Mobile AR System using QR Code as Marker for EHV Substation Operation Management

Abstract

Augmented Reality (AR), is the extension of the virtual reality technology, which bring together real environment and virtual information, text, video, image etc. to experience digital things in a real world environment. Computing device is necessary to user to interact with in real-virtual fusion environment. This paper presents architecture design and implementation of android mobile augmented reality system for Extra High Voltage (EHV) substation to ensure safe and correct operation of switches and its real time status confirmation from sub-station SCADA. It is based on web application and mobile android system. QR code as a marker is generated in a standardized and efficient way for unique identification of each switch of Substation. Further it is integrated with existing SCADA for obtaining real time switch ON/OFF status by means of web service. This application assists the operator of EHV substation with continuous audio and visual support to take live equipment out of service sequentially without bypassing the interlock for maintenance activity. Augmenting the manual process of operation with this mobile app eliminates errors as the application does not allow the operator to proceed in case of any mistake or mismatch from predefined Standard Operating Procedures (SOP). This greatly enhances the safety of personnel and equipment.