Method of Service Ad Hoc Network Based on Pervasive Computing
A ubiquitous computing and ad hoc network technology, applied in the field of ubiquitous computing systems, can solve problems such as increasing network load, failing to find completely matching services, increasing time and space costs, and reducing the number of times and bandwidth usage. , the effect of improving reusability and system performance
Active Publication Date: 2016-03-16
JIANGSU R & D CENTER FOR INTERNET OF THINGS
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Problems solved by technology
[0002] At present, applications in the Internet of Things need to search and call the services they need at the beginning of operation. Each application must search for all services, which greatly increases the network load and increases the cost of time and space.
Especially when multiple services need to be invoked, it is only possible to search the services in the network one by one, and it may happen that no exact matching service can be found after traversing all the services
This traversal method has low search efficiency and puts a lot of pressure on the network
Method used
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[0026] The present invention will be further described below in conjunction with specific drawings and embodiments.
[0027] like figure 1 Shown:
[0028] The service management system based on pervasive computing includes five entities: service provider, service, service library, service management module and application program. The service library itself is also a service, its function is to store the information of registered services on this service library, and provide query function for external services. Aiming at the problem that new application programs must search all services again each time, the present invention designs a service management module, which is also a service, and each application program corresponds to a service management module. When the application program needs to call the service, it no longer needs to traverse all the services on the network. It only needs to send a query request to the service management module as an intermediary, and the s...
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The invention provides a pervasive computing-based service ad hoc networking method. The pervasive computing-based service ad hoc networking method comprises the following steps: S1, deploying service, wherein new service is required to be deployed at first when accessing to the internet for the first time so as to become usable service; S2, issuing the service, wherein the service issuance comprises a direct broadcast mode and an indirect broadcast mode; S3, discovering the service, i.e., transmitting a service lookup request to a corresponding service management module by an application program according to the demand of the application program, executing the request by the service management module corresponding to the application program to look up the service and returning a lookup result to the application program; S4, networking the service, i.e., binding required services according to a binding command transmitted by the service management module corresponding to the application program; S5, calling the service; S6, unbinding the service. According to the method, the service lookup frequency can be greatly reduced and the network bandwidth occupancy rate is reduced.
Description
technical field [0001] The invention relates to a pervasive computing system, in particular to a service ad hoc network method based on pervasive computing. Background technique [0002] At present, applications in the Internet of Things need to search and call the services they need at the beginning of operation. Each application must search for all services, which greatly increases the network load and increases the cost of time and space. Especially when multiple services need to be invoked, it is only possible to search the services in the network one by one, and there may be a situation where the exact matching service cannot be found after traversing all the services. This traversal method has low search efficiency and puts a lot of operating pressure on the network. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a service ad hoc network method based on pervasive computing, which c...
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IPC IPC(8): H04L29/08H04L12/24
Inventor 史册陈曙东
Owner JIANGSU R & D CENTER FOR INTERNET OF THINGS