초록 ▼

The invention concerns a procedure for emission of jamming signals for jamming of laser-based measuring instruments as a result of which systems for distance or speed measurement of targets using laser reflection receive further signals (jamming signals) in addition to the laser signals emitted by t

The invention concerns a procedure for emission of jamming signals for jamming of laser-based measuring instruments as a result of which systems for distance or speed measurement of targets using laser reflection receive further signals (jamming signals) in addition to the laser signals emitted by the measuring system itself and then reflected at the target. The invention is applicable to affect the distance or speed measurement of targets by means of laser-based measuring instruments, where the measurement procedure of the respective laser-based measuring system is jammed or even prevented.

대표청구항 ▼

1. A procedure for generation and emission of jamming signals directed toward a laser-based measuring system that determines distance and/or speed of targets by sending laser signals to a target from a laser transmitter and receiving, at a laser detector, the laser signals reflected from the target,

1. A procedure for generation and emission of jamming signals directed toward a laser-based measuring system that determines distance and/or speed of targets by sending laser signals to a target from a laser transmitter and receiving, at a laser detector, the laser signals reflected from the target, said procedure comprising the step of:emitting jamming signals in a direction of the laser-based measuring system, the jamming signals being generated by a plurality of light emitting diodes (LEDs) each operating within a wavelength range of the laser transmitter of the measuring system to be jammed, said LEDs being driven by at least two signal generators which produce periodical signals and at least two of these periodical signals differing from each other by a master frequency, whereby the composite of the periodical signals is characterized by a non-constant period. 2. A method jamming a laser-based measuring system that determines a distance and/or speed of targets by sending laser signals to a target from a laser transmitter and receiving, at laser detector, the laser signals reflected from the target, the method comprising the steps of:generating at a target, periodic signals using at least two signal generators, at least two of the periodic signals differing from each other by a master frequency such that the composite of the periodic signals exhibits a non-constant time spacing, the periodic signals constituting jamming signals; emitting, by a plurality of emission components operating within a wavelength range of the laser-based measuring system and driven by the signal generators, the jamming signals toward the law-based measuring system. 3. A procedure for generation and emission of jamming signals directed toward a laser-based measuring system that determines distance to and/or speed of targets using laser reflection, the procedure comprising:emitting jamming signals in a direction of a laser-based measuring system from a plurality of optical emission component, operating within a wavelength range of the measuring system to be jammed, the optical emission components being driven by at least two signal generators that produce periodic signals, at least two of the signals having the same master frequency. 4. Procedure of claim 1, wherein at least two signal generators produce pulses.5. Procedure of claim 1, wherein at least one signal generator produces pulses with non-constant time spacing to each other.6. Procedure of claim 1, wherein at least one signal generator produces pulses in a pseudo-random sequence.7. Procedure of claim 1, wherein at least two signal generators are time-synchronized to each other.8. Procedure of claim 4, wherein pulses generated by one of the signal generators differ in pulse width from pulses generated by another of the signal generators.9. Procedure of claim 1, wherein each signal generator drives the totality of the used optical emission components.10. Procedure of claim 1, wherein each signal generator drives any groups of the optical emission components.11. A procedure for generation and emission of jamming signals directed toward a laser-based measuring system that determines distance to and/or speed of targets using laser reflection from the targets, the procedure comprising:emitting jamming signals in a direction of a law-based measuring system by a plurality of optical emission components operating within a wavelength range of the measuring system to be jammed, the emitting step including driving the optical emission components by at least one signal generator, wherein at least one signal generator produces pulses with non-constant time spacing relative to each other. 