JP2008017763A - Harmful animal-repelling system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a harmful animal-repelling system solving the problem that, in conventional technologies, although such a system can sustain its threatening effect to some extent, however, in this case, humans or livestock may be affected, therefore, the frequency of a threatening signal is randomly varied and an impact noise attributable to frequency's sharp drop and rise is included occasionally, thereby threatening effect on harmful animals can be sustained without acclimatizing them to the signal even with a low output and without affecting humans or livestock as well; however, even such a system has the drawback of being impossible to repel harmful animals due to their learning ability. <P>SOLUTION: The harmful animal-repelling system comprises a signal generator functioning to vary oscillating frequency between 0 to 40 kHz temporally at random in response to a control signal, a control circuit to generate a control signal in response to the above signal generated, a circuit 5 for amplifying the control signal, and a speaker 4 to transduce the output signal to a vibration. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention threatens harmful animals such as mice using a speaker, and can be surely threatened even if the harmful animals work their learning ability, expelling these harmful animals and preventing their invasion. It relates to an animal repelling device.

Conventionally, an oscillation circuit whose oscillation frequency changes in response to a control signal, a control circuit that includes a random signal generator and generates a control signal corresponding to the output random signal, and an electrical signal such as an acoustic signal The control circuit outputs a control signal output from the control circuit to the oscillation circuit to control the oscillation frequency. Among the randomly changing oscillation frequencies, the oscillation frequency is drastically reduced. There exists a threatening device for harmful animals (see, for example, Patent Document 1) that creates a threatening signal including a shocking sound part that turns into a simple ascent, converts the threatening signal into mechanical vibration by a transducer, and transmits the mechanical vibration.
Japanese Examined Patent Publication No. 63-16 (see claims, detailed description of the invention, and FIGS. 1 to 4)

However, in the conventional configuration, if the output of the threat signal is surely large enough, the threat effect can be sustained to some extent, but in this case, there is a risk of harming humans or livestock. By changing the frequency of the threat signal at random and sometimes including the impact sound part due to the sudden drop and rise of the frequency, harmful animals will not get used to this signal even at a small output, adversely affecting humans or livestock It is said that it is a threatening device for harmful animals that can sustain the threatening effects of harmful animals without affecting. However, this has the disadvantage that it cannot be repelled by the learning ability of harmful animals. For example, a rabbit has a learning ability and cannot be intimidated simply by changing the oscillation frequency randomly with a fluctuation range of about 2 to 3 KHz above and below the disgusting center frequency.
There was also a problem that it would cause harm to humans or livestock.

  On the other hand, the harmful animal repelling device according to the present invention stops the transmission of the repelling frequency or is harmful when humans or livestock enter to prevent harm to humans or livestock. It is intended to provide a harmful animal repelling device aiming at expansion of the installation location by adding a sensor circuit that functions time operation only when an animal enters, changing the operation of the repelling device at the installation location by adjusting sensitivity.

A first invention of the present invention for solving the above-mentioned problems is a harmful animal repelling device as described in claim 1, and is as follows.
A signal generator for arbitrarily changing the oscillation frequency between 0 KHz and 40 KHz with time in response to a control signal, a control circuit for generating a control signal in response to the signal, an amplifier circuit for amplifying the control circuit, And a speaker that converts an output signal into vibration.

The second invention of the present invention for solving the above-mentioned problems is a harmful animal repelling device as described in claim 2, and is as follows.
In addition to the invention described in claim 1, a configuration is provided in which a detection sensor that activates the harmful animal repelling device for a certain period of time only when the human being passes does not activate the harmful animal repelling device or when the harmful animal passes is provided. It is.

Since the harmful animal repelling apparatus according to the present invention is configured as described above, the following effects are achieved.
(1) Pests with learning ability can be reliably repelled.
(2) Even when a frequency that causes harm to humans or livestock is adopted, by providing a timer or sensor circuit that can stop the transmission of the frequency or operate for a time only when a harmful animal enters, It does not harm livestock.

  A signal generator for arbitrarily changing the oscillation frequency between 0 KHz and 40 KHz with time in response to a control signal, a control circuit for generating a control signal in response to the signal, an amplifier circuit for amplifying the control circuit, A harmful animal repelling device including a speaker that converts an output signal into vibration.

