| 摘要 |
PROBLEM TO BE SOLVED: To provide a nurse call slave machine using a voice sensor provided for a patient who cannot move his or her hands and feet on his or her own to be capable of reducing erroneous calling for a nurse call master machine.SOLUTION: A call of the nurse call is made only when the approach of a patient's mouth to a sensor head 3 is detected by a human body proximity sensor 4, and an utterance of a voice by the patient is detected by a voice sensor 5 so that a call of the nurse call is made only when the patient moves his or her mouth close to the sensor head 3 and utters a voice with a clear intention to make a call. Meanwhile, when the patient moves his or her mouth away from the sensor head 3 without any intention to make a call, a call of the nurse call is not made even when the voice sensor 5 detects a voice. Thereby, it is possible to prevent a call that is not intended by the patient from occurring as much as possible, and reduce erroneous calling for a nurse call master machine.SELECTED DRAWING: Figure 1 |
