CN100439865C - Geographic space conversion - Google Patents
Geographic space conversion Download PDFInfo
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- CN100439865C CN100439865C CNB2004100618354A CN200410061835A CN100439865C CN 100439865 C CN100439865 C CN 100439865C CN B2004100618354 A CNB2004100618354 A CN B2004100618354A CN 200410061835 A CN200410061835 A CN 200410061835A CN 100439865 C CN100439865 C CN 100439865C
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Abstract
The present invention relates to a geographic space conversion method which is used for processing space information. In the method, firstly, the space information is divided into a plurality of geographic positions by preprocessing; coordinate values of vertexes of the geographic positions are converted to establish a geographic position data list in which geographic position codes, geographic position names and geographic position vertex coordinate values are contained; subsequently, a point position is substituted, and which geographic position range does the point position fall upon is judged; finally, the geographic position corresponding to the point position is revealed in a word mode or a sound mode to reach the purpose of correctly revealing geographic position information of the point position by words, sound or others instead of figures.
Description
Technical field
The present invention relates to a kind of geographical space conversion method, particularly relating to a kind of Using geographic information system (GIS) and stellar-based global-positioning system (GPS) is the method in actual geographic position as the tracking and managing of mobile carrier and with space coordinate conversion.
Background technology
Usually, Geographic Information System (Geographic Information Systems, GIS) be based on infotech, can carry out the integration type system of foundation, access, analysis, management and the displaying of spatial data, it does not belong to a kind of independently technology, is that the technology elite in a plurality of fields such as the mapping of collection computing machine, remote sensing, data base administration and computer-aided design (CAD) forms.It mainly is to handle and represent every spatial information with graphics mode, convert the geodata of real world to clear and definite map location through digitizing, be stored in the numerical map file, these numerical maps clearly write down the coordinate figure and the correlation attribute value in every geographic position with space and attribute data.
(Global PositioningSystem GPS) is used in commercial uses such as carrier navigation and monitoring, directly is presented on the numerical map after utilizing GPS to orient the position and this Geographic Information System (GIS) is often in conjunction with stellar-based global-positioning system.Also can expand more applications by this geography information, for example route guidance, searching destination etc.Abroad particularly in the GPS navigation equipment of the U.S. and Japan employed geography information very detailed, from the street name to the refuelling station, landmark point such as bank, school can easily seek.
Aspect known technology, general this GPS navigation equipment all has been widely used in vehicle, aircraft, boats and ships or even individual's the navigation, and also pattern is present in the electronic product that personal digital assistant (PDA), mobile phone or mobile computer etc. are easy to carry about with one separately.Yet by known technology as can be known in this GPS navigation equipment shown position information mostly be once latitude coordinate values and this numerical value and be not easy to allow the people understand its actual geographic position.Though and GPS navigation equipment can be added in the coordinate cover on the numerical map to demonstrate its relative position, but still need manually by interpretation one by one on the map, therefore if coordinate figure can be automatically converted near a more significant geographic position name (for example certain intersection, the department store) not only is convenient to carry out analyzing and processing for computing machine, so also meet general people's use habit.And some GPS navigation equipment usually can be changed corresponding geographic position with a rectangular extent, though simple again soon, most geographic ranges all is not the rectangle of a rule, so the position display that makes the mistake of regular meeting, and impracticable.
And this GIS and GPS also are applied to the tracking of vehicle or fleet and send in the management system, but in present existing systems, only merely the data recording such as the coordinate of advancing, time and speed of vehicle are got off mostly, if will therefrom analyze its travel route, start-stop place, process number of times further, perhaps judge whether to depart from unusual conditions such as route, or even relatively during concerning between the variable quantity of running time, speed and the position, directly analyze and to make call processing pragram too complicated by these original coordinates data.And must be again go one by one to judge that by coordinate the position certainly will waste a large amount of operation time if every execution is just once analyzed, cause the load of system host overweight.
