An audio apparatus and a control method therefor are provided. The present audio apparatus comprises: a vibration part for providing audio using vibration; a sensing part for sensing one or more of the material and the thickness of an object to which the audio apparatus is attached; a pressure regulation part for regulating the pressure that is applied to the object by the vibration part; and a processor for controlling the pressure regulation part in order to regulate the pressure applied to the object by the vibration part based on one or more of the material and the thickness of the object that is sensed by the sensing part.

An audio apparatus and a control method therefor are provided. The present audio apparatus comprises: a vibration part for providing audio using vibration; a sensing part for sensing one or more of the material and the thickness of an object to which the audio apparatus is attached; a pressure regulation part for regulating the pressure that is applied to the object by the vibration part; and a processor for controlling the pressure regulation part in order to regulate the pressure applied to the object by the vibration part based on one or more of the material and the thickness of the object that is sensed by the sensing part.

A method for evaluating noise of a glass run of an automobile door includes: detecting oscillation of the door glass by a sensor for the door glass and then storing the oscillation as an oscillatory wave form of the door glass and detecting oscillation of the frame by a sensor for the frame and then storing the oscillation as an oscillatory wave form of the frame, with the glass run coupling to the automobile door; synthesizing the oscillatory wave form of the door glass and the oscillatory wave form of the frame, picking out relative oscillation of the door glass in relation to the frame and storing the relative oscillation as a synthesized oscillatory wave form; making oscillation corresponding to the synthesized oscillatory wave form by an oscillator and oscillating the door glass with the automobile stopped; and detecting sound of the oscillation by a microphone.

A method for evaluating noise of a glass run of an automobile door includes: detecting oscillation of the door glass by a sensor for the door glass and then storing the oscillation as an oscillatory wave form of the door glass and detecting oscillation of the frame by a sensor for the frame and then storing the oscillation as an oscillatory wave form of the frame, with the glass run coupling to the automobile door; synthesizing the oscillatory wave form of the door glass and the oscillatory wave form of the frame, picking out relative oscillation of the door glass in relation to the frame and storing the relative oscillation as a synthesized oscillatory wave form; making oscillation corresponding to the synthesized oscillatory wave form by an oscillator and oscillating the door glass with the automobile stopped; and detecting sound of the oscillation by a microphone.

The present disclosure relates to methods and devices for identifying an action. In some embodiments, a method for identifying an action includes: recording vibration trajectory information, wherein the vibration trajectory information corresponds to vibration of at least a portion of an intelligent device from a start of a vibration event to stabilization of the vibration event; determining whether the vibration is a damping vibration based on the vibration trajectory information; and in response to determining that the vibration is a damping vibration, determining that the vibration is caused by a user's trigger action, or in response to determining that the vibration is not a damping vibration, determining that the vibration is not caused by the user's trigger action.

The present disclosure relates to methods and devices for identifying an action. In some embodiments, a method for identifying an action includes: recording vibration trajectory information, wherein the vibration trajectory information corresponds to vibration of at least a portion of an intelligent device from a start of a vibration event to stabilization of the vibration event; determining whether the vibration is a damping vibration based on the vibration trajectory information; and in response to determining that the vibration is a damping vibration, determining that the vibration is caused by a user's trigger action, or in response to determining that the vibration is not a damping vibration, determining that the vibration is not caused by the user's trigger action.

Metallic structures having acoustic-based tamper detection sensors are disclosed. The acoustic-based tamper detection sensors may have contact microphones in direct contact with the metallic structures. Upon detection of tamper based on acoustic signals, the tamper detection sensors may broadcast a tamper warning signal or data and/or store the tamper warning data in a memory.

A boiling detection and alert system and method for cooking applications. The system includes a vibration sensor assembly to be coupled to a piece of cookware to detect the boiling condition of the cookware. The system alerts a remote operator of changes in boiling condition so that the operator may leave the vicinity of the cookware and not miss the onset of boiling or forget about the cookware that has boiled dry. The method includes steps for detecting the boiling state of cookware and alerting a remote operator of changes in the boiling state.

A system for continuously monitoring at least one machine including a plurality of magnetic sensors synchronously sensing magnetic fields emitted by at least one machine, the plurality of magnetic sensors sensing the magnetic fields along a corresponding plurality of channels and outputting magnetic field emission signals corresponding to the magnetic fields, a signal analyzer receiving at least a portion of the magnetic field emission signals and performing analysis of the magnetic field emission signals, the signal analyzer providing an output based on the analysis, the output including at least an indication of a condition of the at least one machine and a control module receiving the indication of the condition and initiating at least one of a repair event on the at least one machine, an adjustment to a maintenance schedule of the at least one machine and an adjustment to an operating parameter of the at least one machine based on the indication, whereby efficacy of the at least one machine is improved.

A system for continuously monitoring at least one machine including a plurality of magnetic sensors synchronously sensing magnetic fields emitted by at least one machine, the plurality of magnetic sensors sensing the magnetic fields along a corresponding plurality of channels and outputting magnetic field emission signals corresponding to the magnetic fields, a signal analyzer receiving at least a portion of the magnetic field emission signals and performing analysis of the magnetic field emission signals, the signal analyzer providing an output based on the analysis, the output including at least an indication of a condition of the at least one machine and a control module receiving the indication of the condition and initiating at least one of a repair event on the at least one machine, an adjustment to a maintenance schedule of the at least one machine and an adjustment to an operating parameter of the at least one machine based on the indication, whereby efficacy of the at least one machine is improved.