A wireless sensor network: avoid colliding with moose

In northern American, many accidents happen due to colliding with moose and deer. A Wireless Sensor network system is extremely needed to avoid colliding with these large animals. A design for detecting moose and deer threat is presented in this paper. In a WSN, node is the key part for detecting necessary data. A sensor node with a processing unit and a RF module collects the surrounding environment parameters based on certain procedure. In moose detection WSN, the purpose of the network is to detect potential threat to the drivers caused by moose. The sensor nodes are deployed along the high way. Once a moose is detected by transmitter, a warning signal will be sent to base station and drivers will notice. In this paper, we present a low-cost node design based on MSP430 and RF24L01A. In the first part of this paper, the hardware structure and protocol layer are introduced in detail. Data format, communication protocol and error correction are the main topics. In the second part, coding scheme is introduced. It includes RF interface, data constructing, single pair communication, multi-node communication and routing. The type of node is the prototype for application of moose detection. It is extremely important to implement a full functional mesh network node. The network is to be self-healing, self-organize and self-routing. The node design is based on these rules.