OBJECT DETECTOR, SENSING DEVICE, AND MOBILE BODY DEVICE

PROBLEM TO BE SOLVED: To provide an object detector which can suppress reduction in a detected distance in a light projection range.SOLUTION: The object detector includes: a light projection system; a light detector for receiving light which is projected by the light projection system and is reflect...

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Bibliographische Detailangaben
1. Verfasser:	NISHIO TAKUEI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	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 PERFORMING OPERATIONS PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SIGNALLING TESTING TRAFFIC CONTROL SYSTEMS TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an object detector which can suppress reduction in a detected distance in a light projection range.SOLUTION: The object detector includes: a light projection system; a light detector for receiving light which is projected by the light projection system and is reflected or is scattered by an object; a binarization circuit for receiving an input of a light receiving signal of the light detector and detecting the light receiving signal based on a threshold voltage; and threshold voltage variable means 200 for making the threshold voltage different between when light is projected to a part of the light projection range (detection range) of the light projection system and when light is projected to another part of the range. In that case, there can be provided an object detector capable of suppressing reduction in a detected distance in the light projection range.SELECTED DRAWING: Figure 9 【課題】投光範囲における検出距離の低下を抑制できる物体検出装置を提供する。【解決手段】物体検出装置は、投光系と、該投光系から投光され物体で反射もしくは散乱された光を受光する光検出器と、該光検出器の受光信号が入力され、該受光信号を閾値電圧を基準に検出する二値化回路と、投光系の投光範囲（検出範囲）の一部の領域へ光が投光されるときと他の一部の領域へ光が投光されるときとで閾値電圧を異ならせる閾値電圧可変手段２００と、を備えている。この場合、投光範囲における検出距離の低下を抑制可能な物体検出装置を提供できる。【選択図】図９