Underground Navigation Prompting via Reference Station Logic
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Solution Overview
Problem
Existing navigation systems do not effectively provide users with timely and accurate prompts to get off at specific stops, especially in underground vehicle environments where traditional navigation methods are less reliable.
Innovation Solution
A method and apparatus that acquire traffic behavior statuses of an underground vehicle at stops on a preset navigation route, determine a reference station based on consistent traffic behavior statuses, and output prompt information for getting off when the traffic behavior status at a preset stop matches a predefined status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional navigation methods are used in underground vehicle environments, then the system structure remains simple, but the reliability of navigation is insufficient
Solution Approach 1:
The patent introduces base stations as intermediary objects between the terminal device and the underground vehicle navigation system. These base stations are deployed at stops to provide location information, serving as mediators that enable reliable navigation in underground environments where traditional GPS signals cannot penetrate. The base stations transmit signal strength information to terminal devices, allowing them to determine their location without requiring complex additional hardware in the terminal itself.
2Measurement precision
If base stations are deployed at all stops to improve location accuracy, then the measurement precision improves, but the loss of substance increases due to more base stations
Solution Approach 1:
The patent applies local quality by making the base station deployment strategy location-dependent rather than uniform. Base stations are selectively deployed at specific stops based on local traffic characteristics, passenger flow patterns, and navigation demand. This means that not all stops receive base stations, but rather those locations where they will provide the most value for navigation accuracy, thus optimizing the balance between location precision and resource consumption.
Solution Approach 2:
The system uses partial action by determining location accuracy based on signal strength thresholds rather than requiring signals from all possible base stations. The terminal device can accurately determine its location using signals from a subset of base stations, specifically those whose signal strength exceeds predetermined thresholds. This partial action approach achieves sufficient location precision without requiring the excessive deployment of base stations at every possible location.
3Measurement precision
If the system monitors traffic behavior status at all stops to determine location, then the measurement precision improves, but the loss of time increases due to more status checks
Solution Approach 1:
The system performs partial monitoring of traffic behavior status by focusing only on the immediate stop and potentially a limited number of adjacent stops rather than continuously monitoring all stops on the route. The terminal device determines location accuracy by checking traffic behavior status at the current stop where the user is likely to alight, using signal strength information from base stations at that specific location. This partial checking approach achieves sufficient location precision without the excessive time cost of monitoring all stops.
Solution Approach 2:
The system performs preliminary determination of traffic behavior status at stops before the terminal device needs to make a navigation decision. By pre-acquiring and storing traffic behavior status information for stops along the route, the system eliminates the need for real-time status checking when location determination is needed. This preliminary action allows the terminal device to quickly compare pre-fetched status information with current signal strength data to determine location accuracy without time-consuming status checks.
Data Source
AI summary
A method and apparatus for prompting navigation information. The method includes: acquiring, when a user is in an underground vehicle area, traffic behavior statuses of an underground vehicle at stops on a preset navigation route; determining, in response to the traffic behavior status of each stop of adjacent stops on the navigation route being consistent with a first preset traffic behavior status, a base station corresponding to a latter stop in the adjacent stops as a reference station; determining a location of a preset stop on the navigation route, based on a location of the reference station and locations of base stations provided at the stops; and outputting, in response to the traffic behavior status of the underground vehicle at the preset stop being consistent with a second preset traffic behavior status, prompt information for getting off.