Summary of the invention
By last, the application is the above-mentioned existing GPS navigation equipment of solution and tracking, the inconvenience and the defective of sending management system to have, and a kind of geographical space conversion method is proposed, can be actual geographic position with space coordinate conversion, and can be widely used in other GIS system relevant with GPS, it is reasonable in design and can effectively be apt to above-mentioned defective.
Fundamental purpose of the present invention provides a kind of Word message that the correct geographic position of mobile carrier (vehicle or fleet) can initiatively be provided in the mobile carrier tracing management system, can allow management system carry out the geographical space conversion method of the analysis of carrier behavior detecting and unusual condition automatically.
For achieving the above object, the invention provides a kind of geographical space conversion method, in order to handling a spatial information, comprising following step: cut apart this spatial information and become a plurality of geographic position; Define code, title and the scope thereof in described geographic position; Set up a geographic position data table, comprise the coordinate figure on defined geographic location code, geographic position name and scope summit, geographic position; Set up the priority in described geographic position; Substitution is position a bit; Utilize to calculate this point position and the number of hits on each border, described geographic position and judge that this point drops in the scope in which geographic position; And represent the highest geographic position name of this point pairing priority in position.
For achieving the above object, major technique of the present invention is characterised in that provides a kind of geographical space conversion method, has a spatial information in the method, its method is the preposition geographic position that this spatial information becomes a plurality of circles, rectangle or irregular polygon of cutting apart, and change the geographic coordinate values on the summit in this geographic position, to set up a geographic position data table, comprise the geographic coordinate values on geographic location code, geographic position name, a plurality of summits and the priority in geographic position in it; Then dynamically receive to the coordinate figure of a little less position again, to judge whether the position is in a certain geographic position in this some position; Cooperate the map image mode to represent the spatial information of this some position with literal or voice at last with respect to this geographic position, this geographic position can be from ordering a position, overpass, charge station, rest station, national highway mileage, provincial highway mileage, county road mileage, street, lane, lane, intersection, refuelling station, government bodies, school, buildings, famous shop, tourist attractions, or county, city, township, town, village, Li Jie.Because of all spatial informations all pre-process be divided into can be overlapped, intersect or adjacent geographic location area, therefore management system can be analyzed mobile alignment, direction, position or the unusual condition situation of this some position apace, and reaches the effect that correctly shows the geographical location information of this some position with literal or speech form.
Another technical characterictic of the present invention is to provide above-mentioned geographical space conversion method, judge wherein whether this some position is arranged in the determination methods in a certain geographic position, at first the coordinate figure by this mobile carrier extends a straight line to either direction, calculate the number of hits on each border in this straight line and this geographic position, if odd number then this mobile carrier is arranged in this geographic position, if even number then this mobile carrier is positioned at outside this geographic position, get the highest geographic position of priority at last with as the geographic position at this mobile carrier place and write down this geographic location code, so that the effect that provides system to analyze automatically to be provided.
This some position of above-mentioned judgement is the step that is positioned at which geographic position scope, also comprises: the visual location distribution situation of this linearly extended direction is selected to data less side's level or vertical the extension; Do contrast fast with the coordinate figure of each border vertices of geographic position and the coordinate figure of institute substitute point position, the border that does not comprise this substitute point position between two summits is fallen in screening, to reduce the number of times of judging whether this straight line and each border, geographic position intersect.
Description of drawings
Fig. 1 is the configuration diagram of preferred embodiment of the present invention;
Fig. 2 is a management system block schematic diagram of the present invention;
The application picture view that Fig. 3 shows for the embodiment of the invention;
Fig. 4 is a schematic flow sheet of the present invention;
Fig. 5 judges the first example figure of mobile carrier position for the present invention;
Fig. 6 judges the second example figure of mobile carrier position for the present invention;
Fig. 7 calculates the first example figure of two intersection point of line segments coordinates for the present invention; And
Fig. 8 calculates the second example figure of two intersection point of line segments coordinates for the present invention.
