Pub Date : 2016-12-01DOI: 10.1109/WIECON-ECE.2016.8009083
A. Reddy, A. D. Sarma
In modern satellite based navigation systems for aviation applications, Ground Based Augmentation System (GBAS) is set to become an important part of the systems for ensuring safe and reliable Precision Approach (PA) and landing of aircrafts. The performance of GBAS is limited by spatial decorrelation of ionospheric delays (spatial gradients). No significant work has been done on this aspect at low and equatorial latitude regions, especially in the context of LAAS. In our statistical analysis of spatial gradients, TEC data from Indian Space Based Augmentation System (SBAS), namely GAGAN stations is used. Probability Density Function (PDF) of ionospheric gradients is compared with one-sigma Gaussian curve, to compute the bounding sigma, which in turn will be used in the estimation of Protection Levels (PLs) by the aircraft. Variation of gradients with respect to two key parameters namely latitude and longitude have been analyzed. Our results show that, the bounding sigma is high at low latitudes and varies drastically as latitude changes. But for a given latitude, longitudinal variations do not have much effect on the bounding sigma. Results presented in this paper helps to design and develop an efficient GBAS for low-latitude regions.
{"title":"Effect of latitude and longitude on bounding sigma at low-latitude stations for GBAS applications","authors":"A. Reddy, A. D. Sarma","doi":"10.1109/WIECON-ECE.2016.8009083","DOIUrl":"https://doi.org/10.1109/WIECON-ECE.2016.8009083","url":null,"abstract":"In modern satellite based navigation systems for aviation applications, Ground Based Augmentation System (GBAS) is set to become an important part of the systems for ensuring safe and reliable Precision Approach (PA) and landing of aircrafts. The performance of GBAS is limited by spatial decorrelation of ionospheric delays (spatial gradients). No significant work has been done on this aspect at low and equatorial latitude regions, especially in the context of LAAS. In our statistical analysis of spatial gradients, TEC data from Indian Space Based Augmentation System (SBAS), namely GAGAN stations is used. Probability Density Function (PDF) of ionospheric gradients is compared with one-sigma Gaussian curve, to compute the bounding sigma, which in turn will be used in the estimation of Protection Levels (PLs) by the aircraft. Variation of gradients with respect to two key parameters namely latitude and longitude have been analyzed. Our results show that, the bounding sigma is high at low latitudes and varies drastically as latitude changes. But for a given latitude, longitudinal variations do not have much effect on the bounding sigma. Results presented in this paper helps to design and develop an efficient GBAS for low-latitude regions.","PeriodicalId":412645,"journal":{"name":"2016 IEEE International WIE Conference on Electrical and Computer Engineering (WIECON-ECE)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116718569","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 : 2016-12-01DOI: 10.1109/WIECON-ECE.2016.8009088
Chetan B. Khadse, M. Chaudhari, V. Borghate
Solid State relay based single phase power quality disturbance generator is proposed in this paper. Digital control system based on microcontroller 89C51 is implemented to control the duration of power quality disturbances. Voltage sag, swell and interruption are generated. Dimmerstat is used to change the voltage levels and so to control the intensity of disturbances. Design of proposed generator is discussed. Simple design and use of easily available components makes this generator economic. It is highly suitable in power quality laboratory for experimental work. Students working on voltage sag/swell compensation and monitoring of power quality events can use this generator. Proposed generator is used as an application for PC based real time power quality monitoring system. Monitoring system is designed in LabVIEW. For fetching the real time signal, voltage sensor and data acquisition system are used. Results of real time detection of disturbances and classification of disturbances into momentary, temporary, instantaneous and under voltage or over voltage are done by monitoring system and presented in this paper.
