Pub Date : 2019-10-31DOI: 10.1109/NSENS49395.2019.9293966
Dongxin Xu, Tao Zhang, Ning Hu
Quantitative and chronic monitoring of biological and physiological status of cardiomyocytes plays a significant role in building in vitro cardiac models for the study of cardiology and pharmacology. Label-based recording methods usually cause damage to cells and fail to perform the accurate and chronic recording of cardiomyocytes. Here, we develop an integrated microelectrode and interdigitated electrode multifunctional biosensor, simultaneously recording the extracellular potential, mechanical beating and growth viability signals of cardiomyocytes in a long-term, dynamic, real-time, and non-invasive manners. By further analysis of the multiparameter signals, it can be concluded that cardiomyocytes will reach stable status after eight-day culture, which could be employed for drug screening. We believe our multifunctional biosensing system will be a utility platform for the study of cardiology and pharmacology.
{"title":"Synchronized High-Content Recording of Cardiomyocytes in Vitro by Integrated Cell-Based Biosensor","authors":"Dongxin Xu, Tao Zhang, Ning Hu","doi":"10.1109/NSENS49395.2019.9293966","DOIUrl":"https://doi.org/10.1109/NSENS49395.2019.9293966","url":null,"abstract":"Quantitative and chronic monitoring of biological and physiological status of cardiomyocytes plays a significant role in building in vitro cardiac models for the study of cardiology and pharmacology. Label-based recording methods usually cause damage to cells and fail to perform the accurate and chronic recording of cardiomyocytes. Here, we develop an integrated microelectrode and interdigitated electrode multifunctional biosensor, simultaneously recording the extracellular potential, mechanical beating and growth viability signals of cardiomyocytes in a long-term, dynamic, real-time, and non-invasive manners. By further analysis of the multiparameter signals, it can be concluded that cardiomyocytes will reach stable status after eight-day culture, which could be employed for drug screening. We believe our multifunctional biosensing system will be a utility platform for the study of cardiology and pharmacology.","PeriodicalId":246485,"journal":{"name":"2019 IEEE THE 2nd INTERNATIONAL CONFERENCE ON MICRO/NANO SENSORS for AI, HEALTHCARE, AND ROBOTICS (NSENS)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116328273","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 : 2019-10-31DOI: 10.1109/NSENS49395.2019.9293995
Frank Xiao, Victoria Zhang, Shan Cecilia Cao
With people realizing the effects of global warming and the greenhouse gas effect, people are trying to find a new way to power the world without sacrificing our health and the health of the earth. As the use of fossil fuels increases, it greatens the risk of climate change and other by-products of pollution into the ozone layer. When the forest grows, it absorbs the CO2. Of course, this is only plausible if society is able to sustainably manage the process of harvesting and regrowth. If society can do that, biomass can be continued indefinitely, which makes biomass a renewable source of energy capable of causing far less damage than the traditional fuels society uses today. Y-valerolactone (GVL) was chosen as a solvent due to its properties. First off, GVL is able to be recycled which makes it better for the environment than the fossil fuel alternative or any previous solvent used. Most previous solvents were toxic, and therefore terrible and not eco-friendly. Therefore, GVL provides engineers and scientists hope for creating biofuels and chemicals that can enhance the production of biofuels and biomass.
