Autore: iot-it (pagina 123)

Classification of cloud computing With the continuous development of network technology, cloud computing has become one of the emerging computer technologies in recent years. So what exactly is cloud computing? Simply put, cloud computing technology can process tens of thousands…

Credo che tutti sentano spesso i termini router e firewall. Si stima che la maggior parte delle persone conosca più i router e meno i firewall. Si può anche dire che le conoscenze sui firewall sono relativamente vaghe. Parliamo...

Nell'Internet degli oggetti, la tecnologia di comunicazione wireless a breve distanza è in costante sviluppo e innovazione. La tecnologia di comunicazione wireless a breve distanza si divide principalmente in due categorie. Una è la LPWAN (low-power Wide-Area Network, rete di area vasta a bassa potenza), spesso chiamata Wide area...

The Modbus communication protocol was invented by Modicon in 1979 and is the world’s earliest bus protocol used in industrial fields. Due to its free public release, manufacturers using the protocol do not need to pay any fees, so the…

Internet of things The concept of the Internet of Things was first proposed by the Auto-ID Center of the Massachusetts Institute of Technology in 1999. What is the Internet of Things? All things are connected, allowing objects that cannot communicate…

what is modbus gateway Modbus gateway is a device that can convert Modubs TCP protocol into Modbus RTU protocol. You can understand it this way, it is an industrial router that supports the modbus protocol. I believe you will understand…

Traditional meter reading requires the meter reader to search up and down pages of the meter. Some meters also require professional key operations to query meter data. On average, each meter requires 1 to 2 minutes of meter reading time.…

ZHC4014 is a data transmission device specially used for collecting electricity meters and water meters, and has the function of collecting data and transmitting. One device can collect 30~40 electricity meters/water meters. This product adopts guide rail installation, which can…

In the Internet of Things, networking solutions are determined according to different application scenarios. Here are several typical networking solutions. 1. One-way networking One-way networking is to send the collected data to the server in one direction through the DTU…

The three major characteristics of the Internet of Things are sensing objects, information transmission, and intelligent processing. The general meaning is that the Internet of Things is the Internet where things are connected. This has two meanings: first, the core…

Application of zigbee, zigbee networking solution As a low-speed short-distance wireless communication technology, ZigBee has its own characteristics. Zigbee has the characteristics of low power consumption, short distance, low power consumption, low speed, and flexible networking method, so it is…

There are two main communication methods of PLC, namely parallel communication method and serial communication method. Let’s explain the two communication methods respectively. If you need to know about serial port and parallel port, please read this article “The Difference…