{"title":"A laboratory set-up for power quality disturbance generator and real time power quality monitoring","authors":"Chetan B. Khadse, M. Chaudhari, V. Borghate","doi":"10.1109/WIECON-ECE.2016.8009088","DOIUrl":"https://doi.org/10.1109/WIECON-ECE.2016.8009088","url":null,"abstract":"Solid State relay based single phase power quality disturbance generator is proposed in this paper. Digital control system based on microcontroller 89C51 is implemented to control the duration of power quality disturbances. Voltage sag, swell and interruption are generated. Dimmerstat is used to change the voltage levels and so to control the intensity of disturbances. Design of proposed generator is discussed. Simple design and use of easily available components makes this generator economic. It is highly suitable in power quality laboratory for experimental work. Students working on voltage sag/swell compensation and monitoring of power quality events can use this generator. Proposed generator is used as an application for PC based real time power quality monitoring system. Monitoring system is designed in LabVIEW. For fetching the real time signal, voltage sensor and data acquisition system are used. Results of real time detection of disturbances and classification of disturbances into momentary, temporary, instantaneous and under voltage or over voltage are done by monitoring system and presented in this paper.","PeriodicalId":412645,"journal":{"name":"2016 IEEE International WIE Conference on Electrical and Computer Engineering (WIECON-ECE)","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127678455","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 : 2016-12-01DOI: 10.1109/WIECON-ECE.2016.8009130
Samee Azad, S. Fattah, N. S. Pathan, Md. Toky Foysal Talukdar, Farhin Ahmed, Projna Paromita
Segmentation of a region containing the brain tumor from 3D magnetic resonance imaging (MRI) data can help physicians to diagnose accurately the size and malignancy of the tumor. However, manual segmentation is time consuming and involves risk of having inaccurate result. In this paper, an automatic method of segmenting the region of interest (ROI), a region encompassing the brain tumor and its neighborhood, is proposed based on voxel statistics. In the proposed method, first possible candidate selection is performed utilizing intensity characteristics of tumor region in the FLAIR and T1 images of MRI data. Next, a cubic shaped 3D mean filtering operation is applied on the whole volumetric data to obtain filtered volume where some random intensity behavior is expected to be eliminated. Finally, from the resulting 3D FLAIR data, ROI is extracted based on cumulative distribution function of intensity. It is found that the extracted ROI offers significant reduction of the overall MRI volume without losing tumor data. The proposed ROI extraction scheme is tested on 20 real life high grade tumor cases obtained from a widely used database and a very satisfactory performance is obtained in terms of segmentation accuracy, overall volume reduction and computational time.
{"title":"An efficient scheme for detecting region of interest encompassing the brain tumor from 3D MRI data based on voxel statistics","authors":"Samee Azad, S. Fattah, N. S. Pathan, Md. Toky Foysal Talukdar, Farhin Ahmed, Projna Paromita","doi":"10.1109/WIECON-ECE.2016.8009130","DOIUrl":"https://doi.org/10.1109/WIECON-ECE.2016.8009130","url":null,"abstract":"Segmentation of a region containing the brain tumor from 3D magnetic resonance imaging (MRI) data can help physicians to diagnose accurately the size and malignancy of the tumor. However, manual segmentation is time consuming and involves risk of having inaccurate result. In this paper, an automatic method of segmenting the region of interest (ROI), a region encompassing the brain tumor and its neighborhood, is proposed based on voxel statistics. In the proposed method, first possible candidate selection is performed utilizing intensity characteristics of tumor region in the FLAIR and T1 images of MRI data. Next, a cubic shaped 3D mean filtering operation is applied on the whole volumetric data to obtain filtered volume where some random intensity behavior is expected to be eliminated. Finally, from the resulting 3D FLAIR data, ROI is extracted based on cumulative distribution function of intensity. It is found that the extracted ROI offers significant reduction of the overall MRI volume without losing tumor data. The proposed ROI extraction scheme is tested on 20 real life high grade tumor cases obtained from a widely used database and a very satisfactory performance is obtained in terms of segmentation accuracy, overall volume reduction and computational time.","PeriodicalId":412645,"journal":{"name":"2016 IEEE International WIE Conference on Electrical and Computer Engineering (WIECON-ECE)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130710371","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 : 2016-12-01DOI: 10.1109/WIECON-ECE.2016.8009079
B. Krishna, B. Nalinikant, M. Rao, D. K. Golhani, Manisha Soni Golhani
In this research, mercury (Hg) nano range (4nm–40nm) particles were synthesized by a new biophysical technique. Mercury nano range particles had been fabricated by biological cells (Staphylococcus sciuri) under low magnetic field and size depends on the kind of biological cells and the strength of magnetic field. A low strength of magnetic field and good quantity of biological cells facilitated the formation of mercury nano range particles which is due to the effect of environment created by the biological cells on Hg under magnetic field. The purpose of this paper is to report synthesis of mercury nano range particles.
