| Summary: | This report describes a thesis work carried out at ABB Robotics in Västerås. The objective of this thesis is to find technologies and equipments for wireless data transfer suitable for the present and future needs of ABB Robotics Remote Service for large installations in industrial environments. ABB Robotics has a Remote Service solution to securely gather information from robots, manage alarms and potentially execute remote commands by ABB Robotics. This solution consists of an intelligent Service Box plugged to the robot. This Service Box is also connected through GPRS or directly through Internet to create a secure VPN connection to a central Remote Service server. The Remote Service Box is well suited for small customers with 1-10 robots with plug and play installation, but show limitations at a larger scale of deployment due to equipment costs, network and installation complexity. A new Service Box is planned that will accommodate future added functionality to Remote Service. This Service Box will require new network solutions as the added functionality is depending on a higher bandwidth than the GPRS networks can deliver. I have surveyed most existing wireless networking technologies and analyzed them withrespect to function, cost and availability which provide a knowledge base that makes it possible to find suitable solutions. When the most suitable technologies are identified a survey was performed to find equipments that meet the requirements at the lowest cost. A new hierarchical network topology is proposed that will lead to cost savings by replacing multiple WAN connections in the present solution with a network switch and single WAN connection to Internet. As manufacturers of network equipments for industrial environments are relatively few, alternative solutions were also investigated in order to find the most cost effective solutions. The proposed network topology together with the data from the surveys lead to recommendations on using Wi-Fi in the wireless LAN and a 3G mobile network for the WAN connection to Internet, as well as recommendations on alternative network equipments that potentially can lead to substantial savings when the new network solutions are implemented.
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