The invention belongs to the technical field of airplane oxygen/life support system design, and relates to an airplane remaining oxygen supply time display method, which comprises the following steps: receiving temperature and pressure information uploaded by an oxygen source pressure sensor, respectively calculating oxygen compression factors of two groups of high-pressure oxygen bottles under original pressure and temperature, then calculating oxygen compression factors in a normal state, and displaying the oxygen compression factors in the normal state; calculating the correction pressure of the two groups of high-pressure oxygen bottles according to the oxygen compression factor in the normal state, calculating the residual oxygen supply flow according to the oxygen source correction pressure and the oxygen source low-pressure alarm pressure, and obtaining the cabin temperature and the cabin pressure sent by the aircraft environment control system; then the inspiration amount of each crew in the NTPD state is calculated according to the inspiration amount of each crew in the BTPS state, the total volume of the two sets of high-pressure oxygen cylinders is obtained, the remaining oxygen supply time is calculated according to the inspiration amount of each crew in the NTPD state, the number of crew units and all correction coefficients, the calculation time is short, calculation is accurate, and the crew units can conveniently look up the remaining oxygen supply time.

    本申请属于飞机氧气/生命保障系统设计技术领域,为一种飞机剩余供氧时间显示方法,接收氧源压力传感器上传的温度、压力信息,分别计算两组高压氧气瓶的原始压力和温度下的氧气压缩因子,而后计算正常状态下的氧气压缩因子,再根据正常状态下的氧气压缩因子计算两组高压氧气瓶的修正压力,根据氧源修正压力和氧源低压告警压力计算剩余供氧流量,获取飞机环控系统发出的座舱温度和座舱压力,而后根据BTPS状态下每名机组人员的吸气量计算NTPD状态下每名机组人员的吸气量,获取两组高压氧气瓶的总容积,根据NTPD状态下每名机组人员的吸气量、机组人数和各修正系数,计算剩余供氧时间,计算时间短、计算精确,方便机组人员查阅。


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    Titel :

    Method for displaying remaining oxygen supply time of airplane


    Weitere Titelangaben:

    一种飞机剩余供氧时间显示方法


    Beteiligte:
    WANG WEI (Autor:in) / YANG YIFAN (Autor:in) / YANG LE (Autor:in) / ZHU YINGYING (Autor:in)

    Erscheinungsdatum :

    2023-04-28


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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