Pub Date : 2019-07-01DOI: 10.1109/QIR.2019.8897845
A. A. P. Ratna, Naiza Astri Wulandari, Aaliyah Kaltsum, Ihsan Ibrahim, Prima Dewi Purnamasari
The Automatic Short Answer Grading (Simple-O) has been created for grading short answer with Bahasa Indonesia using K-Means and Latent Semantic Analysis (LSA) method. In this experiment, the text document feature will be extracted using Term Frequency-Inverse Document Frequency (TF-IDF) and then classified using K-Means. From the experiment, 149 documents are expected to be clustered into five classes. The result of the clustering using K-Means is 100% matched with clustering using human rater. The result of grading with LSA is 74%.
{"title":"Answer Categorization Method Using K-Means for Indonesian Language Automatic Short Answer Grading System Based on Latent Semantic Analysis","authors":"A. A. P. Ratna, Naiza Astri Wulandari, Aaliyah Kaltsum, Ihsan Ibrahim, Prima Dewi Purnamasari","doi":"10.1109/QIR.2019.8897845","DOIUrl":"https://doi.org/10.1109/QIR.2019.8897845","url":null,"abstract":"The Automatic Short Answer Grading (Simple-O) has been created for grading short answer with Bahasa Indonesia using K-Means and Latent Semantic Analysis (LSA) method. In this experiment, the text document feature will be extracted using Term Frequency-Inverse Document Frequency (TF-IDF) and then classified using K-Means. From the experiment, 149 documents are expected to be clustered into five classes. The result of the clustering using K-Means is 100% matched with clustering using human rater. The result of grading with LSA is 74%.","PeriodicalId":284463,"journal":{"name":"2019 16th International Conference on Quality in Research (QIR): International Symposium on Electrical and Computer Engineering","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133115964","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 : 2019-07-01DOI: 10.1109/QIR.2019.8898271
A. A. P. Ratna, Rashelia Radela Noviaindriani, Lea Santiar, Ihsan Ibrahim, Prima Dewi Purnamasari
This paper discusses about the development of an automatic essay grading system for Japanese short essay answer by applying the K-Means Clustering to group each question’s topic and Latent Semantic Analysis to make the assessment. The system is developed to help facilitate the examination of essay answers that are currently still being done manually. The development of the system itself is done by using Python programming language. The test scenarios were carried out by varying the types of hiragana and romaji input also the process of stopwords elimination. From the results obtained and the analysis carried out, the form or type of text input used and the use of parameter such as stopwords affect the accuracy of the assessment. The developed automatic essay grading system was able to obtain the highest accuracy rate of 89% by using input in the form of romaji letters and without the stopwords elimination process.
{"title":"K-Means Clustering for Answer Categorization on Latent Semantic Analysis Automatic Japanese Short Essay Grading System","authors":"A. A. P. Ratna, Rashelia Radela Noviaindriani, Lea Santiar, Ihsan Ibrahim, Prima Dewi Purnamasari","doi":"10.1109/QIR.2019.8898271","DOIUrl":"https://doi.org/10.1109/QIR.2019.8898271","url":null,"abstract":"This paper discusses about the development of an automatic essay grading system for Japanese short essay answer by applying the K-Means Clustering to group each question’s topic and Latent Semantic Analysis to make the assessment. The system is developed to help facilitate the examination of essay answers that are currently still being done manually. The development of the system itself is done by using Python programming language. The test scenarios were carried out by varying the types of hiragana and romaji input also the process of stopwords elimination. From the results obtained and the analysis carried out, the form or type of text input used and the use of parameter such as stopwords affect the accuracy of the assessment. The developed automatic essay grading system was able to obtain the highest accuracy rate of 89% by using input in the form of romaji letters and without the stopwords elimination process.","PeriodicalId":284463,"journal":{"name":"2019 16th International Conference on Quality in Research (QIR): International Symposium on Electrical and Computer Engineering","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129081471","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 : 2019-07-01DOI: 10.1109/QIR.2019.8898259
Ratna Aisuwarya, Y. Hidayati
The low-cost dispenser has disadvantages such as unable to maintain the water temperature to remain stable. To brew hot drinks such as coffee and tea require a specific range of temperature of 90 – 96 °C. Several previous studies regarding automatic dispensers have discussed the existing problems; only there are still some drawbacks when controlling the temperature stability in the dispenser. Further development is needed to overcome these shortcomings. For that purpose, we proposed a dispenser that can maintain the stability of hot water temperature. This dispenser will make it easier for users to brew coffee and tea with the ideal water temperature and produce a stable temperature that produces a good quality drink. The designed system uses water-resistant temperature sensor. Voltage control is applied to the heating element using the Ziegler-Nichols PID Tuning Method in order to control the temperature stability. Experimental results show that the system can maintain the temperature of hot water in the dispenser to keep it stable with a range from 92.31 °C to 92.62 °C, while the system without controller unable to maintain the stability of hot water temperature because the hot water temperature reaches a maximum temperature of 95.62 °C exceeding the setpoint of 92 °C.
