Introduction to LoRa Technology

LoRa technology is a low-power, long-distance wireless transmission technology based on spread spectrum technology. The emergence of LoRa technology solves the requirements of long-distance and low-power consumption in IoT technology. LoRa is actually one of many LPWAN communication technologies, which was first adopted and promoted by Semtech in the United States. This solution provides users with a simple means of long-distance, low-power wireless communication. At present, LoRa devices mainly operate in the ISM frequency band, mainly including 433, 868, 915 MHz, etc.

Introduction to LoRa Gateway

LoRa gateway, also known as LoRa wireless data concentrator, is a 4G DTU gateway device that uses LoRa modulation technology + 4G technology to achieve multiple transmissions and one reception, and data uploading to the cloud. The LoRa data transmission module plus the LoRa DTU gateway constitute a LoRa star data transmission network.

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Comparison of Zigbee gateway, LoRa gateway and Bluetooth gateway

LoRa gateway: an information bridge between a terminal and a server

The LoRa gateway is located at the core of the LoRa star network. It is the transfer station for information between the LoRa data transmission module and the server. It is responsible for collecting the data collected by the LoRa data transmission module group, and then using the 4G network to transmit the data to the server 4G DTU device. The LoRa gateway is combined with the LoRa data transmission node module to encrypt the data for transparent data transmission, without changing the original agreement of the customer, and realizing the full link of the data transmission module to the cloud.

EBYTE  E90-DTU LoRa to 4G wireless gateway solves the problem of customers having multiple transmissions and one reception, no network coverage but needing to upload data to the server, and 485 wiring difficulties. The network is convenient and fast, and the transmission distance can reach 10KM.

LoRa to 4G DTU gateway system composition

1. Built-in LoRa data transmission module

The built-in data transmission module is consistent with the frequency band of the external module. The E90-DTU (40SL30-4G) lora data transmission radio is an E22-400T30S wireless data transmission module with a 433M frequency band, which can communicate with any power data transmission module of the E22 series 433M frequency band.

2. Built-in single-chip microcomputer,

No need to add other equipment, automatically realize the conversion between ModBus RTU and ModBus TCP protocols (equivalent to a serial port server)

3. Built-in core 4G module

No need for 4G devices, the converted data can be directly transmitted from local to cloud.

Basic functions of LoRa to 4G DTU gateway

Multiple LoRa nodes send data to the built-in LoRa module of the E90-DTU (400SL30-4G) wireless data transmission radio, and then realize the whole process of LoRa data on the cloud through the built-in 4G module.

LoRa to 4G DTU gateway application scenarios

Transmission via radio frequency in areas without network, and via 4G in areas with network