Author: iot-en (page 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…

I believe that everyone often hears the terms router and firewall. It is estimated that most people know more about routers and less about firewalls. It can also be said that the knowledge about firewalls is relatively vague. Let’s talk…

In the Internet of Things, short-distance wireless communication technology is constantly developing and innovating. Short-distance wireless communication technology is mainly divided into two categories. One is LPWAN (low-power Wide-Area Network, low-power wide area network), which is often called 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…