Dissertations / Theses on the topic 'Automobile navigation systems'
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Dingus, Thomas A. "Attentional demand evaluation for an automobile moving-map navigation system." Diss., Virginia Tech, 1987. http://hdl.handle.net/10919/53632.
Full textPh. D.
Devine, M. L. "A dead-reckoning system for automobile navigation." Thesis, Cranfield University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309666.
Full textZhu, Weihua. "Design and development of novel routing methodologies for dynamic roadway navigation systems." Diss., [Riverside, Calif.] : University of California, Riverside, 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3350082.
Full textIncludes abstract. Available via ProQuest Digital Dissertations. Title from first page of PDF file (viewed March 12, 2010). Includes bibliographical references (p. ). Also issued in print.
Ngai, Chi-kit. "Reinforcement-learning-based autonomous vehicle navigation in a dynamically changing environment." Click to view the E-thesis via HKUTO, 2007. http://sunzi.lib.hku.hk/hkuto/record/B39707386.
Full textTravis, William E. Bevly David M. "Methods for minimizing navigation errors induced by ground vehicle dynamics." Auburn, Ala., 2006. http://repo.lib.auburn.edu/2006%20Spring/master's/TRAVIS_WILLIAM_14.pdf.
Full textChen, Qi. "Studies in autonomous ground vehicle control systems structure and algorithms /." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1165959992.
Full textNgai, Chi-kit, and 魏智傑. "Reinforcement-learning-based autonomous vehicle navigation in a dynamically changing environment." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B39707386.
Full textKubička, Matěj. "Constrained Time-Dependent Adaptive Eco-Routing Navigation System." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLS434/document.
Full textEco-routing is a vehicle navigation method that selects those paths to a destination that minimize fuel consumption, energy consumption or pollutant emissions. It is one of the techniques that attempt to lower vehicle's operational cost and environmental footprint. This work reviews the current eco-routing methods and proposes a new method designed to overcome their shortcomings. Most current methods assign every road in the road network some constant cost that represents either vehicle's consumption there or the amount of emitted pollutants. An optimal routing algorithm is then used to find the path that minimizes the sum of these costs. Various extensions are considered in the literature. Constrained eco-routing allows imposing limits on travel time, energy consumption, and pollutant emissions. Time-dependent eco-routing allows routing on a graph with costs that are functions of time. Adaptive eco-routing allows updating the eco-routing solution in case it becomes invalid due to some unexpected development on the road. There exist published optimal eco-routing methods that solve either the time-dependent eco-routing, or constrained eco-routing, or adaptive eco-routing. Each comes with considerably higher computational overhead with respect to the standard eco-routing and, to author's best knowledge, no published method supports the combination of all three: constrained time-dependent adaptive eco-routing. It is argued in this work that the routing costs are uncertain because of their dependence on immediate traffic around the vehicle, on driver's behavior, and other perturbations. It is further argued that since these costs are uncertain, there is little benefit in using optimal routing because the optimality of the solution holds only as long as the routing costs are correct. Instead, an approximation method is proposed in this work. The computational overhead is lower since the solution is not required to be optimal. This enables the constrained time-dependent adaptive eco-routing
Kang, Yue. "Sensor-based navigation for robotic vehicles by interaction of human driver and embedded intelligent system." Thesis, Compiègne, 2016. http://www.theses.fr/2016COMP2291.
