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1. System background
With the rapid development of the country’s economy, my country’s tunnel construction is changing with each passing day. Because urban subways, railway tunnels and highway tunnels have improved route technical indicators, shortened distances and travel time, and increased operating efficiency; coupled with the high cost of tunnels and relatively complicated operation and management, all regions attach great importance to the construction of tunnels.
The current remote information management system is often only the management of administrative and technical documents, and cannot obtain real-time construction information, let alone a comprehensive, timely and accurate grasp of the construction party’s information and construction personnel. This led to many accidents. For this reason, governments at all levels attach great importance to the safety of production in engineering construction and adopt a series of measures to continuously strengthen safety in production. How to change the current management mode of the backward safety management of the tunnel construction process and realize the modernization, informatization, and intelligence of management has become an important topic for managers.
Therefore, the use of advanced management methods such as disaster prevention, accident rescue, and electronic information technology is an inevitable choice for the safety management of tunnel construction. In response to the above situation, Suzhou Mulan Electronic Technology Co., Ltd. puts forward the “solution of tunnel personnel attendance and positioning system”, which provides a brand-new safety management concept for the safety management of tunnel construction.
2. System overview
Tunnel personnel attendance and positioning system is a combination of tunnel construction personnel attendance, regional positioning, safety early warning, post-disaster first aid, daily management and other functions. It is also a domestic technology-leading, stable operation, and professionally designed tunnel construction site monitoring system. Enable managers to keep track of the distribution status of personnel and equipment on the construction site and the movement trajectory of each personnel and equipment, facilitating more reasonable scheduling management. When an accident occurs, rescuers can also quickly understand the location of relevant personnel based on the data and graphics provided by the tunnel construction personnel and equipment location monitoring safety management system, and take corresponding rescue measures in time to improve the efficiency of emergency rescue work. The realization of this scientific and technological achievement will provide a strong guarantee for the safe production and daily management of tunnel construction to a new level.
Three, system composition
SDML-Tunnel personnel attendance and location management system is divided into tunnel exterior and tunnel interior:
Four, system characteristics
Outstanding performance
High recognition reliability, 100% front-end recognition rate
Long recognition distance (2-50 meters)
Very high anti-collision performance (each detection point can identify up to 200 people at the same time)
High recognition stability (error rate is less than one hundred thousandths), truly achieve no errors and no missing cards
Fast recognition speed (the fastest recognition speed can reach 200 km/h)
Wide range of applications
In line with the existing network conditions of the tunnel, it can provide multiple tunnel-to-tunnel transmission methods based on optical fiber, Ethernet, communication cable, etc., which has strong adaptability and avoids the difficulty of implementation due to a single transmission method.
High safety and stability
With safe explosion-proof, dust-proof and waterproof performance
High anti-interference, no special requirements for tunnel interference sources and perimeter environment, strong environmental adaptability
The internal circuit is highly integrated, the device failure rate is minimized, and the operation is reliable
Using active identification card, no electromagnetic pollution, maintenance-free, safe to use
Simple and convenient operation
Directly import the original CAD drawing of the mining area, easy to operate, no need to redraw the mining area map; ensure that the displayed graphics are in the same proportions as the original drawings of the customer
The software has a full Chinese menu with a good operation interface
The integrated structure design of the wireless monitoring sub-station does not require an external antenna or ground sensing coil, which is convenient and quick to install
The built-in battery of the identification card, ultra-low power consumption, no external miner’s lamp power supply, no need to charge
Rich query and report functions
Query and report output, printing functions are simple and easy to operate
Can query the attendance information of construction personnel, departments and cadres
Can query the construction personnel’s movement trajectory
Various information reports can be output as required (such as: tunnel entry time report, personal attendance daily report, construction worker attendance monthly report, department attendance monthly report, etc.)
Five, working principle
① Install the SDML controller in the area where people need to be tracked in the tunnel. It maintains communication with the ground central station through the RS485 data bus, and uses a three-way junction box at the joint, and is powered by an external flameproof uninterruptible power supply.
② The SDML explosion-proof card reader is connected to the owned SDML controller through the RS485 bus, and the power is supplied locally.
③ People entering the tunnel wear SDML security identification card (the card is installed on the staff’s protective cap or carried on the key chain), and the SDML security identification card worn continues to emit 2.4G radio signals. The wireless signal is The code of each identification card is unique.
④ The SDML explosion-proof card reader receives the signal sent by the SDML safety identification card within the effective measurement range, and sends it to the data monitoring substation through the RS485 interface, and then the data monitoring substation sends it to the outside of the tunnel for recording and display.
⑤ The card reader at the entrance and exit of the tunnel receives the signal sent by the SDML security identification card and sends it to the data monitoring sub-station through the RS485 interface, so as to realize the attendance of the staff.
