Pub Date : 2017-08-01DOI: 10.1109/INAES.2017.8068554
Christian Herdianto Setjo, Balza Achmad, Faridah
Haar-Cascade classifier method has been applied to detect the presence of a human on the thermal image. The evaluation was done on the performance of detection, represented by its precision and recall values. The thermal camera images were varied to obtain comprehensive results, which covered the distance of the object from the camera, the angle of the camera to the object, the number of objects, and the environmental conditions during image acquisition. The results showed that the greater the camera-object distance, the precision and recall of human detection results declined. Human objects would also be hard to detect if his/her pose was not facing frontally. The method was able to detect more than one human in the image with positions of in front of each other, side by side, or overlapped to one another. However, if there was any other object in the image that had characteristics similar to a human, the object would also be detected as a human being, resulting in a false detection. These other objects could be an infrared shadow formed from the reflection on glass or painted walls.
{"title":"Thermal image human detection using Haar-cascade classifier","authors":"Christian Herdianto Setjo, Balza Achmad, Faridah","doi":"10.1109/INAES.2017.8068554","DOIUrl":"https://doi.org/10.1109/INAES.2017.8068554","url":null,"abstract":"Haar-Cascade classifier method has been applied to detect the presence of a human on the thermal image. The evaluation was done on the performance of detection, represented by its precision and recall values. The thermal camera images were varied to obtain comprehensive results, which covered the distance of the object from the camera, the angle of the camera to the object, the number of objects, and the environmental conditions during image acquisition. The results showed that the greater the camera-object distance, the precision and recall of human detection results declined. Human objects would also be hard to detect if his/her pose was not facing frontally. The method was able to detect more than one human in the image with positions of in front of each other, side by side, or overlapped to one another. However, if there was any other object in the image that had characteristics similar to a human, the object would also be detected as a human being, resulting in a false detection. These other objects could be an infrared shadow formed from the reflection on glass or painted walls.","PeriodicalId":382919,"journal":{"name":"2017 7th International Annual Engineering Seminar (InAES)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126273336","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 : 2017-08-01DOI: 10.1109/INAES.2017.8068564
G. Nugroho, Heryoga Winarbawa, Autha Rachman
Determination of optimal cutting parameters is important in the CO2 laser cutting process to obtain good cutting result. In this experiment, agel leaf fiber/unsaturated polyester (ALF/UP) are being used as test specimen. Agel leaf fiber usage as composite reinforcement is in order to fulfill sustainability issue. The purpose of this study is to find the material removal rate (MRR) of laser cutting process of ALF/UP composites. Taguchi's L27 orthogonal array was implemented in experiment to determine which parameter are most influential in the CO2 laser cutting process. ANOVA used to find which cutting parameters affect MRR the most. Four parameters from laser cutting machine, the laser power (36, 48, 60 W), the cutting speed (2, 4, 6 mm/s), the nozzle tip distance (24, 26, 28 mm), the cutting angle (0, 30, 45°), and one parameter from composite itself, the number of layers (4, 6, 8 layers) were used in the experiment. It was found that optimum MRR is obtained with 48W power and cutting speed of 6 mm/s. Another parameter such as nozzle tip distance and cutting angle have no significant effect to the MRR.
