| 摘要 |
<p>Animal and human locating devices and methods are provided that allow tracking and monitoring of lost or kidnapped children, lost elderly people, prisoners, military personnel at risk during war, and animals. The devices and techniques for their use can greatly prolong battery life and, in some cases eliminate the need of battery power altogether, allowing long term implantation. Piezoelectric power generation is described that provides long term maintenance free power through automated recharging, for both locational devices and other electronic implants in a wide range of medical technologies. The implantable devices and systems of their use can locate lost individuals or animals and also monitor their physiological status for prolonged time periods.</p> |
