Implementation of interactive information auxiliary system based on ontology and location service

A technology for location services and auxiliary systems, which is applied in radio wave measurement systems, positioning, measurement devices, etc., and can solve problems such as not being widely used.

Inactive Publication Date: 2011-03-23
SHANGHAI OCEAN UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, the use of location-based services in other mobile terminals, such as handheld computers, is not widespread enough

Method used

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  • Implementation of interactive information auxiliary system based on ontology and location service
  • Implementation of interactive information auxiliary system based on ontology and location service
  • Implementation of interactive information auxiliary system based on ontology and location service

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with accompanying drawing and example:

[0022] (1) System architecture

[0023] figure 1 The process of data transmission in the interactive function of the present invention is shown: In the interactive information auxiliary system, the MVC framework is used to organize, and it is divided into three parts: the presentation layer, the business logic layer, and the data persistence layer. The server obtains the location information of the mobile terminal through the positioning algorithm, or the user sends service request information to the server; then interacts with the data persistence layer; returns the corresponding fish information from the fish ontology knowledge base according to the location information of the mobile terminal Data, or return the corresponding service information from the system management database for the user's service request. Finally, the information interaction process b...

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Abstract

The invention relates to an interactive information auxiliary system based on an ontology and location service. In the system, after a server end monitors a radio signal sent by a mobile terminal, the server end quickly determines the location of a user, and promptly transmits characteristic information related to the mobile user location to a front-end display system by interacting with a location fingerprint database and an ontology knowledge base, thus offering help to the user activities. On the other hand, the user also can use the mobile terminal to send a service request to a background system or ask the background system for help, and the system automatically calculates the user location and responds to the request of the user. To accurately obtain the location information of the user, the system of the invention adopts a Dempster-Shafer evidence theory-based positioning method and a Gaussian mixture model (GMM)-based location fingerprint clustering algorithm. the invention, the wireless received signal strength (RSS) and location fingerprint-based positioning technology is organically merged, the rich knowledge expression and organization technology of the ontology is combined and an interactive information auxiliary system is implemented. The system makes full use of the existing wireless network facility, is easy to arrange and convenient to use and can send related information to the user based on location and quickly receive the service request sent by the user to realize interaction. The system can be applied to the occasions such as marine fishery production, leisure fishing area, tourist attractions and large shopping malls to realize information interaction and emergency rescue. Meanwhile, the efficient positioning technology also solves the problems in terms of positioning accuracy and energy consumption of mobile equipment.

Description

technical field [0001] The invention relates to a wireless positioning technology based on received signal strength, construction of domain ontology and ontology knowledge base, and knowledge expression technology. Background technique [0002] Location-based service (LBS) refers to a service that can provide relevant information based on the current location of a mobile user. From a broader perspective, providing users with location-related information services is also called location-based services. LBS has broad application prospects in many fields in real life, such as: security and emergency services; social networks; intelligent transportation systems; location-based service charging; child and elderly monitoring; obtaining points of interest; healthcare, etc. [0003] At present, in the field of application, the development of location-based services is mainly promoted by operators and service providers of mobile communication networks. They hope to provide personali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/02
Inventor 黄冬梅张明华于庆梅何盛琪赵明裴军峰郑小罗徐健宁高静霞方钱张永伟
Owner SHANGHAI OCEAN UNIV
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