JECCOM: International Journal of Electronics Engineering and Applied Science

Design Of Temperature Control Device In Milk Pasteurization Process With High Temperature Short Time (HTST) Method Using PID Controller

Chintia Rahma Rahayu, Yultrisna Yultrisna, Herizon Herizon, Muhammad Rohfadli — Tue, 10 Sep 2024 00:00:00 +0000

Milk is one of the foods that contain a number of highly nutritious nutrients. The content of protein, glucose, lipids, mineral salts, and vitamins with a pH of 6.8 causes microorganisms to grow easily in milk. Microorganisms that develop in milk will cause the milk to spoil. Therefore, it is necessary to process milk in order to maximize the quality and durability of milk, one of which is by heating milk (pasteurization). The pasteurization device is designed using a MAX6675 thermocouple sensor to measure the temperature of the milk during the pasteurization process where the temperature is controlled by a PID (Proportional Integral Derivative) controller with predetermined Kp, Ki, Kd parameters. The parameters obtained for PID control are Kp = 42, Ki = 3.5, Kd = 9. In testing the pasteurization device applying the High Temperature Short Time (HTST) method with a setpoint of 72 ℃ for 15 seconds with the time needed to reach the setpoint value for 29 minutes. Temperature readings using MAX6675 thermocouple sensors produce an average error of 0.5% when compared to national standard measuring instruments. Pasteurized milk can last for 3 days at 4-10℃ and for 4 hours at room temperature or around 21-25℃.

Parking Identification System with Integration of Optical Character Recognition (OCR) and Radio Frequency Identification (RFID)

Raihan Fadhil Raihan, Hendrick Hendrick, Novi Novi, Gwo -Jiun Horn — Wed, 11 Sep 2024 00:00:00 +0000

The Indonesian National Police (Polri) reported a significant increase in the number of crime cases during the period January - April 2023. Based on these conditions, an innovative security system is needed that can reduce the risk of motor vehicle theft. This tool is equipped with the help of an IP Camera and runs a program that has been made on programming software using OpenCV Python. The IP Camera is used to capture video that can be accessed on the server to process whether there is a license plate number detected and read the vehicle license plate number. This system integrates Radio Frequency Identification (RFID) and Optical Character Recognition (OCR) technology in the parking system. RFID technology will provide unique identification to each user who will enter the parking area, while OCR is used to read the license plate numbers of vehicles entering the parking area. OCR reading results are also sent to the microcontroller to be displayed on the LCD when the customer enters the parking area. The OCR reading results have a truth accuracy rate of 98.7%.

Reliability Analysis Of Distribution System PT. PLN (Persero) ULP Menggala Feeder Pakis With Section Technique Method And Ria-Section Technique Method

Thu, 12 Sep 2024 00:00:00 +0000

Electricity is a major need today, power companies must ensure the availability of good and sustainable electricity. The continuous and good availability of electric power depends on the reliability of the electric power distribution system. The Section Technique method is a method of assessing system reliability by first dividing the system into several parts and then performing calculations on each part. The RIA-Section Technique method is a combination of RIA techniques and parts that produce results that are close to field data. The reliability indices calculated using this method are SAIFI, SAIDI and CAIDI. The calculation of the 20 kV distribution network reliability index of the Feeder Pakis calculated by the Section Technique method is SAIFI 15.20760 inter / year, SAIDI 17.71123 hours / year and CAIDI is 1.16463 hours / year. For the reliability value of the Feeder Pakis calculated by the RIA-Section Technique method of SAIFI 15.43541 inter / year, SAIDI 17.97542 hours / year and CAIDI of 1.16456 hours / year. The target KPI ULP Menggala in 2023 is SAIFI Value of 6.26 hours/year, SAIDI of 8.43 hours/year and CAIDI of 1.346 hours/year. Meanwhile, the realization of the reliability value of the Feeder Pakis during the period January to December 2023 is SAIFI 3.79 inter / year, SAIDI 3.2 hours / year and CAIDI of 0.845 hours / year

Implementation of Photodiode Sensors in a Line Follower Robot

Herizon Herizon, Milda Yuliza, Rahmat Rahmat — Thu, 12 Sep 2024 00:00:00 +0000

Line follower robot is a type of autonomous robot designed to follow a specific trajectory, usually a black line on a white background. In order for the robot to follow the trajectory accurately, a sensor is required that is able to detect the difference in light intensity between the line and the background. This study evaluates the application of a photodiode sensor to a microcontroller-based line follower robot, focusing on the performance of the sensor under various lighting conditions and surfaces. The results show that the photodiode sensor is able to detect lines with high accuracy of almost 100% between black lines on a white surface. To achieve fast response speed and high trajectory stability, the optimal distance between the photodiode sensor and the surface must be maintained. Fast response speed and high trajectory stability are at a distance of 0.5 to 1.0 cm. Under normal lighting conditions (200-300 lux), the robot can follow the trajectory with optimal speed and precision. Under low lighting conditions (below 100 lux), the sensor is still able to detect the line, but the robot speed must be reduced to maintain accuracy. Under very bright lighting conditions (above 500 lux), the photodiode sensor shows a little difficulty in distinguishing lines if there is significant light reflection, but it can still be compensated by adjusting the sensor sensitivity. This research provides a solid foundation for further development in improving the performance of line follower robots in various practical applications.