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.
CN101833103BInactive Publication Date: 2013-01-30BEIHANG UNIV

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
BEIHANG UNIV
Publication Date
2013-01-30
Estimated Expiration
Not applicable Β· inactive patent

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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.
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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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