CN108917728A - Based on CGCS2000 coordinate transformation programmed method in precise engineering survey - Google Patents
Based on CGCS2000 coordinate transformation programmed method in precise engineering survey Download PDFInfo
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- CN108917728A CN108917728A CN201810443906.9A CN201810443906A CN108917728A CN 108917728 A CN108917728 A CN 108917728A CN 201810443906 A CN201810443906 A CN 201810443906A CN 108917728 A CN108917728 A CN 108917728A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
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Abstract
The invention discloses based on CGCS2000 coordinate transformation programmed method in precise engineering survey, the present invention passes through general accurate surveying and mapping tool first, treats measured zone and carries out region measurement.This measurement process does not need to select specific measuring tool, and directly measurement obtains measurement original value.Then by calling and statistics screening, it will not meet statistical number in measurement original value and screen out, and prevent the influence to entirely measuring.Then left side conversion is carried out by programming language.Measurement method of the present invention converts common survey, statistics screening and programming language, the result based on CGCS2000 coordinate transformation in precise engineering survey is obtained, final result numerical value is accurate, and conversion process is rapid, conducive to the calling during a variety of measuring tools.
Description
Technical field
The invention belongs to field of measuring technique, more particularly to based on CGCS2000 coordinate transformation programming in precise engineering survey
Method.
Background technique
China has vast territory, with a varied topography, and current most cities independent coordinate system is five sixties of eighties of last century
It is established based on national referenced-centric system, is influenced by the limitation of technical conditions at that time and precision of control point, it is difficult to met current
Economic construction demand.
National referenced-centric system, including 54 systems and 80 systems, control net are limited by scientific and technological level at that time, the phase of geodetic control point
It is 10-6 to precision, and with the development of the social economy, the progress of scientific and technological level, the national earth coordinates of CGCS2000 i.e. 2000
The high-precision coordinate system that is enabled as establishing of the Urban Independent Coordinate System of design provides opportunity and platform, geodetic control point
Relative accuracy is 10-7~10-8.The two coordinate system is mutually converted, and since respective precision is different, the coordinate generated to conversion has not
Same requirement：
1) when CGCS2000 earth coordinates are converted to national referenced-centric system, belong to high-precision achievement and converted to low precision.
If conversion coordinate reaches high-precision, it is difficult to have high accordance with national referenced-centric system achievement.
2) when national referenced-centric system coordinate to CGCS2000 convert, belong to low precision achievement to high-precision convert, usually
It is required that conversion coordinate meets with CGCS2000 coordinate as far as possible.
When carrying out coordinate conversion using coincidence point and transformation model, under coincidence point precision and the certain situation of quantity, conversion
Coordinate characteristic can only be reflected by different models.And Coordinate Transformation Models characteristic is obtained, it could be convenient for selecting best transition mould
Type reaches the high-precision or high accordance of conversion coordinate.But coordinate involved in the prior art is converted, and does not account for turning
The precision of coincidence point achievement is changed, but relies on conversion residual error size to determine transformation model, conversion residual error is in same coordinate system
The back substitution error of lower coincidence point, majority of case reflection is coincidence loss, rather than converts coordinate precision.
State Intellectual Property Office disclosed on May 06th, 2015 application No. is CN201510043249.5, entitled seat
The patent of invention for marking transformation model applicability method of discrimination, discloses a kind of Coordinate Transformation Models applicability method of discrimination, step
For：Using the side length difference and angle of cut model of CGCS2000 earth coordinates and national referenced-centric system coordinate, turn to common
Mold changing type generates conversion coordinate and is compared；According to its variable quantity size and variation tendency, examined using side length difference and the angle of cut
Test analysis transformation model characteristic；It is verified with areal two phases GPS control network data, reflects the characteristic of transformation model：
Network data is controlled using GPS, is converted by CGCS2000 earth coordinates and national referenced-centric system, verifying conversion coordinate is special
Property, solving different demands in coordinate conversion, to problem of model selection, solving previous coordinate conversion is entirely by conversion residual error
The problem of evaluating precision, conversion residual precision are estimated to be certain limitation, avoids huge conversion work amount, saves a large amount of expenses
And the time, facilitate the popularization and application of CGCS2000 geodetic coordinate system.
There are following technical problems for the above-mentioned prior art：In precise engineering survey, CGCS2000 coordinate is not carried out with it
Conversion, thus the coordinate precision requirement during being unable to reach precise engineering survey.
Summary of the invention
Present invention seek to address that the above-mentioned problems in the prior art, proposes based in precise engineering survey
CGCS2000 coordinate transformation programmed method improves accurate work by the way that programmed method to be integrated in CGCS2000 coordinate transformation
Coordinate precision in journey measurement process.