⑥ The ground center station judges the specific information of the SDML security identification card (such as: who, where, and the specific time) according to the installed mine attendance and location management software, and can display the information on the large screen of the control center or computer display at the same time Screen, and make a backup.
Six, system function
1. Dynamic display function
★ Query and display the identity, quantity and distribution of personnel and equipment in a certain area at any time.
★ Query the current actual position and activity track of one or more personnel and equipment.
★ Record a series of information such as the arrival/departure time and total working hours of relevant personnel and equipment at any location, and can supervise and implement whether important inspection personnel (such as: safety inspection personnel) conduct on-site inspections on time and on-site, or conduct various inspections. The detection and processing of items of data will fundamentally prevent related accidents caused by human factors.
2. Multi-point sharing of information
The system central station and network terminals can be operated in a local area network, so that all terminals on the Internet can share information at multiple points within the scope of use authority, so that multiple departments and leaders can share monitoring information, system comprehensive analysis information, and query various data at different locations at the same time. Report.
3. Set the alarm function
The system can set up warning areas according to the needs of construction management. For example: when blasting in a tunnel, set the blasting work surface as a guard zone. If unauthorized personnel and equipment enter the guard zone, the system will automatically alarm and display the identity of the personnel and equipment entering the guard zone. The alarm will be cancelled after the blasting is over set up.
4. Query statistics
★ Inquiry of construction personnel: Inquire about the current area, detention time and leader of the construction personnel entering the tunnel according to the custom combination conditions.
★ Query of Worker Distribution: Query the distribution of construction personnel in each area of the tunnel, so that managers can easily know the number of workers in a specific area. Click on the corresponding area to get detailed information about the relevant personnel.
★ Non-arrival area query: used to inspect and assess the situation of relevant responsible persons and follow-ups, and to inquire whether a special type of work has reached all areas of its work range. Click on the relevant status to get the detailed records of the arriving personnel and work.
★ Statistics of construction personnel: The number of construction personnel entering and exiting the tunnel can be counted according to the date.
★ Regional population statistics: You can arbitrarily set and manage related construction areas, and automatically perform regional population statistics.
5. Attendance management
★ Department Attendance Inquiry: The attendance status of personnel can be inquired according to the department and various specified conditions, such as: number, name, shift, type of work, department and other query conditions; it can be automatically sorted according to any conditions;
★ Employee Attendance Inquiry: The attendance status of personnel can be inquired according to various specified conditions, such as: number, name, shift, type of work, department and other query conditions; it can be automatically sorted according to any conditions;
★ Cadre Attendance Inquiry: Query and display the attendance of all cadres on the day;
6. Post-disaster first aid information
Once a safety accident occurs, the control host can immediately display the number of personnel, personnel information, personnel location and other information at the accident site, which greatly improves rescue efficiency and rescue effectiveness
Seven, software function
The software functions for the Hangzhou River Crossing Tunnel mainly include: personnel management (personnel, user, department), attendance data statistics (daily statistics, monthly statistics), personnel information editing (add, modify, delete), personnel query (all queries, conditions) Inquiry), data backup and restoration, etc. (If necessary, we can modify, add and delete software related functions according to the needs of users, please contact us).
8. Introduction of main equipment
1. SDML controller
2. SDML card reader
3. Directional antenna for attendance
4. SDML security identification card
9. Contact us:
Mailing address: 505, Building 1, Industrial Building, No. 625, Binhe Road, High-tech Zone, Suzhou, China
Telephone: (86)-0512 -87655880
Fax: (86) -0512-87655879
Mailbox: [email protected]
Q Q: 909458011 392061642
MSN: [email protected]
Website: http://www.mlrfid.com
Contact: Bai Chunyu Hui Gang
10. After-sales service:
Suzhou Mulan Electronics Co., Ltd. promises to
1. Lifetime maintenance is free and technical guidance is provided. Once a failure occurs, the equipment can be quickly replaced; if it exceeds one year, the corresponding cost will be charged.
2. Help solve the fault within 7 working days (in case of force majeure, it can be negotiated); provide remote technical guidance within one working day after receiving the repair request;
3. The overall construction period of the system can be completed within 30 working days
4. If you are not satisfied with the current system, we can tailor products for you with short cycle, low price and good quality.
Successfully applied:
China Railway Tunnel Group Hangzhou Qingchun Road Crossing River Tunnel
Screenshot of the data part of the LED attendance display in the tunnel
11. Copyright Statement
The copyright of this technical solution belongs to Suzhou Mulan Electronic Technology Co., Ltd. Without written permission, no institution or individual may quote it in any form, otherwise Suzhou Mulan Electronic Technology Co., Ltd. reserves the right to pursue legal responsibility. Hope to cooperate sincerely!
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