Laser energy superposition system and method
By using a laser energy superposition system that combines the rotation and movement of multifaceted reflectors, the problem of uneven ablation caused by positioning deviation in single laser beam ablation strikes has been solved, achieving rapid and effective laser precision strikes.
Patent Information
- Application Number
- CN202511925678.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-19
- Publication Date
- 2026-03-17
AI Technical Summary
In existing technologies, the single laser beam ablation method is prone to failure to effectively cover the target area due to target positioning deviation, resulting in poor ablation effect and low work efficiency.
By employing a laser energy superposition system, multiple laser beams are superimposed on a designated target through the rotation and movement of multi-faceted reflectors, achieving precision strikes.
Even with positioning deviations, it can quickly and effectively eliminate designated targets, achieving precision strikes.
Smart Images
Figure CN121677481A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of laser-based target strikes, and more particularly to a laser energy superposition system and method. Background Technology
[0002] The principle of laser strike is to precisely and continuously focus a high-energy laser beam on a tiny point on the target, projecting enormous energy in a very short time. This generates high temperature and pressure, thereby ablating, melting, and vaporizing the target material, or causing structural or functional damage to the target's interior.
[0003] Using lasers to strike targets has significant advantages, such as: light-speed strike, extremely high precision, unlimited "ammunition magazine," low operating cost, and flexible adjustability. However, using lasers to strike targets also has significant limitations, such as: 1. Atmospheric attenuation: Severe weather conditions such as clouds, rain, fog, dust, and smoke will severely scatter and absorb laser energy, greatly weakening or even completely rendering it ineffective.
[0004] Second, it has high energy requirements: it requires huge amounts of power sources or chemical fuels.
[0005] Third, the "dwelling time" requirement: the system needs to continuously illuminate the target for several seconds to take effect, which places extremely high demands on the stability of the tracking system.
[0006] IV. Line of sight limitation: It can only attack targets that are visible in a straight line and cannot be fired in a curved path like a missile.
[0007] Fifth, the destructive effect is relatively slow: Compared to the instantaneous destruction of kinetic energy impact, laser damage requires a process of energy accumulation.
[0008] As can be seen, the principle of laser target strike is essentially to precisely "inject" enormous energy into a small point on the target across a distance, using the form of light, and destroy it through thermodynamic and mechanical effects. However, in current technologies, most methods involve directly firing a single laser beam at a designated target for ablation. This single-laser-beam ablation method has significant drawbacks. For example, if the target positioning is off, the laser beam cannot effectively cover the target area, resulting in poor ablation effects. Furthermore, relying solely on a single laser beam for ablation is relatively inefficient, failing to meet the demands of high precision and high efficiency. Moreover, in applications such as laser shock peening and ablation, the concentrated energy and limited coverage of a single laser beam make it prone to missed strikes or uneven ablation if the target position shifts.
[0009] Therefore, it is necessary to provide a technical means to solve the above-mentioned defects. Summary of the Invention
[0010] The purpose of this invention is to overcome the defects of the prior art and provide a laser energy superposition system and method to solve the problems that the existing technology of using a single laser beam to ablate and strike is prone to the laser beam failing to effectively cover the target area due to target positioning deviation, resulting in poor ablation effect, uneven ablation, and low work efficiency.
[0011] This invention is implemented as follows: a laser energy superposition method, comprising: Get the specified target; Based on the location information of the designated target, the laser generator is controlled to emit a laser beam, which is then emitted to a multifaceted reflector that can reflect the laser beam back to the designated target. The multifaceted reflector is rotated at a set speed, and the laser generator and the multifaceted reflector are moved along a set path to reflect and superimpose the laser at different angles onto the designated target.
[0012] The present invention also provides another preferred embodiment, a laser energy superposition system, comprising: Image capture module, used to acquire a specified target; Laser generating module, used to generate laser light; A multifaceted reflector, which is spaced apart from the laser generating module, is used to reflect the laser beam incident on it to the designated target; A drive module, connected to the multifaceted reflector, is used to rotate the multifaceted reflector at a set rotation speed; The image camera module, the laser generator module, and the drive module are all mounted on the transport module and are used to transport the laser generator module and the multifaceted reflector so that the laser generator module and the multifaceted reflector move along a set path. A control module is electrically connected to the image camera module, the laser generator module, the drive module, and the carrier module, respectively, and is used to control the image camera module, the laser generator module, the drive module, and the carrier module to perform their respective tasks.
