Positioning method of deep open pit based on pseudolite

A positioning method and pseudolite technology, which is applied in the field of high-precision positioning of deep concave open-pit mines based on pseudolite, and can solve the problem of invisible orbiting satellites

Inactive Publication Date: 2010-09-15
BEIHANG UNIV
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  • Abstract
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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 with reference to the accompanying drawings and embodiments.

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

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

[0063] Traditional GPS pseudolites have the same navigation signal frequency as GPS orbiting satellites, so it is easy to reduce the positioning accuracy due to mutual interference. The frequency point of the GPS pseudolite spread spectrum navigation signal among the present invention is selected at 1.8414GHz ("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 10.23MHz. The pseudolite signal is modulated with a navigation message. The content of the ...

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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 in particular relates to a high-precision positioning method for deep concave open-pit mines based on pseudolites. Background technique [0002] With the wide application of GPS satellite positioning system, in many large open-pit mines, GPS positioning system has been used to realize the precise positioning of 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 changed from hillside mining to depression mining. Due to the serious occlusion of the open-air slope, when working in such a deep concave open-pit, the GPS receivers equipped by most mining vehicles and personnel often cannot receive more than four GPS satellite signals at the same time, so they cannot effectively locate. Even if you ca...

Claims

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Application Information

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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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