JP5543903B2 - Pest control system - Google Patents

Description

  The present invention relates to a pest control system including an attracting light source for attracting insects and a capturing unit for capturing insects attracted by the attracting light source.

  Conventionally, this kind of pest control system has a reflector that reflects the attracting light emitted from the attracting light source toward the irradiated surface, and changes the direction of the reflecting plate relative to the attracting light source to change the light irradiation direction. What was made variable is known (for example, see Patent Documents 1 and 2).

Noto 3092394 JP-A-8-140549

  In the conventional pest control system as described above, it is possible to irradiate the attracting light over a wide range, but the light output of the attracting light source cannot be controlled according to the light distribution angle by the reflector, so that the light irradiation target is separated. As the illuminance there decreases. For this reason, the effect of attracting insects is reduced, and insects may not be captured efficiently. To increase the number of attracting light sources to be installed against such problems, the manufacturing cost increases, and when the light irradiation target is close to the attracting light source, the illuminance becomes too high and the environment around the system (for example, , Human body, plant).

  The present invention has been made to solve the above-described problems, and can provide a wide range of illuminance necessary for attracting insects while having a low-cost configuration using at least one light source. It aims at providing the pest control system which can implement | achieve the improvement of efficiency.

  The pest control system of the present invention is a pest control system comprising an attracting light source for attracting insects and a capturing unit for capturing the insect attracted by the attracting light source, and receives light irradiated from the attracting light source. A reflection plate that reflects toward the irradiation surface, a base on which the attraction light source and the reflection plate are attached, a light distribution angle adjustment unit that adjusts the attachment angle of the reflection plate with respect to the base and changes the light irradiation direction; An illuminance control unit that controls the illuminance of light by the attraction light source, the light distribution angle adjustment unit and the illuminance control unit operate in conjunction with each other so as to give a certain illuminance to the light irradiation target, and the capture The part is arranged in the reflector or in the vicinity thereof.

  In this pest control system, it is preferable that the pest control system further includes a timer unit for performing the irradiation operation by the attracting light source in an arbitrary time zone.

  In this pest control system, the reflecting plate is rotatably supported by a rotating shaft with respect to the base, and the light distribution angle adjusting unit rotates the reflecting plate around the rotating shaft. It is preferable to include a drive unit that controls the drive unit and a drive control unit that controls the drive unit.

  In this pest control system, at least two reflectors are provided, the reflecting surfaces of the reflectors are arranged outward and rotate in a pairing direction, and the attraction light source is provided on the reflectors. It is preferable that they are installed corresponding to each.

  In this pest control system, it is preferable that the reflected light from the reflecting plate has a total radiant energy in the 280 to 380 nm wavelength band larger than radiant energy in other wavelength ranges.

  In this pest control system, it is preferable that the reflected light from the reflecting plate has a total radiant energy in the 400 to 500 nm wavelength band that is larger than radiant energy in other wavelength ranges.

  In this pest control system, it is preferable that the reflected light from the reflecting plate has a total radiant energy in the wavelength band of 500 to 600 nm larger than radiant energy in other wavelength ranges.

  In this pest control system, it is preferable that the capturing part has translucency and is provided on a part or the entire surface of the reflecting plate to which the irradiation light of the attraction light source hits.

  In this pest control system, it is preferable that the attracting light source is attached so that a light irradiation surface thereof faces the reflector.

  According to the pest control system of the present invention, the direction of irradiation of the light emitted from the attracting light source can be changed by the reflector, and the light illuminance at the irradiation target can be kept constant. The illuminance necessary to be attracted to the capture unit can be obtained over a wide range. Therefore, sufficient illuminance can be ensured even when the light irradiation target is located away from the system, and insects can be reliably captured. In addition, since the illuminance in the vicinity of the system does not become excessively high, it is possible to prevent a plant or a human body from being adversely affected when the system is installed in a field or the like.