[0013] Compared with the prior art, the beneficial effects of the present invention are: By employing the laser energy superposition system and method of this application, a designated target can be ablated by multiple superimposed laser beams. In contrast to the existing technology that directly uses a laser head to shoot a single laser at a designated target for ablation, this method not only superimposes the laser energy to strike the designated target, thus quickly and effectively eliminating the target, but also ensures that even if the target is misaligned, the superimposed reflected laser beams can still reach and ablate the target with a high probability, thereby achieving a precise strike on the target. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the laser energy superposition method according to an embodiment of the present invention; Figure 2 This is a schematic diagram of a laser generator emitting laser light towards a multifaceted reflector in the laser energy superposition method of this invention. Figure 3 This is a schematic diagram of a laser generator emitting laser light into a rotating multifaceted reflector in the laser energy superposition method of this invention. Figure 4 This is a schematic diagram illustrating the application of the laser energy superposition method of this invention to perform laser superposition ablation strike when a specified target has a positioning deviation. Figure 5 This is a schematic diagram of the transport device in the laser energy superposition method according to an embodiment of the present invention; Figure 6 This is a circuit control schematic diagram of the laser energy superposition system according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the laser generating module of the laser energy superposition system of the present invention emitting laser light towards a multifaceted reflector; Figure 8 This is a schematic diagram of the laser generating module of the laser energy superposition system of the present invention emitting laser light into a rotating multifaceted reflector; Figure 9 This is a schematic diagram illustrating the application of the laser energy superposition system of this invention in performing laser superposition ablation strikes when a designated target exhibits positioning deviation. Figure 10 This is a schematic diagram of the carrier module of the laser energy superposition system according to an embodiment of the present invention. Detailed Implementation
[0015] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.
[0016] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or may have an intervening component present. When a component is referred to as "connected to" another component, it can be directly connected to the other component or may have an intervening component present. Example
[0017] Please see Figures 1 to 3The present invention provides a preferred embodiment, which relates to a laser energy superposition method, applied in the technical field of laser target strike, specifically comprising the following steps: Step S11: Obtain the specified target; During execution, multiple targets are captured by a camera, and the relevant image information of the multiple targets is transmitted to the control system or cloud platform. Specifically, the control system or cloud platform stores non-designated targets and designated targets. Therefore, the control system or cloud platform can determine and filter out non-designated targets and designated targets by comparing the relevant images of multiple targets captured by the camera with the non-designated targets and designated targets in the storage repository. If it is determined to be a non-designated target, the next step is not executed. If it is determined to be a designated target, the next step is executed. At the same time, the location information of the designated target is also calculated. Step S12: Based on the location information of the designated target, control the laser generator 20 to emit a laser and direct the laser to the multifaceted reflector 10 that can reflect the laser to the designated target; The location information of the designated target is the location information formed by the three-dimensional coordinates of xyz. The emitting end of the laser generator 20 is directed toward one of the reflecting surfaces of the multifaceted reflector 10. Preferably, the laser generator 20 can be selected from different types of lasers according to actual needs. For example, if laser ablation and weeding are required, a carbon dioxide laser, a semiconductor blue laser, or a high-power diode laser can be selected. Meanwhile, the multifaceted reflector 10 in this embodiment is preferably a regular polyhedron, such as a triangular prism, a quadrangular prism, a pentagonal prism, a hexagonal prism, etc. Step S13: Rotate the multifaceted reflector 10 at a set speed, and move the laser generator 20 and the multifaceted reflector 10 along a set path to reflect and superimpose the laser onto the designated target at different angles. When the multifaceted reflector 10 rotates at a set speed, the laser beam emitted by the laser generator 20 onto the multifaceted reflector 10 is reflected onto designated targets. Each laser beam hitting a designated target creates a laser spot, which can also be understood as a laser ablation point. The multiple laser spots reflected by the multifaceted reflector 10 and hitting the designated targets are connected to form a laser ray L. Simultaneously, because the laser generator 20 and the multifaceted reflector 10 are controlled to move along a set path, when the laser generator 20 and the multifaceted reflector 10 are moved, the laser generator 20... The laser generator 20 and the multifaceted reflector 10 can move along a horizontal line, or they can move in a non-linear direction, such as moving along a curve or rotating. Understandably, these implementations also fall within the protection scope of this embodiment. Meanwhile, the distance from the laser beam to the designated target is H. Thus, the multiple reflected laser beams reflected by the multifaceted reflector 10 form a laser beam surface A within the range of the designated target, i.e., A = L × H. At this time, the designated target is ablated by the superposition of multiple laser beams.
