CN110266744A - Location-based edge cloud resource dispatching method and system - Google Patents
Location-based edge cloud resource dispatching method and system Download PDFInfo
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Abstract
The invention belongs to network technique fields, are related to location-based edge cloud resource dispatching method and location-based edge cloud resource scheduling system.The method comprising the steps of: the Resources list is established in the service that the position of fringe node and the fringe node can provide；And the carry out following step of persistent loop: the cloud service of acquisition premises equipment requests and the terminal device present position in real time；In real time according to the position and requested cloud service of described the Resources list and the terminal device, the fringe node serve it is dispatched for the terminal device nearby；Wherein, the fringe node includes at least the edge termination equipment with computing capability.Related cloud service is dynamically disposed according to the change in location of subscriber terminal equipment or internet-of-things terminal, to realize the marginalisation of cloud service, solves the demand that the cloud service of moveable internet-of-things terminal or user terminal provides nearby, service delay is smaller, to more preferably embody the suitability of cloud platform.
Description
Technical Field
The invention belongs to the technical field of networks, and particularly relates to a position-based edge cloud resource scheduling method and a position-based edge cloud resource scheduling system.
Background
In the current cloud computing architecture, a centralized deployment cloud platform is generally adopted, and an application program is deployed on the cloud platform, and is connected to a centralized cloud data center through network transmission no matter an internet of things terminal or a user terminal. In a cloud platform, different technologies are adopted to deploy specific applications, as shown in fig. 1, a service a is deployed on a physical server, a service B and a service C are deployed on a virtual machine, and a service D and a service E are deployed in the form of a container. Many data streams are generated by internet of things terminals or user terminals near the user, but real-time decisions cannot be made by centralized cloud computing platform services (such as service a or service B, etc.) processing and analysis that are "far away".
Aiming at the characteristics of high concurrency, low delay, instantaneity and the like of the application of the internet of things, the mode that the service of the cloud platform is operated closer to the terminal is generally adopted in the industry at present. As shown in fig. 2, the centralized cloud platform deploys centralized large-scale operations and services with low network latency requirements, the cloud platform is deployed in the data center near the terminal, and the centralized cloud platform is also responsible for managing the cloud platforms near the user while providing cloud services, such as a cloud platform a and a cloud platform B. And the cloud platform close to the terminal device deploys relevant cloud services, for example, the internet of things terminal can access the service B and the service D in the cloud platform A, and the user terminal can access the service C and the service E. This method of putting the relevant service close to the terminal improves the quality of service to some extent.
However, the cloud service is deployed by using a data center close to a user, and the requirement of the application of the internet of things cannot be fundamentally solved. With the improvement of the computing capability of the terminal equipment and the continuous development of the container-based virtualization technology, how to construct a cloud computing architecture oriented to the application of the internet of things becomes a key concern.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a location-based edge cloud resource scheduling method and a location-based edge cloud resource scheduling system aiming at the defects in the prior art, construct a cloud computing architecture facing the application of the internet of things, solve the requirement of providing a cloud service of a mobile terminal or a user terminal of the internet of things nearby, and have smaller service delay, thereby better embodying the adaptability of a cloud platform.
The technical scheme adopted for solving the technical problem of the invention is that the edge cloud resource scheduling method based on the position comprises the following steps:
establishing a resource list of the position of an edge node and the service which can be provided by the edge node;
and, continuously cycling through the following steps:
acquiring cloud service requested by terminal equipment and the position of the terminal equipment in real time;
scheduling the edge node which provides service for the terminal equipment according to the resource list, the position of the terminal equipment and the requested cloud service in real time;
wherein the edge node comprises at least an edge terminal device with computing capabilities.
Optionally, the scheduling the edge node that provides the cloud service for the terminal device nearby includes:
judging whether the edge node directly connected with the terminal equipment through an access gateway has the cloud service requested by the terminal equipment;
if so, scheduling the edge node directly connected with the terminal equipment through an access gateway to provide cloud service for the terminal equipment;
and if not, scheduling the edge node closest to the terminal equipment as the edge node providing cloud service for the terminal equipment.
