Network And Computing Resource Scheduling Of Edge Computing With Vehicle-to-Road Collaborative In Open-Pit Mining Area

In recent years,with the development of computer technology,it has accelerated the development process of the direction of intelligence in various industries.Intelligent mining area is a mining area system based on the application of modern intelligent information technology,which realizes comprehensive information integration,active perception and analysis,and makes quick response processing.Among them,the mine car automatic driving system is an important part of it,and "vehicle-road cooperation" is very important for the driving safety of the automatic driving mine car,and edge computing equipment plays an extremely important role in the whole vehicle and road cooperation.At present,the research on vehicle-road collaborative edge computing in open-pit mines is mainly based on a three-layer architecture,namely "cloud-side-side".RSU transmits data to edge servers or into the cloud.However,in the mining area,the RSU is far away from the edge server,and it is difficult to satisfy the timely response to the time-sensitive requests of the mine truck.It is mainly reflected in the following three aspects:(1)The RSU is far away from the edge server,and due to the mining environment,the edge server cannot be directly deployed near the RSU,resulting in long network transmission distances,increased service delays,and difficulty in ensuring timely tasks for mine trucks.Response;(2)The lack of a system design for vehicle-road collaborative edge computing in open-pit mines,and failure to make full use of edge resources;(3)The current research on vehicle-road collaborative edge computing is mostly concentrated in the highway environment,and it is difficult to directly migrate related scheduling algorithms to Mine environment.In response to the above shortcomings,we starts from the mining environment and develops a prototype of the embedded edge gateway that can be deployed on the roadside of the mining area,and realizes the timely response to the tasks of the mine truck on the side closest to the mine truck;draws on the latest edge computing architecture and designs The vehicle-road collaborative edge service system in the open-pit mine area is used to make full use of the edge measurement resources;and the resource scheduling algorithm is designed to ensure timely response to the tasks of the mine truck.The main research contents of this paper are as follows:(1)According to the mining environment,this paper designs an edge computing service system based on vehicle-road collaboration in open-pit mining areas.The edge layer is divided into three layers,the edge management layer,the edge cloud layer,and the edge gateway layer.The edge management layer manages the network to form multiple logical subnets of edge servers and edge gateways,and uses the SDN controller to allocate network resources.At the same time,the edge management layer manages the computing resources of the edge cloud and the edge gateway through management components,and realizes the collaboration between the edge cloud and the edge gateway.Among them,because the edge gateway does not meet the requirements of computing resources and network resource schedulability at this stage,and the edge gateway needs to be located close to the RSU,an embedded edge gateway with computing virtualization and network virtualization has been developed.Together with the edge server,it builds an open-pit mine vehicle-road collaborative edge computing service system that can allocate resources on demand.(2)According to the task request from the minecart,perform corresponding modeling,analysis,calculation and scheduling of computing resources,network resources,execution time and scheduling algorithms.Among them,the edge manager analyzes the resource requirements of the task,uses the task execution time calculation model,constructs the resource scheduling target,and formalizes the constraint conditions in the scheduling process.Design a scheduling algorithm,establish a virtual machine VM in the corresponding edge node according to the scheduling result,and build a virtual subnet VTN in the tenant network as the physical network to realize the scheduling of computing resources and network resources.(3)Developed the prototype of the edge computing service system that realized the vehicle-road collaboration in the open-pit mining area.Using Openstack and Opendaylight fusion architecture,under the x86 kernel architecture,build an edge manager,and set up multiple edge servers to form an edge cloud.Based on the ARM Cortex A53 architecture OK1012 development board,through firmware compilation,kernel modification,and software deployment,the computing virtualization and network virtualization of the embedded edge gateway are realized.Embed a wireless network card on the edge gateway,configure related components,build a wireless Mesh network,and simulate the Internet of Vehicles constructed by RSU.Connect the edge gateway with the edge manager and the edge cloud to form a management network;connect the edge gateway with the edge cloud to form a tenant network.By deploying relevant components in each device,the basic functions of the vehicle-road collaborative edge service system in the open-pit mining area are realized.At the same time,for the designed scheduling algorithm,the effectiveness of the algorithm is verified through experiments,and task scheduling under a variety of different DAG structures is tested.Compared with other algorithms,under the same constraints,the total task execution time can be shortened.And deploy the algorithm in the edge manager.The task REST request is issued through the development board,and the edge manager allocates computing and network resources according to the global network status,and establishes virtual machines in the corresponding edge nodes according to the scheduling strategy,and establishes the virtual network VTN to serve the tasks of the minecart.Verify the feasibility of system deployment.