What are the components of the on-board navigator?
The vehicle navigation system is mainly composed of navigation host and navigation display terminal. The built-in GPS antenna will receive the data information transmitted by at least 3 of the 24 GPS satellites around the earth, so as to determine the current position of the car. The navigation host can determine the accurate position of the vehicle in the electronic map by matching the position coordinates determined by the GPS satellite signal with the electronic map data.
On this basis, it will realize various functions such as vehicle navigation, route recommendation, information query, playing MV / TV and so on. The driver only needs to watch the screen on the display, listen to the voice prompt, and operate the remote control in his hand to realize the above functions, so as to drive easily and freely.
The vehicle GPS navigation system consists of two parts:
One part is composed of GPS receiver and display equipment installed on the vehicle; The other part is composed of computer control center, and the two parts are connected through positioning satellites.
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 the vehicles designated for monitoring within its jurisdiction at any time. Therefore, the whole vehicle navigation system has at least two functions:
One is the vehicle tracking monitoring function. As long as the encoded GPS receiving device is installed on the vehicle, the vehicle can indicate its location through the electronic map of the computer control center wherever it travels;
The other is the driving guide function. The owner can store the electronic map of the traffic route of each region on the floppy disk. As long as the floppy disk is inserted into the vehicle receiving device, the display screen will immediately display the location of the vehicle and the current traffic status. You can enter the destination and prepare the best driving route in advance, It can also accept the instructions of the computer control center to select the route and direction of the car.
Article source: Jiangmen vehicle navigator http://www.aeaholdings.com.cn
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