{"title":"Machinability investigation of agel leaf fiber unsaturated polyester composite with CO2 laser cutting machine","authors":"G. Nugroho, Heryoga Winarbawa, Autha Rachman","doi":"10.1109/INAES.2017.8068564","DOIUrl":"https://doi.org/10.1109/INAES.2017.8068564","url":null,"abstract":"Determination of optimal cutting parameters is important in the CO2 laser cutting process to obtain good cutting result. In this experiment, agel leaf fiber/unsaturated polyester (ALF/UP) are being used as test specimen. Agel leaf fiber usage as composite reinforcement is in order to fulfill sustainability issue. The purpose of this study is to find the material removal rate (MRR) of laser cutting process of ALF/UP composites. Taguchi's L27 orthogonal array was implemented in experiment to determine which parameter are most influential in the CO2 laser cutting process. ANOVA used to find which cutting parameters affect MRR the most. Four parameters from laser cutting machine, the laser power (36, 48, 60 W), the cutting speed (2, 4, 6 mm/s), the nozzle tip distance (24, 26, 28 mm), the cutting angle (0, 30, 45°), and one parameter from composite itself, the number of layers (4, 6, 8 layers) were used in the experiment. It was found that optimum MRR is obtained with 48W power and cutting speed of 6 mm/s. Another parameter such as nozzle tip distance and cutting angle have no significant effect to the MRR.","PeriodicalId":382919,"journal":{"name":"2017 7th International Annual Engineering Seminar (InAES)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122630553","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 : 2017-08-01DOI: 10.1109/INAES.2017.8068569
Budi Azhari, F. Danang Wijaya, Muhammad Rifa'i Putra Sugita, Kukuh Daud Pribadi
South coast of Java has been highly preferred as the placement location of wave energy converter, due to its relatively huge energy potential. Furthermore, linear permanent magnet generator (LPMG) has became one of the popular methods to convert wave energy to electrical energy. Based on the shape of stator core, there are several models of LPMG. Quasi-flat LPMG is one of them, which has rectangular stator core shape. In this paper, the quasi-flat LPMG would be designed and optimized. The design considered wave characteristics in the south coast of Java. Meanwhile, the optimization was performed to minimize resulted copper loss for equal output power. To achieve the optimization goal, flower pollination algorithm (FPA) was used. This algorithm continuously adjusts several geometrical parameter of the LPMG by certain mechanism until the objective function is met. The results showed that the optimization could reduce the resulted copper loss of about 71.95%. It also increased the electrical efficiency from 83.2% to 95.28%.
{"title":"Design optimization of Quasi-flat linear PM generator for wave energy converter in south coast of Java using flower pollination algorithm","authors":"Budi Azhari, F. Danang Wijaya, Muhammad Rifa'i Putra Sugita, Kukuh Daud Pribadi","doi":"10.1109/INAES.2017.8068569","DOIUrl":"https://doi.org/10.1109/INAES.2017.8068569","url":null,"abstract":"South coast of Java has been highly preferred as the placement location of wave energy converter, due to its relatively huge energy potential. Furthermore, linear permanent magnet generator (LPMG) has became one of the popular methods to convert wave energy to electrical energy. Based on the shape of stator core, there are several models of LPMG. Quasi-flat LPMG is one of them, which has rectangular stator core shape. In this paper, the quasi-flat LPMG would be designed and optimized. The design considered wave characteristics in the south coast of Java. Meanwhile, the optimization was performed to minimize resulted copper loss for equal output power. To achieve the optimization goal, flower pollination algorithm (FPA) was used. This algorithm continuously adjusts several geometrical parameter of the LPMG by certain mechanism until the objective function is met. The results showed that the optimization could reduce the resulted copper loss of about 71.95%. It also increased the electrical efficiency from 83.2% to 95.28%.","PeriodicalId":382919,"journal":{"name":"2017 7th International Annual Engineering Seminar (InAES)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114993570","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 : 2017-08-01DOI: 10.1109/INAES.2017.8068571
S. Brian Bramantyo, B. S. Munir, A. Habibie
Tertiary winding connection arrangement might give various effects in conjunction with modern Inter Bus Transformer (IBT) failure. An investigation was conducted upon the failure of an IBT which consist of three one-phase-banks and had one side of delta tertiary winding connection grounded through the tertiary bushings. Apart from the oil test, all routine maintenance historical data showed no early failure indication while visual inspection showed arc marking on tertiary bushing rod. Phase to ground fault simulation on tertiary winding was performed with actual field data and arrangement reference. Current waveform of the simulation result matched with current waveform of Digital Fault Recorder (DFR) data; hence it was suspected that the failure had happened on tertiary winding connection side. According to the simulation, tertiary bushing which connected tertiary winding of each IBT banks to form delta connection and grounded at one side suffered voltage stress above its phase to earth rating. This continuous voltage overstress decreased the insulation strength of tertiary bushing which lead to breakdown.
