Multi-sensor information fusion high-speed magnetic levitation turnout real-time monitoring system

Abstract

The invention discloses a high-speed maglev turnout real-time monitoring system based on multiple sensors. The high-speed maglev turnout real-time monitoring system comprises a data acquisition system, a data transmission system and a management control center. The data acquisition system comprises sensors arranged on a turnout beam, and acquisition and preprocessing of various physical signals are realized by data acquisition equipment; the data transmission system remotely transmits the field data acquired by the data acquisition system to the management center; and the management control center comprises a data management module, an early warning management module, an equipment management module and a system management module, receives field transmission data in real time, analyzes and stores the data, and is interconnected with control systems of operation, maintenance and magnetic levitation vehicles to realize real-time checking, analysis and safety early warning. According to the invention, a multidimensional monitoring system for key structural components of the magnetic levitation turnout is constructed, a large amount of multidimensional in-situ actually measured data of turnout operation is obtained, and comprehensive monitoring and early warning of the overall structure of the turnout are realized.

Description

technical field [0001] The invention belongs to the technical field of maglev turnouts, and in particular relates to a real-time monitoring system for high-speed maglev turnouts with multi-sensor information fusion. Background technique [0002] The maglev transportation system is currently the fastest and most technologically advanced transportation system among ground transportation systems in the world. It mainly relies on electromagnetic force to realize the functions of support, guidance, traction and braking. Compared with conventional wheel-rail trains, it has the characteristics of low noise, low energy consumption, no pollution, safety and comfort, and high speed and high efficiency. It is considered to be a new type of transportation with broad prospects. [0003] The turnout is an important part of the track structure system in the maglev train system. Compared with railway turnouts, maglev turnouts are quite different. Maglev turnouts are actually a continuous ...

AI Technical Summary

Problems solved by technology

[0004] The high-speed maglev turnout is a nearly 80m long steel beam structure with a weight of nearly 10 tons. The steel beam elastic bending type turnout is driven by multiple electromechanical devices to drive the elastic bending switch of the turnout beam into place. During the turnout process, many The operating states of two drive motors interfere with each other, and the coordination position of a certain drive motor is out of position, which will lead to changes in the line shape of the maglev switch, thereby causing position disturbance and torque disturbance to other drive running devices.

The maximum speed of the high-speed maglev train is 600km / h. When passing through the side-curved turnout, the train will exert a large relative deflection centrifugal force on the maglev turnout, which will cause stress concentration on the turnout and affect the fatigue life of the turnout beam; and the maglev train and turnout will appear when the train passes The coupling resonance phenomenon of beams will damage the turnout structure and generate large noise, seriously affecting the safety and comfort of driving. It is urgent to take measures to reduce the coupling vibration that occurs when the maglev train passes through the turnout. The traditional vibration monitoring sensor adopts a single point Monitoring method, the length of the maglev turnout is nearly 80m, which is difficult to meet the monitoring requirements of the whole section

In addition, due to the continuous action of the maglev vehicle and the continuous deterioration of the performance of the material itself, the turnout straight line position of the turnout may deform the structure of the turnout beam. If it is not discovered in time, the deformation will continue to aggravate during use, and eventually affect driving safety.

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