DETECTOR

• Main Authors: KOBAKO SATOSHI, TADA JUNICHI, SHIBUYA YUJI
• Format: Patent
• Language: English; Japanese
• Published: 08.02.2024
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

To provide a detector capable of quickly notifying reception of laser light radiated by a speed measurement device while suppressing false alarms.SOLUTION: A laser light determination unit 54 of a detector 1 provided herein uses light received by a photosensor 4 to determine if the light matches determination conditions. The laser light determination unit 54 compares a pulse interval of a detection signal with an integer multiple of a predetermined pulse interval D. In other words, the determination conditions include a pulse interval condition that the pulse interval of the detection signal should be an integer multiple, including 1x, of a laser light emission interval.SELECTED DRAWING: Figure 5 【課題】速度計測装置が照射するレーザ光の受信を迅速に報知するとともに、誤報を抑制した探知機を提供する。【解決手段】探知機１のレーザ光判定部５４は、光センサ４が受けた光に基づき、判定条件と光との一致を判定する。このレーザ光判定部５４は、所定パルス間隔Ｄの整数倍と検知信号のパルス間隔を比較する。即ち、判定条件には、検知信号のパルス間隔がレーザ光の発信間隔の１倍を含む整数倍であるパルス間隔条件が含まれる。【選択図】図５