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

Volume

3

fYear

1996

fDate

13-16 May 1996

Firstpage

1741

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrotechnical Conference, 1996. MELECON '96., 8th Mediterranean

Conference_Location

Bari

Print_ISBN

0-7803-3109-5

Type

conf

DOI

10.1109/MELCON.1996.551293

Filename

551293