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Wireless video monitoring system and image transmission method and device thereof

A wireless video monitoring and wireless transmission technology, applied in closed-circuit television systems, image communication, television, etc., can solve the problem that effective bandwidth wireless transmission links cannot be effectively utilized.

Active Publication Date: 2017-05-31
UNIVERSITY OF CHINESE ACADEMY OF SCIENCES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present invention provide a wireless video surveillance system and its image transmission method and device, to at least solve the problem that the effective bandwidth of the wireless transmission link for transmitting wireless monitoring information has time-varying characteristics in the prior art Effectively exploited technical issues

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  • Wireless video monitoring system and image transmission method and device thereof
  • Wireless video monitoring system and image transmission method and device thereof

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Embodiment 1

[0030] According to an embodiment of the present invention, an embodiment of an image transmission method for a wireless video surveillance system is provided. It should be noted that the steps shown in the flow charts of the accompanying drawings can be performed on a computer such as a set of computer-executable instructions system, and, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0031] figure 1 It is a flowchart of an image transmission method for a wireless video surveillance system according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0032] Step S21, obtaining an estimated value of effective capacity of the wireless transmission link in real time.

[0033] Specifically, since the estimated value of the effective capacity of the wireless transmission link has time-varying c...

Embodiment 2

[0166] According to an embodiment of the present invention, an embodiment of an image transmission device for a wireless video surveillance system is provided, Figure 8 is a schematic diagram of an image transmission device for a wireless video surveillance system according to an embodiment of the present invention, such as Figure 8 As shown, the device includes:

[0167] The acquiring module 80 is configured to acquire the estimated value of the effective capacity of the wireless transmission link in real time.

[0168] The determining module 82 is configured to divide the current frame image in the video into multiple regions, and determine the transmission priority of each region according to a preset monitoring task.

[0169] A selection module 84, configured to select one or more areas according to the transmission priority of each area, wherein the transmission priority of the selected area is higher than that of the unselected areas, and the sum of the data volumes o...

Embodiment 3

[0194] According to an embodiment of the present invention, an embodiment of an image transmission system for a wireless video surveillance system is provided, Figure 9 is a schematic diagram of an image transmission system for a wireless video surveillance system according to an embodiment of the present invention, such as Figure 9 As shown, the system includes:

[0195] The image capture device 10 is used for capturing video.

[0196] The processor 20 communicates with the image acquisition device, and is used to acquire the estimated value of the effective capacity of the wireless transmission link in real time, divide the current frame image in the video into multiple areas, and determine the transmission of each area according to the preset monitoring task Priority, select one or more areas according to the transmission priority of each area, where the transmission priority of the selected area is higher than that of the unselected area, and the total data volume of th...

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Abstract

The invention discloses a wireless video monitoring system and an image transmission method and device thereof. The method comprises the steps that the effective capacity estimated value of a transmission link is acquired in real time; the current frame of image in a video is divided into a plurality of areas, and the transmission priority of each area is determined according to a preset monitoring task; one or more areas are selected according to the transmission priority of each area, wherein the transmission priority of the selected area is higher than that of the unselected areas, and the sum of the data volume of the selected area is smaller than or equal to the effective capacity estimated value of the wireless transmission link; the selected area in the current frame of image is transmitted through the wireless transmission link. The technical problem that in the prior art, due to the fact that the effective bandwidth of a wireless transmission link for transmitting wireless monitoring information has time-variant characteristics, and the wireless transmission link cannot be effectively utilized is solved.

Description

technical field [0001] The invention relates to the field of video monitoring, in particular to a wireless video monitoring system and an image transmission method and device thereof. Background technique [0002] Video surveillance is generally considered to be the most in line with human cognition in the means of obtaining information. Therefore, in recent years, it has been widely used in traffic monitoring, security monitoring and other fields, and has achieved good results. In some special applications, wireless video surveillance systems can play a greater role, especially those deployed on mobile platforms, such as military / civil drone surveillance systems, unmanned vehicles, industrial inspection robots, etc. . Compared with traditional video surveillance systems, wireless video surveillance systems can significantly enhance our ability to grasp on-site information and deployment flexibility. For example, in military applications, the UAV-based video surveillance s...

Claims

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Application Information

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IPC IPC(8): H04N7/18
CPCH04N7/181
Inventor 秦飞韩振军张武雄杨旸焦健彬
Owner UNIVERSITY OF CHINESE ACADEMY OF SCIENCES
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