A dual-card front-end device and control method and system for use in a video system
A technology of front-end equipment and control methods, applied in transmission systems, digital transmission systems, data exchange through path configuration, etc., can solve problems such as bandwidth cannot be effectively controlled, and achieve the effect of improving communication capabilities, stability, and good technical effects
Active Publication Date: 2015-09-02
SUZHOU KEDA TECH
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Problems solved by technology
[0010] Aiming at the defect that the bandwidth cannot be effectively controlled in the prior art, the object of the present invention is to provide a control method and a corresponding control device
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[0029] figure 1 A structural diagram showing a method for controlling communication in a front-end device with dual cards of a video system according to a specific embodiment of the present invention. Specifically, in this embodiment, the front-end device includes two parts, that is, a code stream forwarding proxy client 1 and a code stream forwarding proxy server 2 . The code stream forwarding proxy client, referred to as PC in this application document, is preferably a hardware plug-in installed on the front-end equipment, and suboptimally can also be realized by a computer software. Specifically, the front-end device includes a processor (CPU) 22 and two 3G modules, also called a first communication module 21 and a second communication module 23 . Those skilled in the art understand that the first and second communication modules are connected to the CPU through USB, and each module serves as a slave device of a USB Modem. When the system loads the USB Modem driver, the U...
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The invention provides a control method for communicating in double-card front-end equipment in a video system. The front-end equipment comprises a first communication module and a second communication module. The control method comprises the steps as follows: a, according to a network state, selecting a communication connection from a first communication connection and a second communication connection to transmit the data to be transmitted, wherein the first communication connection is a communication connection which is established by the first communication module and a control platform, and the second communication connection is a communication connection which is established by the second communication module and the control platform; and b, judging whether the network states of the first communication connection and the second communication connection are changed; if yes, reselecting a communication connection to transmit the data to be transmitted. The invention further provides double-card front-end equipment for a video system. According to the invention, the objectives of double-card dialing and double-card collaborative working are achieved, thereby increasing bandwidth used by the front-end equipment on the premise of limited bandwidth.
Description
technical field [0001] The invention relates to a video control system, in particular to a front-end device in the video system, in particular to a control method with a dual-card dialing function and the corresponding front-end device. Background technique [0002] Network bandwidth is one of the bottlenecks affecting video surveillance. Under the conditions of existing IP resources and network infrastructure, bandwidth will always be the most important factor restricting the development of network video surveillance. With the continuous optimization of the image definition of network video surveillance products, the bandwidth environment required by the surveillance system to transmit video streams is becoming more and more stringent: the clearer the image, the higher the bandwidth requirements for video stream transmission. At present, in the field of video surveillance, such problems generally exist: [0003] 1. The upstream bandwidth is low. [0004] In a wireless net...
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IPC IPC(8): H04L12/28H04L12/70H04L29/06H04W28/08
Inventor 郁雷
Owner SUZHOU KEDA TECH