Advanced Real-Time Powertrain Systems Analysis

1988 ◽  
Vol 110 (3) ◽  
pp. 325-333 ◽  
Author(s):  
B. K. Powell ◽  
G. P. Lawson ◽  
G. Hogh
Keyword(s):  
Real Time ◽  
Systems Analysis ◽  
High Speed ◽  
Computer Control ◽  
Fuel Injector ◽  
Time Dynamic ◽  
Automotive Engine ◽  
Engine Control System ◽  
High Data ◽  
Data Rates

This paper describes a combined analytical and experimental hardware-in-the-loop powertrain systems analysis methodology. Central to the implementation of this methodology is a real-time dynamic system simulation computer such as the high-speed Applied Dynamics Model AD10. For automotive engine control system studies, wide bandwidth in-cylinder combustion pressure sensor signals are input to the AD10 computer. Control commands are calculated and communicated at high data rates to throttle valve, spark ignition, and fuel injector actuators. Both simulation and experimental results are presented. Using this approach, the functional improvements associated with various control philosophies can be determined.

Processing Panorama Video in Real-time

2014 ◽  
Vol 08 (02) ◽  
pp. 209-227 ◽  
Author(s):  
Håkon Kvale Stensland ◽  
Vamsidhar Reddy Gaddam ◽  
Marius Tennøe ◽  
Espen Helgedagsrud ◽  
Mikkel Næss ◽  
...  
Keyword(s):  
Real Time ◽  
Graphics Processing Units ◽  
Low Cost ◽  
Video Camera ◽  
Wide Field ◽  
High Data ◽  
Data Rates ◽  
Camera Arrays ◽  
Analysis System ◽  
Performance Results

There are many scenarios where high resolution, wide field of view video is useful. Such panorama video may be generated using camera arrays where the feeds from multiple cameras pointing at different parts of the captured area are stitched together. However, processing the different steps of a panorama video pipeline in real-time is challenging due to the high data rates and the stringent timeliness requirements. In our research, we use panorama video in a sport analysis system called Bagadus. This system is deployed at Alfheim stadium in Tromsø, and due to live usage, the video events must be generated in real-time. In this paper, we describe our real-time panorama system built using a low-cost CCD HD video camera array. We describe how we have implemented different components and evaluated alternatives. The performance results from experiments ran on commodity hardware with and without co-processors like graphics processing units (GPUs) show that the entire pipeline is able to run in real-time.

Research on Control Power and Self-Sensing Technology for GMM Self-Sensing Actuator

2010 ◽  
Vol 34-35 ◽  
pp. 1314-1318
Author(s):  
Xin Hua Wang ◽  
Shou Qiang Hu ◽  
Qian Yi Ya ◽  
Shu Wen Sun ◽  
Xiu Xia Cao
Keyword(s):  
Real Time ◽  
High Speed ◽  
Dynamic Balance ◽  
The Self ◽  
Time Dynamic ◽  
Scheme Design ◽  
Control Power ◽  
Sensing Technology ◽  
The Cost ◽  
Micro Controller Unit

Structure and principle of a new kind of diphase opposition giant magnetostrictive self-sensing actuator (SSA for short) is introduced, for which a kind of double outputs high-precision NC stable voltage power is designed. With the method of combining with the hardware design and the software setting, the controllability and reliability of the actuator are greatly improved. And the whole design becomes more reasonable, which saves the cost and improves the practicability. In addition, based on the micro controller unit (MCU) with high-speed control, the scheme design of the real-time separation circuit for dynamic balance signal can effectively identify out and pick up the self-sensing signal which changes from foreign pressure feed back. Then the SSA real-time, dynamic and accurately control is realized. The experiment results show that the voltage power can high-speed and accurately output both output voltages with high current, and that the self-sensing signal decoupling circuit can isolate the self-sensing signals without distortion

A Network Implementation of Real-Time Dynamic Simulation With Interactive Animated Graphics

1988 ◽  
Author(s):  
M. W. Dubetz ◽  
J. G. Kuhl ◽  
E. J. Haug
Keyword(s):  
Real Time ◽  
Dynamic Simulation ◽  
High Speed ◽  
Dynamic Performance ◽  
Data Communication ◽  
Computing System ◽  
Data Sets ◽  
Parallel Processor ◽  
Network Computing ◽  
Time Dynamic

