Pub Date : 2017-07-01DOI: 10.1109/QIR.2017.8168480
J. Muliadi, Rizki Langit, B. Kusumoputro
This article proposes a practical new method to obtain the moment of inertia of UAV, named ARES. The ARES method simultaneously determined all the elements of UAV's Tensor of Inertia, i.e. the moments and the products of inertia through algebraic solving. The ARES method directly uses the UAV Flight Data to accommodate accuracy issues of modeling such as vehicle's geometrical imperfection; manufacturing defect, any non-symmetrical due component placement, etc. This proposed method was applicable for various purposes of UAV modeling e.g. flight control design, flight dynamics analysis, etc. Conventionally, UAV moments of inertia were estimated by tabulating, CAD-based, or pendulum method. Since these existing methods were constrained by the accuracy and practical issues, we develop the ARES method which using the UAV's flight data to resolve both issues. After undergone appropriate mathematical strategies, the ARES produce a linear construction for algebraic solving technique. The implementation the proposed method in the quadrotor flight data showing that ARES are successfully measured the asymmetrical terms which important for nonlinear controlling, that previously neglected by the conventional methods. Thus, the ARES estimates the UAV Tensor of Inertia in holistic, sophisticated and practical fashion.
{"title":"Estimating the UAV moments of inertia directly from its flight data","authors":"J. Muliadi, Rizki Langit, B. Kusumoputro","doi":"10.1109/QIR.2017.8168480","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168480","url":null,"abstract":"This article proposes a practical new method to obtain the moment of inertia of UAV, named ARES. The ARES method simultaneously determined all the elements of UAV's Tensor of Inertia, i.e. the moments and the products of inertia through algebraic solving. The ARES method directly uses the UAV Flight Data to accommodate accuracy issues of modeling such as vehicle's geometrical imperfection; manufacturing defect, any non-symmetrical due component placement, etc. This proposed method was applicable for various purposes of UAV modeling e.g. flight control design, flight dynamics analysis, etc. Conventionally, UAV moments of inertia were estimated by tabulating, CAD-based, or pendulum method. Since these existing methods were constrained by the accuracy and practical issues, we develop the ARES method which using the UAV's flight data to resolve both issues. After undergone appropriate mathematical strategies, the ARES produce a linear construction for algebraic solving technique. The implementation the proposed method in the quadrotor flight data showing that ARES are successfully measured the asymmetrical terms which important for nonlinear controlling, that previously neglected by the conventional methods. Thus, the ARES estimates the UAV Tensor of Inertia in holistic, sophisticated and practical fashion.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130282955","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 : 2017-07-01DOI: 10.1109/QIR.2017.8168507
Yusuf Lestanto, Aries Subiantoro, F. Yusivar
Vehicle dynamics have very complex characteristic and nonlinear behaviour. Vehicle dynamics are decomposed of many internal and external components which influence vehicle stability. External components come from environment such as wind forces, surface coarse of road, lane bend or sudden maneuver, which will change the value of vehicle stability parameters, i.e. yaw rate and sideslip. Both are influenced by the longitudinal velocity change and are difficult to be measured by installed sensors in vehicle. For driving convenience and high safety performance, the vehicle stability parameters must be controlled. Researches and experiments directly on the vehicle bring quite expensive cost and huge time consuming. Therefore, before doing experiments to the real vehicle, simulation is taken. Simulation needs model of vehicle dynamics that are approaching real vehicle dynamics. In this paper, instead of using simple vehicle model, the replication of the vehicle dynamics has been taken from CarSim multi-degree of freedom vehicle model. CarSim's vehicle model C Class Hatchback Sprungmass 2012 is used in this simulation. All vehicle parameters are already provided by CarSim. Vehicle model run along defined part of vehicle track of Universitas Indonesia. At certain bend lane, the obtained data consists of steering angle, longitudinal forces to all four wheels, yaw rate and side slip angle. Two-stage Least Square method has been applied to those data in order to estimate vehicle dynamics. The estimated model was validated upon another data. The result shows that the estimated vehicle model could represent in approaching real vehicle dynamics. The estimated model has perfect controllable and observable characteristic. The model is stable and its eigenvalues is inside unit circle.
