Pub Date : 2016-05-04DOI: 10.1109/ISNE.2016.7543332
Yuan-Jie Yang, Cheng-Ling Lee
This work proposes an air-gap Fiber Fabry-Pérot Interferometer (AG-FFPI) using a hollow core fiber coated with a layer of new polymer, NOA87 for the measurement of relative humidity (RH) and temperature (T). The principle is based on variations of the cavities that are moisture and temperature sensitive to change the interference patterns. Experimental results show that the sensitivities of the RH and T with around 0.3nm/°C and 0.018nm/ %RH can be obtained, respectively.
{"title":"Airgap Fiber Fabry-Pérot Interferometer using a hollow core fiber coated with a layer of photopolymer for measurement of relative humidity and temperature","authors":"Yuan-Jie Yang, Cheng-Ling Lee","doi":"10.1109/ISNE.2016.7543332","DOIUrl":"https://doi.org/10.1109/ISNE.2016.7543332","url":null,"abstract":"This work proposes an air-gap Fiber Fabry-Pérot Interferometer (AG-FFPI) using a hollow core fiber coated with a layer of new polymer, NOA87 for the measurement of relative humidity (RH) and temperature (T). The principle is based on variations of the cavities that are moisture and temperature sensitive to change the interference patterns. Experimental results show that the sensitivities of the RH and T with around 0.3nm/°C and 0.018nm/ %RH can be obtained, respectively.","PeriodicalId":127324,"journal":{"name":"2016 5th International Symposium on Next-Generation Electronics (ISNE)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116337880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
To fit the development trend of future DC micro-grids, an intelligent DC power monitoring system and sensor network is proposed in this paper for smart homes. The system is mainly composed of DC smart socket, sensors, home gateway, cloud sever and remote monitor device. According to Internet of things (IoT), all devices are connected through wireless protocols, such as Zigbee, WiFi and 3G/4G mobile communications, to maximize the flexibility and ease the installation for users. All power consumption, real-time video streaming and environment sensing can be accessed remotely via smart phones, pads or computers to ensure the most security and comfortability for user homes. Alarms will be issued for any irregular condition sensed. The detail report and statistics for home appliances are also provided to help users reschedule the appliance usage to lower the electricity bills. The proposed system is realized with free open source software to minimize the overall cost.
{"title":"Intelligent DC power monitoring system and sensor network based on ZigBee-equipped smart sockets","authors":"Yi-shiun Tsai, Chun-Yi Chu, Min-che Li, Yuan-Hsiang Lin, Poki Chen","doi":"10.1109/ISNE.2016.7543404","DOIUrl":"https://doi.org/10.1109/ISNE.2016.7543404","url":null,"abstract":"To fit the development trend of future DC micro-grids, an intelligent DC power monitoring system and sensor network is proposed in this paper for smart homes. The system is mainly composed of DC smart socket, sensors, home gateway, cloud sever and remote monitor device. According to Internet of things (IoT), all devices are connected through wireless protocols, such as Zigbee, WiFi and 3G/4G mobile communications, to maximize the flexibility and ease the installation for users. All power consumption, real-time video streaming and environment sensing can be accessed remotely via smart phones, pads or computers to ensure the most security and comfortability for user homes. Alarms will be issued for any irregular condition sensed. The detail report and statistics for home appliances are also provided to help users reschedule the appliance usage to lower the electricity bills. The proposed system is realized with free open source software to minimize the overall cost.","PeriodicalId":127324,"journal":{"name":"2016 5th International Symposium on Next-Generation Electronics (ISNE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126354125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-05-04DOI: 10.1109/ISNE.2016.7543345
Qing-Shan Chang, Shang-Hui Yang, Ding-Chin Chou
Lighting is closely related to our daily life; for different places, the types of the lighting designs and the energy-saving controls are very different; however, which can determine whether the lighting energy-saving control can succeed or not. The most frequently-used energy-saving methods include turning on/off lamps according to timing, turning on/off lamps by divided loops, using high-efficiency energy-saving lamps and the like; in addition to above methods, are there any other applicable energy-saving methods more energy-saving, safer and more comfortable? The paper takes a large underground parking lot as an example to propose using a dimming LED lamps to substitute for the currently used high-efficiency T5 lamps, and combines which with the sensor of the currently available vehicle searching system by system integration; the paper designs two scenarios, including the normal scenario and the car pick-up scenario; after we simulates the two scenarios, we found the energy-saving efficiency can be further increased to about 83%; therefore, the energy-saving efficiency is very obvious.
