The invention discloses a network netting and a routing method of a
Bluetooth wireless sensor, which combines sensor network technique and
Bluetooth technique and makes full use of the matured
physical layer, MAC technique and anti-interference capacity of
Bluetooth network when the sensor nets network, so as to lead the
system to conveniently and rapidly net the network. A designed Bluetooth scatter net takes the practical use of a
wireless sensor network into consideration when netting and uses a tree topology. The netting consists of three stages: the selection of a root node, the forming of a root
piconet and the expansion of the network. By adopting the netting method based on that the energy can be predetermined and the
service time of the network can be prolonged, and under the requirement of emphasizing the longest service life of the network, each
piconet of the formed
wireless sensor network is left with vacant positions and
backup nodes, so as to lead the formed network to have better reliability, flexibility and self-recoverability to satisfy the situations that partial nodes can be added on, moved and leaves the network, etc. The routing information is interacted when the
system is net, and when the network netting is completed, the routing information tables of all the nodes are built simultaneously. When the network is operated, a low-power respiratory mode of the Bluetooth network and the transmitting and sensing information of the network periodicity are used for prolonging the life service of the whole network.