Lighting Network Node Localization Using Acoustic Commissioning
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Solution Overview
Problem
Existing lighting network commissioning methods are labor-intensive and prone to errors, lacking flexibility and reliability in various operating environments.
Innovation Solution
A lighting system utilizing sound-emitting and sound-receiving nodes to estimate node locations via sound characteristics, employing a processing apparatus to determine distances and triangulate positions based on sound attenuation and patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual configuration is used for lighting network commissioning, then identity and location information can be provided to nodes, but the process becomes labor-intensive and error-prone
Solution Approach 1:
The patent replaces manual mechanical configuration processes with acoustic field-based automated detection. Sound-emitting nodes transmit acoustic signals that are captured by sound-receiving nodes, enabling automatic extraction of location information without manual intervention. This substitutes the mechanical manual configuration system with an acoustic measurement system.
Solution Approach 2:
The lighting network nodes perform self-configuration by automatically receiving, processing, and extracting location information from acoustic signals. The nodes autonomously determine their identities and locations through the commissioning procedure without requiring external manual configuration,实现ing self-service commissioning.
2Ease of operation
If automated commissioning via wireless communication is used, then labor effort is reduced, but flexibility and reliability in various operating environments are insufficient
Solution Approach 1:
The patent changes the physical parameter basis for commissioning from electromagnetic radio signals to acoustic sound waves. Acoustic signals have different propagation characteristics that provide better environmental adaptability, enabling reliable commissioning in conditions where wireless communication may fail. The system measures acoustic signal parameters (arrival time, intensity) to determine node locations.
3Loss of information
If manual configuration is used for large lighting systems, then node information can be recorded, but the process becomes unfeasible and time-consuming
Solution Approach 1:
The acoustic commissioning procedure enables continuous automated information collection across all lighting network nodes. Sound-emitting nodes continuously transmit acoustic signals during the commissioning phase, allowing sound-receiving nodes to continuously capture and process location data from multiple nodes simultaneously, dramatically reducing total commissioning time compared to sequential manual configuration.
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
Facilitates automated or semi-automated lighting network commissioning with accurate node location estimation, enabling efficient installation, configuration, and maintenance.
Implementation Method 1
each of the sound-emitting nodes is arranged to operate the respective sound generator to emit one or more sounds
Implementation Method 2
each of the sound-receiving nodes is arranged to operate the respective sound sensor to capture the respective one or more sounds emitted from at least one of the plurality of sound-emitting nodes
Implementation Method 3
estimating respective locations of the plurality of lighting network nodes in said one or more spaces based on characteristic of sounds received at the one or more sound-receiving nodes in relation to characteristics of the respective sounds emitted from the plurality of sound-emitting nodes
Data Source
Figure 1A~1B
Figure 1C~1D
Figure 2~3
AI summary
According to an embodiment, a lighting system (100) for illuminating one or more spaces is provided, the lighting system (100) comprising a plurality of lighting network nodes (110) and a processing apparatus (120), wherein the plurality of lighting network nodes (110) are communicatively coupled to each other via a lighting control network (130) and wherein the processing apparatus (120) is communicatively coupled to at least one of the plurality of lighting network nodes (120), wherein the plurality of lighting network nodes (120) comprises a plurality of sound-emitting nodes that each comprise a respective sound generator and one or more sound-receiving nodes that each comprise a respective sound sensor, wherein each of the sound-emitting nodes is arranged to operate the respective sound generator to emit one or more sounds, wherein each of the sound-receiving nodes is arranged to operate the respective sound sensor to capture the respective one or more sounds emitted from at least one of the plurality of sound-emitting nodes, and wherein the processing apparatus (120) is arranged to estimate respective locations of the plurality of lighting network nodes (110) in said one or more spaces based on characteristic of sounds received at the one or more sound-receiving nodes in relation to characteristics of the respective sounds emitted from the plurality of sound-emitting nodes