Journal of Industrial Technology Ubon Ratchathani Rajabhat University

A Development of Classification of Thai Mushroom Application for Identified Wild Mushroom Species on Android Operating System

Ajjima Thongbor — 2025-06-25

An application on the Android operating system is used for research and development for identifying wild mushroom species. The aim of this study is to create a tool that can identify poisonous and edible mushroom species based on their morphological similarity to the Android operating system. The application identified wild mushroom species by scanning the fruiting body and comparing the image with morphological characters from a database in the cloud. The data of images provided for each species includes at least 1,000 images from different ages, sizes, and colors of the fruiting body. The next step is to train and test to recognize the morphology of mushrooms in each species for precise processing. The result shows satisfaction in four groups for using an application; 1) the village health volunteer, 2) medical staff, 3) experts, and 4) general user. The satisfaction showed a good level ( = 3.86, S.D. = 1.03) in an easier-to-install application, correct and rapid processing, good application and benefit, a confident decision to select mushroom for food after using an application, and knowledge about mushroom when eating poisonous mushrooms, and preliminary health care data when getting poison from mushrooms. Therefore, the application tool for screening wild mushrooms for decision making.

Air Quality Monitoring Station Using the Internet of Things with LoRa Technology and Extending the Transmission Distance Through Repeaters

Mingkwan Somphruek — 2025-06-25

Nowadays, the LoRa technology for the Internet of Things (IoT) is designed to fulfil the requirements of long-range data transmission, capable of covering distances of up to 1 kilometer in unobstructed environments. However, when desiring to cover a greater distance, certain constraints come into play that the system is incapable of accommodating. Therefore, the present study encompasses the development of a repeater system utilizing LoRa technology with the aim of extending the transmission range for the purpose of transmitting data from air quality monitoring stations. The repeater system functions within two distinct frequency bands, specifically 923.2 MHz and 923.4 MHz. Based on the results, the signal strength observed between the air quality monitoring station and the repeater exhibited a range spanning from -84 dBm to -92 dBm. The study looked at the indicator level value of the signal strength that the device received from the transmitter in the context of the LoRa repeater device and the LoRa network. The experimental findings revealed that the average signal level ranged between -69 dBm and -112 dBm. Additionally, the results indicated that the average signal delay was measured at 5,000 ms.

Brushless DC Motor Operation in Generator Mode for Wind Turbine Generator

Rungwicha Chaiyot — 2025-06-25

In this study, the researchers presented finding the performance of the brushless DC motor while working as a generator without modifying any elements in the motor to find the characteristics of operation in generator mode. The relationships between shaft speed, output voltage, current, power, and torque were tested in the laboratory. Because the brushless DC motor is three-phase, a three-phase diode bridge rectifier converted AC into DC electricity to determine the brushless DC motor's features as generator mode operation. Tested at a constant speed of 900 rpm at different loads ranging from 0.5 ohms to 15 ohms, it was discovered that as loading resistance increased, current decreased, and the voltage from the diode bridge rectifier increased. When tested at a fixed load of 7 ohms with speed changes ranging from 100 to 900 rpm. It was found that as the speed increased, the voltage and current increased in direct proportion to the speed. Experiments at different speeds showed that as the speed increased, it generated more power. At a speed of 900 rpm. It has an output voltage of 16.61 volts, an output current of 2.31 amps, and a maximum power output of 38.36 watts. At a speed of 900 rpm. The 15 ohm resistance load has an output voltage of 25.72 volts and an output current of 1.72 amps, providing a power output of 44.23 watts. With increased rotational speed, the generator becomes more efficient

A Limited-Instruction-Set Virtual Programmable Automatic Controller

Pat Taweewat — 2025-06-25

This work presents techniques to develop cross-platform virtual programmable controller machine for reducing cost of using imported software and system in automation works. Its main work can be separated into 1) virtual machine architecture design 2) simulation software development and 3) hardware-software interface testing. For implementation, Python language is selected because of its portability to run in both Windows and Linux-based operating systems including mobile platforms such as Android phone. From the results of time-constraint experiments, the developed virtual machine can execute main instructions mimicking limited ladder diagram at reasonable speed for both simulation mode only and interfacing test based on Arduino nano hardware.
On Linux virtualization platform, if the virtual machine has input-output size under 64bit, its timer instruction can be executed at a good precision down to 100ms whereas the scan time can be less than 100ms for virtual machine up to 2,048bit input-output size. Moreover, the developed virtual machine is designed and tested to communicate with Arduino Nano leading to possibility in using the virtual machine with real external devices.

