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2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)最新文献

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Determining the LEDs junction temperature as a function of forward voltage in given operating conditions 在给定的工作条件下，确定led结温作为正向电压的函数
2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI) Pub Date : 2016-06-01 DOI: 10.1109/ECAI.2016.7861120
Badalan Draghici Niculina, Svasta Paul, I. Ciprian
{"title":"Determining the LEDs junction temperature as a function of forward voltage in given operating conditions","authors":"Badalan Draghici Niculina, Svasta Paul, I. Ciprian","doi":"10.1109/ECAI.2016.7861120","DOIUrl":"https://doi.org/10.1109/ECAI.2016.7861120","url":null,"abstract":"High-power LEDs have many advantages for use in lighting systems. To benefit from these advantages we need to ensure proper heat management. In this paper forward voltage variation is studied as a function of ambient temperature variation at the same supply current. The aim of the study is to estimate the junction temperature as a function of ambient temperature and forward voltage. Two types of LEDs are analyzed (18W COB (chip on board) type and 1W) at different operating temperatures. The concept is not new but the temperature range for which measurements were performed includes temperatures lower than 25 ° C and even temperatures below zero; also one of the LEDs is COB. The results are presented and analyzed.","PeriodicalId":122809,"journal":{"name":"2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115785936","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}
引用次数: 2
Communications based train control with Ad-hoc networks 基于通信的列车控制与自组织网络
2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI) Pub Date : 2016-06-01 DOI: 10.1109/ECAI.2016.7861173
Marius Enulescu
{"title":"Communications based train control with Ad-hoc networks","authors":"Marius Enulescu","doi":"10.1109/ECAI.2016.7861173","DOIUrl":"https://doi.org/10.1109/ECAI.2016.7861173","url":null,"abstract":"Metro intelligent transport city systems should ensure a high train cadence and have increased safety in high traffic conditions. Current signaling systems CBTC can provide a safe minimum distance between two successive trains −50 m theoretically but practically 200 m due to delays in the transmission chain of processing and transmission of data, which includes the central server, interlocking equipments by local stations and adjacent systems. The new system aims to reduce the gap by using direct communication between successive trains so as to eliminate delays due to communication equipment exclusively at reserve and subsequently lock the route.","PeriodicalId":122809,"journal":{"name":"2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129049732","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}
引用次数: 1
Platform for monitoring the temperature of power LED junction by using the embedded protection diode 利用嵌入式保护二极管监测电源LED结温的平台
2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI) Pub Date : 2016-06-01 DOI: 10.1109/ECAI.2016.7861122
D. Vuza, M. Vlădescu
{"title":"Platform for monitoring the temperature of power LED junction by using the embedded protection diode","authors":"D. Vuza, M. Vlădescu","doi":"10.1109/ECAI.2016.7861122","DOIUrl":"https://doi.org/10.1109/ECAI.2016.7861122","url":null,"abstract":"The junction operating temperature of a power LED can be estimated by measuring with a thermocouple the temperature of the closest accessible metal part of the LED package, which is in most of the cases one of the electrical terminals, and making a calculation by taking into consideration the thermal resistances of the materials included in the LED structure. In the situations where the electrical terminals are not accessible, being placed right under the LED package, the thermocouple could be placed on the mounting PCB used heatsink, as close as possible to the thermal pad of the LED, but this may introduce errors, making the temperature estimation not accurate. The junction operating temperature can also be estimated by measuring the forward voltage of the LED, knowing the temperature coefficient of the forward voltage. In this paper the authors proposed an innovative method for measuring the operating temperature of power LEDs, using as temperature sensor the protection reverse diode embedded in the LED package.","PeriodicalId":122809,"journal":{"name":"2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130384046","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}
引用次数: 3
Communications in railway centralized traffic control systems: Communications 铁路集中交通控制系统中的通信。通信
2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI) Pub Date : 2016-06-01 DOI: 10.1109/ECAI.2016.7861156
Mihai Dima, I. A. Chihaia, M. Surugiu
