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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Testing of ZigBee wireless modems
 Kasper, Robin ; Molnár, Karol (referee) ; Martinásek, Zdeněk (advisor)
This thesis deals with the testing of wireless radio modems CDX800. Modems communicate in the unlicensed 869MHz band and are based on the ZigBee standard. The first chapter is devoted to the description of this standard. Thesis aims to test the modems according to RFC2544 and RFC1242 recommendations for testing networks, which are discussed in the work. For testing of the network in accordance with those recommendations have been selected hardware testers Trend Unipro GbE. Testers are primarily intended for Ethernet networks, and therefore it was necessary to use converters from Ethernet to serial line which modems use to communicate with other devices. Measurements of the testers were unsuccessful by virtue of inappropriate choice of converters. The work shows potential substitute for these converters. Furthermore, the work deals with testing the modems in terms of radio range on the line of sight and in build-up area. For this purpose was chosen service program Radwin. At the conclusion of the work was created network design for decentralized wastewater treatment for the community Podbřezí from the measured parameters. Designed network is composed of 50 stations and one control center.
Detailed record
Testing of ZigBee wireless modems
 Kasper, Robin ; Molnár, Karol (referee) ; Martinásek, Zdeněk (advisor)
This thesis deals with the testing of wireless radio modems CDX800. Modems communicate in the unlicensed 869MHz band and are based on the ZigBee standard. The first chapter is devoted to the description of this standard. Thesis aims to test the modems according to RFC2544 and RFC1242 recommendations for testing networks, which are discussed in the work. For testing of the network in accordance with those recommendations have been selected hardware testers Trend Unipro GbE. Testers are primarily intended for Ethernet networks, and therefore it was necessary to use converters from Ethernet to serial line which modems use to communicate with other devices. Measurements of the testers were unsuccessful by virtue of inappropriate choice of converters. The work shows potential substitute for these converters. Furthermore, the work deals with testing the modems in terms of radio range on the line of sight and in build-up area. For this purpose was chosen service program Radwin. At the conclusion of the work was created network design for decentralized wastewater treatment for the community Podbřezí from the measured parameters. Designed network is composed of 50 stations and one control center.
Detailed record

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