Method and device for acquiring video monitoring data acquisition as well as video monitoring system
A video data and data acquisition technology, applied in closed-circuit television systems, digital video signal modification, television, etc., can solve the problems of inability to achieve video acquisition and encoding card data intercommunication, data interoperability, and video acquisition and encoding card data. , to achieve the effect of interoperability
Active Publication Date: 2013-03-20
CHENGDU HUAWEI TECH
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Problems solved by technology
Usually, video capture and encoding cards produced by different manufacturers use different protocols, that is, only the data acquisition software provided by the factory can obtain data from the video capture and encoding cards produced by each manufacturer, and the data acquisition software provided by other manufacturers cannot open the video. Acquisition and encoding cards, for video acquisition and encoding cards produced by different manufacturers, the data in the video acquisition and encoding cards cannot be interoperable
[0003] In the process of realizing the present invention, the inventor found that there are at least the following problems in the prior art: in the upgrading and transformation process of the video monitoring system, it often occurs that video capture and code cards produced by different video capture and code card manufacturers are used in the preceding and following two stages , the data intercommunication between video acquisition and encoding cards from different manufacturers cannot be realized in the prior art
That means that the original software cannot be stopped, so the new system cannot obtain the data of the video capture encoding card
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[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0024] Aiming at the inability to achieve data intercommunication between video acquisition and encoding cards produced by different manufacturers in the prior art, an embodiment of the present invention provides a video monitoring data acquisition method, figure 1 It is a schematic flow diagram of an embodiment of the video monitoring data acquis...
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The embodiment of the invention provides a method and device for acquiring video monitoring data as well as a video monitoring system, wherein the method for acquiring the video monitoring data comprises the following steps: inquiring a data transmission channel function of a target video capture / coding card; and modifying the entry address of the data transmission channel function as the entry address of a third-party data transmission function, wherein the third-party data transmission function is used for copying the video data of the target video capture / coding card and the sending the video data of the target video capture / coding card to third-party software when the third-party data transmission function is executed. The embodiment of the invention also provides the corresponding device for acquiring the video monitoring data and the video monitoring system comprising the device for acquiring the video monitoring data. By utilizing the method, device and system disclosed by the embodiment of the invention, the operation that the third-party software acquires the video monitoring data from the video capture / coding cards manufactured by different manufacturers can be realized, thereby realizing the communication between the video monitoring data of the video capture / coding cards manufactured by different manufacturers.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of video surveillance, and in particular, to a video surveillance data acquisition method, device, and video surveillance system. Background technique [0002] The video capture and encoding card is the hardware device of the video surveillance system, and it is also an important part of the video surveillance system. The main function of the video capture and encoding card is to collect the video signal of the analog camera, and then perform analog-to-digital conversion on the signal, convert it into a digital signal, and then Encode and compress digital signals. Usually, video capture and encoding cards produced by different manufacturers use different protocols, that is, only the data acquisition software provided by the factory can obtain data from the video capture and encoding cards produced by each manufacturer, and the data acquisition software provided by other manufacturers ca...
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IPC IPC(8): H04N7/18H04N7/26H04N19/00
Inventor 李欢
Owner CHENGDU HUAWEI TECH