JP6071992B2 - Biological exclusion device - Google Patents

Description

  The present invention relates to a biological exclusion device that excludes animals to be excluded (hereinafter referred to as “exclusion target organisms”), and more particularly to a biological exclusion device that uses sound.

  2. Description of the Related Art Conventionally, biological exclusion devices for the purpose of eliminating harmful animals (for example, organisms to be excluded such as cockroaches, rats, birds (crows, starlings, pigeons)) have been disclosed. As one of the conventional biological exclusion devices, a device that includes an electroacoustic transducer (speaker) that periodically changes signals in different ultrasonic bands and radiates them in the air is disclosed. . In the following description, “exclusion” includes “disinfection”, “aversion”, and “avoidance”.

  As such, “a plurality of ultrasonic transmitters each having a different frequency band and a drive circuit for driving each ultrasonic transmitter are provided, and one of a plurality of predetermined drive modes is selected. And selecting a drive mode, and controlling the drive circuit based on the drive mode, and each mode includes at least one ultrasonic transmitter from the plurality of ultrasonic transmitters. A harmful animal extermination device using ultrasonic waves characterized in that a random band is provided that randomly selects and randomly controls the drive frequency and drive time of the drive circuit has been proposed (for example, Patent Document 1).

  In the harmful animal extermination device described in Patent Document 1, an ultrasonic signal is radiated to a storage device such as an IC mounted on a product equipped with a radiator according to a preprogrammed time and period. Therefore, signal processing is performed to prevent the object that presents sound radiation from getting used to the sound.

  In addition, as an example of harmful animals, “birds” can be cited as ones that are frequently excluded from various industries. In recent years, crows, starlings, and pigeons have been targeted as “birds”. Of these, it is well known that crows have the highest intelligence among "birds", and specialized research results show that crows are also good at communication between birds.

  In the conventional biological exclusion device, the crow's voice is emitted from the speaker at a high sound pressure level and directly applied to the crow by using the crow's voice, thereby causing the crow to make an avoidance action. There was also a thing (for example, refer to patent documents 2).

Japanese Patent Laid-Open No. 7-107893 Japanese Patent No. 5135507

Since there are many animals that can be heard up to the frequency of the ultrasonic band, in the technique described in Patent Document 1, for animals that have the ability to hear the ultrasonic band among the organisms to be excluded, The effect of a certain period can be exhibited.
However, there are problems such as not using the ultrasonic band and not having a great influence on the organisms to be excluded such as crows having relatively high communication. In other words, the crow has an audible frequency band that is substantially equivalent to that of a human being, and has a low hearing ability with respect to the frequency of the ultrasonic band, and as a result, does not hear the ultrasonic wave (not heard). For this reason, there is a case where the elimination effect cannot be obtained at all by simply applying the frequency in the ultrasonic band to the crow.

In addition, even if the oscillation frequency of the ultrasonic signal is changed, it does not change that it changes at a constant rhythm, so that a certain amount of time gives the organisms to be excluded a “habituation” to the sound itself. In other words, there was a problem that the effect disappeared at an early stage.
For this reason, the technique described in Patent Document 1 cannot reliably exclude the organism to be excluded.

  In the technique described in Patent Document 2, it is important to make an elimination target organism hear an acoustic signal necessary for exclusion or the like. Therefore, it is necessary to radiate an acoustic signal at a sound pressure level equal to or higher than the sound of the organism to be excluded. For this reason, sound having a sound pressure level equal to or higher than the sound of the organism to be excluded is radiated at a high volume from a speaker for emitting sound regardless of the night. Therefore, since the sound signal necessary for the exclusion of the organisms to be excluded is emitted around the environment where the organism exclusion device is installed, it is equally given to the surrounding residents, and the "noise" caused by the installation environment Was causing the problem.

  The present invention has been made in the background of the above-described problems, and it is an object of the present invention to provide a biological exclusion device that can effectively exclude an organism to be excluded by giving a sound superimposed on ultrasonic waves to the organism to be excluded. It is said.

The biological exclusion apparatus according to the present invention is a biological exclusion apparatus that excludes an organism to be excluded, and creates a pseudo sound using a time change that appears in a frequency of an original sound that occurs when the organism to be excluded is abnormal, A pseudo sound is superimposed on an ultrasonic signal and is emitted as a sound pressure level equal to or higher than the sound pressure level of the sound emitted by the organism to be excluded. The voice has a tendency to change from the maximum sound pressure level to −30 dB in the order of the frequency band of 400 Hz to 800 Hz, the frequency band of 800 Hz to 2 kHz, and the frequency band of 2 kHz to 4 kHz ± 1 kHz. In the frequency band of 400 Hz to 800 Hz, the frequency is changed around 500 Hz + 200 Hz, and in the frequency band of 800 Hz to 2 kHz, 1.2 kHz + 50 Varying around Hz, changing frequency around 2 kHz to 4 kHz ± 1 kHz, changing around 4 kHz + 1000 Hz, 400 Hz to 800 Hz frequency band, 800 Hz to 2 kHz frequency band, 2 kHz to 4 kHz ± 1 kHz in order of maximum sound pressure It is created by changing the level to -30 dB .
The biological exclusion device according to the present invention is a biological exclusion device that excludes an organism to be excluded, and creates a pseudo sound using a time change that appears in a frequency of an original sound that occurs when the organism to be excluded is abnormal. The pseudo sound is superimposed on an ultrasonic signal and is emitted as a sound pressure level equal to or greater than or equal to the sound pressure level of the sound emitted by the organism to be excluded, the sound signal based on the original sound, A sound signal based on pseudo sound, a sound signal in an ultrasonic band subjected to amplitude modulation or frequency modulation, and a sound signal of a transient sound are randomly selected and output.

  The biological exclusion apparatus according to the present invention creates a pseudo voice using a time change that appears in a frequency of an original voice that occurs when the organism to be excluded is abnormal, superimposes the pseudo voice on an ultrasonic signal, and performs the exclusion. Since it radiates as a sound pressure level equal to or higher than the sound pressure level of the sound produced by the target organism, it is possible to take pest countermeasures by means of directly appealing to the instinct of the organism to be excluded.