(A) is a front arrangement | positioning figure of the pest control system which concerns on one Embodiment of this invention, (b) is the plane arrangement | positioning figure. The perspective view of the system. A side sectional view of the system. The figure which shows an example of the on / off time chart of an attraction light source. The figure which shows the other example of the same lighting / light extinction time chart. (A) is a side sectional view of the reflector in the wide angle state with respect to the central axis of the base, (b) is a sectional side view of the reflector in a narrow angle with respect to the central axis of the base, (c) FIG. 4 is a side sectional view showing a state where insects are captured by the system. FIG. 6A is a plan view corresponding to FIG. 6A showing the light distribution state to the field by the system, and FIG. 6B is a plan view corresponding to FIG. 6B showing the light distribution state. . (A) is the time change graph of the horizontal distance from the instrument center position of the system to the irradiation region, (b) is the time change graph of the light output of the attracting light source, and (c) is the time change graph of the maximum illuminance in the irradiation region. The figure which shows the spectrum of the various light sources used for the system. The figure which shows the reflection spectrum of the various reflectors used for the system.

  A pest control system according to an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the pest control system 1 has an attracting light source 2 that emits light for attracting insects, and captures the attracted insects. Here, a plurality of pest control systems 1 are installed in an agricultural house 4 that covers the field 3 as a light attracting and capturing device. The pest control system 1 is suspended from, for example, a ceiling part of a house 4 by a hanging tool 5 and irradiates the field 3 with light from above. The number and installation location of the pest control system 1 are arbitrary. The pest control system 1 includes a timer unit 6 that performs an irradiation operation by the attracting light source 2 in an arbitrary time zone. The timer unit 6 is stored in a box provided at a position independent of the system 1 and is connected to each of the systems 1 by the power line 7. The timer unit 6 may be integrated with the system 1. The timer unit 6 is connected to a commercial power source and receives power supply for driving the attracting light source 2. Here, the insects to be controlled by the system 1 are agricultural pests that harm the plants 31a planted in the crop belt 31 of the field 3, and specifically, thrips, whiteflies, leafhoppers, It is a flying insect such as aphids.

  As shown in FIGS. 2 and 3, the pest control system 1 has an attracting light source 2, an adhesive sheet 8 that is a capturing unit for capturing insects, and light irradiated from the attracting light source 2 toward the irradiated surface. Two reflecting plates 9 and 9 and a base 10 to which the attracting light source 2 and the reflecting plates 9 and 9 are attached. In the following description, the x direction shown in the figure is the left-right direction of the system 1, and the y direction is the front-rear direction of the system 1. The base 10 has a substantially box-shaped outline having an attachment surface of the attracting light source 2 on the lower surface, and support portions 11 for supporting the reflecting plates 9 and 9 are vertically suspended on the left and right sides thereof. Has been. The reflectors 9 and 9 are provided on both sides in the front-rear direction of the base 10, and the lower sides in the respective height directions are hinge portions mounted with the rotation shaft 12, and the rotation shaft 12 is the both support portions. 11 is held from both sides so as to be rotatable with respect to the base 10.

  The pressure-sensitive adhesive sheet 8 has translucency, and is attached to the entire surface (reflecting surfaces 9a, 9a) of the reflecting plates 9, 9 to which the attracting light from the attracting light source 2 hits by the fixing tool 15, and the reflecting plates 9, 9 It rotates with. The pressure-sensitive adhesive sheet 8 is not necessarily provided on the entire surface of the reflection plates 9 and 9, and may be provided on at least a part of the reflection plates 9 and 9. The pressure-sensitive adhesive sheet 8 is not limited to the above, and may be one in which a pressure-sensitive adhesive layer is formed on a yellow or blue colored sheet preferred by insects. Moreover, you may apply | coat an adhesive to the reflecting plates 9 and 9 and use it as a capture part.

  The pest control system 1 also adjusts the angle of attachment of the reflectors 9 and 9 to the base 10 to change the light irradiation direction, and the illuminance control for controlling the illuminance of the light by the attracting light source 2. Part 14. The light distribution angle adjusting unit 13 and the illuminance control unit 14 operate so as to give a certain illuminance to the light irradiation target in conjunction with each other.