In order to achieve the above-mentioned object of the invention, technical scheme is as follows：
Based on CGCS2000 coordinate transformation programmed method in precise engineering survey, include the following steps：
A. measured zone is treated using accurate surveying and mapping tool and carries out region measurement；Measurement is recorded according to longitude and latitude, each
Point is labeled as obtaining measurement original value；
B. the measurement original value in step A is called in into ARCGIS;
C. the measurement original value in step A is selected in ARCGIS;The selection takes statistics to be screened;After screening
To measurement screening value;
D. the measurement screening value in step C is subjected to coordinate transformation;The conversion uses C language or Visual Basic；?
To CGCS2000 coordinate value.
Further, ARCGIS of the present invention converts using projected coordinate system.
Further, ARCGIS of the present invention defines coordinate system when establishing first.
Further, the region in step A of the present invention measures in the following ways：Using all kinds of resolution ratio satellite or
Chromatic image of taking photo by plane carries out fusion treatment to satellite or panchromatic image of taking photo by plane.
Further, the concrete operations of coordinate transformation are in step D of the present invention：
A. the online heterogeneous measuring instrument is placed in heterogeneous system, is obtained twice or the particle image of multiple exposure；
B. the actual size of single pixel in particle image is determined；
C. effective particle is determined；
D. the center-of-mass coordinate of same particle is scaled actual length coordinate with the actual size of the step b single pixel obtained
(xt, i, yt, i) and (xt+ △ t, i, yt+ △ t, i).
Beneficial effects of the present invention：
（One）The present invention passes through general accurate surveying and mapping tool first, treats measured zone and carries out region measurement.This was measured
Journey does not need to select specific measuring tool, and directly measurement obtains measurement original value.Then it is screened by calling with statistics, it will
Statistical number is not met in measurement original value to screen out, and prevents the influence to entirely measuring.Then it is carried out by programming language
Left side conversion.Measurement method of the present invention converts common survey, statistics screening and programming language, has obtained base
In precise engineering survey CGCS2000 coordinate transformation as a result, final result numerical value is accurate, conversion process is rapid, is conducive to a variety of
Calling during measuring tool.
（Two）All kinds of acquisition platforms, various times, all kinds of resolution ratio can be used in the color data source of fusion treatment of the present invention
Chromatic image, reduce data buying threshold and cost, expand the range that data utilize, efficiently use miscellaneous satellite
Image resource；To fused fusion evaluation carry out Classification and Identification, will be unable to identification atural object, as photo control point have it is important
The atural object of location information carries out field operation digital mapping, can enhance topographic map and present to the emphasis of importantly object, also avoids pair
Field operation mapping within the scope of full figure, reduces field process amount, improves into figure efficiency；Meanwhile fused chromatic image, both had
There is higher resolution ratio, and there is color information, so that the Objects recognition and collection effect of topographic map are more preferable.
Specific embodiment
The present invention is described in further detail below with reference to embodiment, embodiments of the present invention are not limited thereto.
Embodiment 1
Based on CGCS2000 coordinate transformation programmed method in precise engineering survey, include the following steps：
A. measured zone is treated using accurate surveying and mapping tool and carries out region measurement；Measurement is recorded according to longitude and latitude, each
Point is labeled as obtaining measurement original value；
B. the measurement original value in step A is called in into ARCGIS;
C. the measurement original value in step A is selected in ARCGIS;The selection takes statistics to be screened;After screening
To measurement screening value;
D. the measurement screening value in step C is subjected to coordinate transformation;The conversion uses C language or Visual Basic；?
To CGCS2000 coordinate value.
Further, ARCGIS of the present invention converts using projected coordinate system.
Further, ARCGIS of the present invention defines coordinate system when establishing first.
Further, the region in step A of the present invention measures in the following ways：Using all kinds of resolution ratio satellite or
Chromatic image of taking photo by plane carries out fusion treatment to satellite or panchromatic image of taking photo by plane.
Further, the concrete operations of coordinate transformation are in step D of the present invention：
A. the online heterogeneous measuring instrument is placed in heterogeneous system, is obtained twice or the particle image of multiple exposure；
B. the actual size of single pixel in particle image is determined；
C. effective particle is determined；
D. the center-of-mass coordinate of same particle is scaled actual length coordinate with the actual size of the step b single pixel obtained
(xt, i, yt, i) and (xt+ △ t, i, yt+ △ t, i).
Embodiment 2
Based on CGCS2000 coordinate transformation programmed method in precise engineering survey, include the following steps：
A. measured zone is treated using accurate surveying and mapping tool and carries out region measurement；Measurement is recorded according to longitude and latitude, each
Point is labeled as obtaining measurement original value；
B. the measurement original value in step A is called in into ARCGIS;
C. the measurement original value in step A is selected in ARCGIS;The selection takes statistics to be screened;After screening
To measurement screening value;
D. the measurement screening value in step C is subjected to coordinate transformation;The conversion uses C language or Visual Basic；?
To CGCS2000 coordinate value.
