OBJECT DETECTION DEVICE, SENSING DEVICE, AND OBJECT DETECTION METHOD

• Main Author: IMAI SHIGEAKI
• Format: Patent
• Language: English; Japanese
• Published: 14.09.2017
• 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 provide an object detection device that can accurately detect information on an object.SOLUTION: An object detection device comprises: a light projection system that includes a light source (LD); a light receiving element (PD for time measurement) that receives light projected from the light projection system and reflected on an object; and a signal processing circuit (offset providing circuit 44c) that adds an offset signal in which the amount of offset temporally changes to a voltage signal (light receiving signal) based on an output current from the light receiving element. In this case, information on the object can be accurately detected.SELECTED DRAWING: Figure 6 【課題】 物体に関する情報を精度良く検出することができる物体検出装置を提供すること。【解決手段】 物体検出装置は、光源（ＬＤ）を含む投光系と、該投光系から投光され物体で反射された光を受光する受光素子（時間計測用ＰＤ）と、該受光素子の出力電流に基づく電圧信号（受光信号）に、オフセット量が時間的に変化するオフセット信号を加算する信号処理回路（オフセット付与回路４４ｃ）と、を備えている。この場合、物体に関する情報を精度良く検出することができる。【選択図】図６