user106332

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• Proof of concept to use a single Puck to detect people passing a corridor with IR emit/receive

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• Proof of concept to use a single Puck to detect people passing a corridor with IR emit/receive

  in Puck.js, Pixl.js and MDBT42 • 5 years

  

  Yeah good point. Actually the complete usage is more of a cheap "entrance control" than people counting... Basically if someone pass the check point without access rights, the checking mobile phone (fixed at the gateway) will raise an alarm. In order to get access, the user has to provide a valid QR code (from their phone) to the stationary checking mobile phone and that will disable the alarm for the next person passing. It isn't intended to be a strict check, just would make people opt to scan and track their presence.

  My use-case is at gym without a fixed front desk, but there would be people (and admins) around when the system is turned on.

• Proof of concept to use a single Puck to detect people passing a corridor with IR emit/receive

  in Puck.js, Pixl.js and MDBT42 • 5 years

  

  Hi all :)

  Thanks for the feedbacks. I'm actually only require a pretty short distance in my use-case... And don't want to make it to sensitive to surrounding/far-away objects. I guess the lazer/short range PIR is the way to go...

• Proof of concept to use a single Puck to detect people passing a corridor with IR emit/receive

  in Puck.js, Pixl.js and MDBT42 • 5 years

  

  Thanks for your feedback Gordon! I will try this options :)

• Proof of concept to use a single Puck to detect people passing a corridor with IR emit/receive

  in Puck.js, Pixl.js and MDBT42 • 5 years

  

  Hi all,

  I am thinking about an application with Puck.js to detect if people is passing a corridor. I have a pretty high level idea that would like to know if this could ever work:

  • Use the IR emitter
    
  • Use a IR receiver module: https://www.espruino.com/IRReceiver
    
  • Use a mirror
    
    

  A basic drawing of the design is:

  Wall Wall
  | |
  | |
  | Puck ) ||| <- Mirror
  | |
  | |

  The puck will emit IR signals (maybe with a ) and try to detect if the IR is reflected by the mirror to indicate the passage is unobstructed and if someone passes by we can detect the loss of signal.

  The system can be turned on using Bluetooth.

  What do you think? An obvious question is, is it possible to direct the IR trasmission from the Puck to not get directly caught by the receiver? Or else some kind of distance measurement (or delay) will have to be in place to distinguish reflected and direct signals.

  Best regards!
  Min