CN112665562A - Land surveying and mapping method for homeland planning - Google Patents
Land surveying and mapping method for homeland planning Download PDFInfo
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- CN112665562A CN112665562A CN202011487384.6A CN202011487384A CN112665562A CN 112665562 A CN112665562 A CN 112665562A CN 202011487384 A CN202011487384 A CN 202011487384A CN 112665562 A CN112665562 A CN 112665562A
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Abstract
The invention discloses a land surveying and mapping method for territory planning, which comprises the steps of early preparation, RTK placement, field measurement, field correction, data transmission and online correction, wherein data acquisition is carried out on fragmentary points, so that an RTK acquires a mobile station of one point every 1s, and then data values obtained by measuring each fragmentary point are stored in a well-established folder in a coordinate mode. The invention relates to the technical field of land surveying and mapping, in particular to a land surveying and mapping method for homeland planning, which comprises the steps of comparing lines in an image with lines in an original map according to line characteristics in the image to display all splicing points of the image, overlapping the splicing points in the image with the splicing points in the original map, determining the overlapping similarity of the splicing points and the splicing points in the original map, comparing and determining the overlapping similarity, taking the current splicing point as a reference point when the similarity of the splicing points is 95%, and utilizing a double correction method of a field and a network to enable measured data to be more accurate and reduce errors between the measured data and actual values.
Description
Technical Field
The invention relates to the technical field of land surveying and mapping, in particular to a land surveying and mapping method for national soil planning.
Background
The territory is the territorial space within the jurisdiction of the national owner and the main right. The system comprises the land, the land water area, the inland water, the territory of the territory, the subsoil and the overhead of the land, the territory, the inland water area, the territory and the ground soil, the territory is convenient to plan when a certain region in the territory is planned, and the territory is required to be measured, wherein the material entity is composed of various natural elements and human factors and is a material foundation or resource for national social and economic development, and places or environments for national survival and various activities.
However, when planning and measuring the homeland, the measured result is not accurate enough, and the correction work is not performed on the result, so that the measured result has a large error with an actual value, and the defect is not improved correspondingly.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a land surveying and mapping method for homeland planning, which solves the problems that the measured result is not accurate enough, no good correction work is carried out on the measured result, and the measured result has a large error with an actual numerical value when the homeland planning is measured at present.
In order to achieve the purpose, the invention is realized by the following technical scheme: a land surveying and mapping method for homeland planning comprises the following steps:
s1, early preparation: establishing a measurement group, knowing the field environment of the territorial surveying and mapping area and the distance of the mapping project, preparing the data of the territorial area, and drawing a drawing to be measured according to the data;
s2, RTK setting: the method comprises the following steps of arranging an RTK host on a hillside with a slightly higher terrain and an open terrain, ensuring that the host can receive more satellites, enhancing signals of a transmitting set chain, adjusting parameters of the host after the host is installed, transmitting data chain signals, inputting corresponding parameters according to an earth drawing, and after an instrument is installed, enabling a measuring group to take charge of a mobile station by one person, connecting a GPS antenna and a data chain antenna, loading a battery, opening a data hand book, and starting an RTK fragment point acquisition program;
s3, field measurement: collecting data of the fragmentary points, enabling the RTK to collect a mobile station of one point every 1-3 s, then storing data values obtained by measuring each fragmentary point in a well-established folder in a coordinate mode, and enabling a specially-assigned person to be responsible for point number and code input work while measuring, so that the attribute of each input fragmentary point is ensured;
s4, field correction: taking the first-level control point as a correction point, if the area and the height difference of a measurement area and the error of the obtained data are large, dividing the area into a plurality of sections, wherein the distance of each section is 500-600 m, and then measuring the section;
s5, data transmission: connecting an RTK (real-time kinematic) handbook with a computer, setting transmission parameters, copying an engineering data file in the RTK handbook into a metal piece hard disk, then opening mapping software in the computer, calling coordinate data in the engineering file, performing graphic editing by using the point attribute, and finishing a drawing;
s6, online correction: obtaining the original lower and map proportion of the piece of homeland, converting the measured map into an image, marking the proportion, reading out line traces and block traces in the image by using a computer terminal, comparing the line features in the image with the lines in the original map to display all splicing points of the image, overlapping the splicing points in the image with the splicing points of the original map, determining the overlapping similarity of the two, comparing and determining the splicing points, and taking the next splicing point as a reference point when the similarity of the splicing points is 95 percent.