It is a basic block conceptual diagram which shows the basic composition of the biological exclusion apparatus which concerns on Embodiment 1 of this invention. It is explanatory drawing for demonstrating an example of the time waveform and frequency change of "normal sound" of the crow as an exclusion object organism. It is explanatory drawing for demonstrating an example of the time waveform and frequency change of "the audio | voice at the time of abnormality" of the crow as an organism for exclusion. It is explanatory drawing for demonstrating an example of the time waveform and frequency change of the "pseudo sound" created based on the "sound at the time of abnormality" of the crow as a removal object organism. An example of the time-axis characteristic of the reproduction | regeneration audio | voice for eliminating a crow is shown. It is explanatory drawing for demonstrating an example of the timing pattern of the light emission which the organism exclusion apparatus which concerns on Embodiment 1 of this invention provides. It is explanatory drawing for demonstrating an example of the timing of the audio | voice given from the organism exclusion apparatus which concerns on Embodiment 1 of this invention, and light emission. It is explanatory drawing for demonstrating a series of processing state examples of a signal processing. It is explanatory drawing for demonstrating the example of the waveform after the demodulation which a crow will hear. It is a schematic block diagram for demonstrating an example of the reproduction | regeneration means of the biological exclusion apparatus which concerns on Embodiment 1 of this invention. Schematic configuration showing a combination example of an aerial ultrasonic oscillator in which a collection of aerial ultrasonic oscillators of the biological exclusion apparatus according to Embodiment 1 of the present invention is used as one radiating area and four lumps of the radiating area are aggregated FIG. It is explanatory drawing for demonstrating the directional characteristic when it reproduces | regenerates with the reproduction | regeneration means of the biological exclusion apparatus which concerns on Embodiment 1 of this invention. It is a graph which shows the output-sound pressure frequency characteristic of each reproduction | regeneration means comprised so that it might drive at 15 kHz. It is explanatory drawing for demonstrating the example of installation of the biological exclusion apparatus which concerns on Embodiment 2. FIG. It is explanatory drawing for demonstrating the example of installation of the biological exclusion apparatus which concerns on Embodiment 2. FIG. It is explanatory drawing for demonstrating the example of installation of the biological exclusion apparatus which concerns on Embodiment 2. FIG. It is explanatory drawing for demonstrating the example of installation of the biological exclusion apparatus which concerns on Embodiment 2. FIG.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, in the following drawings including FIG. 1, the relationship of the size of each component may be different from the actual one. Further, in the following drawings including FIG. 1, the same reference numerals denote the same or equivalent parts, and this is common throughout the entire specification. Furthermore, the forms of the constituent elements shown in the entire specification are merely examples, and are not limited to these descriptions.

Embodiment 1 FIG.
FIG. 1 is a basic block conceptual diagram showing a basic configuration of a biological exclusion apparatus 1A according to Embodiment 1 of the present invention. Hereinafter, the biological exclusion apparatus 1A will be described with reference to FIG. The organism exclusion apparatus 1A is configured to give a sound superimposed on ultrasonic waves to an organism to be excluded. In the following description, “grant” includes “give”, “present”, and “exposure”. Further, FIG. 1 shows an example in which the organism exclusion apparatus 1A includes “light emitting means” as a means other than sound, but the “light emission means” is not an essential configuration of the organism exclusion apparatus 1A.

The organism exclusion apparatus 1A includes at least an audio transmission unit 80 and a light emitting unit 70.
The sound transmission means 80 has a predetermined frequency width from sound radiation means (for example, a resonance type sound generator (reproduction means 40)) capable of oscillating a single ultrasonic frequency (for example, 40 kHz). In addition, an amplitude-modulated or frequency-modulated ultrasonic band signal (for example, 40 kHz ± 2 kHz) is radiated.
At this time, the biological exclusion apparatus 1A superimposes a sound in an ultrasonic band by a modulated wave having a frequency width on a single ultrasonic frequency.
The light emitting means 70 is configured to give “light” to the organisms to be excluded as other providing means other than sound.

<Audio transmission means 80>
The audio transmission unit 80 includes an ultrasonic signal generation unit 10, an exclusion signal unit 12, a processing circuit unit 25, an addition unit 30, a control unit 50, an amplifier 35, and a reproduction unit 40.
The amplifier 35 is not an essential configuration.
In addition, without adding the ultrasonic signal creation unit 10 to the addition unit 30, the signal from the exclusion signal unit 12 can be transmitted to the control unit 50 as it is, and a configuration that can perform software signal processing is also provided. As a result, it is possible to output only the sound necessary for exclusion without superimposing it on the ultrasonic signal, and it is possible to reproduce / radiate the sound necessary for exclusion using a conventional speaker means without using special reproduction means. It becomes possible to do.

  The ultrasonic signal creation unit 10 functions as a transmission circuit unit that creates a signal in an ultrasonic band of 20 kHz or higher. The signal frequency created by the ultrasonic signal creation unit 10 is used as a carrier signal.

The exclusion signal unit 12 creates a removal / exclusion signal 20 in which the original audio signal 21, the pseudo (audio) signal 22, the ultrasonic signal 23, and the transient signal 24 are selected at random.
The original audio signal 21 is an audio signal based on the raw original audio of the organism to be excluded that is input and stored.
The pseudo (speech) signal 22 is a pseudo sound signal created by using the original sound of the characteristic organism to be excluded and the characteristic acoustic characteristics of the original sound.
The ultrasonic signal 23 is an audio signal in an ultrasonic band subjected to amplitude modulation or frequency modulation with a predetermined frequency width.
The transient signal 24 is an audio signal of a transient sound, that is, an impact sound (explosive sound) generated by inputting an impulse signal.

  The processing circuit unit 25 is a unit that freely combines the removal / exclusion signals 20 created and stored in the exclusion signal unit 12 and outputs them randomly.

  The adding unit 30 functions as a part that couples the exclusion signal unit 12 and the ultrasonic signal generating unit 10, and an ultrasonic wave having a predetermined frequency width by amplitude-modulating or frequency-modulating a signal output from each of them. A band signal (for example, 40 kHz ± 2 kHz) is assumed.

The control unit 50 includes at least a CPU unit 51 and a grant function control unit 52.
The CPU unit 51 has a function of controlling the operations of the reproducing unit 40 and the light emitting unit 70 based on the signal created by the adding unit 30.
The assignment function control unit 52 has a function of providing the CPU unit 51 with information for controlling the operation of the light emitting unit 70. The assignment function control means 52 stores information on the timing (time and time) of light emission and the light emission frequency in advance. These pieces of information are preferably rewritable.

The amplifier 35 amplifies the sound pressure level of the signal amplitude-modulated by the adding unit 30.
The reproduction means 40 reproduces the signal amplified by the amplifier 35 as sound or the like and transmits it to a remote place. The reproducing means 40 can oscillate a single ultrasonic frequency (for example, 40 kHz). Note that it is desirable that the reproducing means 40 emit a high sound pressure level in order to perform the same function as a known parametric speaker.

