A. Krivoshei, M. Min, H. Uuetoa, Jurgen Lamp, P. Annus
{"title":"Electrical Bio-Impedance based non-invasive method for the Central Aortic blood pressure waveform estimation","authors":"A. Krivoshei, M. Min, H. Uuetoa, Jurgen Lamp, P. Annus","doi":"10.1109/BEC.2014.7320586","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320586","url":null,"abstract":"Non-invasive and safe method for estimation of the Central Aortic Pressure (CAP) waveform is presented. It is based on the measurement of Electrical Bio-Impedance (EBI) on radial artery. Reconstruction of the CAP curve from the EBI data is provided by an introduced spectral domain transfer function (TF). The TF estimation algorithm and the Augmentation Index (AI) evaluation method are described. Proposed approach is less dependent on the operator and more convenient than traditional tonometry based method. It allows continuous and long term monitoring of the AI and CAP variations. Feasibility and accuracy of the technique was evaluated in clinical surroundings by comparing invasively measured CAP and AI data with non-invasive EBI based estimates. Clinical experiments were conducted in the Heart Centre of the East-Tallinn Central Hospital during scheduled coronary angiography. Age of the patients varied randomly between 43 and 80.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128067579","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}
{"title":"Coin recognition using line scan camera","authors":"A. Gavrijaseva, O. Martens, R. Land, M. Reidla","doi":"10.1109/BEC.2014.7320581","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320581","url":null,"abstract":"In this paper simple in realization efficient imaging solution based on line-scan (1-D) camera and PC (with low-cost hardware) for euro coin recognition and validation has been proposed and investigated. Various approaches for image-based coin validation have been discussed. In proposed solution a 128-pixel linear image sensor of line scan camera with intelligent coin detection algorithm allows achieving real time, accurate results with reasonable speed. This method has been implemented and tested using Matlab on real euro coins. The presented results show, that it is reasonable to use line scan camera in coin validation technology.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132497517","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}
{"title":"Generating all test patterns for stuck-at faults at a gate pole and their connection with the incompletely specified Boolean function of the corresponding subcircuit","authors":"A. Matrosova, S. Ostanin, I. Kirienko","doi":"10.1109/BEC.2014.7320562","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320562","url":null,"abstract":"The algorithm of generating all test patterns for a stuck-at fault at a gate pole of single-output combinational circuit is suggested. It is based on the method of redefining products suggested before. It is known that a behavior of a subcircuit of a combinational circuit is presented by the incompletely specified Boolean function. It means that there are the input Boolean vectors of a circuit on which the value of the subcircuit output has no effect on the value of the circuit output. It is set up that the on-set vectors of a subcircuit incompletely specified Boolean function are represented by all test patterns for the stuck-at 0 fault at a subcircuit output and the off-set vectors are represented by all test patterns for the stuck-at 1 fault at the same output. This result may be used for structural combinational circuit minimizing and for partially programmable circuit design. The experimental results are presented.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129232538","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}
{"title":"Remote online testing of embedded systems using Optical BILBO","authors":"Abdelhakim Latoui, R. Canals","doi":"10.1109/BEC.2014.7320566","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320566","url":null,"abstract":"In this paper, an online testing approach that checks continuously at remote system the correctness of embedded systems in full operation is proposed. Our new method exploits optical beams produced by an Optical Built-In Logic-Block Observation (OBILBO) register based on the captured data presented on the outputs of all stages of the registers in the BILBO. Then it is possible to send the captured data to remote system equipped with optical sensors in real time way. The final captured response data can also be used for final comparison with stored data of a golden circuit. Preliminary simulation results showed that faults are concurrently detected without affecting normal system operation and without having recourse to any external or internal Automatic Test Pattern Generation (ATPG).","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121856720","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}
