CN102568204B - Method and device for checking position reference data - Google Patents
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Abstract
The invention discloses a method and device for checking position reference data, relating to the field of intelligent transportation systems and realizing self checking of the position reference data. The embodiment of the invention provides a method for checking the position reference data, which comprises the steps of: reading the position reference data, obtaining geographic location description data in the position reference data; obtaining map data same as a coverage region of the position reference data from the position reference data, generating first reference data according to the map data; matching the geographic location description data with the first reference data; if reference geographic coordinates which are inconsistent with the description of map geographic coordinates of the first reference data exist in the geographic location description data, extracting the reference geographic coordinates and the description thereof, which are inconsistent, and generating first difference description data.
Description
Technical field
The present invention relates to intelligent transportation field, relate in particular to a kind of inspection method and device of position reference data.
Background technology
The basic data of serving transport information is called to position reference data, along with constantly popularizing of internet, applications, the continuous expansion in Informatization Service field, people's trip more and more depends on navigational system, and dynamic information is the important component part of navigational system, as the basic data of dynamic information service, the quality of position reference data is directly connected to the quality of navigation Service.
Reference position information is before sending to the portable units such as navigating instrument, need to confirm the consistent degree of reference position information and real world geography information, many will leaning on manually gathers geography information on the spot at present, carries out the consistency check of position reference data and real geography information, takes time and effort.
Summary of the invention
The embodiment of the present invention provides a kind of inspection method and device of position reference data, has realized the self-check of position reference data.
For achieving the above object, the embodiment of the present invention adopts following technical scheme:
On the one hand, provide a kind of inspection method of position reference data, comprising: read in position reference data, obtain the geographic position data of description in described position reference data, described geographic position data of description comprises with reference to geographic coordinate and corresponding description thereof; Obtain the map datum identical with described position reference data overlay area according to described position reference data, according to described map datum, generate the first reference data, described the first reference data comprises map geographic coordinate and corresponding description thereof; Described geographic position data of description and described the first reference data are mated; If exist with the description of the map geographic coordinate of described the first reference data inconsistently with reference to geographic coordinate in the data of description of described geographic position, extract described inconsistently with reference to geographic coordinate and description thereof, generate the first difference data of description.
Corresponding to said method, a kind of testing fixture of position reference data also is provided, it is characterized in that, comprising:
The first performance element, for reading in position reference data, obtain the geographic position data of description in described position reference data, and described geographic position data of description comprises with reference to geographic coordinate and corresponding description thereof;
The second performance element, obtain the map datum identical with described position reference data overlay area for the position reference data obtained according to described the first performance element, generate the first reference data according to described map datum, described the first reference data comprises map geographic coordinate and corresponding description thereof;
The first matching unit, the first reference data that the geographic position data of description that described the first performance element is obtained and described the second performance element generate is mated;
The 3rd performance element, if obtain for the first matching unit, described geographic position data of description exists and the description of the map geographic coordinate of described the first reference data is inconsistent with reference to geographic coordinate, extract described inconsistently with reference to geographic coordinate and description thereof, generate the first difference data of description.
The inspection method of the position reference data that the embodiment of the present invention provides and device, due to the consistance that checks that by obtaining map datum corresponding to position reference data overlay area reference data is geographical with reality, if exist inconsistent with reference to geographic coordinate, it is extracted, generate the first difference data of description, described the first difference data of description can be offered to the staff, make the staff carry out next step confirmation or repair to it, confirm or repair no matter be, the geographic position that the geographic position that its first difference data of description covers will cover much smaller than reference location data, greatly reduced artificial work.
The accompanying drawing explanation
The inspection method process flow diagram one of the position reference data that Fig. 1 provides for the embodiment of the present invention;
The inspection method flowchart 2 of the position reference data that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the testing fixture of the position reference data that Fig. 3 provides for the embodiment of the present invention;
The structural representation of the first matching unit in the testing fixture that Fig. 4 is the position reference data shown in Fig. 3;
The structural representation two of the testing fixture of the position reference data that Fig. 5 provides for the embodiment of the present invention;
The structural representation of the second matching unit in the testing fixture that Fig. 6 is the position reference data shown in Fig. 5.
Embodiment
In below describing, in order to illustrate rather than, in order limiting, to have proposed the detail such as specific device structure, technology, in order to thoroughly cut, understand the present invention.Yet, not it will be clear to one skilled in the art that in there is no other embodiment of these details and can realize the present invention yet.In other situation, omit the detailed description to well-known device, circuit and method, in order to avoid unnecessary details hinders description of the invention.
