The connotation of the Internet of Things and smart agriculture is combined with the actual situation of agricultural intelligent production to design the smart agricultural Internet of Things architecture, which mainly includes the Internet of Things perception layer, the Internet of Things network layer and

In 2015, 3G networks matured, 4G networks developed rapidly, and 2G network business volume and utilization ratio continued to decline. Global operators began to gradually shut down 2G networks and promote the evolution of LTE module /M2M module formats to 4G to improve spectrum utilization

my country is a major agricultural country, and the advantages of traditional agriculture in the international market mainly rely on abundant natural resources and low labor costs. With the development of high technologies such as the Internet of Things, my country’s traditional agriculture is accelerating

The system uses 4G data transmission module, DHT11 temperature and humidity collection sensor and STM32 microprocessor to design a data collection and transmission system based on 4G transmission module. The data acquisition terminal collects the temperature and humidity in the environment, connects to the RS485

The international standardization organizations IEEE and IETF are working together to develop a highly reliable, low-power wireless communication protocol stack for the Internet of Things that can access the Internet. IEEE is mainly responsible for formulating standards for the physical layer and link layer of

4g dtu transparent transmission module The 4G DTU transparent transmission module developed by Chengdu Zongheng Intelligent Control is a product that supports two-way transparent transmission. Users do not need to care about complex protocols. The product is two-way transparent transmission and only requires simple configuration.

The development of wireless communication technology so far can be basically summarized into five stages. The first stage: early stage of dedicated mobile communications. It was the first to develop a dedicated mobile communication system in the shortwave frequency band. Its most representative application is

4g module dtu overview: Product model: ZHC401C is a 4G wireless data transmission module based on China Mobile, Telecom, and China Unicom networks, providing a two-way transparent transmission channel. Compatible with Modbus RTU/TCP protocol. With “remote control” as the core function and high ease of

Introduction to 4g router Based on the embedded Linux system, a wireless 4g router that uses WiFi technology to share 4G bandwidth is designed and implemented. The router supports UMTS/GSM/CDMA and TDD/FDD-LTE network standards, achieving compatibility with various 3G/4G network standards. After introducing the design

Introduction to rs485 communication module The rs485 communication module developed by Chengdu Zongheng Charge is also known as 4g dtu, 4g module and 4g transmission terminal. This product provides an RS485 interface, which can collect sensor or instrument data through RS485, and transmit the data

Wireless communication modules enable various types of terminal equipment to have the ability to transmit networked information. As the underlying hardware, they are irreplaceable and are a key link in connecting the perception layer and network layer of the Internet of Things. Based on the

DTU DTU is the abbreviation of Data Terminal Unit. Broadly speaking, when communicating, both ends of the link that transmits data. The module units responsible for sending data information are called DTU. Under its function, the format conversion and data collation and verification of the