Wireless Actuator Pairing with Signal Strength Thresholds
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Solution Overview
Problem
Existing wireless transmitter systems for controlling closing installations, such as garage doors, lack secure visual control due to signal dispersion and obstacles, leading to unreliable operation.
Innovation Solution
A method for pairing an actuator with a wireless transmitter that involves setting a specific maximum activation distance based on visibility and other parameters, ensuring only transmitters capable of transmitting a strong signal within this range are paired, thereby guaranteeing control of the installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed maximum range of ten meters is used for transmitter control, then visual control is guaranteed in some configurations, but the system becomes unsuitable for other configurations where the closing installation is visible at different distances
Solution Approach 1:
The patent implements dynamic range adjustment by allowing the maximum control distance to be individually configured for each transmitter based on the specific installation environment. During pairing, the system measures signal strength at different distances and determines an optimal maximum range that ensures visual control while adapting to the particular configuration, whether 5 meters, 10 meters, or 20 meters visibility distance.
Solution Approach 2:
The system changes the parameter of control range dynamically by measuring received signal strength indicator (RSSI) values during the pairing process. The maximum range is determined based on signal strength thresholds and can be individually set for each transmitter-receiver pair, allowing the system to adapt to different installation scenarios while maintaining reliable visual control.
2Reliability
If the receiver sensitivity is adjusted with a potentiometer to limit transmitter range, then control range is reduced for all transmitters, but it is not possible to select a different range for each transmitter
Solution Approach 1:
The patent segments the control range configuration by transmitter, allowing each transmitter to have its own maximum range setting stored in memory. Instead of a global sensitivity adjustment that affects all transmitters uniformly, the system independently configures and stores range parameters for each transmitter-receiver pair based on individual pairing measurements and installation requirements.
3Reliability
If a threshold value for signal power is used to block control beyond a certain distance, then visual control is enforced, but the threshold value is not adjusted according to the visibility of the closing installation
Solution Approach 1:
The system uses feedback from RSSI measurements during the pairing process to automatically determine appropriate threshold values for each installation. The receiver measures signal strength at various distances, and based on these measurements, the system establishes threshold values that enforce visual control while being adapted to the specific visibility conditions of each installation configuration.
Data Source
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AI summary
The invention relates to a method of pairing an actuator with at least one wireless transmitter within a closing installation, this installation comprising a receiver of the signals emitted by the transmitter.The method includes steps of placing (50) the transmitter at a determined distance from the receiver and sending (52) from the transmitter to the receiver an initial configuration signal; using the receiver, collecting (54) a transmitter identifier contained in the configuration signal and determining (54) the power of this signal; and comparing (56) the determined power of the signal with a predetermined threshold value; if the determined power of the signal is greater than the predetermined threshold value, storing (58) the transmitter identifier and the value of this power in a memory associated with the actuator; and if the determined power of the signal is less than the threshold value, rejecting (60) the transmitter as incompatible with the desired operation for the installation.