Internet of vehicles and things-based vehicle positioning system

Abstract

The invention relates to an Internet of vehicles and things-based vehicle positioning system. The system is characterized in that the system includes a vehicle and a plurality of street lamps arranged at roadsides; each street lamp is provided with a memory which stores street lamp geographic locations, a signal modulator, a first spreading code generator, a spreading modulator, a first photoelectric signal converter and an LED light source; a plurality of square LED emitting light lattices which are independently numbered are uniformly arranged in the LED light source; black light LEDs, blue light LEDs, green light LEDs and red light LEDs are arranged in the LED emitting light lattices; the vehicle is provided with a central processor, a speed detector, a GPS positioning module, an optical signal intensity detector, an optical signal receiver, a second photoelectric signal converter, a spreading demodulator, a second spreading code generator, a signal demodulator, a camera and a display screen; the street lamp geographic locations are converted into optical signals and multidimensional color codes from electric signals; and the central processor completes the final positioning of the vehicle according to GPS positioning signals, vehicle speed and the optical signal intensity of each street lamp.

Description

technical field [0001] The invention relates to the field of wireless Internet of Vehicles, in particular to a vehicle positioning system based on wireless Internet of Vehicles. Background technique [0002] With the continuous development of communication technology and sensor technology, the communication between things is gradually reflected, and the "Internet of Things" has become a new trend of people's research. With the increasing maturity of the Internet of Things technology, the Internet of Vehicles and the Internet of Things has gradually become popular in modern transportation. [0003] In the Internet of Vehicles, vehicle positioning is one of the key technologies for the development of the Internet of Vehicles. At present, in vehicle positioning, methods and systems based on GPS positioning, Beidou positioning or base station positioning are the current mainstream positioning technologies. However, due to the occlusion of buildings or trees, the GPS positionin...

AI Technical Summary

Problems solved by technology

However, due to the occlusion of buildings or trees, the GPS positioning signal or Beidou positioning signal is weak, and cannot give full play to its positioning advantages, especially in urban environments with dense buildings.

At the same time, base station positioning depends on the influence of the density of base station layout. Once the base station layout is sparse, the positioning effect will be extremely poor.

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