Optionally, the scheduling the edge node closest to the terminal device to provide cloud service for the terminal device includes:
the edge node forwards an application program access cloud service request of the terminal equipment to a cloud platform;
the cloud platform receives the request sent by the edge node, and sends the cloud service corresponding to the application program of the terminal equipment to the edge node according to the positions of the terminal equipment and the edge node;
the cloud platform issues a message for deploying the cloud service;
after receiving the cloud service deployment request, the edge node instantiates a service;
and the user accesses the cloud service nearby through the terminal equipment.
Optionally, the step of issuing the cloud service corresponding to the application program of the terminal device to the edge node includes:
if the edge node forwards the service request after receiving the user request, the service request is directly sent to the edge node;
and if the terminal equipment is sent to a cloud platform through the network, the cloud platform determines to send the edge node closest to the terminal equipment according to the position of the terminal equipment.
Optionally, after receiving the cloud service deployment request, the edge node sends a message of instantiating the cloud service to a computing engine for implementing virtualization of the computing node, and after receiving the message, the computing engine instantiates the service; wherein the process of instantiating the service comprises:
if the mirror image of the service is at the local edge node, directly instantiating the cloud service;
and if the mirror image of the service is not in the local edge node, sending an image acquisition message to the cloud platform, and instantiating the cloud service so as to deploy the cloud service accessed by the user to the edge node.
Optionally, the edge terminal device includes at least one of a home gateway and an enterprise gateway;
the terminal equipment comprises at least one of terminal equipment of the Internet of things and terminal equipment accessed by a user.
A position-based edge cloud resource scheduling system comprises a cloud platform and edge nodes, wherein the cloud platform is provided with a resource management system, the edge nodes at least comprise edge terminal equipment with computing capacity,
the resource management system is used for establishing a resource list for the positions of the edge nodes and services which can be provided by the edge nodes, scheduling the edge nodes for providing the services for the edge nodes according to the positions of the terminal equipment and the requested cloud services nearby, and providing a centralized resource pool and related cloud services for the edge nodes;
the edge terminal device further comprises a computing engine and a comprehensive access gateway, wherein:
the computing engine is used for realizing virtualization of computing nodes;
and the integrated access gateway interacts with the resource management system and is used for interacting with the access and application programs in the terminal equipment so as to realize the setting of the scheduling configuration information.
Optionally, the resource list records an IT resource configuration of the edge terminal device, where the IT resource includes at least one of a computing resource, a storage resource, and a network resource.
Optionally, the edge terminal device includes at least one of a home gateway and an enterprise gateway, and the computing engine is a container engine.
Optionally, the terminal device includes at least one of an internet of things terminal device and a terminal device accessed by a user.
The invention has the beneficial effects that:
according to the position-based edge cloud resource scheduling method and system, on the basis of original resource scheduling, the cloud service follow-up of a fusion scene is solved by introducing position information, and relevant cloud services are dynamically deployed according to the position change of user terminal equipment or an Internet of things terminal, so that the marginalization of the cloud service is realized, the requirement that the cloud service of a movable Internet of things terminal or a user terminal is provided nearby is met, the service delay is smaller, and the adaptability of a cloud platform is better reflected.
Drawings
Fig. 1 and 2 are schematic diagrams of current cloud service invocation;
FIG. 3 is a block diagram of a location-based edge cloud resource scheduling system according to an embodiment of the present invention;
FIG. 4 is a flowchart illustrating a location-based edge cloud resource scheduling method according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a call flow for implementing cloud services based on location according to an embodiment of the present invention;
in the drawings, wherein:
1-a cloud platform; 11-a resource management system;
2-edge nodes; 21-a calculation engine; 22-integrated access gateway.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the location-based edge cloud resource scheduling method and the location-based edge cloud resource scheduling system of the present invention are further described in detail with reference to the accompanying drawings and the detailed description.