{"title":"Two-stage least square method for model identification of vehicle motion","authors":"Yusuf Lestanto, Aries Subiantoro, F. Yusivar","doi":"10.1109/QIR.2017.8168507","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168507","url":null,"abstract":"Vehicle dynamics have very complex characteristic and nonlinear behaviour. Vehicle dynamics are decomposed of many internal and external components which influence vehicle stability. External components come from environment such as wind forces, surface coarse of road, lane bend or sudden maneuver, which will change the value of vehicle stability parameters, i.e. yaw rate and sideslip. Both are influenced by the longitudinal velocity change and are difficult to be measured by installed sensors in vehicle. For driving convenience and high safety performance, the vehicle stability parameters must be controlled. Researches and experiments directly on the vehicle bring quite expensive cost and huge time consuming. Therefore, before doing experiments to the real vehicle, simulation is taken. Simulation needs model of vehicle dynamics that are approaching real vehicle dynamics. In this paper, instead of using simple vehicle model, the replication of the vehicle dynamics has been taken from CarSim multi-degree of freedom vehicle model. CarSim's vehicle model C Class Hatchback Sprungmass 2012 is used in this simulation. All vehicle parameters are already provided by CarSim. Vehicle model run along defined part of vehicle track of Universitas Indonesia. At certain bend lane, the obtained data consists of steering angle, longitudinal forces to all four wheels, yaw rate and side slip angle. Two-stage Least Square method has been applied to those data in order to estimate vehicle dynamics. The estimated model was validated upon another data. The result shows that the estimated vehicle model could represent in approaching real vehicle dynamics. The estimated model has perfect controllable and observable characteristic. The model is stable and its eigenvalues is inside unit circle.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133359020","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 : 2017-07-01DOI: 10.1109/QIR.2017.8168526
Iswan, I. Garniwa
This paper proposes an approach for development of electrical system. The proposed approach is combination of principal component analysis (PCA) and cluster analysis. This research based on relevant data of total population, gross domestic regional product (GDRP), GDRP of industry, GDRP of business, electric power each customer and energy used for each sector. This development profile is set up to show the condition of electrical system of each region, that will be used to support policy development electrical system of spatial development in the future. This paper considers 24 regions in South Sulawesi province as development center points and use principal component analysis (PCA) to assess the regional profile for development. Cluster analysis is used to group these region into clusters according to the new variable produced PCA. The general planning of electrical system of South Sulawesi province can provide support for policy making of electrical system development. The future will include add on research several variables.
{"title":"Principal component analysis and cluster analysis for development of electrical system","authors":"Iswan, I. Garniwa","doi":"10.1109/QIR.2017.8168526","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168526","url":null,"abstract":"This paper proposes an approach for development of electrical system. The proposed approach is combination of principal component analysis (PCA) and cluster analysis. This research based on relevant data of total population, gross domestic regional product (GDRP), GDRP of industry, GDRP of business, electric power each customer and energy used for each sector. This development profile is set up to show the condition of electrical system of each region, that will be used to support policy development electrical system of spatial development in the future. This paper considers 24 regions in South Sulawesi province as development center points and use principal component analysis (PCA) to assess the regional profile for development. Cluster analysis is used to group these region into clusters according to the new variable produced PCA. The general planning of electrical system of South Sulawesi province can provide support for policy making of electrical system development. The future will include add on research several variables.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131713141","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 : 2017-07-01DOI: 10.1109/QIR.2017.8168456
A. Munir, Habibur Muhaimin, M. S. Arifianto, Chairunnisa, M. R. Effendi, A. B. Suksmono
This paper deals with the design and implementation of wideband bandpass filter (BPF) composed of planar inverted-F shaped. The filter is intended to have working bandwidth more than 1GHz at S-band frequency for radar application. The choice of inverted-F shape is due to the ability to provide flexibility characteristics in impedance matching and working bandwidth. Prior hardware realization and measurement, the performance of filter is numerically investigated to obtain the optimum design. The prototype is then realized by constructing 2 identical elements of planar inverted-F shaped which every single element is etched on a 1.6mm thick flame retardant (FR) glass-reinforced epoxy dielectric substrate with the dimension of 24mm in length and 33mm in width. From the measurement, the realized filter shows a good agreement in frequency responses comparable to the simulated result with minimum insertion loss of 1.17dB within the passband area and 10dB less of return loss in the frequency range from 1.92GHz to 3.21GHz.