Full textThis thesis presents an approach of cooperative navigation control pattern for intelligent vehicles in the context of human-vehicle interaction, in which human driver and autonomous servoing system cooperate for the purpose of benefiting from mutual advantages of manual and auto control. The navigation of the vehicle is performed in parallel by the driver and the embedded intelligent system, based on the perception of the environment. The cooperative framework we specify concerns the analysis and correction of the human navigation gestures by the intelligent system for the purpose of performing local navigation tasks of road lane following with obstacle avoidance. The human-vehicle interaction algorithm is based on autonomous servoing components as Visual Servoing (VS) controllers and obstacle avoidance method Dynamic Window Approach (DWA) based on Occupancy Grid, which are supported by the environment perception performed carried out by on-boarded sensors including a monovision camera and a LIDAR sensor. Given the technical/legal impossibility of validating our interaction method on our robotic vehicle (a robotic Renault Zoé), the driver-in-the-loop structures of system are designed for simulative environment of both Matlab and SCANeRTM Studio. In Matlab environment human driver is modeled by a code-based Human Driver Behaviour (HDB) Controller, which generates potential dangerous behaviors on purpose as manual control of the cooperative system. In SCANeR Studio environment the HDB is replaced by real-time manual command (a real human driver) via driving interface of this simulator. Results of simulative validation show the feasibility and performance of the cooperative navigation system with respect to tasks of driving security including road lane following, obstacle avoidance and safe distance maintenance
Zinoune, Clément. "Autonomous integrity monitoring of navigation maps on board intelligent vehicles." Thesis, Compiègne, 2014. http://www.theses.fr/2014COMP1972/document.
Full textSeveral Intelligent Vehicles capabilities from Advanced Driving Assistance Systems (ADAS) to Autonomous Driving functions depend on a priori information provided by navigation maps. Whilst these were intended for driver guidance as they store road network information, today they are even used in applications that control vehicle motion. In general, the vehicle position is projected onto the map to relate with links in the stored road network. However, maps might contain faults, leading to navigation and situation understanding errors. Therefore, the integrity of the map-matched estimates must be monitored to avoid failures that can lead to hazardous situations. The main focus of this research is the real-time autonomous evaluation of faults in navigation maps used in intelligent vehicles. Current passenger vehicles are equipped with proprioceptive sensors that allow estimating accurately the vehicle state over short periods of time rather than long trajectories. They include receiver for Global Navigation Satellite System (GNSS) and are also increasingly equipped with exteroceptive sensors like radar or smart camera systems. The challenge resides on evaluating the integrity of the navigation maps using vehicle on board sensors. Two types of map faults are considered: Structural Faults, addressing connectivity (e.g., intersections). Geometric Faults, addressing geographic location and road geometry (i.e. shape). Initially, a particular structural navigation map fault is addressed: the detection of roundabouts absent in the navigation map. This structural fault is problematic for ADAS and Autonomous Driving. The roundabouts are detected by classifying the shape of the vehicle trajectory. This is stored for use in ADAS and Autonomous Driving functions on future vehicle trips on the same area. Next, the geometry of the map is addressed. The main difficulties to do the autonomous integrity monitoring are the lack of reliable information and the low level of redundancy. This thesis introduces a mathematical framework based on the use of repeated vehicle trips to assess the integrity of map information. A sequential test is then developed to make it robust to noisy sensor data. The mathematical framework is demonstrated theoretically including the derivation of definitions and associated properties. Experiments using data acquired in real traffic conditions illustrate the performance of the proposed approaches
Nair, Sidharth. "A Multiple Antenna Global Positioning System Configuration for Enhanced Performance." Ohio University / OhioLINK, 2004. http://www.ohiolink.edu/etd/view.cgi?ohiou1090937438.
Full textNguyen, Dinh-Van. "Réseaux de capteurs sans-fil pour la cartographie à l'intérieur et la localisation précise servant la navigation à basse vitesse dans les villes intelligentes." Thesis, Paris Sciences et Lettres (ComUE), 2018. http://www.theses.fr/2018PSLEM029/document.
