TWI728897B - Animal avoidance device and animal avoidance method - Google Patents

Abstract

The present invention provides an animal avoidance device and an animal avoidance method. The animal avoidance device is an animal avoidance device, is suitable for miniaturization, and includes a new mechanism for displacing the light irradiation area of light from a condensing part. The animal avoidance device 10 includes: a light source 11 to irradiate laser light L; and a diffraction grating 12 to change the traveling direction of the laser light L emitted from the light source 11; by changing the relative position of the diffraction grating 12 with respect to the light source 11, As a result, the position of the light irradiation area SP1 of the laser light L passing through the diffraction grating 12 on the ground surface F as the irradiation target is changed.

Description

Animal avoidance device and animal avoidance method

The present invention relates to an animal avoidance device and an animal avoidance method. Specifically, for example, it relates to a device that emits light that is avoided by animals that cause damage to indoor arrangements or outdoor farming fields at night.

Patent Document 1 describes an animal avoidance device, including: a light source; a light condensing part to condense a part of the light emitted from the light source; and a first displacement part to make the condensing part relative to the light source The relative position changes to shift the light irradiation area of the light from the condensing part formed on the ground, and the condensing part includes a convex lens. The animal avoidance device described in Patent Document 1 condenses the light radiated from the light source by a convex lens included in the condensing section, and forms a light irradiation area on the floor or wall surface. Therefore, it is difficult to reduce the mechanism for displacing the light-irradiated area of light and to miniaturize the device.

[Prior Technical Literature]

[Patent Literature]

[Patent Document 1] Japanese Patent No. 6387501

The object of the present invention is to provide an animal avoidance device and an animal avoidance method. The animal avoidance device includes a new mechanism for displacing the light irradiation area of light. Structure, and suitable for miniaturization.

The present invention provided in order to solve the above-mentioned problems is as follows.

[1] An animal avoidance device, comprising: a light source for irradiating laser light; and a diffraction grating to change the traveling direction of the laser light emitted from the light source; by making the diffraction grating relative to the light source The relative position of the laser beam is changed, so that the light irradiation area of the laser light passing through the diffraction grating changes the position of the irradiated object.

[2] The animal avoidance device according to [1], wherein the light irradiation area forms a pattern on the surface of the irradiation target.

[3] The animal avoidance device according to [1], wherein the diffraction grating is provided on the plate-shaped member, and by rotating the plate-shaped member, the diffraction grating corresponds to the light source The relative position changes.

[4] The animal avoidance device according to [3], wherein the plate-shaped member includes a first diffraction grating and a second diffraction grating, and the first diffraction grating and the second diffraction grating are The pattern of the light irradiation area formed on the surface of the irradiation target by passing the laser light is different.

[5] The animal avoidance device according to [4], wherein the light source is plural.

[6] The animal avoidance device according to [5], wherein the plurality of light sources include light sources that emit the laser light with different wavelengths.

[7] The animal avoidance device according to [5], wherein the plurality of light sources respectively include two light sources emitting the laser light with different wavelengths, and from the two light sources emitting the laser light with the same wavelength The laser light emitted by the light source is in it One can pass through the first diffraction grating, and the other can pass through the second diffraction grating.

[8] An animal avoidance method in which the animal avoidance device described in any one of [1] to [7] is installed on a ceiling or a wall, and the animal avoidance device is used to form an area on the surface of an irradiation target. The light irradiation area of the laser light is shifted.

[9] The animal avoidance method described in [8], wherein the animal avoidance device irradiates a stainless steel indoor arrangement with laser light to shift the light irradiation area on the surface of the indoor arrangement, and at the same time, The reflected laser light reflected from the indoor arrangement is shifted to the light irradiation area formed on the surface of the irradiation target.

According to the present invention, by combining the light source for irradiating the laser light and the diffraction grating, the rotation mechanism for displacing the light irradiation area can be reduced, so an animal avoidance device suitable for miniaturization can be provided. In addition, by using the animal avoidance device of the present invention, it is possible to drive out animals that cause damage to indoor arrangements, or to prevent animals from approaching outdoor farming grounds. The invention also provides an animal avoidance method.

