Suzhou Luhe RFID security access monitoring system is applied to the construction of the Phoenix Mountain Tunnel of the Guanghe Expressway
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Chapter 1 Introduction
With the rapid development of the country’s economy, my country’s tunnel construction 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 increased operational efficiency, the country is constantly increasing the construction of tunnels; however, the construction cost of tunnels is high and the operation and management are relatively complicated. Therefore, all places attach great importance to the construction of tunnels and dare not take it lightly.
The current remote information management system is often only the management of administrative and technical documents, and cannot obtain construction information in real time, let alone a comprehensive, timely and accurate grasp of the information of the construction site and construction personnel, which has 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 lagging management mode of safety supervision during tunnel construction and realize the modernization, informatization, and intelligence of management has become an important topic for managers to study.
Therefore, advanced management methods such as disaster prevention, accident rescue, and information management will be an inevitable choice for the safe construction of tunnels.
1.1 Company advantages
Suzhou Luhe Electronic Technology Co., Ltd., with the application of tunnel safety system as the key research direction at the beginning of its establishment, successfully developed the “LOHO-ITMS Tunnel Personnel Safety System”, which was successfully applied in the market and achieved quite good results. It has won the approval of various tunnel construction units and owners.
The company has more than 30 cooperative enterprises under China Railway, China Construction, and China Communications Group (such as China Railway First Bureau, China Railway Fourth Bureau, China Railway Fifth Bureau, China Railway 12th Bureau, etc.), of which system integrators are not included; Up to 6 railway tunnels have been successfully rolled out and constructed in the whole railway tunnel; a total of more than 200 tunnels have been constructed and used in the excavation, of which two tunnels are counted as two;
The following lists some successful cases (the name of the cooperative unit and the name of the tunnel or the entrance of the tunnel)
Three half-hill tunnels of Hangzhou Qiushi Road in the middle tunnel
China Tunnel Group Hangzhou Qingchun Road Crossing River Tunnel
China Railway 16th Bureau Jianhua Metro Station, Jianggan District, Hangzhou
China Railway 17th Bureau Huzhou Tunnel
Yunjing Expressway Tunnel, Jingning County, Zhejiang Provincial Transportation Engineering Construction Group
Chongqing Fengdu Tunnel, a trolley branch of the Central Tunnel
China Railway 24th Bureau Wuyishan Tunnel, Fujian
Gansu Tianshui Tunnel
Jiangxi Jinggangshan Eling Tunnel, 25th Bureau of China Railway
China Railway First Bureau Fourth Company Menghe Railway, Mengzi County, Honghe Prefecture, Yunnan
China Railway First Bureau No. 5 Company Menghe Railway, Pingbian County, Honghe Prefecture, Yunnan
China Railway 17th Bureau Sichuan Guangyuan Tunnel China Railway 16th Bureau
Shanghai Rail Transit Line 13 Tunnel
Tunnel of the Second Section of the Ganqing Section of the Lanxin Railway in Qinghai Haidong Minhe County, China Railway 18th Bureau
Ganshao Railway Tunnel, Shaoguan City, China Railway Tenth Bureau
China Railway 16th Bureau Shanghai Qingcao Shaling Bridge Branch C3 Tunnel
China Railway 17th Bureau Suzhou Light Rail Line 1 and 2 Tunnel
2.2 System introduction
This system focuses on the automatic identification of the entry and exit of construction personnel, instead of the management of “manually flop into the hole”. It also comprehensively manages various resources of the tunnel, and uses advanced technology to integrate and utilize the system under the premise of ensuring the normal application of the established system functions, including personnel entry and exit management, LED large-screen display, etc. Maximize the use of resources to upgrade tunnel work and management to a more sophisticated management platform.
3.3 Design principles and basis
Overall design principles
Ensure the safety of the current construction tunnel without affecting the work of the current construction tunnel
Take the customer’s demand as the basic principle, and fully combine the existing mature and perfect technology to design.
