What is DTU wireless data transmission_what are its advantages

What is DTU wireless data transmission_what are its advantages

DTU wireless data transmission terminal is a kind of wireless data transmission terminal equipment with strong anti-interference ability, powerful function, convenient use, low operating cost and low cost. It adopts GPRS/4 G/NB-IoT communication technology and makes full use of the existing network. resource. So, what are the benefits of doing this?

1. Provide serial communication interfaces such as RS232 and RS485, which are commonly used serial communication methods for DTU. In addition, DTU usually designs serial data as "transparent conversion", which means that DTU can convert the original data into TCP/IP data packets on the serial port for transmission without changing the content of the original data communication. In this way, DTU can connect different user equipment through serial communication without changing the user equipment.

2. Internal integration of TCP/IP protocol stack.

Encapsulate PPP dial protocol and TCP/IP protocol stack in DTU, with embedded operating system. As far as hardware is concerned, it can be regarded as a combination of embedded PC and wireless MODEM. There are dial-up Internet access and TCP/IP data communication functions.

3. Support parameter configuration and permanent storage.

DTU is a widely used communication device. The IP address and port number of the data center and the baud rate of the serial port will be different in different applications. Therefore, dtu should support parameter configuration and store configuration parameters internally (usually FLASH or EEPROM, etc.). When it is turned on, it will work automatically according to the set parameters.

4. Support automatic heartbeat, always online.

One of the advantages of the GPRS communication network is to support permanent online terminal equipment. Therefore, a typical DTU is designed to support permanent online functions. This requires DTU to include automatic dialing and heartbeat packets to stay online (when there is no data communication for a long time, the mobile gateway will cut off the connection between the DTU and the center. The heartbeat packet means that the DTU and the data center send a small data packet before cutting off the connection. To prevent disconnection), and supports automatic reconnection and automatic re-dial after disconnection.

The DTU series wireless data transmission terminal products developed by Changsha Zoko Link Technology Co., Ltd. adopt industrial design, strong anti-interference ability, stable and reliable, plug and play, and can be quickly connected with RTU, PLC, industrial computer and other equipment. The operator's network transmits user equipment data to the Internet to realize remote data transparent transmission; it can be widely used in meteorology, environmental protection, water conservancy, industrial control, power meter reading, street lamp monitoring, road traffic and other industries.