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

GNSS-assisted inertial measurement track geometrical state rapid measurement system

An inertial measurement and measurement system technology, applied in the field of track measurement, can solve the problems of uneven measurement accuracy, inability to obtain the external geometric state of the track, inability to use sleeper positioning and large machine tamping operations, etc., to achieve easy handling, comprehensive efficiency and precision measured effect

Inactive Publication Date: 2020-11-13
CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of this type of equipment is that it does not depend on the track control network, can perform dynamic measurements, and has high operating efficiency, but the disadvantage is that it cannot obtain the external geometric state of the track, it is difficult to meet the measurement accuracy of long-wave irregularity of the track, and it cannot be used for sleepers Positioning and machine tamping operations
[0006] To sum up, the existing track measurement equipment is more or less restricted and restricted in terms of data acquisition, measurement accuracy, operation efficiency and application environment, and it is difficult to meet the current requirements of my country's rail transit for accurate track installation and high ride comfort. requirements

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
  • GNSS-assisted inertial measurement track geometrical state rapid measurement system
  • GNSS-assisted inertial measurement track geometrical state rapid measurement system
  • GNSS-assisted inertial measurement track geometrical state rapid measurement system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The present invention will be described in detail below in combination with specific embodiments.

[0035] The present invention relates to a kind of track geometric state quick measurement system of GNSS assisted inertial measurement, described system comprises carrying platform and the measuring unit that is arranged on it; Described carrying platform is rail car; Described measuring unit comprises control terminal 9, data acquisition Module 10, GNSS receiver 12 and sensors; the data acquisition module 10 sends measurement instructions to the sensors, receives, stores and time-synchronizes sensor data, and sends the collected data to the control terminal 9 in real time; GNSS receiver 12 receives GNSS signals according to the measurement instructions , and transmit the received positioning information to the data collection module 10 , and then to the control terminal 9 .

[0036] The rail car is a T-shaped rail car, including a longitudinal beam 2 and a cross beam 1 p...

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 a GNSS-assisted inertial measurement track geometrical state rapid measurement system. The system comprises a carrying platform and a measurement unit arranged on the carryingplatform. The carrying platform is a rail car; the measurement unit comprises a control terminal, a data acquisition module, a GNSS receiver and a sensor. The data acquisition module sends a measurement instruction to the sensor, receives, stores and carries out time synchronization on sensor data, and sends acquired data to the control terminal in real time; and the GNSS receiver receives GNSS signals according to the measurement instruction, transmits the received positioning information to the data acquisition module, and then sends the positioning information to the control terminal. According to the invention, the defects or deficiencies of the existing rail measuring equipment in many aspects are overcome, the efficient and accurate measurement of the geometrical state of the rail is realized, and the requirements of rail transit in China on the accurate installation and high smoothness maintenance of the rail at present are met.

Description

technical field [0001] The invention belongs to the technical field of orbit measurement, and in particular relates to a rapid measurement system of orbit geometric state for GNSS assisted inertial measurement. Background technique [0002] The accurate geometric dimensions of the track are the basic conditions to ensure the safe operation of the train. Theoretical research and practical analysis show that high-speed driving can only be realized on a highly smooth track. The key to the establishment and maintenance of high track ride comfort lies in the efficient and accurate measurement of track geometry. [0003] At present, the geometric state of the track is mainly measured by the track inspection trolley. According to different technical principles and measurement modes, track inspection trolleys can be divided into absolute measurement track inspection trolleys and relative measurement track inspection trolleys. Absolute measurement track inspection trolleys usually u...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B61D15/00B61K9/08G01D21/02
CPCB61D15/00B61K9/08G01D21/02
Inventor 任晓春邓川武瑞宏袁永信
Owner CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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