Abstract This paper presents a network based implementation of real-time dynamic simulation methods. An interactive animated graphics environment is presented that permits the engineer to view high quality animated graphics rendering of dynamic performance, to interact with the simulation, and to study the effects of design variations, while the simulation is being carried out. An industry standard network computing system is employed to interface the parallel processor that carries out the dynamic simulation and a high speed graphics processor that creates and displays animated graphics. Multi-windowing and graphics processing methods that are employed to provide visualization and operator control of the simulation are presented. A vehicle dynamics application is used to illustrate the methods developed and to analyze communication bandwidth requirements for implementation with a compute server that is remote from the graphics workstation. It is shown that, while massive data sets are generated on the parallel processor during realtime dynamic simulation and extensive graphics data are generated on the workstation during rendering and display, data communication requirements between the compute server and the workstation are well within the capability of existing networks.

THREE DIMENSIONAL FLASH LADAR FOCAL PLANES AND TIME DEPENDENT IMAGING

2008 ◽  
Vol 18 (02) ◽  
pp. 401-406 ◽  
Author(s):  
ROGER STETTNER ◽  
HOWARD BAILEY ◽  
STEVEN SILVERMAN
Keyword(s):  
Three Dimensional ◽  
Data Rate ◽  
Flight Time ◽  
Time Dependent ◽  
High Data Rate ◽  
Time Dynamic ◽  
High Data ◽  
Data Rates ◽  
Topographical Mapping ◽  
Time Required

3-D flash ladar, herein defined as obtaining an entire frame of 3-D ladar data with one laser pulse, is an emerging technology with a number of advantages over conventional point scanner systems. Probably the most obvious advantage is the higher data rates possible and the potential for much higher data rates with increases in the associated 3-D focal planes array (FPA) format. High data rate means that topographical mapping, for example, can be obtained more rapidly decreasing the amount of flight time required. This paper investigates the clear but perhaps not-so-intuitive use of the high data rate: time dependent 3-D movies can be acquired at the repetition frequency of the associated laser. Data is taken using 3-D flash ladar cameras fabricated by Advanced Scientific Concepts, Inc. The paper concludes that there are a number of advantages and unique applications of the time dynamic 3-D flash ladar, including 3-D collision avoidance and object tracking.

Protocol Processing for 100 Gbit/s and Beyond – A Soft Real-Time Approach in Hardware and Software

Frequenz ◽  
2017 ◽  
Vol 71 (9-10) ◽  
pp. 427-438
Author(s):  
Steffen Büchner ◽  
Lukasz Lopacinski ◽  
Rolf Kraemer ◽  
Jörg Nolte
Keyword(s):  
Energy Consumption ◽  
Real Time ◽  
Forward Error Correction ◽  
Communication Protocol ◽  
Ultra Low Power ◽  
High Data ◽  
Wireless Communication Protocol ◽  
Data Rates ◽  
Correction Scheme ◽  
Forward Error

Abstract 100 Gbit/s wireless communication protocol processing stresses all parts of a communication system until the outermost. The efficient use of upcoming 100 Gbit/s and beyond transmission technology requires the rethinking of the way protocols are processed by the communication endpoints. This paper summarizes the achievements of the project End2End100. We will present a comprehensive soft real-time stream processing approach that allows the protocol designer to develop, analyze, and plan scalable protocols for ultra high data rates of 100 Gbit/s and beyond. Furthermore, we will present an ultra-low power, adaptable, and massively parallelized FEC (Forward Error Correction) scheme that detects and corrects bit errors at line rate with an energy consumption between 1 pJ/bit and 13 pJ/bit. The evaluation results discussed in this publication show that our comprehensive approach allows end-to-end communication with a very low protocol processing overhead.

scholarly journals A High-Speed Demodulation Technology of Fiber Optic Extrinsic Fabry-Perot Interferometric Sensor Based on Coarse Spectrum

Sensors ◽  
2021 ◽  
Vol 21 (19) ◽  
pp. 6609
Author(s):  
Peng Zhang ◽  
Ying Wang ◽  
Yuru Chen ◽  
Xiaohua Lei ◽  
Yi Qi ◽  
...  
Keyword(s):  
Real Time ◽  
High Speed ◽  
Cavity Length ◽  
Fiber Optic ◽  
Likelihood Estimation ◽  
Time Dynamic ◽  
Wavelength Division ◽  
Broadband Spectrum ◽  
Fabry Perot ◽  
Interferometric Sensor

