Exercise Bracelet with Bluetooth Low Energy Module and Accelerometer for Sporting Events

While the wireless Bluetooth 4.0 technology has been introduced, this study focuses on its low power consumption and quick connection features to develop a system used in sporting events. The system includes a user bracelet, signal reading stations, and individual positioning program by using of the RSSI (received signal strength indication). The proposed system does effectively and accurately capture user’s location, with different characteristics from regular positioning system as GPS and Wi-Fi, which can be applied in indoor and outdoor environments. Due to sporting events, the venue must maintain a certain space for movement, and the loss of multipath fading effects in the open spaces is much lower. Thus, the attenuation of the signal strength is much less, and it will more effectively target the user’s position. The positioning method is similar to Zigbee by using the triangulation algorithm, but the biggest difference is the cellular phones in the market support Bluetooth rather than ZigBee.

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