Automatic channel selection method and device for wireless ad hoc network

The invention relates to an automatic channel selection method and device for a wireless ad hoc network. The method comprises the following steps: sending IP broadcast information to slave nodes in awireless network under a current channel, the wireless network comprising a master node and slave nodes wirelessly connected with the master node; determining the number of slave nodes for networkingunder the current channel; and traversing all channels, determining the number of slave nodes for networking under each channel, selecting the channel with the largest number of slave nodes for networking, and performing wireless ad hoc networking. According to the automatic channel selection method for a wireless ad hoc network, the master node determines the number of slave nodes for networkingunder the current channel, the master node traverses each available networking channel and selects the channel with the largest number of slave nodes for networking to perform wireless networking, themethod can adapt to the env