摘要
本监控系统采用多机通信,一个主站控制多个从站和主机之间的数据传输,并采用光电技术检测液体点滴的速度。单片机控制步进电机带动蠕动泵实现对滴速的控制,软件根据检测结果实现对控制电路的自适应调节,通过按键或上位机软件实时设置点滴速度、输液量及床位号,输液结束或输液速度发生异常时,从站使用发光二极管和蜂鸣器报警,并将报警信号通过串行口传送至主站,主站通过监控软件和蜂鸣器实现声光报警。实验证明本系统具有电路简单、检测精度高、响应速度快等优点。
This monitoring system, using multi-machine communication, that is, one master station controls the data trans- mission between the host computer and multiple slave stations, tests the speed of the liquid with photoelectric techniques. MCU controls stepper motor which drives peristaltic pump to achieve the drip rate control, the software achieves adaptive adjust to control circuits based on test results. It sets real-time bit rate, fluid volume and bed number through the keypad or upper computer software, when the infusion has an abnormal rate or ends up, slave station uses light-emitting diode and buzzer to alarm and the alarm signal sends through the serial port to the main station, the main station makes use of the monitoring software and buzzer to achieve sound and light alarm. The system has proved the advantages of simple circuit, high precision, fast response and so on.
出处
《电子技术应用》
北大核心
2011年第9期56-59,共4页
Application of Electronic Technique
