Removable Motorized Roller Shade with Integrated LED and Encoder
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Solution Overview
Problem
Existing motorized roller shades are bulky, lack removable tubular tubes and shade fabric, have limited functionalities, and require external batteries and wired remote controls, leading to inefficiencies and increased costs.
Innovation Solution
A compact, programmable, and removable motorized roller shade with built-in color LED night lights, rechargeable batteries, and a quadrature incremental encoder for precise position control, allowing for automatic shade operation, programmable positions, and wireless remote control functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional motorized roller shades use non-rechargeable batteries and wired remote controls, then the system can operate motorized functions, but the device becomes bulky and requires frequent battery replacement and external components
Solution Approach 1:
The patent combines multiple previously separate components into an integrated unit: rechargeable lithium batteries are built into the motor housing, the wireless receiver is integrated into the control circuit board, and the remote control communicates wirelessly without physical connections. This merging eliminates external battery compartments, removes wired connections, and reduces the number of separate components the user must manage.
Solution Approach 2:
The motor housing serves multiple functions: it contains the motor mechanism, houses the rechargeable lithium batteries, integrates the wireless receiver, and provides structural support. The control circuit board handles multiple tasks including motor control, wireless signal reception, and battery management. This multi-functionality reduces the need for separate dedicated components.
2Ease of operation
If motorized roller shades lack programmable features and automatic operation, then the control system remains simple, but user convenience and automation capabilities are limited
Solution Approach 1:
The system performs preliminary actions by pre-programming shade positions and automatic operation schedules. Users can program the shade to automatically open at sunrise and close at sunset, or stop at predetermined positions based on time of day. The control system anticipates user needs by executing pre-set commands without requiring manual intervention for each operation.
Solution Approach 2:
The wireless remote control system provides feedback through LED indicators on the receiver that display signal reception status and battery charge levels. The system monitors motor position through encoder feedback and automatically adjusts for drift using home position correction algorithms. This feedback mechanism enables automatic operation while maintaining system simplicity through intelligent control.
3Adaptability or versatility
If the tubular tube and shade fabric are fixed and non-removable, then assembly is simpler, but portability and adaptability to different locations are reduced
Solution Approach 1:
The roller shade system is divided into separable segments: the tubular tube can be detached from the mounting bracket, the shade fabric can be removed from the tube, and the lithium battery pack can be accessed independently. This segmentation allows users to disassemble the system for portability, store components separately, or replace individual parts without affecting the entire assembly.
Solution Approach 2:
The system transitions from a static fixed assembly to a dynamic reconfigurable structure. The tubular tube features quick-release mechanisms that allow easy attachment and detachment. The shade fabric can be rolled up and secured in different positions. This dynamic design enables the system to adapt to different installation locations and user needs while maintaining structural integrity during operation.
4Measurement precision
If position encoding uses reed sensors and end-of-travel stop bars, then the system can detect shade position, but calculation errors and inaccurate positioning occur due to multiple conversion steps
Solution Approach 1:
The patent extracts and eliminates the complex multi-step calculation system involving reed sensors, encoder pulse counting, and multiple conversion factors. Instead, it implements a direct absolute encoder that provides immediate position feedback without requiring mathematical conversions or accumulation calculations, thereby removing the source of positioning errors.
Solution Approach 2:
The system replaces the mechanical reed sensor and encoder pulse-counting mechanism with an electronic absolute encoder that directly outputs position information. This substitution eliminates the need for mechanical stop bars, reed switch assemblies, and complex pulse-to-position conversion algorithms, providing more accurate and reliable position measurement.
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 solution provides a reliable, efficient, and user-friendly motorized roller shade with automatic features, energy efficiency, and reduced maintenance costs, enhancing user convenience and safety.
Implementation Method 1
quadrature incremental encoder for precise position control
Implementation Method 2
programmable wireless adjustment of the photoresistor light level
Implementation Method 3
built-in color LED night lights
Implementation Method 4
built-in rechargeable lithium batteries with safety protection circuit
Data Source
AI summary
Programmable and removable automatic motorized roller shade with color LED night lights is a fully automatic programmable motorized window shade incorporates many functionalities including automatic shade open and close, automatic programmable shade position or shade length position, foldable and removable tubular tubes, rechargeable and programmable wireless remote controls, built-in matching color LED night lights and easy removable color shade fabric. The system automatically open and close depending on the programming parameters, software timers and the light level detects through the photoresistor sensor which is programmed and controlled by the micro controller. The system consisting of two or more tubular tubes joined together with at least one set of quick connecting and disconnecting couplings creating a single removable and foldable tubular tube. The number of tubular tubes and couplings needed to create a single tubular tube are depending on the physical window width the shade fabric intents to cover. The built-in internal color LED night lights, external color LED night lights and matching removable color shade fabric brings to life an exciting colorful environment in the dark of night. Rechargeable lithium batteries provide necessary continuous backup power and programmable wireless receiver provides manual and wireless remote controls programming and manually operating of the system.