A method and system for urban road laser communication

Abstract

The present invention provides a method and system for laser communication on urban roads. The method includes: installing a laser communication road surface unit at a height similar to that of a street lamp in a specific area on the edge of an urban road, and at the same time installing a laser communication vehicle-mounted unit at the top of the vehicle; In the area where there is a laser communication road surface unit, information exchange occurs between the laser communication road surface unit and the laser communication vehicle-mounted unit. The system includes: a laser communication road surface unit set on the side of the city road and a laser communication vehicle-mounted unit set on the top of the vehicle that can exchange information with the laser communication road surface unit. When the vehicle travels near the laser communication road surface unit, the laser communication road surface unit in the present invention can aim at and capture the position of the laser communication vehicle-mounted unit, and establish a stable communication link with it, and information interaction occurs, so that the laser communication road surface unit can obtain the driving vehicle Real-time position and speed information facilitates the laser communication vehicle unit to obtain road information.

Description

technical field [0001] The invention belongs to the technical field of optical communication, relates to a laser communication method, and in particular relates to a laser communication transmission method and system suitable for medium and short distances in urban roads. Background technique [0002] As a new type of communication technology, optical wireless communication has the advantages of optical fiber communication and mobile communication at the same time. It can realize broadband transmission, flexible networking, no need for frequency application, anti-electromagnetic interference, and good confidentiality. research has received extensive attention. In addition, the light source for short- and medium-distance optical wireless communication also has the advantages of low power consumption, long life, low cost, and the like. [0003] In an optical wireless communication system, the transmitting end uses an LED as the light source, and the receiving end uses a photo...

AI Technical Summary

Problems solved by technology

However, the current laser communication capture, targeting and tracking methods are not miniaturized and portable, and cannot be widely used in ubiquitous network application scenarios such as the Internet of Vehicles

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