JP2002186402A - Method for preventing bird and animal from intruding by multiple irradiation with laser beam - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for preventing birds and animals from intruding by a multiple irradiation of laser beams, capable of exhibiting a permanent intimidation performance by hitting the laser beam surely to the naked eyes of the birds and animals giving a strong dazzling irritation to their retinas and also being advantageous both in view of the cost of equipment and running cost. SOLUTION: This method for preventing the birds and animals from intruding is to take a measure of forming a laser beam net in a space for preventing the birds and animals from intruding by irradiating many laser beams multiply in a gathering state to the above space, and intimidating for running them away by giving the dazzling irritation to the retinas of them intruding into the above laser net.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in the technique of releasing birds and beasts. The present invention relates to an epoch-making method for preventing invasion of birds and beasts by irradiating a laser beam directly to the naked eye of a coming bird and beast, giving a strong glare stimulus to the retina, and allowing menacing escape.

[0002]

2. Description of the Related Art As is well known, appreciation fish and cultured fish in garden ponds and fish farms are damaged by water birds such as herons and seagulls, and crops in orchards and fields are reduced to wild animals such as wild monkeys, bears, crows and sparrows. The damage caused by birds and beasts, such as being devastated and also causing crows to drag out only the leftovers from the garbage dumps on the street corners and contaminate the streets, is becoming more severe each year, and effective countermeasures have been taken. Is required.

Further, it has been pointed out that an aircraft accident caused by a failure of a jet engine caused by birds such as pigeons and sparrows living near an airfield being sucked into an engine intake port of a jet aircraft has been pointed out. I have.

[0004] Conventionally, methods generally employed to prevent such damage from birds and beasts include setting up a ladle, installing a streamer in the shape of a bird of prey (eagle, eagle, owl, etc.), Or a glittering gold and silver tape was wrapped around the fields and orchards. However, while these methods of intimidation are temporarily effective, sparrows and crows accustomed to humans will soon stop and play on them as soon as they realize that they are only non-aggressive figurines. It is completely ineffective. Of course, the companies that supply these threatening materials also make improvements such as devising the above-mentioned raptor streamers to behave like a real thing, or incorporating an ultrasonic oscillator or speaker to emit a threatening sound. Despite their efforts, sparrows and crows quickly get used to them, and they look like a complete weasel, and when it comes to mammals such as monkeys, their intelligence quotients are high, so these threats do nothing at all. That is the fact.

[0005] For these reasons, in fields and orchards,
Enclose the entire area with protective fences so that birds and animals do not invade,
A method of covering the entire surface with durable netting has also been adopted, but equipment costs are expensive and repair costs are also required. There is a problem that the burden of running costs is heavy because replacement has to be performed.

[0006] In addition, a method of playing an explosion sound or an unpleasant sound with a siren, an air gun or a firecracker has been tried, but it is not always possible to play an explosion sound or an unpleasant sound all the time. I can't, and complaints are coming out of the neighborhood because of trouble.

Therefore, the inventor of the present invention has adopted a flash device which emits strong light instantaneously as a threatening means which is quiet and does not burden the equipment cost and running cost so much. The illuminance of flash light attenuates in inverse proportion to the square of the distance, so-called "distance inverse square law"
In addition to having to set up a large number of large target areas in order to work, it was inevitable that birds and animals would become less effective as they learned.

[0008] However, one day, the present inventor who is engaged in school education mistakenly operated a laser pointer (laser indicator) which is usually used, and the laser beam entered his own eyes, and was instantaneous. However, she experienced severe irritation to her retina, and for a while she became dazzled and difficult to see. The name of the injury, at that time, the inventor thought that irradiating a laser beam to the naked eye of a bird or animal would be effective in intimidating the bird and animal, and tried irradiating the laser pointer toward the herd of herons. However, it was almost impossible to illuminate and hit the sight of a heron far away. However, it was confirmed that, in rare cases, the heron was surprised and ran away.