  The attracting light source 2 is constituted by a light source having a dominant wavelength in a wavelength band of 280 to 380 nm (ultraviolet region), for example. The attraction light source 2 is not limited to the above, and is a light source having a dominant wavelength in the wavelength band 400 to 500 nm (blue), a light source having a dominant wavelength in the wavelength band 500 to 600 nm (yellow), or a white light source including these wavelength components. It does not matter. In the case of using a white light source, for example, a combination of a blue light source and a yellow light source can be used. Further, when irradiating blue light or yellow light, a white light source may be provided in a variable filter that adjusts the spectral characteristics of the irradiated light, and light in a specific wavelength band may be extracted. The attracting light source 2 is installed corresponding to each of the reflecting plates 9 and 9, and here, a plurality of light bulb-type lamps arranged in a line are attached to the front and rear of the reflecting plates 9 and 9. ing. The attraction light source 2 is not limited to a configuration using a light bulb type lamp, and for example, it is sufficient that two straight tube lamps are arranged so as to face the reflecting plates 9 and 9. Here, the lower surface of the base 10 is inclined toward the inner side of the base 10 so that the light irradiation surface of the attracting light source 2 faces the reflectors 9 and 9. Examples of the lamp type used for the attracting light source 2 include fluorescent lamps, LEDs, and HID lamps.

  The reflecting plates 9 and 9 are disposed so that the reflecting surfaces 9a and 9a are outward and turn in a pairing direction. The reflectors 9 and 9 are formed so as to reflect the irradiation light of the attracting light source 2 with high efficiency, and are made of, for example, aluminum that has been subjected to alumite treatment, vapor deposition plating treatment, polishing processing, or the like. When a light source having a main wavelength of 280 to 380 nm is used as the attracting light source 2, the sum of radiant energy in the 280 to 380 nm wavelength band of reflected light from the reflectors 9 and 9 is larger than that of other wavelength ranges. The nocturnal pests can be effectively attracted to the reflectors 9 and 9. When a light source having a main wavelength of 400 to 500 nm is used as the attracting light source 2, the reflected light from the reflectors 9 and 9 has a total radiant energy in the 400 to 500 nm wavelength band larger than that in other wavelength ranges. Thus, it is possible to attract diurnal pests together with nocturnal pests. When a light source having a main wavelength of 500 to 600 nm is used as the attraction light source 2, the reflected light from the reflectors 9 and 9 has a larger sum of radiant energy in the 500 to 600 nm wavelength band than that in other wavelength ranges. It becomes possible to attract diurnal pests effectively.

  The light distribution angle adjustment unit 13 includes a drive unit 16 that rotates the reflecting plates 9 and 9 around the rotation axis 12 and a drive control unit 17 that controls the drive unit 16. The drive unit 16 includes a wire 18 connected to the upper ends of the reflecting plates 9 and 9 and a motor 19 for winding the wire 18. With such a configuration, when the motor 19 rotates to wind or return the wire 18, each of the reflecting plates 9, 9 swings in the opposite direction around the rotation shaft 12 to reflect the reflecting plates 9, 9. The direction of the light source 2 with respect to the attracting light source 2 changes, and the light distribution angle of the reflected light from the reflectors 9 and 9 changes. The drive control unit 17 continuously changes the angular direction of the reflectors 9 and 9 by repeatedly performing forward rotation and reverse rotation of the motor 19 at predetermined time intervals. The drive control unit 17 is stored together with the illuminance control unit 14 in a box provided inside the base 10.

  The illuminance control unit 14 performs illuminance control in conjunction with the operation of the light distribution angle adjustment unit 13. Specifically, when the light distribution angle is changed by the light distribution angle adjustment unit 13, The light output of the attracting light source 2 is adjusted so that the illuminance is kept constant at a predetermined value. The light output adjustment of the attracting light source 2 may be performed, for example, by measuring the illuminance of the irradiated surface with a sensor and based on the measured value, or from the attracting light source 2 according to the light distribution angle. The distance to the irradiation surface may be calculated in advance and performed based on this distance data. The illuminance control unit 14 is connected to the timer unit 6 (FIG. 1) and performs the above control during the irradiation operation of the attracting light source 2.

  For example, the timer unit 6 is configured to be able to set / store the lighting start time and lighting end time of the attracting light source 2 for each day. The time zone set in the timer unit 6 (the time zone in which the attracting light source 2 is operated) is preferably a time zone in which natural light is reduced. This is because natural light includes an attractant wavelength component, and during daytime when there is a lot of natural light, the natural light incident in the system 1 is reflected by the reflectors 9 and 9 and the reflected light is reflected around the system 1 (field 3 This is because it is possible to attract insects without turning on the attracting light source 2. As a specific set time for the timer unit 6, for example, as shown in FIG. 4, the lighting start time is set to one hour before the sunset time (18:00) (17:00), and the light source is induced. The lighting end time of No. 2 may be set one hour after the sunrise time (6:00) (7:00). Further, as shown in FIG. 5, the lighting start time may be set to 24:00, and the lighting end time may be set to one hour after the sunrise time (6:00) (7:00). In this manner, when the light is irradiated from the attracting light source 2 during a time period when the natural light is not irradiated on the field 3, it is possible to capture pests throughout the day while suppressing wasteful power consumption.