The embodiment of the present invention provides a kind of inspection method and device of position reference data, has realized the self-check of position reference data.
As shown in Figure 1, the inspection method of the position reference data that the embodiment of the present invention provides, can be applied on the server of producing described position reference data, can comprise:
101, read in position reference data, obtain the geographic position data of description in described position reference data.
Wherein, described geographic position data of description comprises with reference to geographic coordinate and corresponding description thereof.
102, obtain the map datum identical with described position reference data overlay area according to described position reference data, according to described map datum, generate the first reference data.
Wherein, described the first reference data comprises map geographic coordinate and corresponding description thereof.
103, described geographic position data of description and described the first reference data are mated.
In the present embodiment, described described geographic position data of description and described the first reference data are mated, can specifically be comprised: extract the reference geographic coordinate in the data of description of described geographic position; Obtain and fall into that to take described be the center of circle with reference to geographic coordinate, the first reference data in the overlay area that predeterminable range is radius; It is consistent that judgement falls into whether corresponding with the reference geographic coordinate of the described geographic position data of description description of the description of the first reference data of overlay area.Optionally, in the situation that described position reference data precision prescribed is higher, also can directly by the reference geographic coordinate of described geographic position data of description, find the first reference data of correspondence in map datum, both descriptions are contrasted, judge whether consistent.
If exist with the description of the map geographic coordinate of described the first reference data inconsistently with reference to geographic coordinate in 104 described geographic position data of description, extract described inconsistently with reference to geographic coordinate and description thereof, generate the first difference data of description.
What deserves to be explained is, described position reference data can be Traffic Message Channel (Traffic Message Channel, TMC) position reference data or be the position reference data of Chinese Real-time Traffic Information (Real-Time Information of China, RTIC).
In the present embodiment, described the first difference data of description can exist with the form of key point, by a certain central point in road, represents a certain road.As shown in table 1, comprise the X coordinate, Y coordinate, the road that (X, Y) coordinate points is corresponding.
Table 1: the first difference data of description is enumerated table
Known by table 1, in reference location data, exist the first reference data in above-mentioned geographic position data of description and map datum inconsistent.Wherein, the first title road corresponding with the second title be the intersection corresponding with described link name respectively, if only there is the first title, what illustrate that coordinate points means is the intersection of the road that road corresponding to link name is corresponding with the first title.For example:
(114.59844,37.59752) mean in the phoenix street, from intersection, Yu Gunxiu mill, phoenix street, starts to the road information of one section road till intersection, Yu Lindun road, phoenix street.
| The X coordinate | The Y coordinate | Link name | The first title | The second title |
| 114.59657 | 37.61548 | The phoenix street | Roll and embroider mill |
(114.59657,37.61548) mean in the phoenix street, the road information of the intersection in Yu Gunxiu mill, phoenix street.
The inspection method of the position reference data that the embodiment of the present invention provides, due to the consistance that checks that by obtaining map datum corresponding to position reference data overlay area reference data is geographical with reality, if exist inconsistent with reference to geographic coordinate, it is extracted, generate the first difference data of description, described the first difference data of description can be offered to the staff, make the staff carry out next step confirmation or repair to it, confirm or repair no matter be, the geographic position that the geographic position that its first difference data of description covers will cover much smaller than reference location data, greatly reduced artificial work.
For the autoptical scope further reduced a staff, as shown in Figure 2, the detection method of described position reference data also comprises:
105, obtain the real time GPS floating car data identical with described the first difference data of description overlay area, according to described GPS floating car data, generate the second reference data.
Wherein, described the second reference data comprises GPS Floating Car coordinate and corresponding description thereof.
106, described the first difference data of description and described the second reference data are mated.
In the present embodiment, described described the first difference data of description and described the second reference data are mated, specifically can be comprised: extract the reference geographic coordinate in described the first difference data of description; Obtain and fall into that to take described be the center of circle with reference to geographic coordinate, the second reference data in the overlay area that predeterminable range is radius; It is consistent that judgement falls into whether corresponding with the reference geographic coordinate of described the first difference data of description description of the description of the second reference data of overlay area.
If exist and the inconsistent data of described the second reference data in 107 described difference geographic position data of description, extract described inconsistent data, generate the second difference data of description.