<Light emitting means 70>
The light emitting means 70 includes a light emitting source.
The luminescence source may be selected according to the organism to be excluded. As the light source, for example, a lamp, an LED that emits ultraviolet light, a blue LED, an LED that emits white or red light, or the like can be used.

[Exclusion of organisms to be excluded]
<Exclusion by voice>
Here, a case where a crow as an organism to be excluded is excluded using sound will be described.
In the case of animals that use voice communication or animals that perform collective behavior, it is known that voice communication is used to guide friends.
A crow has a developed brain and a vocal organ, and is known to perform high-level voice communication between friends using a plurality of calls.

  Voices that generate crows can be broadly classified into those that occur during normal times and those that occur during normal times. Warnings that occur during warnings, warning voices that occur during wars, battle voices or threats that occur during fights with raptors, and voices that occur during fear Includes audio. In the following description, in order to express the above contents, it is referred to as “abnormal voice”. Further, times other than “abnormal voice” are referred to as “normal voice”.

  FIG. 2 is an explanatory diagram for explaining an example of a time waveform and a frequency change of a “normal voice” of a crow as an organism to be excluded. In FIG. 2, the vertical axis indicates the sound pressure level (dB), and the horizontal axis indicates the frequency (kHz). In FIG. 2, the maximum value of the sound pressure level is shown in the vicinity of 0 dB.

As shown in FIG. 2, the voice time of the crow changes generally within 0.2 seconds to within ± 0.2 seconds within 0.2 seconds, and as an example, the occurrence time is 0 on average. A description will be given of a change from 3 seconds to 0.5 seconds ± 0.2 seconds.
The frequency characteristics of “normal voice” in which crows are generated have a large band change in the range of 800 Hz to 4 kHz ± 1 kHz, and the occurrence time is 0.3 to 0.5 seconds ± 0.2 seconds on average. I understood. At the time of occurrence of “normal voice”, the level of the sound pressure level in the frequency band of the normal voice changes substantially simultaneously, and no weighting of the time change with respect to the frequency band is seen ((1a shown in FIG. 2). ), (1b), (1c)).

  FIG. 3 is an explanatory diagram for explaining an example of a time waveform and a frequency change of “abnormal voice” of a crow as an organism to be excluded. In FIG. 3, the vertical axis indicates the sound pressure level (dB), and the horizontal axis indicates the frequency (kHz). In FIG. 3, the maximum value of the sound pressure level is shown in the vicinity of 0 dB. Also, the sound time that is emitted in the event of an abnormality changes in a range of approximately 0.2 seconds to within ± 0.2 seconds within ± 0.2 seconds, as in normal times. A description will be given of a change from 3 seconds to 0.5 seconds ± 0.2 seconds.

  As shown in FIG. 3, the frequency characteristic of “abnormal voice” in which crows are generated has a large band change in the range of 400 Hz ± 100 hertz to 4 kHz ± 1 kHz, and the generation time averages 0.3 seconds to 0.5 seconds. It was found that it was ± 0.2 seconds. At the time of occurrence of “abnormal voice”, it can be understood that time fluctuation appears in the frequency and the timing is as follows (see (2a), (2b), and (2c) shown in FIG. 3).

The band (2a) is a low frequency band of 400 Hz to 800 Hz.
The band (2b) is a medium frequency band of 800 Hz to 2 kHz.
The band (2c) is a high frequency band of 2 kHz to 4 kHz ± 1 kHz.
From these, it was found that the sound pressure level fluctuates in the order of the band (2a) to the band (2c), and has a characteristic tendency that the maximum sound pressure level in FIG. 3 changes in order from 0 dB to around −30 dB. In other words, it can be seen that in the “abnormal voice”, the time change is weighted.

  Therefore, in the biological exclusion apparatus 1A, a pseudo voice is created using the characteristic amount of the voice change at the time of abnormality by using the obvious change between the “voice at the time of abnormality” and the “normal voice”. . An example of the frequency characteristics of the created pseudo voice is shown in FIG.

  FIG. 4 is an explanatory diagram for explaining an example of a temporal waveform and a frequency change of a “pseudo-voice” created based on “abnormal voice” of a crow as an organism to be excluded. In FIG. 4, the vertical axis indicates the sound pressure level (dB), and the horizontal axis indicates the frequency (kHz). In FIG. 4, the maximum value of the sound pressure level is shown in the vicinity of 0 dB.

  As shown in FIG. 4, the frequency characteristics of “pseudo-speech” have a large band change at 500 Hz to 4 kHz ± 1 kHz, and pseudo-speech is also changed within 0.2 seconds to 1.0 seconds. In the description, an example in which the generation time is 0.3 seconds to 0.5 seconds ± 0.2 seconds on average will be described. Specifically, “pseudo speech” is created by performing characteristic fluctuations particularly in the following frequency bands (see (3a), (3b), and (3c) shown in FIG. 4). In addition, the maximum sound pressure level of “pseudo-voice” is within 30 dB at the maximum, and the sound generation time of each frequency band of “pseudo-voice” is equally distributed.

The band (3a) is a low frequency band of 400 Hz to 800 Hz, and changes around 500 Hz + 200 Hz (−100 Hz).
The band (3b) is a medium frequency band of 800 Hz to 2 kHz, and changes around 1.2 kHz + 500 Hz (−100 Hz).
The band (3c) is a high frequency band of 2 kHz to 4 kHz ± 1 kHz, and changes around 4 kHz + 1000 Hz (−500 Hz).
In this order, the maximum sound pressure level is changed within a maximum of 30 dB, and the sound generation time is equally distributed to create “pseudo-voice”.

  That is, in the biological exclusion apparatus 1A, the “pseudo-voice” is created with the frequency band characteristics equivalent to the “abnormal voice” and the temporal band change equivalent to the “abnormal voice”. By creating the “pseudo-voice” in this way, it can be expected that the “pseudo-voice” acts on the crow like the “sound at the time of abnormality”.

  As described above, the biological exclusion apparatus 1A can output the extermination / exclusion signal 20 including four audio signals by the processing circuit unit 25. Specifically, in the biological exclusion apparatus 1A, four audio signals can be freely combined and randomly output.

  FIG. 5 shows an example of the time axis characteristic of the reproduced sound for eliminating the crow. Based on FIG. 5, the example of the crow removal by 1 A of biological exclusion apparatuses is demonstrated. In FIG. 5, the vertical axis represents frequency and the horizontal axis represents time.