12. Procedure of claim 11, wherein at least one signal generator produces pulses in a random or pseudo-random sequence.13. Procedure of claim 11, wherein at least one signal generator produces pulses of different pulse width.14. Procedure of claim 11, wherein at least one signal generator produces a signal selected from the group consisting of a modulated signal, a random signal and a pseudo-random signal.15. A procedure for generation and emission of jamming signals directed toward a laser-based measuring system for distance and/or speed measurement of targets using laser reflection, comprising the stop of:emitting jamming signals in a direction of laser-based measuring system by a plurality of optical emission components operating within a wavelength range of the measuring system to be jammed, the emitting step including driving the optical emission components by at least one signal generator, wherein at least one signal generator produces a time-variable signal, and wherein at least one signal generator produces a signal having one or more of the characteristics selected from the group consisting of non-constant amplitude, non-constant frequency, and non-constant phase. 16. Procedure of claim 15, wherein at least one signal generator produces a signal selected from the group consisting of a modulated signal, a noise signal, a random signal and a pseudo-random signal.17. A system for carrying out of a procedure for generation and emission of jamming signals directed toward a laser-based measuring system for distance and/or speed measurement of targets using laser reflection, said system comprising a plurality of light-emitting diodes operating within a wavelength range of the measuring system to be jammed; said plurality of light-emitting diodes being arranged under different angles in such a way that at least one combined radiation sector is formed by the combination of a plurality of radiation sectors of the individual light-emitting diodes.18. The system of claim 17, wherein said at least one combined radiation sector is developed in such manner, that every possible angle of approach to the target is illuminated by light-emitting diodes.19. The system of claim 17, and said plurality of light-emitting diodes being arranged in a mount, and said system further comprising a radiation-leaky, pane-styled covering arranged between the light-emitting diodes and any laser-based measuring system.20. System of claim 19, wherein said pane-styled covering is a pane of glass.21. System of claim 17, wherein a plurality of combined radiation sectors are formed from the combination of said plurality of radiation sectors and further individual light-emitting diodes, wherein all combined radiation sectors are arranged to emit light in generally the same direction.22. System of claim 17, further comprising at least one signal generator electrically connected with a first plurality of the plurality of light emitting diodes.23. A system of claim 22, wherein at least one signal generator is realized by using a digital signal processor.24. A system of claim 22, wherein a multiplexer is switched between at least one signal generator and the light-emitting diodes.25. A method for jamming a laser-based measuring system that determines distance to and/or speed of targets by sending laser signals to a target from a laser transmitter and receiving, at a laser detector, the laser signals reflected from the target, the method comprising the steps of:(a) generating, at a target, at least two periodic signals using at least two signal generators, at least two of the periodic signals differing from each other by a predetermined frequency; (b) generating, at the target, a plurality of light emitting diodes (LEDs) that emit radiation within a wavelength range, of the laser transmitter of the measuring system; and (c) driving said plurality LEDs with the at least two periodic signals to cause the LEDs to emit radiation toward the measuring system. 26. The method of claim 25 and wherein each of the plurality of LEDs has an individual radiation sector and wherein the plurality of LEDs are arranged so that their individual radiation sectors combine to define a total radiation sector.27. A method of jamming a laser-based measurement system that determines distance to and/or speed of a target by emitting toward the target a pulsed laser signal and detecting reflections of the pulsed laser signal from the target, the method comprising emitting pulsed radiation from the target toward the measurement system, the pulsed radiation having an electromagnetic wavelength within a wavelength range of the measurement system and being characterized by a sequence of emitted pulses having non-constant time spacing relative to each other.28. The method of claim 27 wherein the sequence of pulses are emitted by an emitter driven by a signal generator generating a signal characterized by a sequence of pulses having non-constant time spacing relative to each other.29. The method of claim 27 and wherein the sequence of pulses are emitted by an emitter driven by at least two signal generators each generating a signal characterized by a sequence of pulses, the signal of one signal generator having a pulse frequency different from that of the signal from the other signal generator, the composite of the signal from the two signal generators being characterized by a sequence of pulses having non-constant time spacing relative to each other.30. The method of claim 29 and wherein the at least two signal generators generate signals having pulse frequencies that differ from each other by a predetermined amount.