海南世电UWB在隧道施工人员安全管理的应用-海南世电科技

I. Industry status and needs

Tunnel infrastructure construction management is insufficient, it is difficult to monitor every detail, by the complexity of engineering geology and hydrogeology, the complexity of the surrounding environment (buildings, roads and pipelines, etc.), the low professional quality of construction personnel and other factors such as the occurrence of accidents, tunneling construction is facing a great deal of management problems. Therefore, in order to prevent the occurrence of accidents and rescue the trapped personnel effectively and quickly after the accident, advanced positioning technology can be utilized for operation control.

Pain Point 1:The traditional management mode is to count the number of people entering and leaving the cave through the gate at the entrance, and to check the real-time operation situation through the camera near the palm surface. It is impossible to accurately grasp the actual location of the workers in the cave, and there are errors and omissions in the number of people counted.

Demand 1:Utilizing UWB positioning technology, it obtains the precise location of operators in real time and accurately counts the number of operators in each area of the cave.

point of pain 2::Personnel call for help function is single, when personnel encounter emergency, only through the emergency telephone to call for help.

Requirement 2:Enhanced call for help function, when the personnel encountered an emergency, you can quickly call for help through the SOS button on the positioning tag.

Pain Point 3:The warning function is single, and the traditional way of warning is to notify through broadcasting.

Demand 3:Issuing an early warning, the personnel wearing a positioning tag vibration, reminding the designated personnel or quickly remind all personnel, auxiliary broadcasting to achieve accurate warning function.

point of pain 4::The statistics of operator attendance information is cumbersome and its accuracy cannot be guaranteed.

demand (economics) 4::Adopt positioning technology to achieve accurate attendance statistics and reduce the workload of manual statistics. Synergize with gates to improve data accuracy.

Pain Point 5:The supervision of the digging progress of the palm face and the spacing of the second lining cart is measured manually, which is less efficient.

Demand 5:The use of positioning technology allows for step monitoring of the palm face and the second liner cart, replacing manual measurements.

Pain Point 6:The construction environment of the tunnel is difficult and harsh, the risk factor of the work type is high, and there are many staff and vehicles, so it is not possible to grasp the work status of the construction personnel and the location of the vehicles in the tunnel in real time.

Demand 6:Adopting uwb positioning technology, it can realize step-by-step monitoring of employees' construction status and vehicle distribution. Through the establishment of an intelligent management platform integrating "location information + regional early warning + data statistics + rescue", the management and operation capability of tunnel construction can be significantly improved.

II. Overall programmatic structure

The system consists of UWB tags, UWB high-power positioning base stations, positioning engine software (C/S architecture) and positioning application system. the UWB high-power positioning base stations are connected to the nearby switches through PoE modules, and the switches are connected to each other through wireless bridges or optical fiber.

III. On-site deployment

According to the user needs to cover the tunnel area, combined with drawings and site surveys, to assess the feasibility of the deployment program, the program through a multi-party review and approval is to enter the construction phase (integrators are responsible for the construction and installation, Hainan Shidian guide installation, commissioning)

Application platform software and large screen display

Real-time location and personnel statistics:

Accurately locate the position of personnel in the cave and display detailed information about each type of worker and the distance from the cave entrance.
Integrate the UWB positioning system with the tunnel access management system, real-time statistics of the number of people in the cave, the number of people in the palm face, the number of people in the second lining, and so on.
The safety step is set by the surrounding rock level, and an alarm is issued when the safety step of tunneling exceeds the threshold value.