10, 10A, 10B: Animal avoidance device

11, 11A, 11B: light source

12: Diffraction grating

12A: First diffraction grating

12B: Second diffraction grating

13: Plate member

14: Rotating mechanism

15: body

16: install components

20: Indoor configuration

Ax: Optical axis

F: Ground

L: Laser light

LR: Reflected laser light

S: Ceiling

SP1, SP2: light irradiation area

W: wall surface

WX, WZ: width

Fig. 1(a) is a diagram explaining the structure of the animal repelling device of the first embodiment, and Fig. 1(b) is a diagram showing the pattern of the light irradiation area formed by the animal repelling device on the surface of the irradiation target.

Figure 2 (a) shows the main structure of the animal avoidance device of the first embodiment Fig. 2(b) is a diagram showing the movement of the light irradiation area formed on the surface of the irradiation target by the animal avoidance device.

Fig. 3(a) is a diagram showing the configuration of the main part of the animal repelling device of the second embodiment, and Fig. 3(b) is a diagram showing the pattern of the light irradiation area formed by the animal repelling device on the surface of the irradiation target.

Fig. 4(a) is a diagram showing the configuration of the main part of the animal repelling device of the third embodiment, and Fig. 4(b) is a diagram showing the pattern of the light irradiation area formed by the animal repelling device on the surface of the irradiation target.

5(a), 5(b), and 5(c) are diagrams showing the light irradiation area formed by the third animal repellent device on the surface of the irradiation target.

Fig. 6 is a diagram for explaining the implementation of the indoor animal avoidance method of the fourth embodiment.

Fig. 7 is a diagram illustrating an implementation mode of an animal avoidance method for irradiating a stainless steel indoor arrangement with light according to a fourth embodiment.

Hereinafter, an embodiment of the present invention will be described based on the drawings. In addition, in the following description, the same reference numerals are given to the same members, and the description of the members that have already been described is appropriately omitted.

Fig. 1 (a) is a diagram explaining the structure and operation of an animal repellent device according to an embodiment of the present invention, and Fig. 1 (b) is a pattern showing a light irradiation area formed by the animal repellent device on the surface of an irradiated object Figure.

Figure 1 (a) and Figure 1 (b) shown in 10 packs of animal avoidance devices It includes: a light source 11 irradiating laser light L; and a plate-shaped member 13 having a diffraction grating 12 that changes the traveling direction of the laser light L emitted from the light source. The plate-shaped member 13 is attached to the main body 15 via the rotation mechanism 14, and the main body 15 is installed on the ceiling S using the attachment member 16. By using the rotating mechanism 14 to rotate the plate-shaped member 13, the relative position of the diffraction grating 12 with respect to the light source 11 can be changed. Thereby, the position of the light irradiation area SP1 of the ground surface F of the laser light passing through the diffraction grating 12 can be changed.

Fig. 1 (a) shows a situation in which the animal avoidance device 10 is provided so that the optical axis Ax of the laser light emitted from the light source 11 is parallel to the Y axis. In this case, the plate-shaped member 13 of the animal avoidance device 10 maintains its surface parallel to the XZ plane, and rotates with the direction parallel to the optical axis Ax (Y axis) as the rotation axis. The relationship between the optical axis Ax, the rotation axis of the plate-shaped member 13, and the Y axis is not limited to this. The animal avoidance device 10 may be installed such that the optical axis Ax of the laser light crosses the Y axis, and the plate-shaped member 13 may be installed such that the rotation axis is not parallel to the optical axis Ax.

The plate-shaped member 13 is provided with a diffraction grating 12 in the region through which the laser light L passes. Therefore, the laser light L irradiated from the light source 11 passes through the diffraction grating 12 to form a pattern of the light irradiated area SP1 on the floor F as the irradiation target. Here, the "pattern" refers to the light irradiation area SP1 formed on the surface of the floor F (XZ plane) to expand two-dimensionally, that is, to expand in both the X-axis direction and the Z-axis direction. Therefore, for example, the light irradiation area SP1 including only one straight line is not included in the "pattern".

