Laser insect killer and insect killer method

Abstract

The embodiments of the present invention provide a laser insect killer and an insect killer method. The laser insect killer includes an attracting laser emitting unit, which is used to emit an attracting laser beam to attract pests, so that the pests actively gather in the killing area formed around the attracting laser beam; and a killing laser emitting unit, which is used to emit a killing laser beam to the killing area to kill the pests. The present invention effectively solves the technical problems of finding pests and aiming at pests with lasers, and realizes fully automatic laser insect killer; and has the advantages of a large insect killer range, etc., which greatly improves the insect killer effect and efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of pest killing and relates to a laser pest killing device and a pest killing method. Background Art

[0002] my country is a major agricultural country. Insect pests have caused serious damage to agriculture, forestry, and environmental protection, resulting in great economic losses.

[0003] Pests can be divided into 14 categories, including moths, spur moths, tussock moths, noctuid moths, geometrids, butterflies, sawflies, beetles, cabbage moths, locusts, underground pests, hawk moths, leaf moths and leaf rollers. Currently, the commonly used methods for pest control include manual extermination, trapping and killing of adults, biological control and pesticide control. Some of these methods are time-consuming and labor-intensive, with poor control effects, while others may cause serious pollution to protected targets such as crops and fruit forests and the environment, and even endanger human health.

[0004] In fact, 11 types of pests, including moths, lizard moths, tussock moths, noctuid moths, geometrids, butterflies, beetles, cabbage moths, underground pests, hawk moths, leaf moths and leaf rollers, are active at night and have strong phototropism, making them particularly suitable for killing with lasers. There are also some patents for using lasers to kill insects in China, such as laser insect-killing guns, laser insect-killing vehicles, laser insect-killing machines, laser insect-killing devices, etc. However, these patented laser insect-killing technologies have the following problems:

[0005] (1) Pests are detected and targeted manually, which is suitable for daytime work, while pests are mostly active at night; (2) Due to the obstruction of protected targets such as crops and fruit trees, the actual operation of detecting, targeting and killing pests is very difficult and the killing effect is poor; (3) The laser action range of the laser pest control device is small, and the advantage of laser long-distance transmission is not brought into play. Therefore, these patented laser pest control technologies seriously affect the killing effect and efficiency. Summary of the invention

[0006] The embodiments of the present invention provide a laser insect killer and a laser insect killer method, which can effectively improve the insect killer effect and efficiency.

[0007] A laser insect killer comprises:

[0008] An attracting laser emitting unit is used to emit an attracting laser beam to attract pests, so that the pests actively gather in a killing area formed around the attracting laser beam;

[0009] The killing laser emitting unit is used to emit a killing laser beam to the killing area to kill the pests.

[0010] The luring laser emitting unit comprises: at least one first laser 1, a first beam expansion and collimation optical device 3, a first temperature control and heat dissipation device 13, and a laser color control device 9, which are respectively arranged in a first housing 15;

[0011] The laser color control device 9 is connected to the first laser 1 and is used to control the first laser 1 so that the first laser 1 emits an attracting laser of a color sensitive to the phototropism of insect pests;

[0012] The first beam expansion and collimation optical device 3 is arranged behind the emission window of the first laser 1, and is used to expand and collimate the laser beam emitted by the first laser 1, so as to form an effective luring laser beam with a large spot diameter; the luring laser beam is emitted through the first optical window 8 on the first housing 15;

[0013] The first temperature control and heat dissipation device 13 is closely attached to the housing of the first laser 1 and is used to control the operating temperature and heat dissipation of the first laser 1 .

[0014] The killing laser emitting unit comprises: a second laser 2, a second temperature control and heat dissipation device 14, a second collimating optical device 4, a first reflector 5, a second reflector 6, and a first rotating device 7, which are respectively arranged in the first housing 15;

[0015] The second laser 2 is used to emit infrared laser, visible light laser or ultraviolet laser for killing pests;

[0016] The second collimating optical device 4 is arranged behind the emission window of the second laser 2, and is used to collimate the laser beam emitted by the second laser 2 to form a killing laser beam;

[0017] The first reflector 5 and the second reflector 6 are sequentially placed behind the second collimating optical device 4 and arranged on the first rotating device 7, and are used for the reflection transmission of the killing laser beam, so that the reflected killing laser beam is emitted through the first optical window 8 on the first housing 15;

[0018] The first rotating device 7 is used to make a circular motion with the direction parallel to the incident light beam of the first reflector 5 as the rotation axis, so that the killing laser beam forms a rotation motion around the attracting laser beam; thereby making the killing laser beam make a circular motion to kill the pests in the killing area formed around the attracting laser beam;

[0019] The second temperature control and heat dissipation device 14 is closely attached to the housing of the second laser 2 and is used to control the operating temperature and heat dissipation of the second laser 2 .

