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Showing posts from June, 2023

Sensor Integration in Smart Cities

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Sensor integration plays a crucial role in the development of smart cities. By deploying various sensors throughout the urban environment, cities can gather real-time data on various aspects of their infrastructure and operations. This data can then be analyzed to gain insights, optimize resource allocation, enhance decision-making, and improve the overall quality of life for residents. Here are some key areas where sensor integration is commonly used in smart cities:                                  Traffic Management: Sensors can be installed at intersections, roadways, and parking lots to monitor traffic flow, detect congestion, and optimize traffic signal timings. This data can be used to implement intelligent transportation systems, improve traffic management, reduce congestion, and enhance road safety. Environmental Monitoring: Sensors can measure air quality, noise levels, temperature, humidity, ...

Energy Harvesting for Self-Powered Sensor Systems

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Energy harvesting for self-powered sensor systems refers to the process of capturing and converting ambient energy from the surrounding environment into electrical energy to power sensors and other electronic devices. It provides an alternative to conventional battery-powered systems, eliminating the need for frequent battery replacements or external power sources. A self-powered system based on energy harvesting technology can be a potential candidate for solving the problem of supplying power to electronic devices. In this review, we focus on portable and wearable self-powered systems, starting with typical energy harvesting technology, and introduce portable and wearable self-powered systems with sensing functions. In addition, we demonstrate the potential of self-powered systems in actuation functions and the development of self-powered systems toward intelligent functions under the support of information processing and artificial intelligence technologies. In recent years, portabl...

sensor fusion for improved sensing performance

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Sensor fusion is the ability to bring together inputs from multiple radars, lidars and cameras to form a single model or image of the environment around a vehicle. The resulting model is more accurate because it balances the strengths of the different sensors. Each sensor type, or “modality,” has inherent strengths and weaknesses. Radars are very strong at accurately determining distance and speed — even in challenging weather conditions — but can’t read street signs or “see” the color of a stoplight. Cameras do very well reading signs or classifying objects, such as pedestrians, bicyclists or other vehicles. However, they can easily be blinded by dirt, sun, rain, snow or darkness. Lidars can accurately detect objects, but they don’t have the range or affordability of cameras or radar. Sensor fusion brings the data from each of these sensor types together, using software algorithms to provide the most comprehensive, and therefore accurate, environmental model possible. It can also corr...

Wearable Sensor Technology for Health Monitoring

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Wearable sensor-based health monitoring systems may comprise different types of flexible sensors that can be integrated into textile fiber, clothes, and elastic bands or directly attached to the human body. Life expectancy in most countries has been increasing continually over the several few decades thanks to significant improvements in medicine, public health, as well as personal and environmental hygiene. However, increased life expectancy combined with falling birth rates are expected to engender a large aging demographic in the near future that would impose significant burdens on the socio-economic structure of these countries. Therefore, it is essential to develop cost-effective, easy-to-use systems for the sake of elderly healthcare and well-being. Remote health monitoring, based on non-invasive and wearable sensors, actuators and modern communication and information technologies offers an efficient and cost-effective solution that allows the elderly to continue to live in thei...

Environmental Monitoring with Sensor Technology

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What are environmental sensors? Environmental sensors are a series of sensors that monitor the environment and identify the quality of the environment. Environmental sensors include: soil sensors, temperature and humidity sensors, gas sensors, rainfall sensors, light sensors, wind speed and direction sensors, etc. Due to the different places of environmental monitoring, there are various types of environmental sensors. Accuracy, sensitivity, and price are all factors to consider when choosing an environmental sensor. In order to help you choose the right environmental sensor, we divide environmental sensors into the following 10 types according to different measurement elements. Temperature and humidity monitoring is the most basic component of environmental sensors. The temperature and humidity in the environment not only affect agricultural production and animal husbandry, but are also important to human health. If the temperature and humidity in the environment are too high or too l...

What are MEMS Sensors, Types, Applications

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  In this tutorial, we will learn about an interesting technology called MEMS. We will see some basic concepts of MEMs and also take a look at the applications of MEMS in the form of MEMS Sensors. We will also learn about different types of MEMS Sensors and some of the current applications. What is MEMS MEMS is short for Micro Electro Mechanical Systems. It is a technology associated with manufacturing of microscale devices like Sensors, Transducers, Actuators, Gears, Pumps, Switches etc. In other words, MEMS are microscopic integrated devices that are a combination of electronics, electrical and mechanical elements, all working together for a single functional requirement using a technology called Microsystems Technology (MST). The MEMS technology is considered to be an extended form of traditional integrated circuit (IC) manufacturing. The main difference between the traditional IC Manufacturing technology (VLSI) and MEMS is that using MEMS you can not only fabricate electrical c...

Bluetooth Low Energy

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  Bluetooth Low Energy  ( Bluetooth LE , colloquially  BLE , formerly marketed as  Bluetooth Smart [1] ) is a  wireless personal area network  technology designed and marketed by the  Bluetooth Special Interest Group  (Bluetooth SIG) [2]  aimed at novel applications in the healthcare,  fitness ,  beacons , [3]  security, and home entertainment industries. [4]  It is independent of classic  Bluetooth [ clarification needed ]  and has no compatibility, but Bluetooth Basic Rate/Enhanced Data Rate (BR/EDR) and LE can coexist. The original specification was developed by  Nokia  in 2006 under the name Wibree, [5]  which was integrated into Bluetooth 4.0 in December 2009 as Bluetooth Low Energy. Compared to  Classic Bluetooth , Bluetooth Low Energy is intended to provide considerably reduced power consumption and cost while maintaining a  similar communication range . Mobile operating systems in...