The internet of things, which is the most important service scenario of 5G, is considered as the next service growth point by global telecom operators. The application of the internet of things to the aspects of real-time performance of data processing, low delay of network quality, high concurrency of information transmission and the like provides great challenges for the architecture of the whole IT system. These new requirements of how to support internet of things applications by using technologies such as cloud computing, edge computing, fog computing, etc. are the focus of research in the industry at present.
Traditional centralized cloud platform architectures are primarily oriented towards personal user-based internet applications. With the change of service requirements (such as high-definition videos), the centralized cloud platform architecture also restricts the experience of users. Internet of things applications are also demanding in this respect. Based on the problems, the sinking of the cloud service is realized by utilizing the edge data center at present, so that the cloud service quality is improved to a certain extent, but the problems cannot be solved fundamentally. Because the current method is the same as the traditional centralized cloud platform in nature, the internet of things terminal and the user terminal still need to be connected to a remote data center, the above problems still exist, the only change is that the service is sunk to the edge of the data center, and the cross-domain network transmission is still needed for the terminal to access the service.
Meanwhile, in the traditional cloud service architecture, more than all the cloud service concerns the state (such as position information) of the terminal device, the cloud platform often considers the use condition of the whole resource pool for scheduling the resources, and the resources are scheduled according to the actual occupied resources of the IT resources such as a CPU, a memory, a network, a storage and the like. On the basis of the internet of things oriented application, how to deploy the cloud service on the computing unit closest to the user needs to be considered. Therefore, the current cloud computing architecture cannot meet the resource scheduling requirement for the application of the internet of things.
The invention provides a position-based edge cloud resource scheduling method and a position-based edge cloud resource scheduling system aiming at the problems of real-time performance, low network quality delay and high information transmission concurrency of the application of the Internet of things in data processing, the computing power of edge terminal equipment is fully utilized, the computing power of the edge terminal equipment is managed in a cloud platform, relevant services are rapidly scheduled according to the position of a user requesting cloud services, the marginalized services of the Internet of things are realized, and a cloud platform framework facing the application of the Internet of things is constructed, so that the requirements of instantaneity of the services of the application of the Internet of things and low network delay are met.
According to the position-based edge cloud resource scheduling method and the position-based edge cloud resource scheduling system, on the basis of the existing cloud platform architecture, edge deployment of cloud resources is achieved by managing the Internet of things terminal equipment with computing capability. For the sake of clarity, the system framework is introduced as a precursor description and the method steps are described in further detail below.
The location-based edge cloud resource scheduling system in this embodiment includes a cloud platform 1 and an edge node 2. The specific architecture is shown in fig. 3, and the specific functions of each part are explained as follows:
the cloud platform 1 is additionally provided with a resource management system 11 which is responsible for managing the positions of the edge nodes 2 and IT resources on the basis of a general centralized deployment cloud platform, establishing a resource list of the positions of the edge nodes 2 and services which can be provided by the edge nodes 2, and simultaneously scheduling related cloud services to the nearest edge node 2 according to the specific positions of terminal equipment of the Internet of things or terminal equipment accessed by a user; and, while managing the edge node 2, also provide centralized resource pool and relevant cloud service to the outside. Specifically, a maintenance list is arranged on the cloud platform side, and the maintenance list comprises resources of all nodes managed by the cloud platform; meanwhile, each edge node also has a resource list, and the resource list records the service information of the current edge node. For example, the resource list records an IT resource configuration of the edge terminal device, and the IT resource includes at least one of a computing resource, a storage resource, and a network resource.