[0020] The first laser 1 is a single wavelength laser to which the pests are sensitive to phototaxis, or a red, green and blue three-primary color laser group;

[0021] When the first laser 1 is a single wavelength laser to which the pests are sensitive to light, the laser color control device 9 controls the output power of the laser;

[0022] When the first laser 1 is a red, green and blue three-primary color laser group, the laser color control device 9 controls the output power and output power ratio of the red light, green light and blue light emitted by the red, green and blue three-primary color laser group.

[0023] The attracting laser emitting unit and the killing laser emitting unit are both placed on the second rotating device 11, and the second rotating device 11 is placed on the laser beam scanning angle adjusting device 17;

[0024] The second rotating device 11 drives the attracting laser emitting unit and the killing laser emitting unit to make circular motion;

[0025] The laser beam scanning angle adjustment device 17 rotates to control the circular motion planes of the attracting laser beam and the killing laser beam.

[0026] The laser beam scanning angle adjustment device 17 is an angle adjustment mechanical device driven by a stepping motor or a continuous rotation motor, or a manually operated angle adjustment mechanical device; or

[0027] The laser beam scanning angle adjustment device 17 is adjusted to a fixed angle, or is rotated in steps, or is rotated continuously, so that the scanning planes of the luring laser beam emitted by the luring laser emitting unit and the killing laser beam emitted by the killing laser emitting unit are horizontal to the ground plane, or are scanned toward the ground or toward the air at an angle to the ground plane.

[0028] The laser insect killer further comprises:

[0029] Ambient light sensing device 10 and laser insect killer control device 12;

[0030] The ambient light sensing device 10 is connected to the laser insect killer control device 12 and is used to monitor the light environment in which the insects are active and send a monitoring signal to the laser insect killer control device 12;

[0031] The laser insect killer control device 12 is used to start the operation of various components of the laser insect killer when the monitoring signal is a lighting environment where pests are active; and to stop the operation of various components of the laser insect killer when the monitoring signal is a lighting environment where pests stop being active.

[0032] The laser insect killer control device 12 is also connected to the first laser 1 and the second laser 2 respectively, and is used to make the time interval between the emission time of the killing laser beam and the luring laser beam, and control the time interval.

[0033] A laser insecticide method, comprising:

[0034] Controlling the attracting laser emitting unit in the laser insect killer to emit an attracting laser beam, so that the pests actively gather in the killing area formed around the attracting laser beam;

[0035] The killing laser emitting unit in the laser insect killer is controlled to emit a killing laser beam to the killing area to kill the insects.

[0036] It can be seen from the technical solutions provided by the above-mentioned embodiments of the present invention that in the embodiments of the present invention, the laser insect killer emits an attracting laser beam to attract pests with positive phototaxis to the killing area formed around the attracting laser beam; then the laser insect killer emits a killing laser beam to kill the pests in the killing area formed around the attracting laser beam, which effectively solves the technical problems of finding and aiming at pests, realizes fully automatic laser insect killing, and greatly improves the insect killing effect and efficiency.

[0037] Additional aspects and advantages of the present invention will be given in part in the following description, which will become obvious from the following description, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. It is obvious that the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 It is a structural schematic diagram of the laser insect killer of the present invention;

[0040] Figure 2 It is a schematic diagram of the deformation structure of the laser insect killer of the present invention;

[0041] Figure 3 It is a schematic diagram of the process of the laser insecticide method of the present invention;

[0042] Markings in the figure: first laser 1, second laser 2, first beam expansion and collimation optical device 3, second collimation optical device 4, first reflector 5, second reflector 6, first rotating device 7, first optical window 8, laser color control device 9, ambient light sensing device 10, second rotating device 11, laser insect killer control device 12, first temperature control and heat dissipation device 13, second temperature control and heat dissipation device 14, first shell 15, second shell 16, laser beam scanning angle adjustment device 17, laser insect killer driving power supply 18, third reflector 19, fourth reflector 20, fifth reflector 21, sixth reflector 22, second optical window 23, third optical window 24, third shell 25. DETAILED DESCRIPTION

[0043] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0044] To facilitate understanding of the embodiments of the present invention, several specific embodiments will be further explained below with reference to the accompanying drawings, and each embodiment does not constitute a limitation on the embodiments of the present invention.

[0045] Figure 1 It is a structural schematic diagram of the laser insect killer of the present invention; Figure 2 The figure is a schematic diagram of the deformation structure of the laser insect killer described in the present invention; it is described in combination with the figures below.

[0046] like Figure 1 As shown, a laser insect killer comprises:

[0047] An attracting laser emitting unit is used to emit an attracting laser beam to attract pests, so that the pests actively gather in a killing area formed around the attracting laser beam;

[0048] The killing laser emitting unit is used to emit a killing laser beam to kill the pests in the killing area.

