Potentially prompt and compact method for near field analyses both in the real and wavenumber spaces have been applied successfully to RF emissions from a commercially available onboard bluetooth module. The new metho...
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ISBN:
(纸本)9782874870439
Potentially prompt and compact method for near field analyses both in the real and wavenumber spaces have been applied successfully to RF emissions from a commercially available onboard bluetooth module. The new method is based on real-time images of near electric field, acquired and displayed by the live electrooptic imaging technique in the asynchronous operation mode. Such near-field features of the module have been clarified as precise location of emission origin, geometries of wave fronts, distribution of wave-vectors, and angular dependence of emission power.
Wearable sensors and electronic devices have gained a lot of attention during the last few years. The advances in low power wearable gadgets have the research venue in the field of energy harvesting to exclude or supp...
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Wearable sensors and electronic devices have gained a lot of attention during the last few years. The advances in low power wearable gadgets have the research venue in the field of energy harvesting to exclude or supplement the battery's power. Solar energy harvesting is a suitable source to power wearable gadgets. This work presents a wearable solar energy harvesting based jacket that can power the in-situ vital health monitoring system (VHMS). The developed VHMS comprised of sensors to measure several data and transferred through various modules every 3 min with an emergency alert option. To integrate the Solar Energy harvester (SEH) and VHMS, a novel maximum power point tracking is designed, fabricated and tested to compensate the battery during diffused light as power is recorded to be as low as 7.95 x 10(-5) mW at an optimal load of 10 k omega . Ten flexible solar cells (each 146 mmx 167.5 mm in size) placed each inside a transparent pouch stitched to a jacket. An individual and series configuration of all solar cells is tested in-lab and outside in real environment under different illuminance and irradiance. At an optimal load resistance of 1.5 $ k omega, the developed self-powered, smart jacket is capable to generate a voltage of 45 V and power of 1282.57 mW, under lights' illuminance of 41000 lux and irradiance of 780 W/m(2). The proposed SEH has been validated through a prototype system. Its performance compares favorably against various solar energy harvester for wearable sensors based on size, power, modes to communicate and sensors.
A novel Internet of Things (IoT) -enabled system is presented to improve the usability and accessibility of audio playback for those with visual impairments. To enable a simple and hands-free experience, the system us...
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The idea behind choosing the model military spy bot is for the safety monitoring and surveillance of human activities in the war prone zones or in the geographical borders with the aim of reducing infiltrations from t...
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This robot's job is to help stop the transmission of germs in airports, hospitals, public transportation, and other confined spaces. Using UVC light as an agent, this robot used the physical disinfection approach....
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Internet of Things-based restaurant menu ordering systems have gained popularity in recent years because they provide customers with a convenient way to browse the menu and make orders without having to wait in the qu...
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Electrical heated clothing (EHC) is a revolutionary concept that combines garment with electrical technology to create garments capable of actively regulating and providing warmth to the wearer, especially for the eld...
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Electrical heated clothing (EHC) is a revolutionary concept that combines garment with electrical technology to create garments capable of actively regulating and providing warmth to the wearer, especially for the elderly. To develop an EHC for the elderly with both aesthetics and functionality, the technique of knitted Jacquard is employed for fabrics and bluetooth module is applied to realize user interaction (UI) design. Firstly, 16 different heated fabrics were fabricated by choosing different silver-coated yarns and knitted Jacquard patterns. The heating temperatures of the fabrics were simulated, and the actual heating performance was observed through infrared thermal image. Suitable materials and patterns were selected to produce the EHC. Secondly, in order to meet the demands for the elderly, a prototype was developed by combining the characteristics of the elderly clothing design and UI design. After the design of a bluetooth module with a PCBA, the heating temperature and heating time of the clothing can be adjusted through the WeChat mini-program on the mobile phone. It has been verified that the developed prototype meets the heating requirements. This study can serve as an excellent guide for the advancement of EHC and electrical wearables.
This paper put forward an ID calibration device for vehicle tire pressure monitoring system. The device uses bluetooth module to read commands from the intelligent terminal, and orders the vehicle tire pressure receiv...
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This paper describes smart dispenser system for automatically dispensing the ingredients for cooking machine using VL53LOX sensor on the cap of the dispensing jar and a piezoelectric polymer gasket sheet at the bottom...
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This article presents an automatic irrigation system using multi-sensors functionalities (temperature and moisture) and Arduino MEGA 2560 associated with a mobile monitoring system. This project aims to sense moisture...
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ISBN:
(纸本)9781665403382
This article presents an automatic irrigation system using multi-sensors functionalities (temperature and moisture) and Arduino MEGA 2560 associated with a mobile monitoring system. This project aims to sense moisture and temperature levels based on the variant algorithm-based related to soil type. Subsequently, the automated pumping system turns ON and OFF the actuator (water pump) as feedback on the plant water need. The devices have been installed successfully to monitor large scale farms of Management and Science University, Shah Alam, Selangor, Malaysia. By implementing this system, water usage consumption was reduced significantly, and the required labor works were maintained. Furthermore, the provided mobile application allows the users to monitor and manually control if the case is needed.
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