Map Display of Charging Rates at Power Facility Locations
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Solution Overview
Problem
Users of power facilities, such as battery electric vehicles, face challenges in recognizing the power rate required for charging in advance, leading to uncertainty and inconvenience.
Innovation Solution
A display device and method that integrate a controller to display power-rate-related information alongside the placement position of power facilities on a map image, allowing users to easily access and recognize the power rate unit price for charging, utilizing a system that includes a power company server, facility management server, information providing server, vehicle management server, and mobile terminal to obtain and present this information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If power rate information is not displayed on the map image, then the map image remains simple and easy to read, but users cannot recognize power rate information in advance
Solution Approach 1:
The display device segments information by type and importance, showing power rate information specifically at power facility locations rather than uniformly across the entire map. This selective segmentation allows critical charging cost information to be displayed without overwhelming the user with unnecessary details in other areas.
Solution Approach 2:
The map image serves as an intermediary visual medium that integrates both location information and power rate information in a unified display. By overlaying power rate data on the map at relevant locations, the system provides comprehensive information without requiring separate displays or interfaces.
2Ease of operation
If power rate information is displayed for all power facilities, then users can recognize charging costs in advance, but the information becomes difficult to locate and recognize
Solution Approach 1:
The display device applies local quality by showing power rate information specifically at power facility locations on the map, rather than uniformly across the entire display area. This localized approach ensures that information is presented exactly where it is most relevant to the user's navigation and decision-making process.
Solution Approach 2:
The system uses color coding to differentiate power facilities based on their power rate characteristics. By assigning distinct colors or color intensities to facilities with different pricing, users can quickly scan the map and identify cost-effective charging options without having to read detailed numerical data for each facility.
3Loss of information
If detailed power rate information is displayed, then users can make informed charging decisions, but the display becomes cluttered and harder to read
Solution Approach 1:
The display device implements partial action by showing only the essential power rate information needed for user decision-making, rather than displaying all available data. This selective display includes key parameters like unit pricing and estimated charging costs, while omitting less critical details that would contribute to clutter.
Solution Approach 2:
The system transitions from a two-dimensional cluttered display to a multi-dimensional information presentation by using visual hierarchy, color coding, and spatial arrangement on the map. Important information is positioned prominently, while secondary details are integrated into the background or displayed on demand, creating a layered information structure that maintains readability.
Data Source
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AI summary
A mobile terminal (60) includes a display (624) and a controller (630). The display (624) displays a map image. The controller (630) controls the display. The controller controls the display to, when a placement position of at least one power facility is displayed on the map image, display power-rate-related information and the placement position of the at least one power facility on the map image. The at least one power facility supplies electric power to an object having a power storage device mounted thereon, to charge the power storage device. The power-rate-related information is information related to a power rate unit price for charging.