Number in the figure:
1 management system
2 mobile carriers
3 GPS (GPS)
11 communication modules
12 pre-process modules
13 information issuing module
14 data storage modules
15 display modules
Embodiment
Reach technology, means and the effect that predetermined purpose is taked in order to enable further to understand the present invention, see also following about detailed description of the present invention and accompanying drawing, believe purpose of the present invention, feature and characteristics, go deep into and concrete understanding when getting one thus, yet accompanying drawing only provides reference and explanation usefulness, is not to be used for the present invention is limited.
At first the present invention is with the embodiment of a tracing management system as geographical space conversion method of the present invention, so that implementation of the present invention to be described, sees also shown in Figure 1ly, is the configuration diagram of a tracing management system.And Fig. 2 is the block schematic diagram of this tracing management system.When applying the present invention in the tracing management system 1 of a mobile carrier, its mobile carrier 2 must will dispose GPS (GPS) 3, as global position system 31, mobile telephone base station positioning system 32 etc., and this mobile carrier 2 can be vehicle, as automobile, locomotive, electric car, train or flying instrument ... but or the like the mobile carrier of carrying people or article, also can be autonomous device, as PDA(Personal Digital Assistant), mobile phone, palmtop computer or portable computer ... or the like, in this GPS (GPS) but have the geography information of a displayed map image in 3, can use a Geographic Information System (GIS) 4 and represent this map image.
In tracing management system 1, can be divided at least one communication module 11, a pre-process module 12, an information issuing module 13, at least one data storage module 14 and at least one display module 15, each module can be divided the work independently working, and can increase, reduce or substitute wherein arbitrary module on demand, and can be with all module collections at the same system platform, or be dispersed into a plurality of different system platforms, to increase the reaction treatment degree of system, the risk when dispersant system crashes.
Wherein this communication module 11 mainly is responsible for utilizing this GPS (GPS) geographic coordinate values of these mobile carrier 2 positions to be done the reception or the transmission of relevant information.And these pre-process module 12 main geographic coordinate Value Datas of being responsible for handling this mobile carrier 2 position that returns, and carry out the preposition dividing processing of this map image and the preposition definition process of landmark locations in advance, so that when receiving this mobile carrier 2, can analyze immediately and convert general colloquial Word message to, to avoid follow-up re-treatment.
As can on map image, showing No. 0239 car among Fig. 3, car plate XO-383 position, or in vehicle Real-time and Dynamic and historical record inventory travel southwards with the speed of 19 kilometers of speed per hours in the Word message such as the Yu Lin County Tu Ku town of these mobile carrier 2 positions of demonstration.This pre-process module 12 also can be according to the abnormal behaviour of this mobile carrier 2 of rule judgment of various prior foundation, as hypervelocity, overtime stop, course mistake or the like, also can notify this mobile carrier 2 preferable course according to traffic.
Wherein this information issuing module 13 is primarily aimed at the data that this pre-process module 12 finishes dealing with and initiatively sends this display module 15 in the mode that triggers (Trigger).And related datas such as the residence time of advance record and each landmark locations such as the geographic coordinate values of these data storage module 14 main responsible all these mobile carriers 2 of storage, speed per hour, direction and course.And these display module 15 main demonstrations of being responsible for the related data of this map image and this mobile carrier.
See also shown in Figure 4ly, be schematic flow sheet of the present invention.Geographical space conversion method of the present invention mainly comprises the following steps:
Step 101: after at first the present invention does the conversion of some Region Segmentation in advance with the spatial information of this map image, to help the carrying out of subsequent analysis, promptly a plurality of geographic position according to each regional representative are divided into rectangle not of uniform size or irregular polygon etc.And this geographic position can be anywhere, as ordering a position, overpass, charge station, rest station, national highway mileage, provincial highway mileage, county road mileage, street, lane, lane, intersection, refuelling station, government bodies, school, buildings, famous shop, tourist attractions certainly, or county, city, township, town, village, Li Jie ... or the like.
