Intelligent transport systems (ITS) are promising systems to give excellent solutions for many problems that we face in transport today. We propose an on-board network architecture based on optical IEEE P1394b to realize effective inter-vehicle communications and enable all equipment which freely add and remove to the intra-vehicle network. And according to the proposed architecture, we have developed a 500-Mbit/s low-cost optical transceiver for the intra- and inter-vehicle communication network using a commercially available plastic clad fiber. An LD for the compact disk drive and a large area photodiode were adopted as low-cost and high-speed optical devices, and a logic direct driving type simple circuit having temperature compensation function was developed. Simple assembly technologies such as plastic molding and optical element press-fitting were also developed for mounting to reduce assembly cost. The total cost of the fabricated optical transceiver can be reduced to less than 2/3 of the conventional one. We have performed transmission experiments and vibration tests using our optical transceivers that are mounted in on-board elements and connected to the on-board network, and have confirmed these stable operations. Experimental results show our proposed architecture and fabricated optical transceiver can play a key role in the intra- and inter-vehicle communication network.
Intra- and inter-vehicle communication network using low-cost POF links
IEICE Transactions on Information and Systems ; E85-D , 11 ; 1839-1850
2002
12 Seiten, 24 Quellen
Aufsatz (Zeitschrift)
Englisch
Inter- and intra-vehicle communications
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