Method for dynamically adjusting a Bluetooth connection interval applied to ECG measuring instrument

An ECG measuring instrument for executing method for dynamically adjusting a Bluetooth connection interval, comprising, an ECG signal acquisition circuit, an analog to digital (A/D) conversion chip, a main control module, a Bluetooth communication module, and a master machine, wherein the main control module comprises an automatic tune bandwidth system (ATBS) module, wherein the ECG measuring instrument comprising:

• S1. initializing a Bluetooth module in a slave machine of the ECG measuring instrument, the Bluetooth module entering an executable working status after self-inspection;
• S2. setting a Bluetooth system connection status based on a system status marking event sent from the slave machine to a master machine;
• S3. according to the connection status determined in step S2, the master machine and the slave machine entering a low-speed connection status after they complete data transmission in a high-speed connection status;
• S4. after the master machine and the slave machine enter the low-speed connection status, implementing interrupt processing between the master machine and the slave machine if no data transmission occurs between the master machine and the slave machine over 2 millisecond (ms);
• and
• S5. after interrupt processing is implemented in step S4, going back to step S2 if the connection needs to be restored;
• wherein step S2 further comprises:
• S21. determining a type of the system status marking event;
• S22. determining a transmission speed of data transmission of the event;
• S23. determining a transmission connection status type of the event;
• and
• S24. for an event transmitted in a high-speed connection status, further adjusting a data connection interval of the event.