Campus student smart bracelet monitoring system and method based on LoRa communication and federated learning

Abstract

The invention provides a campus student smart bracelet monitoring system and method based on Lora communication and federated learning, and belongs to the technical field of Internet of Things. According to the invention, federal learning is used, model updating is carried out through a basic global health monitoring model and data collected by a sensor in a Lora bracelet configured by each student, and only encrypted model data are transmitted among the Lora bracelets, the Lora gateway and the cloud server. The local model data of the terminal is integrated with the global health monitoring model in the cloud server, and a more real model is obtained after updating. According to the system, the functions of protecting the privacy of the students and monitoring the health conditions and the motion states of the students in the campus are provided, and the purposes of lower system power consumption, real-time large-range monitoring, data transmission and prediction of the future health conditions of the students are achieved.

Description

technical field [0001] The invention belongs to the technical field of the Internet of Things, and relates to a large-scale monitoring system and method for sports health monitoring on student campuses based on a spread spectrum technology-based ultra-long-distance wireless transmission scheme (LoRa) combined with federated learning. Background technique [0002] In IoT applications, the transmission method of data often plays an important role. Existing smart watches or bracelets often use Bluetooth, cellular, and wifi wireless data transmission technologies to directly upload data collected by terminal devices to the connected mobile phone. For common real-time sports health monitoring systems, they are often limited to small sports venues, relying on the above technologies to send data to the nearest data collection server. The use of cellular wireless data technology for transmission is often accompanied by problems of large power consumption and radiation; while the us...

AI Technical Summary

Problems solved by technology

For the monitoring of campus students' sports health, it is often on a large sports field or a standard runway. At the same time, it requires real-time collection and forwarding of individual data without affecting the normal sports activities of students. The use of smart bracelets requires the ability to send and receive data. Consumption is limited

On the other hand, the real-time data collected from students' smart bracelets is usually small in scale, and it is difficult to train the correspondingly designed application model; by collecting all real-time data of the student group and sending it to the server center for training, it is faced with the problem of transmission Heavy load and issues involving personal privacy and security

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