{"title":"Simulation research of using PWM to control LED scenario energy-saving system — The case of large underground parking lot: Preparation of papers in two-column format for ISNE 2016","authors":"Qing-Shan Chang, Shang-Hui Yang, Ding-Chin Chou","doi":"10.1109/ISNE.2016.7543345","DOIUrl":"https://doi.org/10.1109/ISNE.2016.7543345","url":null,"abstract":"Lighting is closely related to our daily life; for different places, the types of the lighting designs and the energy-saving controls are very different; however, which can determine whether the lighting energy-saving control can succeed or not. The most frequently-used energy-saving methods include turning on/off lamps according to timing, turning on/off lamps by divided loops, using high-efficiency energy-saving lamps and the like; in addition to above methods, are there any other applicable energy-saving methods more energy-saving, safer and more comfortable? The paper takes a large underground parking lot as an example to propose using a dimming LED lamps to substitute for the currently used high-efficiency T5 lamps, and combines which with the sensor of the currently available vehicle searching system by system integration; the paper designs two scenarios, including the normal scenario and the car pick-up scenario; after we simulates the two scenarios, we found the energy-saving efficiency can be further increased to about 83%; therefore, the energy-saving efficiency is very obvious.","PeriodicalId":127324,"journal":{"name":"2016 5th International Symposium on Next-Generation Electronics (ISNE)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125671069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-05-04DOI: 10.1109/ISNE.2016.7543288
Han-Wen Liu, Chien-hung Lin, Fang-Hsing Wang
The recovery characteristics of threshold voltage (Vth) for the hydrogenated amorphous silicon thin-film transistors (a-Si:H TFTs) stressed under the DC bias conditions are investigated. No matter what the positive or negative gate biased stresses, there are recovery phenomena existing in the Vth degradation. The larger the magnitude of the stress voltage is, the larger the amount of Vth recovery is. Owing to the lower energy level of the hole trapping center within silicon nitride film than that of an electron, the recovery amount of Vth for the a-Si:H TFTs stressed at negative gate biased stress is larger than those stressed at positive gate biased stress.
{"title":"Recovery characteristics of threshold voltage degradation for hydrogenated amorphous silicon thin-film transistors under DC bias stresses","authors":"Han-Wen Liu, Chien-hung Lin, Fang-Hsing Wang","doi":"10.1109/ISNE.2016.7543288","DOIUrl":"https://doi.org/10.1109/ISNE.2016.7543288","url":null,"abstract":"The recovery characteristics of threshold voltage (Vth) for the hydrogenated amorphous silicon thin-film transistors (a-Si:H TFTs) stressed under the DC bias conditions are investigated. No matter what the positive or negative gate biased stresses, there are recovery phenomena existing in the Vth degradation. The larger the magnitude of the stress voltage is, the larger the amount of Vth recovery is. Owing to the lower energy level of the hole trapping center within silicon nitride film than that of an electron, the recovery amount of Vth for the a-Si:H TFTs stressed at negative gate biased stress is larger than those stressed at positive gate biased stress.","PeriodicalId":127324,"journal":{"name":"2016 5th International Symposium on Next-Generation Electronics (ISNE)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125009177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-05-04DOI: 10.1109/ISNE.2016.7543304
C. Li, Wen-Jui Chiang, N. Lin, Jia-Huei Lyu, Yi-Zhen Liu, Bo-Yi Wu, S. Shei
Synthesis and application of InP/ZnS quantum dots (InP/ZnS QDs) were synthesized via non-coordinated system. The structural model of InP/ZnS QDs was completed by using composition analysis, absorption spectroscopy and emission spectroscopy. Furthermore, their applications as phosphors were investigated. The ZnS shell-growth temperature and time was controlled to obtain QDs with different sizes and the emission wavelength. Finally, a white LED was fabricated with InP/ZnS QDs.
{"title":"White LEDs with InP-ZnS quantum dots","authors":"C. Li, Wen-Jui Chiang, N. Lin, Jia-Huei Lyu, Yi-Zhen Liu, Bo-Yi Wu, S. Shei","doi":"10.1109/ISNE.2016.7543304","DOIUrl":"https://doi.org/10.1109/ISNE.2016.7543304","url":null,"abstract":"Synthesis and application of InP/ZnS quantum dots (InP/ZnS QDs) were synthesized via non-coordinated system. The structural model of InP/ZnS QDs was completed by using composition analysis, absorption spectroscopy and emission spectroscopy. Furthermore, their applications as phosphors were investigated. The ZnS shell-growth temperature and time was controlled to obtain QDs with different sizes and the emission wavelength. Finally, a white LED was fabricated with InP/ZnS QDs.","PeriodicalId":127324,"journal":{"name":"2016 5th International Symposium on Next-Generation Electronics (ISNE)","volume":"70 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125485571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-05-04DOI: 10.1109/ISNE.2016.7543342
Ke Zhu, P. Pong
Space and cost limitations are inherent in installing magnetic core individually as the magnetic flux concentrator (MFC) of a multi-conductor current sensing system. In this study, we first examine the basic and compact MFC structure derived from the magnetic core for multi-conductor current sensing systems. Then we propose and experimentally verify the curved trapezoidal MFCs with covering the dense magnetic field area to further improve the amplification ratio. The design increases sensitivity considerably and is crucial when the sensing currents are extremely low.