The edge node 2 is different from the existing edge data center, where the edge node 2 at least includes an edge terminal device with computing capability, and the edge terminal device includes at least one of a home gateway and an enterprise gateway. The edge termination device also includes a compute engine 21 and an integrated access gateway 22. Wherein,
the computing engine 21 is configured to implement virtualization of a computing node, in this embodiment, the computing engine 21 is a container type engine, and all cloud services deployed at an edge are carried in a container type; here, the computing node is an edge node or an edge terminal device;
the integrated access gateway 22 is responsible for accessing an application program (i.e., a terminal device APP) at a lower end, interacts with the application program to implement setting of relevant configuration information, interacts with the resource management system 11 of the cloud platform 1, and is an interface of the cloud platform 1 for managing the edge node 2.
As shown in fig. 4, the present embodiment further provides a location-based edge cloud resource scheduling method, including the steps of:
step S1): and establishing a resource list according to the position of the edge node and the service which can be provided by the edge node.
The resource list records IT resource configuration of the edge terminal device, and the IT resource includes at least one of a computing resource, a storage resource, and a network resource.
And, continuously cycling through the following steps S2) -S3):
step S2): and acquiring the cloud service requested by the terminal equipment and the position of the terminal equipment in real time.
The terminal equipment performs network access and cloud service access through the integrated access gateway, and after a user accesses the integrated access gateway through the terminal equipment, the terminal equipment can be judged through which access gateway the terminal equipment accesses through the related information of the integrated access gateway, so that the terminal equipment is judged to be in the range of which integrated access gateway at present. The integrated access gateway judges whether the service accessed by the user is in a local service list or not, and if the service accessed by the user is in the local service list, the integrated access gateway directly provides the service; if not, the request is sent to the cloud platform.
In a network access mode, the terminal equipment can be connected with the comprehensive access gateway through any one mode of wifi, zigbee, BLE, REST and the like, and then cloud service access is carried out.
Step S3): and scheduling the edge nodes for providing services for the terminal equipment nearby according to the resource list, the position of the terminal equipment and the requested cloud service in real time.
In this step, the edge node that uses the location of the user terminal to determine and schedule and provides cloud service for the terminal device comprises:
judging whether the edge node directly connected with the terminal equipment through the access gateway has the cloud service requested by the terminal equipment;
if so, scheduling the edge node directly connected with the terminal equipment through the access gateway to provide cloud service for the terminal equipment;
if not, scheduling the edge node closest to the terminal equipment to provide cloud service for the terminal equipment
When the terminal equipment of the Internet of things or the terminal equipment accessed by the user accesses the cloud service, the comprehensive access gateway of the edge node is used as the access function of the network, the request of the user can be obtained, after the comprehensive access gateway receives the information, the comprehensive access gateway firstly searches a local resource list, and if the comprehensive access gateway finds that the service accessed this time does not exist in the resource list of the comprehensive access gateway, the request is sent to the cloud platform. After receiving a request sent by the integrated access gateway, the cloud platform can judge through which access gateway the user has accessed, and issues resources such as mirror images and the like required by the service to be accessed to the integrated access gateway.
That is, when a terminal device of a user accesses or accesses a cloud service through a certain access gateway, the access gateway determines whether the service accessed by the terminal device is local according to a resource list stored locally, if so, the service is directly provided, and if not, a request is sent to a cloud platform.
The edge terminal device is an edge node in this embodiment, examples of the current edge node include a home gateway, an enterprise gateway, and the like, and these gateway devices all have a certain computation and storage capability at present, where the computation capability refers to the computation, network, and storage capability of the edge node.
As a general example, when a user uses a mobile terminal to use a cloud service and moves from an edge node a to an edge node B, a specific scheduling flow of the location-based edge cloud resource scheduling method for implementing the cloud service is shown in fig. 5:
and ①, accessing the cloud service S1 by the user through the terminal equipment, wherein the terminal equipment is accessed to the comprehensive access gateway of the edge node A through a certain mode (wifi, zigbee, BLE, REST and the like).
