KMITL Expo 2026 LogoKMITL 66th Anniversary Logo

Garbage sorting Systems

Garbage sorting Systems

Abstract

The presented project topic is Garbage Sorting Systems. The purpose is to study the operation and develop a waste sorting system that can automatically detect the type of waste using a proximity sensor to separate the types of metal and non-metal waste, as well as an ultrasonic sensor to check the amount of waste in the bin. If the amount of waste exceeds the specified amount, the system will send a notification to the communication device connected to the system, such as a smartphone or computer. The operation of the system is designed to increase the efficiency of waste management, reduce the burden of manual waste sorting, and promote recycling. This system can be applied in various places, such as educational institutions or public places, to help reduce the amount of waste that is not properly separated and increase the opportunity to reuse waste.

Objective

เนื่องจากทางภาควิชาวิศวกรรมอิเล็กทรอนิกส์ มีจุดมุ่งหมายให้นักศึกษาภายในภาควิชามีความรู้ความสามารถ ความเข้าใจ และประสบการณ์ในการปฏิบัติงานโดยมีวัตถุประสงค์เพื่อช่วยในการเสริมสร้างการเรียนรู้ควบคู่กับทฤษฎี และยังมีบทบาทสำคัญในชีวิตประจำวันอย่างมากเพื่ออำนวยความสะดวกต่างๆ เนื่องจากในปัจจุบันในกระบวนการผลิตทางอุตสาหกรรมได้มีการนำเอาอุปกรณ์ที่มีความทันสมัยเข้ามาใช้งานมากขึ้นโดยนำเอาเทคโนโลยีที่ทันสมัยเข้ามาประยุกต์ใช้ทางด้านอิเล็กทรอนิกส์ โครงงานนี้ประกอบไปด้วยเซ็นเซอร์ Proximity และเซ็นเซอร์ Ultrasonic ซึ่งเป็นอุปกรณ์ตรวจจับ คัดแยกวัตถุประเภทโลหะ อโลหะและวัดตรวจปริมาณขยะภายในถังขยะ เพื่อให้ชิ้นงานสามารถทำงานได้ตามขอบเขตที่กำหนด ซึ่งเครื่องคัดแยกขยะจะทำงานเมื่อมีการทิ้งขยะลงถัง เซ็นเซอร์จะทำการแยกประเภทของขยะตามที่ได้กำหนดไว้ จากนั้นจะมีการตรวจสอบปริมาณขยะภายในถัง หากปริมาณขยะเกินกำหนด ระบบจะส่งการแจ้งเตือนไปยังอุปกรณ์สื่อสารที่เชื่อมต่อกับระบบ

Other Innovations

Serene Arbor Park

คณะเทคโนโลยีการเกษตร

Serene Arbor Park

The design of a 50-rai public park in the Lat Krabang district of Bangkok aims to provide a recreational space for urban residents in Lat Krabang and nearby areas. The focus is on user groups such as students, university students, and working individuals, incorporating the concept of Universal Design to ensure that everyone in society can use the space equally. However, there is still an emphasis on creating active recreational areas to meet the sports and exercise needs of students, university students, and working individuals. The design of the Lat Krabang area, which is a low-lying region resembling a basin, includes features for water retention, water management, and water treatment for use within the park. The area will focus on exercise, sports, running, walking, relaxation, and educational garden spaces.

Read more
Aggregated gallic acid-modified platinum nanoparticles as colorimetric sensor for tannic acid detection in beverages based on displacement phenomenon

คณะวิทยาศาสตร์

Aggregated gallic acid-modified platinum nanoparticles as colorimetric sensor for tannic acid detection in beverages based on displacement phenomenon

A new colorimetric assay for the rapid detection of tannic acid in beverage samples based on displacement phenomenon of aggregated gallic acid-modified platinum nanoparticles is developed for the first time. PtNPs were functionalized with gallic acid, promoting the formation of the green-hued aggregated nanoparticles. While colorimetry offers a rapid method for identifying tannic acid, challenges remain in sensitivity and accuracy of detection on the PtNPs colorimetric probe, particularly in the presence of anthocyanin interferences. To address this, we developed a sample preparation method to degrade anthocyanin in beverages. Tannic acid was easily displaced onto the gallic acid-coated PtNPs surfaces, causing dispersion and resulting in a visible color change from green to orange−brown. Under the optimal conditions, the colorimetric sensor exhibited a linear response in the range of 1−2,000 µmol L−1 (R2 = 0.9991). The limit of detection (LOD) and the limit of quantification (LOQ) were found at 0.02 and 0.09 µmol L−1, respectively. The proposed sensor expressed superior selectivity over other interfering substances and demonstrated excellent precision with a relative standard deviation (RSD) of 1.00%−3.36%. More importantly, recoveries ranging from 95.0−104.7% were obtained, indicating the capability of proposed colorimetric sensor to detect tannic acid rapidly and accurately in real beverage samples.

Read more
A Study of Sound Absorption Material Using Rubber Powder from Old Tires

คณะวิศวกรรมศาสตร์

A Study of Sound Absorption Material Using Rubber Powder from Old Tires

In Thailand, the quantity of old tires has been increasing annually, posing a significant environmental challenge due to their non-biodegradable material. However, old tires contain an internal porous structure, which suggests their potential application as sound-absorbing materials. Porosity is a key characteristic that enables materials to trap sound waves, making them effective for noise reduction. Therefore, this study aims to investigate and develop sound-absorbing materials from old tire rubber powder. The methodology involved mixing old tire powder with fresh latex at a ratio of 1:2, followed by drying at a temperature of 120°C for four hours. Subsequently, the physical properties influencing sound absorption, including density, porosity, and water absorption, were analyzed. The results indicated that the sound-absorbing material produced from old tire rubber powder showed a density of 0.96 g/cm³, a porosity value of 0.45, and a water absorption of 11.03%. Therefore, the findings suggest that old tire rubber powder has the potential to be effectively utilized as a sound-absorbing material.

Read more