Home Automation Sensor Commissioning via Light Threshold
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Solution Overview
Problem
Minimalistic sensors in home automation systems without buttons or triggers pose challenges in reliable identification and addressing during commissioning, as existing methods can result in false signals due to accidental activation.
Innovation Solution
A method involving programming sensors to react only to significant light intensity changes, sending a signal representative of their MAC address to configuration software, ensuring accurate and efficient identification by correlating MAC addresses with physical locations, thereby minimizing false signals and ensuring reliable commissioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If sensors are made minimalistic without buttons or triggers, then device complexity is reduced and design is simplified, but reliability of identification during commissioning deteriorates due to inability to deliberately activate the sensor
Solution Approach 1:
A light source is introduced as an intermediary tool to activate the sensor during commissioning. The light source serves as a temporary activation mechanism that doesn't require modifying the sensor design, allowing deliberate activation while maintaining minimalistic sensor design. The light source acts as a mediator between the commissioning process and the sensor activation.
2Ease of operation
If sensors respond to any light intensity change, then ease of operation during commissioning is improved, but measurement precision deteriorates due to false signals from accidental illumination
Solution Approach 1:
The sensor's response threshold parameter is changed from detecting any light intensity change to detecting only significant light intensity changes exceeding a predefined threshold. This parameter adjustment filters out minor fluctuations caused by accidental illumination while preserving the sensor's ability to respond to deliberate activation during commissioning.
3Reliability
If threshold value for light intensity change is set high, then false signals are reduced improving reliability, but ease of operation worsens due to difficulty in triggering sensor response
Solution Approach 1:
The commissioning system uses the sensor's own light detection capability to activate it during commissioning. By using light as the activation mechanism, the system leverages the sensor's inherent function rather than requiring external activation methods, maintaining ease of operation while ensuring reliable differentiation between deliberate and accidental activation.
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
This approach ensures reliable and efficient commissioning of sensors by preventing false signals and accurately identifying sensors through controlled light intensity changes, enhancing the reliability and speed of the commissioning process.
Implementation Method 1
exposing the at least one sensor to a light intensity change from a first light intensity into a second light intensity such that a predefined threshold value of the change is crossed
Data Source
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AI summary
The present invention provides a method for commissioning at least one sensor (10a-10d) in a home automation system. The method comprises physically installing the at least one sensor (10a-10d) in a ceiling or a wall of a building, programming the at least one sensor (10a-10d) by means of configuration software, and addressing the at least one sensor (10a-10d). According to embodiments of the invention, addressing the at least one sensor (10a-10d) comprises exposing the at least one sensor (10a-10d) to a light intensity change from a first light intensity into a second light intensity such that a predefined threshold value of the change is crossed; upon crossing the threshold value of the change, sending a signal from the at least one sensor (10a-10d) to the configuration software of the home automation system, the signal being representative of the MAC address of the at least one sensor (10a-10d), and identifying the at least one sensor (10a-10d) by its MAC address and correlating the MAC address with the physical location of the at least one sensor (10a-10d).