[0009]

SUMMARY OF THE INVENTION The present invention has been made to further develop the knowledge that a very large threat can be obtained when a laser beam irradiates the retina of a bird or animal with glare. An object of the present invention is to provide an effective bird and animal intrusion prevention method that can reliably hit a naked eye of a bird or animal, which is a small target, give a strong glare stimulation to the retina and cause threatening escape. It is in.

Another technical problem of the present invention is to prevent birds and animals from invading by multi-irradiation of a laser beam with a high durable threat, which can make the birds and animals learn fear by giving a strong glare stimulation to the retina. There is a way to provide.

A further technical object of the present invention is to provide a method of preventing invasion of birds and animals by multi-irradiation of a laser beam, which is very economical in terms of both equipment cost and running cost.

[0012]

Means adopted by the present inventor to solve the above-mentioned problems will be described below with reference to the accompanying drawings.

That is, the present invention provides a laser beam multi-irradiation means for irradiating a plurality of laser beams L in a collective state to a space where birds and animals A are to be prevented from entering, thereby forming a laser beam network Ln in the space. Is characterized in that the retina of the bird and animal A that has entered the laser net Ln is given a glare stimulus to escape threateningly.

The objects of the present invention include garden ponds, fish ponds, fields, orchards, mushroom gardens, and buildings and power transmission facilities, as well as birds and beasts such as airfields, which may cause damage and obstacles. All the places where there is.

As the equipment for irradiating the laser beam in a collective state, a laser (to be described later, for example, as shown in FIGS. 5 to 7) constituted by arranging a number of laser light emitting elements at a predetermined density is used. The irradiator 1 is used. The laser light emitting element provided in the laser irradiator 1 does not need to have a large output, and is usually GaAs having an optical output of about 3 to 5 mW (DC 5 V, current: about 40 mA).
If a system red-visible semiconductor laser element is used, sufficient threatening performance is exhibited even when irradiation is performed from a distant position about 300 m away. Of course, it is naturally possible to employ a laser light emitting element with a higher output, but there is a danger,
It is preferable to use within a safe range.

The laser light emitting element of the laser irradiator 1 may emit the laser beam L continuously at a constant luminance. Of course, the luminance may be changed by blinking or changing the luminance by a known circuit means. Light may be emitted.
On the other hand, a bird and beast detection sensor 2
It is also effective to install an (infrared sensor or the like) and activate the laser irradiator 1 using the output signal as a bird and animal approach signal when the sensor 2 reacts and detects the approach of the bird and animal A. .

The size of the laser beam network Ln formed by the laser irradiator 1 is determined by the irradiation area of the irradiator 1a. The laser beam network Ln can be applied uniformly to the entire space where the laser beam L needs to be irradiated, and the irradiation density of the laser beam L can be increased by placing the reflection mirror in the irradiation space of the laser irradiator 1.
It is also possible to expand the area of the laser beam network Ln.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail based on preferred embodiments shown in the accompanying drawings.

[First Embodiment] FIG. 1 is a first view showing a situation in which a heron (bird or beast) A flies in the garden pond of a mansion, aiming at appreciation fish FF. FIG. 3 is an explanatory diagram of the embodiment, and in the present embodiment, a space including the garden pond P is an object to prevent birds and beasts from entering.

In this embodiment, the house H
Shows a state in which a laser irradiator 1 is installed on the veranda on the second floor, and a laser beam network Ln covering the entire area of the garden pond P is formed by oscillating the irradiating section 1a of this laser irradiator 1 vertically and horizontally. ing.

Thus, the laser beam network Ln
When the heron A in the sky descends on the garden pond P in which is formed, the laser beam L is irradiated at a high density there, so that any laser beam L always hits the naked eye of the heron A. Then, the flying heron receives a strong glare stimulus to the retina and escapes in a surprise panic.