For example, above-mentioned table 1, through step 105-107, generates the second difference data of description, with the form of table 2, presents to the staff.
Table 2: the second difference data of description is enumerated table
Can further dwindle the scope in the geographic position that needs the staff to be confirmed and repair like this, the workload further reduced a staff, confirmation by the mood in Fengtai road bypass and section two road, Fengtai road bypass south through real-time GPS data, determine that it is identical with real geographic position.
Through after Secondary Match, the staff can confirm on the spot according to the second difference data of description, the scope of the first difference data of description compared has reduced again greatly, in addition, according to the result of final output, no matter be the first difference data of description or the second difference data of description, can form written report, the matching degree of performance current location reference data, and the operation that can be correlated with according to matching degree.
As shown in Figure 3, the testing fixture of the position reference data that the embodiment of the present invention provides comprises:
The first performance element 201, for reading in position reference data, obtain the geographic position data of description in described position reference data, and described geographic position data of description comprises with reference to geographic coordinate and corresponding description thereof;
The second performance element 202, obtain the map datum identical with described position reference data overlay area for the position reference data obtained according to described the first performance element, generate the first reference data according to described map datum, described the first reference data comprises map geographic coordinate and corresponding description thereof;
The first matching unit 203, the first reference data that the geographic position data of description that described the first performance element is obtained and described the second performance element generate is mated;
In the present embodiment, as shown in Figure 4, described the first matching unit can comprise:
The first extraction module 2031, for extracting the reference geographic coordinate of described geographic position data of description;
The first acquisition module 2032, fall into for obtaining that to take the reference geographic coordinate that described the first extraction module extracts be the center of circle, the first reference data in the overlay area that predeterminable range is radius;
The first judge module 2033, whether corresponding with the reference geographic coordinate of described geographic position data of description the description for the description that judges the first reference data that falls into overlay area that described the first acquisition module obtains be consistent.
The 3rd performance element 204, if obtain for the first matching unit, described geographic position data of description exists and the description of the map geographic coordinate of described the first reference data is inconsistent with reference to geographic coordinate, extract described inconsistently with reference to geographic coordinate and description thereof, generate the first difference data of description.
Further, as shown in Figure 5, described device can also comprise:
The 4th performance element 205, for obtaining the identical real time GPS floating car data in the first difference data of description overlay area generated with described the 3rd performance element, generate the second reference data according to described GPS floating car data, described the second reference data comprises GPS Floating Car coordinate and corresponding description thereof;
The second matching unit 206, the second reference data that the first difference data of description that described the 3rd performance element is generated and described the 4th performance element generate is mated;
In the present embodiment, as shown in Figure 6, described the second matching unit can comprise:
The second extraction module 2061, for extracting the reference geographic coordinate of described the first difference data of description;
The second acquisition module 2062, fall into for obtaining that to take the reference geographic coordinate that described the second extraction module extracts be the center of circle, the second reference data in the overlay area that predeterminable range is radius;
The second judge module 2063, judge that whether corresponding with the reference geographic coordinate of described the first difference data of description the description of the second reference data that falls into overlay area that described the second acquisition module obtains description be consistent.
The 5th performance element 207, exist and the inconsistent data of described the second reference data if obtain difference geographic position data of description for described the second matching unit, extracts described inconsistent data, generates the second difference data of description.
The testing fixture of the position reference data that the embodiment of the present invention provides, due to the consistance that checks that by obtaining map datum corresponding to position reference data overlay area reference data is geographical with reality, if exist inconsistent with reference to geographic coordinate, it is extracted, generate the first difference data of description, described the first difference data of description can be offered to the staff, make the staff carry out next step confirmation or repair to it, confirm or repair no matter be, the geographic position that the geographic position that its first difference data of description covers will cover much smaller than reference location data, greatly reduced artificial work.
One of ordinary skill in the art will appreciate that all or part of step realized in above-described embodiment method is to come the hardware that instruction is relevant to complete by program, described program can be stored in a computer-readable recording medium, as ROM/RAM, magnetic disc or CD etc.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (9)
1. the inspection method of a position reference data, is characterized in that, comprising:
Read in position reference data, obtain the geographic position data of description in described position reference data, described geographic position data of description comprises with reference to geographic coordinate and corresponding description thereof;
Obtain the map datum identical with described position reference data overlay area according to described position reference data, according to described map datum, generate the first reference data, described the first reference data comprises map geographic coordinate and corresponding description thereof;
Described geographic position data of description and described the first reference data are mated;
If exist with the description of the map geographic coordinate of described the first reference data inconsistently with reference to geographic coordinate in the data of description of described geographic position, extract described inconsistently with reference to geographic coordinate and description thereof, generate the first difference data of description.
