Signal processing method based on multichannel coaxial visual control, and device thereof

Abstract

An embodiment of the invention discloses a signal processing method based on multichannel coaxial visual control, and a device thereof. The signal processing method comprises the steps of processing multiple video signals by a multipath video signal fixing module, thereby obtaining a fixed video signal, and transmitting the fixed video signal to a signal resolution module; performing resolution processing on the fixed video signal by the signal resolution module for resolving an overlapable control signal, and transmitting the overlapable control signal to a control signal output module; receiving a channel control signal by a menu control instruction processing module, processing the channel control signal for obtaining a menu control instruction, and transmitting the menu control instruction to the control signal output module; and outputting the overlapped control signal and video signal by the control signal output module according to the voerlapable control signal and the menu control instruction. In the embodiment of the invention, the control signal in the video signal can be analyzed, and menu control for different channels can be realized in a multichannel environment, thereby requiring no manual connection with a plurality of controllers.

Description

technical field [0001] The invention relates to the technical field of camera control, in particular to a signal processing method and device based on multi-channel coaxial video control. Background technique [0002] Today, the use of surveillance cameras is very common, and the cameras are usually installed at high places. Maintenance personnel need to climb to high places to operate when maintaining, testing, and adjusting settings. The traditional method of controlling the main chip menu of the camera is to use the button to ground The biggest problem with this method is that the cost of the button line is too high and the distance is short, so it is not suitable for long-distance use; in addition, if the user has already installed the coaxial cable, it needs to be installed separately. The button control line is installed, and if the user wants to control the menu, he needs to use a ladder to climb the camera at a height of 20 to 30 meters for debugging, which makes the...

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Problems solved by technology

[0002] Today, the use of surveillance cameras is very common, and the cameras are usually installed at high places. Maintenance personnel need to climb to high places to operate when maintaining, testing, and adjusting settings. The traditional method of controlling the main chip menu of the camera is to use the button to ground The biggest problem with this method is that the cost of the button line is too high and the distance is short, so it is not suitable for long-distance use; in addition, if the user has already installed the coaxial cable, it needs to be installed separately. Install the button control line, and if the user wants to control the menu, he needs to use a ladder to climb the camera at a height of 20 to 30 meters for debugging, which makes the work of debugging the menu difficult and dangerous

[0003] In the prior art, the control signal is superimposed on the 18th line and the 19th line of the video signal to control the camera. If this method is adopted, the user does not need to install additional control lines to control the camera. The main chip menu of the camera can be controlled on the Internet without affecting the transmitted video signal, but in this scheme, the circuit board of the camera must be modified by using an analog integrated circuit and a single-chip microcomputer, and the user needs to change the circuit board of the camera to add Coaxial vision control (Up The Coax, UTC) integrated circuit, which will bring inconvenience to users and increase the cost of users. At the same time, the modification time of the circuit board is relatively long, so that users cannot be used in time; Moreover, the existing UTC integrated circuit cannot separate the control signal in the video signal, and then realize the menu control, which brings difficulties to the user; in addition, the traditional solution is to apply to the menu control of a single-to-single camera. If it is necessary to control the menu in a multi-channel environment, the user needs to connect the controllers one by one to control the menu. Manually connecting multiple controllers not only increases the hardware cost, but also wastes time, bringing more benefits to the user. what a bother

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