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833 Uppsatser om Embedded software - Sida 1 av 56

Minnesallokering och debugverktyg

The aim of this report is to give a description of a diploma work of 20 points that has been performed during the spring 2006 at Ericsson AB in Borås. The report accounts for the problem and procedure during the diploma work. The software used for this project was embedded in a radio link. The RAM in this radio link was divided into several regions where two were used for memory allocation. The current allocation of memory in the radio link was not optimized with regards to performance, security and memory use and the configuration used made it difficult to determine the memory use of the system and the actual memory need.

Bryggarsalen : Underlag för kommande marknadsföringsinsatser

The purpose of this study is to identify the points-of-difference that should form the basis for Bryggarsalen?s future marketing efforts. Bryggarsalen is a newly established conference business in Stockholm. To be able to identify these points-of-difference, Bryggarsalen?s marketing problems have been studied from the resource-based view, claiming that the source of sustained competitive advantage derive from a firm?s unique bundle of resources.

Utveckling av reglersystem till quadrokopter

The purpose of this project was to further develop and complete a quadcopter that had been built in an earlier course at KTH, so that it could be used for demonstration and education at the school. The quadcopter was at the beginning of the project completed when it came to hardware, and there was some software functionality implemented but no system for automatic stabilization. The main goal of the project was to implement such a system, and to combine it with the previous functionality to make the quadcopter operable and able to fly. To create a functioning and stable ground multiple basic software features has been implemented, and on top of that additional software to improve the safety, stability and functionality. The most important part is the control system that is responsible for converting sensor and control signals to suitable motor values.

Utveckling av inbyggda system med grafisk programmering

The increase of complexity in embedded programming is forcing the development of higher level programminglanguages. These languages not only consist of traditional text based programming but also with graphical programminglanguages such as the programming language G from LabVIEW which is developed by National Instruments and havebeen around since the mid eighties. However since 2004 this language has also been able to program embeddedhardware, using the modules LabVIEW SDK and LabVIEW for ARM. This thesis shows how LabVIEW for ARM converts itsgraphical language G to C and then how C is flashed into the microprocessor. The thesis also takes up the pros and consof using G for embedded development.

Adaptive QoS Management in Dynamically Reconfigurable Real-Time Databases

During the last years the need for real-time database services has increased due to the growing number of data-intensive applications needing to enforce real-time constraints. The COMponent-based Embedded real-Time database (COMET) is a real-time database developed to meet these demands. COMET is developed using the AspeCtual COmponent-based Real-time system Development (ACCORD) design method, and consists of a number of components and aspects, which can be composed into a number of different configurations depending on system demands, e.g., Quality of Service (QoS) management can be used in unpredictable environments. In embedded systems with requirementson high up-time it may not be possible to temporarily shut down the system for reconfiguration. Instead it is desirable to enable dynamic reconfiguration of the system, exchanging components during run-time.

Mjukvarukvalitet i öppen programvara - en explorativ och kvalitativ studie av uppfattningar om mjukvarukvalitet

Open source software has recently been discussed, not least in media as a revolution in IT. A number of advantages have been listed in changing proprietary software into open source software. Examples of such pros are no expenses for license fees and improved efficiency. In spite of this, few users have made this change. One of the reasons is a distrust of the quality in open source software.

Mjukvarukvalitet i öppen programvara - en explorativ och kvalitativ studie av uppfattningar om mjukvarukvalitet

Open source software has recently been discussed, not least in media as a revolution in IT. A number of advantages have been listed in changing proprietary software into open source software. Examples of such pros are no expenses for license fees and improved efficiency. In spite of this, few users have made this change. One of the reasons is a distrust of the quality in open source software.

Piratkopiering: en ekonomisk-teoretisk granskning av marknaden för dataspel

This essay analyzes the market for entertainment software by identifying and explain the products typical properties, in addition i clarifies the behavior of consumers and producers. One of the most important property related to software is the ease with which it can be reproduced. When such reproduction is done illicit it´s called piracy. The software industry often claims that piracy leads to big losses for the companies as well as in welfare, the essay clarifies that this doesn´t has to be the case. On the contrary the possibility to cheap production and distribution may lead to an increased welfare.

Datoriserat lärande. Ett pedagogiskt perspektiv på datorprogram för barn.

Aspects of computerized learning in terms of educational situations in kindergarten andschools where the teachers use software either made for children or for adults, is thesubject of this paper.The market for software produced in Sweden and intended for educatilonal situationswith small children is discussed and analysed by qualitative method. The software, theusers, the producers and other related groups are looked upon from an educationalperspective and a mode1 of this process is presented in the paper.The software is categorized and discussed according to area of use and underlying educationalperspectives. The educational situations in which the users are a part are discussedfrom an educational perspective and examples from use of software in kindergartenand schools are given. The images of their target group which the producers haveare categorized according to phenomenographical method. A proposal of a classificationsystem for software used in educational situations is made..

Utveckling av programvara till ett inbyggt styrsystem

This thesis considers the development of the software for an, newly developed, embedded real-time control system, based on a Periferal Interface Controller (PIC). The control system is developed to be used for several different applications. In this thesis work, software for two different applications are developed. The first task is a time controlled system, while the other task is implementation of aPI-/PID-controller. A user interface is also developed and implemented.The time controlled system is an automatic horse feeder, which is used for feeding horses at certain predefined points in time.

SDN : Software defined networks

This report is a specialization in Software defined networking. SDN really comes to revolutionize the industry and it?s under constant development. But is the technology ready to be launched into operation yet? The report would initially involve a number of problems that today's network technology is facing.

Integration av simuleringsmodeller för bränslesystemet i JAS 39 Gripen

In this final thesis two simulation models have been integrated. The simulation models are models of JAS 39 Gripen?s fuel system, software and hardware. The time consuming and costly work to develop software has made the department of fuel system to build two models in Xmath/Systembuild. The software model also simplifies the comprehension of how the software in the control computer of the fuel system works.

Frekvens och spanningsskalning i en inbyggd mikroprocessor; for att mojliggora implementationen av schemalaggning med stod for dynamisk frekvens- och spanningsreglering for energihantering.

Minimizing power consumption is a critical part of many embedded design projects. Thechallenge is to limit the power consumption of the system and at the same time providesatisfactory service to the user. With regards to microprocessors, the main way of limiting powerconsumption during program execution is to adjust the frequency and the voltage at which theprocessor operates.To enable the implementation of real-time scheduling with support for dynamic voltage andfrequency scaling, an exhaustive study of the Freescale i.MX31 embedded microprocessor isperformed. Specifically, the power consumption relationship to all relevant frequency andvoltage settings is investigated. In addition, to enable frequency and voltage scaling in a real-timeenvironment, a complete timing analysis of proposed voltage and frequency scaling methods isperformed and their suitability for use in real-time systems is evaluated.To integrate voltage and frequency scaling capability into OSE RTOS, a software module hasbeen developed for this operating system.


Inbäddade kartor för geografiska presentationer på webbsidor

This is a survey of different techniques that may be used for embedding geographicdata into web pages. Different models of GIS communication are examined and a testsubject in the form of an application is implemented and evaluated.The test application (?StudentKarta? eng. ?Student Map?) lets students submit theirresidential data and shows their position as pins on an embedded Map.An expire date is used to let the pins fade away and disappear.The application uses the popular Google map engines to display the geographicalpresentations.

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