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The solution of personnel positioning system in urban underground pipe gallery
1. Does the operation and maintenance management of urban underground pipe galleries require personnel positioning systems? In China's urban construct
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1. Does the operation and maintenance management of urban underground pipe galleries require a personnel positioning system
In China's urban construction, due to the rapid expansion of population, many existing infrastructure cannot meet the requirements of population development. Therefore, urban pipe corridors have become a key focus of urban construction in recent years. Urban utility tunnels can concentrate infrastructure such as optical cables into the tunnels, which provide very convenient conditions for construction and maintenance underground, effectively avoiding the ineffectiveness of previous production operations such as road excavation. This is a key direction for future urbanization transformation.The underground comprehensive pipe gallery in the city concentrates on maintaining the water, gas, electricity, and communication pipelines for urban functions. If there are problems with the internal environment and equipment of the pipe gallery, it will cause the paralysis of urban functions along the route.
The construction of urban utility tunnels includes both human and material aspects. In the installation and maintenance of personnel, personnel positioning has become very important, and according to the requirements of safety production such as coal mines, although the underground depth of the pipe gallery is not deep, there is still a certain need for personnel safety positioning. In case of any abnormal situation, it is possible to timely understand the location information of personnel and improve the efficiency of safety production.
In addition, the infrastructure such as pipelines in the pipe gallery requires maintenance, as well as the calibration of maps and location information, so that when a fault occurs, maintenance personnel can quickly locate the low point of the fault, carry out emergency repairs, and improve production efficiency. RFID based indoor positioning is the only solution that can provide a low-cost solution.
2. Current situation of pipe gallery construction
The current situation of pipe gallery construction still lacks effective indoor positioning methods such as introducing RFID or personnel positioning systems based on UWB positioning. The main way is to save the construction map and search for the location through map operations during maintenance. There are issues such as timely updates of maps, lack of information on the location of safe construction personnel, and low efficiency in maintenance. Further measures are needed to introduce indoor positioning and personnel positioning systems to address this issue.
3. Composition of Urban Underground Pipe Gallery System Based on Positioning Technology
The urban underground pipe gallery operation and maintenance platform is designed forIn the construction of the comprehensive pipe gallery, functions such as environmental and equipment monitoring, personnel maintenance, and inspection are adoptedUWB technology and RFID positioning technologyBased on this, to ensure the safe operation of the entire comprehensive pipe gallery. implementUnderground pipe gallery positioningThe intelligence and automation of operation and maintenance ensure the safety of the environment, equipment, and maintenance personnel in the pipeline corridor, enhance the stability and security of the pipeline system, and eliminate the need for tedious joint debugging, allowing for immediate installation and use.
This system adopts the Internet of Things architecture and hierarchical design thinking. Through a three-layer architecture of "monitoring layer", "transmission layer", and "architecture layer", it monitors the parameters and status of the environment and equipment in the pipe gallery in real time throughout the process. Through network interconnection, transmission, calculation, and processing are carried out to achieve real-time control of the on-site environment, ventilation equipment, maintenance personnel, and various devicesprecise positioningMake scientific decisions to ensure that the environment and equipment inside the pipeline are always in a safe state. The functional structure is shown in the following figure:
The urban underground pipe gallery operation and maintenance platform includes three main parts: sensor data acquisition subsystem, pipe gallery personnel management subsystem, and safety management subsystem. The personnel management subsystem of the pipe gallery adoptsUWBPersonnel management function based on positioning technology, arranged inside the pipe galleryUWB base stationThe model has built a precise positioning network, realizing functions such as personnel attendance, regional positioning, security warning, electronic fence, personnel patrol, and trajectory positioning.
There are numerous underground pipelines in urban areas, and the safety of personnel in production operations is particularly important. Similar to mine safety positioning, efforts are made to address whether daily inspections are in place and to maintain the real-time and accurate location of personnel. When rescue is needed, it can be accurately reached with an error of less than 30 centimeters.
4. Deployment of Positioning System for Urban Underground Pipe Gallery System
Regarding personnel positioning system: underground pipe gallerypositioning base stationDeploy at the intersection of each pipe gallery channel, with a height close to the top, and the line of sight towards the channel is basically unobstructed. The data transmission of the base station can be achieved through limited POE, while solving transmission and power supply problems, or through WIFI transmission.Maintenance personnel need to carry it during daily inspectionsUWB tagAlternatively, with a wristband, monitoring personnel in the lobby can view real-time personnel locations and historical trajectory maps on the monitoring software.
For facilities such as pipelines, RFID positioning tags need to be deployed at each maintenance point. RFID positioning tags can be passive tags or tags with lithium batteries. Maintenance personnel can carry RFID card readers for production operations and quickly locate the nodes that need to be located by matching them with digital maps.
Electronic map of urban underground pipe gallery system: Electronic map is the key to the construction of urban underground pipe gallery system, which is achieved byUWB positioning schemeCombined organically with RFID positioning solutions, it can be calibrated on electronic maps, achieving the organic unity of personnel verification and equipment fault location.
5. Construction cost of positioning system for urban underground pipe gallery system
The urban underground pipe gallery system inevitably increases the construction cost. It mainly includes several aspects such as base stations and tags for personnel positioning, RFID tags and card readers for pipeline positioning, and the production of electronic maps. The overall construction cost expenditure accounts for a very small proportion of the entire pipe gallery construction. UWB base stations are deployed based on the size of the room and space, while RFID tags are deployed based on the distance calibrated by the unit.
6. Advantages of the plan
For personnel maintenance,Personnel positioning systemCan improve the efficiency of personnel operations and provide accurate efficiency maps of personnel operations. At the same time, a final location map for safety production is also provided.
For pipeline maintenance, it greatly improves the management efficiency of equipment.
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