{"title":"Implementation of Ziegler-Nichols PID Tuning Method on Stabilizing Temperature of Hot-water Dispenser","authors":"Ratna Aisuwarya, Y. Hidayati","doi":"10.1109/QIR.2019.8898259","DOIUrl":"https://doi.org/10.1109/QIR.2019.8898259","url":null,"abstract":"The low-cost dispenser has disadvantages such as unable to maintain the water temperature to remain stable. To brew hot drinks such as coffee and tea require a specific range of temperature of 90 – 96 °C. Several previous studies regarding automatic dispensers have discussed the existing problems; only there are still some drawbacks when controlling the temperature stability in the dispenser. Further development is needed to overcome these shortcomings. For that purpose, we proposed a dispenser that can maintain the stability of hot water temperature. This dispenser will make it easier for users to brew coffee and tea with the ideal water temperature and produce a stable temperature that produces a good quality drink. The designed system uses water-resistant temperature sensor. Voltage control is applied to the heating element using the Ziegler-Nichols PID Tuning Method in order to control the temperature stability. Experimental results show that the system can maintain the temperature of hot water in the dispenser to keep it stable with a range from 92.31 °C to 92.62 °C, while the system without controller unable to maintain the stability of hot water temperature because the hot water temperature reaches a maximum temperature of 95.62 °C exceeding the setpoint of 92 °C.","PeriodicalId":284463,"journal":{"name":"2019 16th International Conference on Quality in Research (QIR): International Symposium on Electrical and Computer Engineering","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121877919","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 : 2019-07-01DOI: 10.1109/QIR.2019.8898260
A. Kusuma, M. Suryanegara
The upgrading and deployment of 5G technology in Indonesia requires conscientious planning to meet the traffic requirements as well as to identify the economic feasibility aspects of telecommunications operators. This research was conducted to estimate the data needs in Indonesia, particularly in large cities with large data needs, and also to calculate the techno-economic aspects of deploying 5G networks in Indonesia from 2020 up to 2025. We choose the cities of Jakarta, Surabaya City, and Medan City as the main large cities in Indonesia. The modelling used a method to forecast the number of customers, the traffic needs, and the technology selected, and also simulated capital expenditures (CAPEXs) and operating expedintures (OPEXs) due to network necessity. Based upon the result, the Jakarta traffic demand forecast was 17.6 Gbps per km2; Surabaya City will require 7.8 Gbps per km2, and Medan City will need 6.8 Gbps per km2. With the highest demand, Jakarta will have a CAPEX of k$ 4200, OPEX of k$ 1050 per km2 to meet their needs using 4G LTE-A macro base stations. A CAPEX of k$ 152.4 and an OPEX of k$ 44.4 will also be required for the capital city of 5G mmW base stations. Surabaya City will have a CAPEX of k$ 1920 and an OPEX of k$ 480 to meet their highest demand for 4G LTE-A per km2 and a CAPEX of k$ 76.2 and an OPEX of k$ 22.2 for 5G mmW base stations per km2. Finally, Medan City will have a CAPEX of k$ 1680 and an OPEX of k$ 420 for the highest demand for 4G LTE-A per km2 and a CAPEX of k$ 76.2 and an OPEX of k$ 22.2 to meet highest demand for 5G mmW per km2.
