抄録
A captive balloon system named InfoBalloon has been developed as a system for collecting and distributing disaster information. In the disaster, information and communication service may break down by congestion of communication line, destruction of base stations, disconnection of cables, and so on. Therefore disaster area residents will fall into informational isolation. As a new emergency communication approach to solve these problems, we have investigated a method for the information distribution by flashing LEDs loaded on InfoBalloon. This paper describes algorithms for receiving flashing LEDs by using a smart phone camera, and method to increase transmission quantity by using multi-color LEDs.