Preferably, in step S1, the territorial data includes a channel map, aerial photographs, a traffic map, and an administrative area planning map, and the drawing ratio is 1: 5000-8000.
Preferably, in step S2, the RTK host is set at a middle position of the current day measurement area and is moved still.
Preferably, in step S2, after the RTK fragmentary point collection program is started, the number of satellites is checked, and the number of satellites is kept at 5 or more.
Preferably, in step S3, the measurement staff detects the parameters input by the instrument before performing the collection work of the fragmentary points, and checks the parameters by using the coordinates of the adjacent and set fixed control points.
Preferably, in step S5, each control point must be uniformly distributed, and a communication point is set between each control point and each control point to ensure the accuracy of the measurement.
Preferably, in step S5, the parameters in the RTK handbook are the same as the parameters set in the computer for transmission.
Preferably, in step S6, when the similarity of the splicing points is lower than 90%, the positions of the splicing points are adjusted according to the reference points, and then the positions are modified from the actually measured positions to ensure the accuracy of the measurement.
Advantageous effects
The invention provides a land surveying and mapping method for territory planning, which has the following beneficial effects compared with the prior art:
(1) the land surveying and mapping method for the territory planning comprises the steps of taking a first-level control point as a correction point, dividing a measured region into a plurality of sections with the distance of 500-600 m if the error between the area and the height difference of the region and obtained data is large, measuring the region, converting the measured map into an image, marking the proportion of the image, reading out line marks and block marks in the image by using a computer terminal, comparing the line marks and the block marks according to the line characteristics in the image and the lines in an original map to display all splicing points of the image, overlapping the splicing points in the image and the splicing points of the original map, determining the overlapping similarity of the two, comparing and determining the splicing points, taking a current splicing point as a reference point when the similarity of the splicing points is 95%, and using a double correction method of a field and a network to enable the measured data to be more accurate, the errors of the measured data and the actual numerical values are reduced, and the accuracy of the homeland surveying and mapping is further improved.
(2) The land surveying and mapping method for the homeland planning has the advantages that the land surveying and mapping method can meet surveying and mapping of different environments and terrains through the reasonable method for the homeland surveying and mapping, the surveying and mapping mode is simple, the surveying and mapping efficiency can be improved, convenience is brought to measuring personnel, and further better planning work can be carried out on the homeland.
Drawings
FIG. 1 is a block diagram of a measurement process of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides two technical solutions:
example one
A land surveying and mapping method for homeland planning comprises the following steps:
s1, early preparation: establishing a measurement group, knowing the field environment of the territorial surveying and mapping area and the distance of the mapping project, preparing the data of the territorial area, and drawing a drawing to be measured according to the data;
s2, RTK setting: the method comprises the following steps of arranging an RTK host on a hillside with a slightly higher terrain and an open terrain, ensuring that the host can receive more satellites, enhancing signals of a transmitting set chain, adjusting parameters of the host after the host is installed, transmitting data chain signals, inputting corresponding parameters according to an earth drawing, and after an instrument is installed, enabling a measuring group to take charge of a mobile station by one person, connecting a GPS antenna and a data chain antenna, loading a battery, opening a data hand book, and starting an RTK fragment point acquisition program;
s3, field measurement: collecting data of the fragmentary points, enabling the RTK to collect a mobile station of one point every 1s, then storing data values obtained by measuring each fragmentary point in a well-established folder in a coordinate mode, and ensuring the attribute of each input fragmentary point by a specially-assigned person in charge of point number and code input work during measurement;
s4, field correction: taking the first-level control point as a correction point, if the area and the height difference of a measured area have large errors with the obtained data, dividing the area into a plurality of sections, wherein the distance of each section is 500m, and then measuring the section;
s5, data transmission: connecting an RTK (real-time kinematic) handbook with a computer, setting transmission parameters, copying an engineering data file in the RTK handbook into a metal piece hard disk, then opening mapping software in the computer, calling coordinate data in the engineering file, performing graphic editing by using the point attribute, and finishing a drawing;
s6, online correction: obtaining the original lower and map proportion of the piece of homeland, converting the measured map into an image, marking the proportion, reading out line traces and block traces in the image by using a computer terminal, comparing the line features in the image with the lines in the original map to display all splicing points of the image, overlapping the splicing points in the image with the splicing points of the original map, determining the overlapping similarity of the two, comparing and determining the splicing points, and taking the next splicing point as a reference point when the similarity of the splicing points is 95 percent.