[Second Embodiment] FIG. 2 shows that the traverse arm T of the overhead power transmission line support tower S does not allow birds (crows and pigeons in the vicinity of human villages to nest in falcons and falcons in mountainous areas). This shows a second embodiment of the present invention in which the laser irradiator 1 is installed as described above to form a laser beam network Ln in a space including the traverse arm T.

If the laser beam net Ln is formed in the space including the traverse arm T by the method of the second embodiment, for example, no matter how cunning the crow is, it is impossible to approach the traverse arm T. A nest cannot be formed, and thus a short-circuit accident of a transmission line due to bird nesting can be reliably prevented.

Third Embodiment FIG. 3 shows a third embodiment of the present invention in which a laser irradiator 1 is installed on a veranda V of a building to form a laser beam network Ln. According to the method of the third embodiment, crows and pigeons cannot approach each other, so that it is possible to surely prevent scab damage, and since no garbage is carried, dirt on the building can be reduced. Cries early in the morning, and noisy footsteps will not disturb sleep.

[Fourth Embodiment] FIG. 5 shows an infrared detector which responds to the body temperature of a beast when a beast such as a monkey or a boar approaches the vegetable field G facing the forest.
.. Are installed at a point that will be an intrusion path, and when any one of the bird and animal detection sensors 2... FIG. 14 is an explanatory diagram illustrating a fourth embodiment of the present invention in which a laser irradiator 1 is activated as an approach signal to repel a beast such as a monkey or a boar by surrounding a laser beam network Ln.

According to the method of the fourth embodiment,
Since the laser irradiator 1 is not activated, the equipment used lasts longer and the power consumption is reduced, which is economical. In addition, if the laser irradiator 1 is always in the irradiation state, the primate monkey works wisely, so there is no possibility that the primate monkey may enter using a tool that blocks the laser beam L. If the laser irradiator 1 is controlled by the bird and beast detection sensor 2, the intruding monkey will be hit unexpectedly, so that the laser beam L cannot be cut off and can be reliably dissipated.

As described above, the first to fourth embodiments to which the present invention is specifically applied have been described. However, the present invention is by no means limited to the above-described embodiments. Various modifications can be adopted within the scope of the claims, and the modifications can be applied to the present invention flexibly according to the circumstances of the space in which birds and animals are to be prevented from entering.

As a laser irradiator usable in the method of the present invention, for example, a laser irradiator shown in FIG. 5 is exemplified. This laser irradiator 1 is configured such that one surface of a rectangular plate supported upright on a support 1b is an irradiation portion 1a,
In 1a, 36 laser light emitting elements 11 (GaAs laser diodes) are arranged at 3 cm intervals. The lower end of a support 1b of the laser irradiator 1 is connected to a drive shaft of a reciprocating rotation motor 12, so that the irradiation unit 1a can reciprocate at an arbitrary irradiation angle, and a horizontal axis is provided at the lower end edge of the rectangular plate. 1c is fixed, and is configured to be able to be swung up and down at an arbitrary irradiation angle by driving the rollover motor 13. This type of laser irradiator 1 is suitable for the first embodiment described above.

The laser irradiator 1 shown in FIG. 6 has a large number of laser light emitting
.. Are arranged. This type of laser irradiator 1 is suitable for preventing birds and beasts from entering a space with a large cropping area such as a rice field or a field and a relatively low height of crops.

Further, the laser irradiator 1 shown in FIG.
It is a handheld type pistol type, the front side corresponding to the muzzle is the irradiation part 1a, and by pulling the trigger switch 1d with a finger, the laser light emitting elements 11 and 11 arranged in the irradiation part 1a・ ・ ・ ・ ・ Laser beam L ・ L
... is emitted. In addition, three AA batteries are loaded in the grip portion of this pistol type laser irradiator 1, and light emission operation is performed at 4.5 VDC.

