Analysis of Four Major Problems Faced by Railway Video Surveillance System

The development of China's railway monitoring has continued to rise with the development of the entire railway industry. Since the founding of New China, it has gone through three stages.

The first stage: the early period of liberation to the end of the 1970s. In the past 30 years, due to the severe impact of economic development at that time, the train was still being driven by the oldest steam locomotive. At that time, the railway protection was mainly monitored through the monitoring of the flow of railway staff.

The second stage: the 1980s to the end of the 1990s. This is a period of rapid development of China's railway industry. During this period, internal combustion and electrified locomotives are mainly used as traction power for trains. In order to ensure the safe operation of the railway, analog video technology is used for monitoring in the waiting rooms, platforms, ticket offices, and freight stations in oversized stations.

The third stage: the early 20th century to the present. This is the period of rapid development of China's railway industry, using the most advanced electric locomotives made in China as the traction power for trains; the high-speed railways have been successively opened and operated; China's railway operations have undergone numerous speed-ups; and railway comprehensive video surveillance systems are rapidly being developed by analog video technology. Digital-analog combined with current networked digital video technology.

Although the current development of railway video surveillance is excellent, it still has the following problems:

System specifications are not uniform It is reported that all major industries and departments have introduced or are brewing their own specifications, which led to the diversity of video encoding and decoding standards. The absence of powerful specifications in the system data exchange links has led manufacturers to develop their own proprietary algorithms under the current international coding and decoding standards (such as H.264 and MPEG4 and MJPEG), and each company has packaged each video signal during the compression process. The principles and methods are different, the variety is numerous, the standards are not the same, and the functions are different. The products of different manufacturers are not compatible and the interoperability is not strong. If a company's products are used early in the project, it is easy to form a monopoly, which is not conducive to the long-term monitoring system. Steady development, maintenance and expansion.

The low level of integrated railway comprehensive video surveillance system is becoming larger and larger, and the system needs further integration with intruder alarm systems, fire alarm systems, access control systems, and power monitoring systems, which makes integrated video surveillance systems more complex. The traditional island system will not be able to meet the deep development of the system application. Only by gathering, processing, and transmitting various system data through the network can the system's function be deepened and the integration of the railway integrated video surveillance system can be improved.

Low level of intelligence The number of railway passengers, the situation is relatively complex, and there are many monitoring points, so it is difficult to rely on manpower to respond to various unexpected situations in a timely and correct manner. Through intelligent video analysis technology, high-speed analysis and understanding of video images can be performed, thereby completing functions such as traffic statistics, crowd detection, face recognition tracking, automatic alarm, and monitoring linkage. This greatly reduces the workload of personnel and improves system performance. Accuracy and timeliness.

Poor sharing, as we all know, railway video surveillance system involves many business departments, such as the public security, traffic management section, locomotive depot, scheduling section, brigade system, passenger section, freight section, etc. have their own unique video surveillance needs, due to the professional division of the railway sector Obviously, the relevance of various professions is relatively low, and the video surveillance system adopts the principle of “who is responsible for construction and who is responsible for it”. Therefore, the interconnection interfaces between the Ministry of Railways, the railway bureau and related stations and railway information application systems are reserved, and the There is integration of video resources to give greater play to the role of the railway's integrated video surveillance system.