Brushless DC Motor Control for Door and Window Automation
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Solution Overview
Problem
Existing automatic door and window systems are complex, unreliable, and lack remote control functionality, leading to issues with operation stability, vibration, and the inability to remotely control or ventilate spaces effectively.
Innovation Solution
An intelligent control system comprising an intelligent control end, a server, and a control terminal with MCU, signal receiving/transmission components, mechanical control components, position detection, and anti-theft features, utilizing a brushless direct current motor for remote control of various door and window types, enabling remote operation and position detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a chain mechanism is used for force transmission in automatic door and window systems, then the system can achieve automatic control, but the structure becomes complex and reliability decreases due to multiple kinematic pairs and high coordination requirements
Solution Approach 1:
The patent extracts and eliminates the complex chain mechanism from the system, replacing it with a direct drive structure where the motor connects directly to the window or door panel through simple mechanical linkages, removing multiple kinematic pairs and coordination requirements while maintaining automatic control capability
Solution Approach 2:
The patent replaces the mechanical chain transmission system with a simplified direct mechanical drive system, where the motor's rotational motion is directly converted to the linear or rotational motion needed for opening and closing doors and windows through simple gears, cranks, or push rods
2Extent of automation
If a chain mechanism is used for force transmission, then automatic control is achieved, but operation stability deteriorates due to strong vibration and frequent faults
Solution Approach 1:
The patent removes the chain mechanism that causes vibration and instability, replacing it with a direct drive system that eliminates the intermediate transmission components responsible for mechanical vibrations and coordination errors, thereby improving operational stability and reducing faults
Solution Approach 2:
The patent incorporates damping elements and shock-absorbing mechanisms in the direct drive system to preemptively counteract vibrations and mechanical shocks during operation, preventing instability before it occurs and ensuring smoother operation
3Extent of automation
If existing automatic door systems are installed, then remote control functionality is partially achieved, but installation becomes troublesome and costs increase due to the need for redecoration
Solution Approach 1:
The patent divides the automatic door and window system into modular, independently installable units that can be added to existing structures without requiring comprehensive redecoration, allowing for phased installation and easier integration into different architectural contexts
Solution Approach 2:
The patent designs a universal mounting system that can be adapted to various door and window types and locations, enabling the same basic mechanism to serve multiple functions and be installed in different configurations without custom fabrication for each application
4Device complexity
If manual doors and windows are used, then the system is simple and cost-effective, but the ability to remotely control or ventilate spaces is lost
Solution Approach 1:
The patent replaces manual operation with an electric motor-driven system that maintains mechanical simplicity through direct drive, eliminating the need for complex transmissions while adding remote control capability through electronic actuation of the simplified mechanical system
Solution Approach 2:
The patent introduces an electronic control system as an intermediary between the user and the mechanical system, allowing remote operation through wireless communication and control interfaces while the mechanical system itself remains simple and direct-drive based
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
The system provides stable, energy-efficient, and secure remote control of diverse doors and windows, enhancing convenience and safety while reducing complexity and costs, allowing for intelligent management of multiple door and window groups.
Implementation Method 1
driving mechanism, preferably a brushless direct current motor
Data Source
AI summary
The present invention provides an intelligent control system for remote control of doors and windows, comprising an intelligent control end, a server and a control terminal of doors and windows. The intelligent control end sends a remote control command to the control terminal of doors and windows through the server. The control terminal of doors and windows processes the received remote control command and executes a corresponding control action to finish remote control of doors and windows, wherein the control terminal of doors and windows comprises an MCU. The MCU is connected with a signal receiving/transmission component, a mechanical component for control of doors and windows, a detection component of doors and windows, a position detection component of doors and windows and an anti-theft component. In the intelligent control system for remote control of doors and windows of the present invention, the intelligent control end sends a control signal to a remote control terminal of doors and windows for realizing remote control of doors and windows. The intelligent control system has the characteristics of simple system design, ultra-low power consumption and large-scale use, and can be used for remote control of diversified doors and windows like skylights, flat open doors and windows, doors and windows opened inside and outside, sliding doors and windows, etc.