The Journal of the Institute of Electrical Installation Engineers of Japan
Online ISSN : 2188-6946
Print ISSN : 0910-0350
ISSN-L : 0910-0350
Volume 29 , Issue 6
Showing 1-19 articles out of 19 articles from the selected issue
  • Tomotaka Sato, Yahiko Kawakita, Chuzo Ninagawa
    2009 Volume 29 Issue 6 Pages 455-460
    Published: 2009
    Released: November 12, 2014
    This paper studies a practical prediction method tor data transmission performance of WEB building remote monitoring system over the Internet. Taking a WEB gateway for packaged air-conditioners as an example,field tests over inter-continental Internet have been carried out to measure the WEB monitoring screen access time as well as the PING round trip time and packet loss rate. The WEB monitoring data transmission times are calculated by a theoretical TCP/IP throughput equation using the measured PING round trip times and loss rates. The results of field tests and theoretical calculations matched well enough for preliminary consideration of the data transmission performance of the Internet WEB monitoring systems.
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