In (b) of FIG. 1, an example in which the light irradiation area SP1 expands equally in the X-axis direction and the Z-axis direction is shown, but the pattern may also expand unevenly. However, just From the viewpoint of exerting the animal repellent effect in a wide range, a pattern that spreads equally is preferable. For example, the aspect ratio (WX/WZ) of the width (WX) in the X-axis direction and the width (WZ) in the Z-axis direction of the light irradiation region SP1 is preferably about 0.5-2.

Fig. 2(a) is a diagram showing the configuration of the main part of the animal repellent device, and Fig. 2(b) is a diagram showing the movement of the light irradiation area SP1 formed on the surface of the irradiated object by the animal repellent device. In (b) of FIG. 2, the trajectory of the pattern movement of the light irradiation area SP1 is represented by a hollow circle.

By using the rotating mechanism 14 to rotate the plate-shaped member 13, the relative position of the diffraction grating 12 with respect to the light source 11 is changed. Thereby, the light irradiation area SP1 moves to the position of the floor surface F, and forms a trajectory as shown in FIG.2(b), for example. The diffraction grating 12 only needs to be provided in the region through which the laser light passes, and does not need to be provided on the entire plate-shaped member 13.

The pattern of the light irradiation area SP1 moves on the ground F in a trajectory manner, thereby effectively avoiding animals. Animals to be avoided include not only mammals such as mice and moles, or birds such as crows, but also arthropods including insects such as cockroaches and flies, or spiders. If the light-irradiated area SP1 rotates on the ground F, the animal to be avoided will mistake the light-irradiated area SP1 as its own predator or repellent, making it difficult to approach the ground F.

Furthermore, the plate-shaped member 13 including the diffraction grating 12 can be easily configured with a small and light member. Therefore, the load applied to the rotation mechanism 14 when the position of the light irradiation area SP1 moves on the floor surface F becomes small. Therefore, the durability and reliability of the animal repellent device 10 are improved, and it is useful. Moreover, by using a plate-like structure including the diffraction grating 12 The device 13 can be miniaturized the animal repellent device 10.

The light irradiation area SP1 does not need to move in all of the movable area (moving area) shown in (b) of FIG. 2. For example, by turning on and off the light source 11, the light irradiation area SP1 may move in a part of the moving area. If the light-off is performed irregularly, it is difficult for the animal to be avoided to notice that the light-irradiated area SP1 only moves within the area, and the effect of avoiding the animal may be improved.

In addition, the animal avoidance device 10 of this embodiment may further include a frame that surrounds the light source 11 and the plate member 13 in a state where the laser light L can be emitted. Since light leakage from the light source 11 can be prevented by the frame, it is also possible to prevent light-concentrating animals (insects, etc.) from approaching the animal repellent device 10.

(Second Embodiment)

The animal avoidance device 10A of this embodiment is different from the animal avoidance device 10 shown in FIG. 1 in that the plate-shaped member 13 includes a diffraction grating with different patterns formed by the light irradiation area of light passing through the diffraction grating. The (first diffraction grating) 12A and the diffraction grating (second diffraction grating) 12B, and two light sources 11 are included.

Fig. 3(a) is a diagram showing the main structure of an animal repellent device according to another embodiment of the present invention, and Fig. 3(b) is a pattern showing the light irradiation area formed by the animal repellent device on the surface of the irradiated object Figure.

As shown in Fig. 3(a), when the laser light from the light source 11 passes through the diffraction grating 12A, and when the laser light from the light source 11 passes through the diffraction grating 12B, on the ground F (refer to ( a) and Fig. 1(b)) form different patterns. In (b) of FIG. 3, the following situation is shown as an example, namely: the light irradiation area SP1 forms a pattern in which small dots are arranged radially, and the light irradiation area SP2 forms a pattern in which four rings are evenly arranged. By rotating the plate-shaped member 13 by the rotation mechanism 14, the pattern of the light irradiation area SP1 and the pattern of the light irradiation area SP2 move on the floor F.