{"title":"An Efficient Biomass Conversion via Y-valerolactone","authors":"Frank Xiao, Victoria Zhang, Shan Cecilia Cao","doi":"10.1109/NSENS49395.2019.9293995","DOIUrl":"https://doi.org/10.1109/NSENS49395.2019.9293995","url":null,"abstract":"With people realizing the effects of global warming and the greenhouse gas effect, people are trying to find a new way to power the world without sacrificing our health and the health of the earth. As the use of fossil fuels increases, it greatens the risk of climate change and other by-products of pollution into the ozone layer. When the forest grows, it absorbs the CO2. Of course, this is only plausible if society is able to sustainably manage the process of harvesting and regrowth. If society can do that, biomass can be continued indefinitely, which makes biomass a renewable source of energy capable of causing far less damage than the traditional fuels society uses today. Y-valerolactone (GVL) was chosen as a solvent due to its properties. First off, GVL is able to be recycled which makes it better for the environment than the fossil fuel alternative or any previous solvent used. Most previous solvents were toxic, and therefore terrible and not eco-friendly. Therefore, GVL provides engineers and scientists hope for creating biofuels and chemicals that can enhance the production of biofuels and biomass.","PeriodicalId":246485,"journal":{"name":"2019 IEEE THE 2nd INTERNATIONAL CONFERENCE ON MICRO/NANO SENSORS for AI, HEALTHCARE, AND ROBOTICS (NSENS)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116483182","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 : 2019-10-31DOI: 10.1109/NSENS49395.2019.9293958
Steven J. Jennings, T. Wu, B. Regez, Shan Cecilia Cao
To improve nondestructive evaluation (NDE), the dependences of acoustic emission testing were investigated. Acoustic emission testing, is a technique in the NDE field that has multiple different advantages. Its versatility allows engineers and other researchers to detect and monitor flaws and discontinuities within different materials. This report will describe how acoustic emission (AE) testing is being used to monitor materials such as metal, concrete, composites, polymers, and wood. This will be done by explaining a brief theory and provide examples of AE and how it’s applied to different materials. NDE is an important field within engineering because it evaluates complex components of a system and provides data related to the health of these components without damaging them. This paper describes in detail the AE detection and verification process in order to give some references for the industry counterparts, while promoting the development of the AE technology.
{"title":"A Review on Effective Acoustic Emission","authors":"Steven J. Jennings, T. Wu, B. Regez, Shan Cecilia Cao","doi":"10.1109/NSENS49395.2019.9293958","DOIUrl":"https://doi.org/10.1109/NSENS49395.2019.9293958","url":null,"abstract":"To improve nondestructive evaluation (NDE), the dependences of acoustic emission testing were investigated. Acoustic emission testing, is a technique in the NDE field that has multiple different advantages. Its versatility allows engineers and other researchers to detect and monitor flaws and discontinuities within different materials. This report will describe how acoustic emission (AE) testing is being used to monitor materials such as metal, concrete, composites, polymers, and wood. This will be done by explaining a brief theory and provide examples of AE and how it’s applied to different materials. NDE is an important field within engineering because it evaluates complex components of a system and provides data related to the health of these components without damaging them. This paper describes in detail the AE detection and verification process in order to give some references for the industry counterparts, while promoting the development of the AE technology.","PeriodicalId":246485,"journal":{"name":"2019 IEEE THE 2nd INTERNATIONAL CONFERENCE ON MICRO/NANO SENSORS for AI, HEALTHCARE, AND ROBOTICS (NSENS)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128134970","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 : 2019-10-31DOI: 10.1109/NSENS49395.2019.9293991
Yun Chen, Zijing Wang, Shuo Sheng, G. Shi
Automated Optical Inspection (AOI) technology is widely used in industrial scenes, and the research mostly focuses on theoretical models or system design. In the industrial production environment, for different types and specifications of products, it is necessary to adjust the threshold of the detection parameters in time according to the detection of product defects, in order to improve the detection rate of the equipment. In this paper, in the study of the actual scene, the defect data generated by equipment detection is collected and collated, and the detection parameters of different types of defects are analyzed by machine learning methods, so as to improve the accuracy of defect detection.