2. method according to claim 1, is characterized in that, also comprises:
Obtain the real time GPS floating car data identical with described the first difference data of description overlay area, according to described GPS floating car data, generate the second reference data, described the second reference data comprises GPS Floating Car coordinate and corresponding description thereof;
Described the first difference data of description and described the second reference data are mated;
If exist and the inconsistent data of described the second reference data in described the first difference data of description, extract described inconsistent data, generate the second difference data of description.
3. method according to claim 2, is characterized in that, described described geographic position data of description and described the first reference data mated, and comprising:
Extract the reference geographic coordinate in the data of description of described geographic position;
Obtain and fall into that to take described be the center of circle with reference to geographic coordinate, the first reference data in the overlay area that predeterminable range is radius;
It is consistent that judgement falls into whether corresponding with the reference geographic coordinate of the described geographic position data of description description of the description of the first reference data of overlay area.
4. according to the method in claim 2 or 3, it is characterized in that, described described the first difference data of description and described the second reference data mated, comprising:
Extract the reference geographic coordinate in described the first difference data of description;
Obtain and fall into that to take described be the center of circle with reference to geographic coordinate, the second reference data in the overlay area that predeterminable range is radius;
It is consistent that judgement falls into whether corresponding with the reference geographic coordinate of described the first difference data of description description of the description of the second reference data of overlay area.
5. method according to claim 1 and 2, is characterized in that, the position reference data that described position reference data is Traffic Message Channel TMC or be the position reference data of Chinese Real-time Traffic Information RTIC.
6. the testing fixture of a position reference data, is characterized in that, comprising:
The first performance element, for reading in position reference data, obtain the geographic position data of description in described position reference data, and described geographic position data of description comprises with reference to geographic coordinate and corresponding description thereof;
The second performance element, obtain the map datum identical with described position reference data overlay area for the position reference data obtained according to described the first performance element, generate the first reference data according to described map datum, described the first reference data comprises map geographic coordinate and corresponding description thereof;
The first matching unit, the first reference data that the geographic position data of description that described the first performance element is obtained and described the second performance element generate is mated;
The 3rd performance element, if obtain for the first matching unit, described geographic position data of description exists and the description of the map geographic coordinate of described the first reference data is inconsistent with reference to geographic coordinate, extract described inconsistently with reference to geographic coordinate and description thereof, generate the first difference data of description.
7. device according to claim 6, is characterized in that, also comprises:
The 4th performance element, for obtaining the identical real time GPS floating car data in the first difference data of description overlay area generated with described the 3rd performance element, generate the second reference data according to described GPS floating car data, described the second reference data comprises GPS Floating Car coordinate and corresponding description thereof;
The second matching unit, the second reference data that the first difference data of description that described the 3rd performance element is generated and described the 4th performance element generate is mated;
The 5th performance element, exist and the inconsistent data of described the second reference data if obtain the first difference data of description for described the second matching unit, extracts described inconsistent data, generates the second difference data of description.
8. device according to claim 7, is characterized in that, described the first matching unit comprises:
The first extraction module, for extracting the reference geographic coordinate of described geographic position data of description;
The first acquisition module, fall into for obtaining that to take the reference geographic coordinate that described the first extraction module extracts be the center of circle, the first reference data in the overlay area that predeterminable range is radius;
The first judge module, whether corresponding with the reference geographic coordinate of described geographic position data of description the description for the description that judges the first reference data that falls into overlay area that described the first acquisition module obtains be consistent.
9. according to the described device of claim 7 or 8, it is characterized in that, described the second matching unit comprises:
The second extraction module, for extracting the reference geographic coordinate of described the first difference data of description;
The second acquisition module, fall into for obtaining that to take the reference geographic coordinate that described the second extraction module extracts be the center of circle, the second reference data in the overlay area that predeterminable range is radius;
The second judge module, judge that whether corresponding with the reference geographic coordinate of described the first difference data of description the description of the second reference data that falls into overlay area that described the second acquisition module obtains description be consistent.
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| CN101509783B (en) * | 2009-03-24 | 2011-10-26 | 北京四维图新科技股份有限公司 | Data checking method and device applying to navigation electronic map production |
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