[0018] As can be seen, when using the laser energy superposition method of this embodiment to carry out laser strikes on a designated target, it is only necessary to first capture multiple targets with a camera and transmit the relevant image information of the multiple targets to the control system or cloud platform. Then, the control system or cloud platform determines and filters out the designated target and calculates the position information of the designated target accordingly. Next, based on the position information of the designated target, the laser generator 20 is controlled to emit laser light and direct the laser light to the multifaceted reflector 10 that can reflect the laser light to the designated target. Then, when the multifaceted reflector 10 rotates at a set speed, the laser generator 20 strikes the multifaceted reflector 10. The laser beams on the reflector 10 are reflected onto the designated target. Each laser beam hitting the designated target generates a laser spot. The laser spots of multiple reflected laser beams hitting the designated target are connected to form a laser ray L. At the same time, since the laser generator 20 and the multifaceted reflector 10 are controlled to move along a set path, the distance from the laser beam to the designated target is H. Thus, the range of multiple reflected laser beams hitting the designated target by the multifaceted reflector 10 forms a laser surface A, that is, A=L×H. At this time, the designated target is ablated by the superposition of multiple laser beams.
[0019] Because the laser energy superposition method of this embodiment allows a designated target to be ablated by multiple superimposed laser beams, compared to the prior art method of directly firing a single laser beam at a designated target for ablation, this method not only superimposes the laser energy to quickly and effectively eliminate the target, but also eliminates it even if the target is misaligned. Figure 4As shown, it can be understood that target point a is grass, target point b is land, and target point c is crops, and there is a certain distance between targets a, b, and c. If target point a is selected as the designated target, and the laser energy superposition method of this embodiment is used to strike the designated target, if the vehicle carrying the laser generator 20 and the multifaceted reflector 10 is running in an uneven field, causing the laser generator 20 and the multifaceted reflector 10 to vibrate, the designated target may shift to target point b. However, since the multiple reflected lasers reflected by the multifaceted reflector 10 form a laser ray surface within the range of target point b, it can be understood that the laser ray surface is the superposition ablation range of the laser. This superposition ablation range can cover target point a, that is, target point a can be simultaneously subjected to laser superposition ablation strike. Therefore, even if the designated target has a positioning deviation, the superimposed reflected laser can still touch and ablate the designated target with a high probability, thereby achieving a precise strike on the designated target.
[0020] Please see Figure 2 and Figure 3 In this embodiment, in order to enable the multifaceted reflector 10 to reflect the laser beam incident on it onto the target at a specified angle in a reasonable and effective manner, it is preferable to set the multifaceted reflector 10 to rotate around its center line, and control the rotational speed n of the multifaceted reflector 10 according to the laser energy required by the target. The multifaceted reflector 10 reflects Nn intervals of reflected laser 21 according to the number N of its corresponding surfaces, and these reflected laser 21 are superimposed on the designated target. The laser points of the Nn reflected laser 21 on the designated target are connected to form a laser ray L, and as the laser generator 20 and the multifaceted reflector 10 move according to the set path, a laser surface A is formed within the range of the designated target.
