Background technique [0002] Real-time traffic flow information is an important information of dynamic traffic information system, and the collection, processing and release of traffic flow data need the support of vector maps. Based on the topological vector map, the data collected by floating vehicles, induction coils, microwave detection and other equipment are processed to generate real-time traffic flow maps, and then the traffic flow is released through broadcasting networks, the Internet, wireless Internet, cable TV networks, etc. map. [0003] In the process of realizing the present invention, the inventor found that the traditional traffic flow data recording method is to record the traffic flow information of the road with the road link ID (Identity, numbering) in the vector map. When the map is u...
Claims
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