Business background
Coal is known as black gold, food for industry, and it is one of the main energy sources used by the human world since the 18th century. Due to the huge reserves of coal, coupled with the rapid development of science and technology, new technologies such as coal vaporization are becoming more mature and widely used, coal will definitely become one of the irreplaceable energy sources in human production and life. Since most of the ore layers are far from the surface, underground mining is required, and coal mines are a reasonable space for humans to excavate coal-rich geological layers.
Safety accidents in coal mines may cause a large number of personal casualties and property losses. The Party Central Committee and the State Council have always attached great importance to this. Article 3 of the "Production Safety Law of the People's Republic of China" clearly stipulates that the management of production safety shall adhere to the policy of safety first and prevention first. At the same time, the State Administration of Safety Supervision also clearly requires the establishment and improvement of "six major systems" for safety and risk avoidance in coal mines across the country (monitoring and monitoring, personnel positioning, emergency risk avoidance, pressure wind self-rescue, water supply rescue and communication) to ensure the safe production of coal mines. .
Always adhere to the concept of scientific development and safe development, always implement the policy of "safety first, prevention first, and comprehensive management", and take a series of major measures to improve the legal system, increase investment, strengthen supervision, and promote China's coal industry and coal mine safety production conditions continue to be sustained Improve.
As an objective, mature and stable safety supervision method, video surveillance has been recognized by the energy industry and can play a huge role in coal mine safety supervision. At present, the cutting-edge technology of video surveillance - intelligent analysis, can play an effective early warning role in illegal production of coal mines, personnel records, prevention of dangerous areas, etc., and change post-event tracing into pre-warning, which can play a role in protecting national property and people's lives and property. to a vital role.
Design goals
The construction of the coal mine safety video surveillance system enables the coal mine safety supervision department to view the videos of coal mine production, storage, transportation and other links in real time and effectively. It can timely discover possible illegal and illegal operations in each link; hidden safety hazards that are not easy to find or intentionally concealed; factors that endanger the production and life safety of miners. And as an effective means of follow-up tracing.
1) Serving the grassroots actual combat, committed to improving the social management and control ability of the first-line actual combat units.
Install monitoring equipment in mines, mine entrances and exits, various computer rooms, coal mine entrances and exits, public complex places, etc., so that front-line supervisors can understand and grasp the production dynamics of the monitoring area in real time and intuitively, and timely detect and deal with various emergencies. , mass incidents, safety incidents, and crack down on illegal and illegal production and transportation behaviors. At the same time, it can effectively save the monitoring image information and provide evidence and clues for tracing the cause of the accident.
2) To serve command and decision-making, and to improve the scientificity and accuracy of command.
On the basis of ensuring the first-line application at the grassroots level, the monitoring system must be able to transmit real-time or non-real-time image information according to the instructions of the superior regulatory agency, so as to provide information support for the regulatory agency’s command and decision-making; it can ensure that the relevant departments of the regulatory agency are authorized and licensed to monitor the monitoring system. The information realizes convenient transfer across departments and regions, and serves for coordinated production.
3) For integrated application services, it is committed to improving the application level of technology and informatization in coal production.
The construction of monitoring system is an important part of technical prevention construction, and monitoring information is also an important resource of coal production technology and informatization. It is necessary to give full play to the intuitive and dynamic advantages of video information, gradually realize its comprehensive application in coal production and transportation, and combine the latest application of video surveillance - intelligent analysis to improve the application level of technology and informatization in the coal industry.
guiding ideology
When designing the coal mine safety video surveillance system, we adopted the concept of "smart video surveillance" to create an advanced video surveillance system. "Advanced nature" not only brings about innovations in technology, products and systems, but also brings about a reduction in the average cost of the system and the concept of "people-oriented".
From the perspective of technology, product and system innovation, it mainly includes the following core points:
1) The video images collected by the front-end are clear, and appropriate supplementary light equipment can ensure the continuity of observation at night; according to different application environments, different front-end equipment is selected to ensure that the equipment can work normally in harsh environments such as smoke and dust; video coding With advanced technology, the H.265 encoding standard reduces the bandwidth occupation by 50% or more than the H.264 and MPEG-4 encoding methods under the condition of ensuring image quality.
2) Adopt new storage technology to build a more reasonable local and network three-level video storage architecture. While satisfying data storage, it emphasizes centralized data management, intelligent retrieval of massive data, and multiple storage methods to ensure storage reliability.
3) The open integrated platform completes intelligent centralized management, linkage between multiple subsystems, emergency plan and command and dispatch.
On top of the above three core points, we consider more system-level reliability and user-friendly human-computer interaction interface, which mainly includes the following parts:
1) Product and accessories design assurance, product quality assurance, and product conditions;
2) Transmission network access requirement analysis, bearer performance analysis, safe operation risk analysis and avoidance methods;
3) Software platform architecture analysis, judgment and countermeasures;
4) At present, the gas value and other data in coal mine safety can be superimposed on the corresponding video image by video superimposing specific important parameter values. The monitoring personnel on duty can know the important parameter values on the scene while watching the video, which is helpful for reducing personnel. Burden and early warning play a very good role.
At the same time, the cost of system construction is an unavoidable problem when designing this system. Under the premise of homogeneity, same function, meeting and conforming to relevant national construction standards, and under the active advocacy of relevant central policies, we will give priority to domestically produced well-known brand.
Through close communication with users, we will build a set of advanced, highly reliable, intelligent, high-quality and economically competitive integrated video surveillance system.
According to the idea of "digitalization, networking and intelligence", on the premise of reliable operation, the advanced video monitoring technology is used to improve the advanced nature of the system and meet the development requirements; improve the management and application of the monitoring system, so that the monitoring system can be used for security, security, The function of the business is maximized; the linkage between the systems and the functions of the application software are perfected, so that the users can fully feel the stability, practicality and convenience when using the system. Make full use of control resources, give full play to the overall benefits, and make the system have the characteristics of sustainable development.
