Closure Motor Control Circuit for Low-Power Signal Recognition
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Motorized closure devices in buildings face challenges with high energy consumption and code recognition issues, particularly when using solar energy, leading to oversized energy storage needs and unreliable remote control signal recognition.
Innovation Solution
A motor control device with an auxiliary control circuit and transceiver that remains powered to store and retransmit control signals, reducing overall energy consumption and enabling immediate code recognition without repeated remote control activations, while using a DC-DC charger and DC-AC converter to efficiently power the motor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the main control circuit and electronic power supply circuit are permanently powered to recognize coded control signals, then reliable code recognition is achieved, but energy consumption increases and solar energy storage becomes oversized
Solution Approach 1:
The auxiliary control circuit performs preliminary actions by permanently monitoring for control signals and storing received coded signals in memory before the main control circuit needs to operate. This allows the system to wake up with a pre-captured signal, eliminating the need for continuous powering of the main control circuit while ensuring reliable signal recognition is ready when needed.
Solution Approach 2:
The auxiliary control circuit acts as an intermediary between the remote control and the main control circuit. It receives, stores, and manages control signals, then transfers them to the main control circuit when activated. This intermediary role allows the main control circuit to remain dormant while still enabling reliable coded signal recognition through the auxiliary circuit's continuous monitoring capability.
2Volume of stationary object
If the energy storage element capacity is reduced to fit in the motorized box, then device volume is reduced, but autonomous operation duration decreases
Solution Approach 1:
The system uses periodic action by keeping only the auxiliary control circuit continuously powered while the main control circuit operates intermittently. The auxiliary circuit handles continuous signal monitoring and storage, then transfers control to the main circuit only when signals are received and need execution. This periodic operation pattern significantly reduces average energy consumption, allowing smaller energy storage elements to provide sufficient autonomous operation duration.
3Use of energy by moving object
If the control circuit is powered down during rest periods to reduce consumption, then energy saving is achieved, but the ability to recognize coded control signals is lost
Solution Approach 1:
The control system is segmented into two distinct functional parts: the auxiliary control circuit that remains continuously powered for signal monitoring and storage, and the main control circuit that is powered down during rest periods. This segmentation allows each part to perform its specific function optimally - the auxiliary circuit ensures continuous signal recognition capability with minimal energy use, while the main circuit conserves energy by remaining dormant until needed.
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 allows for low-volume, autonomous operation with reduced energy consumption, enabling efficient solar energy use and reliable code recognition, thus minimizing the size of the energy storage and enhancing the device's autonomy.
Implementation Method 1
a solar electrical energy source such as a photovoltaic solar panel delivering a direct electrical voltage
Implementation Method 2
a remote control, adapted to generate and transmit by air the control signals to the first control signal receiver
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A device for controlling the motor of a closure or blocking device (10) in a building, comprising an electronic power supply circuit (5) for powering an electric motor (3) from an electrical power source (100) according to control commands (60), a main control circuit (6) associated with a first control signal receiver (61), a remote control (8) for generating and transmitting control signals (7). Monitoring means (80) inhibit the power supply to the main control circuit and to the electronic power supply circuit after the control commands have been executed, their power supply being reactivated upon receipt of a control signal. A constantly powered control signal transceiver (81) receives and stores the control signal and subsequently sends, to the first control signal receiver, after a delay time, the stored control signal (70). The main control circuit recognises the frame of the stored control signal and generates the control command sent to the power supply circuit.