Design And Implementation Of Indoor Movement Tracking Based On MEMS Sensor In WSNs

The key technology of the Internet of Things is how to sense the environmental information.Wireless sensor network was widely applied in many fields. Meanwhile the service based on thepositioning is increasingly gaining its value in research and application.This paper mainly studies the design and implementation of a wireless sensor networkpositioning system. In order to avoid the influence of environmental factors on the accuracy of thepositioning, it studies the design and implementation of a MEMS sensor-based spatial orientationsolution. The main task includes the following aspects:1. Hardware Design: According to people’s requirements of WSNs indoor position, the suitablehardware platform and MEMS sensor was chosen in order to design a mobile node which can sensethe acceleration, angular acceleration information of the holders and the network node which cansave and exchange date directly with the upper PC.2. Research on Software: According to the communication needs, choose the SimpliciTInetwork protocol. Design and implementation WSNs with ultra-low power consumption, low datarate, low duty cycle and has features such as Ad-hoc.3. Simulation&Analysis: Analysis and processing the information collected by the sensornodes, and modeling based on physical principles. Processing the collected information, obtain atrajectory of the mobile node.This system has the advantages of highly integration, simple circuit, small volume, low powerconsumption, easy to expand and maintain. It can be an additional method for wireless positioning,increasing the accuracy.