title: [Installation of intelligentized gas switching device of the medical air compressor].
abstract: OBJECTIVE
  To add the functions of automatic selection, automatic switching to ventilator by improving medical air compressor installed in SMART ventilator.
  
  
  METHODS
  Installed sensors control equipment, etc., in the gas circuit of air compressor programmed with C language, controlled switching device by ventilator MCU.
  
  
  RESULTS
  When central gas supply instrument broke down and caused supply pressure decrease below the lower limit, ventilator can automatically switch to air compressor supply at the same time in alarm; when pressure of central gas supply returning to normal ventilator can intelligently switch back to central gas supply.
  
  
  CONCLUSIONS
  The installation of air switching device increases the intelligence of ventilator, and avoids ventilator abnormal phenomenon caused by air factors.
authors.affiliation: The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China.
authors.forename: Bo
authors.initials: B
authors.lastname: Liu
authors.forename: Jiawang
authors.initials: J
authors.lastname: Wang
mesh_terms: D001185:Artificial Intelligence; D004867:Equipment Design; D005740:Gases; D011312:Pressure; D012122:Ventilators, Mechanical
chemical_list: D005740:Gases