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Method for reducing GPS positioning error and automatic control device based on GPS positioning

A technology of GPS positioning and GPS locator, which is applied in the direction of measuring devices, satellite radio beacon positioning systems, instruments, etc., can solve the problems of complex operation and low degree of automation, and achieve the effect of reducing positioning errors and improving operation efficiency

Active Publication Date: 2017-09-12
CRCC HIGH TECH EQUIP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention can solve the requirements of the operation quality and driving safety of large-scale railway maintenance machinery, but its degree of automation is not high, and the operation is relatively complicated

Method used

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  • Method for reducing GPS positioning error and automatic control device based on GPS positioning
  • Method for reducing GPS positioning error and automatic control device based on GPS positioning
  • Method for reducing GPS positioning error and automatic control device based on GPS positioning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 11

[0117] Example 1.1: Figure 5 It is a schematic diagram of a positioning method according to a preferred embodiment of the method for reducing GPS positioning errors in the first aspect of the present invention, Figure 6 for Figure 5 The calculation schematic diagram of the three-point positioning method of the shown embodiment. In this embodiment, the method for reducing the GPS positioning error includes:

[0118] aa1. Measure the position information five times when the vehicle enters the feature point;

[0119] bb1. Take the measured value as the center of the circle, and use the satellite accuracy value as the radius to make a circle;

[0120] cc1. Take the data where the three measured values ​​are all located at the extreme positions, that is, the centers of the three circles determined by the three measured values ​​are respectively located on the circumferences of the other two circles. ;

[0121] dd1. Calculate the radius of the circumscribed circle of the tri...

Embodiment 12

[0124] Embodiment 1.2: The method for reducing the GPS positioning error is the same as Embodiment 1.1, except that in step aa1, the position information when the vehicle enters the feature point is measured seven times.

Embodiment 13

[0125] Embodiment 1.3: The method for reducing the GPS positioning error is the same as Embodiment 1.1, except that in step aa1, the position information when the vehicle enters the feature point is measured three times.

[0126] More operations are known to those skilled in the art and will not be repeated here.

[0127] The technical solution of the method for reducing GPS positioning error provided by Embodiment 1.1-1.3 includes any combination of the above-mentioned parts, and the simple changes or combinations of the above-mentioned parts and components are still within the protection scope of the present invention.

[0128] The method for reducing the GPS positioning error provided by Examples 1.1-1.3 can effectively reduce the positioning error of the GPS locator, and can simply and effectively improve the operating efficiency of the road maintenance machinery.

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Abstract

The invention discloses a method reducing GPS positioning errors and an automatic control device based on GPS positioning. The method disclosed by the invention comprises steps of measuring at least three times of position information when a vehicle drives into a characteristic point, b3 making a circle by taking the measured value as a center of a circle and taking the satellite precision value as a radius, c3 taking the data, the three time measurement values of which are positioned in a limit position, d3, and calculating a radius of a circumcircle of a triangle constituted by the limit positions of the three time measurement values which are measured for three times. The above steps of a3, b3, c3 and d3 proceed in order. The self-control device based on GPS positioning comprises a GPS positioning device; the GPS positioning device is installed in a driver cab which is internally provided with an industrial control computer; the industrial control computer is connected to a data storage device; and the data storage device is not smaller 500GB. The invention can realize intelligentize operation, greatly reduce labor of the road maintenance worker, effectively save skylight time and has positive impact on improving rail capacity.

Description

technical field [0001] The invention relates to an automatic control device for railway machinery construction operations, belonging to the technical field of railway machinery design and manufacture. Background technique [0002] Railway large-scale track maintenance machinery is used in the post-maintenance period of railway use, which can realize automatic maintenance operations such as tamping, stabilization, and ballast distribution of railway lines. To a certain extent, it saves human resources, saves maintenance time and maintenance costs of railway lines. At the same time, maintenance work with higher precision than manual operation can be realized. Nowadays, the development of high-speed railway is extremely rapid, and the speed of high-speed railway is fast, and the requirements for railway lines are relatively high. Therefore, it is necessary to use simpler, more convenient and faster track maintenance machinery. [0003] The Chinese invention patent with the pu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/40
CPCG01S19/41
Inventor 张世璞王敏狄建郓杨璇
Owner CRCC HIGH TECH EQUIP CORP LTD
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