The thesis presented in this report has been made on behalf of Scania and their basic frame design department with the subject to solve an implementation of a weight Sensing system in the chassis. The system is supposed to be implemented in the seat springs, and the reason for this is that all the force will have to go through the weight Sensing transducers. With all the force going through the transducers the weight Sensing system will not be sensitive for the differences in tolerances from manufacturing. The transducers could be pre-calibrated to avoid a calibration of the whole vehicle after it?s completed from the manufacturing line.Weight Sensing systems is today a reality in trucks with air springs.

The thesis presented in this report has been made on behalf of Scania and their basic frame design department with the subject to solve an implementation of a weight Sensing system in the chassis. The system is supposed to be implemented in the seat springs, and the reason for this is that all the force will have to go through the weight Sensing transducers. With all the force going through the transducers the weight Sensing system will not be sensitive for the differences in tolerances from manufacturing. The transducers could be pre-calibrated to avoid a calibration of the whole vehicle after it?s completed from the manufacturing line.Weight Sensing systems is today a reality in trucks with air springs.

The thesis presented in this report has been made on behalf of Scania and their basic frame design department with the subject to solve an implementation of a weight Sensing system in the chassis. The system is supposed to be implemented in the seat springs, and the reason for this is that all the force will have to go through the weight Sensing transducers. With all the force going through the transducers the weight Sensing system will not be sensitive for the differences in tolerances from manufacturing. The transducers could be pre-calibrated to avoid a calibration of the whole vehicle after it?s completed from the manufacturing line.Weight Sensing systems is today a reality in trucks with air springs.

This bachelor thesis is about an ultrasonic sensor, implemented in a bubble chamber in Artis. The sensor consists of the piezoelectric sensor and an electronic control circuit. The control circuit consists of a programmable microprocessor, PIC18F2420 and a circuit, which sends the excitation signal to the piezoelectric sensor, and later receives the echo. This bachelor thesis consists also of a theoretical study, which examines different techniques of liquid level Sensing in a chamber. The study discusses which factors are important in liquid level Sensing and examine accepted methods.

Due to an increased population in cities the need of densification of cities increases. This means that the amount of ecological elements in the city is at risk of decreasing. Ecological services contribute to the city?s climate by softening the negative impacts that densification of cities means. Thus increases the will and ambition in city planning in to preserve greenery.This is an interdisciplinary thesis within the subject of geography that studies Biotope Area Factor (BAF), a planning tool that is used in city planning with the purpose of compensating for lost ecological services associated with new housing estate.

The subject of this thesis is the application of Support Vector Machines on two totally different applications, facial expressions recognition and remote Sensing.The basic idea of kernel algorithms is to transpose input data in a higher dimensional space, the feature space, in which linear operations on the data can be processed more easily. These operations in the feature space can be expressed in terms of input data thanks to the kernel functions. Support Vector Machines is a classifier using this kernel method by computing, in the feature space and on basis of examples of the different classes, hyperplanes that separate the classes. The hyperplanes in the feature space correspond to non linear surfaces in the input space.Concerning facial expressions, the aim is to train and test a classifier able to recognise, on basis of some pictures of faces, which emotion (among these six ones: anger, disgust, fear, joy, sad, and surprise) that is expressed by the person in the picture. In this application, each picture has to be seen has a point in an N-dimensional space where N is the number of pixels in the image.The second application is the detection of camouflage nets hidden in vegetation using a hyperspectral image taken by an aircraft.

The purpose of this thesis was to investigate different methods do measure velocity of pistons in pneumatic cylinders at Bosch Rexroth Teknik AB. Through information of velocity the adjustment of a cylinders damping can be done easier.A future transducer will be used by salesmen, service personnel and customers. This requires a sensor that is easy to apply and use. It is also desirable that the sensor is cheap. A number of possible methods to measure velocity have been presented.

The purpose of this study is to investigate how to use remote Sensing data when making a forest management plan. The main focus of the study is to compare different methods to identify forest stands of a forest property, and by manual measures and estimates try to evaluate the quality of interpreting data. This report is based on survey questions sent to five different organizations working with remote Sensing data. Only two of these where willing to participate in this investigation. The organizations where asked to analyze the same forest property and divide into compartments and make estimations of volume, basal area etc. in every stand.

SammanfattningDagens robotgräsklippare från Husqvarna har en lyftsensor vilken bygger på attkarossen kan röra sig vertikalt i förhållande till chassiet. Detta leder dock till attlösningen i kombination med krocksensorerna gör att karossen förmedlar en icke solidkänsla när potentiella kunder prövar produkten. Husqvarna hoppas att man får flerkunder om det är möjligt att ge produkten en solidare känsla. Ett steg mot detta mål äratt utveckla en ny, icke mekanisk lyftsensor.Ett antal koncept för att lösa problemet har utvecklats och utifrån dessa har ett antallösningar utvecklats. De lösningar vilka har visat sig problematiska jämfört medkravspecifikationen har förkastats och intressanta lösningar undersökts I detalj.Ett koncept har utvecklats till prototyp och det är en lösning med Force Sensingresistors? vilka används för att mäta trycket från de fyra infästningspunkter vilka finnsmellan kaross och chassi.