{"title":"Upgrading Mobile Network to 5G: The Technoeconomic Analysis of Main Cities in Indonesia","authors":"A. Kusuma, M. Suryanegara","doi":"10.1109/QIR.2019.8898260","DOIUrl":"https://doi.org/10.1109/QIR.2019.8898260","url":null,"abstract":"The upgrading and deployment of 5G technology in Indonesia requires conscientious planning to meet the traffic requirements as well as to identify the economic feasibility aspects of telecommunications operators. This research was conducted to estimate the data needs in Indonesia, particularly in large cities with large data needs, and also to calculate the techno-economic aspects of deploying 5G networks in Indonesia from 2020 up to 2025. We choose the cities of Jakarta, Surabaya City, and Medan City as the main large cities in Indonesia. The modelling used a method to forecast the number of customers, the traffic needs, and the technology selected, and also simulated capital expenditures (CAPEXs) and operating expedintures (OPEXs) due to network necessity. Based upon the result, the Jakarta traffic demand forecast was 17.6 Gbps per km2; Surabaya City will require 7.8 Gbps per km2, and Medan City will need 6.8 Gbps per km2. With the highest demand, Jakarta will have a CAPEX of k$ 4200, OPEX of k$ 1050 per km2 to meet their needs using 4G LTE-A macro base stations. A CAPEX of k$ 152.4 and an OPEX of k$ 44.4 will also be required for the capital city of 5G mmW base stations. Surabaya City will have a CAPEX of k$ 1920 and an OPEX of k$ 480 to meet their highest demand for 4G LTE-A per km2 and a CAPEX of k$ 76.2 and an OPEX of k$ 22.2 for 5G mmW base stations per km2. Finally, Medan City will have a CAPEX of k$ 1680 and an OPEX of k$ 420 for the highest demand for 4G LTE-A per km2 and a CAPEX of k$ 76.2 and an OPEX of k$ 22.2 to meet highest demand for 5G mmW per km2.","PeriodicalId":284463,"journal":{"name":"2019 16th International Conference on Quality in Research (QIR): International Symposium on Electrical and Computer Engineering","volume":"220 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122522411","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 : 2019-07-01DOI: 10.1109/QIR.2019.8898289
M. R. Gumelar, R. W. Purnamaningsih
This paper proposes a design of an optical ring resonator based on GaN/sapphire waveguides for telecommunication links application using 1.55 μm wavelength. The ring resonator consists of a straight bus waveguide and ring waveguide separated by an air gap forming a directional coupler. The optimisation and analysis of the design were conducted using an FDTD method for TE mode with a centre wavelength of 1.55 μm. The numerical experiments were conducted for various ring radius and air gap. Results show the optimum ring radius for GaN ring resonator is 4 μm, and the optimum air gap is 40 nm.
{"title":"The Effects of Ring Radius and Coupling Gap on the Transmission Spectrum of GaN-Based Ring Resonator","authors":"M. R. Gumelar, R. W. Purnamaningsih","doi":"10.1109/QIR.2019.8898289","DOIUrl":"https://doi.org/10.1109/QIR.2019.8898289","url":null,"abstract":"This paper proposes a design of an optical ring resonator based on GaN/sapphire waveguides for telecommunication links application using 1.55 μm wavelength. The ring resonator consists of a straight bus waveguide and ring waveguide separated by an air gap forming a directional coupler. The optimisation and analysis of the design were conducted using an FDTD method for TE mode with a centre wavelength of 1.55 μm. The numerical experiments were conducted for various ring radius and air gap. Results show the optimum ring radius for GaN ring resonator is 4 μm, and the optimum air gap is 40 nm.","PeriodicalId":284463,"journal":{"name":"2019 16th International Conference on Quality in Research (QIR): International Symposium on Electrical and Computer Engineering","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125169176","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 : 2019-07-01DOI: 10.1109/QIR.2019.8898292
Y. Rahayu, M. Hilmi, H. Masdar
Breast cancer has become a significant health problem for women. Early detection of breast cancer in women is critical for proper and effective treatment. Ultra-Wideband (UWB) Microwave imaging is a technique that used wide bandwidth electromagnetic signals to see through the internal structure of the breast. This paper introduces the novel design of circular and rectangular antenna array in ring configuration which operated at frequency 2 GHz - 11 GHz. The antenna is designed and simulated to detect the presence of a tumor. The analysis is done by comparing the E-field, H-field, Specific Absorption Rate (SAR) of antenna without/with a tumor. With ring configuration, each element of the antenna is directly faced to the breast phantom for better tumor detection. From the simulation results, the E-field and H-field are obtained for breast with tumor. The SAR obtained is around 1.3 W/Kg, and safe to be used on breast tumor detection.
