With the advancement of society, passenger vehicles have become an important part of ensuring the normal operation of the entire social economy, which is closely related to the daily lives of ordinary people. However, passenger vehicles may cause serious casualties after a fire, explosion or even artificial arson. The lack of security of the public transport system on the bus system has even caused citizens to panic about the current society. For example, after the Kunming series of bus bombings in 2008, the people of Kunming were heart-wrenching, and the entire vehicle system was basically unoccupied, and citizens traveled instead. Taking a taxi or buying a private car or bicycle creates a greater burden on the originally congested transportation system and has a great impact on the normal operation of the entire society.