The wireless communication module is a key link connecting the perception layer and the network layer of the Internet of Things. It belongs to the underlying hardware link and is irreplaceable. There is a one-to-one correspondence between the wireless communication module and the Internet of Things terminal.

DTU is the full name of GPRS data transmission unit. At present, there is actually a clearer agreement on GPRS DTU in China: GPRS DTU is a GPRS wireless device specially used to transmit serial port data through GPRS network.

NB-IoT (Narrow Band Internet of Things, NB-IoT) is an emerging technology of the cellular-based narrowband Internet of Things in the IoT field. It supports the cellular data connection of low-power devices in the wide area network. It is also called low-power wide area network ( LPWA).

The Internet of Things connects all the machines and equipment on the production line. Users can view the status of the equipment and production progress anywhere, providing mobile users with real-time manufacturing data. However, as more and more devices are connected to the Internet and a large amount of data is transmitted, a lot of pressure is placed on the network and cloud systems. In order ···

Classification of industrial routers(1) From the perspective of architecture, routers can be divided into the first-generation single-bus single-CPU structure industrial router, the second-generation single-bus master-slave CPU structure industrial-grade router, and the third-generation single-bus symmetric multi-CPU structure industrial-grade router , The fourth-generation multi-bus multi-CPU str···

Industrial 4G routers have two typical functions, namely data channel function and control function. Data channel functions include forwarding decision, backplane forwarding and output link scheduling, etc., which are generally completed by specific hardware; control functions are generally implemented by software, including information exchange, system configuration, and system configuration with···

In the architecture of the Internet of Things, an intermediate device is needed between two different networks at the perception layer and the network layer, that is, the "Internet of Things Gateway". The IoT gateway can be used for both wide area network interconnection and local area network interconnection. In addition, the IoT gateway also needs to have device management functions. Operators c···

After GPRS DTU is powered on, first read the working parameters stored in the internal FLASH (including GPRS dialing parameters, serial port baud rate, data center IP address, etc., which have been configured in advance).

DTU is the full name of GPRS data transmission unit. At present, in China, there is actually a clearer agreement on GPRS DTU: GPRS DTU is a GPRS wireless device specially used to transmit serial data through the GPRS network. The following introduces the common problems of DTU application and the working engineering of GPRS DTU.

GPRS DTU is a wireless data terminal for the Internet of Things, which uses public operator networks to provide users with wireless long-distance data transmission. It uses high-performance industrial-grade 8/16/32-bit communication processors and industrial-grade wireless modules. The real-time operating system is a software support platform. It also provides RS232 and RS485 (or RS422) interfaces···