Field test method and test system for vehicle-to-vehicle communication network performance

Abstract

The invention provides an inter-vehicle communication network performance external field test method and test system. The test method includes the following steps: deploying N communication nodes in atest field, determining a test area, determining a transmission area, an association area and an interference area of each communication node, installing a vehicle-mounted unit to a vehicle that participates in the test, and enabling a central control unit to set the communication nodes as useful signal transmitting nodes or interference transmitting nodes according to test requirements; performing statistical analysis on data of vehicle communication, obtaining packet loss rates and delays in different scenes according to the statistical data, and then judging the reliability and success rate of communication under different situations and an effective range of various indicators under the communication success criteria according to the established criteria for the packet loss rate and delay. According to the scheme of the invention, the low cost, flexibility and controllability of test scenes can be achieved, and by monitoring the packet loss rate and delay of a receiving end, a stable working range under different vehicle density conditions and different interference conditions can be obtained, and the success rate of communication can also be improved.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to an field test method and a test system for the performance of a vehicle-to-vehicle communication network. Background technique [0002] IEEE 802.11P (also known as WAVE, Wireless Access in the Vehicular Environment), is a communication protocol extended by the IEEE 802.11 standard, which is mainly used for vehicle electronic wireless communication. After more than ten years of research and development, it has finally realized from draft to standardization , Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I) devices are gradually being sold on the market. At present, many vehicles have reserved LTE-V (Long Term Evolution-Vehicle) or dedicated short-range communication technology (Dedicated Short Range Communications, DSRC) and other radio frequency chips that support V2V communication frequencies. [0003] Although many research results have addressed important iss...

AI Technical Summary

Problems solved by technology

However, due to high-density vehicle testing has high requirements on the test site (multiple lanes, multiple testers), the efficiency of the test will become very low, and the cost of the test will increase, which is not conducive to the timely feedback of safety application development.

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