Method and system for protecting operations in a vacuum environment of an ultra-high-speed magnetic levitation low vacuum tube

A system for protecting operations in a vacuum environment of an ultra-high-speed magnetic levitation low vacuum tube, comprising a central operation control system, a partition operation control system, an on-board operation control system and a vacuum tube monitoring system, wherein the central operation control system is connected to the partition operation control system and the vacuum tube monitoring system respectively, and the partition operation control system is further connected to the vacuum tube monitoring system and the on-board operation control system respectively, wherein,

• the vacuum tube monitoring system includes an air diffusion calculation module, a control subsystem, an environment sensing subsystem, a door valve, a return pressure valve, an escape door, a vacuum pump, an air pressure sensor and an air velocity sensor, wherein the air pressure sensor and the air velocity sensor are respectively connected to the environment sensing subsystem and are configured to collect pressure and air velocity in the vacuum tube respectively, and the air diffusion calculation module is connected to the environment sensing subsystem and is configured to calculate the pressure and the air velocity in the vacuum tube provided by the environment sensing subsystem, to establish an air diffusion model;
• and the control subsystem is connected with the gate valve, the return pressure valve, the escape door, and the vacuum pump in the vacuum tube, and is configured to control the gate valve, the return pressure valve, the escape door, and the vacuum pump;
• the central operation control system comprises a temporary speed limit automatic calculation module and a global automatic emergency instruction module, wherein the temporary speed limit automatic calculation module is connected with the global automatic emergency instruction module, wherein the global automatic emergency instruction module is connected with the air diffusion calculation module of the vacuum tube monitoring system for obtaining an air diffusion model and sending the air diffusion model to the temporary speed limit automatic calculation module, wherein the temporary speed limit calculation module is configured to calculate a temporary speed limit based on the air diffusion model;
• and
• the partition operation control system is configured to control an operating status of the train through the on-board operation control system according to a control instruction sent by the central operation control system based on the air diffusion model.