Develop　high-precision　air　pressure　monitoring　sensors　for　upperair　meteorological　detection,　break　through　cost　control　and　adaptability　to　upper-air　environment,　and　form　products　with　independent　intellectual　property　rights　and　stable　and　reliable　quality.　For　its　slow　collection　speed,　need　manual　operation,　can　not　be　automatically　collected.　An　automatic　data　acquisition　system　is　designed　for　the　new　upper-air　meteorological　sensor.　Because　the　sensor　is　controlled　by　two　variables,　pressure　and　temperature,　a　single　variable　method　is　adopted　to　measure　the　pressure　characteristics　at　each　temperature　point.　Each　sensor　number　obtained　first　and　create　the　corresponding　data　table,　on　the　basis　of　setting　the　current　temperature　of　constant　temperature　trough,　and　according　to　the　requirements　set　step　to　determine　the　temperature　characteristic　points,　after　waiting　for　its　stability,　and　according　to　the　requirements　set　pressure　feature　points,　judge　stability　after　collecting　data,　the　machine　according　to　the　communication　protocol　parsing,　get　the　final　accurate　measuring　data　and　deposited　in　the　database.　In　order　to　test　the　effectiveness　of　the　system,　a　serial　port　assistant　is　used　for　simulation.　The　results　show　that　the　acquisition　system　can　automatically　collect　data　of　weather　sounding　sensor　without　manual　operation.　The　acquisition　speed　is　fast　and　the　efficiency　is　high,　which　greatly　reduces　the　manual　operation.　Therefore,　it　has　strong　operational　significance　and　is　worth　popularizing.　©　2019　Association　for　Computing　Machinery.