As an execution amplification and expansion component of signal output, the intermediate relay plays an important role in the automatic control system. According to the regulations of the equipment periodic inspection system, necessary inspections and tests should be carried out regularly on the working status

With the continuous development and maturity of sensors, wireless data transmission equipment, and application solutions, they are also constantly promoting the development of industrial applications, smart homes, smart security, smart transportation, smart environmental protection, smart agriculture and other industries; recently, many foreign apparel companies have

We should all know about antennas. Any radio communication system is inseparable from the composition of antennas. We all know that antennas are used to radiate and receive electromagnetic waves. Antennas can make a wireless transceiver device receive and transmit stronger signals. What principle is

What is a VPN? VPN (Virtual Private Network) is a well-known abbreviation among regular Internet users. Initially, VPNs were used in enterprises to connect networks securely. Currently, VPN is used by the industrial IoT industry to encrypt data transmission environments. For example, industrial routers generally

Industrial routers generally have higher stability than civilian wireless routers on the market, and they need to adapt to continuous operation in harsh weather conditions, and the cost is also higher. Nowadays, they are widely used in M2M industries in the Internet of Things industry

We have analyzed the factors that affect the antenna transmission distance before. In fact, the antenna gain also has a very large impact on the transmission distance. So, is the higher the antenna gain, the better? Once you understand the concept of gain and the

With the continuous development of electronics, oscillator circuits have been widely used in various instruments and equipment as an extremely useful functional circuit, and then entered various fields such as wireless communications. Today, we will talk about the 555 oscillator using an LED flash circuit

The radio frequency signal amplifier (RF PA) is an important part of the transmission system, and its importance is obvious. What is a radio frequency signal amplifier? The following gives us a brief introduction to the concept of RF signal amplifiers and the classification of

LoRa must be familiar to everyone. It is an ultra-long-distance wireless transmission scheme based on spread spectrum technology developed by the American company Semtech. Because of its unique modulation method, it has special features of low power consumption, long distance and high flexibility. , so

Coal has always been the main energy source in China, and coal mine geological monitoring is an important guarantee for safe production in coal mines. Distributed optical fiber sensing technology has the advantages of continuous sensing points, high precision, anti-electromagnetic interference, corrosion resistance, etc., and

Agriculture is the foundation of my country’s economic development. With the continuous advancement of social productivity levels and science and technology, traditional agriculture can no longer meet the requirements of modern industry, life and ecological balance. As a new industrial form, smart farms have attracted

In response to the problem that satellite positioning cannot be used in indoor environments, there are many different indoor positioning technologies on the market. Common indoor wireless positioning technologies include: Wi-Fi, Bluetooth, infrared, ultra-wideband, RFID, ZigBee, etc. Bluetooth is a short-range and low-power wireless transmission