The security management system for tunnel personnel entry and exit is an advanced technology involving sensing technology, LED display technology, radio frequency identification technology and other fields. Therefore, the overall plan design must be reliable, safe, advanced, flexible, expandable, and economical. , The convenience of operation and maintenance requires a forward-looking construction of a unified management platform for the overall situation.
In the planning and design process, the system design aims at ensuring safe production, improving enterprise efficiency, and improving the quality of enterprise management, and takes high-quality service managers and users as the basic principles and design ideas.
Hardware design principles
The hardware design and selection of the system should follow the following principles:
Advancement: System hardware should be advanced to avoid low performance or premature elimination of the entire system due to obsolete technology in the short term.
Reliability: While fully considering the advanced nature, the hardware system should be based on the specific needs of users for the entire system, and should give priority to advanced, applicable and mature technologies to maximize investment benefits.
Openness: The choice of computer network and related products should be based on advancement and applicability, while considering compatibility.
Expandability: The system data acquisition equipment adopts modular structure and bus communication mode. When the system scale is expanded, no major transformation is required, and the corresponding modules can be added.
Software design principles
The software design and selection of the system should follow the following principles:
Reliability and safety: The system software should have high reliability and safety.
Ease of use: The system software should be easy to operate, using a Chinese graphical interface.
Standardization: The system software should comply with national, industry standards and international standards to facilitate multiple upgrades and support for new hardware products.
Scalability: The system software should be expandable. Adopting object-oriented structure design, it has certain flexibility, operability and expansibility. When the business changes in the future, the addition of modules and the modification of modules should not affect other modules.
In order to ensure the quality of the entire project, the overall plan design principles need to achieve the above-mentioned reliability, safety, advancement, flexible expansion, economy and practicality, and the convenience of operation and maintenance are highly unified.
Design basis standard
Design standards, based on strict compliance with relevant national or ministries or local implementation standards
GB/T 2887-2000 General Specification for Computer Sites
YD/T 1666-2007 Security Technical Requirements for Remote Video Monitoring System
GB 10111-1988 Random sampling method using random number dice
GB/T 12758-2004 General technical conditions for urban rail transit signal system
YD 5079 Telecommunication Power Supply Engineering Installation Specification
GBJ79-1985 Industrial Enterprise Communication Grounding Design Code
GB50168-92 Code for Construction and Acceptance of Cable Lines of Electrical Installation Engineering
GA/T75-94 Security Engineering Procedures and Requirements
GA/74-94 Safety Protection System Applicable Graphic Symbols
GB50054-95 Low Voltage Power Distribution Design Code
YD/T926-2001 Standard of the Ministry of Information Industry
Ethernet 10Base-T standard
Ethernet 100Base-T standard
Our unit’s comprehensive management, construction technology, technical level, and experience in the construction of similar projects and results of construction methods, etc.
Chapter 2 System Composition and Working Principle
1.1 System composition
The tunnel integrated application system mainly consists of a personnel entry and exit management system, an LED display system and a communication system.
Personnel entry and exit management system automatic identification management of entry and exit
System remote management
LED display system LED large screen display
Communication system network transmission part
Wireless transmission part
Other cable transmission parts
2.2 System application overall platform expansion architecture
◇ Based on the local system, realize the data communication of each functional module;
◇ Can have a remote center, which can query the relevant security information of the current tunnel in real time;
◇ Adopt a three-tier system architecture including front-end work point monitoring, intermediate communication layer, and background scheduling monitoring
◇ Front-end work point monitoring (personnel entry and exit positioning management system, video surveillance, personnel/vehicle access control management) and background dispatch (remote central computer room, server and some external docking platforms) adopt B/S application architecture.
3.3 Personnel Entry and Exit Positioning Management System
The personnel entry and exit management system is mainly for personnel entry and exit information management. Mainly include monitoring host, card reader base station, personnel identification card, transmission data interface converter, etc.
