System Introduction In recent years, mine accidents have occurred from time to time, how to strengthen preventive measures for safe production, how to correctly handle the relationship between safety and production, safety and efficiency, how to accurately perform coal mine safety monitoring functions in real time and quickly, and ensure rescue and relief, and safe rescue. The efficient operation has been placed before the authorities and leaders of all levels of the country. At the same time, how to change the current management pattern of underground mines for underground personnel, how to achieve modernization and information management has become a concern for all mine companies. We believe that it is imperative to establish informatization and intelligentization with the main goals of disaster prevention, accident assistance, and electronic information management.
The basic functions implemented by the above-mentioned scheme in downhole personnel management include:
1. Real-time display and query of downhole conditions based on ZigBee technology:
1. How many people are in a well or a place at any one time and who these people are.
2. The trajectory of each person's activity at any time downhole.
3. Query the actual location of one or more people now, so that the dispatch center can quickly and correctly contact the person.
4. Query a series of information about the arrival/departure time and total working time of the relevant personnel at any place, and can supervise and implement whether the major inspection personnel conduct testing and processing of various data on time and at the point, and try to prevent as many as possible. Related incidents due to human factors.
5. Multi-point sharing can be achieved for multiple leaders to view at different locations at the same time;
Secondly, the underground personnel shall dynamically distribute the real-time dynamic distribution of the tunnels, and make corresponding dynamic maps according to the actual geography of the underground wells, so as to make the underground situation vivid and vivid;
Third, automatic statistics of various types of personnel down the various statements are as follows:
1, production personnel down time report, attendance monthly report, overtime report, leave or absenteeism report management and other necessary basis and can generate salary statements.
2. Formulate and report the inspection report of management personnel and so on.
3, other personnel such as visits, inspection personnel are required to the designated area.
4. In the event of various types of accidents, how many people can be found immediately in distress and where are the persons in distress? Who are they?
V. The use of mobile identification devices in emergency rescue can more accurately and quickly identify specific locations and locations of persons in distress and improve the efficiency and effectiveness of rescue operations.
Features implemented in device management include:
First, the specific real-time location of vehicles and other important equipment Secondly, count the number of times and frequency of transportation of each ore car every day for easy management.
system introduction
1. System Features â—† Highly automated â—† Advanced network communication system â—† Real-time information display and query system based on ZigBee technology â—† Complete data analysis system â—† Safe, reliable, working in harsh environment for 24 hours â—† Extremely high anti-collision , using a variety of anti-collision programs, can identify more than 200 logos.
â—† Easy installation and integrated design.
â—† Intelligent, bi-directional high-speed data exchange between the ID card and the transceiver enables flexible application and data security.
◆ High reliability, adapt to mine working environment (-20°C-65°C), waterproof and shockproof.
â—† Ultra-low power consumption, healthier and safer.
â—† Globally open ISM microwave band, no need to apply for and pay.
â—† High anti-interference, no special requirements for various interference sources on site.
2. System working principle Firstly, a number of signal transceivers are placed in the tunnels and all the channels that may be passed by the personnel. The specific quantity and location are determined according to the actual working conditions on the site and the functional requirements to be achieved. They are independent grid technologies of ZigBee. Networking with ground control centers.
At the same time, each downhole person wears an identification card. When the downhole person enters the downhole, as long as they pass through or approach any of the signal transceivers placed in the tunnel, the signal transceiver will immediately sense the signal and upload it to the computer of the control center immediately. On the computer, the computer can immediately determine the specific information (such as: who, where, at a specific time), at the same time it is displayed on the control center's large screen or computer display and backup, administrators can also be based on large The map on the screen or on the computer is clicked on a certain location in the underground, and the computer will count and display the personnel status in this area. At the same time, the computer of the control center will sort out the attendance reports for each person going down during this period according to the personnel access information for a period of time (eg, attendance rate, total attendance time, late/early withdrawal record, and not attendance time, etc.).
In addition, once an accident occurs underground, the situation of the person at the accident site can be immediately detected according to the personnel distribution information in the computer. Then a special detector can be used to further determine the position of the person at the accident so as to help the rescue personnel to rescue them in an accurate and rapid manner. Trapped people. The management principles of mine cars and other equipment are roughly the same.
4. Principles of system design (1) Effective identification of entry and exit of working personnel in underground tunnel work surfaces, fully embodying “humanization, information, and high automation†in system management. Provides senior management with time and attendance and personnel access restrictions. Information query. In the event of a safety incident, the number of workers in the pit working face can be immediately known through the system, ensuring efficient operation of rescue and disaster relief work and safety and ambulance work.
(2) After the occurrence of a safety accident, through the system's mobile identification device, it can detect whether someone is present within 10 meters of the accident site and facilitate the timely deployment of the rescue work.
(3) System design security, scalability, ease of maintenance and ease of operation.
5. System design features (1) Highly automated. The system can automatically detect the time and location information of underground tunnel workers passing through the monitoring point, and automatically realize the statistics and management of attendance operations.
(2) Advanced communication system. The identification system installed in the downhole channels transmits the data passed by the relevant personnel to the network server in real time without human intervention during the entire process.
(3) Complete data statistics and information query software. The system software has a dedicated database management system, including information gathering and statistical analysis systems for workers through tunnels, statistics and management analysis systems for attendance operations, and displaying and printing various statistical reports, providing comprehensive services for the management and query of senior management personnel. .
(4) System security, stability and reliability design. The system product adopts a tunnel wall-mounted design, which does not require on-site construction in the tunnel, and ensures that the system operates continuously in a harsh environment for 24 hours;
(5) Complete exceptions (including identification card, invalid identity card entry) alarm call system configuration.
6. System design plan The system follows the principle of "unified identification card, unified equipment, and unified management". The "one-person-one-identity-identification card" system is implemented according to the licensed personnel and the team. The identification card can be regarded as the certificate of employment. "Or" access permit." The specific plan is as follows:
(1) The mine production unit installs a certain number of signal transceivers in all tunnels. The specific location is determined according to the site conditions to meet the radiation area.
(2) Mine production units issue identification cards to relevant personnel.
(3) The basic information of the employee corresponding to the ID card, including name, age, gender, affiliation, type of work, job title, and photo of himself/herself, is registered in the system database.
(4) The production safety department will take effect after authorizing the ID card. The scope of authorization includes: the employee can be qualified to enter the pit of the work surface, the identity card's timeliness, invalidation, report loss, etc., to prevent unrelated personnel and illegal personnel from entering the tunnel;
(5) Personnel entering the tunnel must wear an ID card. When this person passes through the identification and monitoring point of the tunnel, it is immediately recognized by the system, and through the information exchange of the system network, the information such as the road section and time passed by this person is transmitted to the Inoue Safety Monitoring Center for record, and can also be displayed on the geographic information screen at the same time. A message appears on the wall, showing the person’s name. If the sensed ID card number is invalid or enters the restricted channel, the system will automatically alarm. The safety monitoring center staff on duty receives the alarm signal and immediately executes the related safety work management program.
(6) Once a safety accident occurs in the tunnel, the safety monitoring center can know the basic situation of the trapped person at the first time. The rescue team uses the mobile long-distance identification device to facilitate the detection of the location of the person in distress within a certain range, facilitating the rescue. Work safely and efficiently.