Patent ID: 7355519

Claim:
A body force alarming apparatus for warning of excessive impact on a user to prevent injuries comprising: a housing; a power supply; a piezo sensor; a controller; an output generator; and a microcontroller; wherein said piezo sensor is accommodated within a user's shoe and connected to said controller; wherein said piezo sensor, controller and said output generator are connected to said power supply; wherein said controller, output generator and power supply are accommodated within said housing; wherein said controller is connected to said output generator, wherein said controller is set to generate a signal to the output generator when a threshold level of force signal is received from said piezo sensor; wherein said sensor signals said controller when force from an impact is applied to said piezo sensor; and wherein said controller signals said output generator when one or more signals indicating threshold levels of force have been reached; and wherein said output generator generates a perceivable signal indicative of excessive impact in response to a signal from said controller and wherein said microcontroller, once activated by a user with a switch, performs the steps of: recording one or more amounts of impact for a predetermined period of time; averaging said amounts of impact recorded over said period of time; and setting the controller's feedback threshold to an amount based on the average value.