There is an increasing demand for fully autonomous driving with the spread of advanced driver assistance systems. However, a higher level of automation requires an enhanced environment perception system. The automotiv...
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With the development of computer network technology, remote working condition monitoring system is gradually applied to the fields of traffic and road condition, construction site, and oil well site monitoring. The tr...
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ISBN:
(纸本)9781665422482
With the development of computer network technology, remote working condition monitoring system is gradually applied to the fields of traffic and road condition, construction site, and oil well site monitoring. The traditional monitoring system can achieve its basic functions to a certain extent, but on the one hand, it does not solve the problem of simultaneous transmission of working condition data and real-time images;on the other hand, the networking is not flexible enough. Based on the embedded development board and wireless bridge communication technology, this paper constructs an embedded remote working condition monitoring system. This system combines the V4L2 (Video for linux2) programming framework provided by Linux, and transplants the collection and sending program of working condition data and image data in the development board. First, the development board collects and packs the data;then, the data is transmitted to the upper monitoring center through the wireless bridge to realize real-time monitoring of the scene and real-time display and alarm of working condition data. This paper designs and implements an embedded remote working condition monitoring system, and builds an experimental platform to verify its feasibility.
Path planning is a critical task in autonomous driving systems that is most susceptible to real-time constraints but often demands computationally intensive mathematical solvers, two contradictory goals. This conflict...
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Rice production in Malaysia is facing significant challenges due to plant diseases and environmental hazards, leading to a decline in the rice self-sufficiency ratio. To address these issues, this study explores the d...
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WDT in safety-critical embedded systems, such as the one used for airborne application requires that it be highly dependable and take care of operation time-related failures automatically and transparently to ensure h...
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The proceedings contain 119 papers. The topics discussed include: unmasking devastation: near real-time earthquake-induced building damage detection;investigating the viability of detecting rooftop solar photovoltaics...
ISBN:
(纸本)9798350325591
The proceedings contain 119 papers. The topics discussed include: unmasking devastation: near real-time earthquake-induced building damage detection;investigating the viability of detecting rooftop solar photovoltaics via convolutional neural networks using remote sensing images;mapping Maharashtra’s slums using Google Earth engine;microwave NDT for estimating organic textile dye residue on top soil;active learning using multifeature kernel sparse representation classifier for hyperspectral image classification;investigating large vision model training challenges on satellite datasets;TLS, GNSS and TS survey planning for precision agricultural applications;and remote sensing image de-striping using deep convolutional networks.
In recent years, vehicle detection has become vital for applications ranging from autonomous driving to traffic control, surveillance, and monitoring. The demand for efficient real-time detection systems has surged, p...
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Image processing algorithms with intrinsic robustness to errors can be approximated for significant resource and energy savings while still meeting the end-user requirements. FPGA-based implementations can increase th...
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ISBN:
(数字)9781665466059
ISBN:
(纸本)9781665466059
Image processing algorithms with intrinsic robustness to errors can be approximated for significant resource and energy savings while still meeting the end-user requirements. FPGA-based implementations can increase their suitability for real-time high-speed multimedia applications by leveraging Approximate Computing, an independent field that explores methods to reduce computation costs by allowing minor degradation in intermediate computations. With high volume of pixel level computations, corner detection algorithms such as the Harris Corner Detector (HCD), offer wide range of targets for such strategies. In this paper, we propose an hardware implementation of HCD that relies on approximating the intermediate multiplication operations using Dynamic Range Unbiased Multiplier (DRUM). With run-time configurable bit-width control of DRUM instances, the visual quality of outputs is shown to depend on the varying accuracy of the corner response. We explore how the errors due to approximate operations propagate to the corner response and attempt to find a threshold that adapts to this inaccuracy across images. The experimental results for implementations on Virtex-7 and Zynq-7000 FPGA devices show that our approximate architecture can match the performance of other HCD implementations while hardly utilizing any on-board memory and signal processing resources. Synthesis results show that the proposed implementation achieves over 60% increase in maximum frequency compared to the base implementation. Finally, the quality metric analysis facilitates the selection of approximate configuration suited to the needs of an application.
With the proliferation of embedded computing, many machine learning (ML) applications have found their way into embedded devices. The SVM classifier is deemed suitable for real-world ML applications, which often compr...
With the proliferation of embedded computing, many machine learning (ML) applications have found their way into embedded devices. The SVM classifier is deemed suitable for real-world ML applications, which often comprise large-scale multi-dimensional data. In this paper, we introduce an FPGA-based systolic array architecture to support and accelerate SVM classifier on resource-constrained embedded devices. We also introduce a unique system-level architecture to further enhance speedup and to facilitate real-time processing. Our systolic array achieves a maximum speedup of 107x compared to its software counterparts, and a maximum classification accuracy of 98.5%.
The Preemptable Waiting Locking Protocol (PWLP) is a mainstream real-time resource sharing protocol that provides predictable mutually exclusive access to shared resources. However, the analysis of PWLP can only suppo...
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ISBN:
(数字)9798350388633
ISBN:
(纸本)9798350388640
The Preemptable Waiting Locking Protocol (PWLP) is a mainstream real-time resource sharing protocol that provides predictable mutually exclusive access to shared resources. However, the analysis of PWLP can only support traditional real-time systems, preventing its application in mixed-criticality systems (MCS), which are commonly found in realistic real-timeapplications. In addition, existing analyses are either overly-pessimistic or computationally extensive with optimizations required. To address the above issues, this paper presents a new response time analysis of PWLP on multiprocessor MCS, enhancing both the effectiveness and applicability of PWLP on MCS. The proposed analysis provides fine-grained blocking bounds of PWLP and explicitly considers the varied task execution time under MCS, achieving accurate timing bounds without significantly increasing computation cost. Experimental results show that the proposed analysis outperforms existing analysis by improving the resulting system schedulability with much less computation cost.
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