EP0199766A4 - Modulateur electronique de frequence. - Google Patents

Modulateur electronique de frequence.

Info

Publication number
EP0199766A4
EP0199766A4 EP19850905312 EP85905312A EP0199766A4 EP 0199766 A4 EP0199766 A4 EP 0199766A4 EP 19850905312 EP19850905312 EP 19850905312 EP 85905312 A EP85905312 A EP 85905312A EP 0199766 A4 EP0199766 A4 EP 0199766A4
Authority
EP
European Patent Office
Prior art keywords
frequency
electronic
band frequency
crop pests
resistor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19850905312
Other languages
German (de)
English (en)
Other versions
EP0199766A1 (fr
Inventor
Alan Fry
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HI-TEC CONTROL SYSTEMS PTY Ltd
HI TEC CONTROL SYSTEMS
Original Assignee
HI-TEC CONTROL SYSTEMS PTY Ltd
HI TEC CONTROL SYSTEMS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HI-TEC CONTROL SYSTEMS PTY Ltd, HI TEC CONTROL SYSTEMS filed Critical HI-TEC CONTROL SYSTEMS PTY Ltd
Publication of EP0199766A1 publication Critical patent/EP0199766A1/fr
Publication of EP0199766A4 publication Critical patent/EP0199766A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
    • A01M29/16—Scaring or repelling devices, e.g. bird-scaring apparatus using sound waves
    • A01M29/18—Scaring or repelling devices, e.g. bird-scaring apparatus using sound waves using ultrasonic signals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/0207—Driving circuits
    • B06B1/0223—Driving circuits for generating signals continuous in time
    • B06B1/0269—Driving circuits for generating signals continuous in time for generating multiple frequencies
    • B06B1/0276—Driving circuits for generating signals continuous in time for generating multiple frequencies with simultaneous generation, e.g. with modulation, harmonics
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/023—Generators characterised by the type of circuit or by the means used for producing pulses by the use of differential amplifiers or comparators, with internal or external positive feedback
    • H03K3/0231—Astable circuits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
    • B06B2201/70—Specific application
    • B06B2201/75—Repelling animals, insects, humans

Definitions

  • the present invention relates to an electronic frequency modulator of the type wherein a lower band frequency is transmitted on a carrier wave being an upper band frequency.
  • the present invention has particular application in its use as an electronic scarecrow, however it will be apparent to those skilled in the art that the present invention is of wider application as a deterrent to animal and insect crop pests, and is not therefore to be li itively construed by the following detailed description of its use as an electronic scarecrow.
  • an electronic frequency modulator which combines a lower band frequency with an upper band frequency to produce a square wave output on transmission from a transducer, preferably a peizo ceramic.
  • a method of protecting crops from crop pests using an electronic frequency modulator which combines a lower band frequency with an upper band frequency to produce a square wave output on transmission from a transducer, preferably a peizo ceramic.
  • the present invention generates acoustically pressurized air waves which affect the muscular and skeletal structure of the bird or bat in flight and the unpleasant sensation causes the bird or bat to divert its flight path to avoid the effect.
  • the ultrasonic frequency effective in controlling crop pests was found to lie within the following ranges. marsupials 10 - 25 KHz birds 15 - 35 KHz insects 40 - 80 KHz
  • Fig. 1 is a schematic view of the preferred embodiment in use as an electronic scarecrow.
  • Fig. 2 is a circuit diagram of the electronic circuitry of the embodiment of Fig. 1.
  • the electronic scarecrow shown in Fig. 1 is used in a ten acre paddock and is designed to withstand extremes of weather and the normal handling of orchardists and farmers.
  • the electronic scarecrow can be run either continuously or can be preset with a programmable timer to only operate when the crop pests are most prevalent. For larger operations several devices as shown in Fig. 1 can be spaced throughout the orchard or farm.
  • the commercial electronic scarecrow comprises a plurality of known transducer heads 1, mounted on a support column 2 by means of adjustable mount 3.
  • the support column 2 is stayed to the ground by conventional stays 4 supported on plate 5 on support column 2.
  • a power supply in the form of a battery 6 is connected to the power pack 7 containing the electronic timer switch, battery level indicator and circuitry as detailed in Fig. 2.
  • circuitry comprises the following known electronic components: COMPONENT LIST R15 10 ohm 1/4 w resistor Rl 10 ohm 1/4 w resistor
  • R23 from IK to 150K fixed component depending on unit refer to data sheet Rll 4.7K 1/4 w resistor R6 4.7K 1/4 w resistor R24 220K 1/4 w resistor R10 68K 1/4 w resistor R30 470K 1/4 w resistor R27 470K 1/4 w resistor R9 560K 1/4 w resistor R20 1M w resistor
  • the present invention is a combination of two frequencies, an upper and a lower band frequency modulated together to produce an FM effect on transmission from a piece of peizo ceramic.
  • the lower band frequency referred to as infrasonic frequency
  • infrasonic frequency is produced through a linear ramp in a 555 IC working as an astable operation which when triggered produces a pulse applied to an IC LM 3900 (op-amp) producing a staircase generation system which ramps down from a 12 volts.
  • a zena diode Dl supplies the offset and prevents pin 5 of the 566 chip approaching the 12 volt locking up the ramp output of T5 producing a linear range of sweep voltage.
  • the combination is then applied to a common output amp configuration of known circuitry type.
  • the infrasonic signal is to be at the same pulse length as the bird's wing beat. Any alteration to that frequency will have little effect on controlling of birds.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Birds (AREA)
  • Insects & Arthropods (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Catching Or Destruction (AREA)

Abstract

Un modulateur électronique de fréquence combine une bande inférieure de fréquence avec une bande supérieure de fréquence pour produire une sortie d'onde rectangulaire dans la transmission d'un transducteur. Cette invention peut constituer un procédé de protection de cultures contre des animaux nuisibles.
EP19850905312 1984-10-26 1985-10-28 Modulateur electronique de frequence. Withdrawn EP0199766A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU7858/84 1984-10-26
AUPG785884 1984-10-26

Publications (2)

Publication Number Publication Date
EP0199766A1 EP0199766A1 (fr) 1986-11-05
EP0199766A4 true EP0199766A4 (fr) 1987-04-29

Family

ID=3770813

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850905312 Withdrawn EP0199766A4 (fr) 1984-10-26 1985-10-28 Modulateur electronique de frequence.

