Fire hazard on-site positioning transmission system and method thereof

The invention provides a method for accurately positioning through passive positioning equipment based on an on-site building as a positioning datum point. When on-site power supply is cut off, the position of an on-site fireman who wears the product can still be accurately determined, thus effectively guaranteeing life safety of firemen and overcoming fire hazard on-site exploration. If the fireman enters into the site without wearing the product and reports to a commander about on-site situation and the position of the fireman through a talkback, it is possible that the fireman slips in a coma such that he cannot report the situation to the commander through the talkback on time. The commander cannot get real-time position information of the fireman, thereby delaying the best opportunity of the organization for rescuing.