Successful Cases China Coal Construction Shanghai Branch Hangzhou Tunnel Jianhua Subway Station Project, China Railway No. 17 Bureau Group Huzhou Tunnel Project, China Railway Tunnel Group Three Hangzhou Qiushi Road Tunnel Project, Hangzhou Jianggan District, Hangzhou Qingchun Road Cross River Tunnel Project, Zhejiang Province Traffic Engineering Construction Group Yunjing High-speed Tunnel Project, China Railway Tunnel Group Co., Ltd. Trolley Branch Chongqing Tunnel Project, China Railway Twenty-four Bureau Fujian Wuyishan Tunnel Project, Gansu Tianshui Tunnel Project, China Railway 25th Bureau Jiangxi Jinggangshan E-ling Tunnel Projects, etc.
System Introduction The tunnel safety management system integrates tunnel construction personnel attendance, regional positioning, video surveillance, LED screen display, safety warning, incoming personnel alarm, post-disaster emergency, day-to-day management and other functions. It is also a leading domestic technology, stable operation, and professional design. Tunnel construction site monitoring system. With the aid of the system administrators, the distribution of on-site construction personnel and equipment, as well as the movement trajectory of each person and equipment can be easily and quickly handled, facilitating more reasonable dispatch management and safety monitoring and management. When there is an accident, rescue workers can quickly understand the location of the relevant personnel according to the data and graphics provided by the system, and take appropriate rescue measures in time to improve the efficiency of emergency rescue work. The realization of this scientific and technological achievement has prompted the safety production and daily management of tunnel construction to a new level.
Implementation Significance The implementation of the tunnel safety management system can realize disaster prevention, accident relief, and safe construction, realize intelligent, information, and safe personnel management, promote the smooth and safe completion of tunnel construction, and also improve the management image of leaders. , show modern scientific management level.
Successfully Applied Software Functions The tunnel security management system can not only realize attendance or positioning, but also realize both attendance and positioning functions. And the system software we designed the installation version and network version, both for on-site monitoring can also achieve remote monitoring, greatly meet the different needs of different users.
The specific tunnel safety management system program is as follows
1, system background
With the rapid development of the country’s economy, the construction of our country’s tunnels is changing with each passing day. As urban subways, railway tunnels and highway tunnels have improved route technical indicators, shortened distances and travel time, and improved operational efficiency; coupled with high tunnel construction costs and relatively complex operations and management, local governments have attached great importance to the construction of tunnels.
The current telematics management system often only manages administrative and technical documents, and cannot obtain construction information in real time, nor can it have a comprehensive, timely, and accurate grasp of construction party information and construction personnel. As a result, many accidents occurred. For this reason, governments at all levels attach great importance to the issue of safe production of engineering construction and adopt a series of measures to continuously strengthen work safety. How to change the current management model of the safety management of the tunnel construction process and realize the modernization, information, and intelligence of management has become an important topic for managers.
Therefore, the use of advanced management methods such as disaster prevention, accident assistance, and electronic information is an inevitable choice for tunnel construction safety management. Suzhou Mulan Electronic Technology Co., Ltd. proposed the “solution for attendance positioning system for tunnel personnel†to provide a new safety management concept for tunnel construction safety management.
1.2 System IntroductionThe tunnel attendance location system is a tunnel construction site monitoring system that combines the functions of tunnel construction personnel attendance, regional positioning, safety warning, post-disaster first aid, and daily management, as well as a domestic technology leading, stable operation, and professional design. The management personnel can keep abreast of the distribution of personnel and equipment at the construction site and the trajectory of each person and equipment, facilitating the more reasonable dispatch management. When an accident occurs, rescue personnel can also monitor the data and graphics provided by the safety management system according to the position of the tunnel construction personnel and equipment, quickly understand the position of the relevant personnel, and take appropriate rescue measures in a timely manner to improve the efficiency of emergency rescue work. The realization of this scientific and technological achievement will provide a powerful guarantee for the safe production and daily management of tunnel construction to a new level.
2 system composition2.1 The tunnel staff attendance location management system is divided into the outside of the tunnel and the internal components of the tunnel:
Outside the tunnel
Outdoor monochrome display
RS485 converter
Hosts
LED display
Signal lightning protection grid
Fiber Converters
UPS backup power
Alarm
Inside the tunnel
Time attendance reader
Directional antenna
Positioning card reader
Security identification card
Fiber Converters
Switching power supply
Transmission section
optical fiber
RS485 line
Serial line
2.2 Composition instructions
Host: Installed in the monitoring room not far from the tunnel, the computer should always be powered. If there is a power outage, use a backup power supply with attendance and positioning software. Connect to the terminal through the serial port.
RS232/485 converter: Convert the serial port information to 485 signal. Connected to the computer via a serial cable.
Lightning protection grid: In order to protect the terminal equipment, a lightning protection grid is installed near the equipment.
RS485/fiber converter: When the transmission distance exceeds 1000 meters, an optical fiber converter is used to transmit data through the optical fiber. Reader terminals through RS485 to fiber. Finally, the data is transmitted to the host.
2.3 Principle of composition12.4G Active RF Cards: Construction workers or staff carry them with them, usually on the belt of a construction worker or on a safety helmet. Because it is a two-way communication, the construction personnel can send information to the monitoring center. The monitoring center can also send information to each construction.
