In a competitive business environment, producing goods on time plays a very important role. In addition to regular control complexities in manufacturing environments, some unforeseen technical problems may affect the efficiency of production. The breakdown of automated guided vehicles (AGV) during manufacturing is one of these problems. This problem generally requires an instantaneous solution ...

This paper proposes a new design for a bi-directional automated guided vehicle (AGV) system, in which two AGVs can exchange their loads, their scheduled transportation tasks, and even their vehicle numbers when they move in opposite directions. With this load-exchangeable AGV (EX-AGV) system, common problems such as conflicts and deadlocks will not occur; therefore, the load of an AGV is always...

OBJECTIVES Angiotensin converting enzyme inhibitors (ACEI) have been shown to decrease aortic growth velocity (AGV) in Marfan syndrome (MFS). We sought to compare the effect of β-blockers and ACEI on AGV in MFS. STUDY DESIGN We retrospectively reviewed all data from all patients with MFS seen at Arkansas Children's Hospital between January 1, 1976 and January 1, 2013. Generalized least square...

Flexible manufacturing system (FMS) enhances the firm's flexibility and responsiveness to the ever-changing customer demand by providing a fast product diversification capability. Performance of an FMS is highly dependent upon the accuracy of scheduling policy for the components of the system, such as automated guided vehicles (AGVs). An AGV as a mobile robot provides remarkable industrial capa...

To improve the throughput performance of autonomous guide vehicle (AGV) unmanned storage system, a two-stage mathematical model was established. The also considers equipment configuration AGV system and AGV- picking stations dual resource coordination scheduling problem. In equipment-task phase, aims at shortest order completion time, while layout minimum operating cost. solve model, two-layer ...

PURPOSE To compare 3-year outcomes and complications of the Ahmed FP7 Glaucoma Valve (AGV) (New World Medical, Cucamonga, CA) and the Baerveldt Glaucoma Implant (BGI) 101-350 (Abbott Medical Optics, Abbott Park, IL) for the treatment of refractory glaucoma. DESIGN Multicenter, randomized, controlled clinical trial. PARTICIPANTS A total of 276 patients: 143 in the AGV group and 133 in the BG...

PURPOSE To compare the 5-year outcomes of the Ahmed FP7 Glaucoma Valve (AGV) (New World Medical, Cucamonga, CA) and the Baerveldt 101-350 Glaucoma Implant (BGI) (Abbott Medical Optics, Abbott Park, IL) for the treatment of refractory glaucoma. DESIGN Multicenter, randomized, controlled clinical trial. PARTICIPANTS A total of 276 patients, including 143 in the AGV group and 133 in the BGI gr...

Localization and navigation technology is one of the key technologies for Automated Guided Vehicle (AGV). In this paper we develop an AGV navigation system utilizing commercial Bluetooth GPS. WGS-84 coordinates system is converted to space rectangular coordinate system, which is combined with orientation information, initial position and gesture of AGV can be determined. Experimental result sho...

Abstract A typical manufacturing system requiring a high degree of automation usually includes warehouse, AGV, CNC, assembly line and laser marking equipment. Among them, AGV plays an important role on the overall operating quality efficiency. This paper studies control strategy under background system. Firstly two modes motion path are defined; flow chart movement between any points in is anal...

As a kind of wheeled mobile robot used in intelligent logistics system, AGV is mainly used for automatic material transportation, the precise positioning and path tracking is the assurance of accurate material transportation. In this article, the laser coordinate positioning technology is used to realize accurate positioning for AGV, a new method of target reference point selection is put forwa...