Pub Date : 2020-09-16DOI: 10.1109/ET50336.2020.9238175
S. Lozanova, C. Roumenin
A silicon 2D multisensor measuring simultaneously and independently the in-plane components of the magnetic field is experimentally tested. The devise contains one central ohmic contact and symmetrically to it - two perpendicular to each other pair of ohmic contacts. The sensitivities of the two sensor channels in accordance with symmetry are equal, reaching $mathrm{S}=25 mathrm{V}/mathrm{AT}$ at $T=300 kappa$ and $mathrm{S}=119 mathrm{V}/mathrm{AT}$ at $T=77 mathrm{K}$. The channel cross-sensitivity does not exceed 5% as the internal noise is of the $1/f$ type.
{"title":"Silicon 2D Magnetic-field Multisensor","authors":"S. Lozanova, C. Roumenin","doi":"10.1109/ET50336.2020.9238175","DOIUrl":"https://doi.org/10.1109/ET50336.2020.9238175","url":null,"abstract":"A silicon 2D multisensor measuring simultaneously and independently the in-plane components of the magnetic field is experimentally tested. The devise contains one central ohmic contact and symmetrically to it - two perpendicular to each other pair of ohmic contacts. The sensitivities of the two sensor channels in accordance with symmetry are equal, reaching $mathrm{S}=25 mathrm{V}/mathrm{AT}$ at $T=300 kappa$ and $mathrm{S}=119 mathrm{V}/mathrm{AT}$ at $T=77 mathrm{K}$. The channel cross-sensitivity does not exceed 5% as the internal noise is of the $1/f$ type.","PeriodicalId":178356,"journal":{"name":"2020 XXIX International Scientific Conference Electronics (ET)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129677281","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 : 2020-09-16DOI: 10.1109/ET50336.2020.9238157
D. Badarov, G. Mihov
All-digital Phase Locked Loop is designed in this article. A combinational frequency multiplier is developed and tested to achieve completely integrated system using only one low frequency reference oscillator. Adaptive proportional-integral regulation is used to ensure high stability, low phase noise and fast synchronization in wide frequency range. The system is developed and tested on Spartan 3E FPGA by Xilinx.
本文设计了全数字锁相环。开发并测试了一种组合倍频器，以实现仅使用一个低频参考振荡器的完全集成系统。采用自适应比例积分调节，在宽频率范围内保证高稳定性、低相位噪声和快速同步。该系统在赛灵思公司的Spartan 3E FPGA上进行了开发和测试。
{"title":"All-Digital Phase Locked Loop with Single Reference Frequency Oscillator","authors":"D. Badarov, G. Mihov","doi":"10.1109/ET50336.2020.9238157","DOIUrl":"https://doi.org/10.1109/ET50336.2020.9238157","url":null,"abstract":"All-digital Phase Locked Loop is designed in this article. A combinational frequency multiplier is developed and tested to achieve completely integrated system using only one low frequency reference oscillator. Adaptive proportional-integral regulation is used to ensure high stability, low phase noise and fast synchronization in wide frequency range. The system is developed and tested on Spartan 3E FPGA by Xilinx.","PeriodicalId":178356,"journal":{"name":"2020 XXIX International Scientific Conference Electronics (ET)","volume":"2020 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117330043","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 : 2020-09-16DOI: 10.1109/ET50336.2020.9238266
D. Ginchev, S. Stavrev
In this paper we aim to offer a low budget simulator of the M1A2 Abrams battle tank for training and educational purposes. We have focused on modeling the battle tank fire controls, as well as a virtual representation of the tank. In addition, we use modern methods for calculating the external projectile ballistics. Furthermore, wind force and its effect on the trajectory of shell projectiles are simulated and studied. Finally, we have conducted several experiments and draw conclusions.
