What is transparent transmission and point-to-multipoint transmission? What are their classic applications and advantages?

成都亿佰特

What is transparent transmission and point-to-multipoint transmission? What are their classic applications and advantages? [Copy link]

What is

01Transparent transmission

The module is open and transparent to the user . No matter what is transmitted, the device used only acts as a channel .

Transmit the content to be transmitted intact to the other party.

What comes in goes out .

Data passes directly through the interconnect functional mode in the system without RLP error correction .

Don't care about the transmission of the lower layer protocol .

02 Point-to-Many

It means one to several, multiple transmitters correspond to one receiver

Application Solution

In recent years, with the rapid development of radio frequency technology, integrated circuits, automatic control, and wireless data communication technology, wireless transmission technology has been mentioned more and more. The current smart cities, smart agriculture, smart factories, etc. all require the support of wireless transmission technology.

The following mainly introduces several specific applications of point-to-multipoint wireless communications

01 Application in vegetable greenhouses

Preface

In recent years, agricultural greenhouse cultivation has brought great convenience to improve people's living standards and has been rapidly promoted and applied. Environmental factors such as temperature, humidity, light intensity, CO2 concentration in the planting environment have a great impact on crop production. Traditional manual control methods are difficult to achieve the requirements of scientific and reasonable planting .

Features

In view of the current development trend of agricultural greenhouses, in order to realize the automatic monitoring system of the above environmental factors, the most popular Internet of Things technology can be used to achieve:

Real-time remote acquisition of the air temperature and humidity inside the greenhouse ,

Soil moisture temperature ,

Carbon dioxide concentration ,

Light intensity , etc.

Realize automatic control of wet curtain fan ,

Sprinkler drip irrigation ,

Internal and external sunshade ,

Top window, side window ,

Heating and lighting equipment ,

Ensure that the environment in the greenhouse is most suitable for crop growth, create conditions for high-yield, high-quality, high-efficiency, ecological and safe crops , and give full play to the role of Internet of Things technology in facility agricultural production.

Application Solution

This solution is applicable to various types of solar greenhouses, multi-span greenhouses, and smart greenhouses. The network topology is as follows:

02 Application in aquaculture

Preface

my country's aquaculture is transforming from an extensive model to an intensive and industrialized model. Among them, the water quality environment of aquaculture has become the most critical link in intensive aquaculture.

In the past, manual testing and recording were usually used for water quality monitoring. Water quality monitoring is highly random and cannot respond promptly and effectively to known changes. It is easy to miss or misreport major accidents, causing large-scale harm to aquaculture.

Features

With the development of automation technology, automatic monitoring technology of water quality parameters has been developed and applied. Among them, the system that connects to the lower computer through RS485 and CAN bus to realize monitoring is more common, but it still has the defects of being troublesome, high cost and high maintenance.

Application Solution

With the development of wireless communication technology, wireless monitoring methods are increasingly used in aquaculture environment monitoring, and data collection can be achieved using RF, GPRS and other methods. The network topology is as follows

Advantages

Wireless data transmission can be used in any field involving data transmission.

Currently, wireless transmission technology is developing rapidly, there are more and more wireless module manufacturers, and solutions involving public network transmission and private network transmission are emerging in an endless stream.

Compared with public network transmission, private network transmission is increasingly accepted by users.

advantage

First, the investment is small :the wired communication method requires laying cables, consuming material and manpower, renting public network modules, and paying fees, while the private network transmission module establishes a dedicated wireless data transmission method, which only requires connecting wireless data transmission equipment and setting up appropriate antennas. This is particularly evident over long distances and in complex terrains;

Secondly, it is quick to start up :when you want to connect remote sites that are several kilometers or tens of kilometers away to the main site for communication, you must lay long cables or dig long cable trenches using wired methods, and this project cycle may take several months. However, using wireless data transmission equipment to establish dedicated wireless data transmission only requires setting up antennas at appropriate heights, and the project cycle only takes a few days to complete.

Strong adaptability :Wired communication has too many limitations. When encountering some special application environments, such as mountains, lakes, forests, roads, buildings and other special geographical environments, or when encountering application environments where wiring is difficult, such as moving objects, the wiring engineering of the wired network will be strongly restricted. However, the method of establishing dedicated wireless data transmission using wireless data transmission equipment will not be subject to these restrictions.

Finally, the scalability of private network transmission is also relatively strong :after users have established a communication network, they often add new equipment due to system needs. If a wired method is used, rewiring is required, which is troublesome and may damage the original communication line. However, if wireless data transmission equipment is used to establish a dedicated wireless data transmission method, the system can beexpanded by simply connecting the new equipment to the data transmission radio (or WiFi, ZigBee, etc.).

The above is all the content of this article. I hope it is useful to you. Thank you very much for taking the time to come here. Welcome to leave a message in the comment area and continue to pay attention to get more exciting content .

annysky2012

Wireless transmission is convenient and fast, and is mainly used in situations where interference and stability are considered