Taxi Call Terminal Display Switching for Passenger Recognition

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Solution Overview

Problem

Existing taxi dispatch systems struggle to accurately identify the passenger who made the call request, especially when multiple individuals are present, and passengers cannot easily monitor the status of the approaching taxi.

Innovation Solution

A terminal control method using a wireless communication device, display device, and vibration device to transmit and display specific images and patterns, and generate vibrations to facilitate recognition by the taxi and provide situational awareness to the user.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the display shows a light emission blinking state for visual confirmation, then the driver can visually check the passenger, but the terminal cannot be automatically read by a camera and the user cannot grasp the taxi status

Engineering Contradiction:
Improveterminal recognition accuracyVSAvoiduser awareness of taxi status
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The display dynamically changes between a first state (light emission blinking) and a second state (different light emission pattern) based on recognition status. The vibration device also dynamically activates to provide tactile feedback when the display is recognized, creating a dynamic system that adapts to different operational phases

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system implements feedback by detecting when the display is recognized by the taxi (via camera or driver visual confirmation) and responding by changing the display state and activating vibration. This closed-loop feedback ensures the user receives confirmation that recognition occurred and can monitor the interaction status

Inventive Principle:
Principle #23Feedback

2Reliability

If multiple persons are present near the caller, then social interaction is possible, but the taxi cannot recognize which person made the call request

Engineering Contradiction:
Improvepassenger identification accuracyVSAvoidrecognition system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The display acts as an intermediary between the terminal and the taxi. By projecting visual information (light emission patterns, QR codes, or other recognizable displays) that the taxi can capture via camera or visual inspection, the system mediates the recognition process without requiring complex biometric sensors or identification hardware in the terminal

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system creates a visual copy or representation of the terminal's identification status through the display. Instead of directly transmitting electronic identification data, the system generates a visual replica (display pattern) that can be captured by the taxi's camera or observed by the driver, simplifying the recognition mechanism

Inventive Principle:
Principle #26Copying

3Measurement precision

If the terminal directs the display toward the taxi for recognition, then the taxi can identify the terminal, but the user cannot check the terminal and grasp the situation

Engineering Contradiction:
Improveterminal recognition accuracyVSAvoiduser situational awareness
Core Design Contradiction:
Measurement precisionVSLoss of information

Solution Approach 1:

The vibration device provides tactile feedback to the user when the display is recognized by the taxi. This mechanical vibration communicates recognition status directly to the user through touch, allowing them to grasp the situation without visually checking the terminal display while maintaining accurate terminal recognition

Inventive Principle:
Principle #18Mechanical vibration

Solution Approach 2:

The display changes its visual state (light emission patterns, colors, or display content) to indicate different recognition statuses. These visual changes provide the user with information about the taxi interaction status while the display remains directed toward the taxi, eliminating the need for the user to physically check the terminal

Inventive Principle:
Principle #32Color changes

Data Source

PatentUS20260040376A1Terminal control method
Publication Date: 2026.02.05 PANASONIC AUTOMOTIVE SYST CO LTD
  • US20260040376A1 patent drawing
  • US20260040376A1 patent drawing
  • US20260040376A1 patent drawing

AI summary

A terminal control method executed by a terminal including a wireless communication device, a display device, and a vibration device includes transmitting, by the wireless communication device, a call request for a vehicle to an outside; receiving first information associated with the call request from the outside in the wireless communication device; displaying, by the display device, a first display corresponding to the first information; displaying, by the display device, a second display different from the first display when the wireless communication device receives a notification that the first display displayed on the display device is recognized by the vehicle from the outside; and vibrating the vibration device when the wireless communication device receives a notification that the second display displayed on the display device is recognized by the vehicle from the outside.