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Industrial communication is on its way from field-bus to Ethernet. In an industry 4.0 scenario various applications and branches in automated manufacturing, process industry and intra logistics are affected. Here, Ethernet communication will not be limited to the communication between controllers and devices such as programmable logic controllers (PLC) and sensors and actors, but will also be applied...
Clock synchronization is one of the most essential assets for distributed real-time systems, as sensing, control and actuation require synchronized communication to meet real-time deadlines. We propose a distributed monitoring method to detect if an adversary is interfering with the clock synchronization protocol. The monitor uses certain network indicators and a set of rules to decide about switching...
This paper describes the successes of using high resolution, time-synchronized phasor measurement data from across North America to perform frequency response analysis. The annual analysis is performed to determine the frequency response obligations for each interconnection and Balancing Authority (BA). This analysis utilizes R&D tools developed under industry guidance and Department of Energy...
Atomicity races in ARINC 653 applications are a kind of concurrency bugs which causes nondeterministic behaviors by parallel processes. This paper presents a tool, called AR653, to dynamically detect atomicity races. The tool monitors only synchronization operations and access to shared resources, and analyzes the relation of synchronizations to report atomicity races through a locking discipline...
CAN (Controller Area Network) and TIA-485 are two of the most used standards in fieldbus systems. While CAN ISO IS-11898 includes complete data link layer specifications on top of its physical layer, TIA-485 only addresses the physical layer of the 7-layer OSI model. Other communication parameters like speed, format, and data transmission protocol are not specified by RS-485 in order to provide interoperability...
Being prepared for natural and complex emergencies is a top priority for the UN World Food Programme (WFP). In order to efficiently provide adequate support, WFP has a strong local presence, with more than 80 Country Offices (CO) around the world. The WFP Emergency Preparedness team, in strict cooperation with leading academic institutions and technology experts, develops innovative early warning...
Verification of Gigabit Ethernet MAC (Media Access Control) by using the most advanced verification methodology i.e. UVM (Universal Verification Methodology) has been presented in this paper. The main function of MAC is to forward Ethernet frames to PHY through XGMII (10 Gigabit Media Independent Interface) and to receive the frames from PHY to MAC through the same interface. Verification of IP provides...
Interoperability between shop floor devices and upper layer systems is a key challenge for enabling Internet of Things in industrial applications. Standardized protocols such as IPv6, CoAP, and XML can be used to address this issue. Widely used XML-based technologies such as SenML, EEML, OPC-UA as well as others rely on XML to be able to support a wide range of sensor and actuator applications. However,...
In this paper conceptions and architectural considerations of the OSAMI project and their specializations towards the requirements of the e-health domain by the German subproject (OSAMI-D) are described. Along with the expected shift of healthcare service between stationary towards ambulatory care, a standardized way of integrating medical data acquired at home into the IT infrastructure of hospitals...
Distributed software systems are characterized by increasing autonomy. They often have the capability to sense the environment and react to it, discover the presence of other systems and take advantage of their services, adapt and re-configure themselves in accordance with the internal as well as the global state. Testing this kind of systems is challenging, and systematic and automated approaches...
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