Embodiment 3
Based on CGCS2000 coordinate transformation programmed method in precise engineering survey, include the following steps：
A. measured zone is treated using accurate surveying and mapping tool and carries out region measurement；Measurement is recorded according to longitude and latitude, each
Point is labeled as obtaining measurement original value；
B. the measurement original value in step A is called in into ARCGIS;
C. the measurement original value in step A is selected in ARCGIS;The selection takes statistics to be screened;After screening
To measurement screening value;
D. the measurement screening value in step C is subjected to coordinate transformation;The conversion uses C language or Visual Basic；?
To CGCS2000 coordinate value.
Further, the concrete operations of coordinate transformation are in step D of the present invention：
A. the online heterogeneous measuring instrument is placed in heterogeneous system, is obtained twice or the particle image of multiple exposure；
B. the actual size of single pixel in particle image is determined；
C. effective particle is determined；
D. the center-of-mass coordinate of same particle is scaled actual length coordinate with the actual size of the step b single pixel obtained
(xt, i, yt, i) and (xt+ △ t, i, yt+ △ t, i).
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is all according to
According to technical spirit any simple modification to the above embodiments of the invention, equivalent variations, protection of the invention is each fallen within
Within the scope of.
Claims (5)
1. based on CGCS2000 coordinate transformation programmed method in precise engineering survey, it is characterised in that：Include the following steps：
A. measured zone is treated using accurate surveying and mapping tool and carries out region measurement；Measurement is recorded according to longitude and latitude, each
Point is labeled as obtaining measurement original value；
B. the measurement original value in step A is called in into ARCGIS;
C. the measurement original value in step A is selected in ARCGIS;The selection takes statistics to be screened;After screening
To measurement screening value;
D. the measurement screening value in step C is subjected to coordinate transformation;The conversion uses C language or Visual Basic；?
To CGCS2000 coordinate value.
2. as described in claim 1 based on CGCS2000 coordinate transformation programmed method in precise engineering survey, it is characterised in that：
The ARCGIS converts using projected coordinate system.
3. as described in claim 1 based on CGCS2000 coordinate transformation programmed method in precise engineering survey, it is characterised in that：
The ARCGIS defines coordinate system when establishing first.
4. according to any one of claims 1 to 3 be based on CGCS2000 coordinate transformation programmed method in precise engineering survey,
It is characterized in that：Region measurement in step A is in the following ways：Satellite using all kinds of resolution ratio or chromatic image of taking photo by plane
Fusion treatment is carried out to satellite or panchromatic image of taking photo by plane.
5. according to any one of claims 1 to 3 be based on CGCS2000 coordinate transformation programmed method in precise engineering survey,
It is characterized in that：The concrete operations of coordinate transformation are in step D：
A. the online heterogeneous measuring instrument is placed in heterogeneous system, is obtained twice or the particle image of multiple exposure；
B. the actual size of single pixel in particle image is determined；
C. effective particle is determined；
D. the center-of-mass coordinate of same particle is scaled actual length coordinate with the actual size of the step b single pixel obtained
(xt, i, yt, i) and (xt+ △ t, i, yt+ △ t, i).
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070052951A1 (en) * | 2004-05-18 | 2007-03-08 | Leica Geosystems Ag | Method and apparatus for ground-based surveying in sites having one or more unstable zone(s) |
| CN104598746A (en) * | 2015-01-27 | 2015-05-06 | 国家测绘地理信息局大地测量数据处理中心 | Applicability discrimination method for coordinate transformation model |
| CN105738648A (en) * | 2016-04-19 | 2016-07-06 | 中国科学院过程工程研究所 | Method for on-line measuring particle speed in polyphase system |
-
2018
- 2018-05-10 CN CN201810443906.9A patent/CN108917728A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070052951A1 (en) * | 2004-05-18 | 2007-03-08 | Leica Geosystems Ag | Method and apparatus for ground-based surveying in sites having one or more unstable zone(s) |
| CN104598746A (en) * | 2015-01-27 | 2015-05-06 | 国家测绘地理信息局大地测量数据处理中心 | Applicability discrimination method for coordinate transformation model |
| CN105738648A (en) * | 2016-04-19 | 2016-07-06 | 中国科学院过程工程研究所 | Method for on-line measuring particle speed in polyphase system |
Non-Patent Citations (5)
| Title |
|---|
| 刘丽娟 等: ""浅谈ARCGIS 在地理国情普查项目中的应用"", 《世界有色金属》 * |
| 李娜 等: ""基于ArcGIS的CGCS2000坐标转换"", 《城市勘测》 * |
| 李平 等: ""ArcGIS 中几种坐标系转换方法的应用研究"", 《城市勘测》 * |
| 杨战辉 等: ""浅谈ARCGIS 中地图投影和坐标换算"", 《测绘技术装备》 * |
| 谢艳玲 等: ""基于ArcGIS 的1980 西安坐标系到2000国家坐标系的转换研究"", 《测绘与空间地理信息》 * |
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