[0021] For a wave or radiation passing through a certain area, the total energy received is equal to the product of intensity, receiving area, and irradiation time. Similarly, for a laser beam passing through a certain area, the energy received by a designated target is equal to the product of intensity, receiving area, and irradiation time. Here, the laser beam is L, the distance from the laser beam to the designated target is H, and the area of the laser beam is A. Therefore, the relationship between them is: L × H = A.
[0022] Assume the intensity of the reflected laser 21 on the designated target is I, in watts per square meter (W / m²). The time it takes for the laser to be received on the designated target is t, in seconds (s). The area of the laser beam is A, in square meters (m²). The energy received by the specified target is E, in joules (J).
[0023] Therefore, the formula for the energy received by a specified target can be derived: E = I × A × t At the same time, if the laser energy required to eliminate a specified target is E', then the energy received by the specified target must be greater than or equal to the laser energy required to eliminate the specified target, that is, E≥E', so as to ensure that the specified target can be effectively eliminated.
[0024] Please see Figure 1 and combined Figure 2 and Figure 3 In this embodiment, in order to effectively control the rotational speed of the multifaceted reflector 10, a driving device 30 is configured to drive the multifaceted reflector 10 to rotate at a set speed.
[0025] Preferably, the drive device 30 is a servo motor, the output shaft of which is connected to the multifaceted reflector 10, and drives the multifaceted reflector 10 to rotate at a set speed through its output shaft. The servo motor is a type of motor capable of precisely controlling position, speed, or torque. It is a closed-loop system that monitors the output status in real time through a feedback device, compares it with the command signal, and automatically corrects errors.
[0026] Furthermore, using a servo motor allows for more precise control of the rotational speed of the multifaceted reflector 10. This is because the most common control mode for servo motors is called "position mode." In this mode, the host controller (such as a PLC or motion control card) precisely controls the motor's rotation angle and speed by sending pulse signals. It should also be noted that the pulse is a "stepping instruction" sent by the servo driver to the servo motor. Each pulse commands the motor to rotate by a fixed, minute angle. Therefore, by setting the servo motor's pulses, the rotation angle of the multifaceted reflector 10 can be effectively and precisely set.
[0027] Please see Figure 5 and combined Figure 2 and Figure 3 In this embodiment, in order to effectively control the laser generator 20 and the multifaceted reflector 10 to move stably and reasonably along the set path, preferably, the laser generator 20 and the multifaceted reflector 10 are moved along the set path by the transport device 40, and both the laser generator 20 and the multifaceted reflector 10 are mounted on the transport device 40. Moreover, the transport device 40 may optionally be a transport vehicle, a drone, or a robot dog.
[0028] If the transport device 40 is a transport trolley, the specific design of the transport trolley can be any existing transport trolley. The laser energy superposition method of this embodiment can be applied to the field of laser weed control. Accordingly, when laser ablation is to be performed on weeds, the transport trolley starts operating, and the camera mounted on the transport trolley automatically takes pictures of crops and weeds, transmitting the relevant image information to the control system or cloud platform. The control system or cloud platform then identifies and filters out the weeds and calculates their location information. Next, based on the weed location information, the laser generator 20 is controlled to emit a laser beam, which is then directed to a multifaceted reflector 10 that can reflect the laser beam onto the weeds. Then, when the multifaceted reflector 10 is positioned according to the design... When rotating at a constant speed, the laser beam emitted by the laser generator 20 onto the multifaceted reflector 10 is reflected onto the weeds. Each laser beam reflected onto the weeds creates a laser point. The laser points of multiple reflected laser beams onto the weeds connected by the multifaceted reflector 10 form a laser ray L. At the same time, since the laser generator 20 and the multifaceted reflector 10 are controlled to move along a set path, the distance from the laser beam to the weeds is H. Thus, the area of the multiple reflected laser beams onto the weeds formed by the multifaceted reflector 10 forms a laser surface A, i.e., A = L × H. At this time, the weeds are ablated by the superposition of multiple laser beams. In this way, compared to existing laser weeders that directly shoot a single laser beam at weeds for ablation, this method can not only superimpose the laser beams to ablate the weeds, thus quickly and effectively eliminating them, but also ensures that even if the transport vehicle experiences bumps and vibrations while running on uneven ground, causing positioning errors in the weed location calculated by the control system or cloud platform, the superimposed reflected laser beams can still reach and ablate the weeds with a high probability, thereby achieving precise weed control.
