What is GPRSDTU? What function does it have

GPRS DTU refers to a data transmission module based on GPRS. It is a wireless terminal device specially used to convert serial port data into IP data or convert IP data into serial port data and transmit it through the GPRS wireless communication network. . For example, Four-Faith GPRS DTU F2114.

The main functions of DTU:

Always online;

DTU data terminal can maintain the connection with the GPRS/CDMA network, and can detect the status of the network in real time to maintain communication The link is unobstructed;

Automatic dialing;

When the link between DTU and the network is interrupted due to reasons such as the network or external power being turned off, DTU can automatically initiate dialing and re-establish the IP address with the network. Establish a connection.

Transparent transmission;

The so-called transparent transmission means that after the user data is transmitted through the network, when it reaches the serial port, it is output in strict accordance with the original code of the data, and does not require the user to perform protocol decoding and other processing.

Standard UDP/TCP data transmission;

Users can choose to use communication protocols according to the characteristics of the data. The UDP protocol is a "linkless data transmission protocol" and the TCP protocol is a "reliable "Data transmission protocol";

When choosing UDP for data transmission, the data usually has the characteristics of reproducibility and loss of data does not affect the overall situation, such as collecting data on temperature, pressure, flow, GPS location information, etc.

When choosing TCP for data transmission, the data is usually required to be complete and indispensable.

Fixed IP and supports dynamic domain names;

DTU not only supports establishing connections with fixed IPs, but also supports dynamic domain name resolution. This feature provides a solution for users without fixed IPs to use DTU plan.

In general, the emergence of DTU wireless communication terminal (GPRS DTU F2114) has adapted to the requirements of long-distance data transmission and communication, and is especially suitable for data collection points that are scattered, remote, unmanned, and wired communications. In industries where installation and construction are inconvenient and costly, such as meteorology, environmental protection, water conservancy, electricity, oil pipeline monitoring, urban pipe network monitoring, industrial monitoring, transportation, and POS machine smart retail, it greatly improves data communication capabilities and saves manpower and material resources. cost, realizing a leap forward in data communication.