Multi-protocol gateways can receive and demodulate LoRaWAN packets and upload them to the cloud via the Message Queue Telemetry Transport (MQTT) protocol over NB-IoT. Sensor nodes may be alternatively provided with LoRaWAN or NB-IoT. Such a network accounts for sensor nodes, multi-protocol gateways, an a cloud infrastructure. In this paper, a brand new network architecture is presented, which combines both aforementioned technologies. Currently, two enabling technologies are the main competitors within the connectivity field for the Internet of Things (IoT), primarily because of their scalability, wide range and low power features: Long Range Wide Area Network (LoRaWAN) and Narrowband IoT (NB-IoT). Low Power Wide Area Networks (LPWANs) play crucial roles in the implementation of low-power and low-cost wide area distributed systems.
#Nukit meaming portable
The portable stand was designed to be easily moved (in Figure 6 and Figure 7).
All electronic devices were put in a waterproof control box as well as the 18650 lion battery. This data can be monitored in real time on the internet by computers and smartphones.
It was considered as a public gateway, forwarding data from a private single channel gateway to a public system.
#Nukit meaming serial
The connection was a serial communication with a full duplex, since there were two-ways that data can be transmitted via pin TX and RX.
It should be noted that, they were connected via UART (Universal Asynchronous Receiver/Transmitter). Second, the AIS NB-IOT (Quectel BC95 chip) from AIS Telecommunication Company in Thailand was used to connect with the SparkFun RedBoard Arduino UNO Compatible. GPS data (latitude and longitude) can be monitored on OLED screen. It was considered as a private single channel LoRa gateway, receiving GPS data from GPS LoRa node. And OLED display was connected with the SparkFun RedBoard Arduino UNO Compatible by I2C communication channel. It should be noted that, hardware connection between the LoRa SX1267 chip and the SparkFun RedBoard Arduino UNO Compatible was SPI communication. The maximum distance of the communication between those devices was 5 kilometers and the percentage of received complete packages was 89 and the lost package was 1.Ī detail diagram of detail diagram of the low cost single private LoRa gateway connecting with the public AIS NB-IOT First, LoRa Sx1276 with OLED shield was used to connect with the SparkFun RedBoard Arduino UNO Compatible. The EGAT, Mae Mao Coal Mining, Lampang Thailand was the location for testing the prototype. The research studied the distance of the communication between the low cost single private LoRa gateway and the LoRa node with the GPS, RSSI (Received Signal Strength Indicator), received completed packages, incomplete packages and lost packages. Node-Red was applied as the cloud service to manage this data. That data can be monitored in real time on smart phones and computers via web browser. The AIS NB-IOT was applied as a public communication for sending data (latitude and longitude) from the private LoRa gateway and the LoRa node with the GPS to the cloud. The prototype of the low cost single private LoRa gateway and LoRa node with GPS was developed as the alternative communication channel for IOT work.