{"title":"Wideband BPF composed of planar inverted-F shaped for S-band frequency application","authors":"A. Munir, Habibur Muhaimin, M. S. Arifianto, Chairunnisa, M. R. Effendi, A. B. Suksmono","doi":"10.1109/QIR.2017.8168456","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168456","url":null,"abstract":"This paper deals with the design and implementation of wideband bandpass filter (BPF) composed of planar inverted-F shaped. The filter is intended to have working bandwidth more than 1GHz at S-band frequency for radar application. The choice of inverted-F shape is due to the ability to provide flexibility characteristics in impedance matching and working bandwidth. Prior hardware realization and measurement, the performance of filter is numerically investigated to obtain the optimum design. The prototype is then realized by constructing 2 identical elements of planar inverted-F shaped which every single element is etched on a 1.6mm thick flame retardant (FR) glass-reinforced epoxy dielectric substrate with the dimension of 24mm in length and 33mm in width. From the measurement, the realized filter shows a good agreement in frequency responses comparable to the simulated result with minimum insertion loss of 1.17dB within the passband area and 10dB less of return loss in the frequency range from 1.92GHz to 3.21GHz.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"197 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133003007","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 : 2017-07-01DOI: 10.1109/QIR.2017.8168487
Dea Saka Kurnia Putra, M. Sadikin, Susila Windarta
Nowadays, mobile banking becomes a popular tool which consumers can conduct financial transactions such as shopping, monitoring accounts balance, transferring funds and other payments. Consumers dependency on mobile needs, make people take a little bit more interest in mobile banking. The use of the one-time password which is sent to the user mobile phone by short message service (SMS) is a vulnerability which we want to solve with proposing a new scheme called S-Mbank. We replace the authentication using the one-time password with the contactless smart card to prevent attackers to use the unencrypted message which is sent to the user's mobile phone. Moreover, it deals vulnerability of spoofer to send an SMS pretending as a bank's server. The contactless smart card is proposed because of its flexibility and security which easier to bring in our wallet than the common passcode generators. The replacement of SMS-based authentication with contactless smart card removes the vulnerability of unauthorized users to act as a legitimate user to exploit the mobile banking user's account. Besides that, we use public-private key pair and PIN to provide two factors authentication and mutual authentication. We use signcryption scheme to provide the efficiency of the computation. Pair based text authentication is also proposed for the login process as a solution to shoulder-surfing attack. We use Scyther tool to analyze the security of authentication protocol in S-Mbank scheme. From the proposed scheme, we are able to provide more security protection for mobile banking service.
{"title":"S-Mbank: Secure mobile banking authentication scheme using signcryption, pair based text authentication, and contactless smart card","authors":"Dea Saka Kurnia Putra, M. Sadikin, Susila Windarta","doi":"10.1109/QIR.2017.8168487","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168487","url":null,"abstract":"Nowadays, mobile banking becomes a popular tool which consumers can conduct financial transactions such as shopping, monitoring accounts balance, transferring funds and other payments. Consumers dependency on mobile needs, make people take a little bit more interest in mobile banking. The use of the one-time password which is sent to the user mobile phone by short message service (SMS) is a vulnerability which we want to solve with proposing a new scheme called S-Mbank. We replace the authentication using the one-time password with the contactless smart card to prevent attackers to use the unencrypted message which is sent to the user's mobile phone. Moreover, it deals vulnerability of spoofer to send an SMS pretending as a bank's server. The contactless smart card is proposed because of its flexibility and security which easier to bring in our wallet than the common passcode generators. The replacement of SMS-based authentication with contactless smart card removes the vulnerability of unauthorized users to act as a legitimate user to exploit the mobile banking user's account. Besides that, we use public-private key pair and PIN to provide two factors authentication and mutual authentication. We use signcryption scheme to provide the efficiency of the computation. Pair based text authentication is also proposed for the login process as a solution to shoulder-surfing attack. We use Scyther tool to analyze the security of authentication protocol in S-Mbank scheme. From the proposed scheme, we are able to provide more security protection for mobile banking service.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128740317","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 : 2017-07-01DOI: 10.1109/QIR.2017.8168488
A. A. P. Ratna, Randy Sanjaya, Tomi Wirianata, Prima Dewi Purnamasari
Assessment is an important step in the learning process in which the assessor evaluates students' level of understanding. One model of assessment is essay, which may cause problems in scoring objectivity and performance drop of human body when grading many essays. To ease essay grading and resolve those problems, a system that can assess documents according to its contexts is needed. From this concern, we developed a Java-based system for grading essays in Indonesian language using a more efficient and optimal algorithm. This algorithm consisted of 4 stages. The first stage is Latent Semantic Analysis (LSA), which is used to obtain and conclude the contextual relation of words meaning in a text. The second stage uses Single Value Decomposition (SVD) to obtain scatter variance from the relations. SVD identifies where variances appear at most, therefore is enabled to find the best approach to the original data using reduced dimensions. The third stage is Latent Semantic Indexing (LSI) which is an indexing and retrieval method to identifies patterns in relation between terms and concepts contained in unstructured text collection and results with a vector representing the text. The last stage is Cosine Similarity Measurement (CSM) to obtain similarity value from the text and answer document. To resolve problems stemmed from grammar and vocabulary, in this work we propose an auto-correction technique to check a word from word library for equalization of word with same or no specific meaning. Then, Jaro-Winkler distance algorithm is used to check word errors caused by accident when typing. With the distance, we can determine whether two strings of word are similar. This is extremely important when scanning text with typos, as it will affect the result from LSA. Using this system, the value obtained is similar to the value obtained from human rater. With word library consisting of 97 words for synonym check and 204 function words, the resulting accuracy is 85.246% ± 13.129.
