Browse Topic: Systems management
In this paper, we focus on satellite production lines and design and implement a digital twin simulation and verification system for them. This is to improve manual documentation efficiency and provide sufficient process controllability in the small satellites’ batch production and assembly testing. We built a layered architecture. This allows the system to dynamically interact with AIT data management systems, structured process systems, and equipment data by fusing multi-source data. We also develop functional modules that combine lightweight 3D model visualization, dynamic simulation engines, and hybrid scheduling optimization algorithms. These modules can perform twin simulation, execute processes, intelligently schedule production, manage work reporting, conduct intelligent analysis, trigger anomaly alarms, and perform system management. We also dynamically simulate complex workflows like satellite transfer and automated assembly. These workflows are then verified using 3D virtual scene modeling and physical engines. We use time-series analysis to improve scheduling accuracy and multidimensional dynamic monitoring and hierarchical response to enhance production stability. In practice, the system can provide visualized control over the full process of satellite production. This greatly improves assembly efficiency and process controllability. It can also be an extensible digital way for aerospace manufacturing. The use of hierarchical architecture design and multimodal data fusion can be further applied in the complex equipment intelligent manufacturing.
This SAE Recommended Practice provides a framework for the establishment of a software support concept related to the support and supportability of both custom-developed and Off-the-Shelf (OTS) software. This document complements SAE AIR 5121, JA1004, and JA1005 by providing information needed to understand the support aspects that should be covered by a software supportability program. It should be noted that particular information indicated here should not be considered a complete list of all aspects of the support concept. In particular, the information should not be confused with a list of data elements. This document has general applicability to all sectors of industry and commerce and to all types of equipment that contain software. The target audience for this document includes software acquisition organizations, software logisticians, developers, supporters, and customers. This document is intended to be guidance for business purposes and should be applied when it provides a value-added basis for the business aspects of development, use, and sustainment of support-critical software.
The development of Digital Twin (DT) has become popular. A dominant description of DT is that it is a software representation that mimics a physical object to portray its real-world performance and operating conditions of an asset. It uses near real-time data captured from the asset and enables proactive optimal operation decisions. There are many other definitions of DT, but not many explicit evaluations of DT performance found in literature. The authors have an interest to investigate and evaluate the quality and stability of appropriate DT techniques in real world aircraft Maintenance, Repair, and overhaul (MRO) activities. This paper reviews the origin of DT concept, the evolution and development of recent DT technologies. Examples of DTs in aircraft systems and transferable knowledge in related vehicle industries are collated. The paper contrasts the benefits and bottlenecks of the two categories of DT methods, Data-Driven (DDDT) and Model-Based (MBDT) models. The paper evaluates the applicability of the two models to represent vehicle system management. The authors present their methodological approach on Predictive Maintenance (PM) development basing on reliable DT models for vehicle systems. This paper contributes to design, operation, and support of aircraft/vehicle systems.
Ethernet is widely used among consumer and commercial systems throughout the world, and it is well understood by all levels of end-users. Due to economies of scale, coupled with availability of industrial-grade devices, Ethernet has also become suitable, and often dominant, for many types of more rigorous applications. Unfortunately, industrial-grade Ethernet devices are often associated with high costs and complex network management and configuration requirements.
Harwin Portsmouth, United Kingdom
Industrial programmable logic controllers (PLCs) and their associated operations technology (OT) software and communication protocols have traditionally been best suited for localized installations. They lacked the computing performance, connectivity options, and security needed to easily integrate them with higher-level information technology (IT) resources.
The latest data acquisition and signal processing devices are critical for capturing and manipulating wideband sensor signals for real-time radar, electronic countermeasures, EW, and SIGINT systems. These include new data converter technology and advanced FPGA designs, including the RFSoC (radio frequency system-on-chip).
ABSTRACT Addressing the well-established need for accurate cyber situational awareness on military vehicles and weapons platforms, we developed a well-tested, robust Intrusion Detection System – Fox Shield™ – currently rated TRL-8. The system is described and the lessons learned during its development are discussed. The basic principles of our anomaly detectors are outlined, and the details of our innovative warning-aggregating Fuser are presented. Many attack detection examples are presented, using a publicly available CANbus dataset. Citation: E.I. Novikova, V. Le, M. Weber, C. Andersen, S.N. Hamilton, “Best Practices For Ground Vehicle Intrusion Detection Systems”, In Proceedings of the Ground Vehicle Systems Engineering and Technology Symposium (GVSETS), NDIA, Novi, MI, Aug. 13-15, 2020.
This SAE Information Report J2931/7 establishes the security requirements for digital communication between Plug-In Electric Vehicles (PEV), the Electric Vehicle Supply Equipment (EVSE) and the utility, ESI, Advanced Metering Infrastructure (AMI) and/or Home Area Network (HAN).
This SAE Information Report J2931/7 establishes the security requirements for digital communication between Plug-In Electric Vehicles (PEV), the Electric Vehicle Supply Equipment (EVSE) and the utility, ESI, Advanced Metering Infrastructure (AMI) and/or Home Area Network (HAN).
ABSTRACT Communications has come a long way from the two dimensional model provided by voice and data. Today complete situational awareness requires bringing a third dimension, video, into the mix. Implementing this unified view into today’s military vehicles calls for a unit with a well thought out design that interfaces thoroughly with other equipment and minimizes SWAP-C impact. This paper addresses the efficient convergence of video with existing voice and data presenting unified communications into a single SWAP-C device.
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