EV Charging Pile Screen Casting via NFC Vehicle Interface

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Solution Overview

Problem

Charging piles for electric vehicles require human-computer interaction interfaces, which increase costs and are prone to failure due to exposure to open-air conditions, affecting durability and user experience.

Innovation Solution

Establish a near-field communication connection between the charging pile and the vehicle to transmit information to the vehicle's electronic device, enabling it to display a human-computer interaction interface, thereby eliminating the need for physical interaction with the charging pile.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a physical interaction interface is provided in the charging pile, then human-computer interaction functionality is achieved, but the cost of the charging pile increases and the interface durability deteriorates due to exposure to open-air conditions

Engineering Contradiction:
Improvecharging pile costVSAvoidinterface durability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent projects the interaction interface from the charging pile to the user's electronic device (smartphone, tablet, or vehicle screen) through screen casting technology. The charging pile transmits interface data to the electronic device, which then displays and handles user interactions. This eliminates the need for a physical screen at the charging pile, reducing its cost and exposure to environmental damage while maintaining full interaction functionality.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The electronic device serves as an intermediary between the user and the charging pile. Instead of the user directly interacting with the charging pile's physical interface, the interaction is mediated through the user's electronic device, which receives data from the charging pile via near-field communication and displays the interface locally.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If a physical interaction interface is provided in the charging pile, then user interaction is enabled, but the complexity of the charging pile system increases

Engineering Contradiction:
Improveuser interaction capabilityVSAvoidcharging pile system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The interaction interface functionality is extracted from the charging pile system and transferred to the user's electronic device. The charging pile retains only the essential charging functions and data transmission capabilities, while the complex display and interaction handling are offloaded to the user's device, simplifying the charging pile's overall system complexity.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of manufacture

If screen casting is implemented to eliminate the physical interface, then charging pile cost is reduced, but near-field communication connection establishment is required

Engineering Contradiction:
Improvecharging pile costVSAvoidcommunication connection requirement
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The system automatically establishes near-field communication connections and initiates screen casting without requiring manual configuration. The charging pile and electronic device automatically detect each other, establish communication channels, and begin interface projection, making the process transparent to the user while eliminating the need for physical interfaces.

Inventive Principle:
Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Reduces the cost of charging piles by eliminating the need for on-site interaction interfaces and enhances user experience through simplified charging operations.

Implementation Method 1

establishing a near-field communication connection with a vehicle

Methodology Applied
Scientific EffectNear-field communication: Electromagnetic Induction

Data Source

PatentEP4717512A1Screen casting method, screen casting apparatus, electronic device, and storage medium
Publication Date: 2026.04.01 SUNGROW CHARGING TECH CO LTD
  • EP4717512A1 patent drawingFigure 1~2
  • EP4717512A1 patent drawingFigure 3~4
  • EP4717512A1 patent drawingFigure 5~6

AI summary

Provided are a screen casting method, a screen casting apparatus, an electronic device, and a storage medium, which belongs to the field of communication technologies. The method includes: establishing a near-field communication connection with a vehicle; and sending, when the near-field communication connection is successfully established, first information to an electronic device related to the vehicle, to cause the electronic device to display a first interface. The first interface is a human-computer interaction interface corresponding to the charging pile. According to the provided screen casting method, the charging pile is no longer required to provide the human-computer interaction interface. In this way, the cost of the charging pile is reduced, and the user experience is improved.