Construction scheme of digital gas remote monitoring system in Gaofen coal mine

The township people's governments, forest farms directly under the county (reclamation area), and relevant departments of the county government:

"Yifeng county coal mine digital safety remote monitoring system construction scheme" has been studied and passed at the third executive meeting of the 14th people's government of the county, and is hereby issued to you, please follow it carefully.

July 3, 20071day

Remote monitoring of digital safety in Yifeng coal mine

System construction scheme

In order to deepen the safety improvement of coal mines, accomplish the task of gas control, and ensure that the construction of safety remote monitoring system in 20 coal mines in our county is completed on schedule, according to the unified requirements of "Coal Mine Safety Regulations" and provincial and municipal governments, the following construction schemes are formulated:

I. Guiding ideology

Fully implement Scientific Outlook on Development, adhere to the policy of "safety first, prevention first, comprehensive management", implement a series of policies and measures of the CPC Central Committee and the State Council on strengthening production safety, unswervingly push the two tough battles of coal mine safety deeper, and resolutely curb the occurrence of serious accidents.

Second, the general situation and objectives of construction

The remote monitoring system of coal mine digital safety is a comprehensive application of wireless data transmission, computer network, database, communication, automatic control and data middleware technology to establish the connection between coal mines and superior management departments, so that network platforms at all levels in the country can grasp the situation of each coal mine and working face in the system at any time and monitor methane, carbon monoxide, wind speed, temperature, throttle switch, equipment start and stop in real time. Once there is an abnormality, it can not only alarm and cut off power in time, but also let the coal mine take targeted measures according to the data collected by the system; At the same time, it can also provide a digital platform for on-site supervision, command, control and coordination for management departments at all levels to effectively prevent coal mine accidents, especially gas accidents. Draw lessons from the successful experience of early construction projects in neighboring counties (cities, districts), give full play to the advantages of latecomers, and strive to build the digital safety monitoring system of coal mines into a safe, reliable, stable, efficient and practical safety monitoring project.

Third, the construction technical standards

1, network mode: Browser/Server (B/S) mode is adopted for network information transmission.

2. Monitoring contents: including all data contents such as gas, ventilation monitoring and spontaneous combustion.

3. Data communication protocol: A unified and standardized data communication protocol with data format and transmission technology provided by superior users is adopted to transmit data in real time.

4. Coal mine network connection mode: optical fiber transmission is preferred, followed by ADSL broadband, CDMA(GPRS) wireless network mode and PSTN mode.

5. Scale of county monitoring center: (1) Dedicated line with bandwidth ≥ 1m; (2) Equipment: a comprehensive console, two servers, a multi-screen workstation, a router, a UPS power supply (standby time ≥4 hours), a printer, a projector and a set of genuine antivirus software (with firewall function).

6. Stability requirements: After the network communication is interrupted, the communication data can be automatically stored in the coal mine monitoring host to ensure that the data is not lost. After the network is normal, it can be automatically reconnected and retransmitted. When data transmission is resumed, recent data is sent first, and historical data is supplemented intermittently.

7. The basic functions of the system software:

(1) According to the standard procedures of "graded supervision and graded response", emergency plans and the responsibilities and authorities of relevant institutions and personnel at all levels in the response process, hierarchical authority management, real-time classified alarm of hidden dangers and network tracking and scheduling are implemented;

(2) The database of the county monitoring center adopts a large database (SQL SERVERA or Oracle), which stores monitoring data in different periods, and stores data such as hidden danger investigation, rectification, acceptance and statistics (a comprehensive coal mine management system is established to uniformly record, manage and track all major equipment and special operators in the county's coal mines. Supervise and record the detection, calibration, maintenance and replacement of equipment, training and replacement of personnel, basic information, etc. To ensure that all coal mines maintain safe and good working conditions);

(3) Multi-screen and multi-interface display and multi-function analysis can directly display the position, operation and status of monitoring equipment, and carry out classified query and summary;

(4) The data refresh time shall not exceed 30s；;

(5) The system has automatic time synchronization function (Beijing time);

(6) The network application software system has the functions of automatically searching and tracking the gas overrun and wind stopping areas, monitoring and displaying the gas concentration, and alarming the regional power failure;

(7) Integrate real-time monitoring and alarm (color display of over-limit data alarm and system sound alarm) and remote automatic control function under abnormal conditions, which can automatically display alarm points and issue control functions at the same time, and automatically generate mobile phone short messages under abnormal conditions and send them to corresponding supervisors;

(8) The system has the function of historical and real-time data classification query, and the single point data should be able to query the maximum and average value of every minute every day;

(9) The system has the function of geographic information system, and can display and edit various graphs and measuring points with vector data according to the needs of users. Switch value has animation display function; Using underground roadway geographic information system, the vector data of coal mine in the area under its jurisdiction are classified and stored;

(10) The system has the function of displaying the historical and real-time data curves of any number of days, and can display the data curves of at least three measuring points with different colors at the same coordinate at the same time, and the curves can be infinitely enlarged;

(1 1) The system has the function of querying and printing various reports (comprehensive daily report, simulated daily report, ten-day monthly report, on-off daily report, ten-day monthly report and over-limit daily report).

