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Publication Metadata only A low-cost data-glove for human computer interaction based on ink-jet printed sensors and ZigBee networks(2010-12-01) Nattapong Tongrod; Teerakiat Kerdcharoen; Natthapol Watthanawisuth; Adisorn Tuantranont; Mahidol University; Thailand National Electronics and Computer Technology CenterIn this paper, a data-glove based on new kind of sensors is presented as an alternative to expensive devices. These sensors were realized using a conductive polymer (PEDOT:PSS) thin film printed on glossy photo paper. To demonstrate the printed... sensors, we constructed a data glove using such sensors and developed software for real-time hand tracking. Wireless networks based on low-cost ZigBee technology were used to transfer data from the glove to a computer. This data-glove is very usefulPublication Metadata only Wireless sensor network-based smart room system for healthcare monitoring(2011-12-01) Jetsada Arnil; Yunyong Punsawad; Yodchanan Wongsawat; Mahidol UniversityIn this paper, the utilization of Zigbee as wireless sensor network (WSN) for medical application is demonstrated. The combination of various topologies is used to configure wireless sensors network to achieve high efficiency network architecture... in medicine. The network consists of center coordinator, routers and sensor nodes. Mesh network is used for the connection between coordinator and router for range expansion. A performance of the proposed modality is tested in the normal situation. BesidesPublication Metadata only Wearable sensor of humanoid robot-based textile chemical sensors for odor detection and tracking(2018-08-13) Tanthip Eamsa-Ard; Thara Seesaard; Teerakiat Kerdcharoen; Kanchanaburi Rajabhat University; Mahidol University© 2018 IEEE. This paper revealed the development and implementation of the wearable sensors based on transient responses of textile chemical sensors for odorant detection system as wearable sensor of humanoid robot. The textile chemical sensors... consist of nine polymer/CNTs nano-composite gas sensors which can be divided into three different prototypes of the wearable humanoid robot; (i) human axillary odor monitoring, (ii) human foot odor tracking, and (iii) wearable personal gas leakagePublication Metadata only DIY sensor-based automatic control mobile application for hydroponics(2016-07-22) Chanya Peuchpanngarm; Pantita Srinitiworawong; Wannisa Samerjai; Thanwadee Sunetnanta; Mahidol Universitydeveloped a DIY sensor-based automatic control mobile application for hydroponics. The application enables automatic environmental control for hydroponics via different types of sensors including water temperature sensor, temperature and humidity sensor...© 2016 IEEE. Hydroponics is a new popular technique of growing plants, especially in urban area, due to its many advantages over traditional soil based gardening. To apply affordable technology for managing and controlling hydroponics gardening, wePublication Metadata only Feasibility of in-car wireless sensor networks: A statistical evaluation(2007-12-01) Hsin Mu Tsai; Wantanee Viriyasitavat; Ozan K. Tonguz; Cem Saraydar; Timothy Talty; Andrew Macdonald; Carnegie Mellon University; General Motors; Mahidol UniversityStatistical characterization of in-car wireless communication channels has recently gained significance, mainly due to the possibility of deploying a wireless sensor network in the vehicle. In this paper, we report different aspects of a statistical... analysis of four representative incar wireless channels based on the received power data collected from a Binary Phase Shift Keying (BPSK) transmission experiment. It is shown that the communication channel between the base station and a sensor placed underItem Metadata only Deep Learning Networks for Eating and Drinking Recognition based on Smartwatch Sensors(2022-01-01) Mekruksavanich S.; Jantawong P.; Hnoohom N.; Jitpattanakul A.; Mahidol Universityactivities such as eating-related activities. This paper proposes a sensor-based HAR framework using data from eating-related activities recorded by a smartwatch sensor. In this framework, five d eep learning networks (CNN, LSTM, BiLSTM, Stacked LSTM, CNN...Smartwatches are becoming more popular for recognizing and monitoring human actions in everyday life. These wearable devices are equipped with various IMU sensors for ubiquitous data processing and recording of human physical activity data. SensorPublication Metadata only Sensor pillow and bed sheet system: Unconstrained monitoring of respiration rate and posture movements during sleep(2012-12-01) Shongpun Lokavee; Theeraporn Puntheeranurak; Teerakiat Kerdcharoen; Natthapol Watthanwisuth; Adisorn Tuantranont; Mahidol University; National Electronic and Computer Technology CenterIn this paper, we have developed a low-cost sleep monitoring system for patient based on polysomnography which will be useful for patient communication with healthcare personals and/or relatives. In particular, we have presented the sensor pillow... and bed sheet system that employs wireless networks based on low-cost ZigBee technology and a sensor array of force sensitive resistors (FSR) based on polymer thick film (PTF) device, for classifying and specifically verifying the respiration rate duringItem Metadata only Heterogeneous Recognition of Human Activity with CNN and RNN-based Networks using Smartphone and Smartwatch Sensors(2022-01-01) Mekruksavanich S.; Jantawong P.; Hnoohom N.; Jitpattanakul A.; Mahidol University. This data may be analyzed using different deep learning architectures to provide an additional platform for capturing and classifying the numerous sensor-based actions an individual could be undertaking. This research compares HHAR models based on deep... dataset (HHAR) with a 5-fold cross-validation technique. Using smartphone sensors, research findings demonstrate that the RNN-based model is superior to CNN-based models, with the most fantastic accuracy of 98.42%.Publication Metadata only Collective behavior implementation in powerline surveillance sensor network(2005-12-01) Pornchai Chanyagorn; Harold H. Szu; Hongye Wang; Mahidol University; George Washington University; National Institute of Mental HealthThis paper presents the application of collective swarm intelligence in solving problems of non-multiplexing communication in powerline sensor network. Based on collective intelligence behavior in nature, we design a system that allows local sensors.... The non-multiplexing sensor communications is implemented using underdetermined Blind Source Separation (uBSS) based on the finite alphabet property of the data. The details of hardware implementation are provided as well as the result from the test-bedPublication Metadata only Wearable electronic nose based on embroidered amine sensors on the fabric substrates(2012-10-02) Thara Seesaard; Panida Lorwongtragool; Teerakiat Kerdcharoen; Mahidol University; Rajamangala University of Technology systemThe purpose of this work is a novel design and fabrication of wearable amine sensor embroidered into fabric substrates based on polymer/SWNT-COOH nanocomposite and applied as electronic nose (e-nose) system. The wearable amine sensors were... for body odor detection and using a simple pattern recognition based on the principal component analysis (PCA) for discriminating between the responses of wearable amine sensor array to gas odors. © 2012 IEEE.