Intelligent Vehicles
Intelligent vehicle is a comprehensive system integrating environment perception, planning decision making, multi-level auxiliary driving and so on. It is a high-tech enterprise which integrates computer, modern sensing, information fusion, communication, artificial intelligence and automatic control. Technical complex. At present, the research on intelligent vehicles is mainly aimed at improving the safety and comfort of automobiles, and providing excellent interface between people and vehicles. In recent years, intelligent vehicles have become the world's vehicle engineering research hot spots and the automotive industry growth of new impetus, many developed countries will be included in their respective focus on the development of intelligent transportation system.
Summary
The so-called "intelligent vehicle", is based on the ordinary vehicle to increase the advanced sensors (radar, camera), controllers, actuators and other devices, through the car sensor system and information terminals to achieve with people, cars, Information exchange, so that vehicles with intelligent environmental awareness, can automatically analyze the safety and dangerous state of vehicle driving, and the vehicle in accordance with the wishes of people to reach the destination, and ultimately achieve the purpose of alternative people to operate.
Smart cars are different from what they say in automatic driving, and it refers to the use of a variety of sensors and intelligent road technology to achieve automatic car driving. Smart cars first have a set of navigation information database, there are national highways, general roads, urban roads and a variety of service facilities (restaurants, hotels, gas stations, attractions, parking) information; followed by GPS positioning system, the use of This system accurately locates the location of the vehicle and compares it with the data in the road database to determine the direction of travel. The road condition information system provides real-time traffic information such as traffic jams, accidents, etc. The vehicle anti-collision system, including the detection radar, information processing system, driving control system, control the distance with other vehicles, in the detection of obstacles in time to slow down or brake, and the information passed to the command center and other vehicles ; Emergency alarm system, if an accident, automatically report the command center to rescue; wireless communication system for automotive and command center contact; automatic driving system, used to control the car's ignition, change the speed and steering.
Usually the operation of the vehicle can be regarded as a control process for a complex nonlinear system with multiple input, multiple output, complex input and output relationships, and uncertain multi-interference sources. The driver is required to accept information such as roads, crowds, directions, pedestrians, etc., but also the information such as vehicle speed, lateral offset, yaw rate, etc., and then through judgment, analysis and decision making, and with their own driving Experience to compare, to determine the manipulation should be done, and finally by the body, hands, feet, etc. to complete the action of the vehicle. So the whole driving process, the driver's human factors accounted for a large proportion. Once the driver for a long time driving, fatigue driving, to determine the situation of the error, it is easy to cause traffic accidents.
Through the vehicle intelligent technology research and development, can improve the vehicle control and driving level, to ensure the safety of vehicles driving smooth and efficient. The continuous improvement of the intelligent vehicle control system is equivalent to extending the driver's control, visual and sensory functions, and can greatly promote the safety of road traffic. The main feature of intelligent vehicles is to make up for the shortcomings of human factors, so that even in very complex road conditions, but also automatically manipulate and drive the vehicle around the obstacles, along the scheduled road trajectory.
Basic Structure
From the specific and practical aspects, smart cars are more mature and predictable functions and systems are mainly intelligent driving system, life service system, security protection system, location service system and vehicle service system, all participating enterprises also Mainly around the above functions of these systems development.
In this case, each system actually includes some subdivided systems and functions, such as intelligent driving system is a big concept, but also a most complex system, which includes: intelligent sensor system, intelligent computer system, auxiliary driving system , Intelligent bus system, etc .; life service system includes audio and video entertainment, information query and various biological services and other functions; and like location service system, in addition to be able to provide accurate vehicle positioning function, but also let the car with another car To achieve automatic location interoperability, in order to achieve the objectives of the intended purpose of travel.
Smart cars have the common effect of these systems, equivalent to the installation of the car "eye", "brain" and "foot" of the TV camera, computer and automatic control system and the like.
Intelligent Vehicles
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