Phased Array Beam Control for Track-Specific Train Image Delivery

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Solution Overview

Problem

Existing wireless communication systems for vehicle formations require separate detection systems to provide appropriate images to entering vehicles, leading to high introduction costs.

Innovation Solution

A wireless communication device equipped with a phased array antenna and a control unit that adjusts beam direction based on communication partners, using a beam table to associate beam directions with service information, allowing targeted data transmission and reception.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a separate detection system is introduced to detect vehicle formations entering tracks, then appropriate images can be provided to specific vehicle formations, but introduction costs increase

Engineering Contradiction:
Improveability to provide appropriate images to specific vehicle formationsVSAvoidintroduction costs
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The wireless communication device is configured to perform multiple functions: it serves as both the communication interface for transmitting images and as the detection system for identifying vehicle formations entering tracks. By integrating these functions into a single device, the patent eliminates the need for separate detection systems, thereby reducing introduction costs while maintaining the ability to provide appropriate images to specific vehicle formations based on track identification

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines the image transmission function and the vehicle formation detection function into a single wireless communication device. This merging of functions allows the system to identify vehicle formations and transmit appropriate images through the same device, reducing overall system complexity and introduction costs while maintaining adaptability to different tracks

Inventive Principle:
Principle #5Merging (Combining)

2Device complexity

If common identification settings are used for all vehicle formations, then introduction costs are reduced, but the ability to provide track-specific images is lost

Engineering Contradiction:
Improveintroduction costsVSAvoidability to provide track-specific images
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The wireless communication device dynamically adjusts its communication parameters and image selection based on the detected track and vehicle formation. Instead of using static common settings for all formations, the device changes its behavior adaptively - selecting different images and adjusting communication settings according to the specific track and vehicle formation being served, thereby maintaining both cost-effectiveness and track-specific functionality

Inventive Principle:
Principle #15Dynamics

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

Enables appropriate service provision to communication partners while minimizing introduction costs by optimizing beam direction and data transmission.

Implementation Method 1

a phased array antenna having a beam forming function

Methodology Applied
Scientific EffectBeam forming: Interference

Data Source

PatentUS20260005741A1Wireless communication device and wireless communication system
Publication Date: 2026.01.01 FUJIKURA LTD
  • US20260005741A1 patent drawing
  • US20260005741A1 patent drawing
  • US20260005741A1 patent drawing

AI summary

A wireless communication system includes a wireless communication device and a plurality of wireless devices. The wireless communication device includes a phased array antenna having a beam forming function, and a control unit that controls a direction of a beam of the phased array antenna and performs control of providing a service according to the direction of the beam of the phased array antenna. For example, the wireless communication device is installed on a platform, the wireless device is installed on a train that enters the platform, and the wireless communication device provides a service of causing a monitor provided on the train that enters a track of the platform to display an image of the track of the platform where the train enters.