Jiaming Garmin, founded in 1989, is a well-known brand of global satellite positioning and navigation system, and is committed to the design and development of GPS products.
Renwoyou, an influential brand in the car navigation industry, a leading enterprise in the domestic space information field, a listed company, a high-tech enterprise, Beijing He Zhong stronghold technology Co., Ltd.
Zhongheng DEC, 1994, one of the top ten brands of GPS navigation equipment, is committed to the research, development, manufacture and sales of digital technology. Is a well-known domestic enterprise, Beijing Zhongheng Xingye Technology Group Co., Ltd.
Freelander, one of the leading manufacturers of GPS terminal equipment, a high-tech enterprise with relatively high research and development level in the industry, Shenzhen Yingke Chuangzhan Technology Co., Ltd.
Newman Newsmy, a famous trademark in Beijing, a high-tech enterprise, a well-known brand in China digital industry, a leading enterprise in electronic digital field, Hunan Newman Digital Technology Co., Ltd. ..
Radar Conqueror, a company specializing in the development and design of GPS and radar warning equipment, Xiamen Yirui Technology Co., Ltd. is affiliated to Taiwan Province Yirui Technology Co., Ltd.
E luhang, an innovative consumer electronic product enterprise, relates to the fields of automobile electronic product production /R&D/ sales/logistics, etc., Guangdong Yuanfeng Electronic Technology Co., Ltd. ..
Tongteng TomTom, 199 1 was born in the Netherlands. It is a leading brand of high-end navigation products in the world and one of the more innovative consumer electronics brands. Tongteng Navigation Technology (China) Co., Ltd.
Zhengtu, an enterprise dedicated to the manufacture of GPS navigator/safety early warning device series vehicle-mounted intelligent terminal products, is a leading brand in the industry, Shenzhen Lianweiya Electronic Technology Co., Ltd.,
Kailide Careland, famous for providing map software, focuses on car navigation technology and serves the huge domestic car networking user group, Shenzhen Kailide Technology Co., Ltd.
Extended data:
Vehicle navigation system is mainly composed of navigation host and navigation display terminal. The built-in GPS antenna will receive data information from at least three of the 24 GPS satellites orbiting the earth, so as to determine the current position of the car. By matching the position coordinates determined by the navigation host through GPS satellite signals with the electronic map data, the accurate position of the car in the electronic map can be determined.
On this basis, it will realize many functions, such as driving navigation, route recommendation, information inquiry, playing AV/TV and so on. The driver only needs to look at the picture on the display screen, listen to the voice prompt and manipulate the remote control in his hand, so as to realize the above functions and drive easily.
Automobile GPS navigation system consists of two parts:
Part of it consists of GPS receiver and display equipment installed in the car; The other part is composed of computer control center, and the two parts are connected by positioning satellites.
The computer control center is authorized by the motor vehicle management department and is responsible for observing the dynamics and traffic conditions of designated monitoring vehicles within its jurisdiction at any time. Therefore, the whole car navigation system has at least two functions: one is the car trace monitoring function. As long as the coded GPS receiver is installed in the car, the car can indicate its position through the electronic map of the computer control center no matter where it goes.
The other is the driver's guidance function. Car owners can store electronic maps of traffic routes in various areas on floppy disks. As long as the floppy disk is inserted into the vehicle receiving device, the position and current traffic state of the vehicle will be displayed on the display screen immediately. You can not only enter the destination you want to go to, but also work out the best driving route in advance. You can accept the instructions from the computer control center to choose the driving route and direction of the vehicle.
References:
Car navigation-Baidu encyclopedia