Big data-based valve and fan cooperative active control system for in-train pressure fluctuation

Abstract

The invention discloses a big data-based valve and fan cooperative active control system for in-train pressure fluctuation, which belongs to the technical field of control. According to the big data-based valve and fan cooperative active control system for in-train pressure fluctuation, the position of a high-speed train, the speed and pressure signals inside and outside the train are detected inreal time through a sensor module; the acquired signals are converted and transmitted to a big data-based control module through a signal acquisition and processing module; the big data-based controlmodule matches actually-measured signals inside and outside the train and historical signals; valve and fan control signals in the same historical tunnel segment in a database are called for identification and are then corrected through a control algorithm to obtain corrected valve and fan control signals; and the signals are then fed to the valve and the fan through an analog output module. The pressure in the high-speed train is changed through adjusting the opening degree of the valve and the fan frequency, the effect of controllable automatic adjustment can be realized well, and the control cost can be saved.

Description

technical field [0001] The invention belongs to the field of control technology, and in particular relates to a large data-based cooperative active control system for pressure fluctuation valves and fans in vehicles. Background technique [0002] In recent years, with the further speed up of my country's high-speed trains, many aerodynamic effects that are not obvious when high-speed trains run at low speeds have begun to appear, and people's requirements for train ride comfort are getting higher and higher. Rapidity and comfort are the themes of high-speed train development at present. Due to the increase in speed and the high-speed train is not a completely enclosed space, when the train passes through the tunnel at high speed, due to the impact of the airtight gap and the ventilation system, the outside of the train will be violent. The fluctuating tunnel waves are transmitted into the car, causing pressure changes in the car. The instantaneous large pressure change in th...

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Problems solved by technology

[0003] At present, these traditional passive control and active control methods of vehicle interior pressure are mainly to suppress pressure changes in the vehicle, but in the vehicle interior pressure protection system, when valves and fans act alone as actuators, they can only ensure that the vehicle interior pressure is at a certain level. Fluctuations within the range, does not completely eliminate pressure fluctuations in the car

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