{"title":"Research on Accuracy Improvement Technology of Defect Detection Based on Machine Learning","authors":"Yun Chen, Zijing Wang, Shuo Sheng, G. Shi","doi":"10.1109/NSENS49395.2019.9293991","DOIUrl":"https://doi.org/10.1109/NSENS49395.2019.9293991","url":null,"abstract":"Automated Optical Inspection (AOI) technology is widely used in industrial scenes, and the research mostly focuses on theoretical models or system design. In the industrial production environment, for different types and specifications of products, it is necessary to adjust the threshold of the detection parameters in time according to the detection of product defects, in order to improve the detection rate of the equipment. In this paper, in the study of the actual scene, the defect data generated by equipment detection is collected and collated, and the detection parameters of different types of defects are analyzed by machine learning methods, so as to improve the accuracy of defect detection.","PeriodicalId":246485,"journal":{"name":"2019 IEEE THE 2nd INTERNATIONAL CONFERENCE ON MICRO/NANO SENSORS for AI, HEALTHCARE, AND ROBOTICS (NSENS)","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121630428","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 : 2019-10-31DOI: 10.1109/NSENS49395.2019.9293993
Minghong Xu, G. Shi
The motion totally different between Aircrafts fly at high altitude and vehicles drive on road. Aircraft have many flight attitudes such as pitch up and down, roll left or right, and so on. Flight attitudes determine the height and direction of aircraft, but aircraft pilot’s body is also changing with flight attitudes, that means all the senses are unreliable when pilot flight in aircraft. If aircraft turning a small angle and happened serious shaking, pilot can’t adjust the balance and find the horizon immediately, that might cause aircraft do not restores flight attitudes in right position. In the same way, when aircraft night operating over the ocean, both ocean and dark sky has glisten, it is can’t easily to tell ocean from dark sky. that might cause the aircraft accident like errant flight or crashed into ocean, those accidents were frequently happened at beginning of aviation’ growth. Thus, through the tracking of flight attitudes can make sure the aircraft flight in right direction and safety.
{"title":"Research on flight attitude tracking technology of fixed wing UAV","authors":"Minghong Xu, G. Shi","doi":"10.1109/NSENS49395.2019.9293993","DOIUrl":"https://doi.org/10.1109/NSENS49395.2019.9293993","url":null,"abstract":"The motion totally different between Aircrafts fly at high altitude and vehicles drive on road. Aircraft have many flight attitudes such as pitch up and down, roll left or right, and so on. Flight attitudes determine the height and direction of aircraft, but aircraft pilot’s body is also changing with flight attitudes, that means all the senses are unreliable when pilot flight in aircraft. If aircraft turning a small angle and happened serious shaking, pilot can’t adjust the balance and find the horizon immediately, that might cause aircraft do not restores flight attitudes in right position. In the same way, when aircraft night operating over the ocean, both ocean and dark sky has glisten, it is can’t easily to tell ocean from dark sky. that might cause the aircraft accident like errant flight or crashed into ocean, those accidents were frequently happened at beginning of aviation’ growth. Thus, through the tracking of flight attitudes can make sure the aircraft flight in right direction and safety.","PeriodicalId":246485,"journal":{"name":"2019 IEEE THE 2nd INTERNATIONAL CONFERENCE ON MICRO/NANO SENSORS for AI, HEALTHCARE, AND ROBOTICS (NSENS)","volume":"5 1-2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129779763","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 : 2019-10-31DOI: 10.1109/nsens49395.2019.9293964
H. Xia, X. Dong, S. Cheng, J. Wu, G. Ding, G. Liu, X. Li
Various types of ultrasound transducers have been developed and widely used in biomedical science and industrial testing applications. However, conventional ultrasound transducer is incapable for broad bandwidth ultrasound which provides high spatial resolution imaging. In addition, conventional ultrasound transducers are PZT transducers, which means that these transducers suffer from electromagnetic interference (EMI) in electronically harsh environments. In this study, a Laser induced ultrasonic transducer (LIUT) based on optoacoustic effect is proposed to demonstrate its capability for medical imaging of a gel phantoms. First, the multi-physical field coupling method of electromagnetic-solid-ultrasonic field is deduced, and the ultrasonic field characteristic of LIUT is simulated. And then the LIUT was fabrication by coating the carbon black(CB)-polydimethylsiloxane (PDMS) based polymer composite on the substrate. The characteristics of sound field are verified by experiment and simulation. The amplitude and -6 dB frequency bandwidth of the generated ultrasound were measured to be 2.5MPa and 8MHz, respectively. Finaly, the presented LIUT was applied for magneto-acousto-electrical tomography (MAET) based on ultrasound excitation.
