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Geographic height difference algorithm and system

A height difference and algorithm technology, applied in the field of geographic surveying and mapping, can solve problems such as poor accuracy and affecting the quality of geographic height surveying and mapping, and achieve the effects of reducing work difficulty, high calculation accuracy, and simple calculation methods

Active Publication Date: 2021-11-02
QINGDAO JIELIDA GEOGRAPHIC INFORMATION GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the accuracy of existing surveying and mapping methods is poor, which affects the quality of geographic altitude surveying and mapping

Method used

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  • Geographic height difference algorithm and system
  • Geographic height difference algorithm and system
  • Geographic height difference algorithm and system

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Embodiment Construction

[0035] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0036] See Figure 1-2 , the embodiment of the present application provides a geographic height difference algorithm, in which the fourth measurement point, the second measurement point, the fifth measurement point and the sixth measurement point are sequentially distributed along the first direction, and the height difference algorithm is used to measure the The height difference between the second measurement point and the fifth measurement point. The methods include:

[0037] S10, calculating the elevation anomaly change rate α in the direction from the fourth measure...

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Abstract

According to the geographic height difference algorithm and system provided by the invention, firstly, the elevation abnormal change rate alpha GII04-GIIO2 in the direction from the fourth measurement point to the second measurement point and the elevation abnormal change rate alpha GII05-GIIO6 in the direction from the fifth measurement point to the sixth measurement point are calculated; and then according to the elevation abnormal change rate alpha GII04-GIIO2 and the elevation abnormal change rate alpha GII05-GIIO6, the elevation abnormal change rate alpha GII02-GIIO5 from the second measurement point to the fifth measurement point is calculated; and finally, according to the geodetic altitude difference between the second measurement point and the fifth measurement point, the elevation abnormal change rate alpha GII02-GIIO5 and the horizontal distance between the second measurement point and the fifth measurement point, the altitude difference delta H6 between the second measurement point and the fifth measurement point is obtained. The calculation method is simple, the calculation precision is high, and the working difficulty is greatly reduced.

Description

technical field [0001] This application relates to the field of geographic surveying and mapping, in particular to a geographic height difference algorithm and system. Background technique [0002] In the field of geographic surveying and mapping, geographic height difference is an important geographic parameter. Geographic height difference is an important data index for construction and geographic mapping. However, the accuracy of existing surveying and mapping methods is poor, which affects the quality of geographic height surveying and mapping. Contents of the invention [0003] Based on this, it is necessary to provide a geographical height difference algorithm and system for the above technical problems. [0004] A geographic height difference algorithm, in which the fourth measuring point, the second measuring point, the fifth measuring point and the sixth measuring point are sequentially distributed along the first direction, and the height difference algorithm i...

Claims

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Application Information

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IPC IPC(8): G01C5/00G06F17/18
CPCG01C5/00G06F17/18
Inventor 曲维荣傅文祥赵君毅张永生徐玉章李纯洁张涛
Owner QINGDAO JIELIDA GEOGRAPHIC INFORMATION GRP CO LTD