[0031]

As described above with reference to the embodiments, according to the present invention, the space where the invasion of birds and beasts is to be prevented is irradiated with a multiplicity of laser beams in a collective state. Since a laser beam network is used to form a laser beam network, any one of the laser beams can indirectly strike the naked eye of an invading bird and beast to give a strong glare stimulation to the retina. It is almost impossible for birds and animals to learn and become accustomed to intimidation like a method, rather, if a laser beam network is formed for a certain period of time, birds and animals instinctively learn fear and stop laser irradiation for a long time. Even if it was, the effect of hesitating to invade was obtained. Also, unlike the conventional method of generating explosive sound or unpleasant sound, the method can be executed quietly, and does not cause noise pollution.

As described above, the method of the present invention not only can eliminate the ineffectiveness of the threatening effect by learning, which is a common drawback in the conventional wildlife hunting technique, but also uses an inexpensive laser light emitting device and a surprisingly high efficiency with low power. Can exhibit the birds and beasts escape effect, and its practical effects and economic benefits are extremely large.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a first embodiment showing a situation in which a heron flies in the garden pond of a mansion, aiming at an appreciation fish swimming.

FIG. 2 is a view illustrating the present invention in which a laser irradiator is installed on a traverse arm of an overhead power transmission line support tower so that birds do not nest, and a laser beam network is formed in a space including the traverse arm. FIG. 6 is a configuration explanatory diagram of the second embodiment of FIG.

FIG. 3 is an explanatory view of a third embodiment of the present invention in which a laser irradiator is installed on a veranda of a building to form a laser beam network.

FIG. 4 is an explanatory diagram showing a fourth embodiment of the present invention in which a laser irradiator that forms a laser beam network in conjunction with a bird and beast detection sensor is installed in a vegetable field facing a mountain forest.

FIG. 5 is a perspective explanatory view of an installation type square plate type laser irradiator used in the method of the present invention.

FIG. 6 is an explanatory perspective view of an installation type cylindrical laser irradiator used in the method of the present invention.

FIG. 7 is a perspective explanatory view of a handy type pistol type laser irradiator used in the method of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Laser irradiation device 1a Irradiation part 1b Strut 1c Horizontal axis 1d Trigger switch 11 Laser light emitting element 12 Reciprocating turning motor 13 Reciprocating rollover motor 2 Bird and beast detection sensor A Bird and beast (in the illustrated example of the first embodiment, a heron) F Fish G Vegetable Field L Laser beam Ln Laser beam network P Garden pond S Overhead transmission line support tower T Traverse arm V Veranda

Claims (5)

[Claims] 1. A laser beam network is formed in a space where the invasion of birds and animals is to be prevented by irradiating a large number of laser beams in a collective state, and the retina of the birds and animals that have entered the laser network is dazzled. A method for preventing invasion of birds and animals by multi-irradiation of a laser beam, characterized by giving a stimulus to let the men escape. 2. The method according to claim 1, wherein a laser beam network is formed by continuously or intermittently irradiating a laser beam from a plurality of laser light emitting elements. 3. A wide-area laser beam network is formed by oscillating an irradiation part of a laser irradiation irradiator for irradiating a plurality of laser beams in a collective state with respect to a space where birds and animals are prevented from entering. Claim 1 characterized by the following:
Or the method for preventing invasion of birds and animals by multi-irradiation of a laser beam according to 2. 4. A reflecting mirror is provided at the rear of a space to prevent birds and beasts from invading the irradiation part of the laser irradiator, and a plurality of laser beams emitted from the laser irradiator are reflected by the reflecting mirror. A method for preventing birds and beasts from invading by multi-irradiation of a laser beam, which is reflected to increase the beam density in the laser beam network. 5. A bird and animal detection sensor for detecting approach of a bird and beast is installed in the vicinity of a space where entry of the bird and animal is to be prevented, and a bird and animal approach signal output when the bird and animal detection sensor detects the bird and beast. A method for preventing bird and animal invasion by multi-irradiation of laser beams, wherein the laser irradiators irradiate a plurality of laser beams to form a laser beam network in the space by activating the laser irradiators in conjunction with each other. .