| 摘要 |
<p>PROBLEM TO BE SOLVED: To effectively reduce consumption energy of a central type air-conditioning system without spoiling comfort of air conditioning while avoiding complication of a system configuration.SOLUTION: An air-conditioning control system for controlling a central type air-conditioning system includes a sub controller installed in each of regions, and a main controller communicable with the sub controllers. The sub controllers include a sound wave receiving section for receiving a sound wave output from a portable device capable of outputting the sound wave, and a sound wave intensity information transmitting section for transmitting sound wave intensity information showing receiving intensity of the sound wave to the main controller. The main controller sets a first operation mode for a region in which the sub controller of a transmission source of specific sound wave intensity information showing maximum sound wave intensity is installed when the specific sound wave intensity information showing the sound wave intensity of equal to or higher than a threshold exists in the sound wave intensity information received from the sub controllers, and sets a second operation mode for other regions.</p> |
