Orclever Proceedings of Research and Development

A Secure Production Model Marked with Pigment Technology for Traceability and Sustainability in the Textile Supply Chain

Seda Keskin Atak — 2025-06-30

The textile industry is of strategic importance in terms of economic growth and employment. Nevertheless, the industry's environmental impact and sustainability requirements are increasingly emphasising the significance of transparency and traceability. In this study, traceable pigmented fibres from FibreTrace were blended with organic cotton fibres at different ratios to produce yarn and fabric, which were then used to make t-shirts for the Lacoste brand. The presence of the pigment was verified at all stages of the production process using the FibreTrace Scanning Device. The findings indicate that pigments do not have a detrimental effect on production processes; rather, traceability contributes to sustainability goals. The results of the study demonstrate that the extensive implementation of traceability technologies within the textile supply chain confers considerable benefits with regard to environmental and social responsibility.

Artificial Intelligence-Based Mobile Vehicle Entry-Exit Monitoring Application and License Plate Recognition System

Ahmet Ertan — 2025-06-30

This study proposes the development of an Optical Character Recognition (OCR)-based system designed to automatically identify and record the license plates of vehicles entering and exiting transfer hubs. The primary objective is to reduce manual labor and mitigate data entry errors commonly encountered in traditional plate registration processes, thereby enhancing the accuracy and efficiency of vehicle access monitoring. The system architecture comprises real-time image acquisition via a mobile device camera and license plate character recognition utilizing Google ML Kit. The extracted license plate data, along with corresponding timestamps, are systematically stored in a database to enable comprehensive reporting and monitoring functionalities. Through this approach, vehicle flow within transfer centers can be effectively tracked, and operational workflows can be streamlined and digitalized to improve overall process efficiency. The results obtained from the conducted pilot study not only confirm the overall functionality of the system but also demonstrate that environmental conditions and the quality of the license plate surface have a direct impact on system performance.

CoolFeel: Footwear Lining Design Providing a Cooling Sensation through Dual-Component Finishing

Baris Bekiroglu — 2025-06-30

The CoolFeel project introduces an innovative footwear lining design that provides a tangible cooling sensation, enhancing user comfort in hot weather or during intense physical activity. This design incorporates the Cool In dual-component finishing system developed by Proneem, applied via spray coating onto the surface of the shoe lining. The treatment is mechanically activated and engineered to generate a localized temperature-reducing effect under humid conditions.

The project aims to integrate this technology into footwear manufacturing processes while ensuring material compatibility, production efficiency, and consumer-level performance. Laboratory evaluations conducted before and after repeated washing cycles revealed that the treated lining maintains similar absorption speed compared to untreated samples, yet demonstrates superior moisture diffusion rates (up to 1.37 times faster when unwashed) and infrared-measurable surface temperature reduction of up to 1.4°C. Even after ten washing cycles, the system retained moderate performance with a 0.5°C temperature drop and over 1.07x faster diffusion rate. CoolFeel represents a sustainable and consumer-driven innovation that addresses thermophysiological discomfort in footwear. It offers a viable solution for brands seeking to differentiate through functional design and enhanced user experience, particularly in warm climates and performance-driven market segments.

Downlighter Type Automotive Lighting with PWM Based Two Pin LED Driver Design

Barış İspir — 2025-06-30

In the automotive industry, exterior lighting systems play a critical role in enhancing vehicle safety and improving aesthetic visibility. This study focuses on the advantages offered by powering Downlighter-type LED lighting systems—specifically positioned at the rear of commercial vehicles—using a PWM (Pulse Width Modulation) source. In modern vehicle design, exterior lighting systems have become a key component both for safety and aesthetic purposes. Especially for commercial vehicles, providing adequate lighting during loading and unloading operations at the rear door area directly impacts operational safety.

Downlighter-type LED systems, which offer homogeneous light distribution at the rear, enhance environmental visibility and contribute to safety, while also providing an aesthetically pleasing appearance. The high energy efficiency, long lifespan, and lower power consumption offered by LED technology ensure high performance. Additionally, thanks to their dimmable feature, these systems allow light intensity to be adjusted according to different usage scenarios, resulting in energy savings and offering a flexible lighting solution to the user.

Downlighter-type LED lighting systems present a significant solution in the automotive industry in terms of both safety and cost-effectiveness. In particular, they enhance the safety of night-time operations in commercial vehicles by providing lighting support, while their energy efficiency and adjustable brightness meet the needs of modern automotive designs. This study discusses a PWM (Pulse Width Modulation)-based LED driver application designed for use in vehicle exterior lighting systems. The system is specifically developed for Downlighter-type LED lighting solutions located at the rear of commercial vehicles. The design offers advantages not only in terms of precise light intensity control but also in terms of energy efficiency and cost-effectiveness. Exterior lighting systems in the automotive industry are of great importance for increasing safety and ensuring safer night-time operations. In commercial vehicles where loading and unloading operations are performed at the rear, Downlighter-type LED systems that provide uniform light distribution play a critical role. In this context, there is an increasing need for energy-efficient systems with effective light intensity control. The designed PWM-based LED driver can precisely control LED brightness by adjusting the pulse width. This control technique enables high lighting performance with low energy consumption. With its dimmable feature, the system allows flexible adjustment of light levels based on usage scenarios while also saving energy. Moreover, instead of the conventional 3-pin circuit topology, a 2-pin design was preferred, and the sizes of the input filter capacitors used in the circuit were optimized, resulting in PCB space savings and cost reduction. These improvements provide significant economic benefits in high-volume automotive production. The PWM-controlled LED driver design is a technically and economically suitable solution for Downlighter-type automotive exterior lighting systems. The ability to precisely adjust light intensity, high energy efficiency, and low system cost increase the product’s appeal for both OEMs and end users.