Wireless HART standard-based in-vehicle wireless interaction method

The invention relates to a Wireless HART standard-based in-vehicle wireless interaction method, and aims to establish a wireless vehicle-mounted network. The vehicle-mounted network comprises a gateway, access points and a plurality of wireless nodes, wherein the gateway accesses to a vehicle control wired network, and is connected to the access points; and the wireless nodes and the access points form the mesh wireless vehicle-mounted network. The method comprises: a network access and networking stage, a communication stage and a network searching stage. Compared with the prior art, in the method provided by the invention, through the network access and networking stage, the automatic fast networking is realized, through the communication stage, safe data transmission is realized based on a redundant path, and through the network searching stage, low power consumption operation is realized; and the wireless vehicle-mounted network can replace a communication cable, and a purpose of reduction of the wiring harness weight is realized by use of various equipment which are connected with a vehicle through a wireless technology.