First, the harmful animal repelling device of the present invention will be described in detail.
FIG. 1 is a block diagram according to the first embodiment of the present invention, and FIG. 2 is a block diagram according to the second embodiment of the present invention.
In the first embodiment of the present invention, as shown in FIG. 1, 1 is an oscillation circuit, 2 is a computer control device, 3 is an amplifier circuit, and 4 is a speaker. The oscillation circuit 1 is a variable frequency oscillation circuit that randomly generates a signal, and the oscillation frequency is controlled within a range of 0 KHz to 40 KHz by computer control by a control signal applied to a terminal (not shown). The amplifier circuit 3 is a power amplifier circuit, and amplifies the output signal of the oscillation circuit 1 and transfers it to the speaker 4. The speaker 4 converts an electric signal into mechanical vibration such as air density.
In the harmful animal repelling device of the present invention, the computer control (microcomputer control) device 2 is used to arbitrarily change between 0 and 40 KHz according to time. For example, in response to a control signal, Oscillation circuit 1 {refer to FIG. 3 (a)} in which the oscillation frequencies of 5KHz, 10KHz, 15KHz, 20KHz, 25KHz, and 30KHz are sequentially turned, or the oscillation is stopped between the respective frequencies. Oscillating circuit 1 {see FIG. 3 (b)} that oscillates randomly, or oscillates randomly between each frequency, and a random signal generator that oscillates the oscillation frequency randomly, and its output signal A control circuit for generating a control signal corresponding to the above, an amplifier circuit 3 for amplifying the control circuit, and a speed for converting the output signal into a mechanical vibration such as sound. The control signal output from the control circuit is supplied to the oscillation circuit 1 to control the oscillation frequency and oscillate repeatedly in sequence or temporarily stop oscillation between each oscillation frequency. Repeat sequentially {see Fig. 3 (c)}, oscillate each oscillation frequency randomly as well as in order, temporarily stop oscillation between the randomly oscillating frequencies and repeat randomly It is a harmful animal repelling device characterized in that a threat signal including it is created {see FIG. 3 (d)}, and this threat signal is converted into mechanical vibration by a speaker 4 and transmitted.

Next, based on FIG. 2, the structure of the harmful animal repelling apparatus of 2nd Example is demonstrated.
If the frequency is 17KHz or less, it will be harmful or surprised because it can be heard by the human ear, so if a human enters, only if the frequency of the repelling device is stopped or a harmful animal enters, The sensor circuit 5 such as the time operation of the timer is added to the computer control device 2 of the first embodiment to adjust the sensitivity, thereby changing the repelling operation depending on the location, thereby aiming to expand the installation location.

To summarize what has been described above,
(1) Randomly generate the oscillation frequency.
(2) Randomly changing the intensity of the oscillation frequency.
(3) To give the oscillation frequency irregular irregularity.
(4) To combine a plurality of oscillating frequencies, such as high / low, strong / weak, and various types of intermittents.
(5) To avoid the impact on humans and livestock, specify the frequency generation time zone.
(6) The object is limited as much as possible with a sensor, timer, etc. and has a function of generating a frequency, so that it does not harm humans and livestock.

Next, the operation of the harmful animal repelling device configured as described above will be described.
First, the frequency of the oscillation circuit 1 is controlled to oscillate sequentially or randomly, such as 5 KHz, 10 KHz, 15 KHz, 20 KHz, 25 KHz, 30 KHz, 35 KHz, and 40 KHz, which are disgusting by mice, or the frequency oscillation duration is random. Control to change.
In this way, when a threatening signal is applied to the rabbit, the rabbit runs around to get out of the sound field, crouches in the corners, cramps the limbs, tail, ears, etc., and goes wild and rampages.
Thus, the present invention can repel harmful animals.

  It can be used to repel not only harmful animals but also birds such as pigeons and sparrows.

1 is a schematic block diagram showing a harmful animal repelling apparatus in a first embodiment of the present invention. FIG. 5 is a schematic block diagram showing a harmful animal repelling device in a second embodiment of the present invention. It is a schematic explanatory drawing which shows the oscillation state of the oscillation frequency in this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Oscillation circuit 2 ... Computer control device 3 ... Amplification circuit 4 ... Speaker 5 ... Sensor circuit

Claims (2)

A signal generator for arbitrarily changing the oscillation frequency between 0 KHz and 40 KHz with time in response to a control signal, a control circuit for generating a control signal in response to the signal, an amplifier circuit for amplifying the control circuit, A harmful animal repelling device comprising a speaker for converting an output signal into vibration. 2. The detection sensor according to claim 1, further comprising a detection sensor that activates the harmful animal repelling device for a certain period of time only when a human has passed does not activate the harmful animal repelling device or only when the harmful animal has passed. Harmful animal repelling device.

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