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LEAF System (Why us? (Massive market (Hospitals, Emergency response,…

- - - - Pair hub with phone over WiFi (or USB)
        
        Hub emits its own signal that you log in to
        
        Once connected, give hub wifi information and it will log on to your network and set up its own address
      - Tags are added through the web interface
        
        Simply place tag on top of receiver (TBD) and create new tag entry
- - - - Time of Flight
        
        Broadcasting current epoch time (ns)
        
        Listen to return signals with tag IDs and repeated epoch time
        
        FPGA DSP filters, sorts, and converts returned signals to digital stream
        
        Returned epoch time hardware subtracted from current epoch time and TOF is calculated
        
        Signal must be processed in less than 1 ns, or at 1GHz
        
        https://en.wikipedia.org/wiki/Multilateration
      - Signal Strength
        
        Easy to implement
        
        Not precise
        
        Environment noise