{"title":"Laser induced ultrasonic transducer and its application in Magneto-acousto-electrical tomography","authors":"H. Xia, X. Dong, S. Cheng, J. Wu, G. Ding, G. Liu, X. Li","doi":"10.1109/nsens49395.2019.9293964","DOIUrl":"https://doi.org/10.1109/nsens49395.2019.9293964","url":null,"abstract":"Various types of ultrasound transducers have been developed and widely used in biomedical science and industrial testing applications. However, conventional ultrasound transducer is incapable for broad bandwidth ultrasound which provides high spatial resolution imaging. In addition, conventional ultrasound transducers are PZT transducers, which means that these transducers suffer from electromagnetic interference (EMI) in electronically harsh environments. In this study, a Laser induced ultrasonic transducer (LIUT) based on optoacoustic effect is proposed to demonstrate its capability for medical imaging of a gel phantoms. First, the multi-physical field coupling method of electromagnetic-solid-ultrasonic field is deduced, and the ultrasonic field characteristic of LIUT is simulated. And then the LIUT was fabrication by coating the carbon black(CB)-polydimethylsiloxane (PDMS) based polymer composite on the substrate. The characteristics of sound field are verified by experiment and simulation. The amplitude and -6 dB frequency bandwidth of the generated ultrasound were measured to be 2.5MPa and 8MHz, respectively. Finaly, the presented LIUT was applied for magneto-acousto-electrical tomography (MAET) based on ultrasound excitation.","PeriodicalId":246485,"journal":{"name":"2019 IEEE THE 2nd INTERNATIONAL CONFERENCE ON MICRO/NANO SENSORS for AI, HEALTHCARE, AND ROBOTICS (NSENS)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131811774","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 : 2019-10-31DOI: 10.1109/NSENS49395.2019.9293950
Chengchun Shien, Changzheng Huang, Jiayi Liu, Xi Chen, Uche Weijinya, G. Shi
In recent years, autonomous driving technology has risen. Accurate positioning is an important part of self-driving cars. Global positioning system (GPS) and inertial navigation system (INS) are two commonly used navigation systems. Because GPS signals are easy to be interfered and IMU is easy to accumulate errors, they usually overcome each other’s shortcomings through Kalman filtering. The error model of the two systems is established. And add a speedometer to the system. Using extended Kalman filter (EKF) to build GPS/INS/ odometer/integrated navigation system is a practical data fusion method. This paper proposes a GPS/INS/ odometer integrated navigation system, which can provide accurate location and azimuth information. It meets the requirements of autonomous vehicle navigation. The experimental results show that the odometer can effectively assist the IMU even when the GPS signal is not available, and the algorithm is stable and reliable. The feasibility and effectiveness of the algorithm are verified by field test.
