嵌入式实验论文英语翻译

好难啊，一切要靠自己，

Car navigation system with audio sub-system design to achieve Car multimedia navigation system is installed in the embedded environment used in the automotive multimedia systems, navigation systems. Compared with the handheld personal navigation device (PND), car navigation multimedia products require more stringent to deal with environmental and performance requirements. First of all, is the work of industrial products over the ambient temperature requirements. Secondly, the ignition system, power generation systems, such as strong electromagnetic interference on the receiving very weak GPS signal interfere with the navigation system. In addition, the vibration requirements of the product is also a problem. Other like salt spray, humidity, oil and other environmental factors, all of the automotive, higher demands. Even in the worst circumstances, the reliability requirements of automotive products still need to maintain a high level above. Therefore to design a system, we need in terms of reliability, availability, cost, etc. than in other household products and general industrial products, many times more energy and time. A car products, after the completion of the design, it is necessary to install the application into the car, to go through a very lengthy and complex testing process, in particular, is a long road test, the actual technical and engineering needs, new technologies lead to new devices into the vehicle greatly reduce the probability and speed of consumption and much slower than other areas. Car audio products, from radios, tape drives to CD players, after several decades to improve and enhance the step-by-step process. Car CD has just begun in popularity, the products have been facing car navigation, Internet, and even features such as mobile computing into the pressure of rapid and practical needs, solid storage and digital compression of music, digital audio broadcasting and digital TV broadcasting, etc. continuous functions into automotive systems. Types of car audio products increased, the car is bound to make a small internal space becomes more crowded. This paper is to study through the design of multi-functional audio system, car multimedia systems makes the audio interface can be achieved using more than one. This paper details the design of multi-purpose audio systems thinking and the realization of the program. In this paper, the system has been designed to achieve an interface can support three audio device. Key words: navigation system; 32; MCU; car audio and video products; multimedia systems