Abstract: A system for controlling a fluid flow includes a remote controlled fluid valve and a pedal unit. The remote controlled fluid valve includes a RCFV PCB configured to receive electromagnetic transmissions, a gear, an arms mechanism, flexible tube, and an engine for set in rotational motion the gear, wherein the rotational motion is transformed to linear motion by the arms mechanism, for pressing on the flexible tube and thus blocking the flexible tube to a fluid flow. The pedal unit includes a tact switch, and a PU PCB, wherein when the tact switch is pressed, the PU PCB is transmitting electromagnetic command signal, wherein the electromagnetic command signal is compatible with the electromagnetic transmissions. An additional option for operation of the remote controlled fluid valves is by means of a ray cut operating system, which also includes a ray transmitter, and a ray receiver and communication transmitter.

Abstract: A sports impact sensing target reports a sensed impact to a remote location without interference with the operation of like impact sensing targets that are proximately located. The sports impact target reports each sensed impact with a selected modulated signal that can be selected readily to distinguish it from the report signals produced by other proximate impact sensing targets.