{"title":"Investigation of tertiary fault in 500/150/66kV 500MVA inter bus transformer","authors":"S. Brian Bramantyo, B. S. Munir, A. Habibie","doi":"10.1109/INAES.2017.8068571","DOIUrl":"https://doi.org/10.1109/INAES.2017.8068571","url":null,"abstract":"Tertiary winding connection arrangement might give various effects in conjunction with modern Inter Bus Transformer (IBT) failure. An investigation was conducted upon the failure of an IBT which consist of three one-phase-banks and had one side of delta tertiary winding connection grounded through the tertiary bushings. Apart from the oil test, all routine maintenance historical data showed no early failure indication while visual inspection showed arc marking on tertiary bushing rod. Phase to ground fault simulation on tertiary winding was performed with actual field data and arrangement reference. Current waveform of the simulation result matched with current waveform of Digital Fault Recorder (DFR) data; hence it was suspected that the failure had happened on tertiary winding connection side. According to the simulation, tertiary bushing which connected tertiary winding of each IBT banks to form delta connection and grounded at one side suffered voltage stress above its phase to earth rating. This continuous voltage overstress decreased the insulation strength of tertiary bushing which lead to breakdown.","PeriodicalId":382919,"journal":{"name":"2017 7th International Annual Engineering Seminar (InAES)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115136136","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 : 2017-08-01DOI: 10.1109/INAES.2017.8068559
A. Prakoso, R. Sriwijaya
One type of robots that is interesting to develop is climbing robot. In order to create a robot that can move vertically, observation and data gathering on caterpillar's walking movement are needed. FEA simulation was conducted to attain stress distribution pattern of caterpillar's legs. A simulation was conducted to the climbing robot design to get the stress distribution pattern of each of its legs. The observation result showed that the papilio memnon caterpillar needed seven movements in every single step. The mechanism of its walking movement resembled a wave. The climbing robot's structures was designed to be able to move forward, backward, and to turn.
{"title":"Design of climbing robot's structure inspired by papilio memnon caterpillar","authors":"A. Prakoso, R. Sriwijaya","doi":"10.1109/INAES.2017.8068559","DOIUrl":"https://doi.org/10.1109/INAES.2017.8068559","url":null,"abstract":"One type of robots that is interesting to develop is climbing robot. In order to create a robot that can move vertically, observation and data gathering on caterpillar's walking movement are needed. FEA simulation was conducted to attain stress distribution pattern of caterpillar's legs. A simulation was conducted to the climbing robot design to get the stress distribution pattern of each of its legs. The observation result showed that the papilio memnon caterpillar needed seven movements in every single step. The mechanism of its walking movement resembled a wave. The climbing robot's structures was designed to be able to move forward, backward, and to turn.","PeriodicalId":382919,"journal":{"name":"2017 7th International Annual Engineering Seminar (InAES)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126433097","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 : 2017-08-01DOI: 10.1109/INAES.2017.8068562
H. Rochardjo, Bagus Gentur Sakanegara
This paper deals with the design, manufacture and application of NC machine for cutting 2D intricate path of plane styrofoam. The cutter uses nickel wire heated by DC electric current. The X and Y axis is moved using open loop controlled stepper motor. The path that is cut is first was taken from picture, than changed the captured picture into line graph, and then programming the machine to follow the resulted line. The result shows that the machine can cut well in intricate path shape in the form of wayang figure without typing manually long NC code. The testing shows that the average distance error reaches of 0,245 mm on average in both x and y axis.
{"title":"Development of styrofoam cutter NC machine for intricate cutting path","authors":"H. Rochardjo, Bagus Gentur Sakanegara","doi":"10.1109/INAES.2017.8068562","DOIUrl":"https://doi.org/10.1109/INAES.2017.8068562","url":null,"abstract":"This paper deals with the design, manufacture and application of NC machine for cutting 2D intricate path of plane styrofoam. The cutter uses nickel wire heated by DC electric current. The X and Y axis is moved using open loop controlled stepper motor. The path that is cut is first was taken from picture, than changed the captured picture into line graph, and then programming the machine to follow the resulted line. The result shows that the machine can cut well in intricate path shape in the form of wayang figure without typing manually long NC code. The testing shows that the average distance error reaches of 0,245 mm on average in both x and y axis.","PeriodicalId":382919,"journal":{"name":"2017 7th International Annual Engineering Seminar (InAES)","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121145500","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 : 2017-08-01DOI: 10.1109/INAES.2017.8068575
T. Hariyanto, C. B. Pribadi, U. W. Deviantari
The dynamics is very high activity spurred the development of the Surabaya city is very fast and the population growth is increasingly crowded. With the rapid growth of the population, as a source of land supply for housing development into the needs of each individual becomes increasingly limited. According to suitability of land for planning the development of residential areas in West Surabaya, housing development can be carried out in three districts located in the area of West Surabaya city which Lakarsantri subdistrict, district Sambikerep, and sub Sukomanunggal. Therefore, in this study will be to analyze the development planning of housing in urban areas, especially in West Surabaya to determine the priority location of residential area development using Analytical Hierarchy Process Method. This method aims to determine priority location with weighting against each criteria and sub-criteria, and alternative were used. Priority Scale were used based on primary data collection form of questionnaires and interviews to respondents who expert in the field of social, economic, accessibility. The result of this research, main priority of determining the location of residential area development located in district of Sukomanunggal, second priority located in district of Sambikerep, and the third priority located in district of Lakarsantri.
