esocid writes: Researchers from Taiwan has designed the new bio-signal monitoring system inside a baseball cap with the goal of making it convenient and easy to use in everyday life. Since the system is wireless and portable, and can process data and provide feedback in real time, it could be useful for a variety of applications. It looks like an ordinary baseball hat but detects and analyzes the EEG signals from your brain. It can even tell you if you're getting too sleepy when driving. Similar technology could also allow you to control home electronics such as TVs, computers, and air conditioners, all by just thinking about them. "This study details the design, development and testing of a non-invasive mobile and wireless EEG system for continuously monitoring high-temporal resolution brain dynamics without requiring conductive gels applied to the scalp," said researcher Li-Wei Ko. The hat contains five embedded dry electrodes on the wearer's forehead, and one electrode behind the left ear, that acquire EEG signals. The EEG signals are wirelessly transmitted to a receiver, where they are processed in real-time by a dual-core processor. The BCI system includes Bluetooth transmission for distances of 10m or less (for driving applications), as well as RF transmission for distances up to 600m (for potential sports applications). Next, the processed signals are transmitted back to the cap, where the data can be stored, displayed in real-time on a screen, or be used to trigger an audio warning, if necessary.
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