{"title":"Synthesis of mercury (Hg) nano range particles","authors":"B. Krishna, B. Nalinikant, M. Rao, D. K. Golhani, Manisha Soni Golhani","doi":"10.1109/WIECON-ECE.2016.8009079","DOIUrl":"https://doi.org/10.1109/WIECON-ECE.2016.8009079","url":null,"abstract":"In this research, mercury (Hg) nano range (4nm–40nm) particles were synthesized by a new biophysical technique. Mercury nano range particles had been fabricated by biological cells (Staphylococcus sciuri) under low magnetic field and size depends on the kind of biological cells and the strength of magnetic field. A low strength of magnetic field and good quantity of biological cells facilitated the formation of mercury nano range particles which is due to the effect of environment created by the biological cells on Hg under magnetic field. The purpose of this paper is to report synthesis of mercury nano range particles.","PeriodicalId":412645,"journal":{"name":"2016 IEEE International WIE Conference on Electrical and Computer Engineering (WIECON-ECE)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130973695","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 : 2016-12-01DOI: 10.1109/WIECON-ECE.2016.8009117
T. Rachcha, S. Funde, Naresh Dhopare, Kiran Harihar
Recently our Honourable Prime Minister Mr. Narendra Modi has announced a scheme for villagers related to irrigation purpose. Under this scheme solar powered dc motor will be used for running pumps in farms financed by Government of India. In this context an effort is made to design light weight magnetically levitated solar powered dc machine which can work at same time as motor and generator. The proposed dc machine is also directly solar powered thus bypassing the use of the battery for storing the solar energy. Hall Effect sensors are used for switching on and switching off and speed control of the proposed dc machine. However in the absence of sunlight, battery (charged from solar energy) can be attached to the proposed dc machine. The structure of the machine is made from acrylic sheet, the rotor is made using a disc cut from acrylic sheet and stator windings are wound on light weighted bobbins. Total twelve coils are used in the stator out of which six coils are used for motoring purpose and remaining six coils are used for generation purpose. The proposed dc machine is a brushless dc machine hence avoiding the use of commutators. Thus by making the above mentioned modifications in the construction of the conventional existing dc machine, the size, weight, volume and cost of the proposed dc machine is reduced drastically. As the designed dc machine can work as motor and generator at the same time, hence it can be used by the farmers for irrigation purpose during day time and for lighting their homes during night.