[0049] The luring laser emitting unit comprises: at least one first laser 1, a first beam expansion and collimation optical device 3, a first temperature control and heat dissipation device 13, and a laser color control device 9, which are respectively arranged in a first housing 15;

[0050] The laser color control device 9 is connected to the first laser 1 and is used to control the first laser 1 so that the first laser 1 emits an attracting laser of a color sensitive to the phototropism of insect pests;

[0051] The first beam expansion and collimation optical device 3 is arranged behind the emission window of the first laser 1, and is used to expand and collimate the laser beam emitted by the first laser 1, so as to form an effective luring laser beam; the luring laser beam is emitted through the first optical window 8 on the first housing 15;

[0052] The first temperature control and heat dissipation device 13 is closely attached to the housing of the first laser 1 and is used to control the operating temperature and heat dissipation of the first laser 1 .

[0053] The killing laser emitting unit comprises: a second laser 2, a second collimating optical device 4, a first reflector 5, a second reflector 6, a first rotating device 7 and a second temperature control and heat dissipation device 14, which are respectively arranged in the first housing 15;

[0054] The second laser 2 is used to emit infrared laser or visible light laser or ultraviolet laser for killing insects;

[0055] The second collimating optical device 4 is arranged behind the emission window of the second laser 2, and is used to collimate the laser beam emitted by the second laser 2 to form a killing laser beam;

[0056] The first reflector 5 and the second reflector 6 are sequentially placed behind the second collimating optical device 4 and arranged on the first rotating device 7, and are used for reflecting and transmitting the killing laser beam, and emitting the reflected killing laser beam through the first optical window 8 on the first housing 15;

[0057] The first rotating device 7 is used to make a circular motion with the direction parallel to the incident light beam of the first reflector 5 as the rotation axis, so that the killing laser beam forms a rotation motion around the attracting laser beam; thereby making the killing laser beam make a circular motion to kill the pests around the attracting beam;

[0058] The second temperature control and heat dissipation device 14 is closely attached to the housing of the second laser 2 and is used to control the operating temperature and heat dissipation of the second laser 2 .

[0059] The first laser 1 is a single wavelength laser to which the pests are sensitive to phototaxis, or a red, green and blue three-primary color laser group;

[0060] When the first laser 1 is a single wavelength laser to which the pests are sensitive to light, the laser color control device 9 controls the output power of the laser;

[0061] When the first laser 1 is a red, green and blue three-primary color laser group, the laser color control device 9 controls the output power and output power ratio of the red light, green light and blue light emitted by the red, green and blue three-primary color laser group.

[0062] The attracting laser emitting unit and the killing laser emitting unit are respectively arranged on the second rotating device 11, and the second rotating device 11 is arranged on the laser beam scanning angle adjusting device 17;

[0063] The second rotating device 11 drives the attracting laser emitting unit and the killing laser emitting unit to make circular motion;

[0064] The laser beam scanning angle adjustment device 17 rotates to control the circular motion planes of the attracting laser beam and the killing laser beam.

[0065] The laser beam scanning angle adjustment device 17 is an angle adjustment mechanical device driven by a stepping motor or a continuous rotation motor, or a manually operated angle adjustment mechanical device; or

[0066] The laser beam scanning angle adjustment device 17 is adjusted to a fixed angle, or is rotated in steps, or is rotated continuously, so that the scanning planes of the luring laser beam emitted by the luring laser emitting unit and the killing laser beam emitted by the killing laser emitting unit are horizontal to the ground plane, or are scanned toward the ground or toward the air at an angle to the ground plane.

[0067] The laser insect killer further comprises:

[0068] Ambient light sensing device 10 and laser insect killer control device 12;

[0069] The ambient light sensing device 10 is connected to the laser insect killer control device 12 and is used to monitor the light environment in which the insects are active and send a monitoring signal to the laser insect killer control device 12;

[0070] The laser insect killer control device 12 is used to start the operation of various components of the laser insect killer when the monitoring signal is a lighting environment where pests are active; and to stop the operation of various components of the laser insect killer when the monitoring signal is a lighting environment where pests stop being active.

[0071] The laser insect killer control device 12 is also connected to the first laser 1 and the second laser 2 respectively, and is used to make the time interval between the emission time of the killing laser beam and the luring laser beam, and control the time interval.

[0072] The application scenarios of the present invention are described below.

[0073] Laser insect killer, including:

[0074] A first laser 1, a first temperature control and heat dissipation device 13, a first beam expansion and collimation optical device 3, a second laser 2, a second temperature control and heat dissipation device 14, a second collimation optical device 4, a first reflector 5, a second reflector 6, a first rotating device 7, a first optical window 8, a laser color control device 9, an ambient light sensing device 10, a second rotating device 11, a laser insect killer control device 12, a housing 15, a housing 16, a laser beam scanning angle adjustment device 17, and a laser insect killer driving power supply 18.

