An example and principle analysis of car navigation using GPS?

Application of GPS in automobile navigation and traffic management Three-dimensional navigation is the main function of GPS. Planes, ships, ground vehicles and pedestrians can use GPS navigator to navigate. Car navigation system is a new technology developed on the basis of Global Positioning System (GPS). The vehicle navigation system consists of GPS navigation, autonomous navigation, microprocessor, speed sensor, gyro sensor, optical drive and LCD. Combining GPS navigation system with electronic map, radio communication network and GPS application computer vehicle management information system can realize vehicle tracking and traffic management and other functions.

2008 is called "the first year of 3G" in China. As we all know, TD-SCDMA-3G standard is the most popular in the domestic communication field. As a new generation of communication technology, 3G brings people a lot of expectations. The full issuance of 3G licenses has also become the focus of attention. In fact, the domestic GPS navigation field is also in transition, and the third generation of PND navigation products came into being, bringing people into a brand-new navigation era.

Satellite navigation application industry is playing an increasingly important role in the national economy, and will become the highlight of the development in the 11th Five-Year Plan. During the Eleventh Five-Year Plan period, the application of satellite navigation in aviation, waterway, railway, construction, telecommunications, electric power and other fields will have great development space.

The development trend of satellite navigation technology is mainly manifested in three aspects: first, the coexistence of satellite navigation systems will improve the usability of the systems and broaden the application fields; Second, the multi-element integrated navigation technology is being popularized and applied, mainly including the combined application of GPS and mobile communication base station positioning, gyro and dead reckoning technology; Thirdly, the combination of satellite navigation and wireless communication and other high technologies, such as GPS receivers embedded in communication, security and consumer electronic products (such as mobile phones, portable personal computers, personal digital assistants and watches), has fundamentally promoted the overall development of information technology.