Capacitive relay takeoff swimming platform sensor system
First Claim
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1. A capacitive takeoff swimming sensor system, the system comprising:
- a sensor mat including a swimmer occupiable region along the surface of the sensor mat to capacitively detect the presence of a swimmer and a perimeter about the swimmer occupiable region;
a sensor circuit in electrical communication with the sensor mat, the sensor circuit including an automatic recalibration charge-transfer touch integrated circuit for determining a first level where the mat is vacant and for determining a second sensor level where a swimmer is occupying the occupiable region on the mat;
a power supply; and
a monitor circuit that determines the takeoff of a swimmer from the sensor mat by monitoring the change in capacitance level in the swimmer occupiable region based on the first and second sensor levels monitored by the recalibration circuit.
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Abstract
A capacitive relay takeoff swimming platform sensor system including multiple stations, timing devices and capacitive sensor devices where the presence or departure of a second swimmer on a relay takeoff swimming platform is sensed by the change in capacitance of a sensor mat and compared to the arrival of a first swimmer at a touchpad sensor. The system includes automatic recalibration of sensing, such that presence of a swimmer is sensed and then system recalibrated so as to detect departure of the swimmer. The sensor mat includes an polycarbonate perimeter.
17 Citations
34 Claims
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1. A capacitive takeoff swimming sensor system, the system comprising:
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a sensor mat including a swimmer occupiable region along the surface of the sensor mat to capacitively detect the presence of a swimmer and a perimeter about the swimmer occupiable region; a sensor circuit in electrical communication with the sensor mat, the sensor circuit including an automatic recalibration charge-transfer touch integrated circuit for determining a first level where the mat is vacant and for determining a second sensor level where a swimmer is occupying the occupiable region on the mat; a power supply; and a monitor circuit that determines the takeoff of a swimmer from the sensor mat by monitoring the change in capacitance level in the swimmer occupiable region based on the first and second sensor levels monitored by the recalibration circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification