3G network video monitoring system and monitoring method

A video monitoring system and 3G network technology, applied in the 3G network video monitoring system and monitoring field, can solve the problems of GPRS packet loss, transfer delay, large delay, etc., and achieve the effect of increasing occupation, reducing consumption, and small delay

Inactive Publication Date: 2010-10-13
SHENZHEN HUANGHE DIGITAL TECH
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  • Abstract
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Problems solved by technology

[0003] However, the use of GPRS network has the following defects: 1. GPRS will cause packet loss; 2. The actual rate is higher than the theoretical value, the theoretical maximum is 172.2kbps, and the actual network bandwidth is generally between 32kbps and 96kbps; 3. Modulation method Not optimal; 4. There is a transfer delay
[0004] Because GPRS has the above defects, when it is applied to video surveillance, image blur often occurs due to packet loss, the delay is relatively large, and the image is very discontinuous

Method used

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  • 3G network video monitoring system and monitoring method
  • 3G network video monitoring system and monitoring method
  • 3G network video monitoring system and monitoring method

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] Such as figure 1 Shown is a block diagram of the 3G network video surveillance system. This embodiment includes a sending end 1 and a receiving end 3 , and the sending end 1 sends a network monitoring screen to the receiving end 3 through the Internet 5 .

[0021] The sending end 1 is set on a network camera, and includes a frame rate controller 11 , a video encoder 13 and a sending module 15 . The frame rate control 11 grasps the current network bandwidth through the response mechanism, and adjusts the encoding strategy of the video encoder 13 and the sending strategy of the sending module 15 in real time according to the current network bandwidth.

[0022] The receiving end 3 includes a feedback control 31 , a video decoder 33 and a QoS monitoring 37 to receive the network monitoring screen sent by the sending end. The feedback cont...

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Abstract

The invention discloses a 3G network video monitoring system, comprising a sending end, a frame rate control and a receiving end. The sending end is arranged in an internet protocol camera, sends network monitoring pictures and comprises the frame rate control, a video encoder and a sending module. The frame rate control masters the current network bandwidth through a response mechanism, and adjusts the encoding strategy of the video encoder and the sending strategy of the sending module in real time according the current network bandwidth. The receiving end comprises feedback control, a video decoder and a QoS (Quality of Service) monitor and receives the network monitoring pictures sent by the sending end. The invention also discloses a 3G network video monitoring method. By adopting the 3G network video monitoring system and method, the images are smoother, delay is less, and no blurry screen exists.

Description

【Technical field】 [0001] The invention relates to the field of video monitoring, in particular to a 3G network video monitoring system and a monitoring method. 【Background technique】 [0002] At present, the remote video monitoring system has been widely used in industrial and mining enterprise production site monitoring, telecommunications room monitoring, urban traffic management and other fields. With the development of mobile communication technology, the speed of wireless data transmission has been greatly improved, which provides conditions for remote wireless network video monitoring. Currently, the remote wireless network adopts a GPRS network (General Packet Radio Service, General Packet Radio Service). GPRS wireless video monitoring system is divided into 3 parts: on-site video acquisition site, GPRS network and remote video server. A TCP connection is established between the on-site video acquisition site and the remote video server through the GPRS network to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18H04N7/52H04N7/26H04L29/06H04N19/115
Inventor 周波
Owner SHENZHEN HUANGHE DIGITAL TECH
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