Design and Fabrication of a low-Cost Semi-Automatic Cotton Spinning Machine for Household Production

Komsan Tantichukiad — 2025-06-25

This research aims to design and fabricate a semi-automatic cotton spinning machine for household production and to investigate the optimum revolution speed of motors that affect the qualities of cotton yarn. The machine was developed from a traditional cotton spinner in order to improve productivity rates and decrease working hours and the number of workers by replacing a manual flyer with DC motors including a crank arm motor, a cotton-picking motor, and a spindle motor. All worked together functionally with the semi-automatic mode. The speeds of motors could be adjusted to correspond with the workers' requirements. Based on the tests, the longest cotton yarn and highest perfection value occurred when sets of the speeds of a flyer, a bobbin, and a screw traveler were 300, 280, and 18 rpm and 400, 370, and 18 rpm, respectively. The maximum spinning efficiency was 98.2% when the speed of a flyer was 300 rpm. Moreover, the working ratio was also increased when a flyer's speed was increased. Finally, the developed machine was demonstrated at two selected communities. Tests were conducted and compared with a conventional machine. It found that productivity rates were higher and working hours were longer. The qualities of cotton yarn for example length, strength, and number of knots were acceptable.

Design and Fabrication of Paddy Sowing Machine in the Nursery-Tray using Solar Energy System

Teerapod Naebnean — 2025-06-25

The objectives of this research were 1) to design and fabricate the paddy sowing machine in the nursery tray and 2) to determine the test of the paddy sowing machine with a solar system. In the design and the fabrication of the structure is made of steel. The power source is an electric motor of 250 watts. The main components are seeding tray conveyer, soil hopper, rice hopper, paddy drop shaft, transmission system and solar power system installation, which comprises the solar panel, the charge controller, and the battery. The results of the test were as follows: 1) The sprinkling paddy seeds per hole, the distance was 0.8 cm. There was an average of 3.53 seeds per well standard deviation 2.35. 2) The speed of soil sprinkling and the paddy seed sprinkling had an average of 10 seconds per tray. 3) The amount of the soil pouring half of the hole was 8.53 mm. per hole. The test of filling the hole was 8.52 mm. The soil was 100 percent in the hole. 4) The loss of seed tested at a weight of 5 kilograms with an average loss of 0.22 kilograms. The seed germination test after planting in trays shown that the seedlings germinated more than 97%. The solar system can generate electricity equal to 67.5 units per month. It can save 319 baths per month on electricity costs for planting seedlings. The results of the research helped paddy sowing machine using solar energy to reduce the labor and the time on planting seedlings for reduce seed loss and promoting the use of renewable energy.

The Design and Development Packing Machine for Increase Packing Process Efficiency of Kluay Chap

Narisara Sareebut — 2025-06-25

The objective of this research is to design and develop suitable packaging for kluay chap and improve efficiency in the kluay chap production process using flow process chart to collect data. The cause analysis was conducted using fishbone diagram, revealing that there was 1 step that resulted in waste during the packaging process. In this step, manual labor is required to pick up the kluay chap in bags several times and weigh them before sealing the bag to achieve the desired quantity. The researchers addressed this issue by designing a new packaging machine that facilitates easier packaging and enables the measurement of the weight of the kluay chap to meet the standard requirements. After the improvement, the production time per cycle reduced to 2,373 seconds, which is a decrease of 11.39% compared to the original packaging process that took 200 seconds, resulting in a reduction of wasted time by 185 seconds, equivalent to 92.50%. Additionally, 1 step in the weight checking process was eliminated, and the average weight of the kluay chap before the improvement was 136.10 grams, which exceeded the standard weight criterion of 130 ± 5 grams. After the improvement, the average weight was adjusted to 130 grams, ensuring that the weight of the kluay chap falls within an acceptable standard.

