As a public transportation with a large number of passengers, the safety of the subway will directly affect the general public The safety of passengers' lives and property, and safe operation are the primary goals and basic principles of subway transportation. Fire is the main factor threatening subway safety, and an important cause of casualties and property losses.
First: Current Situation
Since the subway in my country was put into operation in 1969, there have been 156 fires, including 3 major fire accidents, and extremely serious fires due to the breakdown of electrical equipment and routes in substations and subway vehicles, as well as illegal electric welding and misoperation of electrical equipment. 1 accident. According to a large number of studies, the biggest cause of subway losses is fire. Therefore, it is necessary to do a good job in the prevention of subway fires, try to eliminate fires at the initial stage, build complete and effective prevention and fire-fighting measures, and do a good job in subway fire safety. When a subway fire broke out, there were many casualties and huge economic losses.

Second: Fire characteristics of rail transit industry

Difficulties in fire detection and suppression
Because the subway’s entrances and exits are limited, and the entrances and exits are usually smoke outlets during a fire, it is difficult for firefighters to approach the fire point, and it is difficult to carry out fire fighting.

Produces toxic smoke and has poor heat and smoke exhaust
Due to the narrow space of the subway, a large amount of smoke cannot be diffused in the car. It quickly spreads to the entire underground space in a short time, causing the death of people in the car inhaling toxic smoke.

The oxygen content drops sharply
After the subway fire broke out, due to the relatively enclosed nature of underground buildings, a large amount of fresh air was difficult to quickly replenish, resulting in oxygen content in the air The sharp decline caused the human body to suffocate and die.

Difficulty in evacuation

Metro route exit Complicated. In the event of a fire, it is impossible to distinguish the direction without lighting, causing difficulty in evacuation

 

Third: Smart fire protection solutions: 
1) Establish a set of “perception-evaluation-warning-treatment-optimization&rdquo ; Fire prevention and control combined with intelligent iterative optimization and promotion of fire protection solutions, continue to improve the fire risk self-prevention and control capabilities of key fire protection units;
Perception: integrated monitoring of smoke, temperature and fire; remote visual supervision; mobile phone monitoring;
Assessment: regional fire risk assessment; single building fire risk assessment;
Early warning: early warning of fire area; early warning of unit area fire; emergency preparation plan to assist decision-making
Disposal: call the fire control center; management of fire-fighting duty personnel; fire-prevention monitoring management; fire-fighting system start-up management
Optimization: accident data analysis; fire protection publicity and education; fire protection supervision improvement; fire simulation drill

2) Using 5G Internet of Things information technology, fire technology, and new smart fire technology, Achieve the seven goals of comprehensive perception, dynamic monitoring, intelligent early warning, unified command, rapid disposal, precise supervision, and data analysis, and effectively improve the fire prevention and control capabilities and actual combat command level of fire rescue agencies and key fire fighting units, and contribute to social and economic development Create a good fire safety environment, and escort the continuous stability of the society and the sustainable health of the people.
Comprehensive perception: Comprehensive perception of smoke, temperature, and fire
All-weather monitoring: HD camera 360° all-weather monitoring
Intelligent warning: fire control center warning; wireless terminal transmission warning; mobile terminal warning
Scientific command: Make scientific decisions through visual monitoring; initiate relevant emergency preparedness plans;
Quick disposal: emergency evacuation of personnel; activation of fire extinguishing system;
Precision supervision: precise fire area scope; division of risk areas to organize evacuation in an orderly manner;
Data analysis: risk assessment; simulation exercise