SYSTEM OF WIRELESS TRANSMISSION OF SIGNALS ON APPLICATION OF IMPACT AT FENCING ON SABERS Russian patent published in 2017 - IPC H04H60/76 A63B69/02 

FIELD: radio engineering, communication.

SUBSTANCE: wireless signaling system for strikes at saber fencing contains: a receiving device and two transmitting devices. Each betrayer contains: a saber with sensors of chopping, cutting and piercing strokes, two transmitters and two antennas. The receiver includes: two antennas, two narrowband filters, two mixers, a local oscillator, two intermediate frequency signal amplifiers, two detectors, a circuit that records the coincidence of the edges of the impulse signals of the strikes applied, the first and second relay pairs, each relay has the input and output signals of the strikes, a control signal input and a normally closed contact, a circuit that detects the front of the first pulse signal of the strikes applied, has two inputs of signals of strikes applied and two cross outputs of the control signals, the third pair of relays, each of which has the input and output signals of the strikes applied, the input of the control signal, the normally open contact and the block contact, two electric buttons with normally closed contacts. In each channel, the antenna, filter, mixer, intermediate frequency amplifier, detector, one relay of each pair and the indicator are connected in series. The inputs of the circuit, which registers the coincidence of the edges of the pulse signals of the strikes, are connected to the outputs of the detectors, and the output of the control signal of this circuit is connected to the inputs of the control signals of the first pair of relays. The inputs of the circuit detecting the front of the first impulse signal of the strikes are connected to the outputs of the second relay pair, and the outputs of its control signals are cross-connected with the control inputs of the relay of the same pair. The contacts of the electric knobs are connected to the control outputs of the third relay pair.

EFFECT: electronic definition of the opponent, the first striker, recording of cutting and cutting strokes, simplification of the system design.

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