Title :
Throughput analysis of p-CSMA based LonTalk protocols for building management systems
Author :
Vinyes, J. ; Vazquez, E. ; Miguel, T.
Author_Institution :
Dept. de Ingenieria Telematica, Univ. Politecnica de Madrid, Spain
Abstract :
We analyse the feasibility of using a building management system (BMS) with multimedia communications over an automation network, focusing our attention on the requirements and limitations for digital video transmission. First, we address the communications requirements of BMS video information, selecting a quarter of intermediate format (QCIF). We choose an 1.25 Mbit/s LonTalk bus as the BMS communications subnetwork. The LonTalk medium access delay is analysed. Performance figures are obtained for a case study scenario, and we conclude that the selected bus fits our requirements
Keywords :
access protocols; building management systems; carrier sense multiple access; channel capacity; delays; digital communication; field buses; visual communication; 1.25 Mbit/s; 1.25 Mbit/s LonTalk bus; BMS communications subnetwork; BMS video information; LonTalk medium access delay; QCIF; automation network; building management system; communications requirements; digital video transmission; multimedia communications; p-CSMA based LonTalk protocols; performance figures; predictive p-persistent CSMA; quarter of intermediate format; throughput analysis; Access protocols; Automation; Bit rate; Delay; Digital cameras; Digital recording; Displays; Telecommunication standards; Throughput; Video sequences;
Conference_Titel :
Electrotechnical Conference, 1996. MELECON '96., 8th Mediterranean
Conference_Location :
Bari
Print_ISBN :
0-7803-3109-5
DOI :
10.1109/MELCON.1996.551293
