China's top ten car navigation brands:
Garmin, founded in 1989, is a well-known brand of global satellite positioning and navigation systems. It is committed to the design and development of GPS products. Beijing Garmin Avionics TECHNOLOGY LIMITED.
Renwoyou, an influential brand in the car navigation industry, a leading enterprise in the field of domestic spatial information, a listed company, a high-tech enterprise, Beijing Hezhong Strong Technology Co., Ltd.
Zhongheng DEC, founded in 1994, is one of the top ten brands of GPS navigation equipment. It is committed to the research, development, manufacturing and sales of digital technology. It is a well-known domestic enterprise, Beijing Zhongheng Industrial Technology Group Co., Ltd.
Freelander, one of the leading GPS terminal equipment manufacturers, a manufacturer with relatively high R&D level in the industry, a high-tech enterprise, Shenzhen Yingke Chuangzhan Technology Co., Ltd.
Newman Newsmy, a famous trademark in Beijing, a high-tech enterprise, a well-known brand in China's digital industry, a leading enterprise in the electronic and digital field, Hunan Newman Digital Technology Co., Ltd.
Radareye, the conqueror, is a company specializing in the development and design of GPS and radar warning products. Xiamen Ruiyi Technology Co., Ltd. is affiliated to Taiwan Ruiyi Technology Co., Ltd.
eLuhang, an innovative consumer electronics company, is involved in automotive electronics production/research and development/sales/logistics and other fields, Guangdong Yuanfeng Electronic Technology Co., Ltd.
TomTom, founded in the Netherlands in 1991, is a leading brand of high-end navigation products in the world and one of the most innovative consumer electronics brands. TomTom Navigation Technology (China) Co., Ltd.
Zhengtu, an enterprise dedicated to manufacturing GPS navigator/safety warning instrument series vehicle-mounted intelligent terminal products, industry-leading brands, Shenzhen Lianvia Electronic Technology Co., Ltd.,
Careland, Shenzhen Kailed Technology Co., Ltd. is famous for providing map software, focusing on vehicle navigation technology and serving the largest Internet of Vehicles user group in China.
Extended information:
The vehicle navigation system is mainly composed of a navigation host and a navigation display terminal. The built-in GPS antenna receives data from at least 3 of the 24 GPS satellites orbiting the earth to determine the car's current location. The navigation host can determine the exact position of the car on the electronic map by matching the position coordinates determined by the GPS satellite signal with the electronic map data.
On this basis, various functions such as driving navigation, route recommendation, information query, and AV/TV playback will be realized. The driver only needs to watch the picture on the display, listen to the voice prompts, and operate the remote control in his hand to realize the above functions, thereby driving easily and freely.
The car GPS navigation system consists of two parts:
One part consists of the GPS receiver and display device installed on the car; the other part consists of the computer control center, and the two parts use positioning satellite to make contact.
The computer control center is authorized and established by the motor vehicle management department. It is responsible for observing the dynamics and traffic conditions of designated monitored cars within its jurisdiction at any time. Therefore, the entire car navigation system has at least two major functions: one is Car trace monitoring function, as long as the encoded GPS receiving device is installed on the car, the car can indicate its location through the electronic map in the computer control center no matter where it travels.
The other is the driving guide function. Car owners can store electronic maps of traffic routes in various areas on a floppy disk. As long as the floppy disk is inserted into the car's receiving device, the display will immediately show the location of the car. The location of the area and the current traffic status can be used to input the destination and pre-program the best driving route. It can also accept instructions from the computer control center to select the route and direction of the car.
Reference material: Car navigation-Baidu Encyclopedia