{"title":"On reliability estimation for combined transient and permanent fault handling","authors":"S. Scharoba, Mario Scholzel, T. Koal, H. Vierhaus","doi":"10.1109/BEC.2014.7320559","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320559","url":null,"abstract":"This paper addresses the problem of modeling the reliability of systems, where permanent and transient faults are handled in a combined manner. First, we briefly introduce the motivation for handling permanent and transient faults within a combined architecture. Then, based on the well known TMR scheme, we present the difference in modeling the reliability for permanent and transient faults. Subsequently, we introduce two distinct methods for modeling both fault types together and explain how the calculation of the reliability can be done. Both models vary in their accuracy and complexity. Furthermore, we apply the proposed modeling strategies to a more complex system, where permanent fault compensation is used to keep transient fault detection/masking unaffected. Modeling this system with both methods is discussed for varying system parameters and failure rates. The results show that in particular situations the use of the simple model is sufficient and makes system modeling less time consuming. But in some cases the inaccuracy of the simplified model will cause an excessively optimistic estimation of the reliability.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114490816","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}
J. Gallardo-Lozano, E. Romero-Cadaval, T. Jalakas, H. Hoimoja
{"title":"A battery cell balancing method with linear mode bypass current control","authors":"J. Gallardo-Lozano, E. Romero-Cadaval, T. Jalakas, H. Hoimoja","doi":"10.1109/BEC.2014.7320602","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320602","url":null,"abstract":"A study of a novel control method for a battery cell equaliser, based on the shunting transistor method is presented. The method allows cell balancing in both battery operating modes, recharging and driving modes. To verify the applicability of the method, computer simulation was conducted analysing how the system balances during a driving period, by following a real current profile measured from a real REVAi driving. The obtained results show how at the end of the driving period the system is already balanced, allowing a subsequent high speed charge and avoiding a later equalisation stage. Finally, the integration of the balancing system into a higher level system, based on a multiport converter topology is discussed.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130142111","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}
{"title":"Towards context-sensitive dialogue with robot companion","authors":"J. Vain, Helena Sarapuu","doi":"10.1109/BEC.2014.7320592","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320592","url":null,"abstract":"Novel principles of implementing human-robot dialog using logic programming framework are outlined. Our inference mechanism makes use of semantic knowledge base and context sensitive clausal reasoning. Proposed normal forms and weak unification relation support efficient back- and forward chaining for dialog interpretation/control. Context driven dialog implementation is shown on autistic children training example.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130317317","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}
{"title":"Short delay measurement using non-uniform Fourier transform","authors":"K. Dudácek, V. Vavricka","doi":"10.1109/BEC.2014.7320582","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320582","url":null,"abstract":"The article describes a method for measurement of signals delay using non-uniform Fourier transform. A brief characterization of measured signals as well as a characterization of common delay measurement methods is given in the first two chapters. In the next chapters a method for signals delay measurement using non-uniform sampling and non-uniform Fourier transform is presented. Results of numeric experiments are provided in the last chapter.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116321752","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}
{"title":"Control of quasi-Z-source dc-dc converter by the overlap of active states: New possibilities and limitations","authors":"I. Roasto, Liisa Liivik, D. Vinnikov","doi":"10.1109/BEC.2014.7320595","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320595","url":null,"abstract":"Previous studies have clearly shown that shoot-through generation by the overlap of active states has better operating parameters than other shoot-through generation methods. However, due to some disadvantages, this method has never been studied in detail. This paper is filling the gap by examining the shoot-through generation method by the overlap of active states. The disadvantages are explained and solutions are proposed. Moreover, a novel shifted overlap shoot-through modulation method is proposed and compared with the known symmetrical overlap method. Theoretical analysis is verified by the experiments on a real test prototype.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130362842","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}
{"title":"Collision warning algorithm for passage of an uncontrolled road intersection","authors":"J. Ahrems","doi":"10.1109/BEC.2014.7320553","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320553","url":null,"abstract":"Road traffic safety is one of the priorities in development of intelligent transport systems. Collision warning devices, which operate on the basis of integrated use of satellite navigation and vehicle-to-vehicle communication (V2V), are intended to supplement the existing driver-assisting systems. The present article proposes an algorithm of safe passage of uncontrolled road intersection using information obtained by means of the GPS and V2V.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"284 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124264110","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}