“A” shown in FIG. 5 indicates frequency characteristics when the original audio signal 21 is emitted.
“B” shown in FIG. 5 shows the frequency characteristics when the transient signal 24 is emitted. “C” shown in FIG. 5 shows the frequency characteristics when the pseudo signal 22 is emitted.
“D” shown in FIG. 5 indicates a frequency characteristic when the transient signal 24 is emitted.
“E” shown in FIG. 5 indicates a frequency characteristic when the ultrasonic signal 23 is emitted.
“F” shown in FIG. 5 indicates a frequency characteristic when the original audio signal 21 is emitted.
“G” shown in FIG. 5 indicates a frequency characteristic when the ultrasonic signal 23 is emitted.

The original audio signals 21 indicated by “A” and “F” are raw audio signals of the organisms to be excluded that are input and stored, and contribute to the elimination of crows because they are “abnormal audio”.
The transient signal 24 shown in “B” and “D” is an “sound = acoustic characteristic” that performs an impulse-like time change, and is an audio signal with an occurrence time of 0.05 seconds or less, Contributes to eliminating crows.

The pseudo signal 22 shown in “C” is a voice created with a frequency band characteristic equivalent to “abnormal voice” and a temporal band change equivalent to “abnormal voice”. Similarly, it contributes to the elimination of crows.
The ultrasonic signals 23 indicated by “E” and “G” generate a single ultrasonic band sound of 25 kHz or more, and are separated by superimposing the ultrasonic band sound on a 40 kHz ultrasonic carrier wave. This is an audio signal that is exposed to a crow staying away from the place, and contributes to the elimination of the crow.

Simply playing a crow's voice pattern would make it audible to humans.
Moreover, the sound pressure level of the crow's voice (scream) in nature is, for example, 70 dB to 80 dB even when the distance between the crow and the measuring instrument is 10 m, and has a very high sound pressure level. Yes.

  The output level (voice level) of the voice pattern of the exclusion signal unit 12 also needs to be radiated at a sound pressure level equal to or higher than that of the voice that actually generates crows in order to perform reliable avoidance action.

Therefore, the biological exclusion apparatus 1A superimposes a sound in an ultrasonic band by a modulated wave having a predetermined frequency width on a single ultrasonic frequency.
The sound pressure level that can be radiated by the reproducing means 40 is at least 124 dB at the time of measurement in proximity.

A single ultrasonic signal radiated from the reproducing means 40 that can radiate as a strong sound pressure level and a modulated ultrasonic signal are influenced by fluctuations caused by friction with air when propagating in space, and are nonlinear signals. Propagate in space as a waveform.
Therefore, unlike an acoustic signal that linearly propagates in space, a linear sound pressure level attenuation characteristic cannot be obtained, the sound pressure level is hardly attenuated, and is not affected by air pressure. The ultrasonic signal can be propagated linearly on the top.

The waveform of the ultrasonic signal that travels nonlinearly in the space can stop the propagation in the air when it collides with something. For this reason, a sum difference of the modulated ultrasonic waveforms is generated at the location of the collision, and sound in a frequency band having a width of (40 kHz ± 3 kHz) −40 kHz = 3 kHz is generated (demodulated) at the collision point.
As a result, no sound can be heard while propagating in space.

  The reason why the modulation band is set to 3 kHz is that the crow's voice band extends to 3 kHz, and the crow's voice needs to be reliably reproduced, so that the 3 kHz modulation band is aimed.

  When the ultrasonic signal 23 is emitted, the nonlinear propagation phenomenon is fortunate, and the sound pressure level of the carrier wave and the transmitted ultrasonic wave is 120 dB or more. And, in the living body, ultrasound is heard as a sense of pressure as a bone conduction factor (sensation of experience), and a sense that cannot be obtained in nature by crows is directly exposed to the body, causing a phenomenon close to a panic phenomenon. It will be.

<Exclusion by light emission>
A means for more effectively executing the exclusion target organism will be described. As described above, in the biological exclusion apparatus 1A, the elimination / exclusion signal 20 selected at random can effectively eliminate the elimination target organism, but the elimination of the elimination target organism can be performed more effectively. Means for executing will be described. Here, a case where a crow as an organism to be excluded is excluded using non-stationary (random) light emission will be described.

Unlike humans, crows are known to be able to recognize wavelengths in the ultraviolet band.
Therefore, the biological exclusion device 1A uses the visual characteristics of the crow to give the crow light emission irregularly or discontinuously regardless of day or night.

Since crows can see ultraviolet rays, LEDs that emit ultraviolet rays and blue LEDs are effective as the light source used for the light emitting means 70. If these are used, since a wavelength different from that of sunlight can be emitted, it can be effectively applied to the crow even in the daytime. For example, the light imparted to the crow may be light including a wavelength of 300 nm to 500 nm that is considered to be highly sensitive to the crow.
For birds and animals other than crows, white or red LEDs may be used as the light source of the light emitting means 70. Moreover, it becomes possible to cope with a large number of harmful birds and beasts by using an LED whose emission frequency can be varied.
By using light, it effectively acts on an organism to be excluded that is inferior to voice communication, such as pigeons and squirrels.

  FIG. 6 is an explanatory diagram for explaining an example of a timing pattern of light emission provided by the organism exclusion apparatus 1A. Based on FIG. 6, an example of a timing pattern for providing light emission will be described.

In the biological exclusion apparatus 1A, the light emitting means 70 emits light unsteadily. In other words, the organism exclusion device 1A is based on changing the light emission time and the stop time randomly in consideration of “threat” to the organisms to be excluded such as crows and other harmful birds and beasts.
Light emission includes single light emission and continuous light emission, light emission time includes predetermined light emission times B1, D1, and F1, and application time includes predetermined time intervals A1, C1, and E1.

First, the biological exclusion apparatus 1A does not emit light from the light emitting means 70 during the predetermined time interval A1.
Then, when the predetermined time interval A1 has passed, the organism exclusion apparatus 1A uses the light emitting means 70 to emit light once in a predetermined light emission time B1.
Thereafter, the organism exclusion apparatus 1A does not emit any light from the light emitting means 70 during the predetermined time interval C1.
When the predetermined time interval C1 has passed, the organism exclusion apparatus 1A uses the light emitting means 70 to continuously emit light at a predetermined light emission time D1 and a predetermined light emission time F1 with a predetermined time interval E1.

In this way, by emitting light randomly, light can be emitted in an almost infinite state, and compared to steady light emission, it is possible to prevent “habituation” and the like, and it is possible to eliminate the target organisms with certainty. It becomes.
Note that the predetermined light emission times B1, D1, and F1 and the predetermined time intervals A1, C1, and E1 shown in FIG. 6 are arbitrary and may be appropriately determined. These may be repeated, but it is preferable to avoid simple repetition because it leads to generation of “habituation” and the like.

