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Open AccessArticle

A Portable and Wireless Multi-Channel Acquisition System for Physiological Signal Measurements

Department of Computer Science and Information Engineering, Chaoyang University of Technology, Taichung 413, Taiwan
Department of Biomedical Engineering, I-Shou University, Kaohsiung 824, Taiwan
Department of Electrical Engineering, National Taipei University of Technology, Taipei 106, Taiwan
Author to whom correspondence should be addressed.
This paper is an extended version of our paper published in 9th International Conference on Awareness Science and Technology (iCAST 2018), Kyushu University, Fukuoka, Japan, 19–21 September 2018, pp. 36–41.
Sensors 2019, 19(23), 5314;
Received: 23 October 2019 / Revised: 25 November 2019 / Accepted: 29 November 2019 / Published: 3 December 2019
(This article belongs to the Special Issue Medical Applications of Sensor Systems and Devices)
We propose a portable and wireless acquisition system to help consumers or users register important physiological signals. The acquisition system mainly consists of a portable device, a graphic user interface (GUI), and an application program for displaying the signals on a notebook (NB) computer or a smart device. Essential characteristics of the portable device include eight measuring channels, a powerful microcontroller unit, a lithium battery, Bluetooth 3.0 data transmission, and a built-in 2 GB flash memory. In addition, the signals that are measured can be displayed on a tablet, a smart phone, or a notebook computer concurrently. Additionally, the proposed system provides extra power supply sources of ±3 V for the usage of external circuits. On the other hand, consumers or users can design their own sensing circuits and combine them with this system to carry out ubiquitous physiological studies. Four major advantages in the proposed system are the capability of combining it with a NB computer or a smart phone to display the signals being measured in real time, the superior mobility due to its own independent power system, flash memory, and good expandability. Briefly, this acquisition system offers consumers or users a convenient and portable studying tool to measure dynamic vital signals of interest in psychological and physiological research fields. View Full-Text
Keywords: acquisition system; physiological signal; portable device; application program acquisition system; physiological signal; portable device; application program
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Liu, S.-H.; Wang, J.-J.; Tan, T.-H. A Portable and Wireless Multi-Channel Acquisition System for Physiological Signal Measurements. Sensors 2019, 19, 5314.

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