Development of an Embedded System-Based Gateway for Environmental Monitoring in Wild Fields

Acquiring continuous observation results is an essential demand for environmental monitoring. Wireless sensor networks (WSNs), encompassed of many tiny sensing devices, give a good solution when collecting continuously temporal and spatial data. Because WSNs have no long-range communication capabilities, a gateway is needed to collect sensing data from wild fields and transmit the data to a backend server. The gateway has to handle all sensor nodes in a network, so both stability and processing capability have higher priorities. Thus, to achieve these goals, an embedded system-based field gateway with an energy-efficient design that includes a suitable graphical user interface for system maintenance and a touch screen is proposed. The touch screen provides users with gateway information, so that the users can take action when facing unexpected situations. The operation of the gateway is self-sustained by a lead-acid battery and a solar cell.

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