<Sound and light emission timing pattern>
FIG. 7 is an explanatory diagram for explaining an example of sound and light emission timing given from the organism exclusion device 1A. Based on FIG. 7, the audio | voice and light emission which are given toward the crow from 1 A of biological exclusion apparatuses are demonstrated.

  As shown in FIG. 7, in the organism exclusion apparatus 1A, after the sound is given by the reproducing means 40, the light emitting means 70 is allowed to emit light continuously to give light.

  In providing sound by the reproduction means 40, an ultrasonic signal having a single frequency with a strong sound pressure level and an ultrasonic signal with a modulation of about ± 3 kHz are added, and the added signal is, for example, in the audible range. Audio with linear directivity is conveyed by superimposing audio for the purpose of excluding target organisms such as crows.

A pulsed signal sound is generated irregularly in the sound of the continuous signal and is exposed to animals such as crows. For this reason, it is provided as an unpleasant impulse sound for animals that perform advanced communication.
In addition, amplitude modulation can be done with a simple circuit configuration, so that the circuit can be molded at low cost, and when installed outdoors, etc., it has a powerful countermeasure structure, circuit configuration, and circuit for external noise required for digital circuits. There is no need for complicated circuit settings. Therefore, the biological exclusion apparatus 1A has a feature that adopts a configuration that does not require digital processing and has a large cost merit for the circuit.

  As described above, the reproducing means 40 needs to emit a high sound pressure level. This is because when a crow is excluded in a residential area or the like, a crow's voice is given to a resident in the residential area in a reproduction method using a general speaker. In that case, it is just “noise” for the person who heard the crow's voice.

Therefore, in order not to give an unpleasant feeling to human beings, the biological exclusion apparatus 1A is configured to give sound only to crows by ultrasonic conveyance.
However, a known general parametric speaker provides an “acoustic signal” only to a target location, and the parametric method has a characteristic that directivity is very narrow. Further, since the element structure for the parametric speaker is not dedicated, there is a disadvantage that the amplitude of a diaphragm or the like for emitting sound at a high sound pressure level cannot be created. For this reason, conventionally, the sound is provided only at a target location at a sound pressure level that can be heard by humans.

However, when targeting a crow that is an example of an organism to be excluded, the number of individuals gathering in the crow's “roost” or “food ground” is very large. Therefore, it is necessary to radiate sound in a wide range (wide range) and at a large sound pressure level.
In this case, it is advantageous to radiate sound with a general speaker for middle and low range where the directivity is expanded to some extent, but if a sound pressure level equal to or higher than the sound pressure level of crow pronunciation is radiated in a wide range, Naturally, since it is also given to humans, as described above, it will give humans unpleasantness as “noise”.

From the above, to the target location, that is, to the crows that are in a distant place, the sound necessary for exclusion is transmitted with high sound pressure using ultrasound as a carrier, and as wide as possible (width) It is important to be able to provide sound with directivity.
Therefore, in the biological exclusion apparatus 1A, by arranging a plurality of units (reproducing means 40) that can perform voice conveyance close to each other, it is possible to configure a voice conveyance apparatus that has linear directivity and wide directivity.
In this way, the target voice can be sent to a distant place over a wide range, so the sound (voice) ) Is not given, and noise problems do not occur.
Further, if a plurality of reproducing means 40 are provided, it is possible to ensure a high sound pressure level.

  In other words, the biological exclusion device 1A uses an ultrasonic signal with a strong sound pressure level as a carrier signal, and superimposes a voice (live voice or artificial voice) signal necessary for eliminating birds and beasts on the ultrasonic signal. . And the radiation range of sound radiation is narrowed (narrow directivity) by amplitude-modulating or frequency-modulating the superimposed audio signal. In this way, sound can be emitted while maintaining a strong sound pressure level in an arbitrary direction. As a result, the living organism exclusion apparatus 1A can carry a sound signal necessary for exterminating the organism to be excluded over a long distance while suppressing the deterioration of the sound pressure level accompanying the propagation of the ultrasonic signal over the distance.

When the transport signal reaches the organism to be excluded at the transport destination, the modulation signal is demodulated, and an audio signal such as extermination can be directly applied to the organism to be excluded. Therefore, since an acoustic signal (sound) necessary for exclusion is not given other than the organism to be excluded, general facilities around the building where the organism to be excluded will not be affected by noise or the like. .
In addition, since the necessary frequency of sound and the like is conveyed by ultrasonic waves, it is not necessary to use, for example, a high-performance speaker device for reproducing frequencies other than ultrasonic waves, and the device configuration is performed at low cost. Can do.

  Furthermore, instead of providing sound emission directly to the organism to be excluded, it is given to the organism to be excluded by “demodulating” the sound superimposed on the ultrasonic wave. Therefore, the frequency band such as the audio signal of the organism to be excluded can also cope with several Hz to several hundred kHz or more.

In addition, in the organism exclusion device 1A, if the luminescence is given to the organism to be excluded in addition to the sound, the organism to be excluded can be more effectively eliminated. For example, as shown in FIG. 7, it is preferable to emit light continuously after giving by voice.
Therefore, if the light emitting means 70 is used in the organism exclusion device 1A, it is possible to achieve an exclusion effect by light emission in addition to an exclusion effect by sound.

Specifically, by driving with a combination of sound and light emission, a plurality of exclusion means that can give various influences can be given to the organism to be excluded. For this reason, it is possible to prevent “acquisition” or the like by a single granting means, and it is possible to reliably exclude the organisms to be excluded.
In addition, according to the organism exclusion apparatus 1A, in order to use sound propagation by ultrasonic conveyance, it can be directly given only to the organism to be excluded. Therefore, an acoustic signal (sound) necessary for exclusion is not given other than the organisms to be excluded, and noise or the like is not exerted on general facilities around the building where the organisms to be excluded fly.

  FIG. 8 is an explanatory diagram for explaining a series of processing state examples of signal processing. An example of a series of processing states of signal processing will be described based on FIG.

As described above, as a reproduction method using ultrasonic waves as a carrier signal, there is a parametric speaker means.
In the biological exclusion apparatus 1A, reproduction is performed together with a crow voice by utilizing the problem of amplitude modulation.
The problem with amplitude modulation is pulse noise due to external noise.

  In amplitude modulation, a beat phenomenon occurs at the time of demodulation, and there are cases where two signals of ultrasonic and voice are generated “in a beat”. When two waves of sound and ultrasonic waves generated as “beat” are reproduced from the reproducing means 40 and collide with a transmission destination crow, the sound portion is exposed to the crow. In addition to voice, ultrasonic waves with a high sound pressure level, which will be described later, are also exposed, so for crows, in addition to audible voices experienced in nature, ultrasound that has never been seen in nature. You will be exposed to high sound pressure levels.

