Deployment of a wireless sensor network for aquaculture and lake resource management

We describe the ongoing deployment of a wireless network system for monitoring aquaculture applications and managing a lake resource in one of the Seven Lakes in San Pablo, Laguna, Philippines. Field servers are deployed to measure water quality parameters such as dissolved oxygen and temperature. In addition, a novel floating platform field server is developed to gather data in the middle parts of the lake. Cameras are also deployed to monitor different aspects of the area. A knowledge management system allows dissemination of these data and other information that would be of interest to stakeholders and the local community

Alarm systems for rain-induced sudden hazards

This paper discusses the design of a broadband wireless network infrastructure which itself is a rain measurement platform for application such as rain induced sudden hazards. The system consists of a hybrid broadband wireless network in conjunction with real-time acoustic rain rate point sensors and complementary rain gauges with a web-based proof of concept sudden hazard decision management system incorporating a GSM-based SMS alarm. The testbed simulates the commercial deployment of a line-of-sight wireless backbone (implemented via a 26 GHz and 2.4 GHz. Combined wireless signal fade, acoustic power and tipping bucket rain rate measurements indicate the feasibility of using rain-induced RF signal fade thresholds and fade durations to trigger imminent sudden hazards

Design of a tropical rain - Disaster alarm system: A new approach based on wireless sensor networks and acoustic rain rate measurements

This paper discusses the design of a broadband wireless network infrastructure which itself is a rain measurement platform for applications such as disaster alarm and sudden hazard decision management systems. A sensor testbed is setup which consists of a hybrid broadband wireless network in conjunction with real-time acoustic rain rate point sensors and complementary rain gauges. The testbed simulates the commercial deployment of a line-of-sight wireless backbone (implemented via a 26 GHz line of sight link) and broadband wireless access network at 5 GHz and 2.4 GHz. Combined wireless signal fade, acoustic power and tipping bucket rain rate measurements over a several month span indicate the feasibility of using rain-induced attenuation and fade durations to trigger imminent-hazard alerts