SCAN TYPE DISTANCE MEASUREMENT DEVICE

• Main Author: MATSUSHITA YUSUKE
• Format: Patent
• Language: English; Japanese
• Published: 29.11.2018
• 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

PROBLEM TO BE SOLVED: To realize reduction in erroneous recognition of a measurement object in a scan type distance measurement device using reflection of measurement light.SOLUTION: A scan type distance measurement device of the embodiment includes: a reliability estimation part 126 for comparing optical system distance information obtained from an optical system distance information estimation part 112 and ultrasonic distance information obtained from an ultrasonic distance information estimation part 106 and estimating reliability of the optical system distance information; and a distance information correction part 127 for correcting the optical system distance information obtained in a predetermined measurement area which is defined as a measurement object by an ultrasonic transmission/reception part 105 based on the reliability, and outputting the optical system distance information after the correction, and being updated to the reliability corresponding to the optical system distance information after the correction when the ultrasonic distance information satisfies the predetermined conditions.SELECTED DRAWING: Figure 1 【課題】測定光の反射を用いた走査型距離測定装置における測定対象物の誤認識の低下を実現する。【解決手段】本実施形態の走査型距離測定装置は、光学方式距離情報推定部１１２から得られる光学方式距離情報と超音波方式距離情報推定部１０６から得られる超音波方式距離情報とを比較し光学方式距離情報の信頼度を推定する信頼度推定部１２６と、超音波方式距離情報が所定の条件を満たすと判定された場合に、超音波送受信部１０５が測定対象とする所定の測定領域において得られた光学方式距離情報を、該信頼度に基づいて補正し補正後の光学方式距離情報を出力し、該信頼度を補正後の該光学方式距離情報に対応する信頼度へと更新する距離情報補正部１２７と、を備える。【選択図】図１