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April 26, 2020 Things evolved technology: Wi-Fi and smart sensors

Things connected embedded systems, which brings together two evolutionary technology, namely wireless connectivity and smart sensors. Combines the latest advances in low-power microcontroller, the new “thing” to be connected to the Internet easier and cheaper, prompting humanity into a second industrial revolution.

An embedded system is connected to a small microcontroller-based computer, no interface to access the system using sensors to interact with humans or other advanced detection mechanisms. Collect data from the sensors and determines the data is valuable, form an integral part of the system, and the “things” the word means these sensor networks, by using WiFi or Ethernet network, or you can use the implementation of the agreement, such as a wireless personal area or a Bluetooth network without IP address. Select the network protocol is based on the amount of data distribution and collection of nodes, data is sent to the host computer via a network or the center, and then the computer to collect and analyze data in memory, and even analysis of the results of its decision-making system storage.

A block diagram of a sensor node things, including 802.15.4 wireless, A / D converter, analog front end, battery management, Bluetooth, cloud storage, custom wireless, DC / DC converters, environmental sensors, flash, memory modules, microcontroller, RAM memory, RFID / NFC, photoelectric sensors, power management, intelligent sensors, video, wireless network.

These embedded systems are connected to a separate microcontroller-based computer uses sensors to collect data, usually via a system network with wireless protocols such as WiFi, Bluetooth, 802.11.4 communication system or a custom, select the network protocol is based on a node distribution and volume of data collected.

Modern critical nodes of things need some form of data security and encryption, the most common is AES256. This helps to break security is essential, it should be noted that this design is for reference design and product recommendations, there is no test for compatibility and interoperability.

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