Vehicle-mounted millimeter-wave detection and communication integrated sensor for intelligent transportation system application

Abstract

The invention discloses a vehicle-mounted millimeter wave detection and communication integrated sensor applied to a smart traffic system. The sensor comprises a millimeter wave source, a power amplifier, a millimeter wave emission antenna, a millimeter wave receiving antenna, a low-noise amplifier, a frequency mixer, a switch, a detection signal processing circuit, a communication signal processing circuit, a modulator, a base band and a central control mechanism. According to the invention, the sensor has detection and communication functions, shares such devices as the millimeter wave source, the power amplifier, the millimeter wave emission antenna, the millimeter wave receiving antenna, the low-nose amplifier, the frequency mixer and the like, is simple and compact in structure and low in cost, and is applied to vehicle crash-proof detection and wireless interconnection between vehicles and between vehicles and roads in a modern smart traffic system. The product consistency is high, and the sensor is more suitable for large-scale production.

Description

technical field [0001] The invention belongs to the field of intelligent transportation information collection, and in particular relates to a vehicle-mounted millimeter wave detection and communication integrated sensor applied in an intelligent transportation system. Background technique [0002] Since the 1980s, with the development of social economy, countries all over the world are generally facing the problem of traffic congestion and congestion. Developed countries such as Japan, the United States and Western Europe have invested a lot of money and manpower to start large-scale road traffic. A research experiment in transportation intelligence. Initially, the research on intelligent road functions and vehicle intelligence was carried out, which was called "Intelligent Vehicle Highway Systems (IVHS)". With the continuous deepening of research, the system functions are extended to the whole process of road transportation and its related service departments, and it has ...

AI Technical Summary

Problems solved by technology

[0015] Vehicle-mounted millimeter-wave radar sensors are generally based on a single radar detection function and are applied to vehicle collision avoidance, while millimeter-wave sensors capable of both detection and communication functions have not yet appeared.

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