LoRaWAN is a typical representative of LPWA networks. It uses a spread spectrum modulation technology called LoRa, which is characterized by a very high link budget and can achieve up to 10 kilometers of coverage through a single gateway.

Advantages and disadvantages of zigbee protocol and main application areas of zigbee，Mainly used for short-range wireless connections. It has its own protocol standard that coordinates communication among thousands of tiny sensors.

The difference between 4G LTE gateway and CPE,4G CPE is an LTE data terminal device that converts high-speed 4G signals into WiFi signals, which can support a large number of mobile terminal access. 4G CPE can be widely used in wireless network access in rural areas, towns, hospitals, units, factories, communities, etc., which can save the cost of laying wired networks.

As the most promising low-power wide-area communication technology, LoRa has been used in all walks of life. LoRa uses linear frequency modulation spread spectrum modulation technology, which maintains low power consumption, significantly increases communication distance and network efficiency, and eliminates interference, so that even if the same frequency is used for simultaneous transmission, t···

NB-IoT application scenarios: Agricultural Internet of Things, intelligent manufacturing, trash cans Does the Agricultural Internet of Things support NB-IoT?The agricultural Internet of Things usually adopts M2M, Zigbee, 433MHz, WiFi, wired, etc. The main problems focus on network coverage, power supply and cost.

NB-IoT technology can solve the problem of low power consumption, but it needs to be established when network coverage is in place and global roaming access is available.

NB-IoT application scenarios Does electricity meter reading support NB-IoT?The scenarios of power meter reading are divided into user-side communication and distribution network communication systems. The frequency band of the power load monitoring system adopts 230MHz+1.8GHz TD-LTE private network.

The difference between LoRa and NB-IoT, the technology used by NB-IoT is cellular communication, and the linear spread spectrum used by LoRa. The network deployment of NB-IoT can be multiplexed with existing cellular base stations, while LoRa requires independent network construction.

The industry applications of 4G DTU are mainly in the following major industries:Common application: PLC realizes wireless communication application through DTU, DTU and remote configuration software realize wireless transmission

4G DTU adopts high-performance industrial-grade 8/16/32-bit communication processor and industrial-grade wireless module, uses embedded real-time operating system as software support platform, and provides RS232 and RS485 (or RS422) interfaces, which can be directly connected to serial devices , to realize the function of transparent data transmission.