Step 102: then define code, title or the priority in this geographic position, and the polygon scope in this geographic position; And this scope can be overlapped, crossing or adjacent.Must be contained in the geographic position scope in county, city as the geographic position scope of school, and intersecting of road must include an intersection, the geographic position scope in a plurality of counties, city then must overlappingly be passed through in the boundary line of national highway highway mileage ... or the like.
Step 103: after the geographic position in this spatial information definition finished, the polygon vertex of this geographic position scope can be converted to geographic coordinate values, and set up a geographic position data table, comprise the geographic coordinate values on geographic location code, geographic position name and a plurality of summits.Its priority can be implied in the code in addition.The exemplary applications that is geographic position tabulation as shown in table 1 below:
| Code | Title | Summit 1 | Summit 2 | Summit 3 | Summit 4 |
| 2 | Feng Chia University | 166802.7410 | 2632986.0253 | 169813.5124 | 2638012.4312 |
| 3 | Wen Hualu | 183205.5324 | 2652531.2527 | 183426.4163 | 2657784.1105 |
| 4 | Meet the first road | 216812.8626 | 2683926.0964 | 216935.8626 | 2687850.5541 |
| ... | ... | ||||
| 10 | McDonald | 175455.5245 | 2606565.5105 | 177874.3467 | 2625635.0961 |
| 11 | Green square | 206540.6402 | 2705210.0431 | 206783.1465 | 2762346.6323 |
| 12 | The lucky star road | 193365.6548 | 2680565.5457 | 193732.2434 | 2686733.3541 |
| ... | ... |
Step 104: dynamically receive the some position 2 that also substitution one needs to judge the geographic position, judge again this some position 2 is to be arranged in which geographic position.This some position 2 is made of a geographic coordinate values, can be the position that the mobile carrier of GPS (GPS) is used in dynamic reception one, or is imported into the some position in need judgement geographic position by other system.
And judge that this some position 2 is the methods that are arranged in arbitrary geographic position, be that coordinate figure by this some position 2 extends a straight line to either direction, calculate the number of hits on this straight line and this each border, geographic position, if odd number then this some position 2 is arranged in this geographic position, if even number then is positioned at outside this geographic position this some position 2.Example as shown in Figure 5, wherein extend straight line by P, Q to either direction at 2 respectively, and three borders in P point and this geographic position are crossing, so the P point is in this geographic position, and intersect on two borders in Q point and this geographic position, so the Q point is outside this geographic position.
The present invention also designs following rule at the counting yield that improves system:
1., can simplify the mathematical function of calculating and this border, geographic position number of hits at first along the X-axis horizontal-extending, or along the vertical straight line that extends of Y-axis;
2. the direction that decides this straight line to extend by the upper and lower, left and right side in this geographic position by this mobile carrier position again is to reduce the number of times that calculates; And
3. calculate this straight line and whether intersect with the border in this geographic position, can be directly earlier with its coordinate figure contrast, after major part dropped on extraneous this geographic position rapid screening and fall, calculate with mathematical function one by one at the geographic position in the scope again and whether intersect.
Shown in the example of Fig. 6, it is example that a straight line that extends is vertically upward made with P point (P1 that is taken as, P2, P3, P4 point among the figure) respectively in this some position 2, line segment AB is one of them border in the geographic position that will judge, and the four angular coordinate of this line segment AB can be divided into gamut 4 zones, wherein:
A. if the P x coordinate of ordering not at the left and right sides of line segment AB coordinate x1, between the x2 (the 1st district), shown in the P1 point, then two line segments must be non-intersect;
B. if the P y coordinate of ordering greater than the last coordinate y2 (the 2nd district) of line segment AB, shown in the P2 point, then two line segments must be non-intersect;
C. if the P y coordinate of ordering less than the following coordinate y1 (the 3rd district) of line segment AB, shown in the P3 point, then two line segments must intersect;
D. last if the P point is positioned at the 4th district, shown in the P4 point, then must whether intersect with indivedual two line segments that calculate of mathematical function; And
E. exception is handled:
(1) if the P extension line segment of ordering touched two limits, twice of intersection point meter simultaneously when just cutting polygonal end points;
Its intersection point meter was twice when (2) two line segments were overlapping; And
(3) though if the P extension line segment of ordering touches two limits when just passing polygonal end points simultaneously, intersection point is only counted once.