{"title":"Curved trapezoidal magnetic flux concentrator design for improving sensitivity of magnetic sensor in multi-conductor current measurement","authors":"Ke Zhu, P. Pong","doi":"10.1109/ISNE.2016.7543342","DOIUrl":"https://doi.org/10.1109/ISNE.2016.7543342","url":null,"abstract":"Space and cost limitations are inherent in installing magnetic core individually as the magnetic flux concentrator (MFC) of a multi-conductor current sensing system. In this study, we first examine the basic and compact MFC structure derived from the magnetic core for multi-conductor current sensing systems. Then we propose and experimentally verify the curved trapezoidal MFCs with covering the dense magnetic field area to further improve the amplification ratio. The design increases sensitivity considerably and is crucial when the sensing currents are extremely low.","PeriodicalId":127324,"journal":{"name":"2016 5th International Symposium on Next-Generation Electronics (ISNE)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132089579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-05-04DOI: 10.1109/ISNE.2016.7543324
N. Q. Anh, Thoai Phu Vo
This study presents a novel solution, application of the red Y2O3:Eu3+ dopant phosphor, for enhancing color rendering index to more 86 for multi-chip white LED lamps (MCW-LEDs) having correlated color temperature (CCT) of 7700 K. Besides, the impacts of the Y2O3:Eu3+ phosphor on the attenuation of light through phosphor layers of the various packages is also demonstrated based on the Beer-Lambert law. Simulation results provide important conclusion for selecting and developing the phosphor materials in MCW-LEDs manufacturing.
{"title":"Improvement of color rendering ability for multi-chip LED packages by using Y2O3:Eu3+ phosphor","authors":"N. Q. Anh, Thoai Phu Vo","doi":"10.1109/ISNE.2016.7543324","DOIUrl":"https://doi.org/10.1109/ISNE.2016.7543324","url":null,"abstract":"This study presents a novel solution, application of the red Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> dopant phosphor, for enhancing color rendering index to more 86 for multi-chip white LED lamps (MCW-LEDs) having correlated color temperature (CCT) of 7700 K. Besides, the impacts of the Y<sub>2</sub>O<sub>3</sub>:Eu<sup>3+</sup> phosphor on the attenuation of light through phosphor layers of the various packages is also demonstrated based on the Beer-Lambert law. Simulation results provide important conclusion for selecting and developing the phosphor materials in MCW-LEDs manufacturing.","PeriodicalId":127324,"journal":{"name":"2016 5th International Symposium on Next-Generation Electronics (ISNE)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133262643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-05-04DOI: 10.1109/ISNE.2016.7543398
Yu-Sung Liu, Hui-Chi Lin, K. Yang
In this paper, the transmittance of the micro-encapsulated cholesteric liquid crystal was changed by the pump beam. The opto-thermal effect, induced by the PEDOT absorbing layer, results in the variation of the transmittance on the cholesteric liquid crystal thin films. We discussed the possibility of utilizing this material for the application of flexible electronic papers by evaluating the thickness of cholesteric liquid crystal layer and the PEDOT layer, respectively. The results showed that the patterning effect is better for the sample of 12 μm thick cholesteric liquid crystal layer than that of 25 μm at the same excitation conditions and the same thickness of the PEDOT layer. And the patterning effect is better for the sample of 7.5 μm thick PEDOT than that of 5.5 μm at the same excitation conditions and the same thickness of the cholesteric liquid crystal layer. We also successfully achieved a gray-scale pattern on cholesteric liquid crystal using shutter to control the light excitation time. To explore the reason why the cholesteric liquid crystal appeared a transmittance variation when pumped, two experiments were checked: (1) Under the optical field within the pump intensity range of this experiment, the transmittance of cholesteric liquid crystal were irrelevant to the angles between the pump and probe polarizations. (2) As for the opto-thermal effects, a simple heat-conducting model was proposed to fit with the experimental results. The theoretical and experimental results agree well with this model.