[0029] If the carrier device 40 is a drone, the specific design of the drone can be any existing drone. The laser energy superposition method of this embodiment can be applied to the field of laser pest control. Accordingly, when laser ablation is to be performed on pests, the drone starts operating, and the camera on the drone automatically takes pictures of crops and pests, transmitting the relevant image information to the control system or cloud platform. The control system or cloud platform then identifies and filters out the pests and calculates their location information. Next, based on the pest's location information, the laser generator 20 is controlled to emit a laser beam, which is then directed to a multifaceted reflector 10 that can reflect the laser beam to the pest. Then, the multifaceted reflector 10, according to a pre-set... When the laser generator 20 rotates, the laser beams emitted from the multifaceted reflector 10 are reflected onto the pests. Each reflected laser beam creates a laser point on the pest. The laser points of multiple reflected laser beams on the pests connected by the multifaceted reflector 10 form a laser ray L. Simultaneously, since the laser generator 20 and the multifaceted reflector 10 are controlled to move along a set path, the distance from the laser beam to the pest is H. Thus, the area of the multiple reflected laser beams on the pest formed by the multifaceted reflector 10 forms a laser surface A, i.e., A = L × H. At this point, the pest is ablated by the superimposed laser beams. In this way, not only can the pests be attacked in a superimposed manner to quickly and effectively eliminate them, but even if the drone experiences turbulence and vibration during operation, causing positioning deviations in the pest location calculated by the control system or cloud platform, the superimposed reflected laser beams can still reach and ablate the pests with a high probability, thereby achieving precise strikes against the pests.
[0030] If the carrier device 40 is a robot dog, the specific design of the robot dog can be any existing robot dog. The laser energy superposition method of this embodiment can be applied to the field of laser pest control. Accordingly, when laser ablation is to be performed on pests, the robot dog starts operating, and the camera on the robot dog automatically takes pictures of crops and pests, transmitting the relevant image information to the control system or cloud platform. The control system or cloud platform then identifies and filters out the pests and calculates their location information. Next, based on the pest's location information, the laser generator 20 is controlled to emit a laser beam, which is then directed to a multifaceted reflector 10 that can reflect the laser beam to the pest. Then, when the multifaceted reflector 10 is set... When the machine rotates, the laser beam emitted by the laser generator 20 onto the multifaceted reflector 10 is reflected onto the pest. Each laser beam reflected onto the pest creates a laser spot. The laser spots of multiple reflected laser beams onto the pest, connected by the multifaceted reflector 10, form a laser ray L. Simultaneously, since the laser generator 20 and the multifaceted reflector 10 are controlled to move along a set path, the distance from the laser beam to the pest is H. Thus, the area of the multiple reflected laser beams onto the pest formed by the multifaceted reflector 10 forms a laser surface A, i.e., A = L × H. At this point, the pest is ablated by the superimposed laser beams. In this way, not only can the pest be attacked in a superimposed manner to quickly and effectively eliminate it, but even if the machine dog experiences bumps and vibrations during operation, causing positioning deviations in the pest position calculated by the control system or cloud platform, the superimposed reflected laser beams can still reach and ablate the pest with a high probability, thereby achieving precise attack on the pest. Example
[0031] Please continue reading. Figure 6 , Figure 7 and Figure 8 As another preferred embodiment of the present invention, this embodiment relates to a laser energy superposition system 1, applied in the technical field of laser target striking, specifically including an image camera module 100, a laser generating module 200, a multifaceted reflector 10, a driving module 300, a transport module 400, and a control module 500. The following is a further description of each part of the laser energy superposition system 1 of this embodiment: The image capture module 100 is used to acquire a specified target. Preferably, the image capture module 100 is a camera. During the execution process, the camera captures multiple targets and then transmits the relevant image information of the multiple targets to the control module 500. Specifically, the control module 500 stores non-specified targets and specified targets. Therefore, the control module 500 can determine and filter out non-specified targets and specified targets by comparing the relevant images of the multiple targets captured by the camera with the non-specified targets and specified targets in the storage repository. Moreover, if it is determined to be a non-specified target, the next step is not executed. If it is determined to be a specified target, the next step is executed. At the same time, the