OPTICAL BEACON

OPTICAL BEACON

PROBLEM TO BE SOLVED: To expand a DL communication area without requiring angular adjustment of an LED for an optical beacon communicating optically with an in-vehicle device in a running vehicle in a predetermined communication area.SOLUTION: The optical beacon comprises a light projection part tha...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: HAYAMA KOJI
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PHYSICS
SIGNALLING
TRAFFIC CONTROL SYSTEMS
TRANSMISSION
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To expand a DL communication area without requiring angular adjustment of an LED for an optical beacon communicating optically with an in-vehicle device in a running vehicle in a predetermined communication area.SOLUTION: The optical beacon comprises a light projection part that emits DL beams having DL information. The light projection part comprises a plurality of near-infrared LEDs 71 that emit the DL beams. Each of the near-infrared LEDs 71 is an SMD and has a full angle at half maximum of 60° or more.