A fast real-time demodulation method based on the coarsely sampled spectrum is proposed for transient signals of fiber optic extrinsic Fabry-Perot interferometers (EFPI) sensors. The feasibility of phase demodulation using a coarse spectrum is theoretically analyzed. Based on the coarse spectrum, fast Fourier transform (FFT) algorithm is used to roughly estimate the cavity length. According to the rough estimation, the maximum likelihood estimation (MLE) algorithm is applied to calculate the cavity length accurately. The dense wavelength division multiplexer (DWDM) is used to split the broadband spectrum into the coarse spectrum, and the high-speed synchronous ADC collects the spectrum. The experimental results show that the system can achieve a real-time dynamic demodulation speed of 50 kHz, a static measurement root mean square error (RMSE) of 0.184 nm, and a maximum absolute and relative error distribution of 15 nm and 0.005% of the measurement cavity length compared with optical spectrum analyzers (OSA).

High Speed Serial Interfaces in 2.5D Integrated Systems

2016 ◽  
Vol 2016 (1) ◽  
pp. 000155-000159 ◽  
Author(s):  
Muhammad Waqas Chaudhary ◽  
Andy Heinig
Keyword(s):  
High Speed ◽  
Serial Communication ◽  
Integrated Systems ◽  
Electromagnetic Simulation ◽  
Measurement Equipment ◽  
Data Sampling ◽  
High Data ◽  
Data Rates ◽  
Simulation Based ◽  
High Bandwidth

Abstract High speed communication has been a topic of great interest in the last decade due to excessively high data rates required between chips especially pushed by the measurement equipment industry to support extremely high bandwidth data sampling. Serial communication is chosen to support these data rates which are pushing further and further into higher data rate regimes. It is important to understand how the 2.5D integration of chips on the interposer can support serial communication and what the designer can do to leverage the special features of interposer channel to achieve lower power and higher speed. This paper will present the interposer complete channel full 3D Electromagnetic simulation based model extraction. It also presents the simulation of channel with real serial communication transmitter and receiver circuit models to describe the proposed interposer performance for multi Gb/s data rates. Also a comparison is shown for different settings of transmitter and receiver circuits under the interposer channel.

High Speed Passive Optical Network Based Elastic Optical Communication System

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Nikhlesh Kumar Mishra ◽  
Kamal Kishore Upadhyay ◽  
N. K. Shukla
Keyword(s):  
Optical Networks ◽  
Communication System ◽  
High Speed ◽  
Optical Network ◽  
Wave Length ◽  
Single Mode ◽  
Passive Optical Network ◽  
High Data ◽  
Data Rates ◽  
Communication Needs

AbstractFor addressing needs of modern day communication needs, new type of networks are required to be evolved to cater the demand of high data rates. Use of survivable elastic-optical-network (EON) with existing passive-optical-networks (PON) may provide the solution for this. The present work focus on employing EON–PON based wave-length-division multiplexing enabled communication system comprises of 2×5 Gbps for downlink and 2×1 Gbps for uplink over a single-mode-fibre of length 100 km. The results are the evaluated via bit-error-rate analyser, q factor and eye diagrams.

Multiprocessor system for the real-time digital processing of video-image series / Ein Multiprozessorsystem für die digitale Verarbeitung von Fernsehbildserien in Echtzeit

1979 ◽  
Vol 21 (4) ◽  
Author(s):  
Nicolae G. C. ◽  
Κ. H. Höhne
Keyword(s):  
Real Time ◽  
High Speed ◽  
Digital Processing ◽  
Video Image ◽  
Multiprocessor System ◽  
The Real ◽  
Image Series ◽  
Data Rates ◽  
Structured Design Methods ◽  
Display Processor

In the course of a project for the analysis of X-ray picture series a new system for the digital processing of video-image series has been developed. It allows the real time digitization (up to 512 pixels/line, 8 bits/pixel), and high speed processing of video-picture series and a presentation of results in an easily interpretable way by a colour TV-display processor. As a characteristic of the system the extreme requirements concerning the digitization and processing speed (with data rates up to 80 Mbaud) are met by a realization in the form of a multiprocessor structure. The microprogrammed special processors communicate via a high speed asynchronous bus with a throughput of 15 Mwords/ s. Their functions are controlled by the commands of a host computer (e.g. PDP U/45). In order to achieve the above performance, structured design methods such as Petri-nets have been applied, which give rise to a more transparent design, better documentation and shorter implementation times. This paper describes the design, the structure, the programming and the application of the system.

Sign in / Sign up

Export Citation Format

Share Document