{"title":"Word level auto-correction for latent semantic analysis based essay grading system","authors":"A. A. P. Ratna, Randy Sanjaya, Tomi Wirianata, Prima Dewi Purnamasari","doi":"10.1109/QIR.2017.8168488","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168488","url":null,"abstract":"Assessment is an important step in the learning process in which the assessor evaluates students' level of understanding. One model of assessment is essay, which may cause problems in scoring objectivity and performance drop of human body when grading many essays. To ease essay grading and resolve those problems, a system that can assess documents according to its contexts is needed. From this concern, we developed a Java-based system for grading essays in Indonesian language using a more efficient and optimal algorithm. This algorithm consisted of 4 stages. The first stage is Latent Semantic Analysis (LSA), which is used to obtain and conclude the contextual relation of words meaning in a text. The second stage uses Single Value Decomposition (SVD) to obtain scatter variance from the relations. SVD identifies where variances appear at most, therefore is enabled to find the best approach to the original data using reduced dimensions. The third stage is Latent Semantic Indexing (LSI) which is an indexing and retrieval method to identifies patterns in relation between terms and concepts contained in unstructured text collection and results with a vector representing the text. The last stage is Cosine Similarity Measurement (CSM) to obtain similarity value from the text and answer document. To resolve problems stemmed from grammar and vocabulary, in this work we propose an auto-correction technique to check a word from word library for equalization of word with same or no specific meaning. Then, Jaro-Winkler distance algorithm is used to check word errors caused by accident when typing. With the distance, we can determine whether two strings of word are similar. This is extremely important when scanning text with typos, as it will affect the result from LSA. Using this system, the value obtained is similar to the value obtained from human rater. With word library consisting of 97 words for synonym check and 204 function words, the resulting accuracy is 85.246% ± 13.129.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130056356","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 : 2017-07-01DOI: 10.1109/QIR.2017.8168451
A. Narottama, A. Sapteka
In this paper, we report the simulation of high doping nanoscale heterojunction diode, particularly Si1−xGex/Si p-n diode, using Cogenda Visual TCAD. In order to gain knowledge on electrical properties of this diode, we exhaustively simulate the effect of Ge mole fraction in SiGe material on current, voltage and electric field characteristics. The simulation covers Ge mole fraction of 0.2 to 0.7 in SiGe material as acceptor and Si material as donor. Both acceptor and donor have concentrations of 1020 per cm3 and areas of 10 × 10 nm2. Under forward bias voltage, higher Ge mole fraction will produce higher current. This phenomenon happens due to lower energy band gap at higher Ge mole fraction condition. Besides that, higher Ge mole fraction has lower energy difference between P side and N side of diode. According to the simulation result, Si0.8Ge0.2 has energy band gap about 0.8 eV, meanwhile Si0.3Ge0.7 has energy band gap about 0.5 eV. Lower energy band gap causes more electrons have enough energy to cross the junction. Meanwhile under reverse bias voltage, high doping nanoscale diode will produce infinitesimal current. At the junction, high doping nanoscale Si1−xGex/Si P-N diode also has lower electric field (measured at the center of diode) at higher Ge mole fraction. Under reverse bias voltage of −2 V, Si0.3Ge0.7 has maximum electric field about 5.89 × 106 V/m, meanwhile Si0.8Ge0.2 has maximum electric field about 6.17 × 106 V/m. We predict that Ge mole fraction has inversely proportional effect to the maximum electric field value. Therefore, we concluded that Ge mole fraction affects current, voltage and electric field characteristics of high doping nanoscale Si1−xGex/Si P-N diode.