And ②, the integrated access gateway judges whether the cloud service S1 is at the edge node A, if so, the service is directly provided, and if not, the integrated access gateway transfers to the step ③, namely, the information is sent to the cloud platform resource management system.
And ③, the integrated access gateway forwards the user access request to the cloud platform resource management system.
And ④, the cloud platform receives the request sent by the edge node A and sends the cloud service corresponding to the user according to the positions of the terminal equipment and the edge node A, wherein one possibility is that the edge node A forwards the service request after receiving the user request, and then the service request is directly sent to the edge node A, the other possibility is that the terminal equipment directly sends the service request to the cloud platform through the 4G and 5G networks, and at the moment, the cloud platform determines to send the service request to the edge node closest to the terminal equipment according to the position of the terminal equipment.
And ⑤, the cloud platform resource management system issues a message for deploying the cloud service.
Step ⑥ -step ⑧, after receiving the request of deploying the cloud service, the edge node A sends the information of the instantiated cloud service to the computing engine, and after receiving the information, the computing engine instantiates the service.
If the service image is local, it is directly instantiated, step ⑥;
if the service image is not local, sending an image acquisition message to the cloud platform, and finally deploying the cloud service accessed by the user to the edge node A, namely step ⑦ and step ⑧.
And step ⑨, the user accesses the cloud service nearby through the terminal equipment, so that certain applications with high requirements on delay or safety are deployed to the place nearest to the terminal equipment of the user, and the experience of the user for accessing the applications is enhanced, such as VR live broadcasting, AI and the like.
Normally, the user is not always fixed at a position or area, and therefore, when the position or area where the user is located changes, the following steps are continued:
and ⑩, accessing to the edge node B when the position of the terminal equipment changes.
Step (ii) of-step (ii)The method is that whether the cloud service is at the edge node B or not is judged, if so, the service is directly provided, and if not, the cloud service configuration is realized by following steps ③ - ⑨.
Step (ii) ofAnd when the terminal equipment is accessed to the edge node B, the cloud platform generates an instance destroy message to the edge node A, and the cloud service is released.
The location-based edge cloud resource scheduling method and system provided by this embodiment are particularly suitable for some services having higher requirements for response, for example, a visual service using a wearable camera, where the response time needs to be between 25ms and 50ms, and the cloud computing shown in fig. 1 or fig. 2 may cause a serious delay; for example, the real-time performance of detection, control and execution of an industrial system is high, the real-time performance of part of scenes is required to be within 10ms, and if all data analysis and control logics are realized in the cloud, the service requirements are difficult to meet; in addition, multimedia applications that generate huge data streams, such as video or cloud platform-based network games, rely on cloud computing to cause problems similar to long waiting time for players, and cannot meet the needs of users. According to the simulation evaluation, by adopting the position-based edge cloud resource scheduling mode in the embodiment, as the service is close to the user side, the service delay is smaller, and the cloud service can be better adapted and satisfied, so that better cloud service is provided.
The embodiment provides a cloud platform architecture of 'cloud + edge' for application requirements of the internet of things, which provides edge cloud services for users by using computing power of edge terminal equipment, that is, the computing power of the edge terminal equipment is abstracted into computing resources and is managed in a unified manner in cooperation with a centralized cloud platform, so that the problem that the cloud services are accessed close to the terminal equipment is solved.
According to the position-based edge cloud resource scheduling method and system, on the basis of original resource scheduling, the cloud service follow-up of a fusion scene is solved by introducing position information, and relevant cloud services are dynamically deployed according to the position change of user terminal equipment or an Internet of things terminal, so that the marginalization of the cloud service is realized, the requirement that the cloud service of a movable Internet of things terminal or a user terminal is provided nearby is met, the service delay is smaller, and the adaptability of a cloud platform is better reflected.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. A method for scheduling edge cloud resources based on positions is characterized by comprising the following steps:
establishing a resource list by using the position of an edge node and services which can be provided by the edge node;
and, continuously cycling through the following steps:
acquiring cloud service requested by terminal equipment and the position of the terminal equipment in real time;
scheduling the edge node which provides service for the terminal equipment nearby for the terminal equipment according to the resource list, the position of the terminal equipment and the requested cloud service in real time;
wherein the edge node comprises at least an edge terminal device with computing capabilities.
