The primary goal of this research is to develop a cost- effective, reliable, and scalable automated sorting
system. As industries continue to demand faster, more efficient production cycles, manual sorting methods
struggle to keep pace with the growing needs of modern manufacturing. Manual processes are time-
consuming, prone to human error, and inefficient when dealing with high-volume production. In contrast, au-
tomation offers the potential for continuous operation, greater speed, and higher accuracy, while reducing
operational costs and improving product quality.
The key technology used in this system is Infrared (IR) sensing, which provides a non-contact method for
detecting objects as they move along the conveyor. IR sensors are commonly used in automated systems for
object detection and counting, owing to their simplicity, low cost, and reliability. In the proposed system, IR
sensors will detect the presence and size of items as they pass, sending signals to the Arduino UNO
microcontroller, which processes the data and actuates a sorting mechanism based on predefined criteria.
Additionally, the integration of a PLC enables more ad- vanced control functions, such as motor speed
regulation and synchronization between the conveyor belt, sensors, and sorting mechanism. This hybrid
approach, combining the flexibility of Arduino with the robustness of PLC systems, provides a scalable
solution that can be adapted to various production environments.
The system’s performance will be evaluated based on key metrics such as sorting accuracy, operational speed,
system reliability, and error rates. This research not only seeks to demonstrate the feasibility of automated
sorting on conveyor belts but also aims to contribute valuable insights into the application of IR sensors,
microcontrollers, and PLCs in industrial automation.
By automating the sorting and counting processes, the proposed system will offer industries a reliable, cost-
effective solution that improves production throughput and quality while reducing human intervention.
Ultimately, this paper highlights the potential of automation technologies in transforming man- ufacturing
processes, providing a pathway toward smarter, more efficient industrial operations.
LITERATURE REVIEW
Automation in manufacturing and material handling has seen significant advancements over the last few
decades. With the advent of Industry 4.0, there has been a profound shift towards integrating cyber-physical
systems, the Internet of Things (IoT), and automation technologies. Conveyor belt sys- tems, which have been a
vital component in industrial material handling, have greatly benefited from these advancements, leading to
the development of automated systems capable of performing sorting, counting, and categorizing tasks with
high precision and speed. This section reviews the state-of- the-art developments in conveyor belt systems, IR
sensors, microcontrollers, and PLCs in the context of automated sorting and counting.
Automation in Industry
The rise of automation has transformed industrial practices, reducing reliance on manual labor and
improving speed, accuracy, and productivity. According to Vukovic´ et al. [1], au- tomation has significantly
enhanced manufacturing efficiency, particularly in repetitive tasks such as sorting, counting, and quality
control. Industrial automation technologies, including robotics and programmable logic controllers (PLCs),
have been essential in optimizing production processes and improv- ing consistency. Automated systems not
only reduce human errors but also operate continuously without fatigue, thereby increasing throughput and
ensuring consistent product quality. Automation technologies in material handling systems are crucial for
industries such as automotive manufacturing, lo- gistics, and food processing, where efficiency and speed
are paramount. As manufacturers aim to scale production while maintaining high quality, automation
becomes essential for ensuring that the growing demand for faster production cycles can be met without
compromising product standards.
Conveyor Belt Systems in Automation
Conveyor belts are integral to automated material handling systems. They are designed to transport goods