{"title":"Effect of Ge mole fraction on current, voltage and electric field characteristics of high doping nanoscale Si1−xGex/Si p-n diode","authors":"A. Narottama, A. Sapteka","doi":"10.1109/QIR.2017.8168451","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168451","url":null,"abstract":"In this paper, we report the simulation of high doping nanoscale heterojunction diode, particularly Si<inf>1−x</inf>Ge<inf>x</inf>/Si p-n diode, using Cogenda Visual TCAD. In order to gain knowledge on electrical properties of this diode, we exhaustively simulate the effect of Ge mole fraction in SiGe material on current, voltage and electric field characteristics. The simulation covers Ge mole fraction of 0.2 to 0.7 in SiGe material as acceptor and Si material as donor. Both acceptor and donor have concentrations of 10<sup>20</sup> per cm<sup>3</sup> and areas of 10 × 10 nm<sup>2</sup>. Under forward bias voltage, higher Ge mole fraction will produce higher current. This phenomenon happens due to lower energy band gap at higher Ge mole fraction condition. Besides that, higher Ge mole fraction has lower energy difference between P side and N side of diode. According to the simulation result, Si<inf>0.8</inf>Ge<inf>0.2</inf> has energy band gap about 0.8 eV, meanwhile Si0.3Ge0.7 has energy band gap about 0.5 eV. Lower energy band gap causes more electrons have enough energy to cross the junction. Meanwhile under reverse bias voltage, high doping nanoscale diode will produce infinitesimal current. At the junction, high doping nanoscale Si<inf>1−x</inf>Ge<inf>x</inf>/Si P-N diode also has lower electric field (measured at the center of diode) at higher Ge mole fraction. Under reverse bias voltage of −2 V, Si<inf>0.3</inf>Ge<inf>0.7</inf> has maximum electric field about 5.89 × 10<sup>6</sup> V/m, meanwhile Si<inf>0.8</inf>Ge<inf>0.2</inf> has maximum electric field about 6.17 × 10<sup>6</sup> V/m. We predict that Ge mole fraction has inversely proportional effect to the maximum electric field value. Therefore, we concluded that Ge mole fraction affects current, voltage and electric field characteristics of high doping nanoscale Si<inf>1−x</inf>Ge<inf>x</inf>/Si P-N diode.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133460567","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 : 2017-07-01DOI: 10.1109/QIR.2017.8168500
Y. Ohira, Yoyok Dwi Setyo Pambudi, C. Hudaya
The Indonesian government (GoI) applies the cost recovery concept in the upstream sector of the oil and gas resources. It postulates the expenses spent by the contractor during exploration and exploitation activities will be settled through production sharing scheme. The cost includes the compensation for the production equipment and utilities, not to mention the power generator. When the oil-and-gas exploitation declines or even shut-in due to technical and economic reasons, some of them become idle assets. In this study, we investigate the utilization of the idle 2 × 750 kVA gas engine power generators for a new gas facilities project in different region. As the newly facilities require a smaller power supply (2 × 350 kVA) than the power plant capacity, the excess power is proposed to be sold to the electric utility. Here, an economic analysis is carried out to compare between purchasing new power generators and the utilization of the idle ones. The result shows that the utilization of idle asset provides economic benefit both for the GoI and the contractor. This scheme will solve the electricity need for own use and the excess power may be transferred to the electric utility, realized by power purchase agreement.
{"title":"Utilization of idle power plant for own use and excess power in an oil-and-gas company","authors":"Y. Ohira, Yoyok Dwi Setyo Pambudi, C. Hudaya","doi":"10.1109/QIR.2017.8168500","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168500","url":null,"abstract":"The Indonesian government (GoI) applies the cost recovery concept in the upstream sector of the oil and gas resources. It postulates the expenses spent by the contractor during exploration and exploitation activities will be settled through production sharing scheme. The cost includes the compensation for the production equipment and utilities, not to mention the power generator. When the oil-and-gas exploitation declines or even shut-in due to technical and economic reasons, some of them become idle assets. In this study, we investigate the utilization of the idle 2 × 750 kVA gas engine power generators for a new gas facilities project in different region. As the newly facilities require a smaller power supply (2 × 350 kVA) than the power plant capacity, the excess power is proposed to be sold to the electric utility. Here, an economic analysis is carried out to compare between purchasing new power generators and the utilization of the idle ones. The result shows that the utilization of idle asset provides economic benefit both for the GoI and the contractor. This scheme will solve the electricity need for own use and the excess power may be transferred to the electric utility, realized by power purchase agreement.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130639911","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 : 2017-07-01DOI: 10.1109/QIR.2017.8168493
Muhammad Fathur Rahman, S. Manjang, Z. Zainuddin
The authors proposed a method for measuring the water level in open channel which is accurate, low cost, and simple. Getting the accurate measurement in open channel is more difficult than in closed channel because there is an influence of external factors such as the formation of the wave, irregular channel structures and floating objects on the water surface. To resolve those problems, a new sensor device is proposed that can measure the water level accurately and simply. The device consists of a combination of JSN-SR04T ultrasonic sensors and iron pipe, it is developed by using ATMEGA328 microcontroller system. The device can measure the water level changes accurately because in a state of stationary and flat. The comparison result between measuring visually and JSN-SR04T ultrasonic sensor is included. This device can record the results of sensor measurements in every second into the SD-card for the purpose of further analysis.
