…Several people have mentioned the idea of using the Pi to help relatives and carers support older people in their own homes by monitoring aspects of their daily routine as well as things like the indoor temperature, but until now, we hadn’t seen anyone write up a system they’d implemented. So we were very interested when we received an email from Jamie Grant, telling us how he had used a Raspberry Pi-based home monitoring system to help him support his late mother in maintaining her independence.
An early Pi adopter, one of Jamie’s first projects was home power monitoring. After installing a system to plot electricity usage in his own home using CurrentCost hardware and a Raspberry Pi, he was struck by the “kettle spike”, a power spike that shows clearly that someone is up and making tea. His mother was very elderly, was living alone and had a worsening serious illness, and it occurred to him that the kettle spike would provide a useful indication that she was OK. He decided to install the system at her house, adding some wireless PiR (passive infrared) motion and door sensors. Jamie called this first version HomeCare Guardian; power and sensor data were displayed in a simple webpage. Here’s another screenshot, showing the system in 2013, after about a year of development:
From this single page, Jamie could see whether his mum was OK and going about her usual daily routine, and a sensor at the front door indicated when she took a taxi journey to visit her friends and when she returned. He says,
I found Homecare Guardian a great comfort and my sister and I used it daily to check on her condition. Near the end mum was more forgetful and sometimes left her front door open, we could see whenever this happened and I would call round and check she was alright.
Mum managed to stay totally independent and was only admitted to our local hospital for her last week where she got the best possible care.
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