| 摘要 |
PROBLEM TO BE SOLVED: To provide an air circulation system capable of certainly switching internal air circulation and external air introduction in a sheltered area even in a condition where measurement error is generated. SOLUTION: The air circulation system is provided with an air-conditioning control part 1 for switching whether an internal air circulation mode for circulating air in a room is taken or an external air introduction mode for introducing external air is taken; a position measurement part 11 for measuring a present position; a map data storage part 13 for storing map data; and a control part 15 for instructing switching to the internal air circulation mode to the air-conditioning control part when the present position measured by the position measurement part is in a range from a first predetermined distance before the sheltered area indicated by the map data read from the map data storage part to a second predetermined distance after passing through the sheltered area. COPYRIGHT: (C)2009,JPO&INPIT |
