Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Existing railway survey method based on total station

A technology with existing railways and measurement methods, applied to measurement devices, instruments, and the use of wave/particle radiation, etc., can solve problems such as unsatisfactory and single

Inactive Publication Date: 2009-09-23
黄远宏 +1
View PDF0 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, the application of total stations in the measurement of existing railway lines is only used in traverse measurement, railway curve or stakeout measurement, and the measurement method has not changed, and the recording method is still the original manual record, which is simple and single , have not yet got rid of the traditional measurement mode of erecting measuring instruments on the center line of railway lines; at the same time, the corresponding recording software and railway measurement-related data processing applications that are similar to railway engineering surveying cannot meet the requirements of railway engineering surveying

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Existing railway survey method based on total station
  • Existing railway survey method based on total station
  • Existing railway survey method based on total station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Embodiment one: see figure 1 , the present invention is based on the existing railway measuring method of total station, utilizes total station, electromagnetic wave reflection equipment to measure existing railway line,

[0052] Firstly, an electromagnetic wave reflection device is installed at the center of the existing railway line to be tested. The electromagnetic wave reflection device uses a reflective prism, uses a traditional measuring square, sets a forced centering bolt at the center of the measuring square, installs a reflecting prism, and is equipped with an extension rod For use when the measurement line of sight is blocked,

[0053] Secondly, determine the self-position of the total station, measure the measuring prism at the center of the line, and obtain the distance (slant distance), horizontal angle, vertical angle and three-dimensional coordinates (X, Y, H) of the measured line,

[0054] Use a PDA handheld computer to process the measurement data, us...

Embodiment 2

[0065] Embodiment two: see figure 1 , the present embodiment is based on the existing railway surveying method of the total station, and further optimizes the technical solution on the basis of the first embodiment, and specifically adopts the following slope calculation and analysis mathematical model:

[0066] | ( H 1 - H 2 ) / D | > 6 1000

[0067] (where (H 1 -H 2 ) is the height difference between two measuring points, D is the distance between two measuring points)

[0068] Calculate the slope between the two measuring points. When the slope is greater than 6 / 1000, the system will automatically prompt and warn that the distance between the measuring points must not exceed 50 meters.

[0069] At the same time, in order to ensure the point densit...

Embodiment 3

[0073] Embodiment three: see figure 1 , this embodiment is based on the existing railway survey method of the total station, and on the basis of the second embodiment, a curve radius fitting calculation method is further proposed. Since in railway surveying, the point interval of measuring points is generally 20 meters, when performing curve radius fitting calculation, the standard circle equation is used for fitting, according to the standard circle equation in the plane:

[0074] (x-x 0 ) 2 +(y-y 0 ) 2 =R 2 , deformed to get:

[0075] F ( x , y , x 0 , y 0 , R ) = x 2 - 2 xx 0 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an existing railway survey method based on a total station. In the method, the total station and an electromagnetic wave reflection device are adopted to survey an existing railway. The survey method comprises the following steps: firstly arranging the electromagnetic wave reflection device at the center of the existing railway line to be surveyed by virtue of a traditional measuring square ruler; determining position of the total station, and surveying the line center by the electromagnetic wave reflection device to obtain distance (slant distance), horizontal angle and vertical angle of the surveyed line and 3D coordinates of survey points (X, Y and H) of the measured line (slope distance); and then analyzing and calculating the survey data by a PDA, and performing survey on line mileage, center line, traverse, elevation and other railway equipment. The existing railway survey method based on a total station reduces on-track operation times of operators, guarantees safety of surveyors, instruments and equipment, accuracy and reliability of the surveyed data, improves production efficiency of the existing railways, and alleviates labor intensity of the operators.

Description

1. Technical field: [0001] The invention relates to a railway surveying method, in particular to a brand-new existing railway surveying system based on a total station. 2. Background technology: [0002] With the needs of social development, the importance of railway transportation has become more and more prominent. Railway public works equipment is the foundation of railway transportation. The quality of public work equipment management not only affects the efficiency of railway transportation, but also directly relates to driving safety. The purpose of the existing railway survey (survey) is to truly reflect the current situation of the existing railway, to provide scientific and detailed technical basis for the railway transportation production plan for the railway management departments at all levels, and to formulate the large and medium maintenance plan for railway equipment; Provide true and detailed technical data and technical information for major and medium repai...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01B15/00
Inventor 许光宏黄远宏侯建民何功臣
Owner 黄远宏
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com