It might have to do with government restrictions on devices that can be used for targeting people – the Panasonic GridEYE is considered a “controlled device” here in the USA. I was going to do a product based on it (i.e. it can tell you how many people are in a room) but the usage restrictions made it too difficult to sell.
So, I just open-sourced the project
http://bit.ly/1clb03r
and people can build their own if they want to try it out.
 Clinical-Grade AFE Measures Four Vital Signs for Remote Patient Monitoring DevicesSponsored by Analog Devices Simplify the design of wearable remote patient monitoring devices by measuring four vital signs with one triple-system vital signs AFE. This single-chip AFE integrates three measurement systems (optical, ECG and bio-impedance) to obtain four common vital signs: electrocardiogram, heart rate, blood-oxygen saturation, and respiration rate. |