It is well known that ultrasound with a high sound pressure level is also used in medicine, and feels as a physical vibration. In other words, ultrasonic waves with high sound pressure levels have an unpleasant effect on crows by receiving ultrasonic pressure fluctuations that crows have never experienced, in addition to voices that urge crows to eliminate. Become.
In addition, pulse-like noise due to external noise is directly exposed to the crow as an impact signal having a high sound pressure level.

  FIG. 9 is an explanatory diagram for explaining an example of a demodulated waveform that a crow hears. Based on FIG. 9, an example of a demodulated waveform that a crow will hear will be described.

A pulsed signal sound is generated irregularly in the sound of the continuous signal and is exposed to animals such as crows. For this reason, it is provided as an unpleasant impulse sound for animals that perform advanced communication.
In addition, amplitude modulation can be configured with a simple circuit configuration, so that the circuit can be formed at low cost, and when installed outdoors, a powerful countermeasure structure, circuit configuration, and circuit for external noise required for digital circuits There is no need for complicated circuit settings, etc. Therefore, the biological exclusion apparatus 1A has a feature that adopts a configuration that does not require digital processing and has a large cost merit for the circuit.

  As described above, the reproducing means 40 needs to emit a high sound pressure level. This is because when a crow is excluded in a residential area or the like, the sound of the crow is exposed even to the residents in the residential area by a general reproduction method using a speaker. In that case, it is just “noise” for the person who heard the crow's voice.

Therefore, in order not to give an unpleasant feeling to human beings, the biological exclusion apparatus 1A exposes sound to only crows by ultrasonic conveyance.
However, a known general parametric speaker provides an “acoustic signal” only to a target location, and the parametric method has a characteristic that directivity is very narrow. Further, since the element structure for the parametric speaker is not dedicated, there is a disadvantage that the amplitude of a diaphragm or the like for emitting sound at a high sound pressure level cannot be created. For this reason, conventionally, the sound is provided only at a target location at a sound pressure level that can be heard by humans.

However, when targeting a crow that is an example of an organism to be excluded, the number of individuals gathering in the crow's “roost” or “food ground” is very large. Therefore, it is necessary to radiate sound in a wide range (wide range) and at a large sound pressure level.
In this case, it is advantageous to radiate sound with a general speaker for middle and low range where the directivity is expanded to some extent, but if a sound pressure level equal to or higher than the sound pressure level of crow pronunciation is radiated in a wide range, Naturally, since it is also exposed to human beings, as described above, it will be annoying to humans as “noise”.

From the above, to the target location, that is, to the crows that are in a group at a distance, the sound necessary for exclusion is sent as high a sound pressure as an ultrasonic wave carrier, and as wide as possible ( It is important to be able to provide speech with a wide range of directivity.
Therefore, according to the biological exclusion device 1A, since the target voice can be transmitted over a wide range to a distant place, it can be used for residents (human beings) such as surrounding residential areas other than crows. Sound (speech) is not exposed and noise problems do not occur.

  In the above description, the case where the elimination / exclusion signal 20 is given to the exclusion target organism to eliminate the elimination target organism has been described as an example. By providing the / exclusion signal 20, it is possible to exclude such organisms. For example, when the organism to be excluded is a crow, it is possible to effectively eliminate the starling by giving the extermination / exclusion signal 20 using the crow's “abnormal voice” to the starling or the like as its natural enemy. Become.

  FIG. 10 is a schematic configuration diagram for explaining an example of the regeneration means 40 of the organism exclusion apparatus 1A. In FIG. 10, as an example of the reproducing unit 40, a unit using a plurality of airborne ultrasonic oscillators 41 is illustrated. FIG. 10A shows an outline of a single structure of the aerial ultrasonic oscillator 41, and FIG. 10B shows a combination example of a plurality of aerial ultrasonic oscillators 41.

  As shown in FIG. 10A, in the single structure of the aerial ultrasonic oscillator 41, the basic components of the aerial ultrasonic oscillator 41 are the horn part 60, the PZT part 61 of the piezoelectric element, and the PZT. This is an electrode 63 for supplying a voltage to the pedestal 62 and the PZT 61. In the biological exclusion apparatus 1A, in order to radiate sound at a high sound pressure level and to have a wide directivity, the resonance frequency of the aerial ultrasonic oscillator 41 is about 15 kHz, and the aerial ultrasonic wave that emits sound is used. The structure which enlarged the horn part 60 of the oscillator 41 is employ | adopted.

  Further, the applied voltage withstand voltage for causing the piezoelectric action can be increased by increasing the thickness of the PZT portion 61. Further, the horn unit 60 is fixed to the entire dense (antinode) portion of the vibration mode at the time of resonance (for example, at 15 kHz), which is the primary vibration component of the PZT unit 61, and the sound from the entire horn unit 60 that has propagated the primary vibration. It is supposed to emit. With this structure, the input voltage to the aerial ultrasonic oscillator 41 can be increased, and the displacement amount of the natural vibration of the aerial ultrasonic oscillator 41 can be greatly oscillated.

  As shown in FIG. 10B, as one of means for emitting a strong sound pressure level, there is a dense formation of aerial ultrasonic oscillators 41. The sound pressure level radiated from the horn unit 60 with respect to the input voltage at one aerial ultrasonic oscillator 41 is about 100 dB at 30 cm on the central axis of the horn unit 60. When the entire horn unit 60 vibrates, an ultrasonic signal is radiated linearly from the entire horn unit 60 into the air.

  FIG. 10B shows a configuration example in which a plurality of the aerial ultrasonic oscillators 41 are gathered to form a close-packed unit. As a means for concentrating the arc portions of the horn part 60 having a round plan view, the triangular arrangement by the plurality of aerial ultrasonic oscillators 41 does not create an unnecessary gap, so that a very efficient dense formation can be formed. . Since the radiated sound is densely radiated on the axis in a straight line from each of the dense horn portions 60, the sound pressure level measured at a position 30 cm above the central axis in the configuration of FIG. 10B is about 130 dB. Become.

  FIG. 11 is a schematic configuration diagram illustrating a combination example of the aerial ultrasonic oscillator 41 in which an aggregate of the aerial ultrasonic oscillators 41 is used as one radiation area and four lumps of radiation areas are aggregated. Based on FIG. 11, a combination example of the aerial ultrasonic oscillator 41 in which four lumps of radiation areas are assembled will be described.

