Vongchumyen, Charoen

Preferred name

Alternative Name

Vongchumyen, C.

Main Affiliation

School of Engineering

charoen.vo@kmitl.ac.th

Now showing 1 - 10 of 20

Some of the metrics are blocked by your
consent settings
Image recorder server with IP camera and pocket PC
(2011-05-02)
Boonma, N.
;
Sangthong, A.
;
Mitatha, S.
;
Vongchumyen, C.
We propose a new system for image recorder server from IP camera. The system consists of 2 parts, Server and viewer. Server is software running on PC with ability to capture image from IP camera and save to disk like an image server. The second part is the viewer. A user be able to monitor and view the saved image on the server via a web-based application from everywhere with password protection. Live and history image can be show to user to check the status of area or investigate the history event. Further more. The server can connect to IP camera to collect image or connect a web cam directly to the server for cost reduction. Finally, the user can view the image by using browser on the PC or Windows mobile phone.
Some of the metrics are blocked by your
consent settings
Home appliances-controlled platform with homekit application
(2019-07-01)
Vongchumyen, Charoen
;
Torthitithum, Sarayuth
;
Khamsopa, Jirachaya
;
Watanachaturaporn, Pakorn
Home appliances-controlled platform with HomeKit application is a platform that allows users to control general appliances via HomeKit, which is an application from Apple on any device running iOS10 or later. The platform is the communication medium between application and appliances. The appliances do not need to be manufactured by Apple since they are expensive and have to put an effort in case the customer want to buy it. The platform is capable of receiving and transferring data to a HomeKit application for data processing, then transmits signal back to control the operation of the appliances. Within the platform, there is a section that acts as a communication server for the HomeKit application which is like a direct Apple server. In addition to receiving and sending data from the HomeKit application, the platform also has an automatic control that is controlled by the reading sensor contained in each platform comparing the threshold values, user defined. Each platform has different sensors based on their operations and can control only one type of appliance because each type of control uses different signal, the control must be unique, matching the type of appliances and the form of command in different manufacturers.
Some of the metrics are blocked by your
consent settings
Frequency Choices and the Improvement of Signal Using Reassigned Joint Time-Frequency Analysis for Closed Range Detection
(2025-01-01)
Pinyatanabat, Thipparat
;
Vongchumyen, Charoen
This research aims to observe and improve the received signal resolution that reflected from moving object which, in this experiment, is pedestrian who would be moving around radar within close ranges (2 meters, 15 meters, and 30 meters apart from stationary monostatic radar). Since simulation is a better choice to observe the changes of signal with variety ranges of frequency with less uncontrollable variables thus MATLAB is the chosen tool to run on the experiment in order to observe the micro-doppler effect in each scenario. Considering real-life limitation, authors focus on off-the-shelf frequency range that everyone could access; 2.4 GHz and 5 GHz the frequency range of WIFI. The observation results show that if we want to decrease the frequency from 24 GHz to these household WIFI and still not decrease its information too much to unable to recognize human movement, 5 GHz is a better choice comparing to 2.4 GHz if the application aims to detect the minimum range of moving target indoor with resolution range is more or equal to 1 meter.
Some of the metrics are blocked by your
consent settings
Empirical experiment on origin destination estimation using automatic licence plate matching on a rural road of Thailand
(2017-10-19)
Watanachaturaporn, Pakorn
;
Chalermwongphan, Karn
;
Huntajidkul, Achaya
;
Vongchumyen, Charoen
;
Watthanakul, Jettarin
The growth of economic influences city authorities to plan and build infrastructure. The growth prediction mostly uses modern mathematical models. The accuracy of the model is highly depended on reliable parameters. Two crucial parameters for most models are traffic capacity and average travel speed along road networks and obtained from an origin-destination (OD) estimation. Thus, an OD estimation is necessary to obtain reliable parameters for the predictive models. Traditionally, the OD estimation is performed by human observation; however, an automatic license plate recognition and matching algorithm show potential of obtaining such data. Additionally, the observation is able to perform long term observation which is impractical for human. Therefore, this paper reports an empirical experiment on OD estimation using automatic license plate matching along with a real-world human observation survey in Mukdahan province. The results from both types of surveys are reported and compared. The different results between the both raises an opportunity for researching an optimal method of OD estimation in Thailand.
Some of the metrics are blocked by your
consent settings
Atom/molecule transportation using a dark soliton pulse
(2010-05-05)
Vongchumyen, C.
;
Authasing, S.
;
Mitatha, S.
;
Ali, J.
;
Yupapin, P. P.