{"title":"Determination of priority location of residential area development using analytical hierarchy process method: Case study : West Surabaya, East Java","authors":"T. Hariyanto, C. B. Pribadi, U. W. Deviantari","doi":"10.1109/INAES.2017.8068575","DOIUrl":"https://doi.org/10.1109/INAES.2017.8068575","url":null,"abstract":"The dynamics is very high activity spurred the development of the Surabaya city is very fast and the population growth is increasingly crowded. With the rapid growth of the population, as a source of land supply for housing development into the needs of each individual becomes increasingly limited. According to suitability of land for planning the development of residential areas in West Surabaya, housing development can be carried out in three districts located in the area of West Surabaya city which Lakarsantri subdistrict, district Sambikerep, and sub Sukomanunggal. Therefore, in this study will be to analyze the development planning of housing in urban areas, especially in West Surabaya to determine the priority location of residential area development using Analytical Hierarchy Process Method. This method aims to determine priority location with weighting against each criteria and sub-criteria, and alternative were used. Priority Scale were used based on primary data collection form of questionnaires and interviews to respondents who expert in the field of social, economic, accessibility. The result of this research, main priority of determining the location of residential area development located in district of Sukomanunggal, second priority located in district of Sambikerep, and the third priority located in district of Lakarsantri.","PeriodicalId":382919,"journal":{"name":"2017 7th International Annual Engineering Seminar (InAES)","volume":"171 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131098241","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 : 2017-08-01DOI: 10.1109/INAES.2017.8068546
Z. Abidin, A. Munir
This paper presents the experimental study on small scale frequency-modulated continuous-wave (FMCW) synthetic aperture radar (SAR). The FMCW SAR system which is intended for unmanned aerial vehicle (UAV) payload uses 25–35MHz chirp signal generated using Direct Digital Synthesizer (DDS) which is transmitted at L-band frequency of 1.27GHz generated by voltage controlled oscillator (VCO). The choice of system-components is considered to make the dimension as compact as possible so it is implementable as UAV payload. From the characterization, it shows that the system can achieve the range target detection of 1200m with the slant range resolution of 15m. Although some discrepancies occur in the measurement results which are evoked by the measurement environment, however the proposed system could satisfy the desired requirement for UAV payload.
{"title":"Experimental study on small scale L-band FMCW synthetic aperture radar","authors":"Z. Abidin, A. Munir","doi":"10.1109/INAES.2017.8068546","DOIUrl":"https://doi.org/10.1109/INAES.2017.8068546","url":null,"abstract":"This paper presents the experimental study on small scale frequency-modulated continuous-wave (FMCW) synthetic aperture radar (SAR). The FMCW SAR system which is intended for unmanned aerial vehicle (UAV) payload uses 25–35MHz chirp signal generated using Direct Digital Synthesizer (DDS) which is transmitted at L-band frequency of 1.27GHz generated by voltage controlled oscillator (VCO). The choice of system-components is considered to make the dimension as compact as possible so it is implementable as UAV payload. From the characterization, it shows that the system can achieve the range target detection of 1200m with the slant range resolution of 15m. Although some discrepancies occur in the measurement results which are evoked by the measurement environment, however the proposed system could satisfy the desired requirement for UAV payload.","PeriodicalId":382919,"journal":{"name":"2017 7th International Annual Engineering Seminar (InAES)","volume":"2020 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123064282","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 : 2017-08-01DOI: 10.1109/INAES.2017.8068572
Eka Septiyadi, E. Firmansyah, F. Danang Wijaya
Rural electrification in an archipelago country like Indonesia is a challenge. Indonesian government has stated that basic need of electricity is 60 kWh, however it is not easy to fulfill it. Fortunately, Indonesia is rich in biomass potency. Therefore, converting biomass energy to electricity might be a solution to the country electricity problem. A simple thermal energy harvesting system comprised of biomass burner and thermoelectric generator was investigated. Hot water storage was introduced to provide steady temperature. This paper specifically reported about the fuel storage mechanism of the proposed system. Two fuel storage mechanisms are investigated: integrated and bulk storage types. Integrated storage is a fuel storage facility that is included on energy harvesting device which useful in short-term operation, while bulk storage is located external of energy harvesting device which normally used for long-term operation. Based on the specification of pellet type, which is referred to EN 14961-1 standard, calculation shown that the largest volume of integrated fuel storage type for 168 hours of operation is 0.345 m3, while the bulk fuel storage type is 4.728 m3 for 6 months of operation.
