| 摘要 |
PURPOSE: To permit the detection of a human body with good accuracy by a method wherein the data processing of the output signals of a plurality of infrared ray sensors is effected in accordance with a predetermined processing procedure. CONSTITUTION: Signals of night and left infrared ray sensors 2, 3 are amplified respectively to make output waveforms. The pole of the output signal waveform is obtained by output signal waveform processing while the pole of saturated output signals can be obtained approximately by out of a predetermined range input signal processing. Next, various noises are removed by external turbulence detecting and preventing process while the amplitude and frequency, obtained from the pole through amplitude and frequency rank deciding process, are classified into ranks within a plurality of specified ranges. Subsequently, the results of data processings of respective output signals of right and left infrared ray sensors 2, 3 are compared by amplitude and frequency rank comparing process and a human body is decided by respective detecting areas human body detection deciding process whether the human body is in a left sensor detecting area 4, a right sensor detecting area 5 or in a superposed detecting area 6 or not. According to this method, the human body can be detected with good accuracy. |
