WARNING SYSTEM AND WARNING METHOD

PROBLEM TO BE SOLVED: To provide a warning system and a warning method capable of preventing generation of an accident by a communication error. SOLUTION: The warning system 10 includes a server 12, which is communicably connected to a sensor unit 20 via a network 14. The sensor unit 20 collects voice of a nurse who wears it and transmits the voice to the server 12. The server 12 decomposes the voice when the nurse has a talk into words. As a result of decomposition, when an abstract word, a word with ambiguous meaning and a word having a plurality of meanings exist and quantity or a unit or both of them are not attached to a word to which the quantity and the unit should be added in the talk, judges that an indefinite element (unclear or obscure content) exists. After that, when there is no confirmation about such indefinite elements, warning (an alarm) that generation of the communication error and the indefinite element should be confirmed to the nurse. Thus, the accident or a mistake resulting from the communication error is prevented. COPYRIGHT: (C)2007,JPO&INPIT