A real-time EMG/ECG monitoring system over the internet

Bioinstrumentation to estimate a human internal status such as emotion, fatigue, and mental stress, is significant for watching over persons. Infrastructure of sensor nodes network and its devices are also required for realization of such measurement system. Therefore, in this paper, authors introduce a new EMG/ECG monitoring system over the Internet. In their previous works, they developed small wireless EMG/ECG electrode called VAMPIRE-BAT (Variables Adjustable Multi-Purpose Intelligent Remote-controlled Electrode for Bio-signal Amplification and Transmission) However, VAMPIRE-BAT is ZigBee based device and its effective communication range is limited up to 20 m. Then, they newly developed a range extending system called WIVERN (Web Interfaced Vampire-bat for Extra Range Networking). This system is an Internet gateway for VAMPIRE-BAT. Bio signals are firstly uploaded to a nearby server using ZigBee communication, then the data are immediately ready for download. The availability of the prototype system is examined by an out-door experiment.