Method and device for reducing NVR live forwarding relay

Abstract

The invention provides a method for reducing NVR live forwarding time delay. The method is applied to an NVR. The method includes the first step of receiving a live video-on-demand request from a monitoring rear-end device and judging whether the on-demand live flow is recorded in a live flow information sheet, if not, receiving the IP address of the interface receiving the live video-on-demand request and the IP address of the monitoring rear-end device, sending the IP address of the interface of the live video-on-demand request and the IP address of the monitoring rear-end device to an on-demand monitoring front-end device and establishing a corresponding live flow information sheet, and the second step of carrying out forwarding processing through an exchange chip of a local network card according to the target IP address of a message after receiving the on-demand live flow sent by the monitoring front-end device, wherein the target IP address of the live flow sent by the monitoring front-end device is the IP address of the monitoring rear-end device, and a source IP address is the IP address of the interface receiving the live video-on-demand request. Through the method, the NVR live forwarding time delay is effectively reduced, and performance pressure of the NVR is relieved.

Description

technical field [0001] The invention relates to the technical field of video surveillance, in particular to a method and device for reducing the delay of NVR live forwarding. Background technique [0002] NVR (Network Video Recorder, network hard disk video recorder) is a management and storage product of the monitoring network, and it is widely used in some existing small monitoring networks. Its main function is to receive the digital video stream transmitted by IPC (Internet Camera) equipment through the network, store and manage it, so as to realize the advantages of distributed architecture brought by networking. To put it simply, NVR can watch, browse, playback, manage, and store the monitoring video streams of multiple network cameras at the same time, thus getting rid of the shackles of computer hardware, and no longer have to face the cumbersome installation of software. [0003] As a separate monitoring domain, the NVR can be connected to many terminal devices; th...

AI Technical Summary

Problems solved by technology

Media stream forwarding by MS is a very mature technology with its own advantages, but in figure 1 In such a network as shown, on the one hand, it will bring performance pressure on the NVR, on the other hand, the streaming media forwarding of the NVR similar to MS will also cause a certain delay for live streaming.

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