| 摘要 |
PROBLEM TO BE SOLVED: To enable confirmation of a state among a plurality of devices with a simple operation, and to prevent an accident beforehand in a group action.SOLUTION: A member terminal 32 includes: a first position information acquisition control unit 130 for acquiring the position information of the self-terminal and a leader terminal 31; a first abnormal value detector unit 140 for detecting an abnormal value on the basis of the position information of the self-terminal and the leader terminal 31; a first display control unit 150 for controlling to display an operation menu according to the category of the detected abnormal value; a first operation control unit 160 for accepting an operation corresponding to the operation menu; and a first message transmission/reception control unit 170 for transmitting a message corresponding to the operation menu to the leader terminal 31. The leader terminal 31 includes: a second position information acquisition control unit 250 for transmitting the present position information of the self-terminal to the member terminal 32; a second message transmission/reception control unit 270 for receiving the message transmitted from the member terminal 32; and a second display control unit 260 for controlling to display the message. |