[0075] Among them, the first laser 1, the first temperature control and heat dissipation device 13, and the first beam expansion collimation optical device 3 constitute an luring laser emission unit; the second laser 2, the second temperature control and heat dissipation device 14, the second collimation optical device 4, the first reflector 5, the second reflector 6, and the first rotating device 7 constitute a killing laser emission unit, wherein the first reflector 5 and the second reflector 6 are placed on the first rotating device 7, and driven by the first rotating device 7, the killing laser beam moves around the luring laser beam; the luring laser emission unit and the killing laser emission unit constitute an integral laser emission unit, which is placed in a first housing 15 with a first optical window 8. This integral laser emission unit is placed on the second rotating device 11. It includes 2 or more lasers;

[0076] The transmitting unit transmits an attracting laser beam to attract the pests with positive phototaxis to actively gather around the attracting laser beam or scare away the pests with negative phototaxis;

[0077] The transmitting unit emits a killing laser beam to kill the pests gathered in the killing area formed around the attracting laser beam;

[0078] The attracting laser beam and the killing laser beam emitted by the laser insect killer move together in a circular motion above the protected targets such as crops and fruit trees, parallel to the ground plane or at an angle to the ground plane;

[0079] The killing laser beam emitted by the laser insect killer moves in a circle around the attracting laser beam.

[0080] Figure 2In the invention, the first laser 1, the first temperature control and heat dissipation device 13, the first beam expansion and collimation optical device 3, the fifth reflector 21, the second laser 2, the second temperature control and heat dissipation device 14, the second collimation optical device 4, and the third reflector 19 are placed in the first housing 15 on which the first optical window 8 is installed, forming a laser unit; the sixth reflector 22 for reflecting the luring laser beam, the fourth reflector 20 for reflecting the killing laser beam, the first reflector 5, the second reflector 6, and the first rotating device 7 are all placed in the third housing 25, and the second optical window 23 and the third optical window 24 are installed on the third housing 25, and they together form a laser transmission unit; wherein the first reflector 5 and the second reflector 6 rotate on the first rotating device 7, so that the killing laser beam moves in a circle around the luring laser beam. This laser transmission unit is placed on the second rotating device 11, so that the luring laser beam and the killing laser beam rotate together. The second rotating device is installed on the first housing 15, and the first housing 15 is installed on the laser beam scanning angle adjustment device 17.

[0081] In the present laser insect killer, the laser attracting component in the laser unit includes: a first laser 1, a first temperature control and heat dissipation device 13, a first beam expansion and collimation optical device 3, and a fifth reflector 21; wherein the first temperature control and heat dissipation device 13 is installed on the housing of the first laser 1 to control the temperature and dissipate heat of the first laser 1; the first laser 1 is a single wavelength laser sensitive to the phototaxis of insect pests or a red, green and blue three-primary color laser group modulated to produce a laser with a color sensitive to the phototaxis of insect pests; the first beam expansion and collimation optical device 3 is placed behind the emission window of the first laser 1 to expand and collimate the laser beam emitted by the first laser to form a large-diameter attracting laser beam; the fifth reflector 21 is placed behind the first beam expansion and collimation optical device 3, and the attracting laser beam is reflected by the fifth reflector 21 and then enters the laser transmission unit through the first optical window 8 and the second optical window 23. The killing laser component in the laser unit includes: a second laser 2, a second temperature control and heat dissipation device 14, and a second collimating optical device 4; wherein the second temperature control and heat dissipation device 14 is installed on the housing of the second laser 2 to control the temperature and dissipate the heat of the second laser 2; the second laser 2 emits an infrared laser or a visible light laser or an ultraviolet laser with a good pest killing effect; the second collimating optical device 4 is arranged behind the emission window of the second laser 2 to collimate the laser beam emitted by the second laser 2 to form a killing laser beam; the third reflector 19 is placed behind the second collimating optical device 4, and the killing laser beam is reflected by the third reflector 19 and then enters the laser transmission unit through the first optical window 8 and the second optical window 23.

[0082] The luring laser component in the laser transmission unit includes: a sixth reflector 22, which is placed behind the second optical window 23 on the optical path through which the luring laser beam passes, and ensures that the reflected luring laser beam is located between the first reflector 5 and the second reflector 6, and is parallel to the killing laser beam reflected by the second reflector 6. After being reflected by the sixth reflector 22, the luring laser beam is vertically incident on the third optical window 24 and is emitted through the third optical window 24. The attracting laser component in the laser transmission unit includes: a fourth reflector 20, a first reflector 5, a second reflector 6, and a first rotating device 7. The fourth reflector 20 is placed on the optical path through which the killing laser beam passes behind the second optical window 23, and ensures that the reflected killing laser beam is parallel to the attracting laser beam reflected by the sixth reflector 22; the first reflector 5 is placed behind the fourth reflector 20 and on the optical path where the killing laser beam after being reflected by the fourth reflector 20 is located; the second reflector 6 is placed behind the first reflector 5 and on the optical path where the killing laser beam after being reflected by the first reflector 5 is located; the killing laser beam entering the laser transmission unit from the laser unit is reflected by the fourth reflector 20, the first reflector 5, and the second reflector 6 successively, and then vertically incident on the third optical window 24 and emitted; and the first reflector 5 and the second reflector 6 are placed on the first rotating device 7, and driven by the first rotating device 7, the killing laser beam moves in a circle around the attracting laser beam. The laser transmission unit is provided with a second rotating device 11. Driven by the second rotating device 11, the induced laser beam and the killing laser beam move in a circular motion together, thereby realizing effective scanning of the killing area.