Monitoring host (field server): an independent computer, responsible for the management, communication, statistical storage of the entire system equipment and personnel detection data, as well as screen display, query printing, screen editing, network communication and other tasks.
Card reader base station (card reader): collect and receive personnel card information in real time and feed it back to the system in real time through the communication line. It can be divided into positioning base station and identifying base station.
Personnel identification card: programmed with a globally unique identification code, which is only provided to the card reader base station for identification. It is generally installed on a safety helmet or worn on the body, health certification, safe and reliable
Transmission data interface converter: including some signal converters, which mainly realize the conversion of signals so that the system can better receive and process data
The general schematic diagram is as follows
Access system: Two card readers are installed in each construction tunnel entrance. One card reader is installed at the entrance of the tunnel entrance, and the other card reader is installed 200 meters inward from the entrance of the tunnel (not less than 100 meters is recommended when the tunnel is insufficient), and then it is provided for every construction worker or related need to enter and exit Personnel electronic tags are installed on the helmets of the tunnel personnel. When personnel wearing helmets enter and exit the tunnel, the signal emitted by the built-in electronic tag can be obtained by the card reader. The card reader judges the entry and exit status of the construction personnel according to the sequence of reading the card, and when and when the construction personnel enters and exits the tunnel. The number of workers leaving the tunnel can be reflected in the system software. At the same time, the large-scale LED screen installed on-site can display the information of the relevant personnel entering and exiting the tunnel on the large screen, making the situation of the tunnel entry and exit personnel clear at a glance. The construction personnel wear the system attendance card on the inside of the helmet, which can realize automatic attendance without actively swiping the card, which is convenient, labor-saving and highly accurate.
4.4 LED display system
It is better to install the large LED screen near the construction entrance, close to the gatehouse or the duty room, to display the information of subway construction personnel in real time, so that the management is advanced and transparent. The displayed content includes: tag number, name, time, total number of people, etc., so that leaders and supervisors do not need to go under the tunnel or check the computer in the monitoring room to know the situation of the tunnel construction personnel in time. With the LED large-screen display system, not only can the information of the construction personnel in the various areas of the cave be visualized, intuitively, and clearly reflected. Moreover, during the on-site meeting, various welcome slogans and promotional slogans can also be displayed on the big screen; in normal times, the construction staff can be reminded to pay attention to construction safety through the big screen, and warm reminders can be promptly provided in severe weather such as high temperature and frost. . These can fully reflect the humanization, modernization and scientific management of the tunnel construction project department.
System composition: server, synchronization system card, LED display
Server: Mainly realize the editing and control of the displayed content
Synchronous display system card: the core part of the system, realizes the display content of the computer and the LED screen simultaneously.Compile and transmit the signal
LED display screen: assembled by modules composed of 32X16 led light dots (P10 single red) array, the size of the assembly can be selected according to the actual situation
Schematic diagram of LED large screen system
Chapter 3 System Features
1.1 Core features
This system follows the principle of “unified card issuance, unified equipment, unified management”, and the system of “one person, one card” is implemented for the staff and teams in the tunnel, and the sensor can be regarded as a “post certificate” or “tunnel access card” “It can also cooperate with relevant systems and policies in order to better utilize the advantages of the system.
(1) Automatic flop:
The construction personnel do not need to manually turn the cards in and out, and the in and out are automatically registered;
(2) Automatic card swiping:
The construction personnel do not need to manually swipe the card when entering and exiting, and it is fully automatic identification;
(3) Real-time online:
Real-time online display of construction personnel entering and exiting, easy and convenient to view;
(4) Historical query:
Construction personnel’s entry and exit records are recorded throughout the entire process, and historical information can be retrieved at any time
The historical storage data is small in size and can normally be stored for more than one year or longer;
(5) Report printing:
The entry and exit records of construction personnel can be printed out as required for backup query
(6) First aid after disaster:
Once a related accident occurs, the host computer can immediately display the information of the current tunnel personnel, which can improve the rescue efficiency and rescue effect;
(7) Other expansion functions (customizable):
Personnel positioning;
Vehicle management;
Locate the trajectory;
Hazardous area limit entry alarm
Hazardous gas monitoring
2.2 System characteristics
1. High safety and stability: health qualification certification, with the characteristics of explosion-proof, dust-proof and anti-interference
2. Fast recognition of multiple cards: 100 card information can be recognized at the same time within a range of 50 meters, and the recognition speed of objects can reach 200 km/h
3. Strong adaptability: it can cooperate with various transmission networks such as light intensity, Ethernet, 485 bus, etc.