{"title":"Water level monitoring using ultrasonic-pipe in open channel","authors":"Muhammad Fathur Rahman, S. Manjang, Z. Zainuddin","doi":"10.1109/QIR.2017.8168493","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168493","url":null,"abstract":"The authors proposed a method for measuring the water level in open channel which is accurate, low cost, and simple. Getting the accurate measurement in open channel is more difficult than in closed channel because there is an influence of external factors such as the formation of the wave, irregular channel structures and floating objects on the water surface. To resolve those problems, a new sensor device is proposed that can measure the water level accurately and simply. The device consists of a combination of JSN-SR04T ultrasonic sensors and iron pipe, it is developed by using ATMEGA328 microcontroller system. The device can measure the water level changes accurately because in a state of stationary and flat. The comparison result between measuring visually and JSN-SR04T ultrasonic sensor is included. This device can record the results of sensor measurements in every second into the SD-card for the purpose of further analysis.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"166 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133095048","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 : 2017-07-01DOI: 10.1109/QIR.2017.8168491
Astriany Noer, Z. Hasanuddin, Dewiani Djamaluddin
This paper presents an innovation in the implementation of RFID in terms of authentication and offline intelligent payment system in public transport, Bus Rapid Transit (BRT), for the academicians. The authentication is conducted using a contactless smart card as an e-ticket as well as an identity card. Contactless smart cards can be obtained through the registration process on the administrator to store user's identity in specific sectors and provide classified authentication key for the card. Passengers will make the payment on a device that has been previously installed on the BRT, called Contactless Payment Terminal (CPT). CPT consists of Raspberry Pi 3 Model B, MFRC522 and LCD Waveshare 3.5. CPT works without requiring server communication when conducting the transaction, but rather accessing the data stored in the contactless card. The optimum range for the CPT can identify the data on the contactless card is at a distance of 1 cm and 2 cm with a percentage of 100%, the percentage decreased by 86.67% at a distance of 3 cm. The fastest delay time is 0.1 s at a distance of 1 cm and the longest is 2.7 s at a distance of 3 cm. The designed system is also equipped with a website operated by an administrator to register a new user, to edit the user's identity, to top up the user's balances, and to check the transaction history.
{"title":"Implementation of RFID based raspberry Pi for user authentication and offline intelligent payment system","authors":"Astriany Noer, Z. Hasanuddin, Dewiani Djamaluddin","doi":"10.1109/QIR.2017.8168491","DOIUrl":"https://doi.org/10.1109/QIR.2017.8168491","url":null,"abstract":"This paper presents an innovation in the implementation of RFID in terms of authentication and offline intelligent payment system in public transport, Bus Rapid Transit (BRT), for the academicians. The authentication is conducted using a contactless smart card as an e-ticket as well as an identity card. Contactless smart cards can be obtained through the registration process on the administrator to store user's identity in specific sectors and provide classified authentication key for the card. Passengers will make the payment on a device that has been previously installed on the BRT, called Contactless Payment Terminal (CPT). CPT consists of Raspberry Pi 3 Model B, MFRC522 and LCD Waveshare 3.5. CPT works without requiring server communication when conducting the transaction, but rather accessing the data stored in the contactless card. The optimum range for the CPT can identify the data on the contactless card is at a distance of 1 cm and 2 cm with a percentage of 100%, the percentage decreased by 86.67% at a distance of 3 cm. The fastest delay time is 0.1 s at a distance of 1 cm and the longest is 2.7 s at a distance of 3 cm. The designed system is also equipped with a website operated by an administrator to register a new user, to edit the user's identity, to top up the user's balances, and to check the transaction history.","PeriodicalId":225743,"journal":{"name":"2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131416477","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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