A Tracking Bracelet Device for Kids with Detachment Warning Function

Abstract

In this paper, we design a tracking bracelet device for kids with novel function that can detect in real-time whether the device is still attached or not. The novel function in combined with setting of a safe zone yields an absolute tracking of thekid safety. A prototype is implemented achieving a small size of 60 x 60 x 25 mm. The test results demonstrate that the proposed device works very well with 100 % of exact warning when the kids are assumed in danger. Moreover, thanks to alow power consumption of about 64 mW in average, the device is expected to work continuously at least 18 hours.