Selective POI Display on Electronic Maps

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Solution Overview

Problem

Existing electronic map technologies face inefficiencies in updating and displaying points of information (POIs) across different scales, leading to overlapping and collision issues, which affects the overall display effect and update efficiency.

Innovation Solution

The method determines the position relationship between a target POI's display position and the influence region of other POIs on the electronic map, allowing for selective display based on whether the target POI is outside or within the influence region, and prioritizing display based on POI priorities, while adjusting the scale if necessary to avoid overlap.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If all updated POIs are rearranged and displayed on the electronic map at various scales, then the completeness of POI information is improved, but the computational complexity and time consumption increase significantly

Engineering Contradiction:

ImprovePOI information completenessVSAvoiddisplay system complexity

Core Design Contradiction:

Loss of informationVSDevice complexity

Solution Approach 1:

The patent extracts only the target POI information that needs to be updated and displays it selectively, rather than rearranging all POIs. This is achieved by determining the position relationship between the target POI and existing POIs, and only displaying the target POI when it does not overlap with existing POIs at the current scale, thereby reducing computational complexity while maintaining information completeness

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent performs partial action by displaying only the necessary target POI information rather than all POIs. It uses a judgment mechanism to determine whether to display the target POI based on position relationships and scale, performing the minimum necessary action to maintain information completeness without unnecessary computational overhead

Inventive Principle:

Principle #16Partial or excessive action

2Quantity of substance

If POIs are displayed at smaller scales, then the number of POIs displayed increases, but the likelihood of POI overlap and collision increases

Engineering Contradiction:

Improvenumber of POIs displayedVSAvoiddisplay precision

Core Design Contradiction:

Quantity of substanceVSManufacturing precision

Solution Approach 1:

The patent implements a dynamic display mechanism where the system automatically adjusts the display behavior of target POIs based on the current map scale. At smaller scales where overlap is more likely, the system dynamically determines whether to display the target POI by checking position relationships with existing POIs, thus adapting the display precision to the scale condition while maximizing the number of POIs displayed

Inventive Principle:

Principle #15Dynamics

3Loss of time

If the electronic map is updated with new POIs, then the information freshness is improved, but the display effect deteriorates due to overlapping POIs

Engineering Contradiction:

Improveinformation update timelinessVSAvoiddisplay effect quality

Core Design Contradiction:

Loss of timeVSReliability

Solution Approach 1:

The patent implements a feedback mechanism where the system continuously monitors the position relationship between the target POI and existing POIs at the current scale. Before displaying the updated POI information, the system checks whether the target POI would overlap with existing POIs, and only displays it when the position relationship indicates no overlap, thus ensuring information freshness while maintaining display quality through real-time feedback control

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS11587533B2Method for displaying point of information of map, device, and readable storage medium

Publication Date: 2023.02.21 BEIJING BAIDU NETCOM SCI & TECH CO LTD

AI summary

The disclosure discloses a method for displaying a point of information of a map, a device, and a storage medium. The detailed implementation includes: obtaining a display position of a target point of information (POI) to be displayed; on a target electronic map displayed at a preset scale, determining a position relationship between the display position of the target POI and an influence region of each POI located in the target electronic map; and displaying information of the target POI at the display position of the target electronic map in response to the display position of the target POI being located outside the influence region of each POI in the target electronic map. With the technical solution of the disclosure, when the POI is displayed, the display efficiency and the intelligence degree are improved, the POI overlapping with its surrounding POIs is improved, and the overall display effect is ensured.