| 摘要 |
A Remotely Powered Underwater Acoustic Sensor Networks (RPUASN) paradigm and the node architecture for RPUASN are disclosed. In RPUASN, sensor nodes harvest and store power supplied by an external acoustic source, extending their lifetime indefinitely. Necessary source characteristics are determined. The ability of an RPUASN sensor to harvest its required power is disclosed with respect to source parameters and distance to the source. Performance of RPUASN is directly related to the sensing coverage and communication connectivity over the field the sensor nodes are deployed. The required number of RPUASN nodes and the volume which is guaranteed to be covered by the nodes is disclosed in terms of electrical power, range, directivity and transmission frequency of the external acoustic source, and node power requirements. |
| 主权项 |
1. A sensor for enabling remote acoustic powering of underwater acoustic sensor networks (UASN), comprising:
a harvesting unit (1), including at least one hydrophone (1.1); a power unit (2), including a DC Converter (2.1) and a capacitor (2.2); a control, sensing, and processing unit (3), configured for sensing and data processing; and a communication unit (4), including a data receiver (4.1), a data transmitter (4.2), and a transducer (4.3); wherein the power unit is connected to the harvesting unit, the control, sensing and processing unit, and to the communication unit; the at least one hydrophone (1.1) is selected according to the receiving voltage sensitivity (RVS) level at an acoustic transmission frequency of an external acoustic source remote from the sensor, wherein the external acoustic source is configured to provide power to the sensor. |
