http://localhost:8080/xmlui/handle/123456789/903 2026-04-12T20:37:46Z http://localhost:8080/xmlui/handle/123456789/1049 PID Controller Designs for Interacting Water Level Process เรืองยศ เกตุรักษา; เจษฎาพร สถานทรัพย์; พิเชษฐ นาคนุ; สุดารัตน์ คำพร This paper presents PID controller design for interacting water level process. The pressure transmitter is used to sense the water level. Measurement of the pressure which the output is in the 4 -2 0 mA the voltage is then converted into on 1 -5 volt analog signal to digital to digital converter, 16-bit arithmetic processing over board Arduino Mega 2 5 6 0 to create a PID controller to turn on-off valve automatically. This project use a PID controller design using Characteristic Ratio Assignment method (CRA) for coupled-tank process and use to meet the prefect transient and steady-state response requirement. 2018-01-01T00:00:00Z http://localhost:8080/xmlui/handle/123456789/928 A Development of Cyber Mini CNC Milling Machine 4 axes: part 1 อดิศักดิ์ แข็งสาริกิจ This paper presents a development of cyber mini CNC Milling Machine 4 axes. The purpose is to the CNC operator can operate the CNC milling machines which operate the same pattern of work pieces. The research consists of a structure of mini CNC milling machine 4 axes, microcontroller board, communications board and website. The experiment, CNC operator can operate the mini CNC milling machine through the website. The experimental results show the operation of mini CNC milling machine through the website. The research is designed to define for 3 functions. There are RUN function, RESET function and PAUSE function. The results can be operated the mini CNC milling machine and approached to develop. 2018-01-01T00:00:00Z http://localhost:8080/xmlui/handle/123456789/927 Increasing Efficiency of Building Energy Utilization A Case Study of Fuji Electric Manufacting (Thailand) Co.,Ltd. ทวิช คงธันร์ This study aims to optimize the use of energy in the building of Fuji Electric Manufacturing (Thailand) Co., Ltd. Building 2014 – 2016, the company had paid high costs of energy bills that contributes the study for reducing electricity consumption by setting up a project to conserve electricity and to find ways for managing high volumes of electricity. A guideline for reducing electricity consumption was developed by considering 3 systems: Electrical equipment in the office, Lighting System and Air Conditioning System. The study was carried out by setting up energy committee, implementing a change in electrical equipment, and campaigning for employees to participate in the reduction of electricity consumption. According to the policy of the Ministry of Industry and the Energy Conservation Act 1992. According to the study, if can be observed that the amount of electricity consumed could be reduced. Although there were some additional costs for replacing the equipment, it would be worth for investment and can actually reduce electricity consumption according to the map. Moreover the amount of electricity used within the company in 2017 was reduced by up to 12.5%. Which was higher than expectation of 10%. 2018-01-01T00:00:00Z http://localhost:8080/xmlui/handle/123456789/926 The case study automated parking elevator control with Raspberry Pi โสภณัฐ ชุนการุณ; อิศรา สวรรค์บัญชา; สัญญา สมัยมาก This research presents an automated parking elevator control with Raspberry Pi board. The Raspberry pi board was introduced to replace the PLC control system. The cost of producti on is lower and stable. The application of microcontroller seri es Raspberry Pi and software Codesys Development System to control operation. The test results were tested to meet the system objectives. 2018-01-01T00:00:00Z