[0083] The laser color regulating device 9, the ambient light sensing device 10, and the laser insect killer control device 12 are placed in the second housing 16, and they constitute a control unit of the laser insect killer.

[0084] The laser color control device 9 controls the power ratio of the red light, green light and blue light emitted by the red, green and blue three-primary color lasers to adjust the laser light of the color sensitive to the phototaxis of the pests.

[0085] When the ambient light sensing device 10 detects the lighting environment where pests are active, the laser insect killer is started through the laser insect killer control device 12, and when the ambient light sensing device 10 detects the lighting environment where pests are inactive, the laser insect killer is stopped through the laser insect killer control device.

[0086] The laser insect killer control device has the function of controlling the first laser 1 and the first temperature control and heat dissipation device 13, the second laser 2 and the second temperature control and heat dissipation device 14, the first rotating device 7, the second rotating device 11, the laser beam scanning angle adjustment device 17 and the ambient light sensing device 10.

[0087] The first rotating device 7 is composed of a motor and a metal plate, wherein the metal plate where the first reflector 5 is located is the center of mass, a hole is punched in the direction parallel to the incident light beam of the first reflector 5, the metal plate is installed on the motor bearing, and a metal block of appropriate mass is installed at the metal plate in the direction opposite to the second reflector 6 to ensure dynamic balance; with the direction parallel to the incident light beam of the first reflector 5 as the rotation axis, the killing laser beam is made to perform continuous circular motion to kill the pests around the luring beam.

[0088] The second rotating device 11 is driven by a stepping motor or a continuous motion motor to perform a 360° circular motion or a reciprocating circular motion of not less than 180°.

[0089] The laser beam scanning angle adjustment device 17 is an angle adjustment mechanical device driven by a stepping motor or a continuous rotation motor, or a manually operated angle adjustment mechanical device.

[0090] The laser beam scanning angle adjustment device 17 can be adjusted to a fixed angle, or rotated in steps, or rotated continuously, to ensure that the laser beam scanning plane is horizontal to the ground plane, or scans toward the ground or the air at an angle to the ground plane.

[0091] The laser insect killer driving power supply 18 is a commercially available product, with an input of 220V AC power and an output of DC power, and is equipped with solar cells for emergency use; or it can be an input solar cell to solve the problem of lack of 220V AC power supply at the laser insect killer site.

[0092] The plane of the circular motion of the attracting laser beam and the killing laser beam emitted by the laser insect killer in the air can be parallel to the ground plane, or it can have an inclination angle with the ground plane, and scan in a circular motion from the ground plane to the sky or on the ground; and these motion scans can be continuous motion or step motion.

[0093] There can be a time interval between the laser insect killer emitting a killing laser beam and emitting an attracting laser beam, and the time interval is adjustable.

[0094] The following is an explanation of the devices used in the specific embodiments:

