Hazardous chemical vehicle-mounted system based on narrowband Internet of Things

The utility model discloses a hazardous chemical substance vehicle-mounted system based on a narrowband Internet of Things, relates to the technical field of hazardous chemical substance vehicle-mounted systems, and aims to solve the problem that hazardous substances cannot be monitored in real time during transportation in the prior art. The system comprises a card punching machine and a master control terminal, and the signal output end and the signal input end of the card punching machine are in signal interaction connection with the signal input end and the signal output end of the master control terminal. The sensing terminal can effectively monitor the temperature and humidity, the deformation condition, the liquid level condition, the quantity taking condition, the tire pressure condition, the vehicle driving track and the like in the dangerous chemical transportation process in real time, give out an audible and visual alarm, make corresponding processing, upload related data through an NB-IOT network