نتایج جستجو برای: agv
تعداد نتایج: 699 فیلتر نتایج به سال:
− The CONTROLAB AGV is an electric tricycle vehicle that, following issues from client stations connected to the network office, moves autonomously through an office environment with a known floorplan and uses an electronic stick, which consists of infrared sensors, to detect and avoid unknown obstacles. This paper presents the global real-time solution for the CONTROLAB AGV to move smoothly wi...
RATIONALE Glaucoma drainage implant surgery is a treatment option for the management of neovascular glaucoma. However, tube obstruction by blood clot after Ahmed glaucoma valve (AGV) implantation is an unpredictable clinically challenging situation. PATIENT CONCERNS-DIAGNOSES-INTERVENTIONS We report 4 cases using intracameral air injection for the prevention of the tube obstruction of AGV by ...
Purpose. To compare the changes in corneal endothelial cells after pars plana Ahmed glaucoma valve (AGV) implantation with those after the anterior chamber AGV implantation for refractory glaucoma. Methods. The medical records of 18 eyes with pars plana implantation of AGV (ppAGV) were reviewed retrospectively and were compared with 18 eyes with the anterior chamber AGV (acAGV) implant. The pre...
BACKGROUND This study aims to compare the efficacy and safety of the Ahmed glaucoma valve (AGV) with the Baerveldt glaucoma implant (BGI) in glaucoma patients. METHODS Databases were searched to identify studies that met pre-stated inclusion criteria, involving randomized controlled clinical trials (RCTs) and non-randomized controlled clinical trials. Treatment effect was analyzed using a ran...
در این مقاله الگوریتمی یکپارچه برای برنامه ریزی همزمان AGV ها و ماشین آلات با استفاده از شبکه های پتری و الگوریتم های جستجوی ابتکاری ارائه شده است. در ابتدا با استفاده از شبکه های پتری زمانی مدل مساله مرکب از سه مدول AGV ،محصول و ماشین آلات ایجاد میشود .مدول AGV برای مدلسازی حرکت AGVها،محصول برای مدلسازی فرایند تولید و حرکت قطعات و ماشین آلات برای مدلسازی تخصیص ماشین آلات طراحی شده است. در ادا...
This paper proposes a new obstacle avoidance algorithm for the CONTROLAB AGV which uses a similar strategy adopted by a blind person to avoid obstacles while walking. The AGV moves within an office environment with a known floorplan and uses an "electronic stick" consisting of infrared sensors to detect unknown obstacles. Initially a global potential field function is defined for each floorplan...
Trajectory tracking is an essential capability of robotics operation in industrial automation. In this article, an artificial neural controller is proposed to tackle trajectory-tracking problem of an autonomous ground vehicle (AGV). The controller is implemented based on fractional order proportional integral derivative (FOPID) control that was already designed in an earlier work. A non-holonom...
In this paper, we consider real-time tracking of an Autonomous Guided Vehicle (AGV) in an indoor industrial scenario. An on-board odometer provides information about the dynamic state of the AGV, allowing to predict its pose (position and orientation). At the same time, an external Ultra Wide Band (UWB) wireless network provides the information necessary to compensate the error drift accumulate...
An analysis of the transportation systems used in flexible manufacturing systems is introduced in the paper. Based on the analysis an approach to the modelling and control of an automatic guided vehicles system (AGVS) is presented. It is aimed at a specifically delimited class of the AGV transportation systems. A special group of the colored Petri nets interpreted for control is used for the pr...
Due to globalization and the growth of international trade, many container terminals are trying to improve performance in order to keep up with demand. One technology that has been proposed is the use of Automated Guided Vehicles (AGVs) in the handling of containers within terminals. Recently, a new generation of AGVs has been developed which makes use of cassettes that can be detached from the...
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