Aimed at the problems of low management efficiency and poor visitor experience,a playground smart bracelet system based on STM32F103C8T6 is designed.STM32F103C8T6 is taken as the main control chip,and MAX30102 heart rate sensor is used to collect tourists'heart rate data,with a sampling frequency of 4 times per second and an alarm threshold set.The ESP8266WiFi module is taken as the communication transmission medium between the smart bracelet and the server.The working mode is adjusted to the Station mode,and the positioning algorithm based on the fingerprint matching is used to realize the WiFi positioning.The XZ-T1010C metal-resistant RFID tag,which can be repeatedly erased and programmed,stores tourist information and realizes the WiFi positioning,automatic billing,heart rate detection and other functions.The test results show that the heart rate detection error of the designed playground smart bracelet system is no more than 3 times/minute,and can record and save tourist information well,it meets the needs of tourists,improves the management efficiency of the playground,and greatly saves the labor cost of the playground.
维普
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