For example: When there is a special situation in the tunnel, the construction staff just press the button, the monitoring center will have an alarm sound. When the monitoring center has something to do with it, the monitoring center can send a signal to each construction worker, and it can also be sent in masses to be prompted by the indicator light.
2 attendance card reader: Installed in the tunnel mouth, to install two, by reading the card in order to determine whether the construction personnel is entering or going out, the attendance machine reads the tag information, the information is transmitted to the computer.
3 positioning reader: Install the tunnel, according to the actual situation after a certain distance to install the reader near the construction point. The positioning reader transmits the read information to the computer through the optical fiber.
4 Fiber Converters: Inverting 485 Signals and Fiber Signals to Increase Transmission Distance
5RS232/485 converter: convert the RS485 signal of the terminal into the serial signal received by the computer.
6 Computer hosts: Install management software and monitor construction personnel through computers. Control LED screen display content.
7 LED display: The construction personnel's information is displayed on the screen.
3, system features
3.1 Excellent performance
★ High degree of recognition reliability: 100% front-end recognition rate, construction personnel only need to carry 2.4G active RF card (unless broken), can be read in a nearby reader.
★ Recognition distance (0-50m): A stable distance of 50M can be achieved in the tunnel. The tagcard information will be read in this range.
★ Extremely high anti-collision: Up to 200 construction workers can be identified at the same time in each inspection site
High degree of identification stability (error rate is less than one in 100,000), truly no error, no leakage.
★ Fast recognition speed (up to 200 km/h recognition speed): It is also able to recognize dynamic tag cards.
★ can be made into a two-way alarm function: construction personnel can use the label button to call the monitoring center; monitoring center can also send information to the label.
3.2 Wide range of applicationsWith the existing network conditions of the tunnel, it can provide a variety of in-tunnel-to-tunnel transmission methods based on optical fiber, Ethernet, communication cables, etc., with strong adaptability and avoiding the difficulty of implementation due to a single transmission method.
3.3 Security and stability★With explosion-proof, dustproof and waterproof performance
★ High anti-interference, no special requirements for the source of the tunnel interference, the surrounding environment, strong environmental adaptability
★ The internal circuit is highly integrated, the device failure rate is minimized, and the operation is reliable.
★ Active identification card, no electromagnetic pollution, maintenance-free, safe to use
3.4 Simple and convenient operation★ Directly imported into the mine floor plan, the operation is simple; ensure that the displayed graphics are consistent with the customer's original map
★Software full Chinese menu with good interface
★Integrated structure design of wireless monitoring substation, no need for external antenna or ground coil, easy installation
★ Identification card built-in battery, ultra-low power consumption, no external miner's lamp power, no need to charge
3.5 Rich Query and Report Functions★ Query and report output, printing function is simple and easy to operate
★ Check the attendance information of construction personnel, departments and cadres
★ can query construction workers movement trajectory
★ Various information reports can be output according to requirements (such as: entering tunnel time report, personal attendance report, construction attendance monthly report, department attendance monthly report, etc.)
4, system function
4.1 attendance management function
★ Through the attendance card reader can judge whether the construction staff is going to work or off work.
★ Add, modify and inquire about construction personnel and cadre information.
★ Department attendance query: according to the department and a variety of specified conditions for the staff's attendance status query, such as: number, name, frequency, type of work, department and other query conditions; can be automatically sorted by any conditions;
★ Staff attendance query: According to a variety of specified conditions for staff attendance status query, such as: number, name, frequency, type of work, department and other query conditions; can be automatically sorted by any conditions;
★ Cadre Attendance Check: Inquire about the attendance status of all cadres on the day;
4.2 Positioning Management Functions★ Query and display the identity, quantity and distribution of personnel and equipment in a certain area at any time.
★ Check the actual location and activity track of one or more people and equipment.
★ Record a series of information such as the arrival/departure time and total working time of the personnel and equipment at any location, and can supervise and implement whether the major inspection personnel (such as: safety inspection personnel) conduct on-site inspections on time or at the site, or perform various The detection and processing of item data fundamentally eliminate the accidents caused by human factors.
4.3 Setting alarm function
4.3.1 Alien personnel alarm function
The system will automatically report an alarm to an outsider or a cardless construction person entering the tunnel alone. However, when entering with the card carrying person, the system will not alarm.
4.3.2 Area Alarm FunctionSet the alarm function in a specific area and set the authority for the tag card. For example, when blasting in a tunnel, the blasting surface is set as a warning zone. If unauthorized personnel and equipment enter the warning zone, the system will automatically alarm and display the identity of the personnel and equipment entering the warning zone. After the end of the blasting, the alarm is cleared. Settings.
4.4 Query Statistics★ Inquiries by construction personnel: You can search the relevant conditions of the construction personnel's current area, residence time, and shift leader's access to the tunnel according to the custom combination conditions.
★ Workers' distribution query: Inquire about the distribution of construction workers 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 person.
★ Non-arrival area inquiries: to inspect and assess the situation of related persons in charge, and to inquire whether special types of work have reached all areas of their work area. Click on the relevant status to get detailed records of arrivals and jobs.
★ Construction statistics: You can count the number of construction personnel entering and leaving the tunnel based on the date.
★ Regional population statistics: It is possible to set and manage the relevant construction areas arbitrarily, and to automatically conduct regional population statistics.
4.5 First aid information after the disasterIn the event of a safety accident, the control panel can immediately display information such as the number of personnel at the accident site, personnel information, and personnel position, greatly improving the efficiency of the rescue and the effectiveness of rescue operations.