Supercharge Your Innovation With Domain-Expert AI Agents!

Earthquake early warning method and system for high-speed railway

A high-speed railway and earthquake early warning technology, applied in seismology, seismic measurement, seismic signal recording, etc., can solve the problems of high safety hazards of railway traffic

Inactive Publication Date: 2020-10-20
NANJING UNIV OF SCI & TECH
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The probability of an earthquake is very small, but it is very harmful to the safety of railway traffic

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
  • Earthquake early warning method and system for high-speed railway
  • Earthquake early warning method and system for high-speed railway
  • Earthquake early warning method and system for high-speed railway

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A high-speed railway earthquake early warning system, taking the 2011 Great East Japan Earthquake as an example, includes steps such as figure 2 :

[0034] Step S01: JR EAST, the operator of East Railway in Japan, has deployed many seismic monitoring stations along the Shinkansen.

[0035] Step S02: When the earthquake occurred, the monitoring station located in Shinmachi, Wakudani Town, Miyagi Prefecture measured the acceleration, velocity and displacement time history map when the earthquake wave arrived.

[0036] Step S03: 100 sets of velocity data in the UD direction obtained at a frequency of 100 Hz within one second of receiving the P wave, such as image 3 , record a speed data every 0.01s, and the time corresponding to each data is the sum of the horizontal and vertical time scales. Calculated τ c ≈1.9s, greater than the set threshold of 0.6s, it can be judged that the earthquake is harmful.

[0037] Step S04: Start the early warning, and judge the area aff...

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 discloses an earthquake early warning system and method for a high-speed railway. The earthquake early warning system comprises an earthquake detection table along a high-speed railway for collecting earthquake information, a traction power supply system for controlling train operation, a storage device and a control device. The control device is used for controlling the operation ofall the parts and is connected with external equipment such as an external computer device to realize communication and control. The technical key points of the system comprise the following steps: 1, an earthquake monitoring station along a high-speed railway monitors earthquake waves and judges that the earthquake waves are destructive; 2, the control device sends a power-off instruction to a traction substation in the section; 3, when a train-mounted ATP finds that a pantograph catenary is powered off, a braking instruction is automatically sent out, and the train is stopped emergently; and 4, the earthquake intensity information of the early warning is stored into a historical database. According to the earthquake early warning method, the earthquake early warning time is greatly advanced, and a train can respond to the emergency situation of an earthquake earlier and faster.

Description

technical field [0001] The invention relates to the technical field of high-speed railway environmental disaster early warning, in particular to a high-speed railway earthquake early warning system. Background technique [0002] The probability of an earthquake is very small, but it is very harmful to the safety of railway traffic. The unpredictability and huge destructiveness of its occurrence have greatly tested the stability of infrastructure and the ability of automatic emergency disposal of earthquakes. [0003] High-speed railway earthquake early warning means that after an earthquake occurs, before the seismic wave spreads along the high-speed railway, an early warning message is sent out a few seconds to tens of seconds in advance, the power supply of the train is cut off, and the train is stopped in an emergency to reduce losses. After the earthquake, the P wave travels faster than the S wave, and reaches the fortified area faster than the S wave. [0004] In the ...

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): G01V1/00G01V1/24
CPCG01V1/24G01V1/01
Inventor 胡启洲吴翊恺姚泽宇马超高洁沈悦耿灿欣邓洁仪宋阳
Owner NANJING UNIV OF SCI & TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com