Positioning device and positioning method of high speed trains

Abstract

The invention discloses a positioning device of high speed trains. The positioning device comprises a power supply module, a GNSS positioning module, a control module, a data port circuit, a radar speed measurement module and an accelerated speed detection module. The power supply module provides power. The GNSS positioning module carries out positioning and uploads information to the control module. The radar speed measurement module detects speed and uploads the speed to the control module. The accelerated speed detection module detects the accelerated speed and uploads the accelerated speed to the control module. The control module positions the high speed trains and communicates with the outside through the data port circuit. The invention also discloses a positioning method of the high speed trains. The method comprises steps of correcting a detection value of a accelerated speed sensor to a high speed train accelerated speed value; judging whether to position a newly built route; calculating an included angle between the high speed trains and the horizontal plane; calculating the ultrahigh value of the outer rail and determining the running position of the high speed trains; and positioning high speed trains. According to the invention, real-time positioning of the high speed trains and real-time acquisition of positions are achieved; and the device and the method are precise in positioning, convenient to maintain and low in cost.

Description

technical field [0001] The invention specifically relates to a high-speed rail positioning device and a positioning method. Background technique [0002] With the development of the country's economy and technology and the improvement of people's living standards, high-speed rail has gradually become the preferred mode of transportation for people's daily travel due to its advantages of fast operation, good comfort, and high cost performance. Because of this, the monitoring of various states of the high-speed rail during its operation has become a top priority. [0003] When the high-speed rail vehicle is running, it needs to locate its own position at any time, so that it can effectively control itself. At present, the most commonly used high-speed rail positioning technology is GPS positioning technology, and GPS positioning technology is by far the most mature positioning technology in the world. However, because the high-speed rail often needs to pass through the tunne...

AI Technical Summary

Problems solved by technology

However, the inertial navigation system has the problem of high cost, and it has accumulated errors, so its positioning accuracy is relatively low during high-speed rail positioning, and the maintenance of the inertial navigation system is also very troublesome

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