{"title":"Magnetic levitation of solar powered motor with forward-reverse operation: Mathematical design consideration","authors":"T. Rachcha, S. Funde, Naresh Dhopare, Kiran Harihar","doi":"10.1109/WIECON-ECE.2016.8009117","DOIUrl":"https://doi.org/10.1109/WIECON-ECE.2016.8009117","url":null,"abstract":"Recently our Honourable Prime Minister Mr. Narendra Modi has announced a scheme for villagers related to irrigation purpose. Under this scheme solar powered dc motor will be used for running pumps in farms financed by Government of India. In this context an effort is made to design light weight magnetically levitated solar powered dc machine which can work at same time as motor and generator. The proposed dc machine is also directly solar powered thus bypassing the use of the battery for storing the solar energy. Hall Effect sensors are used for switching on and switching off and speed control of the proposed dc machine. However in the absence of sunlight, battery (charged from solar energy) can be attached to the proposed dc machine. The structure of the machine is made from acrylic sheet, the rotor is made using a disc cut from acrylic sheet and stator windings are wound on light weighted bobbins. Total twelve coils are used in the stator out of which six coils are used for motoring purpose and remaining six coils are used for generation purpose. The proposed dc machine is a brushless dc machine hence avoiding the use of commutators. Thus by making the above mentioned modifications in the construction of the conventional existing dc machine, the size, weight, volume and cost of the proposed dc machine is reduced drastically. As the designed dc machine can work as motor and generator at the same time, hence it can be used by the farmers for irrigation purpose during day time and for lighting their homes during night.","PeriodicalId":412645,"journal":{"name":"2016 IEEE International WIE Conference on Electrical and Computer Engineering (WIECON-ECE)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114242259","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 : 2016-12-01DOI: 10.1109/WIECON-ECE.2016.8009084
Shubhangi L. Karanjkar, P. Vasambekar
In India, now-a-days 95% of Indians are expected to use the bank transactions even for day-to-day requirements. Recognizing the genuine signature and finding out the fraud signature is the challenging task. Here, we have used an approach of Artificial Neural Network (ANN) to recognize the signature. In this method a signature is collected from the bank cheque by cropping the area of interest. Further it is trained and stored into the trained database. Then signatures to be tested are compared with the signatures that are stored into the test database. Area, centroid, skewness, standard deviation, mean of the signature images are the parameters used to recognize the signature. By comparing the signatures from the parameters that are derived, the system can recognize the original signature.
{"title":"Signature recognition on bank cheques using ANN","authors":"Shubhangi L. Karanjkar, P. Vasambekar","doi":"10.1109/WIECON-ECE.2016.8009084","DOIUrl":"https://doi.org/10.1109/WIECON-ECE.2016.8009084","url":null,"abstract":"In India, now-a-days 95% of Indians are expected to use the bank transactions even for day-to-day requirements. Recognizing the genuine signature and finding out the fraud signature is the challenging task. Here, we have used an approach of Artificial Neural Network (ANN) to recognize the signature. In this method a signature is collected from the bank cheque by cropping the area of interest. Further it is trained and stored into the trained database. Then signatures to be tested are compared with the signatures that are stored into the test database. Area, centroid, skewness, standard deviation, mean of the signature images are the parameters used to recognize the signature. By comparing the signatures from the parameters that are derived, the system can recognize the original signature.","PeriodicalId":412645,"journal":{"name":"2016 IEEE International WIE Conference on Electrical and Computer Engineering (WIECON-ECE)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116479081","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 : 2016-12-01DOI: 10.1109/WIECON-ECE.2016.8009093
S. Akash, Md. Al-Zihad, Tamal Adhikary, M. Razzaque, Arifa Sharmin
Sexual violence against women has become one of the most important social security problems in South Asian region. None of the existing humanitarian mobile applications exactly contains the features that a victim needs in times of danger or immediately after being victimized. In this paper, we develop a smart mobile application, namely HearMe, with multiple unique features including lock screen access and instant siren on the receiver device. The modules of HearMe application can be accessed through hardware buttons in order to facilitate quick access to the victim woman. Another important feature of HearMe is to blow a loud siren at the receiver device even if the mobile is in silent mode, increasing the reliability of getting help from the family members or hospital/police station personnel.