  When four lumps of radiation areas are assembled, it is conceivable to combine the radiation areas from radiation area A to radiation area D as shown in FIG. As described above, since the sound pressure level obtained in one radiation area is 130 dB / 30 cm, a radiation sound pressure of a sound pressure level of around 156 dB can be obtained at 30 cm on the axis by combining a plurality of radiation areas. become. Since the sound radiation is linearly performed from one radiation area by the expansion of the radiation area, the result is that the sound radiation area can be expanded. The directivity characteristics are shown in FIG.

  FIG. 12 is an explanatory diagram for explaining the directivity characteristics when the reproduction means 40 reproduces. Based on FIG. 12, the directivity characteristic when the reproduction means 40 reproduces will be described.

  When considering the exclusion of crows, etc., for example, when crows or the like remain on a steel tower, etc., the crows etc. are mostly staying in a large area. Crows that do not reach cannot be excluded.

The dotted line shown in FIG. 12 indicates the pointing specification by a known parametric speaker, and it can be seen that the directivity is narrow (within 20 degrees from the center). For this reason, the range of voice exposure to crows is narrow, and the exclusion effect is not very good.
On the other hand, the solid line shown in FIG. 12 shows the directivity characteristic by the organism exclusion device 1A, and it can be seen that the sound reproduction area (= directivity) extends in the range of about 100 degrees from the center. Therefore, according to the biological exclusion apparatus 1A, it is possible to perform voice exposure over a wide range with respect to an exclusion target organism such as a “roost” gathered in a group, and a high exclusion effect is easily obtained.

  FIG. 13 is a graph showing the output-sound pressure frequency characteristics of each reproducing means 40 configured to be driven at 15 kHz. Based on FIG. 13, an example of the output-sound pressure frequency characteristics of each reproducing means 40 configured to be driven at 15 kHz will be described. In FIG. 13, the vertical axis represents the output sound pressure frequency characteristic (dB), and the horizontal axis represents the frequency (Hz). Further, the solid line shown in FIG. 13 is an example of the frequency characteristic when driven by each reproducing means 40, and shows the reproduction frequency band at a position 30 cm away from the center of the driven portion.

  From the solid line in FIG. 13, it can be seen that the frequency corresponding to the crow-compatible voice is driven and reproduced at a maximum sound pressure level of 156 dB from about 800 Hz to about 15 kHz.

  As described above, in the organism exclusion apparatus 1A, the “pseudo audio” created using the “abnormal sound” of the organism to be excluded is superimposed on the ultrasound and randomly given to the organism to be excluded. Pest control measures can be taken by means of direct appeal to the instinct. Therefore, according to the biological exclusion device 1A, unlike the conventional product using an artificial acoustic signal created without knowing the behavior pattern of the organism to be excluded, the life of the product itself that emits sound is extended for a long time. It is possible to eliminate harmful pests (harmful animals).

  In addition, although the case where 1 A of biological exclusion apparatuses were used for the removal of a crow was demonstrated to the example, it is not limited to it. According to the biological exclusion apparatus 1A, the necessary sound can be reliably applied to a necessary place by superimposing and reproducing the sound of the organism to be excluded on the ultrasonic wave. Therefore, it can be applied to starlings and pigeons, which have many problems as harmful birds. Furthermore, according to the biological exclusion apparatus 1A, even when a randomly changing ultrasonic wave is superimposed on a carrier ultrasonic wave instead of a voice, the randomly changing ultrasonic wave propagates with a wide directivity characteristic at a distant place. To do. Therefore, since ultrasonic waves with a strong sound pressure level can be exposed, the same effect can be expected for mammals such as cats and dogs that can hear ultrasonic waves.

  Further, when the exclusion sound superimposed on the ultrasonic wave from the reproduction unit 40 propagates to the exclusion target organism such as the crow away from the reproduction unit 40 and collides with the exclusion target organism, the exclusion sound included in the ultrasonic wave And an ultrasonic signal having a higher sound pressure level are demodulated simultaneously. For this reason, a sound with a high sound pressure level is not always heard over the entire environment where the biological exclusion device 1A is installed. According to the biological exclusion apparatus 1A, there is no concern that the sound is exposed to the house in the vicinity of the reproduction means 40. Therefore, it is possible to eliminate the organism to be excluded by quiet sound radiation.

  In addition, in the organism exclusion apparatus 1A, “light” is added to the organism to be excluded as an adding means other than sound, but the present invention is not limited to this. “Pressure” can be applied as an application means other than sound. For example, the biological exclusion device 1A may be configured to include pressure applying means (air cannon). The pressure applying means applies a “pressure wave” as an applying means other than sound. That is, pressure waves are applied by firing air.

Embodiment 2. FIG.
14-17 is explanatory drawing for demonstrating the example of installation of the biological exclusion apparatus which concerns on Embodiment 2. FIG. Based on FIGS. 14-17, Embodiment 2 which is a specific installation example of the biological exclusion apparatus 1A according to Embodiment 1 will be described.

In FIG. 14, the example of installation of the biological exclusion apparatus 1A to the utility pole 150 is shown.
In places where there are steel towers and utility poles that carry power, etc., organisms to be excluded may stop at the steel towers and utility poles themselves, or the power lines themselves. For steel towers and utility poles, when the organisms to be excluded reach the breeding season, nests are created and power outage problems due to short-circuits often occur.

In order to deal with such a problem, as shown in FIG. 14, the biological exclusion device 1 </ b> A may be installed at the base of the utility pole 150 or in the middle of the utility pole 150. By doing so, it becomes possible to efficiently exclude the organism to be excluded from the utility pole 150. In addition, if the biological exclusion device 1A is installed at both ends such as between the power lines over which the utility poles 150 are connected, it is possible to eliminate the stop of the organism to be excluded from the electric wire.
When the organism exclusion device 1A is installed, as shown in FIG. 14, it is installed so that “sound” or the like can be given to a place where the organism to be excluded is supposed to stop.

In FIG. 15, the example of installation of the biological exclusion apparatus 1A in the building 160 is shown.
It is assumed that the organisms to be excluded gather at places away from humans, such as in the interior of a building 160 such as an outdoor house, warehouse, or station. Alternatively, it is assumed that the organisms to be excluded gather in the gap near the roof of the building 160.
In addition, there are cases where nets are used to protect railway users from droppings that fall from above on platforms in stations, etc., but from the viewpoint of maintenance such as wiring on the upper part, the nets are not spread all over. Absent.