Country Status (2)

Country Link
EP (1) EP0199766A4 (fr)
WO (1) WO1986002526A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1211657B (it) * 1987-07-16 1989-11-03 Alfano Giuseppa Apparecchiatura elettronica partico larmente adatta per la derattizzazione
GB8725154D0 (en) * 1987-10-27 1987-12-02 Pal Int Ltd Bird dispersal apparatus
US5505214A (en) * 1991-03-11 1996-04-09 Philip Morris Incorporated Electrical smoking article and method for making same
US5327675A (en) * 1992-05-22 1994-07-12 International Flavors & Fragrances Inc. Use of alkyl cyclopentanone and phenyl alkanol derivative-containing compositions for repelling blood feeding arthropods and apparatus for determining repellency and attractancy of semiochemicals against and for blood feeding arthropods
US5278537A (en) * 1992-07-27 1994-01-11 Winner International Corporation Electronic alarm for avoiding collision with animals in a non-destructive manner
AU3067695A (en) * 1994-09-28 1996-04-18 Jean Gilles Jocelyn Courtin Ultrasonic flea repeller
DE29721995U1 (de) * 1997-12-13 1999-02-18 Nopper, Johannes, 78194 Immendingen Gerät zur Verhinderung von Schäden durch bestimmten Tierarten
US7012506B2 (en) * 2003-04-14 2006-03-14 Woodstream Corporation Ultrasonic pest repeller
US10888084B2 (en) 2015-07-15 2021-01-12 Nrg Systems, Inc. Ultrasonic bat deterrent system
CN108348158B (zh) 2015-11-03 2022-02-08 Nrg系统股份有限公司 用于野生动物阻吓的宽带超声换能器设备及其使用方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2022056A1 (de) * 1970-05-05 1971-11-18 Delross Electronic Corp Verfahren und Vorrichtung zur Schaedlingsbekaempfung
FR2338647A1 (fr) * 1976-01-22 1977-08-19 Anselme Gilbert Procede et appareil permettant d'eloigner les petits animaux indesirables
FR2342658A1 (fr) * 1976-03-05 1977-09-30 Joseph Hirs Dispositif a ultra-sons pour eloigner les oiseaux
FR2407667A2 (fr) * 1977-11-04 1979-06-01 Bjedic Jean Procede et dispositif permettant d'eloigner certains animaux indesirables
EP0101059A1 (fr) * 1982-08-11 1984-02-22 B & M Lizenzgesellschaft mbH Epouvantails pour les animaux

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB642097A (en) * 1945-10-25 1950-08-30 Sadir Carpentier Improvements in or relating to signal transmission systems
US2856586A (en) * 1953-08-13 1958-10-14 Gen Precision Lab Inc Mixer-modulator
US3300733A (en) * 1964-12-16 1967-01-24 Monsanto Co Relaxation oscillator modulated by another relaxation oscillator
GB1265441A (fr) * 1970-03-04 1972-03-01
US3872472A (en) * 1973-12-11 1975-03-18 Robert G Moschgat Ultrasonic system for repelling noxious fauna
US4186387A (en) * 1976-11-04 1980-01-29 Micro-Sonics, Inc. Ultrasonic pest repellent method and system
AU536442B2 (en) * 1979-09-27 1984-05-10 David Carson An alarm
FR2479652A1 (fr) * 1980-04-08 1981-10-09 Relle Michel Procede et dispositif d'eloignement des animaux nuisibles
JPS602134A (ja) * 1983-06-17 1985-01-08 早川　英雄 有害動物の威嚇装置
AU579333B2 (en) * 1983-11-28 1988-11-24 Paruna Pty Limited Pest control device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2022056A1 (de) * 1970-05-05 1971-11-18 Delross Electronic Corp Verfahren und Vorrichtung zur Schaedlingsbekaempfung
FR2338647A1 (fr) * 1976-01-22 1977-08-19 Anselme Gilbert Procede et appareil permettant d'eloigner les petits animaux indesirables
FR2342658A1 (fr) * 1976-03-05 1977-09-30 Joseph Hirs Dispositif a ultra-sons pour eloigner les oiseaux
FR2407667A2 (fr) * 1977-11-04 1979-06-01 Bjedic Jean Procede et dispositif permettant d'eloigner certains animaux indesirables
EP0101059A1 (fr) * 1982-08-11 1984-02-22 B & M Lizenzgesellschaft mbH Epouvantails pour les animaux

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO8602526A1 *

Also Published As

Publication number Publication date
EP0199766A1 (fr) 1986-11-05
WO1986002526A1 (fr) 1986-05-09

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19860703

AK Designated contracting states

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A4 Supplementary search report drawn up and despatched

Effective date: 19870429

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19880503

RIN1 Information on inventor provided before grant (corrected)

Inventor name: FRY, ALAN