Further, in step S1, the territorial data includes a channel map, aerial photographs, a traffic map, and an administrative area planning map, and the drawing ratio is 1: 5000.
Further, in step S2, the RTK host is set at the middle position of the current day measurement area, and the host is moved still.
Further, in step S2, after the RTK fractional point acquisition program is started, the number of satellites is checked, and the number of satellites is kept at 5 or more.
Further, in step S3, the measurement staff detects the parameters input by the instrument before performing the collection work of the fragmentary points, and checks the parameters by using the coordinates of the adjacent and set fixed control points.
Further, in step S5, each control point must be uniformly distributed, and a communication point is set between each control point and each control point to ensure the accuracy of the measurement.
Further, in step S5, the parameters in the RTK handbook are the same as the parameters set in the computer for transmission.
Further, in step S6, when the similarity of the splicing points is lower than 90%, the positions of the splicing points are adjusted according to the reference points, and then the positions and the actually measured positions are modified to ensure the accuracy of the measurement.
Example two
A land surveying and mapping method for homeland planning comprises the following steps:
s1, early preparation: establishing a measurement group, knowing the field environment of the territorial surveying and mapping area and the distance of the mapping project, preparing the data of the territorial area, and drawing a drawing to be measured according to the data;
s2, RTK setting: the method comprises the following steps of arranging an RTK host on a hillside with a slightly higher terrain and an open terrain, ensuring that the host can receive more satellites, enhancing signals of a transmitting set chain, adjusting parameters of the host after the host is installed, transmitting data chain signals, inputting corresponding parameters according to an earth drawing, and after an instrument is installed, enabling a measuring group to take charge of a mobile station by one person, connecting a GPS antenna and a data chain antenna, loading a battery, opening a data hand book, and starting an RTK fragment point acquisition program;
s3, field measurement: collecting data of the fragmentary points, enabling the RTK to collect a mobile station of one point every 3s, then storing data values obtained by measuring each fragmentary point in a well-established folder in a coordinate mode, and ensuring the attribute of each input fragmentary point by a specially-assigned person in charge of point number and code input work during measurement;
s4, field correction: taking the first-level control point as a correction point, if the area and the height difference of a measured area have large errors with the obtained data, dividing the area into a plurality of sections, wherein the distance of each section is 600m, and then measuring the section;
s5, data transmission: connecting an RTK (real-time kinematic) handbook with a computer, setting transmission parameters, copying an engineering data file in the RTK handbook into a metal piece hard disk, then opening mapping software in the computer, calling coordinate data in the engineering file, performing graphic editing by using the point attribute, and finishing a drawing;
s6, online correction: obtaining the original lower and map proportion of the piece of homeland, converting the measured map into an image, marking the proportion, reading out line traces and block traces in the image by using a computer terminal, comparing the line features in the image with the lines in the original map to display all splicing points of the image, overlapping the splicing points in the image with the splicing points of the original map, determining the overlapping similarity of the two, comparing and determining the splicing points, and taking the next splicing point as a reference point when the similarity of the splicing points is 95 percent.
Further, in step S1, the territorial data includes a channel map, aerial survey pictures, a traffic map, and an administrative area planning map, and the drawing ratio is 1: 8000.
Further, in step S2, the RTK host is set at the middle position of the current day measurement area, and the host is moved still.
Further, in step S2, after the RTK fractional point acquisition program is started, the number of satellites is checked, and the number of satellites is kept at 5 or more.
Further, in step S3, the measurement staff detects the parameters input by the instrument before performing the collection work of the fragmentary points, and checks the parameters by using the coordinates of the adjacent and set fixed control points.
Further, in step S5, each control point must be uniformly distributed, and a communication point is set between each control point and each control point to ensure the accuracy of the measurement.
Further, in step S5, the parameters in the RTK handbook are the same as the parameters set in the computer for transmission.
Further, in step S6, when the similarity of the splicing points is lower than 90%, the positions of the splicing points are adjusted according to the reference points, and then the positions and the actually measured positions are modified to ensure the accuracy of the measurement.
