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System background
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 management is 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 leads 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. In response to the above situation, the “Tunnel Personnel Attendance and Positioning System Solution” was proposed, which provided a brand-new safety management concept and strong guarantee for the safe construction of the tunnel.
introduction
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. It enables management personnel to grasp the distribution status of personnel and equipment on the construction site and the movement trajectory of each personnel and equipment at any time, facilitating more reasonable scheduling management and safety monitoring management. When an accident occurs, rescuers can quickly understand the location of relevant personnel based on the data and graphics provided by the system, and take corresponding rescue measures in time to improve the efficiency of emergency rescue work. The realization of this scientific and technological achievement has promoted the safe production and daily management of tunnel construction to a new level.
The tunnel personnel attendance and positioning system can not only realize attendance or positioning, but also realize two functions of attendance and positioning at the same time.In addition, we have designed two installation versions and network versions of the system software, which can be used for on-site monitoring and remote monitoring, which greatly meets the different needs of different users.
System Features
3.1 Excellent performance
★ High recognition reliability: 100% front-end recognition rate. As long as the construction personnel wear the 2.4G active radio frequency card correctly (unless it is broken), it can be installed nearbyCard readerRead it.
★ Long recognition distance (0-50 meters): It can reach a stable distance of 50M in the tunnel, and the information sent by the tag card within this range will be read.
★ Extremely high anti-collision: each detection point can simultaneously identify up to 50 construction personnel’s information.
★ 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, even the dynamic tag card can be recognized.
★ Two-way alarm function: the construction personnel can call the monitoring center through the label button; the monitoring center can also send information to the label. (The function of two-way card, one-way card does not have this function)
3.2 Convenient and wide application
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 are highly adaptable and do not require high on-site environment, avoiding implementation difficulties and problems caused by a single transmission method. bottleneck.
3.3 High security and stability
★ It has safe explosion-proof, dustproof and waterproof performance
★ High anti-interference, no special requirements for tunnel interference source and surrounding 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
3.4 Simple and convenient operation
★ The software has a full Chinese menu with a good operation interface
★ Integrated structure design of wireless monitoring sub-station, convenient and quick installation
★ The built-in battery of the identification card, ultra-low power consumption, no need for an external miner’s lamp power supply, no need to charge
★ The two-way card can replace the battery
3.5 Rich query and report functions
★ Query and report output, printing functions are simple and easy to operate
★ Inquire about the attendance information of construction personnel, departments and cadres
★ Inquire about 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.)
★ The real-time situation of the tunnel can be viewed remotely on any computer with Internet access, without the need to go to the scene. (Online version software function)
★ You can know at any time how many people there are in the cave, who are these people, and they can be displayed on the LED display. The specific display depends on the size of the display.
Attendance management function
★ Through the card reader, it can be judged that the construction personnel are in and out of records at any time.
★ Able to add, modify, and inquire about construction personnel, cadres and department information.
★ Employee Attendance Inquiry: The attendance status of personnel can be inquired by 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;
★ Cadre Attendance Inquiry: Query and display the attendance status of all cadres on the day;
★ Reports can be output according to user requirements
4.2 Positioning management function
★ You can inquire at any time and display the identity, quantity and distribution of personnel and equipment in a certain area.
★ 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 confirm 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 item data fundamentally eliminates related accidents caused by human factors.
4.3 Setting the alarm function
4.3.1 Alarm function for outsiders
For outsiders or construction workers without a card, the system will automatically alarm when they enter the tunnel alone. However, when entering with the card holder, the system will not alarm.
4.3.2 Area alarm function
Set the alarm function in the specific area, and set the authority for the label card. For example, when blasting in a tunnel, set the blasting work surface as a guard area. If unauthorized personnel and equipment enter the guard area, the system will automatically alarm and display the identity of the personnel and equipment entering the guard area, and take corresponding measures in time , After the blasting is over, the alarm setting will be cancelled.
4.4 Query Statistics
★Construction staff query: You can customize the combination of conditions to query the current area of the construction staff, the detention time and the leader of the shift into the tunnel.
★ 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.
4.5 First aid information after a disaster
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
4.6 Information networking function
Through the establishment of a WEB server, information sharing can be realized by browsing the web, and the client does not need to add any software. (The computer in the monitoring room is required to be able to access the Internet)
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