In order to deal with such a problem, as shown in FIG. 15, when the organism exclusion devices 1 </ b> A are installed at locations where it is assumed that the organisms to be excluded at the upper part of the building 160 gather, at arbitrary intervals. Good. By doing so, it becomes possible to efficiently exclude the organism to be excluded from the building 160.
When the organism exclusion device 1A is installed, as shown in FIG. 15, the organism exclusion device 1A is installed so that “voice” or the like can be given to a place where the organism to be excluded is supposed to stop.
It should be noted that light and pressure also work effectively on excluded organisms that are inferior to voice communication, such as pigeons and squirrels.

FIG. 16 shows an installation example of the biological exclusion apparatus 1A on the utility pole 171 installed in the vicinity of the garbage storage place 170.
There is a problem that the garbage 172 is devastated by collecting the organisms to be excluded aiming at the garbage 172 coming out of ordinary houses or apartment houses.

In order to deal with such a problem, as shown in FIG. 16, the biological exclusion device 1 </ b> A may be installed in the upper part of the garbage storage place 170, that is, in the middle of the utility pole 171. For example, while the garbage 172 is placed, “sound” or the like may be radiated from the biological exclusion device 1A toward the garbage 172 by temporal control (for example, from 6 am to 9 am). .
By doing so, the “sound” necessary for removal is always output from the garbage 172. Since this “speech” poses a danger to the organism to be excluded, the sound from the garbage 172 causes a fear that the friend has been captured, etc. You can create a state where creatures do not gather.

In addition, by changing the force of pressure to be applied and the wavelength of light, it is possible to affect cats, hakubishin, deer, raccoon dogs, bears, etc., which are also found in recent cities.
FIG. 16 shows an example in which the biological exclusion device 1A is installed on the utility pole 171. However, the present invention is not limited to this, and the biological exclusion device is provided at a position where “speech” or the like can be given to the garbage 172. What is necessary is just to install 1A.

FIG. 17 shows an installation example of the biological exclusion device 1 </ b> A on the aircraft 180 and the runway 181.
The aircraft 180 has a problem of bird strike in which an organism to be excluded such as a bird collides.

  In order to cope with such a problem, as shown in FIG. 17, it is preferable to install the biological exclusion apparatus 1A on an aircraft 180 or a runway 181 of an airfield. By doing so, it is possible to cope with the bird strike problem. That is, if the biological exclusion device 1A is mounted on the aircraft 180, “voice” or the like can be given in advance from the aircraft 180, and if the biological exclusion device 1A is installed on the runway 181, “sound” is preliminarily provided from the runway 181. And the organisms to be excluded that are swarming in the vicinity of the runway 181 can be effectively excluded before the aircraft enters.

  The biological exclusion device 1A may be installed only on either the aircraft 180 or the runway 181 or on both sides. The organisms to be excluded can be more effectively excluded by installing them on both sides and appropriately adjusting the timing of application.

In the second embodiment, there is no particular reference to the timing of giving “speech” or the like from the organism exclusion device 1A, but it may be always given, or may be given when an organism to be excluded is detected. . In this case, it is necessary to separately provide an animal detection sensor using infrared rays, ultrasonic waves, visible light, or an imaging device such as a camera.
Furthermore, the grant start time, grant end time, or grant time interval may be determined in advance, and the grant timing may be controlled by time.

  1A Biological Exclusion Device, 10 Ultrasonic Signal Generating Unit, 12 Exclusion Signal Unit, 20 Exclusion / Exclusion Signal, 21 Original Audio Signal, 22 Pseudo Signal, 23 Ultrasonic Signal, 24 Transient Signal, 25 Processing Circuit Unit, 30 Adder , 35 amplifier, 40 reproduction means, 41 aerial ultrasonic oscillator, 50 control section, 51 CPU section, 52 imparting function control means, 60 horn section, 61 PZT section, 62 pedestal, 63 electrode, 70 light emitting means, 80 audio transmission Means, 150 utility poles, 160 buildings, 170 garbage storage, 171 utility poles, 172 garbage, 180 aircraft, 181 runway.

Claims (10)

A biological exclusion device that excludes organisms to be excluded,
Create a pseudo voice using a time change that appears in the frequency of the original voice generated when the organism to be excluded is abnormal,
The pseudo sound is superimposed on an ultrasonic signal, and is emitted as a sound pressure level equal to or greater than or equal to the sound pressure level of the sound emitted by the organism to be excluded ,
The original sound generated when the organism to be excluded is abnormal,
400 Hz to 800 Hz frequency band,
800 Hz to 2 kHz frequency band,
It has a tendency to change from the maximum sound pressure level to −30 dB in the order of the frequency band of 2 kHz to 4 kHz ± 1 kHz.
The pseudo voice is
In the frequency band of 400 Hz to 800 Hz, change around 500 Hz + 200 Hz,
In the frequency band of 800 Hz to 2 kHz, change around 1.2 kHz + 500 Hz,
In the frequency band of 2 kHz to 4 kHz ± 1 kHz, change around 4 kHz + 1000 Hz,
400 Hz to 800 Hz frequency band,
800 Hz to 2 kHz frequency band,
A biological exclusion device created by changing the maximum sound pressure level to −30 dB in the order of the frequency band of 2 kHz to 4 kHz ± 1 kHz . A biological exclusion device that excludes organisms to be excluded,
Create a pseudo voice using a time change that appears in the frequency of the original voice generated when the organism to be excluded is abnormal,
The pseudo sound is superimposed on an ultrasonic signal, and is emitted as a sound pressure level equal to or greater than or equal to the sound pressure level of the sound emitted by the organism to be excluded,
An audio signal based on the original audio;
An audio signal by the pseudo audio,
Amplitude-modulated or frequency-modulated audio signal in the ultrasonic band,
as well as,
Transient sound signal
Randomly selected and output
Raw materials excluding device. The pseudo voice is
The biological exclusion device according to claim 1 or 2, wherein sound generation times of each frequency band are equally distributed and are created in 0.2 seconds to 1.0 seconds. The organism exclusion apparatus according to any one of claims 1 to 3 , further comprising a light emitting unit capable of issuing light imparted to the organism to be excluded. Biological elimination device according to any one of claims 1-4, further comprising a pressure applying means capable of applying the pressure applied to the elimination target organism. The biological exclusion device according to any one of claims 1 to 5 , wherein a frequency band of the ultrasonic signal is 43 kHz or more. The biological exclusion apparatus according to any one of claims 1 to 6 , which is installed on a utility pole or a steel tower. The biological exclusion device according to any one of claims 1 to 6 , which is installed on the premises of a building. The biological exclusion apparatus according to any one of claims 1 to 6 , which is installed in the vicinity of a garbage storage area. Biological elimination device according to any one of claims 1 to 6 installed in at least one of the aircraft and the runway.

Images