position information of the specified target is also calculated. The laser generating module 200 is used to generate lasers. The laser generating module 200 can select different types of lasers according to actual needs. For example, if laser ablation and weeding are required, carbon dioxide lasers, semiconductor blue lasers and high-power diode lasers can be selected. The multifaceted reflector 10 is spaced apart from the laser generating module 200 and is used to reflect the laser beam incident on it to the designated target. Preferably, the multifaceted reflector 10 is a regular polyhedron, such as a triangular prism, a quadrangular prism, a pentagonal prism, a hexagonal prism, etc. The drive module 300 is connected to the multifaceted reflector 10 and is used to rotate the multifaceted reflector 10 at a set speed. The transport module 400 is used to transport the laser generating module 200 and the multifaceted reflector 10 so that the laser generating module 200 and the multifaceted reflector 10 move along a set path. The image camera module 100, the laser generating module 200, and the drive module 300 are all mounted on the transport module 400. The control module 500 is electrically connected to the image camera module 100, the laser generator module 200, the drive module 300, and the carrier module 400 respectively, and is used to control the image camera module 100, the laser generator module 200, the drive module 300, and the carrier module 400 to perform their work.
[0032] Therefore, when using the laser energy superposition system 1 of this embodiment to carry out laser strikes on a designated target, the system first captures multiple targets through the image camera module 100 and transmits the relevant image information of the multiple targets to the control module 500. The control module 500 then selects the designated target and calculates its position information. Next, based on the position information of the designated target, the control module 500 controls the laser generating module 200 to emit a laser beam, which is then directed to the multifaceted reflector 10 that can reflect the laser beam to the designated target. Then, the control module 500 controls the drive module 300 to operate, driving the multifaceted reflector 10 to rotate at a set speed. The laser beam emitted by the laser generating module 200 onto the multifaceted reflector 10 is reflected onto the designated target. Each laser beam hitting the designated target generates a laser point. The laser points of multiple reflected laser beams hitting the designated target are connected to form a laser beam. The light beam is L; and simultaneously, the control module 500 controls the transport module 400 to operate so that the transport module 400 carries the laser generating module 200 and the multifaceted reflector 10 to move along a set path. When the laser generating module 200 and the multifaceted reflector 10 are carried and moved by the transport module 400, the laser generating module 200 and the multifaceted reflector 10 can move along a horizontal line, or they can move in a non-linear direction, such as moving along a curve, rotating, etc. It is understood that these implementation methods also fall within the protection scope of this embodiment. At the same time, it should be noted that the distance from the laser beam to the designated target is H. Thus, the multiple reflected laser beams reflected by the multifaceted reflector 10 that hit the designated target form a laser beam surface A, that is, A=L×H. At this time, the designated target is ablated by the superposition of multiple laser beams.
[0033] Because the laser energy superposition system 1 of this embodiment is used, the designated target can be ablated by multiple superimposed laser beams. Therefore, compared to the prior art method of directly firing a single laser beam at the designated target from a laser head for ablation, this method not only allows for superimposed attack on the designated target, thus quickly and effectively eliminating it, but also ensures that even if the designated target experiences positioning deviations, such as... Figure 9As shown, it can be understood that target point a is grass, target point b is land, and target point c is crops, and there is a certain distance between targets a, b, and c. If target point a is selected as the designated target, and the laser energy superposition method of this embodiment is used to strike the designated target, if the carrier module 400 carrying the laser generator 20 and the multifaceted reflector 10 is running in an uneven field, causing the laser generator 20 and the multifaceted reflector 10 to vibrate, the designated target may shift to target point b. However, since the multiple reflected lasers reflected by the multifaceted reflector 10 form a laser ray surface within the range of target point b, it can be understood that the laser ray surface is the superposition ablation range of the laser. This superposition ablation range can cover target point a, that is, target point a can be simultaneously subjected to laser superposition ablation strike. Therefore, even if the designated target has a positioning deviation, the superimposed reflected laser can still touch and ablate the designated target with a high probability, thereby achieving a precise strike on the designated target.
