Fecha de publicación: 10/04/2020 Fuente: Wipo "IOT" The utility model provides an NB-IoT practical training experiment box. The system comprises an experiment box, and an NB-IoT local server, at least two NB-IoT nodes and a sensor development kit whichare arranged in the experiment box, the sensor development kit is used for detecting data; wherein the NB-IoT nodes are used for being connected with the sensor development suite and collecting detection data, the NB-IoT nodes are connected with one another to form a cellular network, and the NB-IoT local server is used for being connected with at least one NB-IoT node and obtaining collection data of all NB-IoT nodes in the cellular network. All the practical training components are connected and corresponding configuration files are loaded; an NB-IoT cellular network can be established to realize data acquisition and transmission; according to the utility model, NB-IoT in the 5G communication technology is introduced into the field of teaching, assistance is provided for students to master frontier science and technology, the practical training components are placed in the practical training box, and the whole practical training device is convenient to carry, popularize and use.