Banca de DEFESA: HEITOR MEDEIROS FLORENCIO

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : HEITOR MEDEIROS FLORENCIO
DATE: 09/12/2019
TIME: 09:00
LOCAL: Núcleo de Pesquisas em Inovação em Tecnolgia da Informação - NPITI
TITLE:

Analytical Model of Link Stability in Industrial Wireless Sensor Networks.

KEY WORDS:

Industrial Wireless Sensor Networks, Link Stability, Networked Control System, ISA 100.11a.

PAGES: 86
BIG AREA: Engenharias
AREA: Engenharia Elétrica
SUBÁREA: Eletrônica Industrial, Sistemas e Controles Eletrônicos
SPECIALTY: Automação Eletrônica de Processos Elétricos e Industriais
SUMMARY:

Wireless Sensor Networks (WSN) have emerged in the industrial environment with the purpose of increasing flexibility and deploying measurement and actuation elements in hard to reach areas. However, due to the peculiarities of wireless communication in the industrial environment, the use of metrics to evaluate the performance of communication links is crucial. An essential factor in assessing network behavior is the stability of links. The stability is a property, but several studies define the stability model using different parameters of the link. This thesis presents an analytical model of link stability based on received signal strength and packet delivery rate. The results obtained through tests performed with different scenarios showed that the analytical model can identify link installability situations when it comes to high variation in received signal strength and low packet delivery. Then, an ISA 100.11a network control system was developed to validate the model proposed in this work. The results obtained with the application of the model in the level control system presented steady state error values below the predetermined maximum limit, while in the control tests that did not consider the link stability factor the error exceeded the limit.

BANKING MEMBERS:
Presidente - 347628 - ADRIAO DUARTE DORIA NETO
Interno - 1149567 - ANDRES ORTIZ SALAZAR
Externo à Instituição - DANIEL LOPES MARTINS
Externo à Instituição - DENNIS BRANDAO - USP
Externo à Instituição - JORGE DANTAS DE MELO - UFRN