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22 Uppsatser om Modem - Sida 1 av 2
Konfigureringsverktyg för modem
Westermo Teleindustri tillverkar och säljer telefonModem för industritillämpningar och ska erbjuda ett konfigureringsverktyg till dessa. Verktyget ska konfigurera Westermos Modem med Hayes AT-kommandon genom ett PC program som ska vara enkelt att använda så att deras supportavdelning blir avlastad från en del konfigureringssupport. Min uppgift i detta examensarbete var att ta fram en kravspecifikation och implementera en lösning utifrån denna. Kravspecifikation togs fram genom att skicka ut förfrågningar om önskemål till dotterbolag, distributörer och andra som har nära kontakt med slutkunderna. I kravspecifikationen beskrivs vilken funktionalitet programvaran skall innehålla.
APS - Akustiskt positioneringssystem
The objective of this work was to evaluate and implement a number of energy saving functions for a specific embedded system. The functions were then grouped into a number of energy levels with known properties in terms of functionality, energy consumption, and transition time between the levels.The embedded system consisted of an AT91 ARM9 processor, GSM/GPRS Modem, display, Ethernet and other peripheral units. Some energy saving methods that were considered were suspend to RAM, suspend to disk, frequency scaling, and methods for saving energy in the Modem, Ethernet, USB and display backlight. The functions were grouped into levels and an interface was specified for controlling the energy level.It proved possible to get known properties within the defined energy levels, even though the paritioning of functions into these levels proved to be sub-optimal in a typical application usage scenario because it was designed for mainly energy consumption, not usage.The final result is a number of energy saving functions grouped into levels, which are controllable via an application interface. Each of the levels have a known energy consumption in both loaded and un-loaded mode..
Utveckling av försäljnings- och leveransmodell
The objective of this work was to evaluate and implement a number of energy saving functions for a specific embedded system. The functions were then grouped into a number of energy levels with known properties in terms of functionality, energy consumption, and transition time between the levels.The embedded system consisted of an AT91 ARM9 processor, GSM/GPRS Modem, display, Ethernet and other peripheral units. Some energy saving methods that were considered were suspend to RAM, suspend to disk, frequency scaling, and methods for saving energy in the Modem, Ethernet, USB and display backlight. The functions were grouped into levels and an interface was specified for controlling the energy level.It proved possible to get known properties within the defined energy levels, even though the paritioning of functions into these levels proved to be sub-optimal in a typical application usage scenario because it was designed for mainly energy consumption, not usage.The final result is a number of energy saving functions grouped into levels, which are controllable via an application interface. Each of the levels have a known energy consumption in both loaded and un-loaded mode..
Strömsparande arkitektur för inbyggnadslinux
The objective of this work was to evaluate and implement a number of energy saving functions for a specific embedded system. The functions were then grouped into a number of energy levels with known properties in terms of functionality, energy consumption, and transition time between the levels.The embedded system consisted of an AT91 ARM9 processor, GSM/GPRS Modem, display, Ethernet and other peripheral units. Some energy saving methods that were considered were suspend to RAM, suspend to disk, frequency scaling, and methods for saving energy in the Modem, Ethernet, USB and display backlight. The functions were grouped into levels and an interface was specified for controlling the energy level.It proved possible to get known properties within the defined energy levels, even though the paritioning of functions into these levels proved to be sub-optimal in a typical application usage scenario because it was designed for mainly energy consumption, not usage.The final result is a number of energy saving functions grouped into levels, which are controllable via an application interface. Each of the levels have a known energy consumption in both loaded and un-loaded mode..
PPP - Ethernet gateway RS232 - RJ45 network adapter for an Echelon ?Data Concentrator?
För närvarande läses elmätare av en gång per år, detta leder till att kunders elräkning baseras på ett schablonbaserat belopp. Enligt riksdagens proposition 2002/03:85 skall dock alla elkunder, senast fr.o.m. 1 juli 2009, faktureras efter faktisk elförbrukning varje månad. Detta har lett till en stor marknad för fjärravlästa elmätare som nu är ett måste för att kunna utföra den tätare avläsning som krävs. E.ON ES Sverige AB som är beställare av detta examensarbetet har specialiserat sig på att installera, underhålla och läsa av fjärravlästa elmätare åt nätägare.
Kommunikation mellan två medium
The aim of this project is to find a concept solution for a wireless transmitting system, installed to transmit data from a hydrophone of the ocean floor down by a wave power generator to the office on shore. The project is a literature review in which previous observations and tests are analyzed and put together to find a solution. The result was a comprehensive solution that includes an acoustic Modem to transfer captured information from the bottom to the surface, wirelessly through the water. The information is then sent fron the surface on radio waves through the GSM network to the office on land. Between under and over water there are components to convert information between acoustic waves and radio waves, but also various types of modulation, such as amplitude and frequency modulation is required..
För mycket information? : En analys av begreppet Information Overload mot bakgrund av det framväxande informationssamhället
This paper deals with the concept "Information Overload" (IO). It describes the intellectualcontent of the idea as well as its supposed domains of activity. Furthermore it problemizes theimage of "Information", "Information Society" and other concepts related to those phenomenons.A division by two fundamental different distinctions of IO are being made. InformationOverload serves as a name for:I. An information-intensive environment.II.
Signalanalys med ATLAS
On Ericsson Ltd in Borås a wireless communication system called MINI-LINK? is produced. In order to sell their product with the best possible quality guaranty, there is a signal processing circuit called ATLAS implemented in the system. This circuit would eventually be useful in the production and for the repairs of the radio units. Our commission was to examine the possibility for this use.
