A Real-time Track Broken Detection and Positioning Method Based on Ultrasonic Guided Waves
An ultrasonic guided wave and positioning method technology, which is applied in the re-radiation of sound waves, the analysis of solids using sonic/ultrasonic/infrasonic waves, and radio wave measurement systems, etc. high effect
Active Publication Date: 2017-06-16
杨媛
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The purpose of the present invention is to overcome the defects in the prior art and provide a real-time broken rail detection and positioning system based on ultrasonic guided waves. The position and the size of the damage solve the problem that the existing technology cannot detect and locate the broken rail in real time for a long distance. expensive question
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0030] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0031] refer to figure 1, a real-time broken rail detection and positioning system based on ultrasonic guided waves, which adopts a detection method in which transmitting and receiving positioning nodes and receiving positioning nodes are arranged alternately, and a terminal node is set at one end of the detection area. On the rail, the transmitting and positioning nodes are fixed on the rail The ultrasonic probe on the rail waist transmits the excitation signal, and the excitation signal is converted into a high-power ultrasonic guided wave signal through the piezoelectric ceramics in the ultrasonic probe. Received by the ultrasonic probe, the probe converts the vibration signal into an electrical signal, and the receiving board circuit performs filtering and amplification on the signal, signal characteristi...
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
Login to View More Abstract
The invention discloses a real-time broken rail detection and positioning system based on ultrasonic guided waves. The real-time broken track detection and positioning system based on ultrasonic guided waves is composed of a solar power supply or a wired power supply system, an ultrasonic probe, a transmitting positioning node, and a receiving positioning node , terminal nodes and host computer terminals. The system of the present invention can detect whether the long-distance rail is damaged or broken in real time, and can detect the precise position of the broken rail and the size of the damage, so as to solve the problem that the existing technology cannot detect and locate the long-distance broken rail in real time. The ultrasonic guided wave signal of the medium realizes the transmission of the alarm data of each node, and solves the problem of poor signal and high cost of the existing communication technology.
Description
technical field [0001] The invention belongs to the technical field of nondestructive testing, and relates to a real-time broken rail detection and positioning system based on ultrasonic guided waves. Background technique [0002] Since the birth of rail transit, broken rails have always been the primary problem affecting the safety of rail transit. With the development of the economy, the trend of high-speed railway passenger transportation and heavy-duty freight transportation is becoming more and more obvious. In the railway transportation system, the rails play the role of supporting the train and guiding the train wheels forward. When the wheel set passes through the rail joint, the train accelerates or brakes, and passes through the branch, the rail will be subjected to friction, extrusion and impact forces from all directions. Very prone to injury. Rail line maintenance, natural disasters and weather conditions and other external factors are also prone to breakage,...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/11G01S15/06
Inventor 杨媛刘正祥
Owner 杨媛