Home  About us  Contact
 

Inspection Task (inspection + task)

Distribution by Scientific Domains
Engineering100%

Selected Abstracts

Use of aiding and feedback in improving visual search performance for an inspection task

HUMAN FACTORS AND ERGONOMICS IN MANUFACTURING & SERVICE INDUSTRIES, Issue 2 2003
Samir Chabukswar
The objective of this research is to evaluate the effect of providing online feedback, process, and process plus performance on visual search performance for a printed circuit board inspection task. A training aid was developed that provided process and process plus performance feedback and enabled a comparison between the two feedback strategies. Two search strategies,search by area and search by component,were adopted to complete the task, and their sensitivity to the type of feedback and search performance was evaluated. Providing process plus performance feedback helped in improving speed and accuracy, whereas area search strategy proved beneficial in improving search speed for both feedback strategies. Graphical feedback on the component location helped in locating more component defects than area defects. © 2003 Wiley Periodicals, Inc. Hum Factors Man 13: 115,136, 2003. [source]

CONOPS and autonomy recommendations for VTOL small unmanned aerial system based on Hurricane Katrina operations

JOURNAL OF FIELD ROBOTICS (FORMERLY JOURNAL OF ROBOTIC SYSTEMS), Issue 8 2009
Kevin S. Pratt
This field study examines vertical takeoff and landing (VTOL) small unmanned aerial system (SUAS) operations conducted as part of an 8-day structural inspection task following Hurricane Katrina in 2005. From the observations of the 32 flights spread over 12 missions, four key findings are identified for concept of operations (CONOPS) and the next level of artificial intelligence for rotary-wing SUASs operating in cluttered urban environments. These findings are (1) the minimum useful standoff distance from inspected structures is 2,5 m, (2) omnidirectional sensor capabilities are needed for obstacle avoidance, (3) global positioning system waypoint navigation is unnecessary, and (4) these operations require three operators for one SUAS. Based on the findings and other observations, a crewing organization and flight operations protocol for SUASs are proposed. Needed directions in research and development are also discussed. These recommendations are expected to contribute to the design of platforms, sensors, and artificial intelligence as well as facilitate the acceptance of SUASs in the workplace. © 2009 Wiley Periodicals, Inc. [source]

Evaluation of best system performance: Human, automated, and hybrid inspection systems

HUMAN FACTORS AND ERGONOMICS IN MANUFACTURING & SERVICE INDUSTRIES, Issue 2 2003
Xiaochun Jiang
Recently, 100% inspection with automated systems has seen more frequent application than traditional sampling inspection with human inspectors. Nevertheless, humans still outperform machines in most attribute inspection tasks. Because neither humans nor automation can achieve superior inspection system performance, hybrid inspection systems where humans work cooperatively with machines merit study. In response to this situation, this research was conducted to evaluate three of the following different inspection systems: (1) a human inspection system, (2) a computer search/human decision-making inspection system, and (3) a human/computer share search/decision-making inspection system. Results from this study showed that the human/computer share search/decision-making system achieve the best system performance, suggesting that both should be used in the inspection tasks rather than either alone. Furthermore, this study looked at the interaction between human inspectors and computers, specifically the effect of system response bias on inspection quality performance. These results revealed that the risky system was the best in terms of accuracy measures. Although this study demonstrated how recent advances in computer technology have modified previously prescribed notions about function allocation alternatives in a hybrid inspection environment, the adaptability of humans was again demonstrated, indicating that they will continue to play a vital role in future hybrid systems. © 2003 Wiley Periodicals, Inc. Hum Factors Man 13: 137,152, 2003. [source]