Network congestion control method and device for alarm network

A network congestion and network technology, applied in the field of communication, can solve the problems affecting the monitoring effect, congestion, video picture mosaic, etc., and achieve the effect of reducing network congestion

Active Publication Date: 2017-04-26
ZHEJIANG DAHUA TECH CO LTD
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AI Technical Summary

Problems solved by technology

During the application process, the alarm network of video surveillance has very high requirements for bandwidth stability. If it is not handled properly, there will be problems such as mosaics, screen jumps, and pauses in the video screen, which will affect the monitoring effect; For services with particularly high bandwidth requirements, in a certain period of time, if a large number of alarm triggers occur in the alarm network at the same time, the bandwidth demand of the alarm network will exceed the upper limit of the bandwidth for a period of time, resulting in congestion, seriously reducing the transmission efficiency of alarm events and even Deadlock occurs

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  • Network congestion control method and device for alarm network
  • Network congestion control method and device for alarm network
  • Network congestion control method and device for alarm network

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Embodiment Construction

[0053] The network congestion control method of the alarm network provided by the embodiment of the present invention can be based on three parameters: the current situation of the alarm network, the optimal state of the network, and at least one empirical value of network conditions determined according to the law of the number of alarm events sent. Determine the probability evaluation value of network congestion at the current moment, and divide the probability evaluation value into intervals, where each interval corresponds to a different alarm event sending mechanism, and then start the corresponding alarm event mechanism according to the value of the determined probability evaluation value, Reduce the occurrence of network congestion, and at the same time, when the network is prone to congestion, it can give priority to sending alarm events with a higher emergency level.

[0054] The embodiments of the present invention will be further described in detail below in conjunct...

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Abstract

The invention provides a network congestion control method and device for an alarm network and aims to reduce network congestion of the alarm network and improve sending timeliness and accuracy of an alarm event in the alarm network. According to the network congestion control method, a present network state, an optimal network state and at least one network state empirical value determined according to rules of the sending quantity of alarm events, a network congestion generation probability assessment value at the present time is determined, interval division of the probability assessment value is carried out, intervals respectively correspond to different alarm event sending mechanisms, and a corresponding alarm event mechanism is started according to a value of the determined probability assessment value. Through the method, network congestion is reduced, and an alarm event with a relatively high emergency level is preferably guaranteed to send firstly when the network is liable to generate network congestion.

Description

technical field [0001] The invention relates to the communication field, in particular to a network congestion control method and device for an alarm network. Background technique [0002] Video surveillance is an important part of the security system. In recent years, with the rapid development of computers, networks, image processing, and transmission technologies, video surveillance technology has also made great progress, and has become a real-time monitoring tool for key departments or important places in various industries. physical basis. During the application process, the alarm network of video surveillance has very high requirements for bandwidth stability. If it is not handled properly, there will be problems such as mosaics, screen jumps, and pauses in the video screen, which will affect the monitoring effect; For services with particularly high bandwidth requirements, in a certain period of time, if a large number of alarm triggers occur in the alarm network at...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/841H04L12/851H04L12/801
CPCH04L47/127H04L47/2433H04L47/283
Inventor 徐杨波
Owner ZHEJIANG DAHUA TECH CO LTD
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