{"title":"Communications in railway centralized traffic control systems: Communications","authors":"Mihai Dima, I. A. Chihaia, M. Surugiu","doi":"10.1109/ECAI.2016.7861156","DOIUrl":"https://doi.org/10.1109/ECAI.2016.7861156","url":null,"abstract":"Centralized Traffic Control system for railways overlaps hierarchically over interlocking and fixed block installations that allows traffic control between railway stations and represents the management core and organization of railway traffic. This paper shows the necessity of CTC use since this centralized control model decisions and related implementation actions concerning traffic control are carried out by the same entity and setting routes or changing signal aspects are tasks performed by remote control from the respective positions. Network management involves the centralized traffic control for an optimum system with the following functions: Ethernet network design; maintenance and control the local network security; remediation of faulty or failing system equipment; the correct management of the local network (IP, communications equipment, specific applications); maintaining appropriate quality standards in terms of network configurations. Presented simulation achieved in MATLAB can be used as a basis for designing an electronic track circuit for train detection and data transmission.","PeriodicalId":122809,"journal":{"name":"2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116610282","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}
引用次数: 4
The low cost voltage and current measurement device design for power converters 电源变换器低成本电压电流测量装置的设计
2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI) Pub Date : 2016-06-01 DOI: 10.1109/ECAI.2016.7861183
Y. Kabalci, E. Kabalci
{"title":"The low cost voltage and current measurement device design for power converters","authors":"Y. Kabalci, E. Kabalci","doi":"10.1109/ECAI.2016.7861183","DOIUrl":"https://doi.org/10.1109/ECAI.2016.7861183","url":null,"abstract":"The sensing circuits are very important devices to measure for both current and voltage magnitudes of the systems. This paper presents a new sensing circuit design with significant advantages for DC voltage systems. The proposed sensing circuit is capable to measure currents and voltages by means of one current transducer and resistor network of voltage measurement. The accuracy and reliability of the proposed circuit are ensured by employing operational amplifier that can detect μV-level voltage variations at the differential inputs. Moreover, the proposed system is checked against to the previously one reported by authors in terms of overall cost, superiorities and drawbacks. The performed experimental studies showed that the proposed sensing circuit offers several significant advantages such as very low cost, very high accuracy and very low power supply requirements with respect to the formerly designed system.","PeriodicalId":122809,"journal":{"name":"2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132449500","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}
引用次数: 10
A new approach in efficieny analysis of induction motor without using torquemeter and encoder 一种不使用转矩仪和编码器的异步电机效率分析新方法
2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI) Pub Date : 2016-06-01 DOI: 10.1109/ECAI.2016.7861149
A. Mamizadeh, I. Iskender
{"title":"A new approach in efficieny analysis of induction motor without using torquemeter and encoder","authors":"A. Mamizadeh, I. Iskender","doi":"10.1109/ECAI.2016.7861149","DOIUrl":"https://doi.org/10.1109/ECAI.2016.7861149","url":null,"abstract":"Induction motors have very large application areas in industry and urban systems like water pumping and distribution systems, steel and paper industries and etc. Monitoring and controlling the motor operation, have important effect on the operating performance of the motor, driver selection and replacement strategy management of electrical machines. This study describes a sensor less method for monitoring and calculating efficiency of induction motors. Verification and comparing of two sensor less and conventional method have been derived in this study. The method verification was applied on two different three phase induction motors with rated powers of 3 kW and 5.5 kW. The proposed method can be used for optimal control of induction motors, efficiency monitoring and motor replacement strategy.","PeriodicalId":122809,"journal":{"name":"2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116247877","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}
引用次数: 0
Facial beauty assessment under unconstrained conditions 无约束条件下的面部美评价
2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI) Pub Date : 2016-06-01 DOI: 10.1109/ECAI.2016.7861087
Mengjia Yan, Yurou Duan, Siqi Deng, Wenjia Zhu, Xiaoyu Wu
{"title":"Facial beauty assessment under unconstrained conditions","authors":"Mengjia Yan, Yurou Duan, Siqi Deng, Wenjia Zhu, Xiaoyu Wu","doi":"10.1109/ECAI.2016.7861087","DOIUrl":"https://doi.org/10.1109/ECAI.2016.7861087","url":null,"abstract":"The research of facial beauty is an interdisciplinary topic involved in psychology, aesthetics, computer version and machine learning. In this paper, we propose several methods to assess facial beauty under unconstrained conditions. Our main works are as follows: First, we apply the local binary pattern (LBP) descriptor in different bins for face representation. We tried different types of LBP methods in predicting face beauty, and finally choose the method of dividing the image into 4∗4 sub-regions, and then get LBP features from those sub-regions and the whole image, respectively. Second, we operate Support Vector Machine (SVM) classifier, Random Forest, neural network and Linear Regression to do the beauty assessment task, and make a comparison of the performance of these methods. Additionally, we establish a large-scale Asian face database labeled with beauty score under unconstrained conditions.","PeriodicalId":122809,"journal":{"name":"2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114637524","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}