  The operation of the pest control system 1 configured as described above is such that the illuminance of the irradiated surface is controlled according to the light distribution angle by the light distribution angle adjustment unit 13 and the illuminance control unit 14 with reference to FIGS. 6 and 7. explain. Here, it is assumed that the lighting start time set in the timer unit 6 is reached and the irradiation operation by the attracting light source 2 is performed. As shown in FIG. 6A, when the inclination θ with respect to the base center axis M of the reflectors 9 and 9 of the system 1 is large, the irradiation light of the attracting light source 2 is transmitted through the translucent adhesive sheet 8 and reflected. Since the light is reflected at a low angle by the plates 9, 9, the light distribution angle of the reflected light is downward. Therefore, as shown in FIG. 7A, the irradiation area A of the light to the field 3 is close to the system 1, that is, the horizontal distance C between the instrument center of the system 1 and the irradiation area center is small. . At this time, the light output of the attracting light source 2 is adjusted by the illuminance control unit 14 so that the illuminance of the irradiation area A becomes a predetermined value.

  Then, as the reflectors 9 and 9 are rotated by the light distribution angle adjusting unit 13 and the inclination θ of the reflectors 9 and 9 with respect to the base center axis M decreases as shown in FIG. The irradiation light 2 is reflected at a high angle by the reflectors 9 and 9, and the light distribution angle of the reflected light approaches the horizontal direction. Therefore, as shown in FIG. 7 (b), the irradiation area of the light to the field 3 is located away from the system 1, that is, the horizontal distance C between the instrument center of the system 1 and the irradiation area center is increased. On the other hand, since the light output of the attracting light source 2 increases as the inclination θ decreases, the illuminance in the irradiation area B becomes equal to the illuminance in the irradiation area A in FIG. From this state, when the inclination θ of the reflectors 9 and 9 with respect to the base center axis M increases, the light output of the attracting light source 2 gradually decreases. Such light distribution angle control and illuminance control are repeated. Then, as shown in FIG. 6C, when an insect is attracted to the adhesive sheet 8 by the attracting light from the reflectors 9, 9 is captured by the adhesive sheet 8.

  Next, a horizontal distance C between the instrument center of the system 1 and the irradiation area center, the light output L of the attracting light source 2, and the time change graph of the illuminance in the irradiation area are shown in FIG. Here, it is assumed that the lighting start time of the attracting light source 2 is set to 17:00 and the lighting end time of the attracting light source 2 is set to 7:00 (same as FIG. 4). As shown in FIG. 8A, the horizontal distance C includes a minimum value Cmin (a state where the light irradiation area is closest to the system 1) and a maximum value Cmax (the light irradiation area is the system 1) when the attracting light source 2 is turned on. The change is continuously repeated between the most distant states. It is desirable that the temporal change degree of the horizontal distance C (moving speed of the irradiation region) is set to about 10 cm to 50 cm per minute. As shown in FIG. 8B, the light output L of the attracting light source decreases as the horizontal distance C increases, and increases as the horizontal distance decreases. Therefore, as shown in FIG. The maximum illuminance at is kept constant. It is desirable that the maximum illuminance in the irradiation region is made constant within a range of 10 to 100 lx as the maximum surface illuminance.

  As described above, according to the pest control system 1 according to the present embodiment, the light irradiated from the attracting light source 2 can be changed in the irradiation direction by the reflectors 9 and 9 and the light illuminance in the irradiation target can be kept constant. Even if a plurality of attracting light sources are not provided, the illuminance necessary for attracting insects to the adhesive sheet 8 can be obtained over a wide range. Therefore, even if the light irradiation target is at a position away from the system 1, sufficient illuminance can be ensured, and insects can be reliably captured. Moreover, since the illuminance in the vicinity of the system 1 does not become too high, when the system 1 is installed in a farm field or the like, it can be prevented that the plant or the human body is adversely affected. Further, since the irradiation light of the attracting light source 2 can be distributed in a wide range outward by the two reflectors 9 and 9, insects can be attracted over a wider range, and the insect trapping effect is enhanced.

