| The traffic congestion has become the bottleneck, which restricts the development of the urban city all over the world. It not only causes the enormous losing, but also builds the traffic accident, environment pollution, and energy waste. Up till now, the Intelligent Transportation Systems (ITS), which mainly use the information technology, are considered as one of the best ways to solve the traffic problems of the urban city. As the key component of ITS, the Urban Traffic Flow Guidance System can relieve the congestion, reduce the accident rate and environment pollution, increase the efficiency of the transportation, with the assistance of the real-time traffic information. The in-vehicle navigation system is the key part of the traffic flow guidance system. With the in-vehicle navigation system, the driver can avoid the traffic congestion based on the real-time traffic information and the optimal path. From other point of view, the usage of the on-board equipment promotes the traffic flow assignment once more, which achieves the final aim of the traffic flow guidance system. Custom in-vehicle navigation system is controlled by hand, drivers must distract attention from driving when they use system, so it is inconvenience and it is a hidden danger. Speech control in-vehicle navigation system is control system by speech, drivers use microphone to achieve function operation, it is safer and more convenience in a certain degree. This thesis is based on"985"project of JiLin University: Research on the intelligent in-vehicle information system, achieve the multimodal information input technology and three-dimensional display technology of the in-vehicle navigation device. Develop the software user interface and hardware user interface, thereby constructing a human-computer interaction system of. the in-vehicle navigation device.In chapter one, after the analysis on the reasons of the traffic jam, some ways to solve the problem, such as road and transportation infrastructure constructing, traffic control and traffic flow guidance, were summarized by the paper. The urbantraffic flow guidance system is universally accepted as one of the best ways to reduce the traffic jam. According to different guidance mode, the guidance system can be divided into two classes: central guidance system and distributed guidance system. In this chapter, the two different guidance systems and some of the typical foreign traffic flow guidance are described. Then the history and R&D situation of the in-vehicle navigation system were analyzed, and analyzing the history and R&D situation of the human-computer interaction system of the in-vehicle navigation system. Finally introduce the research meaning and content of the thesis.In chapter two, thesis is starting with analyzing the influence that in-vehicle navigation device lead to the driver operation, summed up the main problems of typical existing in-vehicle navigation device in interactive technology and interface design. On this basis, putting forward the two key technologies and two key contents of this thesis, discussed their respective necessity.Chapter three of this thesis completed the hardware system of the human-computer system. First a brief introduction is given to the on-board navigation system hardware device, then introduce the hardware selection process of main show equipment and control equipment, the final give a presentation on the hardware integration process of the human-computer system.The fourth chapter, this chapter is part of software design in the thesis. Make realize the two key technologies, coupled with the development of the software interface of human-computer interaction system. For achieve the 3-D display technology. Multigen Creator first real-time modeling software to establish a dedicated vehicle navigation 3D electronic map the display model, then Multigen Vega 3D library operations, Visual C programming language, designed a in-vehicle 3D Scene interface thus realizing the 3-D display technology in the on-board navigation system. Through the specific analysis on the research content of the multimodal input technology, develop the multi-center conformity model and arithmetic, the algorithm is proved superior through practical tests. In the design ofsoftware human-computer interface, based on the "people-centered" design concepts, with the general design principles, developed a simple convenient accessible software human-computer interface of the in-vehicle navigation device.Chapter five is the sum-up of the study fruits and the prospect for the future.The followings are the main study fruits in this paper:Analysis the influence of the in-vehicle navigation devices to driver operation, and on this basis put forward the content and key technologies of this thesis. Complete the hardware equipment selection and integration of the human-computer interaction system.Based on the touch screen and voice input techniques, develop a kind of multi-center input technology software system. Points out the direction of the development for future vehicle navigation system information input technology. Develop the in-vehicle navigation 3D display technology software system. Provide a theoretical and technical support for the ultimate realization of a 2D map-based, 3D scene auxiliary display technology.Design and develop software human-computer interface of in-vehicle navigation device.The followings are the prospect for the future in this paper:1. How to use more natural and more efficient new interact technique in on-board navigation system?2. In order to sustaining these new interact technique, how to improve on our multi-center integration module?3. For keeping the friendly degree of the human-computer interface,...
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