Thousands of dollars of energy is wasted running industrial fans when plants were empty. Customers needed an efficient and “greener” alternative to manage energy costs during shift fluctuations.
Our task was to design a system that could accurately transmit long term on/off data (up to a year) into a handheld remote and to synchronize the programming from the computer into the handheld device.
In this industrial project, we worked to design the control system hardware for this wireless application. In this case, we designed the complete system, including an infrared communication protocol, PC support software, low-power infrared transmitter, and low-power infrared receiver that allowed communication at about 70 feet. All of this was accomplished within the constraints of a small ~70mA transformer with less 5V (AC) power.