分布式病房监测装置的设计

为了减轻医务人员的负担和保证病人的安全,设计了一种分布式病房监测装置。该装置以无线通讯技术、光线折射/散射原理为基础,实现病房输液监测的自动化和智能化。红外发射器(IR908)发射的红外线透过输液管,被红外接收器(PT908)接收,由于输液管中的药液变化会改变接收光线的强弱,引起红外接收器的电压变化,最后单片机对红外接收器的电压进行判断。实验结果表明:该装置结构简单、可靠性高、成本低廉,且能实现长时间的自动监测。

Design of Distributed Monitoring Device for Wards

In order to reduce the burden on medical staff and ensure the safety of patients, a distributed monitoring device for wards is designed. It realizes the automation and intelligence of the ward transfusion monitoring on the basis of the wireless communication technology and the light refraction and scattering principle. The infrared ray transmitted by infrared transmitter (IR908) is received by infrared receiver (PT908) through the infusion tube, the change of liquid in the infusion tube could alter the receiving light intensity which leads to the voltage change of the infrared receiver, and the SCM identifies the voltage of infrared receiver finally. The experimental results show that the device has simple structure, high reliability, low cost, which realizes the automatic monitoring for a long time.