Tag: Video Quality Monitoring System
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The video quality diagnostic system is not only part of the intelligent analysis, but also part of the monitoring system. As a part, it is constantly upgrading and improving, and it plays an increasingly important role in the overall system. Of course, the emergence and application of a new system is not always smooth, but also faces challenges from all aspects.
Change in acceptance
As mentioned above, there are two main treatment methods for video diagnosis, namely, back-end identification and front-end embedded recognition. Which method is more in line with actual needs? Liu Xuefei, product manager of Beijing Wen'an Technology Development Co., Ltd. believes that the method of embedded identification solves The video stream consumes a lot of bandwidth, and it can also detect device faults in real time. However, the problem is that the power consumption of the front-end IPC increases and the cost of the IPC equipment increases. Although the way of back-end access identification is lower in power consumption and cost, how to detect faults in time under limited bandwidth is also a problem to be solved. The hottest stage of the construction of “safe city†in China has passed. Now the camera network has been built, and many of them are not equipped with embedded identification modules. These devices are unlikely to be replaced in a short period of time, so for a while, the back end System diagnostics will have a major place. As hardware costs decrease and processes improve, embedded IPC system diagnostics will be in the future. Abbott Du Jianying also has full confidence in front-end embedding: "The future algorithm must be directly embedded in IPC." At the same time, he also rationally pointed out the lack of embedded design: a camera can only support a certain number of diagnostic functions, such as It can only embed simple functions such as black screen, over-exposure, and occlusion. The two functions of scrolling and color casting are not available in the camera.
Extended applications will expand
With the improvement of the diagnostic system, it will certainly extend to other applications, so that the video diagnostic system is no longer limited to the quality analysis of video, and simultaneous real-time diagnosis is given to the network situation and the operating status of each hardware device. Diagnose the function of the system. Suzhou Keda Liu Zhiqiang introduced that in addition to image analysis technology, the video diagnosis system should take two points into consideration: one is the network management technology. For an IP communication system, the network management is very important, and its purpose is mainly equipment management and operation status monitoring. In the IP monitoring system, the network management system can implement the management of the front-end IPC equipment, including the equipment running status, transmission network, parameter configuration, remote debugging and so on. A professional network management system still has relatively large development difficulty. At the same time, it needs to follow the standard network management protocol system. Second, the alarm linkage technology. After detecting the IPC equipment and image problems, the system must actively alarm and connect the back-end system. It is most important to issue corresponding image switching, phono-electrical warning, etc. This involves systematic security linkage.
People have more and more demand for video diagnostic systems, and they have made greater expectations for the functions they can achieve. Beijing Wen’an Liu Xuefei believes that for monitoring system operation and maintenance personnel, it is only the first step to find faults. Analysis, processing, feedback, supervision, and all operations and operations around equipment failure are valuable entry points for system diagnostics. In the case of signal failures, there are many possible reasons for signal failures, such as IPC shield fouling, IPC loss of power itself, abnormal IPC and back-end links, back-end network equipment or management equipment anomalies, and so on. Therefore, it is not enough to give a fault conclusion from the perspective of the video signal to solve the problem faced by the user. Users need more than just a system diagnostic tool to find problems, but to be able to pass data analysis in the event of a failure, to get the basic cause of the failure, and to give reliable advice. This requires diagnostic tools, on the one hand to cooperate with the monitoring platform, on the other hand to dig deeper into user needs. Future diagnostic systems should be able to provide a complete solution to address the operation and maintenance of IPC equipment.
In addition, there are some obstacles caused by human factors. Abbott Du Jianying reminded: "We have noticed that the maintenance of cameras in some areas is outsourced. If there is a video quality diagnosis system, it will increase the outsourcing maintenance staff. The workload, so this part of the system has a great resistance to system diagnostic products, and some even deliberately destroy the independent video diagnostic system server." The resulting management problems require users and administrators to put the diagnostic system into operation. Do a good job in the management of personnel organizations.
From the perspective of application requirements of video quality diagnostic systems, its development momentum is strong. When measured by the status quo of development and the status quo of technology, it is still bound to have a long way to go. All the way, the twists and turns are only going straighter and faster. With the help of so many peers, I believe that the video diagnostic system will play an important role in intelligent analysis, diagnosis and management in large-scale security monitoring applications, and promote the rationalization of large-scale project solutions. Sex, to promote the industry to develop in a more mature direction.
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