And those not described in detail in this specification are well within the skill of those in the art.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A land surveying and mapping method for homeland planning is characterized in that: the method comprises the following steps:
s1, early preparation: establishing a measurement group, knowing the field environment of the territorial surveying and mapping area and the distance of the mapping project, preparing the data of the territorial area, and drawing a drawing to be measured according to the data;
s2, RTK setting: the method comprises the following steps of arranging an RTK host on a hillside with a slightly higher terrain and an open terrain, ensuring that the host can receive more satellites, enhancing signals of a transmitting set chain, adjusting parameters of the host after the host is installed, transmitting data chain signals, inputting corresponding parameters according to an earth drawing, and after an instrument is installed, enabling a measuring group to take charge of a mobile station by one person, connecting a GPS antenna and a data chain antenna, loading a battery, opening a data hand book, and starting an RTK fragment point acquisition program;
s3, field measurement: collecting data of the fragmentary points, enabling the RTK to collect a mobile station of one point every 1-3 s, then storing data values obtained by measuring each fragmentary point in a well-established folder in a coordinate mode, and enabling a specially-assigned person to be responsible for point number and code input work while measuring, so that the attribute of each input fragmentary point is ensured;
s4, field correction: taking the first-level control point as a correction point, if the area and the height difference of a measurement area and the error of the obtained data are large, dividing the area into a plurality of sections, wherein the distance of each section is 500-600 m, and then measuring the section;
s5, data transmission: connecting the RTK handbook with a computer, setting transmission parameters, copying an engineering data file in the RTK handbook to a metal piece hard disk, opening mapping software in the computer, calling coordinate data in the engineering file, editing a graph by using the point attribute, and finishing a drawing.
S6, online correction: obtaining the original lower and map proportion of the piece of homeland, converting the measured map into an image, marking the proportion, reading out line traces and block traces in the image by using a computer terminal, comparing the line features in the image with the lines in the original map to display all splicing points of the image, overlapping the splicing points in the image with the splicing points of the original map, determining the overlapping similarity of the two, comparing and determining the splicing points, and taking the next splicing point as a reference point when the similarity of the splicing points is 95 percent.
2. A land surveying and mapping method for homeland planning according to claim 1, characterized in that: in the step S1, the territorial data includes a channel map, aerial survey photographs, a traffic map, and an administrative area planning map, and the drawing proportion is 1: 5000-8000.
3. A land surveying and mapping method for homeland planning according to claim 1, characterized in that: in step S2, the RTK host is set at the middle position of the current day measurement area and is moved still.
4. A land surveying and mapping method for homeland planning according to claim 1, characterized in that: in step S2, after the RTK fragmentary point acquisition program is started, the number of satellites is checked, and the number of satellites is kept at 5 or more.
5. A land surveying and mapping method for homeland planning according to claim 1, characterized in that: in step S3, the measurer detects the parameters input by the instrument before performing the acquisition of the fragmentary points, and checks the parameters by using the coordinates of the adjacent and set fixed control points.
6. A land surveying and mapping method for homeland planning according to claim 1, characterized in that: in step S5, each control point must be uniformly distributed, and a communication point is set between each control point and each control point to ensure the accuracy of the measurement.
7. A land surveying and mapping method for homeland planning according to claim 1, characterized in that: in step S5, the parameters in the RTK handbook are the same as the parameters set for transmission in the computer.
8. A land surveying and mapping method for homeland planning according to claim 1, characterized in that: in step S6, when the similarity of the splicing points is lower than 90%, the positions of the splicing points are adjusted according to the reference points, and then the positions and the actually measured positions are modified to ensure the accuracy of the measurement.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532394A (en) * | 2021-05-28 | 2021-10-22 | 昆山市水利测绘有限公司 | Hydraulic engineering surveying and mapping method |
| CN114577191A (en) * | 2022-05-06 | 2022-06-03 | 成都纵横通达信息工程有限公司 | Surveying and mapping data acquisition method and system based on geospatial information data |
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| CN109029333A (en) * | 2018-07-18 | 2018-12-18 | 浙江地科土地勘测规划设计有限公司 | A kind of land area proofreading method |
Non-Patent Citations (2)
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| 蒋飞: "国土测量RTK应用技术特点分析", 《技术与市场》 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532394A (en) * | 2021-05-28 | 2021-10-22 | 昆山市水利测绘有限公司 | Hydraulic engineering surveying and mapping method |
| CN114577191A (en) * | 2022-05-06 | 2022-06-03 | 成都纵横通达信息工程有限公司 | Surveying and mapping data acquisition method and system based on geospatial information data |
| CN114577191B (en) * | 2022-05-06 | 2022-07-12 | 成都纵横通达信息工程有限公司 | Surveying and mapping data acquisition method and system based on geospatial information data |
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