Low-Power Sensor Control Manager for Multihop Underwater Networks

Autores UPV
Año
CONGRESO Low-Power Sensor Control Manager for Multihop Underwater Networks

Abstract

Underwater sensor wireless networks are increasing in interest for seabed and water column monitoring. However, due to the fact of lacking for a predictable energy-harvesting source the life time battery constrain reveals the importance of looking for low-power consumption development platforms to implement underwater sensor networks. This paper presents a study on consumption, wake up timing and performance of an ARM Cortex M4 in different low power mode. The STM32F4 discovery board has been selected as commercial platform for a prototype design of a multihop communication system. The implementation integrates FreeRTOS, SRAM and micro SD storage.The system is intended to the capability of transmitting data from underwater sensor nodes along a deployed lined topology. Communication is done through ARM Cortex UART ports, linked with the S1000 ITACA modem with acoustic capability. Thus, a specific API has been designed to couple both systems. Data are finally received in a pc host sink through Ethernet connection