Abstract
We developed an open platform (UECS-Pi) that complies with application communication protocol version 1.00-E10 of the Ubiquitous Environmental Control System (UECS) and works on the single-board computer Raspberry Pi. When using a basic package to implement a general-purpose measurement and control function, it was possible to create a node in a short period. In addition, we created an open source software development kit that enables the addition of user-original functions. We created an outside air measurement node and a complex control node using UECS-Pi, and conducted a verification test for 3 months in a tomato greenhouse. We evaluated the period needed to create the nodes, as well as the cost and availability of these nodes to test the utility of the software. The results showed that it was possible to create a low-cost and workable UECS node with this system. In addition, the new platform has the advantage of being open source so that users would not have to be locked in to any particular vendor or product.