{"title":"Integrated navigation accuracy improvement algorithm based on multi-sensor fusion","authors":"Chengchun Shien, Changzheng Huang, Jiayi Liu, Xi Chen, Uche Weijinya, G. Shi","doi":"10.1109/NSENS49395.2019.9293950","DOIUrl":"https://doi.org/10.1109/NSENS49395.2019.9293950","url":null,"abstract":"In recent years, autonomous driving technology has risen. Accurate positioning is an important part of self-driving cars. Global positioning system (GPS) and inertial navigation system (INS) are two commonly used navigation systems. Because GPS signals are easy to be interfered and IMU is easy to accumulate errors, they usually overcome each other’s shortcomings through Kalman filtering. The error model of the two systems is established. And add a speedometer to the system. Using extended Kalman filter (EKF) to build GPS/INS/ odometer/integrated navigation system is a practical data fusion method. This paper proposes a GPS/INS/ odometer integrated navigation system, which can provide accurate location and azimuth information. It meets the requirements of autonomous vehicle navigation. The experimental results show that the odometer can effectively assist the IMU even when the GPS signal is not available, and the algorithm is stable and reliable. The feasibility and effectiveness of the algorithm are verified by field test.","PeriodicalId":246485,"journal":{"name":"2019 IEEE THE 2nd INTERNATIONAL CONFERENCE ON MICRO/NANO SENSORS for AI, HEALTHCARE, AND ROBOTICS (NSENS)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126095306","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 : 2019-10-31DOI: 10.1109/NSENS49395.2019.9293989
Yixin Chen, Wenying Qiu, Xiaohao Wang, Min Zhang
A tactile rendering system for fabric textures is presented to improve the tactile sensations in humancomputer interactions in this paper. A tactile platform based on electrovibration is constructed to produce the virtual tactile sensation. The voltage amplitude perception threshold and differential threshold of human beings on the system are measured by a series of experiments. On this basis, the relationship between the stimulus signal and tactile perception is established using psychophysical experiments. A texture library of fabrics is then created by using a surface morphology analyzer. The amplitude of the corresponding voltage for rendering textures can be calculated according to the established relationship between the stimulus signal and tactile perception. As a new fabric texture image is input to the system, convolutional neural network (CNN) is used to match the texture with the texture library and then the corresponding stimulus signal can be generated. The above system is finally evaluated and numerically quantified through experiments.
{"title":"Tactile Rendering of Fabric Textures Based on Texture Recognition","authors":"Yixin Chen, Wenying Qiu, Xiaohao Wang, Min Zhang","doi":"10.1109/NSENS49395.2019.9293989","DOIUrl":"https://doi.org/10.1109/NSENS49395.2019.9293989","url":null,"abstract":"A tactile rendering system for fabric textures is presented to improve the tactile sensations in humancomputer interactions in this paper. A tactile platform based on electrovibration is constructed to produce the virtual tactile sensation. The voltage amplitude perception threshold and differential threshold of human beings on the system are measured by a series of experiments. On this basis, the relationship between the stimulus signal and tactile perception is established using psychophysical experiments. A texture library of fabrics is then created by using a surface morphology analyzer. The amplitude of the corresponding voltage for rendering textures can be calculated according to the established relationship between the stimulus signal and tactile perception. As a new fabric texture image is input to the system, convolutional neural network (CNN) is used to match the texture with the texture library and then the corresponding stimulus signal can be generated. The above system is finally evaluated and numerically quantified through experiments.","PeriodicalId":246485,"journal":{"name":"2019 IEEE THE 2nd INTERNATIONAL CONFERENCE ON MICRO/NANO SENSORS for AI, HEALTHCARE, AND ROBOTICS (NSENS)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116954773","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 : 2019-10-31DOI: 10.1109/NSENS49395.2019.9293957
Xiaodong Geng, Xinan Wang, Guang Luo, Changzheng Huang, Xi Chen, U. Wejinya, G. Shi
MEMS inertial device has low measurement accuracy and poor anti-interference ability. The error of MEMS sensor accumulates over time, which cannot meet the requirement of attitude measurement for a long time. Therefore, in order to improve the accuracy of the MEMS sensor attitude measurement system, this article uses accelerometers and gyroscopes as the basic devices to design an attitude resolution algorithm. By establishing the carrier attitude measurement model, the output of the accelerometer and gyroscope is used to design the Kalman filter. The algorithm updates the time by the accelerometer output and the angular velocity of the carrier, and updates the measured value by the angular velocity of the carrier itself. Experiments show that the algorithm can suppress the drift error of MEMS gyroscope, improve the robustness of MEMS attitude measurement system, and improve the system accuracy.