Bibliotekarien som distansarbetare? : förutsättningar för bibliotekarien att utföra sina funktioner på distans
We studied how librarians would adapt to telework, the performance of job responsibilitiesfrom home. We found'that all duties could be accomplished. but to varied extents.Computerbased searches, interlibrary loans, acquisitions, indexing and telephone referenceservices are the duties most likely to adapt to telework whereas cataloguing andclassification probably are best performed in the ordinary workplace.Most duties would demand access to technical means of assistance when performed fromhome. Connections to the library's local network, directly or via Modem, are requiredbecause it is unrealistic to expect librarians to telework with fewer tools than theyordinarily have available. Although librarians generally believe that teleworking will nothave a large irnpact on the operation of the library, most would like to telework.Whether teleworking is a viable strategy depends on the characteristics of the duties, thelibrarian's desire to telework, but also on the size of the library, the size of its staff, thelibrary's activities, and how work is distributed between librarians..
Kunskapssamhället och skolan - vilken framtid möter våra lärare, elever och bibliotekarier?
The essay concerns "the knowledge society", IT and the possibilities of school being changedto meet the future. The purpose was to reflect the ideas of researchers and authorities concerningwork and education in "the knowledge society" and to illuminate/shed light on theimportance of information technology in this connection, to map organizational and pedagogicalshortcomings in the current school system and the changes that can be needed, and to investigatehow these changes can affect teachers, pupils and librarians.The investigation, which was a text analysis of normative and futurist sources, was especiallydirected towards how Modem information technology can influence education/teaching.The differences between researchers and authorities were most obvious in the view of theimportance of knowledge of facts and central control mechanisms for standards or grading.For the authorities, who were devoid of a thought out/carefully prepared and consequent viewof knowledge and by that also of pedagogics, the information technique was the foremostcause of a change in pedagogy. The researchers also perceived the possibilities of IT, butemphasized the importance of pedagogical innovations irrespective of the technology.
Identitet och påverkan: om unga kvinnor och skönlitteratur
The purpose of this Master's Thesis is to explore the influence of fiction on the identity and self-esteem of young women. The purpose is also to investigate if there are any books that they consider to be of importance for their identity. Furthermore, I investigate what appeals to young women generally in fiction and if it is difficult for them to find books that appeal to them. The primary question posed in this thesis is: How does fiction influence the identity development of young women? The data collection is based on literature on the subject and on interviews with eight young women between 15 and 20 years old.
Folkbiblioteket och postmoderniteten en hermeneutisk studie av debatten om folkbiblioteket i DIK Forum 1998-2002
The main issue of this master is to investigate what influence the phenomenon of postmodernity has on the Swedish public library. Is it possible to talk about the Swedish public library as postmodern, and if so, is it expressed by a postmodern discourse? The concept of postmodernity is defined as an open and inclusive value system where all kind of opinions and preferences take place. According to a postmodern point of view there is no such thing as an objective or general truth. A postmodern ideology does not talk about reality but about realities.
Demonstrationsutrustning för M2M tillämpning
Detta examensarbete är ett utvecklingsarbete av demonstrationsutrustning för enkel visning av fördelarna med M2M-tekniken vid insamling av mätdata och automatisk övervakning. Arbetet består av en praktisk del, som utgörs av demonstrationsväskan, och en mer teoretisk del, som utgörs av demonstrationsprogrammet. Programmet har utvecklats till att med ett mätkort kopplat till en PC samla in mätvärden (spänningar), dessa skickas sedan som ett SMS med ett GSM-Modem till en mottagare. Mottagaren kan vara en serviceman som vill ha felmeddelanden från utrustning inom dennes ansvarsområde, mottagaren kan även vara en server som rymmer en databas vilken används för att spara viktiga mätvärden för längre tid, t.ex. loggning av elförbrukning hos något kraftbolags kund.
Komprimering av HTML-dokument
Denna rapport beskriver varför transmission av data över telenätet är problematiskt och hur datakomprimering kan användas för att öka hastigheten på transmissionen. Datakomprimering används redan nu för att hålla nere storleken på den data som ska skickas, t ex är ofta bilder i JPEG-format eller något annat komprimerat bildformat. Rapporten inriktar sig på komprimering av HTML-dokument då dessa i nuläget inte komprimeras före transmissionen. Först beskrivs ett antal vanliga komprimeringsalgoritmer och sedan väljs en metod ut som verkar lämplig för komprimering av HTML-dokument. Algoritmen modifieras till att utföra bättre komprimering på HTML-dokument genom att använda en kombination av förlustkomprimering och "överblivna" ASCII-koder.
Intresse för e-handel bland svenska lantbrukare :
Sveaverken is a company who manufactures products and equipment for the modern farm enterprise within grain, pork and horse businesses. A large share of Sveaverken's turnover depends on the role as a subcontractor for Delaval within the areas ventilation, manure handling and feeding systems. Sveaverken wants to investigate the possibility to increase sales by establishing new sales channels, for example e-commerce
This thesis is an analysis of the Swedish farmers use of internet, attitudes towards e-commerce and Sveaverken's interest within this area. There is also a minor economic analysis of the cost of establishing the e-commerce site.
The study focuses on farmers who are potential customers to Sveaverken within Sweden.
To examine the farmers opinions about internet and e-commerce a questionnaire was developed and sent out in November 2006, to 500 farmers of which 45% answered.
The results show that the average age of the farmers was 42,5 years.