Position and operational decision manner and being

摘要

PROBLEM TO BE SOLVED: To provide a method for determining a position and an operation to detect the position of an object to be detected and exactly determine the operation of the object to be detected with high accuracy.SOLUTION: In the method for determining a position and an operation to determine the position and the operation of the object to be detected based on an infrared detection signal output from an infrared detection part receiving infrared ray emitted from the object to be detected, the infrared detection part includes at least two infrared sensor parts provided with a view angle limiting body to determine the operation of the object to be detected based on a position signal of the object to be detected that indicates a difference or a ratio of intensity of the infrared rays obtained from the two infrared sensor parts, and a signal obtained by differentiating the difference or the ratio with respect to time using the difference or the ratio of the intensity of the infrared rays as a function of the time.