In a preemptive priority based RTOS, priority inversion problem is among the major sources of deadline violations. Priority inheritance protocol is one of the approaches to reduce priority inversion. Unfortunately, RTOS like uC/OS can’t support priority inheritance protocol since it does not allow kernel to have multiple tasks at the same priority. Although it has different ways to avoid priority inversion such as priority ceiling protocol, developers still have some difficulties in programming real time applications with it. In this paper, we redesign the uC/OS kernel to provide the ability to support round robin scheduling and implement priority inheritance semaphore on the modified kernel. As result, we port new kernel with priority inheritance semaphore to evaluation board, and evaluate the execution time of each of the kernel service as well as verify the operations of our implementation.
標簽： priority preemptive inversion problem
上傳時間： 2015-12-14
上傳用戶：氣溫達上千萬的
Testbenches have become an integral part of the design process, enabling you to verify that your HDL model is sufficiently tested before implementing your design and helping you automate the design verification process. It is essential, therefore, that you have confidence your testbench is thoroughly exercising your design. Collecting code coverage statistics during simulation helps to ensure the quality and thoroughness of your tests.
標簽： Testbenches enabling integral process
上傳時間： 2014-01-25
上傳用戶：ynzfm
Rao-Blackwellised Particle Filters (RBPFs) are a class of Particle Filters (PFs) that exploit conditional dependencies between parts of the state to estimate. By doing so, RBPFs can improve the estimation quality while also reducing the overall computational load in comparison to original PFs. However, the computational complexity is still too high for many real-time applications. In this paper, we propose a modified RBPF that requires a single Kalman Filter (KF) iteration per input sample. Comparative experiments show that while good convergence can still be obtained, computational efficiency is always drastically increased, making this algorithm an option to consider for real-time implementations.
標簽： Particle Filters Rao-Blackwellised exploit
上傳時間： 2016-01-02
上傳用戶：refent
Surface profile measurement by noncontact optical methods has been extensively studied because of its importance in automated manufacturing, component quality control, medicine, and robotics. In most of these methods a known periodic pattern,
標簽： measurement extensively noncontact Surface
上傳時間： 2016-01-02
上傳用戶：561596
The purpose of this example is to demonstrate that the functioning of External interrupts (INT0, INT1, INT4, INT5 and INT6) and how toset them up. This directory contains the frameworks fw.c, the test program extr_intr.c and the external interrupt service routines isr.c. This was compiled using micro vision2.
標簽： demonstrate functioning interrupts External
上傳時間： 2014-02-04
上傳用戶：Altman
TI warrants performance of its products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements.
標簽： specifications performance applicable the
上傳時間： 2016-01-16
上傳用戶：weixiao99
This section describes the eSOAP toolkit demo package. It consists of the eSOAP runtime for MS Windows, the demo version of the esoapcg compiler and some source code examples to help developers learning how to use the toolkit ( run-time ) and how to specify service interfaces using the esoap code generator (esaopcg).
標簽： eSOAP describes the consists
上傳時間： 2013-12-26
上傳用戶：aig85
This program compress and recostruct using wavelets. We can select level of decomposition(here maximum 4 levels are given) of images using selected wavelet. For eg:-wavelets can be haar, db1, db2,dmey............... Decomposition can be viewed in figure. (Please note that select 256X256 image for better result.) Then compression can performed, PERFL2 give compression score. Then reconstruction can be performed. Each decompsition we can choose different threshold values. For each threshold value we can calculate mse,psnr,pq(picture quality), bit ratio etc. To get pq install pqs function .
標簽： decomposition recostruct compress wavelets
上傳時間： 2016-01-22
上傳用戶：liuchee
This document represents the first stage in a process of taking the National Strategy for Police Information Systems (NSPIS) forward. It defines the mechanisms to ensure that we (and our partners) have access to the right information, in the right form, in the right time at an appropriate cost. The Strategy will ensure the Police Service has a collective understanding of the value of information and that we are able to exploit National Information Assets in support of local policing.
標簽： represents the National Strategy
上傳時間： 2016-03-08
上傳用戶：wangdean1101
This paper provides incumbent wireless Internet service providers (WISPs), new WISPs and demanding new markets (such as government and education) with a technical analysis of alternatives for implementing last-mile wireless broadband services.
標簽： WISPs incumbent demanding providers
上傳時間： 2014-01-05
上傳用戶：二驅蚊器
