Wired connections for smart breathing circuits

A method for automatically characterizing pneumatic components of a pneumatic path for a ventilator, the method comprising:

• emitting an interrogation signal through electrical conductors of a plurality of pneumatic components of the pneumatic path;
• detecting a response signal from the electrical conductors of the plurality of pneumatic components of the pneumatic path;
• based on the response signal, determining an aggregate electrical characteristic;
• and
• based on the aggregate electrical characteristic, determining at least one of:
• an identity of a unique combination of the plurality of pneumatic components;
• or
• one or more pneumatic characteristics of the pneumatic path.

A method, performed by a ventilator, for automatically characterizing pneumatic components of a pneumatic path, the method comprising:

• emitting an interrogation signal through electrical conductors of a first pneumatic component and a second pneumatic component of a pneumatic path, wherein the interrogation signal includes a time series of different frequencies and the interrogation signal is altered by a first electrical identification circuit of the first pneumatic component and a second identification circuit of the second pneumatic component;
• receiving a response signal in response to the interrogation signal, wherein the response signal includes a response to different frequencies of the interrogation signal;
• based on the response signal, determining at least one pneumatic characteristic of the first pneumatic component and the second pneumatic component;
• and
• delivering ventilation that is compensated based on the pneumatic characteristics.