[0095] Embodiment 1, as Figure 1 As shown, the first laser 1 used in this embodiment is a semiconductor laser with a wavelength of 650nm, 520nm and 430nm, and the laser color modulation device 9 modulates the laser of the required color. The following will be described in detail with reference to specific application examples. The first beam expansion and collimation optical device 3 is a telescope with a diameter of 60mm, coated with an optical anti-reflection film in the visible light range, and enlarges the lured laser beam spot to a diameter of 50mm. The laser intensity is less than 1mW / cm 2, in line with Class I laser safety standards, harmless to human eyes, but can effectively lure pests around the laser beam. The second laser 2 is a 1064nm Nd:YVO4 laser with a laser power of 750mW. The second collimating optical device 4 is composed of convex lenses with focal lengths of 20mm and 40mm, respectively. The two convex lenses are coated with anti-reflection films at 1064nm. After passing through this collimating device, the 1064nm laser becomes a collimated beam with a diameter of 2mm, ensuring that the entire laser beam can effectively kill pests. The first reflector 5 and the second reflector 6 are plated with a high-reflection film at 1064nm, and the center distance between the first reflector 5 and the second reflector 6 is 120mm. The first reflector 5 and the second reflector 6 are installed on the placement device 7; the first rotating device 7 is composed of a 12V DC motor and a metal plate, wherein the first reflector 5 is at the centroid position, a hole is punched on the metal plate along the parallel direction of the incident light beam of the first reflector 5, the metal plate is installed on the motor bearing, and a metal block of suitable quality is installed at the metal plate in the direction opposite to the second reflector 6 to ensure dynamic balance; with the parallel direction of the incident light beam of the first reflector 5 as the rotating axis, the laser beam is made to perform continuous circular motion to kill the pests around the luring light beam. The metal plate is punched at the centroid position and installed on the electric bearing, and a metal block of suitable quality is installed at a position symmetrical to the second reflector 6 to ensure dynamic balance, and with the incident light beam of the first reflector 5 as the rotating axis, a continuous circular motion with a diameter of 120mm is performed to kill the pests around the luring light beam. The first optical window 8 is made of quartz glass, and the aperture is 250mm. The laser color control device 9 is a voltage control electronic device, which adjusts the working voltage of lasers of different wavelengths, thereby adjusting the lasers of different wavelengths to produce different output powers, and ensures that the laser power ratio of different wavelengths conforms to the power ratio of light color modulation, thereby realizing laser color modulation. The ambient light sensing device 10 is a photosensitive diode and a control and signal amplification electronic device, which monitors the automatic operation of the laser insect killer when pests are active at night. The second rotating device 11 is composed of a 12V DC stepper and a metal plate. The center of the metal plate is punched and installed on the motor bearing. The first laser 1, the second laser 2, the first beam expansion and collimation optical device 3, the second collimation optical device 4, the first reflector 5, the second reflector 6, the first rotating device 7, the first temperature control and heat dissipation device 13, the second temperature control and heat dissipation device 14 are placed on the metal plate, and a first housing 15 with a first optical window 8 is placed inside to form a laser overall device unit. The laser insect killer control device 12 is composed of a commonly used electronic control module, which has automatic laser emission and shutdown time control, environmental intelligent perception control and two automatic rotation device control interfaces. The first temperature control and heat dissipation device 13 and the second temperature control and heat dissipation device 14 are both commercially available products. The first shell 15 and the second shell 16 are both metal shells.The laser beam scanning angle adjustment device 17 is composed of a 12V DC stepping motor and a metal mechanical connector, which is mounted on the motor bearing, and the second rotating device 11 is mounted thereon. The laser insect killer driving power supply 18 is a commercially available product, with an input of 220V AC, an output voltage of 12V, and a current of 5A; and is equipped with a solar rechargeable battery as an emergency power supply.

[0096] Example 1, 1 is used to kill noctuid pests in organic vegetable planting fields: the required 400nm color laser is modulated by the laser color modulation device 9, and the output power is modulated at 15mW; the laser beam scanning angle adjustment device 17 automatically rotates and remains in a position parallel to the ground plane, the second rotating device 11 rotates by 10° every 5 minutes, and continuously makes a 360° circular motion; the first rotating device 7 rotates at a speed of 600rpm, which can effectively kill pests such as noctuid pests. 2 Used to kill ground pests such as mole crickets in organic vegetable planting fields: the required 415nm color laser is modulated by the laser color modulation device 9, and the output power is modulated at 19mW; the laser beam scanning angle adjustment device 17 automatically rotates and remains at a certain angle with the ground plane according to the field conditions to ensure that the luring laser beam and the killing laser beam are scanned to open spaces such as ridges without vegetables. The second rotating device 11 rotates 10° in steps every 5 minutes and continuously makes a 360° circular motion; the first rotating device 7 has a rotation speed of 600 rpm, which can effectively kill ground pests such as mole crickets.