{"title":"Carrier Dynamic Attitude Estimation Algorithm Based on MEMS Inertial Sensor","authors":"Xiaodong Geng, Xinan Wang, Guang Luo, Changzheng Huang, Xi Chen, U. Wejinya, G. Shi","doi":"10.1109/NSENS49395.2019.9293957","DOIUrl":"https://doi.org/10.1109/NSENS49395.2019.9293957","url":null,"abstract":"MEMS inertial device has low measurement accuracy and poor anti-interference ability. The error of MEMS sensor accumulates over time, which cannot meet the requirement of attitude measurement for a long time. Therefore, in order to improve the accuracy of the MEMS sensor attitude measurement system, this article uses accelerometers and gyroscopes as the basic devices to design an attitude resolution algorithm. By establishing the carrier attitude measurement model, the output of the accelerometer and gyroscope is used to design the Kalman filter. The algorithm updates the time by the accelerometer output and the angular velocity of the carrier, and updates the measured value by the angular velocity of the carrier itself. Experiments show that the algorithm can suppress the drift error of MEMS gyroscope, improve the robustness of MEMS attitude measurement system, and improve the system accuracy.","PeriodicalId":246485,"journal":{"name":"2019 IEEE THE 2nd INTERNATIONAL CONFERENCE ON MICRO/NANO SENSORS for AI, HEALTHCARE, AND ROBOTICS (NSENS)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127141655","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 : 2019-10-31DOI: 10.1109/NSENS49395.2019.9293961
Qingqing Cao, Changcheng Wu, Guizhen Feng, Qin Wang
This paper has researched the influence of the probability distribution of all the random bounded communication links delays on the global error of clock synchronization for the least square estimation based time synchronization algorithm (LSTS) over wireless sensor networks (WSNs). First we have presented the large influence of the probability distribution of random bounded communication delays on the global error of clock synchronization under the general condition of communication in WSNs. Then the information of round-trip delays has been introduced to compensate the clock offset in order to decrease the global error of clock synchronization based on the fact that all the round-trip delays between each pair of sensor nodes can be accurately measured. The characteristics of the round-trip delay are analyzed in the case of bidirectional communication between sensor nodes. The clock offset is compensated by the round-trip delay, and the attenuation factor in the consistency theory is introduced. The combined control can greatly decrease the expectation of the global error, the variance of which is also reduced moderately at the same time. Meanwhile the adjusting amplitude of the clock offset also drops sharply. Finally it has shown that the global error of clock skew compensation is mostly determined by the variance rather than the expectation of random communication delays through simulations for the improved algorithm, while the global steady-state error is largely decided by the expectation of random communication delays.
{"title":"Clock Synchronization for LSTS Algorithm with Random Communication Delays over Wireless Sensor Networks","authors":"Qingqing Cao, Changcheng Wu, Guizhen Feng, Qin Wang","doi":"10.1109/NSENS49395.2019.9293961","DOIUrl":"https://doi.org/10.1109/NSENS49395.2019.9293961","url":null,"abstract":"This paper has researched the influence of the probability distribution of all the random bounded communication links delays on the global error of clock synchronization for the least square estimation based time synchronization algorithm (LSTS) over wireless sensor networks (WSNs). First we have presented the large influence of the probability distribution of random bounded communication delays on the global error of clock synchronization under the general condition of communication in WSNs. Then the information of round-trip delays has been introduced to compensate the clock offset in order to decrease the global error of clock synchronization based on the fact that all the round-trip delays between each pair of sensor nodes can be accurately measured. The characteristics of the round-trip delay are analyzed in the case of bidirectional communication between sensor nodes. The clock offset is compensated by the round-trip delay, and the attenuation factor in the consistency theory is introduced. The combined control can greatly decrease the expectation of the global error, the variance of which is also reduced moderately at the same time. Meanwhile the adjusting amplitude of the clock offset also drops sharply. Finally it has shown that the global error of clock skew compensation is mostly determined by the variance rather than the expectation of random communication delays through simulations for the improved algorithm, while the global steady-state error is largely decided by the expectation of random communication delays.","PeriodicalId":246485,"journal":{"name":"2019 IEEE THE 2nd INTERNATIONAL CONFERENCE ON MICRO/NANO SENSORS for AI, HEALTHCARE, AND ROBOTICS (NSENS)","volume":"2020 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131156620","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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