Subway Base Station Positioning Through Station-Tunnel Signal Classification
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Solution Overview
Problem
Existing methods for determining base station positions in subway scenarios, such as manual collection and crowdsourcing, suffer from low efficiency and high labor costs, leading to inaccurate positioning and poor user experience due to disorderly jumping and positioning failures.
Innovation Solution
A signal processing method that classifies base stations into types based on their distribution patterns in subway stations and tunnels, using base station information and position information carried by signals to determine accurate positions of base stations of different types, including those in stations and tunnels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual collection method is used to determine base station positions, then positioning information can be obtained, but processing efficiency is low and labor cost is high
Solution Approach 1:
The patent replaces the manual mechanical collection process with an automated signal processing system. Terminal devices automatically collect base station signals and position information, which is then processed by a server to determine base station positions, eliminating the need for manual field collection and significantly improving processing efficiency
Solution Approach 2:
The system enables terminal devices to automatically perform data collection and preliminary processing without human intervention. The terminal devices themselves serve as data collection nodes, automatically reporting signal information and position data to the server, which then performs automated position determination
2Measurement precision
If manual collection method is used to determine base station positions, then positioning information can be obtained, but labor cost is high
Solution Approach 1:
The patent replaces manual labor with automated signal processing systems. The server automatically processes signals from multiple terminal devices to determine base station positions, eliminating the need for human workers to physically collect data in subway stations and tunnels, thereby reducing labor costs
3Productivity
If traditional positioning method is used in subway scenarios, then base station positioning can be performed, but positioning accuracy is poor due to disorderly jumping and positioning failures
Solution Approach 1:
The patent segments the subway environment into different scenarios (subway stations and subway tunnels) and applies different positioning strategies for each. In subway stations, the system uses terminal device position information to determine base station positions, while in tunnels, it uses signal propagation characteristics and time difference of arrival methods, thereby improving positioning accuracy in each specific scenario
Solution Approach 2:
The system dynamically changes positioning parameters and methods based on the detected environment. When terminal devices detect they are in a subway station versus a tunnel, the system adjusts the positioning algorithm and parameter selection to optimize accuracy for that specific scenario, preventing disorderly jumping and positioning failures
Data Source
AI summary
The present disclosure provides a signal processing method and apparatus, a device, and a storage medium. The method includes: acquiring a signal set to be processed that carries base station information and base station access time; determining a first signal subset that further carries position information in the signal set to be processed; determining position information of a base station of a first type deployed in a subway station according to the base station information and the position information that are carried by the signal of the first signal subset; and determining position information of a base station of a second type deployed in a subway tunnel according to the position information of the base station of the first type, and the base station information and base station access time that are carried by the signal of the signal set to be processed.