Device for detecting the nature of a blow and measuring its force, method for using same and use thereof for refereeing a sport
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Abstract
The invention concerns a device and a method for detecting the nature of a blow and for measuring its force. The device includes a first sensor integral with a stationary or mobile target for detecting whether the target has been impacted by a mobile body and a second sensor intergral with the mobile body for detecting whether the mobile body grazes the target or strikes it. The moving body includes a material highly permeable to a magnetic field and the target includes means for generating a magnetic field in its vicinity, the magnetic properties of the target being detected by using a magnetic field detector. The invention is useful for refereeing a combat sport.
24 Citations
21 Claims
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1-10. -10. (canceled)
- 11. Apparatus for detecting presence and measuring strength of an impact of a blow struck by a mobile body on a mobile or stationary target, comprising a first sensor integral with the target for detecting whether the target has been impacted by the mobile body and producing an electric image of the impact, the first sensor comprising a variable capacitor, and a second sensor integral with the mobile body for detecting whether the mobile body grazes the target or strikes it, the second sensor comprising a variable induction coil.
- 18. A method for detecting nature of an impact of a blow struck by a mobile body on a mobile or stationary target, comprising creating a magnetic field on the target, providing a first sensor comprising a variable capacitor integral with the target for detecting whether the target has been impacted by the mobile body and producing an electric image of the impact, wherein impact of the mobile body on the capacitor varies capacity of the capacitor, providing a second sensor comprising a variable induction coil integral with the mobile body for detecting whether the mobile body grazes the target or strikes it, wherein variation of strength of the magnetic field varies inductance of the induction coil, memorizing the capacity variation in a 16 bit register, and memorizing information about the inductance variation by one bit in a low level latch if the mobile body is present and in a high level latch if the mobile body is absent.
Specification