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2008 International Symposium on Industrial Embedded Systems最新文献

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An embedded decryption/decompression engine using Handel-C 使用Handel-C的嵌入式解密/解压缩引擎
Pub Date : 2008-06-11 DOI: 10.1109/SIES.2008.4577680
Farnaz Gharibian, K. Kent
Speed and security of data streams are two key factors in different areas such as data communication and multimedia. Compression algorithms are applied to data streams to increase their communication speed while encryption algorithms are used for assuring the security of the data transfer. AES and LZ77 are two well known algorithms for data encryption and compression respectively. In this paper we propose a model to implement both algorithms, decryption and decompression, in a field programmable gate array chip. Such a design must address the issues of optimal resource usage of the FPGA, and balance between the throughput of both algorithms. Handel-C is considered as the specification language for this design.
数据流的速度和安全性是数据通信和多媒体等不同领域的两个关键因素。对数据流采用压缩算法来提高其通信速度,对数据流采用加密算法来保证数据传输的安全性。AES和LZ77分别是两种众所周知的数据加密和压缩算法。在本文中,我们提出了一个模型来实现这两个算法,解密和解压缩,在现场可编程门阵列芯片。这样的设计必须解决FPGA的最佳资源使用问题,并在两种算法的吞吐量之间取得平衡。Handel-C被认为是本设计的规范语言。
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引用次数: 0
Flexible in-vehicle stream processing with distributed automotive control units for engineering and diagnosis 灵活的车载流处理与分布式汽车控制单元的工程和诊断
Pub Date : 2008-06-11 DOI: 10.1109/SIES.2008.4577683
Hendrik Schweppe, A. Zimmermann, D. Grill
This paper introduces a method for selectively pre-processing and recording sensor data for engineering testing purposes in vehicles. In order to condense data, methodologies from the domain of sensor networks and stream processing are applied, which results in a reduction of the quantity of data, while maintaining information quality. A situation-dependent modification of recording parameters allows for a detailed profiling of vehicle-related errors. We developed a data-flow oriented model, in which data streams are connected by processing nodes. These nodes filter and aggregate the data and can be connected in nearly any order, which permits a successive composition of the aggregation and recording strategy. The integration with an event-condition-action model provides adaptability of the processing and recording, depending on the state of the vehicle. In a proof-of-concept system, which we implemented on top of the automotive diagnostic protocols KWP and UDS, the feasibility of the approach was shown. The target platform was an embedded on-board computer that is connected to the OBD-II interface of the vehicle. As the scope of recording can be adjusted flexibly, the recording system can not only be used for diagnostic purposes, but also serves objectives in development, quality assurance, and even marketing.
本文介绍了一种用于车辆工程测试的传感器数据选择性预处理和记录的方法。为了压缩数据,应用了传感器网络和流处理领域的方法,在保持信息质量的同时减少了数据量。根据情况对记录参数进行修改,可以详细分析与车辆相关的错误。我们开发了一个面向数据流的模型,其中数据流通过处理节点连接。这些节点过滤和聚合数据,并且可以以几乎任何顺序连接,这允许聚合和记录策略的连续组合。与事件-条件-动作模型的集成提供了根据车辆状态进行处理和记录的适应性。在概念验证系统中,我们在汽车诊断协议KWP和UDS之上实现了该方法的可行性。目标平台是连接到车辆OBD-II接口的嵌入式车载计算机。由于记录的范围可以灵活调整,因此记录系统不仅可以用于诊断目的,还可以服务于开发、质量保证甚至营销目的。
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引用次数: 9
期刊
2008 International Symposium on Industrial Embedded Systems
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