Agricultural Internet of Things information transmission method

Agricultural Internet of Things information transmission method

Agricultural Internet of Things information transmission methods are mainly divided into wired and wireless communication. Common wired communication technology include power carrier, fiber optic communication, on -site bus technology, program -controlled exchange technology, etc.

Wireless communications include radio frequency communication technology, frequency adjustment communication technology, Bluetooth, and general group wireless services (GPRS), 2G/3G/4G/5G, ZigBee, etc.

With the development of modern communication technology, more and more new key communication technologies and networking models are applied to the Internet of Things scenarios, and they have gradually made breakthroughs in communication bandwidth, communication rate, and networking efficiency.

1. 5G communication technology

As an emerging communication method, 5G has improved the significant improvement of system performance by improving its system structure. Compared with 4G technology, the data traffic of 5G communication has increased by 1,000 times, the number of networking devices has expanded by 100 times, the peak rate is more than 10 GB/s, and the user can obtain a rate of 10 mb/s. , High spectrum utilization rate and low network energy consumption.

5G communication technology provides information transmission guarantee for real -time acquisition and scene model building models for modern agricultural large -capacity data, and provides technical guarantee for future machine substitutions and intelligent management of agricultural production.

2. long -distance radio (Long Range Radio, LORA) technology

LoRa technology is a technology released by the US SEMECH company for radio modulation and demodulation.

With the continuous development of the Internet of Things technology, the emergence of low -power Wide Wide Area Network (LPWAN) access technology meets the needs of long -distance devices.

The LPWAN technology adopts a star network coverage. It timely correct the error code in the process of data transmission during the receiving end. The channel conflict detection mechanism is used to solve the problem of concurrent node data and packet loss, which greatly improves the robustness of the network.

Compared with the traditional Agricultural Internet of Things ZigBee technology, its information transmission capacity and stability have been greatly improved. It has the advantages of long transmission distance, low power consumption, and low cost. It is suitable for the application scenarios that transmit a small amount of data.

3.Narrow Band-Internet of Things, NB-IoT technology

NB-IoT is a kind of narrow-band radio frequency technology designed for the Internet of Things. It is favored by the advantages of low power consumption, stable connection, low cost, and excellent architecture optimization.

It focuses on low power consumption and wide -coverage of the Internet of Things market. It uses the License frequency band. It can adopt three deployment methods such as internal, protective bands or independent carriers, and can be upgraded smoothly with existing networks. The NB-IoT network consists of terminals, base stations, core networks, machine-to-machine (M2M) platforms and operating support systems.

NB-IoT simplifies the signaling, and has a core network control device with different integrated mobile solutions (IMS)/evolutionary packet core network (EPC).

NB-IoT technology has effectively solved the problem of high farm information transmission costs and high energy consumption. It is an important means for the transmission of information transmission of the Internet of Things.