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Positioning method of deep open pit based on pseudolite

A positioning method and pseudolite technology are applied in the field of high-precision positioning of deep concave open pit mines based on pseudolites, and can solve problems such as invisible orbital satellites.

Inactive Publication Date: 2013-01-30
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the positioning problem caused by the invisible orbit satellite in the mine pit, and propose a deep concave open-pit mine positioning method based on pseudolite

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  • Positioning method of deep open pit based on pseudolite
  • Positioning method of deep open pit based on pseudolite
  • Positioning method of deep open pit based on pseudolite

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Embodiment Construction

[0060] The present invention will be further described in detail below with reference to the drawings and embodiments.

[0061] The invention is a method for positioning a deep concave open-pit mine based on pseudolites, and the process is as follows figure 1 As shown, including the following steps:

[0062] Step 1: Select the navigation signal of GPS pseudolite in the pseudolite network.

[0063] Traditional GPS pseudolites and GPS orbiting satellites have the same frequency of navigation signals, so it is easy to cause the positioning accuracy to drop due to mutual interference. The frequency point of the GPS pseudolite spread spectrum navigation signal in the present invention is selected at 1.8414 GHz (the "amateur, radio navigation and positioning frequency band" in the "Regulations on Radio Frequency Division of the People's Republic of China"), and the spread code rate is 10.23 MHz. The pseudolite signal modulates a navigation message. The content of the message mainly includ...

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Abstract

The invention discloses a positioning method of a deep open pit based on a pseudolite, comprising the following steps of: 1. selecting a navigation signal of a GPS (Global Position System) pseudolite in a pseudolite network; 2. determining a geometrical layout of the pseudolite network; 3. carrying out high-precision time synchronization on the pseudolite network; 4. emitting the navigation signal by the pseudolite; 5. receiving the navigation signal by a positioning receiver and carrying out positioning clearing; and 6. carrying out dispatching control by a dispatching control system. The invention overcomes the defects of serious shielding of the deep open pit, realizes pit positioning by adopting the pseudolite, controls the physical position of a pseudolite system and improves the geometrical precision and the positioning precision.

Description

Technical field [0001] The invention belongs to the technical field of radio navigation and positioning, and specifically relates to a high-precision positioning method for a deep concave open-pit mine based on pseudolites. Background technique [0002] With the widespread application of GPS satellite positioning systems, in many large open-pit mines, GPS positioning systems have been used to accurately locate various mining vehicles and construction workers, which has greatly promoted the efficient operation and safe production of mines. effect. At present, a large number of large and medium-sized open-pit mines in my country have turned from hillside mining to depression mining. Due to the severe obstruction of the open-pit slope, when operating in such deep-pit open-pit mines, the GPS receivers equipped by most mining vehicles and personnel often cannot receive more than four GPS satellite signals at the same time, and thus cannot effectively locate. Even if it can barely re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/42G01S19/35
Inventor 耿生群杨再秀黄智刚农晓东卢松涛李岑郭振扬陈夏兰
Owner BEIHANG UNIV
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