According to AASM published classification of types of portable PSG, all type of PSG require pulse oximetry to regard as parameter for sleep examination. In our new proposed PSG system we integrate this parameter into system by software. PSG Client receives two kinds of signals from original bio-signal acquisition unit and pulse oximeter simultaneously. Unfortunately two kinds of signals can’t synchronize completely. At next version of PSG device, in order to ensure the synchronization we require to integrate pulse oximetry into system by hardware.
The secure network connection in our proposed system adopts RSA algorithm.
There exists a key-pair (public key and private key) on PSG Client and PSG Server.
At initial state of PSG Client connect to PSG Server, we have to exchange each other’s public key by direct connection. But this way of exchange key exists some risk, because that the exchanged keys could be intercepted and modified. We have to exchange each other’s public key in safer way like off-line transmission by human, but it is not efficient usually. Or we have to establish third-party certification authority.
It can certify the identity of connection between two sides.
In PSG Server, we can add the function of automatic sleep stage classification.
This function can assist sleep physician to do sleep diagnosis more efficiently.
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