Abstract
At present, when designing a Light Emitting Diode (LED) luminaire, different strategies of development are followed depending on the size of the company. Since on LED datasheets there is only limited information provided, companies designing LED luminaires spend a lot of effort gathering the required input of LED details to be able to design reliable products. Small and medium size enterprises (SMEs) do not have the bandwidth to gather such input and solely rely on empirical approaches leading to approximated luminaire designs, while larger companies use advanced hardware and software tools to characterize parts, design versions, and finally optimize all design steps. In both cases, considerable time and money is spent on prototyping, sampling, and laboratory testing. Digitalization of the complete product development (also known as Industry 4.0 approach) at all integration levels of the solid state lighting (SSL) supply chain would provide the remedy for these pains. The Delphi4LED European project aimed at developing multi-domain compact models of LED (for a consistent, combined description of electronic, thermal, and optical properties of LEDs) as digital twins of the physical products to support virtual prototyping during the design of luminaires. This paper provides an overview of the Delphi4LED approach aimed at supporting new, completely digital workflows both for SMEs and larger companies (Majors) along with some comparison with the traditional luminaire design. Two demonstration experiments are described: One to show the achievable benefits of the approach and another one to demonstrate the ease of use and ability to be accommodated in a larger scale product design for assessing design choices like e.g., number and type of LEDs versus electrical/thermal conditions and constraints, in a tool agnostic manner.
Highlights
The past two decades have seen growing adoption of light emitting diodes (LEDs) thanks to their improved efficacy and decreasing cost
The present paper proposes present paper proposes a generic methodology applicable to situations ranging from LED packages a generic methodology applicable to situations ranging from LED packages up to complete luminaires up to complete luminaires by creating a “digital twin” that properly represents its real, physical by creating a “digital twin” that properly represents its real, physical counterpart for simulation based counterpart for simulation based experiments and optimization
Based on prior characterisation of LEDs foreseen for the project demonstrators consortium members specialised in LED testing and modelling created a samples was considered in a simplified way: Instead of creating Monte Carlo models from parameter distributions identified for a larger population of LEDs the model parameter sets obtained for the actual measured LED samples
Summary
The past two decades have seen growing adoption of light emitting diodes (LEDs) thanks to their improved efficacy and decreasing cost. According to the Strategies in Light conference in 2019, the trend is to move towards LED components commoditization, and the lighting industry is entering. 28 28 entering another era with more demanding customers, market acceleration, and integration that another erabeyond with more demanding customers, market 4.0, acceleration, and integration that extends extends lighting (e.g., sensors). Industry the fourth industrial revolution thatbeyond exploits lighting Industry. 4.0, the fourth industrial revolution that exploits automation automation and data exchange, further facilitates acceleration and customization. The lighting competitive, lighting industry should embrace the digitalized early phase of development, industry should embrace digitalized early space phase for of development, which is currently its infancy, which is currently in itsthe infancy, to create new innovation beyond lightingin(e.g. LiFi). A toprimary create space for new innovation beyond lighting
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