The Internet of Things is connected to embedded systems, which brings together two evolutionary technologies, wireless connectivity and smart sensors. Combining the latest advances in low-power microcontrollers, these new "things" are connected to the Internet easily and cheaply, prompting humans to enter the second industrial revolution.
Connecting an embedded system is a small microcontroller-based computer that does not require interface access, and the system interacts with humans using sensors or other advanced detection mechanisms. Sensors collect data and determine that the data is valuable and form the main part of the system, and the term “Internet of Things†means that these Sensor networks can also be implemented using protocols, such as wireless domains, using WiFi or Ethernet networks. The network or Bluetooth does not have an IP address. The choice of network protocol is based on the distribution of nodes and the amount of data collected. The data is sent to the main center or computer through the network, and then the computer collects and analyzes the data, stores it in memory, and even analyzes the results based on the system decision.
IoT sensor node block diagram, including 802.15.4 wireless, A / D converter, analog front end, battery management, Bluetooth, cloud storage, custom wireless, DC / DC converter, environmental sensors, flash memory, memory modules, microcontroller, RAM Memory, RFID / NFC, photoelectric sensors, power management, smart sensors, video, wireless networks.
These connected embedded systems are independent microcontroller-based computers that use sensors to collect data. The system network is usually connected via a wireless protocol such as WiFi, Bluetooth, 802.11.4 or a custom communication system. The network protocol is node-based. The amount of data distributed and collected.
The key nodes of the modern Internet of Things need to be encrypted with some form of data security, the most common being AES256. This is critical to helping break security. It should be noted that this design is for reference design only and product recommendations, and there is currently no test compatibility and interoperability.
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