Battery capacity estimation of wireless sensor node

Wireless sensor networks (WSNs) include a large number of distributed sensor nodes that consist of sensor, microcontroller and transceiver block. As the main source of energy sensor nodes usually use non-rechargeable batteries, so that the stored energy is a very important resource of a WSN. The main goal of this paper is estimating the battery lifetime of a sensor node in respect to the usage pattern. Calculating the battery remaining capacity is performed in real application conditions by using information from datasheets for all its blocks. Simulation results show that the design and operation modes of the sensor node affect the battery lifetime.