引用次数: 8
Perspective of the Romanian remigrant students on the process of adapting to the Romanian school 透视罗马尼亚移民学生对罗马尼亚学校的适应过程
2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI) Pub Date : 2016-06-01 DOI: 10.1109/ECAI.2016.7861066
Claudiu Langa, F. Dumitru
{"title":"Perspective of the Romanian remigrant students on the process of adapting to the Romanian school","authors":"Claudiu Langa, F. Dumitru","doi":"10.1109/ECAI.2016.7861066","DOIUrl":"https://doi.org/10.1109/ECAI.2016.7861066","url":null,"abstract":"Work abroad appears as a saving version among the uncertainties which many of us encounter. The phenomenon is relatively recent and “information is not sufficient for a complete doctrine.” [1]. According to a study of the Romanian Academy since 2007, migration is selective, because especially young people and a segment of valuable, competitive and well trained labour are migrating, thus reducing the number of active people remaining to work in Romania [2]. Migration occurred especially in monoindustrial areas, where a lot of layoffs have been performed and, once arrived abroad, many started doing works beneath their skill level, as it also mentioned in the study. However, amid the economic crisis, many immigrants were forced to return to their countries of origin. “Tens of thousands of Romanians have already lost their jobs in Spain and Italy and concerns regarding problems related to massive returns are becoming increasingly critical.” [3]. Integration of remigrant students is influenced by school, family, community, environment, but, time factor is crucial. Age and time spent abroad by the student are of a particular importance in the students' ability to adapt/readapt to a new education system. This study highlights the situation of the remigrant pupils in terms of their adapting to the Romanian education system.","PeriodicalId":122809,"journal":{"name":"2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125585493","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}
引用次数: 0
Delta encoder for fiber optic based data transmission of signals from sensors 用于基于光纤的传感器信号数据传输的增量编码器
2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI) Pub Date : 2016-06-01 DOI: 10.1109/ECAI.2016.7861121
D. Visan, M. Jurian, I. B. Cioc, L. Ionescu, A. Lita
{"title":"Delta encoder for fiber optic based data transmission of signals from sensors","authors":"D. Visan, M. Jurian, I. B. Cioc, L. Ionescu, A. Lita","doi":"10.1109/ECAI.2016.7861121","DOIUrl":"https://doi.org/10.1109/ECAI.2016.7861121","url":null,"abstract":"In this paper are presented the results regarding the design and the implementation of a efficient delta encoder that is intended to be used for conditioning of signals from analogue sensors. In addition is proposed a dedicate circuit architecture for transmission of digitally encoded signals from sensors to remote measurement systems using a very reliable communication media that is represented by the optical fiber. The advantage of a reduced bit rate generated by the delta encoder correlated with the intrinsic advantages of the optical fibers, especially the immunity to electric perturbations, leaded to a attractive implementation solution for a conditioning interface that can be used in complex acquisition and measurement systems. Also, the proposed delta encoder and the fiber optic based transmission system can be used in didactical laboratories for teaching advanced communication techniques.","PeriodicalId":122809,"journal":{"name":"2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126408567","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}
引用次数: 1
Some results on change detection based on advanced signal processing paradigm 基于先进信号处理范式的变化检测
2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI) Pub Date : 2016-06-01 DOI: 10.1109/ECAI.2016.7861080
Anisia Culea-Florescu, D. Aiordachioaie
{"title":"Some results on change detection based on advanced signal processing paradigm","authors":"Anisia Culea-Florescu, D. Aiordachioaie","doi":"10.1109/ECAI.2016.7861080","DOIUrl":"https://doi.org/10.1109/ECAI.2016.7861080","url":null,"abstract":"This work considers the problem of change detection of working regimes from industrial processes, e.g. electric machines with rotation elements, and which generates mechanical vibrations. Two approaches are considered: (i) based on signal processing and pattern recognition methods; (ii) based on sparse methods. The objective of the paper is to evaluate the preliminary results obtained by the above approaches and to promote methods based on sparse representations and computations for change detection problems, as alternative to classical methods based on transform or pattern recognition. The results are encouraging and suggest that more studies on the method of sparse computation as an optimal candidate for change detection from time detection point of view is needed.","PeriodicalId":122809,"journal":{"name":"2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124159082","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}
引用次数: 0
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