Network-integrated positioning system for directivity measurements of LED-panel on fisheries engineering

We have developed three kinds of a positioning system using an electronic track flatcar loaded on a large water tank for directivity measurements of LED-panel. Three applications are an underwater horizontal directivity measurement, an in-air horizontal directivity one, and an underwater vertical directivity one. Each measurement application is constituted of three systems that are a positioning system, an LED optical resource system, and an optical sensor system. Their control and monitoring programs have been developed using network communication protocols such as web service. An LED optical resource system includes an embedded firmware programmed using extended SPI communication protocol. And then, these multiple systems have been automatically performed by a newly-developed synchronization protocol.