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Nextday Technology’s high-precision tunnel safety comprehensive monitoring system uses advanced ZigBee wireless technology. Design in accordance with the technical requirements and safety standards of construction safety production enterprises for road tunnels, railway tunnels, power tunnels, and subway tunnels. The system uses the same communication network to realize tunnel personnel positioning, personnel attendance, mobile phone wireless communication, LED synchronization control, video monitoring, intrusion alarm, environmental monitoring and other functions. The unique multi-network integration system not only meets the functional requirements of various aspects of tunnel construction, but also has significant advantages of “low cost and high efficiency”.
One: Tunnel personnel attendance system
System Features
1. Simple system architecture:
Only need to arrange the base station where needed, directly access the network, without other auxiliary access equipment, low cost, easy to install and maintain.
2. Base station wireless transmission:
The base station of the tunnel face is transmitted through a wireless bridge without wiring, thus avoiding the trouble of wiring in the tunnel. Existing network tunnels, base stations can be accessed nearby, which is convenient for construction.
3. Strong practicality:
Automatic attendance management can avoid errors and omissions caused by traditional manual registration. At the same time, the real-time positioning function can automatically record the distribution and arrival of personnel, eliminating manual supervision.
4. High scalability:
According to actual needs, the system provides an open interface, which can expand auxiliary systems such as automatic access control and LED display based on personnel positioning, and realize real-time synchronous control and display.
Two: precise positioning of the tunnel
System Features
1. Precise positioning:
The world’s most advanced Zigbee signal time-of-flight technology, with precise positioning function, the positioning accuracy can reach ±3 meters, realizing true positioning.
2. Signal full tunnel coverage:
The distance between base stations can be up to 800 meters, and only a few base stations can be installed to cover the whole line, saving the construction and maintenance workload caused by installing a large number of equipment.
3. Intrinsically safe equipment:
The system equipment is an intrinsically safe equipment that meets coal safety standards, and its electrical performance and protection performance are much higher than other ordinary equipment.
4. Wireless transmission:
The network-type card reader master station can use a wireless bridge for transmission, saving the trouble of wiring and maintenance in the tunnel. For tunnels with existing networks, the main station can be accessed nearby, facilitating construction.
5. Positioning of the face of a single base station:
Different from other positioning technologies that require positioning between two base stations, the tunnel system has a special positioning principle, and a single base station can realize the positioning of the end of the tunnel. Effectively solve the positioning problem of the area close to the tunnel face during the tunneling process.
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