Development of Compact Versatile Acquisition Platform for Wireless Sensing Applications

Abstract:

In this paper we present a compact and versatile acquisition platform designed by modularized method, which is useful and flexible for various sensing applications (such as mechanic detection and ubiquitous computing) thanks to the combination of high resolution analog-to-digital converter (ADC), low power consumption and exchangeable wireless transmission. The 31*45 mm² module supports simultaneous acquisition on maximum 8 channels with an effective number of bits (ENOB) of 20.9 at most and a sampling rate of up to 32KSPS each. Also we implement two popular modes of wireless transmission featuring high data rate and low power, namely a transmission rate of 21.3Kbps using Bluetooth low energy (BLE, power consumption 30mW) and 263Kbps using WiFi (723mW). Additionally, two typical wireless sensing applications, floor vibration detection and electrocardiograph (ECG) signal acquisition, are tested to demonstrate the performance of this platform. Results show that the characteristic of this platform can primely satisfy the requirements of these applications featuring high resolution, low power and high-efficient wireless data transmission, which is greatly helpful for exploring-stage experiments in wireless sensing application cases.

• Periodical: Applied Mechanics and Materials (Volume 654)
• Pages: 274-280
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.654.274
• Online since: October 2014
• Authors: Wu Huang Huang*, Matthias Kreil, Jing Yuan Cheng, Bing Wang, Bo Zhou, Paul Lukowicz
• Keywords: Data Acquisition, High Resolution, Modularized Design, Wireless Sensing

References

[1] Zhou, G. -D. and T. -H. Yi, Recent Developments on Wireless Sensor Networks Technology for Bridge Health Monitoring. Mathematical Problems in Engineering, 2013. 2013, ID 947867.

DOI: 10.1155/2013/947867

[2] Jo, H., et al. Development of high-sensitivity accelerometer board for structural health monitoring. in SPIE Smart Structures and Materials+ Nondestructive Evaluation and Health Monitoring. 2010. International Society for Optics and Photonics.

[3] Hook, J., et al. Making 3D printed objects interactive using wireless accelerometers. in CHI'14 Extended Abstracts on Human Factors in Computing Systems. 2014. ACM.

DOI: 10.1145/2559206.2581137

[4] Aylward, R. and J.A. Paradiso. A compact, high-speed, wearable sensor network for biomotion capture and interactive media. in Proceedings of the 6th international conference on Information processing in sensor networks. 2007. ACM.

DOI: 10.1109/ipsn.2007.4379698

[5] Chen, C., et al., A review of three-layer wireless body sensor network systems in healthcare for continuous monitoring. Journal of Modern Internet of Things, 2013. 2(3).

[6] Patel, S., et al., A review of wearable sensors and systems with application in rehabilitation. Journal of neuroengineering and rehabilitation, 2012. 9(1): p.21.

[7] Quinn, W., G. Kelly, and J. Barrett, Development of an embedded wireless sensing system for the monitoring of concrete. Structural Health Monitoring, 2012. 11(4): pp.381-392.

DOI: 10.1177/1475921711430438

[8] Chuo, Y., et al., Mechanically flexible wireless multisensor platform for human physical activity and vitals monitoring. Biomedical Circuits and Systems, IEEE Transactions on, 2010. 4(5): pp.281-294.

DOI: 10.1109/tbcas.2010.2052616

[9] Shebi Ahammed, S. and B.C. Pillai, Design of Wi-Fi Based Mobile Electrocardiogram Monitoring System on Concerto Platform. Procedia Engineering, 2013. 64: pp.65-73.

DOI: 10.1016/j.proeng.2013.09.077

[10] Touati, F., R. Tabish, and A.B. Mnaouer, A Real-time BLE Enabled ECG System for Remote Monitoring. APCBEE Procedia, 2013. 7: pp.124-131.

DOI: 10.1016/j.apcbee.2013.08.022

[11] Cheng, J., et al., Designing Sensitive Wearable Capacitive Sensors for Activity Recognition. Sensors Journal, IEEE, 2013. 13(10): pp.3935-3947.

DOI: 10.1109/jsen.2013.2259693

[12] [cited 2014 May 25]; Available from: http: /www. adafruit. com.

[13] Holub, J. and J. Vedral, Stochastic Test of 24bit-AD Converter–Case Study, in 9th International Workshop on ADC Modelling and Testing (IWADC). (2004).

[14] Inc., T.I., ADS1298ECG-FE/ADS1198ECG-FE ECG Front-End Performance Demonstration Kit User's Guide. (2012).