Low-cost and highly reliable MIMAMORI device for patient monitoring

In an aging society, it is important to closely monitor elderly people, especially those with cognitive disorders, because they can easily fall down and sustain serious injuries. Therefore, the demand of the monitoring system which can detect dangerous situation automatically is increased. In this paper, we propose a low-cost and highly reliable monitoring device which is called the MIMAMORI device for a monitoring system at a medical institute. The MIMAMORI device can detect dangerous situations, such as when a patient is at risk of rolling out of bed. Our MIMAMORI device has the following advantages: 1) open-source software and hardware, 2) component-based software, and 3) built from cheap products. We detail the device integration and the patient state classification algorithm of the MIMAMORI device, and verify its practical applicability with a preliminary experiment. We found that the MIMAMORI device can identify dangerous situations with an accuracy of 93%. This result shows that the MIMAMORI device is effective in monitoring patients.