In smart cities, serial devices act as a bridge between IoT devices and networks by connecting traditional serial devices to modern networks. The following is a detailed description of how serial devices communicate and collaborate with other IoT devices:
Communication and collaboration architecture
1. Device connection
a. Serial device connection
Serial devices connect various traditional devices such as sensors, controllers, meters, etc. through serial interfaces (such as RS-232, RS-485, RS-422, etc.).
b. Network interface connection
Serial devices have Ethernet interfaces or wireless interfaces (such as Wi-Fi, LoRa, NB-IoT, 5G, etc.) to connect serial devices to local area networks or wide area networks to achieve remote data transmission.
2. Data transmission protocol
a. General protocol support
Serial devices support a variety of common serial communication protocols, such as Modbus RTU/TCP, DNP3, BACnet, etc., to meet the needs of different devices and application scenarios.
b. Custom protocol support
For specific application scenarios, the serial port server can also support custom protocols to achieve specific communication requirements through configuration and programming.
3. Data acquisition and processing
a. Data acquisition
The serial port server collects data from the connected devices, such as sensor measurement data, controller status information, etc.
b. Data processing
Some serial port servers support edge computing functions, which can perform preliminary processing and analysis of data locally, reduce network transmission load, and improve response speed.
4. Data transmission and storage
a. Real-time data transmission
The serial port server transmits the collected data to the background system or cloud platform in real time through the network, supporting remote monitoring and management.
b. Data storage and backup
The serial port server can store data in local storage, or upload data to cloud storage regularly to ensure data security and reliability.
5. Remote management and control
a. Remote monitoring
The management center can remotely monitor the operating status and data of connected devices through the serial port server to achieve centralized management.
b. Remote control
The management center can send control instructions to connected devices through the serial port server to achieve remote operation and management of devices.
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