Guanyan Report Network Guanyan Tianxia 2022-05-07 08:30 Published in Hunan."GPS navigator is an instrument that can help users accurately locate the current location and calculate the itinerary accord...

Guanyan Report Network Guanyan Tianxia 2022-05-07 08:30 Published in Hunan.

"GPS navigator is an instrument that can help users accurately locate the current location and calculate the itinerary according to the established destination. GPS navigator guides users to the destination through map display and voice prompts. It is mainly installed on cars. It has functions such as map query, route planning, automatic navigation and automatic audio guide."

——Guanyan Report Network

ChinaBaoGao.com

GPS navigator is an instrument that can help users accurately locate the current location and calculate the itinerary according to the established destination. GPS navigator guides users to the destination through map display and voice prompts. It is mainly installed on cars. Generally, there are Functions such as map query, route planning, automatic navigation and automatic audio guide. The operation of the GPS navigator relies on the Global Positioning System (GPS), which is composed of three parts: space satellites, ground monitoring and user reception. What we are using at present is the car GPS navigator. Therefore, the GPS navigator mentioned in this article is mainly a car GPS navigator.

The GPS vehicle monitoring system consists of three parts, namely the vehicle host, server and client. The on-board host mainly determines the position of the moving target through the US Global Satellite Positioning System (GPS), and uploads the data through the mobile communication network and the global Internet, the server receives and stores the positioning data, and the client accesses the server through the global Internet to extract maps and vehicles Positioning information provides users with comprehensive services.

The working principle of the system is that the GPS receiver installed on the vehicle calculates the current position of the vehicle according to the received satellite information, and the communication controller extracts the required position, speed and time information from the signal output by the GPS receiver. , combined with vehicle identity and other information to form a data packet, and then sent to the monitoring center through the mobile operator's GPRS network. The server of the monitoring center receives the data sent by the vehicle-mounted machine, and extracts the positioning information from it, and displays it on the electronic map of the monitoring center according to the vehicle number and group number of each vehicle. At the same time, the system administrator in the control center can inquire about the running status of each vehicle, and dispatch vehicles reasonably according to the traffic flow.

From the perspective of the industry chain, the upstream of the GPS navigator is hardware and software; the hardware includes chips, antennas, processors, memory, screens, buttons, speakers and other components. Downstream is mainly the automotive industry.