Development of Automatic Cable Winding Machine

Noppachai Saivaew — 2025-06-25

This paper aims presents the development of a cable winder. The problem encountered by the company. The cable maker needs to produce a large reel of wires before removing them from the machine, causing the reels of electrical cable and cables to be divided into large diameters with wires. The cable is on the reels makes difficult for users, resulting in high moving costs. Operator want to split from large reels to smaller. The required length and size before being used in the field of operation. The traditional process of dividing cable requires 3 workers and 1 forklift to control the work. The efficiency is not consistent, such as the length of the cable being incorrect from the specified size. The cable is twisted and not attached to the reel. The company wanted to reduce worker to just one person and needed a machine that could automatically cable winding machine. The researcher is attachment based on the system design principles and calculations. The machine components consisting of cable reel lifters, cable length meter tensioner and cable alignment system. Automatic cable shredders can accommodate standard size reels with reel widths from 400 to 1000 millimeters. Install a reel with a core hole diameter from 70 mm. to 100 mm. Able to wind a 6 mm² cable. Install reels with core holes from 70 mm to 100 mm in diameter, 6 mm² cables at a maximum speed of approximately 140 rev/min, 25 mm² cables at a maximum speed of approximately 50 rev/min. The machine has a mechanism to lift the cable reel. It can stop for working automatically when the wires have been divided to the desired distance and can be operated by one person.

Development of Remote Monitoring of Pulse Oximetry and Heart Rate System Notification Via Line Application

Rattanasuda Supadanaison — 2025-06-25

This research developed a pulse oximeter and heart rate monitor with a remote monitoring system. Users and caregivers can monitor current and past oxygen levels and heart rate through the application web page. The system records blood oxygen levels and heart rates according to a configurable schedule. If the amount of oxygen in the blood or heart rates are detected, the system sends alerts to the LINE application, enabling timely intervention by caregivers. The development of the pulse oximeter and heart rate monitor in this research utilizes a microcontroller, NodeMCU, for operational control. Data from the heart rate and blood oxygen sensors are transmitted over the Internet and stored using Google Sheets online services for continuous monitoring and remote tracking. Voice notifications recorded on a MicroSD card are also included. The results showed that system can measure blood oxygen saturation and heart rate, and record the measurement results in Google Sheets according to the set schedule. A meter management system is available through the web application. Performance testing compared to the pulse oximetry, there was a difference 1.41% for heart rate measurement test and 0.41% for blood oxygen compatibility test.

Additional water discharge simulation to increase power generation of the Xe Nam noi Dam 1 Attapeu Province Lao People's

Cheuy Phonesavanh — 2025-06-25

This research aimed to simulate the release of additional water to enhance the power generation capacity of small hydroelectric dams, specifically francis hydro turbines. Se Nam Noi 1 electric dam, situated in the southern part of the democratic republic, is a small electric dam with an installed capacity of 2 x 7.4 megawatts and a small reservoir covering approximately 0.060 square kilometers. The basin's full water volume is 273,000 cubic meters, allowing for electricity generation at a maximum water level of 252 meters above sea level and a minimum of 249 meters above sea level. This article presents simulations of additional water releases using actual data collected from Se Nam Noi 1 electric dam between January 1, 2020, and July 18, 2021, showing an up to 11% increase, equivalent to 5.56 WM, in the second electric power generator's capacity when simulating additional water discharge in 2021. The first electric power generator also exhibits a capacity increase of up to 10%, equivalent to 6.42 MW. Similarly, the second electric power generator demonstrates an increase of up to 13%, equivalent to 5.86 MW. In 2020, Se Nam Noi 1 electric dam successfully generated a total electric power output of 55.728 gigawatt hours, which increased to 57.169 gigawatt hours when simulating additional water releases. In 2021, the dam produced a total of 16.348 gigawatt hours, with an additional 16.811 gigawatt hours generated when simulating additional water releases.