09-03-2019, 04:38 PM
(09-03-2019, 02:31 PM)avernar Wrote:(08-30-2019, 10:22 AM)Bytor Wrote: I disagree. If you need to lay the card on the sensor because it has to be close enough to read the NFC's weak signal, and the user holds it up too far away, that's not faulty implementation, it's the user not following instructions. Sometimes the user is just doing things wrong.Near Field Communication. Near, not touching. If you have to get closer than 4cm the power on reader is set too low.
User interfaces are like jokes. If you have to explain it, it's not a good one.
So our two options are:
1) Get every single person who lives or visits here to mush their card against the reader.
2) Increase the power of the reader excitation coil.
Hmmmm. Let's pick the easy one and do option 2. Did that at a parking garage entrance once. It would read the card 3-4 feet away. You didn't even have to roll down your window.
Security implications, yikes! That 1-1.5m read you describe boosts the interception distance up to, what 10m instead of the 1m for a typical tap like for a card terminal in a store?
I'd pick the secure option of having users lay their fare card on the sensor, just like how 99% of people lay their car on the screen of a card terminal in a store.