Motor Rotation Control System on Syringe Pump Using PID and IoT-Based Flow Rate Monitoring

Syringe pump is a life support device that functions to provide drugs in the form of fluids through the vein to the patient's body in a measurable and consistent within a period of time. This research is designed to make the syringe pump more stable, equipped with PCA (Patient Controlled Analgesia) mode, and IoT-based flowrate monitoring. The contribution made by the author is to improve the working system of the syringe pump to be more stable which is equipped with a PCA mode that functions to inject liquid according to the patient's needs, and facilitate remote flowrate monitoring using IoT. In this research, the author uses the PID method to improve the stability of the motor according to the flowrate setting. From the test results that have been done, the flowrate stability of the PID system is quite good in all settings. The resulting rise time is good enough to reach the setpoint, the average occurs in seconds 1-5, the fastest rise time occurs at a flowrate setting of 5 ml / h, which is 1 second and the longest rise time occurs at a flowrate setting of 20 ml / h, which is 5 seconds. The highest overshoot occurs at a flowrate setting of 50 ml/hour with a value of 1.98 ml/hour and the lowest occurs at a flowrate of 5 ml/hour with 0.44 ml/hour. The highest and lowest stability occurs at a flowrate setting of 10 ml/hour, which is 1.5% and 6.5%. In PCA mode, the largest error obtained is around 1% in all settings. IoT-based flowrate monitoring is good, the value displayed on the LCD in real time is sent and displayed on the web. Based on the results of the data that has been obtained, the PID system is still not optimal in controlling the stability of the flowrate so that in the future it is necessary to find a suitable and balanced combination of Kp, Ki, and Kd values.