LPWAN (low-power Wide-Area Network, low-power wide-area network) has emerged rapidly in recent years. NB-IoT and LoRa are typical representatives and the two most promising low-power wide-area network communication technologies. So which is better, NB-IOT or LoRa IoT long-distance low-power wireless technology?

The difference between RTU and DTU:RTU = remote terminal unit remote terminal device;DTU==data-transfer unit Data transfer unit;RTU is more complicated than DTU.

RTU is a remote terminal equipment, which is an automatic equipment based on "telecontrol" technology (telemetry, remote signaling, remote adjustment, remote control) installed in power plants and substations in the power grid dispatching automation system. PLC is a programmable logic controller, which performs data aggregation and instruction processing in the field station. It has a variety of c···

RTU is the abbreviation of Remote Terminal Unit (remote measurement and control terminal), which is the basic unit of SCADA system. An RTU can have several, dozens or hundreds of I/O points and can be placed in the field near the measurement point. RTU should have at least the following two functions: data acquisition and processing, data transmission (network communication), of course, many RTUs ···

4G transmission terminal DTU products include 4G DTU, 3G DTU, LTE DTU, TDD DTU, FDD DTU, GPRS DTU, TDD-LTE serial converter, FDD-LTE serial converter, etc.

NB-IoT and LoRa are both representatives of the field of low-power wide area networks. As representatives of the field of low-power wide area networks, both NB-IoT and LoRa are long-distance transmission technologies and are hard to distinguish. Then NB-IoT and LoRa are very strong. Who is the future trend of the Internet of Things? Let's take a look at the specific content.

Data terminal (4G DTU) access: 4G users can choose CMNET and APN to access the network. CMNET is usually used for public users, and APN is for industry users, usually in a group. Users need to set a user name and password, which is more secure good. In addition, APN users can apply for binding fixed IP addresses of mobile intranets.

Smart gateway, also called industrial IoT smart gateway, wireless data collection gateway, communication collection gateway, wireless gateway, industrial communication gateway, wireless sensor management host, industrial Ethernet serial port smart gateway, RS485 serial port Modbus RTU smart gateway, belongs to wireless sensor Internet product.

The wireless communication module enables all kinds of terminal devices to have the ability to transmit information on the Internet, and is the information portal for all kinds of intelligent terminals to access the Internet of Things. It is the key link that connects the perception layer and the network layer of the Internet of Things. The device data generated by all the terminals of the Interne···

Narrowband Internet of Things (NB-IoT) technology is widely used in agriculture, industry, government and life. So what is the architecture diagram of Narrowband Internet of Things (NB-IoT) technology? A typical NB-IoT architecture has three layers, which are Perception layer, network layer, application layer.