{"title":"The opto-thermal effect on the encapsulated cholesteric liquid crystal","authors":"Yu-Sung Liu, Hui-Chi Lin, K. Yang","doi":"10.1109/ISNE.2016.7543398","DOIUrl":"https://doi.org/10.1109/ISNE.2016.7543398","url":null,"abstract":"In this paper, the transmittance of the micro-encapsulated cholesteric liquid crystal was changed by the pump beam. The opto-thermal effect, induced by the PEDOT absorbing layer, results in the variation of the transmittance on the cholesteric liquid crystal thin films. We discussed the possibility of utilizing this material for the application of flexible electronic papers by evaluating the thickness of cholesteric liquid crystal layer and the PEDOT layer, respectively. The results showed that the patterning effect is better for the sample of 12 μm thick cholesteric liquid crystal layer than that of 25 μm at the same excitation conditions and the same thickness of the PEDOT layer. And the patterning effect is better for the sample of 7.5 μm thick PEDOT than that of 5.5 μm at the same excitation conditions and the same thickness of the cholesteric liquid crystal layer. We also successfully achieved a gray-scale pattern on cholesteric liquid crystal using shutter to control the light excitation time. To explore the reason why the cholesteric liquid crystal appeared a transmittance variation when pumped, two experiments were checked: (1) Under the optical field within the pump intensity range of this experiment, the transmittance of cholesteric liquid crystal were irrelevant to the angles between the pump and probe polarizations. (2) As for the opto-thermal effects, a simple heat-conducting model was proposed to fit with the experimental results. The theoretical and experimental results agree well with this model.","PeriodicalId":127324,"journal":{"name":"2016 5th International Symposium on Next-Generation Electronics (ISNE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130654764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-05-04DOI: 10.1109/ISNE.2016.7543343
Ke Zhu, C. Sum, W. Lee, P. Pong
Identification of voltage-energized cables can potentially prevent deadly consequences such as electrocution and explosion. We find that the voltage-energized status can be identified by measuring the distribution pattern of magnetic flux density around the cable surface. The weak magnetic fields emitted from the charging current of the voltage-energized cable are measured by sensitive magnetoresistive sensors in high spatial resolution. The feasibility of this non-destructive platform was verified on a 22 kV three-phase underground power cable. The platform can improve situational awareness of serviceman dramatically.
{"title":"Voltage-energized status identification of three-phase underground power cables via non-destructive magnetoresistive sensor","authors":"Ke Zhu, C. Sum, W. Lee, P. Pong","doi":"10.1109/ISNE.2016.7543343","DOIUrl":"https://doi.org/10.1109/ISNE.2016.7543343","url":null,"abstract":"Identification of voltage-energized cables can potentially prevent deadly consequences such as electrocution and explosion. We find that the voltage-energized status can be identified by measuring the distribution pattern of magnetic flux density around the cable surface. The weak magnetic fields emitted from the charging current of the voltage-energized cable are measured by sensitive magnetoresistive sensors in high spatial resolution. The feasibility of this non-destructive platform was verified on a 22 kV three-phase underground power cable. The platform can improve situational awareness of serviceman dramatically.","PeriodicalId":127324,"journal":{"name":"2016 5th International Symposium on Next-Generation Electronics (ISNE)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130058613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-05-04DOI: 10.1109/ISNE.2016.7543405
Dong-mei Zhao, Lixin Zheng, R. Xu, Xu Zhang
With large scale Distributed Generation (DG) connected to the distribution network, the topology structure of the distribution network has become more complex. Moreover, it brings some negative effects to the traditional fault location method. In order to achieve a more efficient and accurate fault location method, this paper proposed a new fault location method which is based on Amplitude and Phase of Current for the Distribution network with DG. The proposed method is not only simple and easy to implement, but also can accurately locate the fault. Simulation results verify that this method is effective and feasible.
{"title":"A fault location method for Distribution network with DG system based on amplitude and phase of the current","authors":"Dong-mei Zhao, Lixin Zheng, R. Xu, Xu Zhang","doi":"10.1109/ISNE.2016.7543405","DOIUrl":"https://doi.org/10.1109/ISNE.2016.7543405","url":null,"abstract":"With large scale Distributed Generation (DG) connected to the distribution network, the topology structure of the distribution network has become more complex. Moreover, it brings some negative effects to the traditional fault location method. In order to achieve a more efficient and accurate fault location method, this paper proposed a new fault location method which is based on Amplitude and Phase of Current for the Distribution network with DG. The proposed method is not only simple and easy to implement, but also can accurately locate the fault. Simulation results verify that this method is effective and feasible.","PeriodicalId":127324,"journal":{"name":"2016 5th International Symposium on Next-Generation Electronics (ISNE)","volume":"418 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124281810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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