Door Motor Control With Speed Feedback for Multi-Voltage Operation
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Solution Overview
Problem
Existing automated door control systems require complex control systems and electronics, and significant customization to accommodate different motor models with varying ratings and operating parameters.
Innovation Solution
A door control system that includes a motor, an encoder, and a controller that adjusts control signals based on target and current speeds, allowing for flexible operation with various input voltages and motor types, and incorporates a power supply circuit to transform input signals to suitable magnitudes for the controller and encoder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If AC motors are used for automated door control systems, then door automation function is achieved, but control system complexity and electronics requirements increase
Solution Approach 1:
The patent replaces complex AC motor control electronics with a simpler DC motor control system. The controller uses basic electronic components and logic circuits to control DC motor speed and direction, eliminating the need for complex AC motor control electronics, variable frequency drives, and associated sensing systems.
Solution Approach 2:
The patent changes the motor type from AC to DC, which fundamentally simplifies the control system. DC motors can be controlled by varying voltage or current parameters through simple resistive control or basic electronic switches, whereas AC motors require complex frequency and voltage control mechanisms.
2Adaptability or versatility
If different motor models with varying ratings are accommodated, then system versatility is improved, but customization requirements increase
Solution Approach 1:
The patent designs a universal controller that can work with various DC motor models by adjusting control parameters such as voltage, current, and speed settings. The controller incorporates adjustable parameters and configuration options that allow it to adapt to different motor ratings without requiring custom hardware modifications for each motor model.
Solution Approach 2:
The control system incorporates dynamic parameter adjustment capabilities, allowing the controller to automatically or manually adapt its operating parameters based on the specific motor model being used. This enables the system to accommodate varying motor ratings through software or configuration-based adjustments rather than hardware customization.
Data Source
Figure 1A~1B
Figure 1C
Figure 1D~1E
AI summary
A door control system is provided. The control system includes a controller configured to control a door via a motor. The system may accept any input signal and transform the signal to a suitable input signal for the components of the system. The controller may receive commands to actuate the motor to effect movement in the door. The controller may transmit control signals to the motor and adjust the control signals based on the current speed. The system may include a switching element which may create a short circuit condition at motor terminals to effect braking. The system may include a feedback loop to adjust control signals sent to the motor.