基于STM32的压疮预防提醒坐垫的系统设计

System design of pressure sore prevention reminding cushion based on STM32

针对医院关于久卧、久坐病人预防压疮产品的需求,设计了一种压疮智能预防提醒的装置—一种基于分布式柔性薄膜压力传感器的压疮预防提醒系统,以分布式柔性薄膜压力传感器为采集传感器、STM32F103RET6单片机为控制核心,设计的PCB电路板集成了传感器采集电路量化电路、行列多路模拟开关电路、语音播报控制电路,低功耗唤醒电路,开发了样机,进行了实际信号采集和实验,验证了设计方案。实验结果表明,本文的设计方案实现了对久卧、久坐病人的及时智能语音提醒,有效避免了压疮的发生。

In response to the hospital′s demand for pressure ulcer prevention products for long-term and sedentary patients,a pressure ulcer intelligent prevention reminding device is designed—a pressure ulcer prevention reminder system based on a distributed flexible membrane pressure sensor,in which the membrane pressure sensor is the acquisition sensor with distributed flexibility,and the STM32 F103 RET6 microcontroller is the control core.The designed PCB circuit board integrates the sensor acquisition circuit quantization circuit,the row and column multi-channel analog switch circuit,the voice broadcast control circuit,and the low-power wake-up circuit.The prototype has been developed and carried out.The actual signal acquisition and experiment verify the design scheme.The experimental results show that the proposed design realizes timely intelligent voice reminding to patients who are lying and sitting for a long time,effectively avoiding the occurrence of pressure sores.