Comparison of low-cost field monitoring system based on Linux

Field monitoring is thought to be one of the most essential term to inherit the experienced farmer´s skill to future generations. As sudden power supply failure or network communication shutdown might occur in agricultural farmland, robustness and redundancy were required in these kinds of system. In this study, some low-cost field monitoring systems were developed for acquiring real-time field condition from remote site. Linux was chosen as an OS of the system, because it reduced the cost of the system and made it more flexible. Computer board and I/O devices were properly arranged according to the purposes. These systems were installed in the field, and long term experiments were carried out. Continuous and stable data acquisition was possible due to the solid stated system.