Functional parameters of the system: (1) Real-time monitoring of ECG, blood pressure, respiratory rate, pulse oximetry, exercise distance and number of steps of patients in the 6-minute walking test under the state of exercise; automatic analysis of patients' respiratory status and fatigue, real-time monitoring and analysis of blood pressure, blood oxygen, ECG through the latest sensing technology, and assessment of patients' exercise endurance; (2) According to the actual situation of the 6-minute test site, the length of the 6-minute walking test can be set flexibly; (3) ★Intelligent step length algorithm calculates the walking distance; (4) Intelligent automatic and accurate distance measurement, charting and step counting; (5) Intelligent voice navigation and alarm during the test; (6) Metabolic equivalent METS value calculation; (7) Lung function evaluation (FVC, FEV1, FEV1/FVC, PEF, FEF25, FEF50, FEF75, FEF2575 and other parameters), providing Brog scale fatigue and respiratory rating; (8) Automatically issue 6-minute walking test monitoring report, ECG analysis report, lung function test report; (9) ★ Heart rate variability analysis function, and issued HRV analysis report, the report contains a scatter plot, time domain and frequency domain analysis indicators, RR interval distribution histogram; (10) ★ Intelligent prescription development function: exercise prescription, drug prescription, nutritional prescription, psychological prescription, sleep guidance, smoking cessation and alcohol restriction of five major prescriptions for the model, to provide intelligent development of integrated prescription guidance; (11) ★ Instruments for dynamic multi-parameter integrated all-in-one machine monitoring: with multi-parameter real-time monitoring, real-time recording function, dynamic 12-lead ECG, dynamic blood pressure, blood oxygen, pedometer circle monitoring using an integrated monitoring device. (12) ★ data synchronization: support offline online automatic data synchronization of multiple devices;