  Here, in the present system 1, the reflected light from the reflectors 9, 9 has a large sum of radiant energy in a specific wavelength band with high enticing property, and obtains the spectral characteristics of such reflected light. In this case, patterns 1 to 9 shown in Table 1 below may be used as a combination of the spectrum of the attracting light source 2 and the reflection spectrum of the reflectors 9 and 9.

  In patterns 1 to 3, the spectral characteristics of the reflected light are shown as examples of combinations for making the total radiant energy in the 280 to 380 nm wavelength band larger than the radiant energy in other wavelength ranges. The effect of attracting nocturnal pests increases. Patterns 4 to 6 show examples of combinations in which the spectral characteristics of the reflected light are set so that the total radiant energy in the 400 to 500 nm wavelength band is larger than the radiant energy in other wavelength ranges. In addition, the attracting effect against nocturnal pests and diurnal pests is enhanced. Patterns 7 to 9 show examples of combinations in which the spectral characteristics of the reflected light are set so that the total radiant energy in the wavelength band of 500 to 600 nm is larger than the radiant energy in other wavelength ranges. , The attracting effect against diurnal pests is increased. For reference, examples of spectral spectra of various light sources shown in patterns 1 to 9 are shown in FIG. 9, and examples of reflection spectra of the reflectors 9 and 9 are shown in FIG.

  In addition, this invention is not restricted to the structure of the said embodiment, A various deformation | transformation is possible in the range which does not change the meaning of invention. For example, the capture unit is not limited to an adhesive type, and may be configured by, for example, a blitz grid that kills insects by electric shock, or a suction device that sucks insects by airflow. It may be arranged in the vicinity of.

DESCRIPTION OF SYMBOLS 1 Pest control system 2 Attracting light source 6 Timer part 8 Adhesive sheet (capture part)
DESCRIPTION OF SYMBOLS 9 Reflector 9a Reflecting surface 10 Base 13 Light distribution angle adjustment part 14 Illuminance control part 16 Drive part 17 Drive control part

Claims (9)

In a pest control system comprising an attracting light source for attracting insects and a capture unit for capturing the insects attracted by the attracting light source,
A reflector that reflects the light emitted from the attraction light source toward the irradiated surface;
A base to which the attraction light source and the reflector are attached;
A light distribution angle adjustment unit that adjusts the angle of attachment of the reflector to the base and changes the direction of light irradiation; and
An illuminance control unit for controlling the illuminance of light by the attraction light source,
The light distribution angle adjustment unit and the illuminance control unit operate in conjunction with each other so as to give a certain illuminance to the light irradiation target,
The pest control system, wherein the capture unit is disposed at or near the reflector.   The pest control system according to claim 1, further comprising a timer unit that performs an irradiation operation by the attraction light source in an arbitrary time zone. The reflecting plate is rotatably supported by a rotating shaft with respect to the base,
3. The light distribution angle adjusting unit includes a drive unit that rotates the reflection plate around the rotation axis, and a drive control unit that controls the drive unit. The described pest control system.   At least two reflectors are provided, and the reflecting surfaces are arranged so that the reflecting surfaces face outward and rotate in pairs with each other, and the attraction light source is installed corresponding to each of these reflectors. The pest control system according to claim 3, wherein the pest control system is provided.   5. The insect pest according to claim 1, wherein the reflected light from the reflector has a total radiant energy in the 280 to 380 nm wavelength band that is greater than radiant energy in other wavelength ranges. Control system.   5. The pest according to claim 1, wherein the reflected light from the reflecting plate has a total radiant energy in a wavelength band of 400 to 500 nm larger than radiant energy in other wavelength ranges. Control system.   5. The pest according to claim 1, wherein the reflected light from the reflecting plate has a total radiant energy in a wavelength band of 500 to 600 nm larger than radiant energy in other wavelength ranges. Control system.   The said capture | acquisition part has translucency, It is provided in a part or whole surface of the reflecting plate which the irradiation light of the said attracting light source strikes, The any one of Claim 1 thru | or 7 characterized by the above-mentioned. The pest control system according to item.   The pest control system according to any one of claims 1 to 8, wherein the attracting light source is attached so that a light irradiation surface thereof faces the reflection plate.

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