Safety system for cleanroom and operation method thereof

A method of operating a safety system for a clean room, comprising:

• providing a safety system, the safety system at least comprises:
• a cleanroom garment equipped with a plurality of RFID (radio frequency identification) tags;
• a face recognition device installed at an entrance and an exit of a clean room;
• and
• a first RFID reader installed beside at least one machine in the clean room;
• wherein when a person wears the cleanroom garment to enter the clean room, the safety system performs the following steps:
• (1) the face recognition device judges the data of the person, and according to the identified data of the person, the safety system grants the machine platform corresponding to the RFID tags of the cleanroom garment and links the cleanroom garment with the person;
• (2) when the person approaches the machine, the first RFID reader determines whether the RFID tag of the cleanroom garment conforms to the usage authority;
• and
• (3) If the first RFID reader determines that the usage authority of the RFID tag of the cleanroom garment is unqualified, a signal of a display screen of the machine will be cut off.