In this way, by providing the diffraction grating 12A and the diffraction grating 12B in each area facing each light source 11, different patterns can be formed on the ground F at the same time. Thereby, the repellent effect of animals can be improved.

Moreover, the diffraction grating 12A and the diffraction grating 12B may also be designed such that the light irradiation area SP1 and the light irradiation area SP2 move in different trajectories. Thereby, the movement of the pattern of the laser light L on the ground surface F becomes complicated, and therefore, the repellent effect on the animal to be repelled can be improved. In addition, in the present embodiment, an example in which the two light sources 11 have the same structure has been described, but a light source that irradiates laser light with different wavelengths may also be used.

(Third Embodiment)

The animal avoidance device 10B of this embodiment is different from the animal avoidance device 10A shown in Figs. 3(a) and 3(b) in the following respects, namely: two light sources 11A and light sources that emit laser light of different wavelengths 11B has two each, including four light sources in total.

The light source 11A and the light source 11B emit laser lights of different wavelengths (colors). The laser lights emitted from the two light sources 11A are constructed in such a way that while one of them can pass through the diffraction grating 12A, the other can pass through the diffraction grating 12A. Radiation grating 12B. Moreover, the laser light L emitted from the two light sources 11B is also the same as the laser light L emitted from the light source 11A. Similarly, it is constructed in such a way that one of them can pass through the diffraction grating 12A, and the other can pass through the diffraction grating 12B.

Fig. 4(a) is a diagram showing the main structure of the animal avoidance device 10B of this embodiment, and Fig. 4(b) shows the animal avoidance device 10B on the ground F (see Fig. 1(a) and Fig. 1 (b) A diagram of the pattern of the light irradiation area SP1 and the light irradiation area SP2 formed on the surface of (b)).

As shown in FIG. 4(a), the light source 11A and the light source 11B are each provided at a position where the laser light passing through the diffraction grating 12A can be emitted. In addition, a light source 11A and a light source 11B are also provided at a position where the laser light passing through the diffraction grating 12B can be emitted. With this structure, both the diffraction grating 12A and the diffraction grating 12B can selectively emit laser light from the light source 11A or the light source 11B.

Regarding the diffraction grating 12A and the diffraction grating 12B, depending on which of the light source 11A or the light source 11B emits the laser light, it is possible to easily change FIG. 4(b) and FIG. 5(a) to FIG. 5(c) ) Shows the four combinations of laser light and patterns. Thereby, it is possible to increase the repellent effect by selecting a combination suitable for the animal to be avoided, or to maintain the repellent effect for a long period of time by using various patterns.

In the above-mentioned embodiment, the aspect in which only the light source emitting laser light is used has been described, but in addition to the light source emitting laser light, a light source emitting light other than laser light may also be used in combination. As such a light source, for example, a light emitting diode (LED) lamp can be cited. By using a light source that emits laser light and an LED lamp together, the illumination pattern can be more diversified.

As explained above, according to the present invention, for example, an indoor An animal repellent device that disturbs the animal to such an extent that the animal cannot stay indoors or invade outdoor farming fields.

(Fourth Embodiment)

In this embodiment, an animal avoidance method using the animal avoidance device of the present invention will be described.

Fig. 6 is a diagram illustrating an implementation of the indoor animal avoidance method of the present embodiment. The animal avoidance method of this embodiment is a method in which the animal avoidance device 10 is mounted on the ceiling S, and the light irradiation area SP1 of the laser light formed on the floor F is displaced by the animal avoidance device 10. Furthermore, FIG. 6 shows an example in which the animal avoidance device 10 is installed on the ceiling S, but the animal avoidance method of this embodiment can also be implemented by installing the animal avoidance device 10 on the wall surface W.

By changing the relative position of the light source 11 and the diffraction grating 12, the light irradiation area SP1 based on the light source 11 formed on the floor F or the wall surface W moves within a predetermined area (refer to FIG. 2(a) and FIG. 2 (b)), so that the animals in the room can be avoided.

