Beam irradiation system and control method thereof

A beam irradiation system, comprising:

• two irradiation chambers, comprising a first irradiation chamber and a second irradiation chamber;
• a beam generation device configured to generate a beam and emit the beam to the first irradiation chamber or the second irradiation chamber;
• a system control module including two control sub-modules one-to-one corresponding to the two irradiation chambers, the two control sub-modules including a first control sub-module and a second control sub-module, wherein the first control sub-module corresponds to the first irradiation chamber and is capable of controlling the beam generation device to emit the beam to the first irradiation chamber, and the second control sub-module corresponds to the second irradiation chamber and is capable of controlling the beam generation device to emit the beam to the second irradiation chamber;
• and
• a beam control module connected between the beam generation device and the system control module, one of the first control sub-module and the second control sub-module being capable of controlling the beam generation device through the beam control module when the beam control module is not occupied by the other of the first control sub-module and the second control sub-module.