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Authors
Advisor(s)
Abstract(s)
Na fase de produção das indústrias, existe a necessidade de validar o correto funcionamento
de um dado produto, de forma a verificar que este está a operar como
previsto. A verificação da continuidade elétrica é fundamental para que se confirme
a integridade do produto final.
A motivação deste projeto recai na vontade da empresa possuir um sistema capaz
de efetuar testes de continuidade automatizados, visto que, até à atualidade, este
procedimento tem sido realizado com recurso a multímetro, sendo propício a erros
humanos e demora um tempo considerável na validação da cablagem. Este projeto
foca-se no desenvolvimento de um sistema automatizado capaz de efetuar testes
de continuidade na cablagem e validar o funcionamento dos sensores presentes na
máquina da empresa, o microdatacenter. No desenvolvimento do sistema responsável
por efetuar o teste de continuidade automatizado, recorreu-se a componentes de
baixo custo financeiro como microcontrolador e multiplexers. O sistema rapidamente
verifica as conexões elétricas das diferentes zonas da máquina e o resultado do teste
de continuidade é apresentado numa Graphical User Interface (GUI), permitindo
ao operador verificar em tempo real a continuidade da cablagem testada e retificar
eventuais erros detetados.
Para além do teste de continuidade, o presente projeto, recorrendo à interface
gráfica, também é capaz de efetuar leituras de dados provenientes de sensores baseados
em Modbus e SNMP. A leitura de dados é crucial para verificar o correto
funcionamento de diversos sensores presentes na máquina. Se o teste de continuidade
validar a integridade da cablagem mas os dados dos sensores não são lidos, o sistema
notifica uma potencial falha no equipamento, ajudando o operador a identificar e
substituir o sensor danificado.
As principais vantagens deste sistema, são a velocidade, fiabilidade e baixo custo
financeiro do sistema desenvolvido. O impacto deste projeto é consideravelmente
significativo para a empresa, uma vez que esta ferramenta ao ser utilizada pelos
operadores diminui erros humanos e tempo de verificação da cablagem, aumentando
a velocidade de produção e consequentemente produzindo mais máquinas em menos tempo.
In the industrial production stage, there is a need to validate the correct functioning of a given product, in order to verify that it is operating as expected. In products that involve wire harness, checking for eletrical continuity is essential to confirm the integrity of the final product. The motivation for this project lies in the company’s desire to have a system capable of automated continuity testing, since this procedure has been carried out using a multimeter to this day, which is prone to human errors and takes a considerable amount of time to validate the cabling. This project aims on the development of an automated system capable of performing continuity tests in the wiring and to validate the correct functionality of the sensors present in the company machine, the microdatacenter. During the development of the system responsible for carrying out the automated test continuity, low financial cost components were used such as microcontroller and multiplexers. The system quickly checks electrical connections of different sectors of the machine and the results on the continuity test are presented in a Graphical User Interface (GUI), allowing the operator to check in real time the continuity of the test cabling, and in some cases rectify any errors detected. In the addition to the continuity test, this project, using the GUI is also capable of reading data from low-end sensors based on Modbus and SNMP. Reading data is crucial to verify the correct operability of various sensors present in the machine. If the continuity test validate the integrity of the cabling, but sensor data can’t be read, the system notifies a pontential equipment failure, helping the operator to identify and replace the damaged sensor. The main advantages of using this system are evident in the speed, reliability and low financial cost of the developed system. The positive impact of this project, is considerably significant for the company, since this tool can be used by operators, reduces human error and time for checking the cabling, increasing production speed and consequently, producing more in less time.
In the industrial production stage, there is a need to validate the correct functioning of a given product, in order to verify that it is operating as expected. In products that involve wire harness, checking for eletrical continuity is essential to confirm the integrity of the final product. The motivation for this project lies in the company’s desire to have a system capable of automated continuity testing, since this procedure has been carried out using a multimeter to this day, which is prone to human errors and takes a considerable amount of time to validate the cabling. This project aims on the development of an automated system capable of performing continuity tests in the wiring and to validate the correct functionality of the sensors present in the company machine, the microdatacenter. During the development of the system responsible for carrying out the automated test continuity, low financial cost components were used such as microcontroller and multiplexers. The system quickly checks electrical connections of different sectors of the machine and the results on the continuity test are presented in a Graphical User Interface (GUI), allowing the operator to check in real time the continuity of the test cabling, and in some cases rectify any errors detected. In the addition to the continuity test, this project, using the GUI is also capable of reading data from low-end sensors based on Modbus and SNMP. Reading data is crucial to verify the correct operability of various sensors present in the machine. If the continuity test validate the integrity of the cabling, but sensor data can’t be read, the system notifies a pontential equipment failure, helping the operator to identify and replace the damaged sensor. The main advantages of using this system are evident in the speed, reliability and low financial cost of the developed system. The positive impact of this project, is considerably significant for the company, since this tool can be used by operators, reduces human error and time for checking the cabling, increasing production speed and consequently, producing more in less time.
Description
Keywords
Continuity test Functionality test GUI System Microcontroller Multiplexers Cabling test Teste de continuidade, Teste de funcionalidade Sistema Microcontrolador Cabos de teste