{"title":"A Novel Design Rectangular UWB Antenna Array for Microwave Breast Tumor Detection","authors":"Y. Rahayu, M. Hilmi, H. Masdar","doi":"10.1109/QIR.2019.8898292","DOIUrl":"https://doi.org/10.1109/QIR.2019.8898292","url":null,"abstract":"Breast cancer has become a significant health problem for women. Early detection of breast cancer in women is critical for proper and effective treatment. Ultra-Wideband (UWB) Microwave imaging is a technique that used wide bandwidth electromagnetic signals to see through the internal structure of the breast. This paper introduces the novel design of circular and rectangular antenna array in ring configuration which operated at frequency 2 GHz - 11 GHz. The antenna is designed and simulated to detect the presence of a tumor. The analysis is done by comparing the E-field, H-field, Specific Absorption Rate (SAR) of antenna without/with a tumor. With ring configuration, each element of the antenna is directly faced to the breast phantom for better tumor detection. From the simulation results, the E-field and H-field are obtained for breast with tumor. The SAR obtained is around 1.3 W/Kg, and safe to be used on breast tumor detection.","PeriodicalId":284463,"journal":{"name":"2019 16th International Conference on Quality in Research (QIR): International Symposium on Electrical and Computer Engineering","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128874836","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 : 2019-07-01DOI: 10.1109/QIR.2019.8898262
Eko Suryo Santoso, Amriane Hidayati, M. Suryanegara, M. I. Nashiruddin
Narrow Band Internet of Things (NB-IoT) is one of the cellular network technologies that use small and low power frequency bands standardized by 3GGP Release 13. It is one of Low Power Wide Area (LPWA)-based connectivity technology that enables a wide range, support many connected devices, low cost, and long battery life. The LPWA technologies help network operators to address the challenge of typical IoT characteristics. Smart metering is an application that potentially uses NB-IoT technology for energy management that is predicted to be implemented massively soon. Network planning of IoT needs to be conducted in the early stage of development to maximize IoT value. This study aims to provide NB-IoT network planning in terms of coverage and capacity at an Indonesian Mobile Network Operator (MNO) in the area of JaDeTaBek (Jakarta Depok Tangerang Bekasi).
{"title":"NB-IoT Network Planning for Smart Metering Services in Jakarta, Depok, Tangerang, and Bekasi","authors":"Eko Suryo Santoso, Amriane Hidayati, M. Suryanegara, M. I. Nashiruddin","doi":"10.1109/QIR.2019.8898262","DOIUrl":"https://doi.org/10.1109/QIR.2019.8898262","url":null,"abstract":"Narrow Band Internet of Things (NB-IoT) is one of the cellular network technologies that use small and low power frequency bands standardized by 3GGP Release 13. It is one of Low Power Wide Area (LPWA)-based connectivity technology that enables a wide range, support many connected devices, low cost, and long battery life. The LPWA technologies help network operators to address the challenge of typical IoT characteristics. Smart metering is an application that potentially uses NB-IoT technology for energy management that is predicted to be implemented massively soon. Network planning of IoT needs to be conducted in the early stage of development to maximize IoT value. This study aims to provide NB-IoT network planning in terms of coverage and capacity at an Indonesian Mobile Network Operator (MNO) in the area of JaDeTaBek (Jakarta Depok Tangerang Bekasi).","PeriodicalId":284463,"journal":{"name":"2019 16th International Conference on Quality in Research (QIR): International Symposium on Electrical and Computer Engineering","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122260782","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 : 2019-07-01DOI: 10.1109/qir.2019.8898282
{"title":"QIR 2019 Preface","authors":"","doi":"10.1109/qir.2019.8898282","DOIUrl":"https://doi.org/10.1109/qir.2019.8898282","url":null,"abstract":"","PeriodicalId":284463,"journal":{"name":"2019 16th International Conference on Quality in Research (QIR): International Symposium on Electrical and Computer Engineering","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123147779","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 : 2019-07-01DOI: 10.1109/QIR.2019.8898261
L. Sari, S. Alam, I. Surjati
The use of Wireless Sensor Network (WSN) in a variety of fields such as military, logistics and environment monitoring has been growing significantly in the last decade. A WSN comprises nodes with capabilities to sense, process and forward information with preferably low energy consumption to prolong the network life-time. This study investigates the use of Reed Solomon (RS) codes as an error correction code to provide reliability to the data transmission in Rayleigh and Nakagami-m distributed fading channels, and their effects on the energy consumption. Simulation results show that while the energy consumption in a network increases in accordance to the increase of the number of nodes for both fading channels, the required energy is significantly higher to obtain low bit error probability for low number of nodes. When the number of nodes in the network is low, the energy needed by the code capable of a higher level of protection almost matches that needed by the code that provides low protection level. The trade-off between code strength and energy consumption is an important factor to consider when the number of nodes in the network is high.
