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A multi-job block-assembled mapping method based on free station setup

A method of surveying and mapping, a technology of job blocks, applied in the field of surveying and mapping, which can solve problems such as the inability to achieve rapid surveying and mapping

Active Publication Date: 2016-08-24
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] Technical problem to be solved: Aiming at the deficiencies of the existing technology, the present invention proposes a multi-job block-assembled mapping method based on free station setup, which is used to solve the technical problem that the existing mapping method cannot realize rapid surveying and mapping

Method used

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  • A multi-job block-assembled mapping method based on free station setup
  • A multi-job block-assembled mapping method based on free station setup
  • A multi-job block-assembled mapping method based on free station setup

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Embodiment Construction

[0054] The present invention will be further described below in conjunction with the accompanying drawings.

[0055] This embodiment is carried out in a region of Nanjing City. The area is about 1 square kilometer.

[0056] The coordinates of three public points in the mapping coordinate system are measured by GPS technology in the entire mapping area, which are:

[0057] Q1 (3530967.274, 2230215.656)

[0058] Q2 (3531009.277, 2231159.961)

[0059] Q3 (3530321.597, 2231099.737)

[0060] Such as image 3 , the entire mapping area is divided into 7 job blocks such as A, B, C, D, E, F, and G, and a total of 13 connection points are set between the job blocks, namely L1-L13. Among them, Q1 is located in the A operation block, Q2 is located in the C operation block, and Q3 is located in the E operation block.

[0061] Use the total station to set up a station at a point in the operation block A that is convenient for the observation of the broken parts. Assume the station coo...

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Abstract

The invention discloses a mapping method employing assembly of multiple job blocks based on free station establishment. The mapping method includes the following steps: the coordinates of two or more common points in a finished map coordinate system are measured in a whole mapping area through the GPS (global position system) technology; the whole mapping area is divided into n job blocks, and a connecting point is arranged between every two adjacent job blocks; a job block result map under an independent coordinate system is obtained for each job block through the free station establishment method; all the job block result maps are jointed through the connecting points, so as to obtain a mapping area result map under a transitional coordinate system; a mapping area result map under the finished map coordinate system is obtained through the common points and coordinate transformation. The method has the advantages of few necessary GPS points, avoidance of the mapping control measurement process, as well as short mapping period, and is particularly suitable for mapping in towns, mountainous areas and other areas with intervisibility difficulties.

Description

technical field [0001] The invention belongs to the technical field of surveying and mapping, in particular to a multi-operation block assembled mapping method applied to surveying and mapping work based on free station setup. Background technique [0002] Topographic map surveying and mapping is one of the most important tasks of surveying and mapping, which provides basic geographic information data for construction planning, engineering design, and resource management. [0003] Conventional mapping technology is mainly divided into two steps: control survey and detail survey. At present, the control survey generally adopts the wire form to lay out the map root point, and then erects the total station on the map root point to carry out the detailed measurement. However, this method of using wires to complete the control measurement also has obvious shortcomings, mainly as follows: [0004] (1) The wire point requires a long storage time, and it is easy to be damaged in a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C15/00
CPCG01C15/00
Inventor 于先文王慧青王庆
Owner SOUTHEAST UNIV
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