{"title":"HearMe: A smart mobile application for mitigating women harassment","authors":"S. Akash, Md. Al-Zihad, Tamal Adhikary, M. Razzaque, Arifa Sharmin","doi":"10.1109/WIECON-ECE.2016.8009093","DOIUrl":"https://doi.org/10.1109/WIECON-ECE.2016.8009093","url":null,"abstract":"Sexual violence against women has become one of the most important social security problems in South Asian region. None of the existing humanitarian mobile applications exactly contains the features that a victim needs in times of danger or immediately after being victimized. In this paper, we develop a smart mobile application, namely HearMe, with multiple unique features including lock screen access and instant siren on the receiver device. The modules of HearMe application can be accessed through hardware buttons in order to facilitate quick access to the victim woman. Another important feature of HearMe is to blow a loud siren at the receiver device even if the mobile is in silent mode, increasing the reliability of getting help from the family members or hospital/police station personnel.","PeriodicalId":412645,"journal":{"name":"2016 IEEE International WIE Conference on Electrical and Computer Engineering (WIECON-ECE)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124444610","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 : 2016-12-01DOI: 10.1109/WIECON-ECE.2016.8009131
Farhin Ahmed, Projna Paromita, A. Bhattacharjee, S. Saha, Samee Azad, S. Fattah
Sleep apnea is a sleep disorder that affects one's breathing during sleep. A large number of people all over the world are suffering from this disease. Electroencephalogram (EEG) provides electrical activity of the brain signal that enables physicians to diagnose and monitor sleep apnea events. In this paper, an efficient scheme for classifying apnea and non-apnea events of an apnea patient is proposed based on temporal variation of Beta band energy in a frame of EEG data. Unlike conventional approaches, instead of extracting features from the whole frame at a time, a given test frame of EEG signal is divided into overlapping sub-frames and spectral characteristics are extracted from each pre-processed sub-frame. By investigating the spectro-temporal characteristics of all the traditional frequency bands of EEG signal, it is found that the temporal variation of spectral energy in Beta band plays the dominant role in classifying apnea and non-apnea events. Statistical features are extracted from the temporal pattern of Beta band energy and are used in K nearest neighborhood classifier. Extensive experimentation is carried out on several apnea patients with various apnea indices and a very satisfactory apnea detection performance is achieved in comparison to that obtained by some existing methods.
{"title":"Detection of sleep apnea using sub-frame based temporal variation of energy in beta band in EEG","authors":"Farhin Ahmed, Projna Paromita, A. Bhattacharjee, S. Saha, Samee Azad, S. Fattah","doi":"10.1109/WIECON-ECE.2016.8009131","DOIUrl":"https://doi.org/10.1109/WIECON-ECE.2016.8009131","url":null,"abstract":"Sleep apnea is a sleep disorder that affects one's breathing during sleep. A large number of people all over the world are suffering from this disease. Electroencephalogram (EEG) provides electrical activity of the brain signal that enables physicians to diagnose and monitor sleep apnea events. In this paper, an efficient scheme for classifying apnea and non-apnea events of an apnea patient is proposed based on temporal variation of Beta band energy in a frame of EEG data. Unlike conventional approaches, instead of extracting features from the whole frame at a time, a given test frame of EEG signal is divided into overlapping sub-frames and spectral characteristics are extracted from each pre-processed sub-frame. By investigating the spectro-temporal characteristics of all the traditional frequency bands of EEG signal, it is found that the temporal variation of spectral energy in Beta band plays the dominant role in classifying apnea and non-apnea events. Statistical features are extracted from the temporal pattern of Beta band energy and are used in K nearest neighborhood classifier. Extensive experimentation is carried out on several apnea patients with various apnea indices and a very satisfactory apnea detection performance is achieved in comparison to that obtained by some existing methods.","PeriodicalId":412645,"journal":{"name":"2016 IEEE International WIE Conference on Electrical and Computer Engineering (WIECON-ECE)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131762089","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 : 2016-12-01DOI: 10.1109/WIECON-ECE.2016.8009102
S. Mitra, Ajanta Das, Snehashis Mazumder
Wireless Sensor Network (WSN) is an integration of simple sensing, processing, storage and communication technology into cheap miniature sized devices. Distributed WSN is used for ambient intelligence, where tiny senor nodes sense, process and communicate signals to the base station (BS) for smart decision making. Nodes are deployed randomly in any unattended area for monitoring any physical attribute of the same; hence faults are quite trivial to take place. Therefore to maintain health of WSN, in-built self evaluation and in-built self recovery, is necessary. In this article various fault recovery techniques are studied and analyzed, which can enlighten us for proposing a novel energy aware fault recovery scheme for homogeneous WSN in future; which further can be integrated with an existent fault tolerant framework already proposed by us. This study also enables to get a clearer picture on the current state of technology for fault recovery in WSN.
