Smart Barn Door Wireless Control With Hall Position Sensing

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Solution Overview

Problem

Existing doors require manual operation, which is inconvenient for the elderly or disabled, and do not align with the concept of smart furniture.

Innovation Solution

A smart barn door system with a controller, driving device, roller, and track, enabling wireless control through voice or remote signals, and incorporating Hall sensors and magnets for precise movement control, along with a textured roller for enhanced stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual operation is used for doors, then device complexity is reduced, but ease of operation deteriorates for elderly or disabled users

Engineering Contradiction:
Improveease of operationVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces the purely mechanical manual door operation system with an automated system using a driving device (motor), roller, and controller. The controller receives wireless control signals and automatically actuates the driving device to open or close the door, substituting manual mechanical operation with an electromechanical automated system.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The door system performs the opening and closing actions autonomously in response to control signals, eliminating the need for human physical intervention. The system serves itself by automatically executing door operations based on received commands, making it particularly beneficial for elderly or disabled users who cannot manually operate traditional doors.

Inventive Principle:
Principle #25Self-service

2Ease of operation

If wireless control is added to enable remote operation, then ease of operation is improved, but device complexity increases

Engineering Contradiction:
Improveease of operationVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent introduces a wireless communication system that replaces physical presence requirements with remote electronic control. The wireless control signal transmission and reception system enables users to operate the door from a distance without physical contact, substituting direct mechanical interaction with wireless electromagnetic communication.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The controller serves multiple functions: it receives wireless control signals, processes control instructions, manages the driving device operation, and coordinates the overall door system. This multi-functional integration improves ease of operation while managing device complexity through consolidation.

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

3Measurement precision

If Hall sensors and magnets are added for precise movement control, then measurement precision is improved, but device complexity increases

Engineering Contradiction:
Improvemeasurement precisionVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent implements a feedback control system using Hall sensors and magnets to monitor the door's position and movement in real-time. The Hall sensors detect magnetic field changes caused by the magnets attached to moving components, providing continuous feedback to the controller about the door's actual position and movement status, enabling precise control and accurate positioning.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent replaces mechanical position detection methods with magnetic field-based sensing. The Hall sensors detect the position of magnets through non-contact magnetic field measurement, substituting mechanical switches or contact-based position sensors with a more precise and wear-free magnetic sensing system.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Reliability

If a textured structure is added to the roller to increase friction, then reliability is improved, but manufacturing precision requirements increase

Engineering Contradiction:
ImprovereliabilityVSAvoidmanufacturing precision
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent applies a textured structure specifically to the roller surface that contacts the track, creating a localized area with enhanced friction properties. This local quality enhancement improves the roller's grip on the track, ensuring reliable door operation and preventing slippage, while the rest of the roller maintains smooth surfaces for easier manufacturing.

Inventive Principle:
Principle #3Local quality

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 remote and intelligent control of door movement, improving convenience and safety for all users, especially the elderly or disabled, by eliminating manual operation and preventing collisions.

Implementation Method 1

a portion of the roller in contact with the track is provided with a textured structure; and the textured structure is used to increase a frictional force between the roller and the track

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

the smart barn door further includes a Hall sensor, first magnet, and second magnets; the Hall sensor is electrically connected to the controller and the Hall sensor moves with the door body

Methodology Applied
Scientific EffectHall effect: Hall Effect

Data Source

PatentUS12454857B2Smart barn door, control method and device applied to the smart barn door, and computer- readable storage medium
Publication Date: 2025.10.28 SHENZHEN NOVILAND TECH CO LTD
  • US12454857B2 patent drawing
  • US12454857B2 patent drawing
  • US12454857B2 patent drawing

AI summary

A smart barn door includes a door body, a controller, a driving device, a roller, and a track. The driving device and the roller are fixedly connected to the door body. The driving device is used to drive the roller to roll and to move along the track. When the roller moves along the track, the roller drives the door body to move accordingly. The controller is used to control an operating status of the driving device. The controller is provided with a wireless communication port. The wireless communication port is used to acquire a wireless control signal to remotely control the door body to move. A control method applied to the smart barn door includes the following steps: acquiring the wireless control signal; detecting an operation instruction corresponding to the wireless control signal; and controlling, by the controller, the driving device to operate according to the operation instruction.