The large broadband,short delay and wide access of 5G network have laid the foundation of the necessary network infrastructure for all kinds of professions and promoted the continuous enrichment of urban rail transit construction.However,when accidents happen during metro construction,rescue workers cannot obtain the accurate real-time position of the construction site personnel and cannot quickly arrive at the accident site for rescue.In order to effectively solve these problems,this paper,based on the plan of"5G+ ubiquitous wireless"fusion technology,analyzes the advantages and disadvantages of WiFi,Bluetooth,RFID,ultrasonic waves,UWB,and other positioning technologies one by one.After fully considering the underground application scenarios of urban rail transit,a solution of"5G+ Bluetooth"fusion positioning technology is finally proposed.By establishing two networks,namely a 5G network and a Bluetooth positioning network,positioning data is returned and information is reported.This allows 5G micro base stations to become the information hubs of the mobile cellular network and the Bluetooth positioning network,enabling accurate positioning.
维普
万方数据