{"title":"Energy Consideration For Wireless Sensor Network","authors":"L. Sari, S. Alam, I. Surjati","doi":"10.1109/QIR.2019.8898261","DOIUrl":"https://doi.org/10.1109/QIR.2019.8898261","url":null,"abstract":"The use of Wireless Sensor Network (WSN) in a variety of fields such as military, logistics and environment monitoring has been growing significantly in the last decade. A WSN comprises nodes with capabilities to sense, process and forward information with preferably low energy consumption to prolong the network life-time. This study investigates the use of Reed Solomon (RS) codes as an error correction code to provide reliability to the data transmission in Rayleigh and Nakagami-m distributed fading channels, and their effects on the energy consumption. Simulation results show that while the energy consumption in a network increases in accordance to the increase of the number of nodes for both fading channels, the required energy is significantly higher to obtain low bit error probability for low number of nodes. When the number of nodes in the network is low, the energy needed by the code capable of a higher level of protection almost matches that needed by the code that provides low protection level. The trade-off between code strength and energy consumption is an important factor to consider when the number of nodes in the network is high.","PeriodicalId":284463,"journal":{"name":"2019 16th International Conference on Quality in Research (QIR): International Symposium on Electrical and Computer Engineering","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130508936","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 : 2019-07-01DOI: 10.1109/QIR.2019.8898285
M. R. Hidayat, Try Anugrah, A. Munir
In this paper, an automatic coffee brewing system configured using pour over V60 technique is designed based on ATmega16 microcontroler. Due to the use of medium which has a shape like the letter V with a 60° angle in filtering process, therefore it is called as pour over V60 technique. An ATmega16 microcontroller is applied to make sure all the processes can be running automatically, as well as to store and execute the data during the process. In order the proposed system satisfies the expectation, some parametric studies are carried out during the design by inputing and measuring data such as water volume, coffee powder quantity, water temperature and extraction time into the system. From the experimentations, the system has been successfully making coffee with a ratio of 1:10 and resulting data collected in the microcontroller with water volume, coffee powder quantity, and water temperature of 215 ml, 21.02 gr, and 95°C respectively. In addition, from the experimental result, it is found that the accuracy of thermocouple sensor used to measure the water temperature is around 98%.
{"title":"ATmega16 Microcontroller-based Automatic Coffee Brewing System using Pour Over V60 Technique","authors":"M. R. Hidayat, Try Anugrah, A. Munir","doi":"10.1109/QIR.2019.8898285","DOIUrl":"https://doi.org/10.1109/QIR.2019.8898285","url":null,"abstract":"In this paper, an automatic coffee brewing system configured using pour over V60 technique is designed based on ATmega16 microcontroler. Due to the use of medium which has a shape like the letter V with a 60° angle in filtering process, therefore it is called as pour over V60 technique. An ATmega16 microcontroller is applied to make sure all the processes can be running automatically, as well as to store and execute the data during the process. In order the proposed system satisfies the expectation, some parametric studies are carried out during the design by inputing and measuring data such as water volume, coffee powder quantity, water temperature and extraction time into the system. From the experimentations, the system has been successfully making coffee with a ratio of 1:10 and resulting data collected in the microcontroller with water volume, coffee powder quantity, and water temperature of 215 ml, 21.02 gr, and 95°C respectively. In addition, from the experimental result, it is found that the accuracy of thermocouple sensor used to measure the water temperature is around 98%.","PeriodicalId":284463,"journal":{"name":"2019 16th International Conference on Quality in Research (QIR): International Symposium on Electrical and Computer Engineering","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134261119","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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