Self-diagnostic method and system of composite video optical communication system
An optical communication system, composite video technology, applied in transmission monitoring/testing/fault measurement systems, transmission systems, digital transmission systems, etc., can solve the problem of inability to determine the cause of the fault, and achieve the effect of low cost and easy implementation of equipment.
Active Publication Date: 2013-12-25
BEIJING HUAHANG HAIYING NEW TECH DEV
View PDF1 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] In order to solve the problem that in the existing long-distance video monitoring field, when equipment such as transmitters, optical links or receivers fails, the specific cause of the failure cannot be judged, and a self-diagnosis of a composite video optical communication system is provided method and system
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] The specific embodiment of the present invention provides a self-diagnosis method of a composite video optical communication system, such as figure 1 As shown, the method may specifically include:
[0024] Step 11, judging whether there is a video signal input at the video transmitter or whether the transmitter is powered off.
[0025] Specifically, the fault may be diagnosed from the transmitting end first. For the presence or absence of video signal input, whether the corresponding transmitter can obtain video signal input by searching the signal source of the corresponding transmitter, when the video synchronization signal is lost for more than 15 lines, it can be considered that there is no video signal input; The judgment of power failure can be obtained by detecting the power supply, that is, detecting the time when the transmitter sends out video signals at the last moment of the life cycle. If the time is later than the scheduled end time of work, it can be con...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a self-diagnostic method and a self-diagnostic system of a composite video optical communication system, belonging to the technical field of network data detection. The self-diagnostic method and the self-diagnostic system of the composite video optical communication system solve the problems that the specific fault reason cannot be judged when a transmitter, an optical link, a receiver or other device fails in the traditional long distance video monitoring field. The corresponding method comprises the following steps of: judging whether a transmitting end of video has a video signal input or whether a transmitter is powered down; if the judging result is that there is no video signal input, then generating a first error image and sending to an output unit; if the judging unit is that the transmitter is powered down, then generating a second error image and sending to the output unit; judging whether an optical link or a receiver fails; if the judging result is that the optical link fails, then generating a third error image and sending to the output unit; if the judging result is that the receiver fails, then generating a fourth error image and sending to the output unit; sending one or more of the received first to fourth error images to a display.
Description
technical field [0001] The invention relates to a self-diagnosis method and system of a composite video optical communication system, belonging to the technical field of network data detection. Background technique [0002] At present, most of the long-distance video signal transmission in the monitoring field is realized by video optical transceivers. When the transmitter is powered off, the camera or cable is faulty, no effective image signal enters the optical transceiver; the defect of the optical link, the fault of the transmitter, and the image cannot be transmitted to the terminal display. Therefore, in the absence of video, the terminal display will have a blue screen or a black screen. At this time, it is impossible to judge whether it is a problem with the front-end video signal or the problem with the optical transmission system. Contents of the invention [0003] In order to solve the problem that in the existing long-distance video monitoring field, when equi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26H04L25/26H04B10/07
Inventor 蔡良弟郭树晓陈栋
Owner BEIJING HUAHANG HAIYING NEW TECH DEV