{"title":"A low-cost battle tank simulator using Unreal Engine 4 and open-hardware microcontrollers","authors":"D. Ginchev, S. Stavrev","doi":"10.1109/ET50336.2020.9238266","DOIUrl":"https://doi.org/10.1109/ET50336.2020.9238266","url":null,"abstract":"In this paper we aim to offer a low budget simulator of the M1A2 Abrams battle tank for training and educational purposes. We have focused on modeling the battle tank fire controls, as well as a virtual representation of the tank. In addition, we use modern methods for calculating the external projectile ballistics. Furthermore, wind force and its effect on the trajectory of shell projectiles are simulated and studied. Finally, we have conducted several experiments and draw conclusions.","PeriodicalId":178356,"journal":{"name":"2020 XXIX International Scientific Conference Electronics (ET)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123991403","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 : 2020-09-16DOI: 10.1109/ET50336.2020.9238247
I. Iliev, D. Badarov, S. Tabakov, Borislav Ganev, Ivan Kanev
Remote patient monitoring (RPM) is an out-of-hospital medical practice based on newest ICT achievements. The major advantages are related to the possibilities for longterm monitoring of the processes for treatment and recovery of patients in their natural living environment. This paper presents a very simple, cheap and easy for use technological solution (hardware) for registration of heart activity, allowing to overcome some obstacles to RPM of patients with cardiovascular diseases.
{"title":"Fully Analogue ECG Front-end Applicable in Remote Patient Monitoring","authors":"I. Iliev, D. Badarov, S. Tabakov, Borislav Ganev, Ivan Kanev","doi":"10.1109/ET50336.2020.9238247","DOIUrl":"https://doi.org/10.1109/ET50336.2020.9238247","url":null,"abstract":"Remote patient monitoring (RPM) is an out-of-hospital medical practice based on newest ICT achievements. The major advantages are related to the possibilities for longterm monitoring of the processes for treatment and recovery of patients in their natural living environment. This paper presents a very simple, cheap and easy for use technological solution (hardware) for registration of heart activity, allowing to overcome some obstacles to RPM of patients with cardiovascular diseases.","PeriodicalId":178356,"journal":{"name":"2020 XXIX International Scientific Conference Electronics (ET)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124235562","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 : 2020-09-16DOI: 10.1109/ET50336.2020.9238255
N. Hinov, V. Dimitrov, T. Hranov
The work presents an approach for transition of an analog control system of a dc-dc power electronic converter, in particular the resonant LLC converter, to digital control system, using embedded microcontroller to perform the calculations and formation of the control pulses of the device. The study is verified using software simulations and a hardware board evaluation studies.
{"title":"Digitization of control systems for power electronic converters","authors":"N. Hinov, V. Dimitrov, T. Hranov","doi":"10.1109/ET50336.2020.9238255","DOIUrl":"https://doi.org/10.1109/ET50336.2020.9238255","url":null,"abstract":"The work presents an approach for transition of an analog control system of a dc-dc power electronic converter, in particular the resonant LLC converter, to digital control system, using embedded microcontroller to perform the calculations and formation of the control pulses of the device. The study is verified using software simulations and a hardware board evaluation studies.","PeriodicalId":178356,"journal":{"name":"2020 XXIX International Scientific Conference Electronics (ET)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123143290","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 : 2020-09-16DOI: 10.1109/ET50336.2020.9238228
V. Rankovska, G. Goranov
The paper summarizes the mechanism of event servicing through interrupts in the embedded systems design - one of the most complex and abstract topics in microcontrollers and embedded systems disciplines. Some special features of Arduino IDE, relating interrupts, are given. It is also briefly presented how a smart home model is used as a suitable complex object to study microcontroller interrupts, among various hardware and software aspects of embedded system design and programming.
{"title":"Interrupts in Teaching Microcontrollers Using Arduino","authors":"V. Rankovska, G. Goranov","doi":"10.1109/ET50336.2020.9238228","DOIUrl":"https://doi.org/10.1109/ET50336.2020.9238228","url":null,"abstract":"The paper summarizes the mechanism of event servicing through interrupts in the embedded systems design - one of the most complex and abstract topics in microcontrollers and embedded systems disciplines. Some special features of Arduino IDE, relating interrupts, are given. It is also briefly presented how a smart home model is used as a suitable complex object to study microcontroller interrupts, among various hardware and software aspects of embedded system design and programming.","PeriodicalId":178356,"journal":{"name":"2020 XXIX International Scientific Conference Electronics (ET)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132503786","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 : 2020-09-16DOI: 10.1109/ET50336.2020.9238256
Svetoslav Dimitrov, D. Tokmakov
This paper proposes an extensible and flexible 4 layer network architecture for integrating data from heterogeneous wireless sensor networks with the open and private cloud structures. The proposed architecture has a number of advantages over the existing network architectures for WSN: integration of data from heterogeneous sensor nodes and providing a mechanism for their transmission to network cloud services; the ability to create geographically distributed WSNs over long distances covering different remote areas - cities, countries and continents.
