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Video monitoring method for small hydropower station telemechanical system in narrowband network

A technology of video surveillance and telecontrol system, applied in the direction of closed-circuit television system, etc., can solve the problems of poor data transmission reliability, limited line bandwidth, and inability to collect video with large data volume.

Inactive Publication Date: 2006-05-24
ZHEJIANG UNIV OF TECH
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Problems solved by technology

[0007] In order to overcome the limitation of the line bandwidth of the video monitoring method of the remote control system of the small hydropower station under the existing narrow-band network, it is impossible to use the usual video transmission method to realize the video collection of a large amount of data and the shortcomings of poor data transmission reliability; the invention provides a A video monitoring method for remote control system of small hydropower station that realizes remote collection of large amount of data and good reliability of data transmission in a narrowband network environment

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  • Video monitoring method for small hydropower station telemechanical system in narrowband network
  • Video monitoring method for small hydropower station telemechanical system in narrowband network
  • Video monitoring method for small hydropower station telemechanical system in narrowband network

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Embodiment Construction

[0050] The present invention will be further described below in conjunction with the accompanying drawings.

[0051] refer to figure 1 , figure 2 , a video monitoring method for a telecontrol system of a small hydropower station under a narrowband network, the method mainly includes the following steps:

[0052] (1), the collection of video data flow: what the video camera inputs to the video acquisition card is a standard AV video signal, and its peak-to-peak value is 1.0V. The video capture card uses over-sampling to sample the video signal to ensure the correctness of the signal sampling. At the same time, the sampled video signal is encoded and compressed according to the H.264 standard, and finally converted into a digital video stream, and the video data stream is sent to the video acquisition module running in the host computer through the PCI bus for processing. In order to ensure the real-time performance of video data stream processing and prevent the occurrence ...

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Abstract

The invention relates to a video monitoring-controlling method for small hydraulic power plant under narrow-band network. The monitoring-controlling system comprises host machine, camera, cradle head, video collection card, network card and modem. The monitoring-controlling method includes: 1.collect video data flow; 2.net-band dial and network connection; 3.set up the network connection with servo; 4.maintenance of picture frame column; 5.computing the rectangular matrix Tmin of variable zone; 6.compress the grating picture of variable zone; 7.asynchronous SOCKET transmission of compressed picture of variable zone; 8. decompress the grating picture of variable zone; 9.restoring the present picture frame Cí». Advantages: realized remote collection of large amount of data and good data transmission reliability.

Description

(1) Technical field [0001] The invention relates to a video monitoring method for a telecontrol system of a small hydropower station under a narrowband network. (2) Background technology [0002] In the telecontrol monitoring system of a small hydropower station, data collection alone cannot achieve a good monitoring effect. Therefore, real-time monitoring of on-site operating conditions through video can greatly improve the monitoring effect of the telecontrol system. At the same time, if some special locations such as dams and water outlets are manually monitored, it will not only waste a lot of human resources, but also have many unsafe hidden dangers. Therefore, if remote video technology can be used for centralized monitoring of these places that are dangerous and very scattered, the above problems can be well resolved. In the remote monitoring system of small hydropower stations, the video monitoring system is mainly responsible for monitoring some remote locations (s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18
Inventor 王万良蒋一波赵燕伟何通能
Owner ZHEJIANG UNIV OF TECH
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