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A photogrammetry method applied to rtk receiver

A photogrammetry and receiver technology, applied in the field of GPS measurement, to achieve the effect of improving calculation speed, large amount of information, and improving positioning reliability

Active Publication Date: 2019-03-01
SHANGHAI HUACE NAVIGATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, traditional RTK measurement cannot solve non-contact measurement very well, such as measurement in places with serious signal obstruction such as under trees and corners

Method used

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  • A photogrammetry method applied to rtk receiver
  • A photogrammetry method applied to rtk receiver
  • A photogrammetry method applied to rtk receiver

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Embodiment Construction

[0039] In the following description, numerous specific details are given in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without one or more of these details. In other examples, some technical features known in the art are not described in order to avoid confusion with the present invention.

[0040] In order to thoroughly understand the present invention, detailed steps and detailed structures will be provided in the following description, so as to illustrate the technical solution of the present invention. Preferred embodiments of the present invention are described in detail below, however, the present invention may have other embodiments besides these detailed descriptions.

[0041] The present invention provides a photogrammetry method applied to RTK receivers, referring to figure 1 shown, including the following steps:

[0042] Step S1: Enter...

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Abstract

The invention discloses a photogrammetry method used for RTK receivers. The photogrammetry method comprises following steps: image measurement is carried out, wherein a first observing point is selected, a camera is used for taking pictures of a target area from the first observing point, and storing of RTK coordinates and attitude angles is taken as default; a second observing point is selected, the camera is used for taking pictures of the target area from the second observing point, and storing of RTK coordinates and attitude angles is taken as default; imagine point collection is carried out, wherein a characteristic coordinate in the pictures taken from the first observing point is selected, and image coordinates of the same point in the pictures taken from the second observing point are selected; the acquired coordinates are calculated, and distance, geometrical shape, and accuracy are analyzed so as to increase positioning reliability. Advantages of the photogrammetry method are that: acquired data amount and information amount are large; coordinates of any matching points on the images can be calculated; and at the same time, images of the observation movement can be preserved for acquisition checking within the industry.

Description

technical field [0001] The invention relates to the field of GPS measurement, in particular to a photogrammetry method applied to an RTK receiver. Background technique [0002] Traditional RTK (Real-Time Kinematic) is a commonly used GPS measurement method based on satellite navigation technology. It adopts the carrier phase dynamic real-time differential method, which can obtain centimeter-level positioning accuracy in real time. Its appearance brings new technology means for engineering stakeout, topographic mapping, and various control measurements, and greatly improves the efficiency of field operations. However, traditional RTK measurement cannot well solve non-contact measurement, such as measurement in places with severe signal obstruction such as under trees and wall corners. Contents of the invention [0003] The invention provides a photogrammetry method applied to an RTK receiver, comprising the following steps: [0004] Perform image measurement: select the f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C11/04
CPCG01C11/04
Inventor 李忠超刘若尘赵延平高晓寒
Owner SHANGHAI HUACE NAVIGATION TECH