What is the solution to the unstable 4G DTU connection

What is the solution to the unstable 4G DTU connection

DTU is a terminal device for the Internet of Things. Under the background of the continuous advancement of industrial informatization, the market demand for DTU is also increasing. It has many advantages such as wide network coverage, low tariffs, and accurate and timely data transmission. But in the process of using DTU, there will be many problems. For example, DTU connection is unstable, which will cause the loss of data transmission, which greatly affects the progress of the project.

In the actual application process, the DTU connection is unstable, mainly due to the following reasons.

First, it is applied in remote mountainous areas.

The signal environment in remote mountain areas is often very poor, and unstable DTU connections often occur. The countermeasure is to choose a high-gain antenna to increase the ability to receive network signals, or to install a serial port data line and place the DTU in a place with strong network signals.

Second, the DTU parameter settings are incorrect.

 In areas with strong network coverage, incorrect parameter settings are the most common. Most manufacturers' DTUs generally have DTUs to prevent disconnection. In practical applications, users can set the heartbeat packet time interval to be less than the detection time to avoid disconnection.

Third, the ring network signal is too bad.

For example, the underground parking lot in the city, the mountain library, etc., the shielding of obstacles makes the network signal poorly compiled. The solution is to extend the antenna to a place where the signal is good.

Fourth, the quality of DTU itself.

At present, there are many DTU manufacturers on the market, and the product materials are also uneven. DTUs with poor quality have natural defects in hardware and network settings. The solution is to buy high-quality products from reliable manufacturers.

The above four points are the application conditions and solutions of unstable DTU connection, the actual situation, and the specific analysis.0