4. Abundant query reports: It is convenient for management personnel to operate to the greatest extent
5. Remote access: You can remotely view the real-time situation of a tunnel on any computer that can access the Internet without going to the scene.
6. Strong visibility: through the external large LED screen display, you can know at any time how many people are in the cave and who these people are
Chapter 4 Software Functions
1.1 Overview
The tunnel personnel entry and exit management system software is independently developed by the company. Using the current advanced VC.net development platform, combined with powerful SQL SERVER database.The network monitoring software based on the B/S structure can browse, query, and print relevant information such as the location of construction personnel and attendance management on the network through the IE browser. At the same time, according to the different permissions, the restricted operations under the relevant permissions can be performed to ensure Stable system operation
2.2 Function description
At present, the safety entry and exit management system for tunnel personnel integrates the four functions of personnel entry and exit management, positioning management, historical track query and LED display. It can monitor the dynamic distribution, quantity and location of personnel and other monitored objects inside the tunnel in real time. At the same time, it has functions such as selective tracking, real-time tracking, location query and personal positioning.
Selection tracking: select specific personnel such as various departments and types of work, and grasp their working conditions on the spot
Real-time tracking: real-time display of the location status and origin of each person inside the tunnel.Can clearly reflect its activities
Location tracking: select a monitoring segment or monitoring point, you can display the distribution of people or vehicles in this area
Personal positioning: display the movement trajectory of a specific person and display its historical movement direction
Attendance statistics function
Through the records and statistics of the staff entering and exiting the tunnel, as well as the stay working time in each area of the tunnel, complete the attendance information query and statistics of the individuals, departments and cadres in the entire district
Output various information reports according to requirements (such as: time report, attendance monthly report, etc.)
LED large screen display
Synchronously display the monitoring data of the system, which is more direct and vivid
Abundant program arrangements can be carried out, highly user-friendly
Easy to use, easy to understand, convenient and quick to operate
Staff management function
Staff management function: add, delete, modify and query staff
Hardware information management function: manage the card reader base station and substation names, and enter the personnel identification card information
Real-time alarm function
It has the functions of real-time display of alarm information and historical alarm query. The alarm content includes important content such as card reader base station failure, insufficient card battery power, overtime in dangerous areas, intrusion into restricted areas, etc.
Safety monitoring function
Track the movement trajectory of safety monitoring personnel in the tunnel, record their stay time in each area and each monitoring point, so as to ensure the strict implementation of safety monitoring work
Regional prohibition management function
When unauthorized personnel enter some important places or dangerous places and other prohibited areas, the system will give prompts and warnings, and save relevant information records at the same time
Emergency handling function
In the event of an emergency in the tunnel, the system can count the missing persons in time, query the information of persons near the accident site, and quickly determine the accurate location of the persons, so as to carry out search and rescue work in a timely and effective manner
Historical data query and report printing function
Long-term storage of tunnel personnel location, personnel tracking, attendance statistics, safety monitoring management, system operation management and other information can be stored, and historical records can be easily inquired.
Can query and print information according to time, department, etc.
Information networking function
By establishing a WEB server, information sharing can be achieved by browsing web pages. The client does not need to add any additional software, and provides WEB browser access, ensuring that remote users can timely understand and grasp the actual situation on the spot, and arrange future production work. guide
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