2. The method according to claim 1, wherein scheduling the edge node for which the terminal device provides cloud services in the near future comprises:
judging whether the edge node directly connected with the terminal equipment through an access gateway has the cloud service requested by the terminal equipment;
if so, scheduling the edge node directly connected with the terminal equipment through an access gateway to provide cloud service for the terminal equipment;
and if not, scheduling the edge node closest to the terminal equipment as the edge node providing cloud service for the terminal equipment.
3. The method according to claim 1, wherein the edge node closest to the terminal device is scheduled to provide cloud service for the terminal device, and the method comprises:
the edge node forwards an application program access cloud service request of the terminal equipment to a cloud platform;
the cloud platform receives the request sent by the edge node, and sends the cloud service corresponding to the application program of the terminal equipment to the edge node according to the positions of the terminal equipment and the edge node;
the cloud platform issues a message for deploying the cloud service;
after receiving the cloud service deployment request, the edge node instantiates a service;
and the user accesses the cloud service nearby through the terminal equipment.
4. The method according to claim 3, wherein the step of sending the cloud service corresponding to the application program of the terminal device to the edge node comprises:
if the edge node forwards the service request after receiving the user request, the service request is directly sent to the edge node;
and if the terminal equipment is sent to a cloud platform through the network, the cloud platform determines to send the edge node closest to the terminal equipment according to the position of the terminal equipment.
5. The method according to claim 3, wherein the edge node sends a message of instantiating the cloud service to a compute engine for implementing virtualization of the compute node after receiving the request for deploying the cloud service, and the compute engine instantiates the service after receiving the message; wherein the process of instantiating a service comprises:
if the mirror image of the service is at the local edge node, directly instantiating the cloud service;
and if the mirror image of the service is not in the local edge node, sending an image acquisition message to the cloud platform, and instantiating the cloud service so as to deploy the cloud service accessed by the user to the edge node.
6. The method for edge cloud resource scheduling based on location according to any of claims 1-5, wherein the edge terminal device comprises at least one of a home gateway and an enterprise gateway;
the terminal equipment comprises at least one of terminal equipment of the Internet of things and terminal equipment accessed by a user.
7. A position-based edge cloud resource scheduling system comprises a cloud platform and edge nodes, and is characterized in that the cloud platform is provided with a resource management system, the edge nodes at least comprise edge terminal equipment with computing capability,
the resource management system is used for establishing a resource list for the positions of the edge nodes and services which can be provided by the edge nodes, scheduling the edge nodes for providing services for the edge nodes according to the positions of the terminal equipment and the requested cloud services nearby, and providing a centralized resource pool and related cloud services for the outside;
the edge terminal device further comprises a computing engine and a comprehensive access gateway, wherein:
the computing engine is used for realizing virtualization of computing nodes;
and the integrated access gateway interacts with the resource management system and is used for interacting with the access and application programs in the terminal equipment so as to realize the setting of the scheduling configuration information.
8. The location-based edge cloud resource scheduling system of claim 7, wherein an IT resource configuration of the edge terminal device is recorded in the resource list, and the IT resource includes at least one of a computing resource, a storage resource, and a network resource.
9. The location-based edge cloud resource scheduling system of any of claims 7-8 wherein the edge end device comprises at least one of a home gateway and an enterprise gateway, and the computing engine is a container engine.
10. The location-based edge cloud resource scheduling system of any of claims 7-8, wherein the terminal device comprises at least one of an internet of things terminal device and a user-accessed terminal device.
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