基于STM32单片机2.4G无线传输技术的医院库存血液远程计数及温度监测系统研制与应用  

Development and application of a remote monitoring system for blood counting and temperature of banked blood in transfusion department based on 2.4G wireless transmission technique with STM32 single-chip

作　　者：李双涛[1] 陈宏军[2] 王宝光 吕红艳[1] 张晶[1] 颜伯霖 Li Shuangtao;Chen Hongjun;Wang Baoguang;Lyu Hongyan;Zhang Jing;Yan Bolin(Department of Blood Transfusion,Beijing Geriatric Hospital,Beijing 100095,China;Department of Medical Engineering,Beijing Geriatric Hospital,Beijing 100095,China;Department of Blood Transfusion,The First People's Hospital of Guiyang,Guiyang 550002,China)

机构地区：[1]北京老年医院输血科,北京100095 [2]北京老年医院医学工程处,北京100095 [3]贵阳市第一人民医院输血科,贵阳550002

出　　处：《中国医学装备》2025年第4期1-5,共5页China Medical Equipment

摘　　要：目的:研制基于STM32单片机的2.4G无线传输技术的医院库存血液远程计数及温度监测系统,以对医院库存血液实施远程计数及温度动态监测。方法:基于STM32单片机的2.4G无线传输技术,采用NRF24L01无线收发器,以STM32单片机为处理器,使用QT50红外光电传感器感知血液存储计数,LM35DT温度传感器采集温度,显示屏采用全海(QH)系列发光二极管(LED)高亮数码管,以达到对数据的精准传输和温度的动态监测。结果:经于室内多房间测试无线传输距离可达45 m远,无延时,血液库存计数准确;温度控制范围为±0.24℃,控制精度高于国家标准(±1℃);超高低温报警灵敏,当温度升高至7℃或降低至1℃时,蜂鸣器报警,动作时间<1 s。结论:研制的医院库存血液远程计数及温度监测系统操作便捷、性能稳定,可及时防止发生血液损害,同时极大减轻输血科工作强度。Objective:To develop a remote monitoring system for blood counting and temperature of banked blood in the transfusion department based on 2.4G wireless transmission technique with STM32 single-chip,so as to implement remotely dynamic monitoring for counting and temperature of banked blood in transfusion department.Methods:Based on 2.4G wireless transmission technique with STM32 single-chip,the NRF24L01 wireless transceiver was adopted in this design.STM32 single-chip was used as the processor,and QT50 infrared photoelectric sensor was used to sense the counting for stored blood,and LM35DT temperature sensor was used to collect temperature.The display screen adopted high-brightness digital tube of light emitting diode(LED)of Quanhai(QH)series,so as to achieve accurate data transmission and dynamic monitoring for temperature.Results:The measurement for multiple rooms indoors showed that the distance of wireless transmission can reach 45m without delay,and the counting for banked blood was accurate,and the range of controlling temperature was±0.24℃,which controlled precision was higher than that(±1℃)of national standard.It has ultra-high sensitivity for high and low alarm temperature,which buzzer will alarm when the temperature rises to 7℃or falls to 1℃,and the action time was less than 1s.Conclusion:The developed remote monitoring system for blood counting and temperature of banked blood in transfusion department is flexible in use,and it has stable performance,which can timely prevent the occurrence of blood damage,and greatly reduce the workload of transfusion department.It has a broad application prospect.

关 键 词：血液储存 STM32单片机 2.4G血液远程计数 温度监测 

分 类 号：R197.324[医药卫生—卫生事业管理]