{"title":"Comparative study of fault recovery techniques in Wireless Sensor Network","authors":"S. Mitra, Ajanta Das, Snehashis Mazumder","doi":"10.1109/WIECON-ECE.2016.8009102","DOIUrl":"https://doi.org/10.1109/WIECON-ECE.2016.8009102","url":null,"abstract":"Wireless Sensor Network (WSN) is an integration of simple sensing, processing, storage and communication technology into cheap miniature sized devices. Distributed WSN is used for ambient intelligence, where tiny senor nodes sense, process and communicate signals to the base station (BS) for smart decision making. Nodes are deployed randomly in any unattended area for monitoring any physical attribute of the same; hence faults are quite trivial to take place. Therefore to maintain health of WSN, in-built self evaluation and in-built self recovery, is necessary. In this article various fault recovery techniques are studied and analyzed, which can enlighten us for proposing a novel energy aware fault recovery scheme for homogeneous WSN in future; which further can be integrated with an existent fault tolerant framework already proposed by us. This study also enables to get a clearer picture on the current state of technology for fault recovery in WSN.","PeriodicalId":412645,"journal":{"name":"2016 IEEE International WIE Conference on Electrical and Computer Engineering (WIECON-ECE)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131862602","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 : 2016-12-01DOI: 10.1109/WIECON-ECE.2016.8009122
Purnima Mandal, B. Roy
An adaptive dimming scheme is proposed for a daylight pipe(DLP) integrated indoor general lighting system to maintain the desired illuminance level and uniformity of light distribution on horizontal working plane. The proposed dimming scheme simultaneously controls the lumen delivery from both DLPs and lamps. The daylight delivery of the DLPs is adjusted by a control logic based on dynamic outdoor light level whereas lamps follow separate control logic based on dynamic daylight illuminance distribution on working plane. Electrochromic(EC) glass sheet is used with emitter of DLPs to control its lumen delivery whereas lamps are driven by dimmable electronic ballasts. The outdoor daylight level is obtained with Perez All-weather sky model by utilizing measured solar radiation database. The proposed control scheme is implemented through a developed program in Matlab environment and its performance is tested by a sample indoor space at Kolkata. Simulation results are satisfactory in terms of illuminance level, its distribution and indicates significant amount of energy saving of the order of 80% for the duration 8AM to 5PM.
{"title":"Adaptive dimming scheme based daylight pipe integrated indoor lighting system under Perez All-weather sky model","authors":"Purnima Mandal, B. Roy","doi":"10.1109/WIECON-ECE.2016.8009122","DOIUrl":"https://doi.org/10.1109/WIECON-ECE.2016.8009122","url":null,"abstract":"An adaptive dimming scheme is proposed for a daylight pipe(DLP) integrated indoor general lighting system to maintain the desired illuminance level and uniformity of light distribution on horizontal working plane. The proposed dimming scheme simultaneously controls the lumen delivery from both DLPs and lamps. The daylight delivery of the DLPs is adjusted by a control logic based on dynamic outdoor light level whereas lamps follow separate control logic based on dynamic daylight illuminance distribution on working plane. Electrochromic(EC) glass sheet is used with emitter of DLPs to control its lumen delivery whereas lamps are driven by dimmable electronic ballasts. The outdoor daylight level is obtained with Perez All-weather sky model by utilizing measured solar radiation database. The proposed control scheme is implemented through a developed program in Matlab environment and its performance is tested by a sample indoor space at Kolkata. Simulation results are satisfactory in terms of illuminance level, its distribution and indicates significant amount of energy saving of the order of 80% for the duration 8AM to 5PM.","PeriodicalId":412645,"journal":{"name":"2016 IEEE International WIE Conference on Electrical and Computer Engineering (WIECON-ECE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127979758","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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