IoT is extensively used in everyday object and its popularity is increasing day by day. In this paper it includes the design and development of an IoT and mobile-based vehicle fuel activities such as real time fuel mo...IoT is extensively used in everyday object and its popularity is increasing day by day. In this paper it includes the design and development of an IoT and mobile-based vehicle fuel activities such as real time fuel monitoring and GPS tracking system. The proposed IoT device measures the amount of fuel by using ultrasonic fuel sensor. When the vehicle tank of fuel reaches a certain level, driver gets notification through mobile application and also searches the nearest pump location for reloading fuel. The proposed system used GPS tracking for showing current location of vehicle and finding nearest pump location.展开更多
The increasingly serious environment pollution has put forward higher and higher requirement for environment monitoring technique,and conventional environment monitoring methods could not satisfy the requirements from...The increasingly serious environment pollution has put forward higher and higher requirement for environment monitoring technique,and conventional environment monitoring methods could not satisfy the requirements from industrial development. Microbial fuel cells( MFCs) could be used for online BOD monitoring,toxicity detection,microbial activity detection and microbial quantity detection,and as power sources for environment monitoring sensors. The technique has the advantages of simple and rapid operation,high sensitivity and good reproducibility,and serve is capable of performing online in-situ monitoring. It is the newest environment monitoring technique,with a broad application prospect. In this paper,the studies and application of MFCs in environment monitoring field were reviewed,and main existing problems were analyzed,so as to provide reference for future study.展开更多
Previously,we had identified the various dynamic mechanisms of a wide range air to fuel ratio sensor operated in the engine exhaust by using the transfer function approach.In this study,we utilized these results to mo...Previously,we had identified the various dynamic mechanisms of a wide range air to fuel ratio sensor operated in the engine exhaust by using the transfer function approach.In this study,we utilized these results to model the real time sensor response to an engine exhaust excursion.In the fitting,we identified a new dynamic mechanism,which was not detected in the previous transfer function study.This new dynamic occurred at the stoichiometric point when the engine changed from rich to lean.This new mechanism involved the depletion of the adsorbed fuel species on the electrode surface by an oxidation process. The dynamics of this effect depends on the ratio of the diffusion flux of the sensor-coating layer to the total adsorbed gas species on the electrode surface.The smaller the ratio is,the slower the dynamic mechanism will be.展开更多
In this study, we fabricated a sapphire based fiber-optic radiation sensor. To evaluate the fiber- optic radiation sensor, we measured the spectrum and intensity of the luminescence generated from the fiber-optic radi...In this study, we fabricated a sapphire based fiber-optic radiation sensor. To evaluate the fiber- optic radiation sensor, we measured the spectrum and intensity of the luminescence generated from the fiber-optic radiation sensor according to the thickness of the PMMA block by irradiation of gamma rays emitted from a Co-60 source. And the result was compared with the value calculated from the formula of Lambert-Beer.展开更多
文摘IoT is extensively used in everyday object and its popularity is increasing day by day. In this paper it includes the design and development of an IoT and mobile-based vehicle fuel activities such as real time fuel monitoring and GPS tracking system. The proposed IoT device measures the amount of fuel by using ultrasonic fuel sensor. When the vehicle tank of fuel reaches a certain level, driver gets notification through mobile application and also searches the nearest pump location for reloading fuel. The proposed system used GPS tracking for showing current location of vehicle and finding nearest pump location.
基金Supported by Shandong Higher Education Institution Science and Technology Plan Project(J16LD03)Natural Science Foundation of Shandong Province(ZR2014EEP009)+1 种基金Doctoral Scientific Research Foundation of Binzhou University(2014Y17)Shandong Key Research and Development Plan(2015GNC111018,2016GSF117021)
文摘The increasingly serious environment pollution has put forward higher and higher requirement for environment monitoring technique,and conventional environment monitoring methods could not satisfy the requirements from industrial development. Microbial fuel cells( MFCs) could be used for online BOD monitoring,toxicity detection,microbial activity detection and microbial quantity detection,and as power sources for environment monitoring sensors. The technique has the advantages of simple and rapid operation,high sensitivity and good reproducibility,and serve is capable of performing online in-situ monitoring. It is the newest environment monitoring technique,with a broad application prospect. In this paper,the studies and application of MFCs in environment monitoring field were reviewed,and main existing problems were analyzed,so as to provide reference for future study.
文摘Previously,we had identified the various dynamic mechanisms of a wide range air to fuel ratio sensor operated in the engine exhaust by using the transfer function approach.In this study,we utilized these results to model the real time sensor response to an engine exhaust excursion.In the fitting,we identified a new dynamic mechanism,which was not detected in the previous transfer function study.This new dynamic occurred at the stoichiometric point when the engine changed from rich to lean.This new mechanism involved the depletion of the adsorbed fuel species on the electrode surface by an oxidation process. The dynamics of this effect depends on the ratio of the diffusion flux of the sensor-coating layer to the total adsorbed gas species on the electrode surface.The smaller the ratio is,the slower the dynamic mechanism will be.
文摘In this study, we fabricated a sapphire based fiber-optic radiation sensor. To evaluate the fiber- optic radiation sensor, we measured the spectrum and intensity of the luminescence generated from the fiber-optic radiation sensor according to the thickness of the PMMA block by irradiation of gamma rays emitted from a Co-60 source. And the result was compared with the value calculated from the formula of Lambert-Beer.
