A. Otero, R. Fernández, A. Apalkov, M. Armada, Francisco Palacios
{"title":"An add-on solution to take measures automatically from critical care urine meters","authors":"A. Otero, R. Fernández, A. Apalkov, M. Armada, Francisco Palacios","doi":"10.1109/WISP.2011.6051701","DOIUrl":"https://doi.org/10.1109/WISP.2011.6051701","url":null,"abstract":"Critical care patients have most of their physiological parameters automatically sensed by sophisticated commercial monitoring devices. These devices can also supervise whether the values of each parameter lie within a preestablished normal range, and warn of deviations from this range by triggering audible alarms. Automation of the sensing and supervision of physiological parameters discharges the healthcare staff of a considerable workload. Furthermore, it avoids human errors, which are common in repetitive and monotonous tasks. However, there is still a very relevant physiological parameter that is sensed and supervised manually by the healthcare staff: urine output. In this paper we present a patent-pending addon solution that can be easily incorporated into commercial urine meters to transform these manual measuring devices into automated measuring devices. The solution is based on capacitive sensors capable of taking continuous measurements of the height of the column of liquid accumulated in the various chambers that make up a commercial urine meter. An electronic unit sends the measures of the capacitive sensors via Bluetooth to a PC which calculates the urine output from this information and supervises the achievement of therapeutic goals.","PeriodicalId":223520,"journal":{"name":"2011 IEEE 7th International Symposium on Intelligent Signal Processing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122750706","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 online operation of a RBF neural network model to forecast the Portuguese electricity consumption","authors":"P. Ferreira, A. Ruano, R. Pestana","doi":"10.1109/WISP.2011.6051697","DOIUrl":"https://doi.org/10.1109/WISP.2011.6051697","url":null,"abstract":"In previous work the authors successfully identified a radial basis function neural network to forecast the Portuguese electricity consumption profile within a 48 hour predictive horizon. As the model is a static mapping employing external dynamics and the electricity consumption trends and dynamics are varying with time, its predictive performance degrades after a certain period. One of the simpler ways to counteract this effect is by retraining the model at certain time intervals. In this paper this methodology is investigated considering regular and irregular retraining periods. For the latter, a criterion is defined in order to trigger the retraining procedure. The results obtained are compared to a nearest-neighbour predictive approach that achieves acceptable predictive performance and operates on a sliding window of data, therefore providing some level of adaptation. Also an analysis is made in order to find the time of day where the prediction error is smaller. Globally the retraining technique provides satisfactory maintenance of predictive performance although exhibiting alternating levels.","PeriodicalId":223520,"journal":{"name":"2011 IEEE 7th International Symposium on Intelligent Signal Processing","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124748464","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}
Levent Senyurek, Köksal Hocaoğlu, B. Sezer, O. Urhan
{"title":"Monitoring workers through wearable transceivers for improving work safety","authors":"Levent Senyurek, Köksal Hocaoğlu, B. Sezer, O. Urhan","doi":"10.1109/WISP.2011.6051699","DOIUrl":"https://doi.org/10.1109/WISP.2011.6051699","url":null,"abstract":"In this paper we present a wireless monitoring system for increasing work safety of people working alone. The main component of the system is a wearable transceiver including movement sensors, the so called GALILE device. GALILE detects potential emergency situations automatically and sends an alert to an emergency monitoring center. The worker carrying GALILE is also given the option to trigger an alarm by pressing a button placed on the device. For wireless communication, ZigBee standards are considered. A Zigbee network consisting of several routers and a gateway are collecting GALILE data and forwarding these data to the security center, where it is visualized through an application software providing a visual interface. The system also gives vital information about the location of the worker in emergency.","PeriodicalId":223520,"journal":{"name":"2011 IEEE 7th International Symposium on Intelligent Signal Processing","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130109110","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}
Raquel Gutierrez, J. J. Garcia, J. C. Garcia, L. Marnane, D. Gualda, Samuel Fernandez, Enrique García
{"title":"Activity monitoring and emergency warning with location information of the user","authors":"Raquel Gutierrez, J. J. Garcia, J. C. Garcia, L. Marnane, D. Gualda, Samuel Fernandez, Enrique García","doi":"10.1109/WISP.2011.6051700","DOIUrl":"https://doi.org/10.1109/WISP.2011.6051700","url":null,"abstract":"Recent advances in communications technologies and embedded systems have allowed the development of remote health monitoring systems. There are different approaches depending on the available measurements and the communication system used. In this paper an activity monitoring system is proposed in order to detect falls and/or faints of the user. The feature that distinguishes this system from other activity monitoring systems is the ability of auto-localization in both outdoor and indoor environments as well as the ability to automatically generate alarms to alert the medical personnel if there is any emergency situation.","PeriodicalId":223520,"journal":{"name":"2011 IEEE 7th International Symposium on Intelligent Signal Processing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131203958","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":"Experimental analyses of mutual shadowing effect for multiple target tracking by UWB radar","authors":"D. Kocur, J. Rovnáková, D. Urdzik","doi":"10.1109/WISP.2011.6051690","DOIUrl":"https://doi.org/10.1109/WISP.2011.6051690","url":null,"abstract":"Ultra wideband (UWB) radars have appeared as the suitable technology for detection and tracking of moving persons in critical situations and environments. The experimental results of handheld UWB radar application for multiple moving persons tracking have shown that for such scenarios the target located nearby the radar antennas is very often visible only. The other targets can be also detected but with less reliability than that of the target located the most closely to the radar antennas. In this paper, we will outline an origin of this effect as the impact of the mutual shadowing of targets at the multiple persons tracking scenario. This explanation will be confirmed by the experimental measurements.","PeriodicalId":223520,"journal":{"name":"2011 IEEE 7th International Symposium on Intelligent Signal Processing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122692677","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}
