Development of a Microcontroller-based Wireless Accelerometer for Kinematic Analysis

Maria Clarissa Alvarez Carasco, Jan Pierre Potato Pizarro, Giovanni Alarkon Tapang

Abstract

Wireless sensor networks (WSNs) allow real-time measurement and monitoring with less complexity and more efficient in terms of obtaining data when the subject is in motion. It eliminates the limitations introduced by wired connections between the sensors and the central processing unit. Although wireless technology is widely used around the world, not much has been applied for education. Through VISSER, a low cost WSN using nRF24L01+ RF transceiver that is developed to observe and analyze the kinematics of a moving object is discussed in this paper. Data acquisition and transmission is realized with the use of a low power and low cost microcontroller ATtiny85 that obtains data from the ADXL345 three-axis accelerometer. An ATtiny85 also controls the receiving module with a UART connection to the computer. Data gathered are then processed in an open-source programming language to determine properties of an object’s motion such as pitch and roll (tilt), acceleration and displacement. This paper discusses the application of the developed WSN for the kinematics analysis of a toy car moving on flat and inclined surfaces along the three axes. The developed system can be used in various motion detection and other kinematics applications, as well as physics laboratory activities for educational purposes.




Keywords


wireless sensor network; accelerometer; kinematics; nRF24L01+

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References


R. Roman, J. Lopez and C. Alcaraz, "Do Wireless Sensor Networks Need to be Completely Integrated into the Internet?" Future Internet of People, Things and Services (IoPTS) eco-Systems, Brussels. 2nd December 2009.

F. L. Lewis, “Wireless Sensor Networks,� Smart Environments: Technologies, Protocols, and Applications, New York, 2004.

Y. Lee, J. Kim, M. Son and M. Lee, “Implementation pf Accelerometer Sensor Module and Fall Detection Monitoring System based on Wireless Sensor Network�, Proceedings of the 29th Annual International Conference of the IEEE EMBS, Cite Internationale, Lyon, France, August 2007.

H. Chan, P. Chao, Y. Chen, W. Kao, “Wireless Body Area Network for PhysicalActivity Classification and Fall Detection�, 5th International Summer School and Symposium on Medical Devices and Biosensors, June 2008. crossref

Z. Zhang and X. Hu, “ZigBee based Wireless Sensor Networks and Their Use in Medical and Health Care Domain�, 2013 Seventh International Conference on Sensing Technology, 2013. crossref

Y. Zhu, G. Zhang, L. Zhu, J. Xu, “Design of Wireless Multi-point Temperature Transmission System Based on nRF24L01�, International Conference on Business Management and Electronic Information (BMEI), 2011. crossref

H. Liu, Z. Meng and M. Wang, “A Wireless Sensor Network for Cropland Environmental Monitoring�, International Conference on Networks, Security, Wireless Communications and Trusted Computing, 2009. crossref

R. Mittal, M.P.S. Bhatia, “Wireless Sensor Networks for Monitoring the Environmental Activities�, IEEE 2010. crossref

L. Hou and W. Bergmann, “Novel Industrial Wireless Sensor Networks for Machine Condition and Fault Diagnosis�, IEEE Transactions on Instrumentation and Measurement, Vol. 61 No. 10, October 2012. crossref

F. Salvadori, M. de Campos, R. de Figueiriedo, C. Gehrke, C. Rech, P.S. Sausen M.A. Sphon and A. Oliviera,�Monitoring and Diagnosis in Industrial Systems Using Wireless Sensor Networks.�, IEEE 2007. crossref

S. Panela. (2012, Sept. 17). Do top PHL schools' low world rankings reflect state of science ed in country? [Online]. Available: http://www.gmanetwork.com/news/story/274398/scitech/science/do-top-phl-schoolslow-world-rankings-reflect-state-of-scienceed-in-country.

Philippine-American Academy of Science and Engineering, “VISSER: Versatile Instrumentation System for Science Education and Research� [Online], 2011, Available: http://www.paase.org/visser.html.

Atmel, “Atmel 8-bit AVR Microcontroller with 2/4/8K Bytes In-System Programmable Flash,�ATtiny85 datasheet. 2013.

Nordic Semiconductor, “nRF24L01+ Single Chip 2.4GHz Transceiver Preliminary Product Specification v1.0,� nRF24L01+datasheet, March 2008.

Analog Devices, “3-Axis, ±2 g/±4 g/±8 g/±16g Digital Accelerometer,� ADXL345 datasheet, 2013.


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