[0097] Embodiment 2, as Figure 2 As shown, the first laser 1 used in this embodiment is a semiconductor laser with a wavelength of 430nm; the first beam expansion and collimation optical device 3 is a telescope with a diameter of 60mm, which is coated with an optical anti-reflection film in the visible light range, and the induced laser beam spot is enlarged to a diameter of 50mm, and the laser intensity is less than 1mW / cm 2, in line with Class I laser safety standards, harmless to human eyes, but can effectively lure pests around the laser beam. It can effectively lure pests around the laser beam. The second laser 2 is a 1342nm Nd:YVO4 laser with a laser power of 750mW. The second collimating optical device 4 is composed of convex lenses with focal lengths of 20mm and 40mm respectively. The two convex lenses are coated with anti-reflection films at 1342nm. After passing through this collimating device, the 1342nm laser becomes a collimated beam with a diameter of 2mm, ensuring that the entire laser beam can effectively kill pests. The first reflector 5 and the second reflector 6 are coated with a high reflective film at 1342nm, the center distance between the first reflector 5 and the second reflector 6 is 120mm, and the first reflector 5 and the second reflector 6 are installed on the placement device 7; the first rotating device 7 is composed of a 12V DC motor and a metal plate, wherein the first reflector 5 is at the center of mass position, a hole is punched on the metal plate along the direction parallel to the incident light beam of the first reflector 5, the metal plate is installed on the motor bearing, and a metal block of suitable mass is installed on the metal plate in the direction opposite to the second reflector 6 to ensure dynamic balance; with the direction parallel to the incident light beam of the first reflector 5 as the rotating axis, a continuous circular motion with a diameter of 120mm is made to kill the pests around the luring light beam. The first optical window 8 is made of quartz glass with a light aperture of 250mm. The laser wave color control device 9 is a voltage control electronic device, which adjusts the working voltage of lasers of different wavelengths and adjusts the laser output power, thereby realizing laser color modulation. The ambient light sensing device 10 is a photosensitive diode and a control and signal amplification electronic device, which monitors the automatic operation of the laser insect killer when the pests are active at night. The second rotating device 11 is composed of a 12V DC stepper and a metal plate. The center of the metal plate is punched and installed on the motor bearing. The first laser 1, the second laser 2, the first beam expansion collimation optical device 3, the second collimation optical device 4, the first reflector 5, the second reflector 6, the first rotating device 7, the first temperature control and heat dissipation device 13, the second temperature control and heat dissipation device 14 are placed on the metal plate, and a first shell 15 with a first optical window 8 is placed inside to form a laser integrated device unit. The laser insect killer control device 12 is composed of a commonly used electronic control module, which has automatic laser emission and shutdown time control, environmental intelligent perception control and two automatic rotating device control interfaces. The first temperature control and heat dissipation device 13 and the second temperature control and heat dissipation device 14 are both commercially available products. The first shell 15 and the second shell 16 are both metal shells. The laser beam scanning angle adjustment device 17 is composed of a 12V DC stepping motor and a metal mechanical connector, which is mounted on the motor bearing, and the second rotating device 11 is mounted thereon. The laser insect killer driving power supply 18 is a commercially available product, with an input of 220V AC, an output voltage of 12V, and a current of 5A; and is equipped with a solar cell as an emergency power supply.The first optical window 8 is mounted on the first housing 15, the first laser 1, the first temperature control and heat dissipation device 13, the first beam expansion and collimation optical device 3, the fifth reflector 21, the second laser 2, the second temperature control and heat dissipation device 14, the second collimation optical device 4, the third reflector 19 are placed inside the first housing 15 to form a laser unit; the second optical window 23 and the third optical window 24 are mounted on the third housing 25, the sixth reflector 22, the fourth reflector 20, the first reflector 5, the second reflector 6, and the first rotating device 7 are placed inside the third housing 25 to form a laser transmission unit. This laser transmission unit is placed on the second rotating device 11.

[0098] Embodiment 2 is used to kill moths, tussock moths, leaf moths and leaf rollers that harm fruit trees and trees. The first laser 1 emits a 430nm laser with an output power modulated at 19mW; the laser beam scanning angle adjustment device 17 automatically rotates and remains at a certain angle with the ground plane determined by the height of the fruit trees and trees and the environmental conditions to ensure that the luring laser beam and the killing laser beam scan the gaps between the fruit trees and trees in the air; the second rotating device 11 rotates 10° in steps every 5 minutes and continuously makes a 360° circular motion; the first rotating device 7 has a rotation speed of 600 rpm.

[0099] like Figure 3 As shown, a laser pest control method comprises:

[0100] Step 41, controlling the attracting laser emitting unit in the laser insect killer to emit an attracting laser beam, so that the pests actively gather around the attracting laser beam to form a killing area;

[0101] Step 42, controlling the killing laser emitting unit in the laser insect killer to emit a killing laser beam to the killing area to kill the pests.

[0102] The present invention has the following beneficial effects:

[0103] (1) Given that pests have strong phototropism and most are nocturnal, for example, literature reports that the response threshold of crickets to 433 nm blue light is 2.5×10 7 quantacm -2 s -1, Weaker than moonlight Herzmann and Labhart T, Spectral sensitivity and absolute threshold of polarization vision incrickets: a behavioral study. J Comp Physiol A, 1989, 165: 315-319, The present invention proposes that during the nocturnal activity of pests, the laser insect killer emits an attracting laser beam to attract pests with positive phototaxis to the surrounding of the attracting laser beam to form a killing area, which effectively solves the problem of laser shielding by protected targets such as crops; then the laser insect killer emits a killing laser beam to kill the pests gathered in the killing area, thereby realizing fully automatic laser insect killing and greatly improving the insect killing effect and efficiency.

[0104] (2) The killing area is controllable and movable, the killing area is large, and the number of pests killed is large. It can effectively kill both flying pests in the air and underground pests, effectively improving the pest control effect and efficiency.

[0105] (3) The present invention makes full use of the phototaxis of pests to induce them to actively gather and appear, away from protected targets such as crops and fruit trees, effectively overcoming the problem that it is difficult to control nocturnal pests manually or with equipment that requires manual operation, and effectively improving the pest control effect and efficiency.

[0106] (4) The pest killing area can be set in a safe area, which can effectively prevent the laser from damaging protected targets such as crops and fruit trees, and prevent the laser from interfering with the surrounding environment and personnel.

[0107] (5) The present invention makes full use of the phototaxis of pests and effectively scares away pests with negative phototaxis, thus also playing a role in preventing and controlling negative phototaxis pests.

[0108] (6) Taking full advantage of the long transmission distance of laser, a large-scale mobile luring and killing area is formed, which greatly improves the insecticide effect and efficiency.

