Integrated, Reconfigurable Sensor Node with Localization Capability for the Recording of Measured Data and Social Interactions of Bats

蝙蝠定位项目BATS的一个核心组件是安装在蝙蝠背部的移动的节点。这个子项目集中在这种小型化的移动的节点的CMOS集成。因此，将研究电路拓扑结构、HW/SW划分和通信协议的问题，并以集成电路的形式实现。主要重点是提高能源效率，提高定位质量和鲁棒性以及升级传感器系统功能。为了提高效率，亚VT和近VT技术的模拟和RF电路的适用性进行了分析。此外，功率放大器将通过输出功率的动态控制来增强。它还将能够发射多频信号，以提高定位的准确性和鲁棒性。一个专门调整的近临界电压逻辑库的数字电路将被开发。通过重新定义硬件/软件接口，在数字域中提供了额外的节能潜力。我们将确定用优化的硬件替代软件解决方案的可能性，或为关键软件组件提供适当的硬件支持。该系统将升级，增加一个与内部和外部传感器的接口，以提供各种信息的数据集中。最后，将制造能够执行数据采集和通信的芯片，并在真实的世界环境中进行测试。

A central component of the bat localization project BATS is the mobile node which is mounted on the back of the bat itself. This subproject is concentrating on the CMOS integration of such a miniaturized mobile node. Therefore, problems regardingcircuit topologies, HW/SW partitioning and the communication protocol will be investigated with respect to the energy consumption and implemented in form of integrated circuits. The main focus is on enhancing energy efficiency, improving localization quality and robustness as well as on upgrading the sensor system capabilities. To improve the efficiency, the suitability of sub-vt and near-vt techniques for analog and RF circuits is analyzed. In addition, the power amplifier will be enhanced with a dynamic control of the output power. It will also become capable of transmitting multitone signals to improve accuracy and robustness of the localization. A specifically tuned near-vt logic library for digital circuits will be developed. Additional energy saving potential within the digital domain is provided by redefining the HW/SW interface. We will identify possibilities to replace software solutions by optimized hardware or provide proper hardware support for critical software components. The system will be upgraded with an interface to internal and external sensors to provide data concentration of a variety of information.Finally, a chip that is capable of executing data acquisition and communication will be manufactured and tested in the real world environment.