Asthma, a chronic lung disease which causes severe problem in breathing. The asthma cause due to lung airway constriction by triggers, such as allergic reactions to dust or pollen. The asthma never diagnose at early stage since symptoms such as coughing confuse with cold. The Asthma only diagnose when shortness of breath occur and it causes an examination by a physician. In this paper, we propose a non-invasive way to diagnose asthma at early stage via bio magnetic signal acquired from a person lung. The mucus in airway of lung clogs airway during constriction. The Giant magnetoresistance (GMR) sensor place on lung region and bio-magnetic emission from mucus in lung acquire. The biomagnetic signal of mucus in lung constricted airway change due to mucus normal and dynamic condition. The constricted lung airway cure by Ventolin entolin inhaler, which makes constricted muscle to relax and provide airflow. The mucus accumulation and mucus flow provide varying bio-magnetic emission. The bio-magnetic emission change correlate with asthma through RADWT subband energy level. The RADWT subband energy level and airflow meter test model with linear regression for lung airway opening and asthma diagnosis.

哮喘，一种慢性肺部疾病，会导致严重的呼吸问题。哮喘是由触发器引起的肺气道收缩引起的，例如对粉尘或花粉的过敏反应。由于咳嗽与感冒等症状混淆，哮喘从未在早期诊断。哮喘仅在呼吸急促发生时进行诊断，并需要医生进行检查。在本文中，我们提出了一种通过从人肺获取的生物磁信号在早期诊断哮喘的非侵入性方法。收缩期间肺气道粘液阻塞气道。巨磁阻（GMR）传感器位于肺区域，并从肺中的粘液中获取生物磁发射。由于粘液正常和动态情况，肺收缩气道中粘液的生物磁信号发生变化。Ventolin entolin吸入器可治疗狭窄的肺气道，使收缩的肌肉放松并提供气流。粘液积聚和粘液流动提供了变化的生物磁发射。通过RADWT子带能量水平，生物磁发射变化与哮喘相关。具有线性回归的RADWT子带能量水平和气流计测试模型用于肺气道开放和哮喘诊断。