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A computer test system and test method for vehicle-mounted heterogeneous network

A heterogeneous network and test system technology, applied in the direction of transmission system, digital transmission system, data exchange network, etc., can solve the problems of long development process, high cost, poor compatibility, etc., to reduce switching delay and overhead, and reduce switching the effect of time

Active Publication Date: 2020-10-09
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The vehicle-mounted heterogeneous network measurement equipment needs targeted hardware and software development for handover algorithms, resulting in a long development process and high costs; the developed equipment only supports specific networks and specific algorithms, and has poor compatibility, making it difficult to meet different handovers. Algorithm testing requirements; these problems lead to difficulties in vehicle heterogeneous network testing, seriously affecting the development and application of vehicle heterogeneous network technology

Method used

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  • A computer test system and test method for vehicle-mounted heterogeneous network
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  • A computer test system and test method for vehicle-mounted heterogeneous network

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specific Embodiment

[0072] Specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent transformations done on the technical solutions of the present application all fall within the protection scope of the present invention.

Embodiment

[0073] Embodiment: Multi-factor decision-making vehicle heterogeneous network handover test integrating DSRC, LTE and Wi-Fi

[0074] The test object is the performance of the multi-factor decision-making vehicle heterogeneous network handover algorithm, including the candidate network, the change of network performance parameters of DSRC, LTE and Wi-Fi, and the change of virtual terminal handover behavior; in the test system, each heterogeneous network terminal is Broadcast beacon information to the surrounding environment at a frequency of 10Hz; the beacon includes virtual terminal ID, information sending time, information sequence number and placeholder, and the length of a single packet is 190 bytes; the system simulates a heterogeneous network environment under 20 terminals broadcasting messages, each The test platform equipped with a car simulates 10 terminals;

[0075] Test prefabricated conditions: functional modules in the system are powered on and run normally, two ca...

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Abstract

The invention discloses a computer testing system and method for a vehicle-mounted heterogeneous network. A mode of connecting multiple Ethernet cards through a computer is adopted, simultaneous access of the computer to various Internet of Vehicles systems is realized; simulation of a multi-Internet of Vehicles terminal scene is realized by using a multi-thread technology; under the condition ofa test platform, a complex Internet of Vehicles communication scene is simulated by using a small number of terminals, the system can be compatible with various wireless communication technologies suitable for Internet of Vehicles, and test and verification of different types, different requirements and different purposes of vehicle-in-heterogeneous network selection methods are realized; a testedalgorithm is debugged by adopting a general integrated development environment; switching process support and data interface support can be provided for vehicle-mounted heterogeneous network switching methods of different types and different processes, network performance information and network state data are collected during testing, and the influence of a vehicle-mounted heterogeneous networkswitching algorithm on network performance and the influence of an application effect are accurately evaluated.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a computer test system and a test method for vehicle-mounted heterogeneous networks. Background technique [0002] The Internet of Vehicles technology realizes the collaborative sensing function in the traffic system through information sharing between vehicles and roadside equipment, so as to ensure traffic safety, improve traffic efficiency, and achieve the purpose of energy saving and emission reduction. The Internet of Vehicles system needs to adapt to complex urban and rural road environments, different vehicle densities and different application requirements. This makes it difficult for a single wireless access network to better realize the functions of the vehicle networking system. In response to this problem, a large number of studies have proposed the use of vehicle-mounted heterogeneous networks to realize vehicle networking communication. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26H04W24/06
CPCH04L43/50H04W24/06
Inventor 赵祥模张心睿李骁驰王润民徐志刚刘丁贝邓晓峰王文威
Owner CHANGAN UNIV
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