NB-IoT refers to Narrow Band-Internet of Things technology. Focusing on the Low Power Wide Coverage (LPWA) Internet of Things (IoT) market, NB-IOT is an emerging technology that can be widely used around the world. NB-IOT uses the license frequency band, and can be deployed in three ways: in-band, guard band, or independent carrier to coexist with the existing network.

In the context of low-power wide-area network technologies such as NB-IoT/eMTC/LoRa, a "complementary effect" is formed in scenarios dominated by short-range technologies such as WiFi, Bluetooth, and Zigbee. What is the relationship between lora and bluetooth?

Generally, DTU can only transmit standard 232 and 485 data, while RTU can only convert analog data into serial port data after collection. DTU is a data transmission device, and RTU is a data acquisition device. The division of labor between the two is clear and easy to distinguish.

DTU is a wireless terminal device that uses the operator's 2G/3G/4G network to convert serial data into IP data or convert IP data into serial data. The following is an introduction to the rankings of DTU application fields.

NB-IoT technology has four major advantages:One is: wide coverage, the coverage of NB-IoT is 20 db better than the traditional GSM network, and one base station can provide 10 times the area coverage;

Narrow Band Internet of Things (NB-IoT) has become an important branch of the Internet of Everything. NB-IoT is widely popular for its strong coverage and long communication distance. So how big is NB-IoT's coverage and how to measure its coverage

As a communication technology in the IOT field, NB-IOT has also brought many benefits to many industries. It is widely used and has many advantages. It is really a good helper for the network layer of the Internet of Things.

With the ability to support massive connections, one NB-IoT sector can support 100,000 connections, supporting low latency sensitivity, ultra-low equipment cost, low equipment power consumption and optimized network architecture.

In the field of the Internet of Things, there are various communication technologies at the same time. Divided according to the dimension of transmission distance, in the field of local area wireless network, there are BLE, WIFI, Zigbee, sub1G, etc., which are widely used in wearable, home, enterprise and other scenarios; for wide area wireless network, there are special applications for low speed···

In the current context of the Internet of Things, NB-IoT and LoRa are highly complementary, but in projects that require industry and enterprise-level private networks, the NB-IoT private network solution is obviously comparable to other technologies such as LoRa, Weightless, and ZETA. alternative relationship.