{"title":"Preliminary design of biomass fuel storage on a thermoelectric based biomass-electric energy conversion","authors":"Eka Septiyadi, E. Firmansyah, F. Danang Wijaya","doi":"10.1109/INAES.2017.8068572","DOIUrl":"https://doi.org/10.1109/INAES.2017.8068572","url":null,"abstract":"Rural electrification in an archipelago country like Indonesia is a challenge. Indonesian government has stated that basic need of electricity is 60 kWh, however it is not easy to fulfill it. Fortunately, Indonesia is rich in biomass potency. Therefore, converting biomass energy to electricity might be a solution to the country electricity problem. A simple thermal energy harvesting system comprised of biomass burner and thermoelectric generator was investigated. Hot water storage was introduced to provide steady temperature. This paper specifically reported about the fuel storage mechanism of the proposed system. Two fuel storage mechanisms are investigated: integrated and bulk storage types. Integrated storage is a fuel storage facility that is included on energy harvesting device which useful in short-term operation, while bulk storage is located external of energy harvesting device which normally used for long-term operation. Based on the specification of pellet type, which is referred to EN 14961-1 standard, calculation shown that the largest volume of integrated fuel storage type for 168 hours of operation is 0.345 m3, while the bulk fuel storage type is 4.728 m3 for 6 months of operation.","PeriodicalId":382919,"journal":{"name":"2017 7th International Annual Engineering Seminar (InAES)","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132965787","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 : 2017-08-01DOI: 10.1109/INAES.2017.8068541
Faisal Arda, L. Nugroho, Widyawan
The use of smartphones increasingly inseparable from human life. However, many users are using smartphones too often, so that they forget the time and consciously or unconsciously looked too close and too tilted to the screen of their smartphone. This bad habit that commonly done by smartphone users to correct the eye vision of what they were seeing on their smartphone's screen are highly unhealthy, particularly for their eyes and neck. Previously related research was created to help smartphone users preventing unhealthy reading postures while users in a standing or sitting position but most of the existing research do not researching the monitoring on lying down positions and its variation, especially on supine position. Which based on current research most users always tilt their heads 30° to 60° while reading on their smartphone screen with supine position, and its weight is about 4–6 times heavier than the normal head weight during normal posture. The validated result in this research show that by using accelerometer Z axis and captured image parameters only, it can be detected whether the user position is supine or not and the neck angle can be detected to inform users whether their posture are good or not while using smartphone.
{"title":"Activity monitoring system in supine position for preventing unhealthy smartphone reading posture","authors":"Faisal Arda, L. Nugroho, Widyawan","doi":"10.1109/INAES.2017.8068541","DOIUrl":"https://doi.org/10.1109/INAES.2017.8068541","url":null,"abstract":"The use of smartphones increasingly inseparable from human life. However, many users are using smartphones too often, so that they forget the time and consciously or unconsciously looked too close and too tilted to the screen of their smartphone. This bad habit that commonly done by smartphone users to correct the eye vision of what they were seeing on their smartphone's screen are highly unhealthy, particularly for their eyes and neck. Previously related research was created to help smartphone users preventing unhealthy reading postures while users in a standing or sitting position but most of the existing research do not researching the monitoring on lying down positions and its variation, especially on supine position. Which based on current research most users always tilt their heads 30° to 60° while reading on their smartphone screen with supine position, and its weight is about 4–6 times heavier than the normal head weight during normal posture. The validated result in this research show that by using accelerometer Z axis and captured image parameters only, it can be detected whether the user position is supine or not and the neck angle can be detected to inform users whether their posture are good or not while using smartphone.","PeriodicalId":382919,"journal":{"name":"2017 7th International Annual Engineering Seminar (InAES)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131593630","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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