Highway secondary accident intelligent monitoring and early warning system

A highway secondary accident intelligent monitoring and early warning system comprises the following steps that accident early warning devices are arranged on a highway guardrail at intervals, each accident early warning device comprises a collision early warning assembly and a monitoring early warning assembly, and the accident early warning devices obtain the real-time state of the guardrail so as to obtain highway road condition data; when an accident occurs, the vehicle collides with the guardrail to trigger the collision early warning assembly near the accident site, the collision early warning assemblies for collision and the monitoring early warning assembly transmit accident and road condition data to the cloud server, the cloud server judges whether a traffic accident occurs or not, and if the traffic accident occurs, the monitoring early warning assembly sends the accident and road condition data to the monitoring early warning assembly. The judgment result is sent to a real-time network display pla