The purpose of this paper is to develop a kind of low cost measuring system based on binocular vision sensor to detect both the weld pool geometry and root gap…
The purpose of this paper is to develop a kind of low cost measuring system based on binocular vision sensor to detect both the weld pool geometry and root gap simultaneously for robot welding process.
Two normal charge coupled device cameras are used for capturing clear images from two directions; one of them is used to measure the root gap and another one is used to measure the geometric parameters of the weld pool. Efforts are made from both hardware and software aspects to decrease the strong interferences in pulsed gas tungsten arc welding process, so that clear and steady images can be obtained. The grey level distribution characteristics of root gap edge and weld pool edge in images are analyzed and utilized for developing the image processing algorithms.
A solid foundation for seam tracking and penetration control of robot welding process can be established based on the binocular vision sensor.
The results show that the algorithms can extract the root gap edges and the contour of weld pool effectively, and then some geometric parameters can be calculated from the results.
The binocular vision system provides a new method for sensing of robot welding process.
With precursor software dating to 1972, multi‐LIS became the first commercially available, fully integrated library system in North America to run on the Unix operating system. In 1988, multiLIS developers, Sobeco Ernst & Young Inc. (SEY), ported multiLIS software to the MIPS Reduced Instruction Set Computer (RISC) processor, making it the First fully integrated software program to be available on a RISC platform. multiLIS fully supports both CAN/MARC and USMARC as well as the monographs specifications of UNIMARC. As the multiLIS software was developed in a resource‐sharing environment, consortiums are a natural market for the multiLIS product.
Global/national policy planning is guided by economic methods and predictions of growth, where indicators of success are measured according to a dominant view of progress…
Global/national policy planning is guided by economic methods and predictions of growth, where indicators of success are measured according to a dominant view of progress and sustainable development. Yet, despite widespread ratification of the Declaration on the Rights of Indigenous Peoples, Indigenous Peoples remain unrepresented in this dominant view. The structural and historical forces informing global policy thus inadvertently produce a pathway of development that is characterized by political, economic, and social exclusion where Indigenous Peoples’ agency, heritage, and culture remain marginalized. I argue that socio-cultural nuance (“the complete story”) is critical to policy planning if we are to honor the principal aim of the Sustainable Development Goals – “leave no-one behind”. This and other policy frameworks need an approach that is neither framed by Eurocentric objectives nor bound by measurable indicators. This requires consideration of Indigenous Worldviews in a way that mediates diverse social, economic, and political factors. In this chapter, I examine the limitations in current policy consultation practice, with a specific focus on the extractive industries sector, and examine the ways in which engagement with Indigenous Peoples’ “complete story” might inform policy in the pursuit of a sustainable development that leaves no-one behind and creates a bridge between dominant and marginalized forms of knowledge.