Research on Coverage Scheme and Key Technology of Wireless Communication for Cover Development of Urban Rail Transit Parking Lot
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 3
Abstract
[Objective] The cover development design for urban rail transit parking lot is very complicated, requiring more new column grids. Moreover, after the cover development, the omnidirectional antenna set up on the roof of the complex building cannot cover the ground area of the parking lot. In order to effectively realize the wireless communication coverage of the parking lot, it is necessary to study the related schemes and key technologies. [Method] Based on the systematic engineering design of TETRA (terrestrial trunked radio) communication system for the parking lot of Textile City Station on Xi’an Metro Line 6 and in view of the difficulties of wireless communication coverage engineering, the frequency planning and allocation scheme of wireless communication system is proposed. A wireless communication coverage scheme is proposed for the parking lot, switch area, access sections and roads in the non-cover area of the parking lot. [Result & Conclusion] FA (frequency allocation) frequency group for wireless communication coverage is adopted for the parking lot of Textile City Station, which ensures frequency interval and avoids same frequency interference. The public security wireless communication system is introduced into the above parking lot, and the scheme of signal route coverage combined with the dedicated wireless communication system is adopted. Directional antenna is used as the coverage mode for the covered parking area to replace the omnidirectional antenna on the roof. Antenna correlation is used for the depot, antenna reinforcement for the throat area, and antenna coverage for U-shaped slot to solve the cross-zone switching , and directional antennas are adopted to cover the surrounding roads by utilizing building sidewalls or columns. The proposed wireless system coverage scheme for the cover development parking lot not only reduces the system interference and the impact on the existing operation, but also effectively solves the problem of the wireless communication coverage for the cover development parking lot, saving the project investment.
Authors and Affiliations
Qinggang LI
Keywords
Related Articles
- EP ID EP732822
- DOI 10.16037/j.1007-869x.2024.03.048
- Views 44
- Downloads 0
Control Circuit Optimization for High-speed Circuit Breaker in Traction System of Jinan Metro Line 3
[Objective] In the early operation stage of Jinan Metro Line 3, multiple sporadic high-speed circuit breaker closing failures are reported. To improve the reliability of train operation, it is necessary to optimize the h...
Effect of Rubber Soil Backfill on Vibration Isolation of Open-cut Tunnels
［Objective］ During the operation of urban rail transit, the train operation induced vibration can damage buildings and precision instruments along the line, and even affect people's daily lives. Therefore, effective vi...
Vibration Reduction Effect of Steel Spring Floating Slabs under Water Immersion Conditions
［Objective］ To address the issues of reduced vibration isolation performance of floating slabs under water immersion, it is necessary to study the impact of train operating speed and steel spring isolator stiffness on...
Development and Application of Online Noise Monitoring System for Urban Rail Transit Trains
Objective With the rapid development and expansion of urban rail transit, the problem of noise pollution is increasingly prominent due to the continuous extension of train operation lifespan. This not only causes severe...
Adaptability of Prefabricated Track Slab Dimensions to Track Alignments in Urban Rail Transit
Objective By investigating the adaptability relationship between prefabricated track slab dimensions and track alignments, and proposing reasonable prefabricated slab dimensions based on corresponding constraints, a basi...