Samuel Fernandez, D. Gualda, J. García, J. J. García, J. Ureña, Raquel Gutierrez
{"title":"Indoor location system based on ZigBee devices and Metric Description Graphs","authors":"Samuel Fernandez, D. Gualda, J. García, J. J. García, J. Ureña, Raquel Gutierrez","doi":"10.1109/WISP.2011.6051706","DOIUrl":"https://doi.org/10.1109/WISP.2011.6051706","url":null,"abstract":"This paper proposes a way to improve the position estimates in an indoor location systems (ILS) based on readings from the power levels (RSSI) of an ad hoc ZigBee network. A mobile object, also equipped with a ZigBee device, can be located, positioned, and tracked by the system. The initial estimate of the mobile node position is extracted from IC devices from Texas Instruments, equipped with a specific hardware module for this function called Location Engine; it computes its position from RSSI readings of the signals coming from a set of reference beacons. Positioning of the blind nodes is enhanced by a post-filtering of the initial estimates by adjusting them into a Metric Description Graph (MDG) of the building, which includes information on distances and connectivity among the various enclosures of the coverage area of the ILS. The system has been experimentally verified in localization tasks of pedestrians in indoor environments.","PeriodicalId":223520,"journal":{"name":"2011 IEEE 7th International Symposium on Intelligent Signal Processing","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121454301","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":"Design of a sensor network based security system","authors":"G. Vakulya, G. Simon","doi":"10.1109/WISP.2011.6051721","DOIUrl":"https://doi.org/10.1109/WISP.2011.6051721","url":null,"abstract":"In this paper a wireless distributed building safety and security framework will be introduced. The main design goals of the system are completely distributed operation, flexibility, robustness, fast response time, and energy efficiency. The framework uses low duty cycle TDMA-based communication scheme, where the scheduling is the result of optimization, based on network discovery measurements. The hardware and software architecture of a prototype system is introduced.","PeriodicalId":223520,"journal":{"name":"2011 IEEE 7th International Symposium on Intelligent Signal Processing","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121124588","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}
Abdelkader Bellarbi, S. Benbelkacem, N. Zenati-Henda, M. Belhocine
{"title":"Hand gesture interaction using color-based method for tabletop interfaces","authors":"Abdelkader Bellarbi, S. Benbelkacem, N. Zenati-Henda, M. Belhocine","doi":"10.1109/WISP.2011.6051717","DOIUrl":"https://doi.org/10.1109/WISP.2011.6051717","url":null,"abstract":"In this paper, a hand gesture recognition method based on color marker detection is presented, In this case, we have used four types of colored markers (red, blue, yellow and green) mounted on the two hands. With this posture the user can perform different gestures as zoom, move, draw, and write on a virtual keyboard. This implemented system provides more flexible, natural and intuitive interaction possibilities, and also offers an economic and practical way of interaction.","PeriodicalId":223520,"journal":{"name":"2011 IEEE 7th International Symposium on Intelligent Signal Processing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133264498","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 the use of NMF for onset detection in poliphonic piano music","authors":"G. Costantini, M. Todisco, G. Saggio, R. Perfetti","doi":"10.1109/WISP.2011.6051698","DOIUrl":"https://doi.org/10.1109/WISP.2011.6051698","url":null,"abstract":"Recently the use of non-negative matrix factorization (NMF) for music onset detection has been proposed. In this paper we present the results of an experimental evaluation of NMF for onset detection of piano music. The test results, concerning a publicly available dataset of piano music, show a good performance of NMF, almost invariant from the factorization rank. However, better results have been obtained using simplified onset detection techniques, with lower computational complexity of implementation.","PeriodicalId":223520,"journal":{"name":"2011 IEEE 7th International Symposium on Intelligent Signal Processing","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117295759","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":"Adaptive-rate inductive impedance based coin validation","authors":"O. Martens, R. Land, A. Gavrijaseva, A. Molder","doi":"10.1109/WISP.2011.6051712","DOIUrl":"https://doi.org/10.1109/WISP.2011.6051712","url":null,"abstract":"Electro-magnetic (eddy current-based) sensors are widely used in vending and other coin machines, as electrical conductivity (sometimes measured on various frequencies, for multi-component metallic coins) is a significant distinctive physical property of the coin. Idea of current research is to develop precise and high-speed recognition and then validation of the coins to be realized at very reasonable cost of the hardware, using solely inductive sensors (eg simple coils). Precise measurement of the complex impedance of sensors is needed at multiple measurement frequencies simultaneously. Such approach needs either powerful processor and wideband precise analogue interface, or alternatively smart signal processing algorithms to be implemented on low-cost low-power signal processing platforms (preferably, realized as one-chip solutions). In current paper the following approaches has been proposed and evaluated, for improved and “smarter” signal processing, for reduced complexity: 1) using of samples of the signals with (at least) two (\"sparse\" and \"dense\") rates, while dense samples of signals (and sampled base-functions, for Fourier and similar transforms) are used only in the region, where coin is detected and preliminarily recognized “by sparse processing”, so reducing significantly the computational complexity of Fourier transform, for finding complex impedance on frequencies under interest; 2) also, the number of frequencies, is increased for precise validation region (e.g., from 1 to 4, in given examples). Estimation algorithm to find the “right” time instance, for “dense snapshot region” has been proposed, to make the “dense” region of processing as short as possible. Results of the investigation, based on real-life data are presented. Also further ideas for even more efficient smart signal processing for given applications are introduced.","PeriodicalId":223520,"journal":{"name":"2011 IEEE 7th International Symposium on Intelligent Signal Processing","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123773737","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}