chrispeng [ad_1]
Tunnel personnel positioning system
1. System overview
The tunnel safety comprehensive monitoring system adopts the most advanced Zigbee wireless identification technology, and is designed according to the technical requirements and safety standards of highway tunnels, railway tunnels, and subway tunnels. It is a safe, reliable and intelligent tunnel construction management system. The system consists of four subsystems: KJ272 personnel positioning and attendance system, KT132 wireless communication system, LED synchronization control system, and video monitoring system, and can extend the wireless gas monitoring function.
2. System design principle
First, place a certain number of intrinsically safe base stations/card readers according to the actual needs of the enterprise and the specific conditions of the tunnel area. Typically, a base station is placed near the entrance of the tunnel and near the anchoring and shotcreting support area to ensure wireless communication within the network coverage; a card reader is placed near the tunnel entrance and a card reader is placed in the tunnel to achieve accurate attendance manage.
Wear a KJ272-K intrinsically safe positioning card for the person who needs to be positioned. After the person enters the tunnel, as long as the person is within the tunnel network coverage, at any point at any time, the base station can sense the signal and upload it to the information workstation. Software processing to obtain specific information (such as: who, where, specific time), at the same time it can be dynamically displayed (real-time) on the computer in the monitoring center or on the large LED screen outside the tunnel, and make a backup . Supervisors can know the status of people in the tunnel at any time.
The manager can also view a certain area according to the distribution diagram on the computer, and the computer will count and display the personnel in this area. The manager can observe the real-time regional location of the staff in the tunnel in real time, and realize the localization of the staff in the tunnel. In addition, once an accident occurs in the tunnel, the personnel at the accident site can be found immediately based on the personnel location distribution information in the computer, so as to help rescuers rescue the trapped people in an accurate and rapid manner.
Once an emergency occurs in the tunnel, the people in the tunnel can send out an alarm through the locating card they carry. People in the tunnel can send out an alarm by pressing the alarm button on the positioning card. The dynamic display interface in the monitoring room will immediately pop up a red alarm signal.
And then prepare an intrinsically safe mobile phone for the personnel in need (such as the leader on duty, the team leader, etc.). When the personnel enter the tunnel, as long as they are within the coverage of the tunnel network, they can easily realize the tunnel wireless mobile phone call function.
3. System structure diagram
4. Main functions of the system
4.1KJ272 personnel positioning system
By wearing positioning cards for tunnel personnel, ground monitoring personnel can observe the true distribution, number and names of all tunnel personnel on the tunnel map in real time. It can realize real-time monitoring of tunnel personnel, precise attendance, track tracking, distress alarm, emergency evacuation and other functions.
Features: Accurate attendance, personnel positioning, high speed without missing cards.
4.2 KT132 wireless communication system
Equip the tunnel personnel with mobile phones to realize free communication between the tunnel and the outside. The mobile phones can talk to each other, send and receive text messages, and can also talk to fixed telephones outside the tunnel. The monitoring center can send text messages to multiple mobile phones. The system also supports calls between mobile phones and external calls.
Features: stable calls, not easy to be interfered; inside and outside the tunnel, wired and wireless intercommunication, not only can communicate between mobile phones, but also can communicate with the fixed telephone system outside the tunnel, and authorized mobile phones can also communicate with external public network phones .
4.3 LED synchronization control system
The LED synchronization control system retrieves the real-time monitored personnel information data from the monitoring host and displays it on the large LED screen synchronously. The displayed content includes: name, type of work, department, and time to enter the tunnel, making management advanced and transparent.
Features: LED large screen outdoor full waterproof design, IP65 rating; real-time simultaneous display of attendance information; multiple display methods to meet the needs of tunnel attendance, publicity, on-site meeting welcome slogans, warm reminders, etc.
4.4 Video surveillance system
The video monitoring system uses high-definition digital cameras to record key scenes in the tunnel, intuitively and real-time monitoring of key production links such as the tunnel face.
Features: optical fiber transmission, long distance, strong anti-interference ability; small amount of data, long storage time; integrated image real-time display, pan-tilt encoding control, storage, playback, character overlay, matrix switching, authority management, and network communication. Powerful and easy to operate; the screen can display 1/4/9/16 camera images at the same time, and can perform image freezing, zooming and other operations; hard disk recording methods: continuous recording, dynamic recording, manual recording, and alarm recording.
[ad_2]
