This paper presents a class of GPU-based real-time corner detection algorithms. On the basis of existing corner detection algorithms, GPU-based real-time corner detection algorithms are executed by GPU. To further imp...
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The GPRS is a useful mean to solve the communication problem in the automatic system of power distribution network system. This paper designs a GPRS-based real-time system to monitor the on-off states of the switching...
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Today embedded software is widely used. As the complexity of embedded systems grows, the number of tasks performed by embedded software is increasing. These tasks must communicate with each other to achieve synchroniz...
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Future systems will have to support multiple and concurrent dynamic compute-intensive applications, while respecting real-time and energy consumption constraints. With the increase in the design complexity of MPSoC ar...
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Liu and Layland discovered the famous utilization bound for fixed-priority scheduling on single processor systems in the 1970's. Since then, it has been a long standing open problem to find fixed-priority scheduli...
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Liu and Layland discovered the famous utilization bound for fixed-priority scheduling on single processor systems in the 1970's. Since then, it has been a long standing open problem to find fixed-priority scheduling algorithms with the same bound for multiprocessor systems. In this paper, we present a partitioning-based fixed-priority multiprocessor scheduling algorithm with Liu and Layland's utilization bound.
For the practical application of synchronous acquisition of digital signals on many kinds of circuit boards, this paper, based on NI-TCLK (Trigger clock) synchronization technology, the modular hardware as the circuit...
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ISBN:
(纸本)9781424450466
For the practical application of synchronous acquisition of digital signals on many kinds of circuit boards, this paper, based on NI-TCLK (Trigger clock) synchronization technology, the modular hardware as the circuit board based on PXI (PCI extensions for Instrumentation) bus, as well as the modular software as NI-LABVIEW, a multi-module synchronic data acquisition system is developed. Accordingly, the multi-module digital signals can be acquired simultaneously, displayed as well as stored in a NI embedded computer platform. With the use of the clock on PXI backplane, NI-TCLK technology etc., this system makes a very good solution to the problem of synchronization between multiple circuit boards. The experiment results shows that the system's real-time performance can be well satisfied, the timing relationships between signals can be clearly shown in figures and the requirements of synchronization for multi-module data acquisition can be achieved in the system.
This work presents the hardware and software architecture for the detection of fractures and edges in materials. While the detection method is based on the novel concept of Low Transient Pulse (LTP), the overall syste...
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ISBN:
(纸本)9781424463916
This work presents the hardware and software architecture for the detection of fractures and edges in materials. While the detection method is based on the novel concept of Low Transient Pulse (LTP), the overall system implementation utilizes two microelectronics technologies: Digital Signal Processor (DSP) and Field Programmable Gate Array (FPGA). The DSP carries out the analysis of the received signal at a much lower rate hence can accommodate a large number of signal channels. The FPGA runs at a higher frequency (62.5MHz) to generate the LTP signal and to calculate the envelope of the received signal (sampled at 1MHz). This research elaborates on designing a Quadrature AM (QAM) demodulator on the FPGA for the received signal from the ultrasound and for the detection of the presence of edges/fracture on the test materials. The complete system is designed and optimized in a high level Matlab\Simulink fixed point simulation. Different sub-blocks are then implemented and optimized on the FPGA where efforts are taken to maintain its accuracy with the simulated model. In this work, the technology is applied to determine the location of the Saw bone plate edges based on the received signals which are then passed through a QAM demodulator in the FPGA and a peak detector in the DSP to calculate the echo peak times.
Multiprocessor systems-on-chip (MPSoC) are required to fulfill the performance demand of modern real-life embeddedapplications. These MPSoCs are employing Network-on-Chip (NoC) for reasons of efficiency and scalabili...
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Dynamic resource allocation has the potential to provide significant increases in total revenue in enterprise systems through the reallocation of available resources as the demands on hosted applications change over t...
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As any safety-related system, medium voltage protection relays have to comply with a Safety Integrated Level (SIL), as defined by the IEC 61508 standard. The safety-function of the software part of protection relays i...
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