Titel Sensing social media: En studie om sociala medier som informationskälla påen organisationFörfattare Johan LarssonHandledare Bengt JohanssonUppdragsgivare Current Model Quality, Volvo Personvagnar ABKurs Examensarbete i medie- och kommunikationsvetenskapInstitution Institutionen för journalistik, medier och kommunikation, Göteborgs UniversitetTermin Höstterminen 2013Sidantal 48 (exklusive bilaga)Antal ord 19 365Syfte Att undersöka och kartlägga Volvo Current Model Quality:s arbete med sociala medier idag och utifrån detta samt relevant teori och tidigare forskning ge förslag på framtida arbete med sociala medier sominformationsintag.Metod Kvalitativ respondentintervjuMaterial Sex (6) intervjuer med individer anställda vid Volvo Current Model Quality som till en högre grad använder sig av sociala medier i arbetet. Förinförskaffandet av övergripande information kring sociala medier på Volvo Personvagnar AB och Volvo Personbilar AB utfördes också fyra (4)informantintervjuer.Huvudresultat Sociala medier arbetas med till en högre grad av sex av trettioen anställda inom ?Teknisk support och produktuppföljning?. Dessa sex individers arbete varierar i form och användningsområdena som ses för sociala medier varierar också stort. De sex individerna är innovators för sitt arbete med sociala medier och har sina egna förståelser för vad sociala medier är.

Wetlands play an important role in the ecosystem. They reduce the impact of flow flux in the drainage area, acts as upholder of biodiversity, as an esthetic and recreational component in the landscape and they have the ability to reduce nutrients such as nitrogen, and help preventing eutrophication in costal areas.The number of wetlands in Scania have, due to the intensified agriculture been reduced to maximize the area suitable for crops.However since the mid 80th the consequences of this has been acknowledged, and many wetlands have been restored.This master?s thesis aim to see what impact this development have had on wetlands in Scania over the last 60 years. And also look at some of those factors important for the efficiency of nitrogen removal in wetlands. During the process a detailed manual for inventories of this sort was created.The material used to execute the inventory of wetlands where aerial photographs over Scania from the 1940th, 1980th and 2000.

Data retrieved from airborne laser scanning represents a new source of forest data. Today, the technology has matured so that it can function in an operational environment. The aim of this study was to compile areas of application of laserdata in forestry. Moreover to analyze costs and accessibility of laserdata. The goal was to provide private forest owners information to support assessments of possible benefits of laserdata.

Active sensors are used a lot in the society and industry, for example to gain better control over processes or to get proximity Sensing features in different products. Within industry there is great interest in developing safe automation products that can be controlled with high accuracy but still at a low cost.The goal of this project is to develop a prototype of a non-contact rangefinder that measures distance using infrared light. The sensor is to be used for various applications in industries with relatively high accuracy and be compact, but at a low cost. By implementing a rangefinder into a product, more accurate detections of an object?s presence can be done.In this project a new distance sensor, EPC600 from ESPROS, was used.

The last decades have shown increased nitrogen leeching from soil to water recipients. This is inSweden mainly due to over-manuring of agriculture land, effectivization of drainage systems and thedeclining extent of wetlands. The accumulated amount of nitrogen in water doesn?t only make itunsuitable for use by humans and cattle, but also decreases the biological diversity as well as negativelyaffect tourism and fish industry. In the most severe cases shallow maritime grounds can be completelydepleted of oxygen due to decomposition of the increased amount algae and plankton growth.This study have the aim to describe and quantify the nitrogen leeching from the Genevad drainagebasin, located in southern Halland, Sweden.

SammanfattningExamensarbetet har syftat till att undersöka möjligheten att utrusta Husqvarnas autonomagräsklippare med avståndssensorer. Dessa ska hindra gräsklipparen från att kollidera med hinder i sinomgivning. Gräsklipparen arbetar i en miljö där väder, temperatur, ljusförhållanden och underlagvarierar kraftigt. Detta innebär att kravet på sensorerna är högt.Av de sensorer som undersökts har det visat sig att ultraljud och ?structured light? är de system sombäst skulle kunna uppfylla all dessa krav till ett rimligt pris.I examensarbetet undersöks därför ultraljudssensorer från företaget Maxbotix närmare ochimplementeras i en prototyp.