Method for detecting wear of a tyre

A method for detecting wear of a tyre that includes at least one sonic wear gauge emitting, based on a predetermined radial wear threshold, an acoustic footprint noise that includes a plurality of acoustic footprint elementary frequency components, the method comprising steps of:

• acquiring an acoustic signal that includes an acoustic footprint noise, the acoustic signal including a plurality of elementary frequency components;
• enumerating a plurality of series of elementary frequency components, each enumerated series of the enumerated plurality of series forming at least a part of the elementary frequency components of the acoustic signal;
• selecting an acoustic footprint series from among the enumerated plurality of series;
• determining a local confidence index of the acoustic footprint series;
• and
• emitting a tyre wear alert, if a confidence index, which is determined based the local confidence index, is in absolute value greater or less than a predetermined threshold associated with the confidence index.

A non-transient computer-readable storage medium storing code instructions that, when executed by a computer, causes the computer to implement a method for detecting wear of a tyre that includes at least one sonic wear gauge emitting, based on a predetermined radial wear threshold, an acoustic footprint noise that includes a plurality of acoustic footprint elementary frequency components, the method including steps of:

• acquiring an acoustic signal that includes an acoustic footprint noise, the acoustic signal including a plurality of elementary frequency components;
• enumerating a plurality of series of elementary frequency components, each enumerated series of the enumerated plurality of series forming at least a part of the elementary frequency components of the acoustic signal;
• selecting an acoustic footprint series from among the enumerated plurality of series;
• determining a local confidence index of the acoustic footprint series;
• and
• emitting a tyre wear alert, if a confidence index, which is determined based the local confidence index, is in absolute value greater or less than a predetermined threshold associated with the confidence index.

A method for providing tyre wear detection, the method comprising steps of:

• storing code instructions on a non-transient computer-readable storage medium, wherein the code instructions, when executed by a computer, causes the computer to implement a wear-detection method for detecting wear of a tyre that includes at least one sonic wear gauge emitting, based on a predetermined radial wear threshold, an acoustic footprint noise that includes a plurality of acoustic footprint elementary frequency components, the wear-detection method including steps of:
• acquiring an acoustic signal that includes an acoustic footprint noise, the acoustic signal including a plurality of elementary frequency components,
• enumerating a plurality of series of elementary frequency components, each enumerated series of the enumerated plurality of series forming at least a part of the elementary frequency components of the acoustic signal,
• selecting an acoustic footprint series from among the enumerated plurality of series,
• determining a local confidence index of the acoustic footprint series, and
• emitting a tyre wear alert, if a confidence index, which is determined based the local confidence index, is in absolute value greater or less than a predetermined threshold associated with the confidence index;
• and
• enabling the code instructions to be accessed via a telecommunication network.