The proceedings contain 29 papers. The special focus in this conference is on Distributed, Parallel and Biologically Inspired systems. The topics include: Mastering conflicting trends in embedded systems design;a lang...
ISBN:
(纸本)9783642152337
The proceedings contain 29 papers. The special focus in this conference is on Distributed, Parallel and Biologically Inspired systems. The topics include: Mastering conflicting trends in embedded systems design;a language for heterogeneous computations;scenario-based modeling in industrial information systems;an entirely model-based framework for hardware design and simulation;extending the standard execution model of UML for real-time systems;task migration for fault-tolerant flexray networks;flexible and dynamic replication control for interdependent distributed real-time embedded systems;generation of executable testbenches from natural language requirement specifications for embedded real-time systems;model checking of concurrent algorithms;integrate online model checking into distributed reconfigurable system on chip with adaptable OS services;efficient mutation-analysis coverage for constrained random verification;generating VHDL source code from UML models of embedded systems;a rapid, architectural simulation and synthesis framework for embedded processors;a mixed level simulation environment for stepwise RTOS software refinement;dependency-driven distribution of synchronous programs;distributed resource-aware scheduling for multi-core architectures with system C;robust partitioned scheduling for real-time multiprocessor systems;an infrastructure for flexible runtime reconfigurable multi-microcontroller systems;feature selection for classification using an ant system approach;a collaborative decision support model for marine safety and security operations and collaborating and learning predators on a pursuit scenario.
In this paper, we discuss the performability evaluation model for tire computer-based system, introducing the concept of hardware/softwarecodesign. We assume that the computer system consists of one hardware and one ...
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ISBN:
(纸本)9780976348658
In this paper, we discuss the performability evaluation model for tire computer-based system, introducing the concept of hardware/softwarecodesign. We assume that the computer system consists of one hardware and one software subsystem and consider both of hardware and software failure/restoration characteristics. In particular, the reliability growth process, the upward tendency of difficulty in debugging, and the imperfect debugging environment are described for the software subsystem. Assuming that the system can process the multiple tasks simultaneously and that, the arrival process of tire tasks follows a nonhomogeneous Poisson process, we analyze the distribution of the number of tasks whose processes can be completed within the prespecified processing time limit with the infinite server queueing theory. We derive several performability measures considering the real-time property, which are given as the functions of time and the number of debugging activities. Finally we illustrate several numerical examples of the measures to investigate the impact of hardware/software failure/restoration characteristics on the system performability evaluation.
A low power biomedical digital signal processor ASIC based on hardware and softwarecodesign methodology was presented in this paper. The codesign methodology was used to achieve higher system performance and design f...
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ISBN:
(纸本)9781424432950
A low power biomedical digital signal processor ASIC based on hardware and softwarecodesign methodology was presented in this paper. The codesign methodology was used to achieve higher system performance and design flexibility. The hardware implementation included a low power 32bit RISC CPU ARM7TDMI, a low power AHB-compatible bus, and a scalable digital co-processor that was optimized for low power Fast Fourier Transform (FFT) calculations. The co-processor could be scaled for 8-point, 16-point and 32-point FFTs, taking approximate 50, 100 and 150 clock circles, respectively. The complete design was intensively simulated using ARM DSM model and was emulated by ARM Versatile platform, before conducted to silicon. The multi-million-gate ASIC was fabricated using SMIC 0.18 mu m mixed-signal CMOS 1P6M technology. The die area measures 5,000 mu m x 2,350 mu m. The power consumption was approximately 3.6 mW at 1.8V power supply and 1MHz clock rate. The power consumption for FFT calculations was less than 1.5 % comparing with the conventional embedded software-based solution.
In this paper, we present a lane detection system (LDS) based on software and hardwarecodesign. In combining both hardware and software designs, it can achieve a real time lane detection within a processing time of l...
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ISBN:
(纸本)9781424427123
In this paper, we present a lane detection system (LDS) based on software and hardwarecodesign. In combining both hardware and software designs, it can achieve a real time lane detection within a processing time of less than 50ms. The hardware implemented by FPGA chip captures the lane image from CCD camera within a time less 10ms, which is faster than by soft-ware captures. In software design, the global edge detection is able to transfer the gray level image to binary pattern and show the edge of the object. Then, using this binary pattern rind out the traffic lane location with following algorithm like the peak-finding and grouping, edge connecting, lane segment combination, lane boundaries selection. The lane departure warning algorithm detects the vehicle whether in traffic lane and judges whether sends out the warning. Experimental results demonstrate a quite good accuracy in lane detection whether at day or night condition.
Low-power embedded system design has become extremely important in the most recent years. To fulfill system-level design requirements and time-to-market constraints, a power-driven methodology is essential during embe...
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ISBN:
(纸本)9780769536422
Low-power embedded system design has become extremely important in the most recent years. To fulfill system-level design requirements and time-to-market constraints, a power-driven methodology is essential during embedded system design. The aim of this paper is to introduce accurate and efficient power metrics included in a hardware/software (HW/SW) co-design environment to show the system-level partitioning and design. In order to verify the design effectiveness of hardware/software co-design synthesis, we consider the digital power dissipation methodology and its power reduction techniques. To maximize the performance of system, we developed hierarchical design technique and co-design synthesis for power efficient HW/SW co-design process. In the end, we provided simulation results for single circuit with new design vs. circuit integration with hierarchical power efficiency system (HPES), multiple circuits with new design vs. circuit integration with HPES, new design and no load vs. circuit integration with HPES, new design with load vs. circuit integration with HPES.
In this paper, we propose a novel hardware-softwarecodesign technique of network protocol stacks on a SoC (system on Chip) platform for providing the QoS (Quality of Service) functionality. We address that the codesi...
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We present a codesign method that synthesizes heterogeneous multiple processing element embedded systems with real-time constraints. hardware/software partitioning is performed using Genetic algorithm. The proposed co...
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Decomposition and scheduling are two major challenges in hardware and software developments of multiprocessor systems. The introduced EvoMT (Evolvable Multi-Processor) is a novel NoC-based homogeneous MPSoC system tha...
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ISBN:
(纸本)9780769535210
Decomposition and scheduling are two major challenges in hardware and software developments of multiprocessor systems. The introduced EvoMT (Evolvable Multi-Processor) is a novel NoC-based homogeneous MPSoC system that performs decomposition and scheduling using evolutionary algorithms at run-time. A hardware genetic core was used in first version of this platform to perform these two tasks. This core tries to find an efficient solution for decomposition and scheduling of the target application among available computational resources. This paper presents the new version of this system in which a hardware Particle Swarm Optimization (PSO) core is exploited to perform evolutionary decomposition and scheduling. The principle of operation and architecture of the EvoMP platform and the PSO core is briefly explained in this paper. The simulation and synthesis results of this PSO-based EvoMT is also presented and compared with prior genetic-base approach.
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