{"title":"Integrating data from heterogeneous wireless sensor networks based on LoraWan and ZigBee sensor nodes","authors":"Svetoslav Dimitrov, D. Tokmakov","doi":"10.1109/ET50336.2020.9238256","DOIUrl":"https://doi.org/10.1109/ET50336.2020.9238256","url":null,"abstract":"This paper proposes an extensible and flexible 4 layer network architecture for integrating data from heterogeneous wireless sensor networks with the open and private cloud structures. The proposed architecture has a number of advantages over the existing network architectures for WSN: integration of data from heterogeneous sensor nodes and providing a mechanism for their transmission to network cloud services; the ability to create geographically distributed WSNs over long distances covering different remote areas - cities, countries and continents.","PeriodicalId":178356,"journal":{"name":"2020 XXIX International Scientific Conference Electronics (ET)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126228969","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 : 2020-09-16DOI: 10.1109/ET50336.2020.9238151
S. Verslype, Laure Buysse, J. Peuteman, D. Pissoort, J. Boydens
This paper proposes a setup to provide remote laboratory courses on embedded systems and mechatronics applied in engineering education. A hardware setup, which allows students to test and verify their design on a real physical setup from a remote location, is presented. Special attention is given to live feedback and measurements. The accompanying software setup is discussed and presented. The software setup addresses multiple aspects such as manipulation of the remote setup, setup reservation, live visual feedback and security.
{"title":"Remote laboratory setup for software verification in an embedded systems and mechatronics course","authors":"S. Verslype, Laure Buysse, J. Peuteman, D. Pissoort, J. Boydens","doi":"10.1109/ET50336.2020.9238151","DOIUrl":"https://doi.org/10.1109/ET50336.2020.9238151","url":null,"abstract":"This paper proposes a setup to provide remote laboratory courses on embedded systems and mechatronics applied in engineering education. A hardware setup, which allows students to test and verify their design on a real physical setup from a remote location, is presented. Special attention is given to live feedback and measurements. The accompanying software setup is discussed and presented. The software setup addresses multiple aspects such as manipulation of the remote setup, setup reservation, live visual feedback and security.","PeriodicalId":178356,"journal":{"name":"2020 XXIX International Scientific Conference Electronics (ET)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128702508","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 : 2020-09-16DOI: 10.1109/ET50336.2020.9238178
N. Christoff, N. Bardarov, A. Manolova, Krasimir Tonchev
The identification of trees is becoming increasingly important for the protection of plant species and the regulation of timber trade worldwide. Anatomical features such as vessels, fibers, parenchyma and rays play a significant role in the identification of individual trees. The unique cell structure of each of the hardwood species varies widely among the intraspecific species and describes their characteristic features. In this article we propose a method for detection of geometric features in tree samples, such as vessels, through morphological analysis and segmentation.
{"title":"Feature Extraction and Automatic Detection of Wooden Vessels from Raster Images","authors":"N. Christoff, N. Bardarov, A. Manolova, Krasimir Tonchev","doi":"10.1109/ET50336.2020.9238178","DOIUrl":"https://doi.org/10.1109/ET50336.2020.9238178","url":null,"abstract":"The identification of trees is becoming increasingly important for the protection of plant species and the regulation of timber trade worldwide. Anatomical features such as vessels, fibers, parenchyma and rays play a significant role in the identification of individual trees. The unique cell structure of each of the hardwood species varies widely among the intraspecific species and describes their characteristic features. In this article we propose a method for detection of geometric features in tree samples, such as vessels, through morphological analysis and segmentation.","PeriodicalId":178356,"journal":{"name":"2020 XXIX International Scientific Conference Electronics (ET)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123794763","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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