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Real-time data communication method based on UDP protocol

A technology of real-time data and communication methods, applied in the field of network communication, can solve the problems of limited transmission capacity, poor transmission stability, and low system security, and achieve the effects of overcoming capacity limitations, ensuring stability, and ensuring security

Inactive Publication Date: 2009-04-08
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a real-time data communication method based on the UDP protocol, which overcomes the disadvantages of low system security, limited transmission capacity, and poor transmission stability encountered in the current real-time data transmission process

Method used

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  • Real-time data communication method based on UDP protocol

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Embodiment Construction

[0023] The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary, and is not intended to limit the scope of the present invention and its application.

[0024] In this embodiment, an electric power industry information network is taken as an example for description. In power industry enterprises, it can usually be divided into production network and management network. The production real-time data application system is in the management network, but real-time data needs to be obtained from the production network. Since the security level of the management network is not very high, in order to ensure the stable operation of the production system, the production network and the management network are physically separated by an isolator, which ensures the transmission of production real-time data while ensuring the safety of the production system .

[0025] Usual...

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Abstract

The invention discloses a real-time data communication method based on UDP protocol in the technical field of network communication. The invention comprises the technical proposal as follows: first, data to be transmitted is divided into batch data on a transmitting end or a forwarding end; then, data of each batch is divided into UDP data packet groups; the UDP data packet is transmitted to a receiving end; a receiving thread is initiated by the receiving end; whether to copy the UDP data packet to the receiving buffer area, to empty the receiving buffer area or to abandon the UDP data packet or not can be decided according to acquisition time in the UDP data packet and acquisition time recorded in the receiving buffer area; finally, when the total number of the UDP data packet in the receiving buffer area achieves the group number of data of the batch, the UDP data packet is assembled into complete batch data according to the group number of the UDP data packet and the size of the data area. The method overcomes the problem of capacity constraint of data transmission based on the UDP protocol, and simultaneously enhances the stability and security of data transmission.

Description

Technical field [0001] The invention belongs to the technical field of network communication, and in particular relates to a real-time data communication method based on a UDP protocol. Background technique [0002] Real-time data transmission is a key technology in the enterprise automation system. The research and development of real-time data transmission technology with independent intellectual property rights has great theoretical research and practical significance. In process industries such as power companies, real-time data is an important data resource for companies, a bridge connecting production automation systems and management information systems, and the foundation of management automation. The production status and equipment status are timely and accurately transmitted to the management information system, which can provide information support for management. Effective use of real-time data can provide support for corporate decision-making, improve corporate manag...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L12/56H04L12/861
Inventor 顾煜炯张毅
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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