. Object-oriented modelling provides a new point of view to focus a flexible manufacturing system using organized models similar to the Flexible Manufacturing Cell (FMC) presented in this paper which composed by Flexible Manufacture Modules (FMMs) and an automated guided vehicle (AGV). The implemented FMC working with revolution specimens, with predetermined measures length, are composed mainly...

The control, navigation and interaction with the working environment of Automated Guided Vehicles (AGV) are indispensable processes for material handling in a Flexible Manufacturing System(FMS) . In this paper, the prospect of using an optical mouse as an economical yet efficient alternative sensor for AGV navigation and control is depicted. This work emphasizes on the supervision and surveilla...

This paper describes the intelligent Automated Guided Vehicle (AGV) control system using Fuzzy Rule Interpolation (FRI) method. The AGV used in this paper is a virtual vehicle simulated using computer. The purpose of the control system is to control the simulated AGV by moving along the given path towards a goal. Some obstacles can be placed on or near the path to increase the difficulties of t...

OBJECTIVES To evaluate the long-term efficacy of intraocular pressure reduction and complications of Ahmed glaucoma valve (AGV) implantation in children with primary congenital glaucoma. METHODS The medical records of patients with primary congenital glaucoma who underwent AGV implantation with a minimum follow-up of 6 months were reviewed. The primary outcome measure was cumulative probabili...

OBJECTIVE To compare the efficacy and safety of Ahmed glaucoma valve implantation (AGV) with trabeculectomy in the management of glaucoma patients. METHODS A comprehensive literature search (PubMed, Embase, Google, and the Cochrane library) was performed, including a systematic review with meta-analysis of controlled clinical trials comparing AGV versus trabeculectomy. Efficacy estimates were...

PURPOSE To compare changes in corneal endothelial cell density (CECD) after Ahmed glaucoma valve (AGV) implantation and trabeculectomy. METHODS Changes in corneal endothelium in patients that underwent AGV implantation or trabeculectomy were prospectively evaluated. Corneal specular microscopy was performed at the central cornea using a non-contact specular microscope before surgery and 6 mon...

BACKGROUND To evaluate the efficacy of Ahmed Glaucoma Valve (AGV) surgery and the optimal interval between penetrating keratoplasty (PKP) and AGV implantation in a population of Asian patients with preexisting glaucoma who underwent PKP. METHODOLOGY/PRINCIPAL FINDINGS In total, 45 eyes of 45 patients were included in this retrospective chart review. The final intraocular pressures (IOPs), gra...

A fuzzy approach to collision avoidance for automated guided vehicle (AGV) navigation is proposed. Static obstacles with no a priori position information as well as moving obstacles with unknown trajectories are considered in this study. Intuitive and subjective human ideas of collision avoidance are modeled into fuzzy rules. Fuzzy logic is applied in the inference procedure for AGV navigation,...

The National Institute of Standards and Technology‟s Intelligent Systems Division has been researching several areas leading to safe control of manufacturing vehicles to improve automated guided vehicle (AGV) safety standards. The research areas include:  AGV safety and control based on advanced two-dimensional (2D) sensors that detect moving standard test pieces representing humans;  Ability...

Currently, connict-free routing in AGV systems is established by means of one of the following three approaches: (i) the problem elimination through the adoption of a segmented path ow or tandem queue connguration, (ii) the identiication of imminent collisions through forward sensing and their aversion through vehicle backtracking and/or rerouting, or (iii) the imposition of zone control and ex...