Wherein the calculating of this mathematical function only utilizes two apex coordinates on this each border, geographic position and coordinate that this mobile carrier P is ordered to calculate, and its method has two:
1. calculate AP and AB point-to-point transmission slope (calculates easy, but be subject to the influence of decimal fractions degree of accuracy die be only applicable to the less polygon of area):
A. if identical expression P point is positioned on the line segment AB;
B. if the AP slope represents then that less than AB the P point is positioned at line segment AB below, two line segments have crossing; And
C. if the AP slope represents then that greater than AB the P point is positioned at line segment AB top, two line segments do not have crossing.
2. calculate two intersection point of line segments coordinates (calculating time-consuming but more accurate), as shown in Figure 7:
With
Replace
Replace
Then above-mentioned simplified formula can get:
If extend so that Y-axis is upwards vertical, as shown in Figure 8, then above-mentioned formula can streamline any further into:
A. if the identical P point of then representing with the C point of P point coordinate is positioned on the line segment AB;
B. if P point y coordinate represents then that less than C point y coordinate the P point is positioned at line segment AB top, two line segments do not have crossing;
C. if P point y coordinate represents then that greater than C point y coordinate the P point is positioned at line segment AB below, two line segments have crossing.
Step 105: an override person is got according to its priority in the geographic position that will meet at last, as title or code in 2 geographic locations, this some position and be recorded in this storage module 14, and in this display module 15, represent this point 2 spatial information with respect to this geographic position in modes such as literal or voice.For example show that with mode word this some position 2 is positioned at relevant informations such as the code in immediate geographic position, title, mileage number.
But above-mentioned disclosed accompanying drawing, explanation only are embodiments of the invention, and other all improvement that all those of ordinary skill of being familiar with this technology are done according to above-mentioned explanation still belongs in the spiritual claim of invention of the present invention.
Claims (9)
1. geographical space conversion method, in order to handling a spatial information, comprising following step:
Cut apart this spatial information and become a plurality of geographic position;
Define code, title and the scope thereof in described geographic position;
Set up a geographic position data table, comprise the coordinate figure on defined geographic location code, geographic position name and scope summit, geographic position;
Set up the priority in described geographic position;
Substitution is position a bit;
Utilize to calculate this point position and the number of hits on each border, described geographic position and judge that this point drops in the scope in which geographic position; And
Represent the highest geographic position name of this point pairing priority in position.
2. geographical space conversion method as claimed in claim 1, wherein this spatial information is a numerical map image, and uses a Geographic Information System and represent this numerical map image.
3. geographical space conversion method as claimed in claim 1, wherein this geographic position is the scope that a circle, a rectangle or an irregular polygon are constituted.
4. geographical space conversion method as claimed in claim 1, wherein this geographic position can be from ordering a position, overpass, charge station, rest station, national highway mileage, provincial highway mileage, county road mileage, street, lane, lane, intersection, refuelling station, government bodies, school, buildings, famous shop, tourist attractions, or county, city, township, town, village, Li Jie.
5. geographical space conversion method as claimed in claim 1, wherein boundary line that this summit and summit constituted or boundary surface can be overlapped, crossing or adjacent.
6. geographical space conversion method as claimed in claim 1, wherein the some position of institute's substitution can be the coordinate figure that uses GPS that one mobile carrier position is provided.
