Скачать "Octavian Adrian Postolache, Edward Sazonov, Subhas Chandra Mukhopadhyay - Sensors in the Age of the Internet of Things: Technologies and applications" бесплатно

    Название:   Sensors in the Age of the Internet of Things: Technologies and applications
    Автор:   Octavian Adrian Postolache, Edward Sazonov, Subhas Chandra Mukhopadhyay
    Формат:   PDF
    Размер:   14.7 MB
    Год:   2019
    Качество:   Отличное
    Язык:   Английский
    Страниц:   320
    ISBN:   178561634X

The IoT is the inter-networking of connected and smart devices, buildings, vehicles and other items which are embedded with electronics, software, sensors, actuators, and network connectivity that enable these objects to collect and exchange data. A sensor is a detection device that measures, records, or responds to a physical property. Sensors represent the front end of information processing. Progress in communication technologies is part of the multi-factorial advances in electronics, sensors, embedded computing, signal processing and machine learning methods that has led to the development of new capabilities in the IoT.

This edited book focuses on the technologies constituting the IoT from a sensor perspective, for an audience of researchers, scientists, engineers and graduate students with an interest in the field. Applications covered include connected sensors for smart cities, energy infrastructure, emergency management, and smart ports.

There is a wide variety of sensors, so to better manage them some type of classification will first be necessary. Then, the main characteristics of the sensors will be defined. Understanding these features will undoubtedly help in selecting the most suitable sensor for IoT applications. Finally, examples of commercial sensors particularly suitable for IoT applications are provided.

In the context of the IoT, sensors are the primary devices required to gather data from the environment and send them to the cloud. Basically, a sensor is a device that converts a physical variable (temperature, pressure, vibration, etc.) from the process or system to a representative electrical signal. Information provided by the sensor can be used to know the value of the stimulus or to control the process or system. The increasingly reduced price of these devices is enabling low-cost IoT developments and extending their application to a wide range of applications.

IoT sensors are smart sensors specially designed to fulfil the requirements of IoT applications. The main features of IoT sensors are as follows:

- Ultra-low-power consumption,
- Low cost,
- Ultra-small size,
- Low maintenance,
- Practical and easy-to-use built-in features,
- High performance and
- Pinout compatibility.

The device that performs these functions can be built around a general purpose MCU IC for low-end applications or around a system-on-chip (SoC) integrating a specifically designed applications processor for high-end applications.