8. Safety requirements:

(1) Operating system has anti-virus function and should be able to resist malicious attacks;

(2) Establish users and passwords in the access classification of the system, and assign corresponding rights;

(3) The database has multi-level backup and security protection functions;

(4) The monitoring center computer room shall be equipped with lightning protection facilities as required.

9. System maintenance requirements: the county monitoring center and mine monitoring room have full-time monitoring personnel, and the system is maintained by special personnel, and all kinds of drawings are supplemented, modified and updated in real time;

10, others: system structure, function, installation, inspection and calibration of various sensors, etc. Comply with the "coal mine safety regulations" and other safety technical regulations.

Fourth, organizational guarantee.

1, set up a leading group for the construction of digital safety remote monitoring system in Yifeng county coal mine. Team leader: Wu Yun; Deputy leaders: Liu Zhong and Chen Chunyang; Members:, Jin Xianfeng,, Wu Changyuan, Hui, Deng,, Huang Xueguang, Yan Jinsheng, Fu, Huang Xiaohua, Chao Guofu, Luo Xinmin, Leng Dinghua. The office of the leading group consists of the County Safety Supervision Bureau, with the director of the office concurrently appointed by Comrade Lu Zhongming and the members of the office being Yan Jinsheng and Shi Yun.

2. Set up a project construction supervision team. Three to five representatives selected by coal mining enterprises shall cooperate with county-level finance, auditing and supervision departments to supervise the whole process of bidding, capital operation and construction quality of monitoring system construction.

3. Establish an expert review team. Computer and network professionals are called from the county talent pool to form an evaluation team to evaluate the technical standards, bidding and construction quality of the project.

Verb (abbreviation of verb) Budget, raising and payment methods of construction funds

The construction funds of digital safety monitoring system in coal mine are mainly divided into two parts. First, the cost of county-level monitoring center construction and remote networking is about 630 thousand yuan; The second is the construction cost of real-time monitoring equipment in each coal mine. Due to the different investment of existing real-time monitoring equipment in coal mines, in order to reduce the burden of coal mines, this construction is improved on the basis of making full use of existing equipment. This part of the cost is negotiated by the contractor and paid by the coal mine safety supervision bureau, with an average of about 35,000 yuan per mine, totaling about 700,000 yuan; The two expenses * * * are about 6.5438+0.33 million yuan.

The source of construction funds is mainly self-raised by coal mining enterprises, and at the same time, the provincial government will strive for matching funds of 500,000 yuan. At the initial stage of construction, the average fund-raising per mine was 65,000 yuan, totaling 6.5438+0.3 million yuan. After the completion of the construction and acceptance by the provincial coal industry authorities, actively strive for matching funds from the provincial government, and then distribute subsidies to coal mining enterprises on an average basis according to the availability of matching funds.

In order to ensure the timely completion of the project, the winning bidder of the project paid a deposit of 654.38+10,000 yuan before the construction (returned after the trial operation of the monitoring system). After the winning bidder of the construction project is determined, the construction unit shall pay 30% of the project cost to the winning bidder; Considering the maintenance of monitoring equipment, after the project is completed and accepted, the construction unit will pay 40% of the project cost of the winning bidder; The remaining amount will be paid after one year of trial operation.

Implementation steps of intransitive verbs

1, investigation and demonstration stage. From April 20th to the beginning of June, leaders in charge of coal-producing villages and towns and related technicians were organized, led by leaders in charge of the county government, to inspect the remote monitoring system of coal mine safety in surrounding coal-producing counties and cities, fully drawing lessons from the successful experience of previous construction projects, and combining with the actual situation of coal mines in our county, the construction standards and modes were put forward, and the construction scheme of digital remote monitoring system of coal mine safety in Yifeng county was put forward.

2. Publicity and start-up phase. In mid-June, a mobilization meeting was held to publicize the relevant policies of the national gas control battle, convey the spirit of the relevant meetings of provincial and municipal authorities, learn from foreign experience and practices, and arrange the preparations for the construction of the county-wide coal mine safety remote monitoring system.

3. Full implementation stage. From July to the end of September. (1) Prepare bidding documents, conduct public bidding and determine contractors; (2) Negotiate the construction scheme with the contractor; (3) Pre-construction training, mainly training the monitoring center of county bureau and technical personnel of coal mine; (4) comprehensive installation and debugging stage; (5) on-the-job training.

4. Acceptance and handover stage. 65438+ 10 was completed before 20th, and the monitoring system was put into full trial operation.

5. Daily operation and maintenance expenses after the completion of the monitoring system construction project. The county finance arranges necessary funds every year to solve the maintenance and operation of the central computer room and monitoring system, and the insufficient part is shared equally by coal mines.