METHOD AND APPARATUS FOR DETECTING CAR SHAPE

PURPOSE:To shorten a scanning time and to precisely detect a car shape by scanning the light signals of light emitting and detecting elements up and down to detect the upper surface position of a vehicle and detecting the side surface shape of the vehicle on the basis of the moving distance of a car...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	SHIROMOTO KAZUO
Format:	Patent
Sprache:	eng
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 SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, ORMANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR SIGNALLING TESTING TRAFFIC CONTROL SYSTEMS TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	PURPOSE:To shorten a scanning time and to precisely detect a car shape by scanning the light signals of light emitting and detecting elements up and down to detect the upper surface position of a vehicle and detecting the side surface shape of the vehicle on the basis of the moving distance of a car body detector. CONSTITUTION:A car body detector consists of a light emitting device 5a wherein light emitting elements 81-8n are arranged and a light detecting device 5b wherein light detecting elements 91-9n are arranged corresponding to the light emitting elements. The upper surface position of a car body is detected on the basis of the light detection signal of the light detecting device 5b by an upper surface position detection part 11. The moving distance accompanied by the running of the car body detector is detected on the basis of the pulse signal from a rotary encoder 6 by a moving distance detection part 12. The pulse signal is triggered by a scanning drive part 10 to execute the detection of a car body of each time. A control part 13 controls the start/stop of the detection of the car body and is equipped with a memory 14 to store the car shape data based on the signals from both detection parts 11,12 to shorten a scanning time.