7. geographical space conversion method as claimed in claim 1 judges that wherein this some position is in the step that drops in which geographic position scope, also comprises the following steps:
Coordinate figure by institute substitute point position extends a straight line to either direction;
Calculate the number of hits on each border in this straight line and this geographic position, if odd number then drops in this geographic position scope this some position, if even number then drops on outside this geographic position scope this some position;
With the geographic position in the scope according to its priority person that gets the override; And
Pass title or code in this geographic location, some position back.
8. geographical space conversion method as claimed in claim 7 judges that wherein this some position is in the step that drops in which geographic position scope, also comprises:
The visual location distribution situation of this linearly extended direction is selected to data less side's level or vertical the extension;
Do contrast fast with the coordinate figure of each border vertices of geographic position and the coordinate figure of institute substitute point position, the border that does not comprise this substitute point position between two summits is fallen in screening, to reduce the number of times of judging whether this straight line and each border, geographic position intersect.
9. geographical space conversion method as claimed in claim 1 wherein represents in the step of this some position, can literal or voice represent this point pairing geographic position name.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100618354A CN100439865C (en) | 2004-06-25 | 2004-06-25 | Geographic space conversion |
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| CNB2004100618354A CN100439865C (en) | 2004-06-25 | 2004-06-25 | Geographic space conversion |
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| CN100439865C true CN100439865C (en) | 2008-12-03 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101586963B (en) * | 2009-07-03 | 2011-08-17 | 光庭导航数据（武汉）有限公司 | Map coordinates transformation method based on shape fidelity |
| CN105488066A (en) * | 2014-09-19 | 2016-04-13 | 昆达电脑科技(昆山)有限公司 | Method for creating spatial data base and data structure product of creating spatial data base |
| CN105300373A (en) * | 2015-09-16 | 2016-02-03 | 广州市城市规划勘测设计研究院 | Three-dimensional coordinate conversion method and device |
| CN105300374A (en) * | 2015-09-16 | 2016-02-03 | 广州市城市规划勘测设计研究院 | Three-dimensional coordinate conversion method and system |
| CN107341558A (en) * | 2016-04-28 | 2017-11-10 | 李哲荣 | Multiply the computational methods in path and the computing device and record media using the method altogether |
| CN107622656B (en) * | 2017-09-14 | 2020-08-04 | 王淑芳 | Cross-region data processing method and system for key operation vehicle |
| CN113190009A (en) * | 2021-05-08 | 2021-07-30 | 珠海市一微半导体有限公司 | Method for realizing robot curve virtual wall based on grid map |
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| JPH09138131A (en) * | 1996-09-04 | 1997-05-27 | Aisin Seiki Co Ltd | Measuring apparatus for position coordinate |
| WO1998027535A1 (en) * | 1996-12-18 | 1998-06-25 | Xanavi Informatics Corporation | Map database device |
| US5953722A (en) * | 1996-10-25 | 1999-09-14 | Navigation Technologies Corporation | Method and system for forming and using geographic data |
| WO2003081178A1 (en) * | 2002-03-23 | 2003-10-02 | Philips Intellectual Property & Standards Gmbh | Navigation arrangement based on coordinate fields |
-
2004
- 2004-06-25 CN CNB2004100618354A patent/CN100439865C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09138131A (en) * | 1996-09-04 | 1997-05-27 | Aisin Seiki Co Ltd | Measuring apparatus for position coordinate |
| US5953722A (en) * | 1996-10-25 | 1999-09-14 | Navigation Technologies Corporation | Method and system for forming and using geographic data |
| WO1998027535A1 (en) * | 1996-12-18 | 1998-06-25 | Xanavi Informatics Corporation | Map database device |
| WO2003081178A1 (en) * | 2002-03-23 | 2003-10-02 | Philips Intellectual Property & Standards Gmbh | Navigation arrangement based on coordinate fields |
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