Browse Topic: Internet

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Object Tracking Comparison for Automated Vehicles Using MathWorks Toolsets2021-01-011004/06/2021
Object trackers are a tool to achieve accurate object state estimation over time. Due to their complexity, a framework to experiment with different variations of trackers and their subcomponents is desired. This drove the authors research and experimentation with object tracking using MathWorks toolsets. In this paper, three object trackers - Point Target Tracker (PTT), Gamma Gaussian Inverse Wishart Probability Hypothesis Density (GGIW-PHD), and Gaussian Mixture Probability Hypothesis Density (GM-PHD) - are compared in simulation for track statistics and object/track accuracy. The results show that a rectangular GM-PHD multi object tracker outperforms the other trackers. A follow up is shown using real-world data and the process used to get the sensor data into the appropriate MathWorks format. The impact of COVID-19 prevented the collection of ground truth data so the real-world data cannot be compared using the same metrics. For this reason, the simulation portion of this paper will
Bassett, Alex, Cicotte, David, Currier, Patrick
CABIN ARCHITECTURE FOR WIRELESS DISTRIBUTION SYSTEMARINC820 (Current)08/13/2019
This document defines a secure Wi-Fi distribution network installed in the aircraft passenger cabin for passenger and crew use. Carry-on Portable Electronic Devices (PEDs) such as smart phones, tablets, and laptops may use this network to access public internet services provided on the aircraft.
Airlines Electronic Engineering Committee
Guaranteed Timing Behavior Begins with an Established Ethernet Backbone2016-01-006104/05/2016
Increasingly, Ethernet is being used in automotive as a vehicle network backbone. It is ideal for service-oriented communications; streamed communications, such as Audio/Video Bridging (AVB) [1]; and Diagnostics over Internet Protocol (DoIP) [2] communications - areas in which high-bandwidth and reliable performance are essential. Designers are accustomed to network communication systems CAN, LIN, and FlexRay, but how will the timing performance be verified in an Ethernet network? This paper looks at network-wide timing analysis challenges where a mixture of CAN, FlexRay, and Ethernetbased busses co-exist. It is also worth noting that the AUTOSAR standard [3] supports timing definition for all elements in a mixed topology network, but again, accounting for the many different timing paths is a non-trivial process. Figure 1 The Ethernet backbone serving different domains. Due to features are distributed in the vehicle, the communication need is typically tightly related to the feature
Kallerdahl, Anders, Salah, Mohammad
FPGA-Based System for Tracking Digital Information Transmitted Via Peer-to-Peer ProtocolsTBMG-776504/01/2010
Peer-to-peer (P2P) networking has changed the way users search for, send, and receive digital information over the Internet. Instead of relying on interactions with centralized servers to upload and download digital content, users now share content directly with other users. While peer-to-peer networking provides new and powerful applications for the legitimate distribution of digital information, it is also being used for many illicit purposes as well.
Telematics Communication Technologies and Vehicular Networks: Wireless Architectures and ApplicationsB-IGI-00401/01/2010
Advances in information technologies now enable the incorporation of Internet services into vehicles, allowing the transfer of digital data from the smart nodes inside the vehicle to central servers on the Internet. This book examines critical issues involved with telematics such as vehicular network infrastructure, vehicular network communication protocols, and vehicular services and applications. A defining collection of latest findings and cutting-edge solutions, this highly esteemed reference publication provides useful techniques, tools, and assessments for those involved with computer science, computer engineering, and management information systems. Topics include: Data communications inside vehicular environments Delay tolerant vehicular networks DTN technologies for vehicular networks Intelligent transportation systems Mobility models of vehicular networks Routing protocols in vehicular ad hoc networks Security attack of vehicular networks Vehicular ad hoc networks Vehicular
Huang, Chung-Ming, Chen, Yuh-Shyan
Ethernet-Enabled Power and Communication Module for Embedded ProcessorsTBMG-TB-00656112/23/2009
This device enables serial-to-Ethernet conversion and provides power to remote locations without adding cables. The power and communications module is a printed circuit board (PCB) that has the capability of providing power to an embedded processor and converting Ethernet packets into serial data to transfer to the processor. The purpose of the new design is to address the shortcomings of previous designs, including limited bandwidth and program memory, lack of control over packet processing, and lack of support for timing synchronization.
Handling Input and Output for COAMPSTBMG-250512/01/2007
Two suites of software have been developed to handle the input and output of the Coupled Ocean Atmosphere Prediction System (COAMPS), which is a regional atmospheric model developed by the Navy for simulating and predicting weather. Typically, the initial and boundary conditions for COAMPS are provided by a flatfile representation of the Navy’s global model. Additional algorithms are needed for running the COAMPS software using global models. One of the present suites satisfies this need for running COAMPS using the Global Forecast System (GFS) model of the National Oceanic and Atmospheric Administration. The first step in running COAMPS — downloading of GFS data from an Internet file-transfer-protocol (FTP) server computer of the National Centers for Environmental Prediction (NCEP) — is performed by one of the programs (SSC-00273) in this suite. The GFS data, which are in gridded binary (GRIB) format, are then changed to a COAMPS-compatible format by another program in the suite (SSC
Secure Display of Space-Exploration ImagesTBMG-189109/01/2006
Java EDR Display Interface (JEDI) is software for either local display or secure Internet distribution, to authorized clients, of image data acquired from cameras aboard spacecraft engaged in exploration of remote planets. (“EDR” signifies “experimental data record,” which, in effect, signifies image data.) Processed at NASA’s Multimission Image Processing Laboratory (MIPL), the data can be from either near-real-time processing streams or stored files. JEDI uses the Java Advanced Imaging application program interface, plus input/output packages that are parts of the Video Image Communication and Retrieval software of the MIPL, to display images. JEDI can be run as either a standalone application program or within a Web browser as a servlet with an applet front end. In either operating mode, JEDI communicates using the HTTP(s) protocol( s). In the Web-browser case, the user must provide a password to gain access. For each user and/or image data type, there is a configuration file
ELECTRONIC DISTRIBUTION OF SOFTWAREARINC666 (Current)05/17/2002
This document describes a secure internet facility for sending all types of aviation software using the world wide web (www). Software suppliers may use this document as a starting point for the construction of a secure web server utility. It provides sufficient flexibility and is compatible with numerous software distribution models. The file management structure is consistent with other ARINC standards for loadable software, and references ARINC 665 and ARINC 667 in particular.
Avionics Maintenance Committee
Communication Software for Distributed Application ProgramsTBMG-733005/01/2001
The Task Remote Asynchronous Message Exchange Layer (Tramel) software reduces the costs of distributing application programs across computer networks, including the Internet. Tramel implements robust, reliable, simple, highly portable interprocess communication, such that distributed application programs can tolerate extreme deterioration of communication links and elements of such a program can be stopped, moved to other computers (including computers with different operating systems), and restarted, all while the program is running and without alteration of any source code or configuration file. Because Tramel is based on asynchronous message passing, it can tolerate extremely low link performance without sacrificing transaction concurrency or relying on a multithreading system. Tramel manages network connections for an application program, shielding the program from such details as processor architectures, operating systems, and communication protocols. At the same time, Tramel
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