FIG. 7 is a diagram illustrating an implementation aspect of an animal avoidance method in which the indoor arrangement 20 is irradiated with light. In the interior, especially in the kitchen of a restaurant that is a place where animals are repelled, stainless steel cooking tables, counters, and appliances are often used to facilitate cleaning and the like. By irradiating the stainless steel indoor arrangement 20 with the laser light L by the animal avoidance device and changing the position, the light irradiation area SP2 of the reflected laser light LR reflected from the indoor arrangement 20 is also shifted. According to this method, the laser light LR reflected from the surface of the indoor arrangement 20 also reaches the wall surface W or The ceiling S can simultaneously shift the irradiation area SP2 and the irradiation area SP1 of the laser light L. If the light irradiation area SP1 and the light irradiation area SP2 move on the surface of the indoor arrangement 20, the floor surface F, the wall surface W, or the ceiling S, the avoidance target animal will fall into a panic state. Moreover, if the light irradiation area SP1 and the light irradiation area SP2 are formed not only on the floor F but also on the wall surface W or the ceiling S, the avoidance target animal will recognize that the escape route is blocked, and it will be in a disordered state. Therefore, it is sometimes caught by an adhesive-type animal capture device that can usually be easily avoided.

In the case of indoor use, a window that can only be moved from indoor to outdoor may be provided on the wall surface W. In this case, during the operation period of the animal avoiding device 10B, the animal can escape from the window to the outdoors, without the need for troublesome capture of the animal. In this way, if the animal avoiding device 10, the animal avoiding device 10A, the animal avoiding device 10B, and the window that can only move from the indoor to the outdoor constitute the indoor animal exclusion device, the indoor animal can be efficiently excluded.

In the above-mentioned embodiment, the aspect of using the animal repelling device indoors is mainly described, but the animal repelling device can also be used outdoors.

The embodiments of the present invention have been described above, but the present invention is not limited to the examples. Those skilled in the art may appropriately add, delete, and modify the components of the above-mentioned embodiments, and the embodiments obtained by appropriately combining the features of the structural examples of the respective embodiments, as long as they have the gist of the present invention. It is included in the scope of the present invention.

10: Animal avoidance device

11: light source

12: Diffraction grating

13: Plate member

14: Rotating mechanism

15: body

16: install components

Ax: Optical axis

F: Ground

L: Laser light

S: Ceiling

SP1: Light irradiation area

WX, WZ: width

Claims (6)

An animal avoidance device, comprising: a light source for irradiating laser light; and a diffraction grating to change the traveling direction of the laser light emitted from the light source; by making the relative position of the diffraction grating relative to the light source Change, so that the light irradiation area of the laser light passing through the diffraction grating changes at the position of the irradiated object. The diffraction grating is provided on a plate-shaped member, and by rotating the plate-shaped member, the The diffraction grating corresponds to a change in the relative position of the light source, the plate-shaped member includes a first diffraction grating and a second diffraction grating in different regions, the first diffraction grating and the second diffraction grating By passing the laser light through the grating, the pattern of the light irradiation area formed on the surface of the irradiation target is different. The animal avoidance device according to claim 1, wherein the light source is multiple. The animal avoidance device according to claim 2, wherein the plurality of light sources include light sources that irradiate the laser light with different wavelengths. The animal avoidance device according to claim 2, wherein the plurality of light sources respectively include two light sources emitting the laser light with different wavelengths, and the two light sources emitting the laser light with the same wavelength are emitted from the two light sources emitting the laser light of the same wavelength. In a state where one of the laser light can pass through the first diffraction grating, the other can pass through the second diffraction grating. A method of animal avoidance, such as any one of claim 1 to 4 The animal avoidance device described in the item is installed on a ceiling or a wall, and the light irradiation area of the laser light formed on the surface of the irradiation target is displaced by the animal avoidance device. The animal avoidance method according to claim 5, wherein the laser light is irradiated on an indoor arrangement made of stainless steel by the animal avoidance device so that the surface of the irradiation target is reflected from the indoor arrangement The light irradiation area of the reflected laser light is shifted.

Images