[0109] (7) It has a wide range of applications and has important practical value for the development of agriculture, forestry, environmental protection and other industries, especially organic agriculture, and can generate huge economic and social benefits.

[0110] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A laser insect killer, characterized in that: include: An attracting laser emitting unit is used to emit an attracting laser beam to attract pests, so that the pests actively gather in a killing area formed around the attracting laser beam; A killing laser emitting unit corresponding to the position of the attracting laser emitting unit is used to emit a killing laser beam to the killing area to kill the pests; The induced laser emission unit comprises: at least one first laser (1), a first beam expansion and collimation optical device (3), a first temperature control and heat dissipation device (13), and a laser color control device (9) respectively arranged in a first housing (15); The laser color control device (9) is connected to the first laser (1) and is used to control the first laser (1) so that the first laser (1) emits an attracting laser of a color sensitive to the phototropism of insect pests; The first beam expansion and collimation optical device (3) is arranged behind the emission window of the first laser (1) and is used to expand and collimate the laser beam emitted by the first laser (1), thereby forming an effective luring laser beam; the luring laser beam is emitted through the first optical window (8) on the first housing (15); The first temperature control and heat dissipation device (13) is closely attached to the housing of the first laser (1) and is used to control the operating temperature and heat dissipation of the first laser (1); The killing laser emitting unit comprises: a second laser (2), a second collimating optical device (4), a first reflector (5), a second reflector (6), a first rotating device (7), and a second temperature control and heat dissipation device (14), which are respectively arranged in the first housing (15); The second laser (2) is used to emit infrared laser, visible light laser or ultraviolet laser for killing insects; The second collimating optical device (4) is arranged behind the emission window of the second laser (2) and is used to collimate the laser beam emitted by the second laser (2); The first reflector (5) and the second reflector (6) are sequentially placed behind the second collimating optical device (4) and arranged on the first rotating device (7) for reflecting and transmitting the killing laser beam, so that the reflected killing laser beam is emitted through the first optical window (8) on the first housing (15); The first rotating device (7) is used to make a circular motion with the direction parallel to the incident light beam of the first reflector (5) as the rotation axis, so that the killing laser beam forms a rotational motion around the attracting laser beam, thereby killing the pests in the killing area formed around the attracting laser beam; The second temperature control and heat dissipation device (14) is closely attached to the housing of the second laser (2) and is used to control the operating temperature and heat dissipation of the second laser (2); The first laser (1) is a laser with a single wavelength to which pests are sensitive to phototaxis, or a red, green and blue three-primary color laser group; When the first laser (1) is a single-wavelength laser to which pests are sensitive to light, the laser color control device (9) controls the output power of the first laser (1); When the first laser (1) is a red, green and blue three-primary color laser group, the laser color control device (9) controls the output power and output power ratio of the red light, green light and blue light emitted by the red, green and blue three-primary color laser group; The attracting laser emitting unit and the killing laser emitting unit are both arranged on a second rotating device (11), and the second rotating device (11) is arranged on a laser beam scanning angle adjusting device (17); The second rotating device (11) drives the attracting laser emitting unit and the killing laser emitting unit to perform circular motion; The laser beam scanning angle adjustment device (17) rotates to control the circular motion planes of the attracting laser beam and the killing laser beam; The laser beam scanning angle adjustment device (17) is an angle adjustment mechanical device driven by a stepping motor or a continuous rotation motor, or a manually operated angle adjustment mechanical device; or The laser beam scanning angle adjustment device (17) is adjusted to a fixed angle, or is rotated in steps, or is rotated continuously, so that the scanning planes of the luring laser beam emitted by the luring laser emitting unit and the killing laser beam emitted by the killing laser emitting unit are horizontal to the ground plane, or are scanned toward the ground or toward the air at an angle to the ground plane.

2. The laser insect killer according to claim 1, characterized in that: Also includes: An ambient light sensing device (10) and a laser insect killer control device (12); The ambient light sensing device (10) is connected to the laser insect killer control device (12) and is used to monitor the lighting environment in which pests are active and send a monitoring signal to the laser insect killer control device (12); The laser insect killer control device (12) is used to start the operation of various components of the laser insect killer when the monitoring signal is a lighting environment in which insects are active; and to stop the operation of various components of the laser insect killer when the monitoring signal is a lighting environment in which insects are no longer active.

3. The laser insect killer according to claim 2, characterized in that: The laser insect killer control device (12) is also connected to the first laser (1) and the second laser (2) respectively, and is used to set the time interval between the emission time of the killing laser beam and the luring laser beam, and control the time interval.

4. A laser insecticide method using the laser insecticide according to any one of claims 1 to 3, characterized in that: include: Controlling the attracting laser emitting unit in the laser insect killer to emit an attracting laser beam, so that the pests actively gather in the killing area formed around the attracting laser beam; The killing laser emitting unit in the laser insect killer corresponding to the position of the attracting laser emitting unit is controlled to emit killing laser to the killing area to kill the pests.

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