Full textWith the increasing demand for urban space, more and more multistory carparks are needed. Although these carparks help to utilize urban space more efficient, they also introduce a new problem. Reports suggest approximately 70 million hours of parking slot searching each year, equivalently 700 million euros loss for France alone. In addition, carparks uses are exceeding their original purposes. Demanding features such as electric charger, online booking of parking spaces, dynamic guidance or mobile payment etc. turn a carpark into a competitive smart environment. One solution to this problem is to develop an autonomous navigation system for intelligent vehicles in the carpark situation. The thesis will identify one of these sub-tasks namely localization in GPS-denied environments. This thesis will present a novel method to solve the indicated problem while keeping the system follows four criteria: availability, scalability, universality and accuracy. There are two main steps: (1) a solution to replicate the GPS behaviour for the GPS-denied environment, and (2) a framework that allows the fusion of GPS-like systems with other localization methods to achieve a high localization accuracy. First, a Wi-Fi Fingerprinting localization system is employed. An approach using an ensemble neural network on a hybrid Wi-Fi fingerprinting database is proposed in this thesis. Experiments in a year-long duration show that this system is capable of localizing vehicles with 2.25m of mean error in the global coordinate frame (WGS84). Second, a complete localization solution must be a fusion of multiple techniques. This allows global as well as local levels of localization to function together. At the same time, having redundancy in the system boosts accuracy and reliability. In this thesis, a flexible fusion framework for multiple localization sensors is proposed. This fusion framework will not only deal with the GPS-denied environment but could be potentially used in the GPS-aided environment and provide a smooth transition between the two areas. To accomplish this demanding task, a Gaussian Mixture Model Particle Filter is developed. While the motion model of this particle filter incorporates data from the IMU (Inertial Measurement Unit) or laser-SLAM, the correction model is a Gaussian mixture model of multiple observations obtained from the Wi-Fi fingerprinting localization system. With two intelligent vehicles (a Cybercar and a Citroen C1 car), 64 experiments were carried out to validate the framework. A mean localization error of 0.5m is achieved in a global coordinate frame. Compare to other solutions with 0.2m of mean localization error in local coordinate frames; this proposed solution has advantages in terms of scalability, availability and universality as well
Puthon, Anne-Sophie. "Détermination de la vitesse limite par fusion de données vision et cartographiques temps-réel embarquées." Phd thesis, Ecole Nationale Supérieure des Mines de Paris, 2013. http://pastel.archives-ouvertes.fr/pastel-00957392.
Full textHamama, Houda. "Impact des situations d’attention partagée sur le traitement de l’information chez les conducteurs novices." Thesis, Lyon 2, 2010. http://www.theses.fr/2010LYO20042/document.
Full textThis PhD thesis aims to study the distraction effects on driver performances. While driving, a driver must be able to maintain the vehicle control and also to process the relevant information from the road environment. These abilities can be impaired by the introduction of information and communication systems inside the car which put the driver in dual-task situation and increase the sources of distraction. This work tries to determine how the population of young novice drivers, characterized by a high crash rate (Clarke et al. 2005) and by poorly developed driving skills (Whelan et al. 2004) manages these situations of time sharing.Two experimentations were conducted. The first one, on real road, aims at analyzing the effects of simultaneously use of a navigation system and a mobile phone on the information processing (achieve by analyzing behavior parameters). The second one, in laboratory, aims at completing the first results, by focusing on modalities of research and handling information according to the drivers’ experience (novice or experienced). According to the driving experience, results are ambivalent in terms of information processing during divided attention situations
Wu, Tung-Chen, and 吳東宸. "A Study on the Design of Voice Navigation of Automobile Navigation System." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/94893055901812457058.
Full text大同大學
工業設計學系(所)
96
With advances in technology as well as in computer, communication and consumer electronic products, automotive navigation systems have increasingly been used by a lot of drivers. Moreover, the development of voice navigation functions enables automotive navigation systems to provide information required by drivers in different environment anytime. Although voice information aims at reducing the occasions in which drivers move their eyesight from the road, deficiencies in voice navigation functions may nevertheless become a safety concern. Therefore, this study put focuses on the voice navigation functions of currently available automotive navigation systems. Moreover, a new broadcasting pattern of voice information is designed so as to improve the rate of correct driving. By collecting questionnaires answered by those who have used relevant products and those who have not, this study first analyzes how drivers comprehend information about different road sections provided by automotive navigation systems and the issues involved. The results show that drivers may fail the driving tasks due to reminders of switching lanes not being clearly informed as well as the timing of final voice broadcasting not being varied in accordance with the speed of the car. Accordingly, driving simulation tests are conducted based on these two scenarios. With respect to reminders of switching lanes, one single clear sound may reduce the rate of failing driving tasks, especially in the case of roads with both fast and slow lanes, where rates of correct driving can be increased significantly. Moreover, voice broadcasting is the most ideal way for reminders, while monitor display the worst. Finally, broadcasting timing modified based on the [speed × 2.5 seconds] formula can effectively reduce the happening of incorrect driving.