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Real-time data distribution system with distributed network architecture and working method thereof

A distributed network, real-time data technology, applied in the direction of digital transmission system, transmission system, data exchange network, etc., can solve problems such as not suitable for real-time requirements, lack of application-level QoS strategy, etc., and achieve the effect of optimizing the network

Inactive Publication Date: 2010-09-29
BEIJING UNIV OF POSTS & TELECOMM
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  • Claims
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Problems solved by technology

However, it also lacks application-level QoS policies, and is still not suitable for fields such as medical treatment, ship control, and telemetry systems that have high real-time requirements and handle emergency tasks.

Method used

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  • Real-time data distribution system with distributed network architecture and working method thereof
  • Real-time data distribution system with distributed network architecture and working method thereof
  • Real-time data distribution system with distributed network architecture and working method thereof

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Embodiment Construction

[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0036] see figure 2 , introduce the real-time data distributing system of the present invention with distributed network framework and the structural composition of main equipment therein, this system adopts the communication mechanism of publishing / subscribing to transmit information in the Internet and the mobile network, and the system consists of operating systems of Windows and Linux The server subsystem 1, agent subsystem 2, terminal subsystem 3 and distributed database 4 as the software operating environment are composed of four parts, among which:

[0037] Server subsystem 1 is used to complete operations such as interaction with the database, other servers in this layer, lower-layer publish / subscribe agents, load balancing, topic storage, and matching. I...

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Abstract

The invention relates to a real-time data distribution system with a distributed network architecture and a working method thereof, the system adopts a publication / subscription communication mechanism to transfer information in Internet and a mobile network, and the system comprises a server sub-system, a proxy sub-system, a terminal sub-system and a distributed database, wherein, the server sub-system is used for completing the operations of topic storage, topic matching and the like; the proxy sub-system is used for completing the operations of receiving a topic from a terminal, transmitting a matching event to a subscriber, submitting the publication / subscription topic and the like; the terminal sub-system is used for completing the publication / subscription information of a user; and a distributed database which is used for storing the publication / subscription information and the system information. The system can automatically, quickly and safely provide real-time data transmission service against the subscription information of the user, provide the publication / subscription service of a variety of types of data, such as text information, streaming media, geographic position information and the like, provide up to 20 QoS control parameters, realize the QoS hierarchy configuration of an application layer and provide the convenience for function expansion of the data distribution system.

Description

technical field [0001] The present invention relates to a network system and its working method based on the data distribution service standard DDS to realize the message publishing / subscribing mechanism, to be precise, to a real-time data distribution system with a distributed network architecture based on DDS and its working method , belongs to the technical field of computer application software. Background technique [0002] The wide application of Internet technology and the rapid development of mobile computing, grid computing and ubiquitous computing platforms pose new challenges to distributed systems: they must meet the requirements of large-scale decentralized control and dynamic changes. This requires a flexible communication and interaction mechanism with dynamic and loose coupling characteristics among the various participants of the system. [0003] The Publish / Subscribe (Publish / Subscribe) system composed of three entities, the information publisher, the info...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L12/56H04L29/06
Inventor 高锦春刘春旭马晓雷刘元安
Owner BEIJING UNIV OF POSTS & TELECOMM
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