Automated Tests for automotive Instrument Panel cluster Based on Machine Vision

This paper approaches the use of machine vision as an automation tool for verification tests in automotive Instrument Panel Cluster (IPC). A computer integrated with PXI modular instruments, machine vision software and Integrated Development Environment (IDE) composes the test system. The IPC is verified in closed-loop using the Hardware-in-the-Loop (HiL) technique in which the HiL system simulates all Electronic Control Units (ECUs) that interact with the IPC. Every simulated ECUs signals are sent to the IPC over CAN (Controller Area Network) bus or hardwired I/O using PXI modules integrated with IDE and its responses are captured by cameras. Using machine vision such images are subjected to Digital Image Processing (DIP) techniques as pattern matching, edge detection and Optical Character Recognition (OCR), which can be applied to interpret speedometer, tachometer, fuel gauges, display and warning lights. The results obtained after data processing are compared to the expected ones, which are defined by the IPC technical specifications. The use of machine vision makes possible the automation of clusters verification test bringing advantages such as increased reliability, repeatability, cost and testing time reduction.

• Record URL:
  https://doi.org/10.4271/2016-36-0235
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • da Silva Lopes, Juliana Lima
  • Moreira Marques, Cleber Albert
  • de Moura Vasconcelos, Genildo
  • Barreto Vieira, Rafael
  • Ventura de Melo Ferreira, Flavio Fabricio
  • Souza Bomfim, Marcelo Henrique
• Conference:
  • 25th SAE BRASIL International Congress and Display
  • Location: Sao Paulo , Brazil
  • Date: 2016-10-25 to 2016-10-27
• Publication Date: 2016-10-25

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Serial:
  • SAE Technical Paper
  • Publisher: Society of Automotive Engineers (SAE)
  • ISSN: 0148-7191
  • EISSN: 2688-3627
  • Serial URL: http://papers.sae.org/

Subject/Index Terms

• TRT Terms: Automation; Electronic controllers; Hardware in the loop simulation; Instrument panels; Machine vision; Test procedures; Vehicle tests
• Uncontrolled Terms: Electronic control units
• Subject Areas: Data and Information Technology; Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01688749
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 2016-36-0235
• Files: TRIS, SAE
• Created Date: Dec 18 2018 9:24AM