A dark soliton pulse beam that has potential applications in the probing and transport of atoms or molecules as an optical tweezers is demonstrated. The trap pulse beam is formed in the gap between a BP signal at 1500.00 nm and Stokes signal at 1500.09 nm, which have peak powers of -12 dBm. The generated beam is seen to be stable with no fluctuations over a test period of 10 minutes, which is important to ensure that the transported atom / molecule is not lost in the link media. ©2010 IEEE.
Some of the metrics are blocked by your
consent settings
Door lock system via web application
(2017-10-19)
Vongchumyen, Charoen
;
Watanachaturaporn, Pakorn
;
Jinjakam, Chompoonuch
;
Watcharapupong, Akkradach
;
Kasemsiri, Watjanapong
This research proposes the smart way to solve the common problem of the conventional door-locking system. The important problems of the ordinary door-locking systems are key lost, forgetting to lock the system and cannot check the lock status from remote. To solve these problems, we proposed a method to lock-unlock the system which utilizes the web application and passcode alongside the usual method of using the ordinary keys. The proposed system can remotely lock, remotely unlock, remotely check door state, remotely check door locking state, send the email to the owner in case of someone knocking on the door and generate the temporary passcode to use in specific date and time.
Some of the metrics are blocked by your
consent settings
Wireless traffic light controller
(2011-05-02)
Thatsanavipas, K.
;
Ponganunchoke, N.
;
Mitatha, S.
;
Vongchumyen, C.
We propose a new system for wireless traffic light controller, it makes a traffic policeman easily and effective control a roadjunction with a wireless remote control. The system has two modes, Manual and Automatic. Manual mode provide the control oftraffic light to change manually by the traffic policeman, by just press the button related to the direction of the street to make agreen light signal. The remote will respond by checking the bearing of the pressed button on the remote using Hall effects sensorregarding to the position and direction of the remote. Then send the control signal to the traffic light controller board. Inautomatic mode, the traffic light controller board will change the light sequence according to the preset patterns and time delay,the traffic policeman be able to change the pattern at any time using the remote. The propose system help the policeman tocontrol the junction by himself and be able to change conditions of the traffic flow dynamically.
Some of the metrics are blocked by your
consent settings
Laser Pigeon Deterrent
(2026-01-01)
Viriyakul, Vachara
;
Chumsri, Paramee
;
Chayawattana, Faikaew
;
Sattapornnara, Peerapat
;
Vongchumyen, Charoen
Urban environments face increasing challenges due to pigeon infestations, leading to property damage, environmental degradation, and health concerns. This research presents the development of a laser-based pigeon deterrent system that leverages image processing, embedded systems, and web applications to provide an automated and efficient bird deterrence solution. The system detects pigeons and humans in real time, ensuring that laser deterrence is applied safely and ethically. Through controlled field tests, the system achieved a pigeon detection accuracy of 78.18% and a successful deterrence rate of 49.09%. The results indicate the potential of laser-based deterrents as a viable alternative to conventional bird control methods.
Some of the metrics are blocked by your
consent settings
Portable Signboard Size Measurement for Tax Collection
(2026-01-01)
Viriyakul, Vachara
;
Noisundod, Siwakorn
;
Chayawattana, Faikaew
;
Chokkhun, Pacharapol
;
Tienngam, Krittipoom
Challenges in the collection of signboard taxes largely emanate from access-related problems and human errors, which contribute to inefficiencies in the tax valuation processes. However, a question of concern, which is normally overlooked, is how to provide a systematic and portable solution which combines precision and convenience for the field officers. This paper addresses this gap by developing a portable device based on computer vision and machine learning approaches to automate signboard measurement. Through the integration of state-of-the-art technologies, this device not only increases accuracy but also brings a level of operational simplicity that has not been explored before in this area. The results showed that the device was able to identify and calculate the area of the signboards correctly.
Some of the metrics are blocked by your
consent settings
Golf shaft fitting calibration system
(2012-01-01)
Jaknowan, J.
;
Mitatha, S.
;
Vongchumyen, C.
;
Yupapin, P. P.
The calibration system was developed for golf shaft fitting to the club or blade. The system provided the best line and angle of golf shaft to fit into the club slot. This yielded the best controlling for the impact point between the club and the golf ball, including obtained the minimal swaying of golf shaft after the club hit to the ball. The proposed system was consisted of two components: the hardest line tuning and the best line calibration tool. The hardest line tuning was applied to search for the line that indicated the most strongest of the shaft, which contributed the minimal bend within the given certain forced pressure. The best line calibration tool was employed to determine the best angle for fitting the shaft to the golf club which reflected the minimal swaying while hitting to the ball. In this manner, the golfers could control the desired range and direction of the ball. © 2010 Published by Elsevier Ltd.

Vongchumyen, Charoen

Filters

Settings

Sort By

Results per page