Extension module for independently storing calibration data, component, and component calibration method

A component, comprising:

• an extension module, the extension module including
• a first interface configured to receive a first external input signal,
• a second interface configured to output a first output signal of the extension module,
• a signal processing circuit connected between the first interface and the second interface, and
• a first memory storing first calibration data, the first calibration data being associated with the extension module;
• and
• a main module including
• a third interface configured to be butted with the second interface,
• a second memory storing second calibration data, the second calibration data being associated with the main module, and
• a controller configured to communicate with the first memory to read the first calibration data.

A component calibration method for a component including a main module connected to an extension module, the component calibration method comprising:

• reading, by a controller of the main module, first calibration data stored in a first memory on the extension module in response to the component being powered on, the first calibration data being associated with the extension module;
• reading, by the controller of the main module, second calibration data stored in a second memory on the main module, the second calibration data being associated with the main module;
• combining the first calibration data and the second calibration data to form third calibration data;
• and
• storing the third calibration data on the main module as calibration data of the component.