Development of wireless sensor nodes for animals husbandry and medical applications

In this paper, we report the development of ultrasmall and low power wireless sensor nodes and the implantation in animals for food safety as well as for medical innovation. A passive RFID with hybrid interface and neglectable power consumption was introduced for the first time to enable switch ON/OFF and change of measurement modes after implantation. Besides low power consumption, a wireless power transmission module with high efficiency and maximum distance of 5 cm was developed to survive the sensor node for the duration of weeks by a few minutes remote charging. Field test results by using white-mouse and cow indicated high accuracy of the collected biological information and bio-compatibility of the package. Moreover, a surgical navigation system using wireless sensor nodes is proposed and discussed as a potential future application, and the preliminary results is presented herein.