Research On Vehicular Self-Organizing Network Based On Lidar Communication Integrated System

Faced with the constant attention of the public in today's world on automobile travel efficiency and driving safety awareness,the frontiers of automobile development science and industrial exploration are constantly ushering in new development opportunities and difficult chal enges.However,in recent years,the economic losses and loss of talents caused by traffic accidents and traffic congestion have been immeasurable,and even brought more serious blows to environmental pollution and energy waste.Therefore,effectively solving the efficiency and safety problems of mass travel is always the key and difficult point that runs through the field of automotive science and industrial research exploring.The topic of this thesis is aimed at the research of integrated networking technology of vehicle lidar and communication,starting from the integrated analysis and modeling of lidar ranging and communication,and then modeling and simulation of vehicle application scenarios and vehicle motion models,and then applying The self-organizing network carried out simulation test analysis and optimization of the fairness index and routing index of the lidar network performance.Afterwards,the performance of the routing parameter index in different scenarios was further improved by the introduct io n of loading ant colony algorithm and grouping technology.Finally,the factors of safety and interference in radar ad hoc networks have been researched and suppressed to some extent.Then,the main research work contents of this article are as follows:1)First of all,based on the current work research,the integration analysis technology and simulation test of lidar ranging and communication technology are carried out.Finally,the working wavelength of the network system in this thesis is selected as 1550 nm.At the same time,integrated indicators and principles are proposed for analysis and comparison of simulation experiments.2)In order to fit the actual application,a total of three kinds of actual vehicle application scenarios were designed and modeled,such as urban road intersectio ns,freeway straight roads and corners.In addition,in order to simulate the actual state of the communication vehicle,macro-and micro-modeling processes are also carried out on the vehicle motion.3)The three algorithms of HDFB,NDCF and BEB are used to simulate and compare the fairness index of the channel access of the lidar ad hoc network.Moreover,the use of geographic location,topology and improved PVAR routing were used to compare the routing performance of lidar ad hoc networks with simulation experiments and algorit hm optimization studies.4)Under the simulation test,this thesis also puts forward the optimization scheme of the routing performance of the lidar ad hoc network by loading the ant colony algorit hm and the grouping technology mechanism respectively to correspond to differe nt application scenarios.Simultaneously,the simulation test is proved and analyzed and optimized.5)In the research of vehicle-mounted lidar and communication integrated networking technology,interference problems and safety issues have always been lingering,and the impact cannot be completely eliminated.In this thesis,a simple extended analysis and in-depth study on the route interference and route safety of the lidar ad hoc network are carried out.The influence of route interference is reduced to a certain extent,and the route safety performance is improved.