[0034] Please see Figure 7 and Figure 8 In order to enable the multifaceted reflector 10 to reflect the laser beam incident on it onto the target at a specified angle in a reasonable and effective manner, preferably, the multifaceted reflector 10 is rotated around its center line. Thus, according to the laser energy required by the target, the rotational speed n of the multifaceted reflector 10 is controlled and set by the drive module 300 accordingly. In this way, the multifaceted reflector 10 will reflect Nn intervals of reflected laser beams 201 that are superimposed on the target according to the number N of its corresponding faces. The laser beams L of the Nn reflected laser beams 201 that are incident on the target are connected to form a laser beam L. As the laser generator 20 and the multifaceted reflector 10 move along the set path, a laser beam A is formed within the range of the target.
[0035] For a wave or radiation passing through a certain area, the total energy received is equal to the product of intensity, receiving area, and irradiation time. Similarly, for a laser beam passing through a certain area, the energy received by a designated target is equal to the product of intensity, receiving area, and irradiation time. Here, the laser beam is L, the distance from the laser beam to the designated target is H, and the area of the laser beam is A. Therefore, the relationship between them is: L × H = A.
[0036] Assume the intensity of the reflected laser 201 on the specified target is I, in watts per square meter (W / m²). The time it takes for the laser to be received on the designated target is t, in seconds (s). The area of the laser beam is A, in square meters (m²). The energy received by the specified target is E, in joules (J).
[0037] Therefore, the formula for the energy received by a specified target can be derived: E = I × A × t At the same time, if the laser energy required to eliminate a specified target is E', then the energy received by the specified target must be greater than or equal to the laser energy required to eliminate the specified target, that is, E≥E', so as to ensure that the specified target can be effectively eliminated.
[0038] Please see Figure 6 and Figure 10 and combined Figure 7 and Figure 8 In this embodiment, the preferred configuration of the drive module 300 is a servo motor. The output shaft of the servo motor is connected to the multifaceted reflector 10, and the multifaceted reflector 10 is driven to rotate at a set speed through its output shaft. The servo motor is a type of motor capable of precisely controlling position, speed, or torque. It is a closed-loop system that monitors the output status in real time through a feedback device, compares it with the command signal, and automatically corrects errors.
[0039] Furthermore, using a servo motor allows for more precise control of the rotational speed of the multifaceted reflector 10. This is because the most common control mode for servo motors is called "position mode." In this mode, the host controller (such as a PLC or motion control card) precisely controls the motor's rotation angle and speed by sending pulse signals. It should also be noted that the pulse is a "stepping instruction" sent by the servo driver to the servo motor. Each pulse commands the motor to rotate by a fixed, minute angle. Therefore, by setting the servo motor's pulses, the rotation angle of the multifaceted reflector 10 can be effectively and precisely set.
[0040] Please see Figure 10 and combined Figure 6 , Figure 7 and Figure 8 In this embodiment, the preferred embodiment of the transport module 400 is a transport vehicle, a drone, or a robot dog.
[0041] If the transport module 400 is a transport vehicle, the specific design of the transport vehicle can be any existing transport vehicle. The laser energy superposition system 1 of this embodiment can be applied to the field of laser weed control. Accordingly, when laser ablation is to be performed on weeds, the transport vehicle starts operating, and the camera mounted on the transport vehicle is controlled by the control module 500 to capture images of crops and weeds, transmitting the relevant image information to the control module 500. The control module 500 then identifies and filters out the weeds and calculates their location information. Next, based on the weed location information, the control module 500 controls the laser generating module 200 to emit a laser beam, which is then directed to a multifaceted reflector 10 that can reflect the laser beam onto the weeds. Finally, the control module 500 controls the drive module 300 to operate, thereby driving the multifaceted reflector. 10 rotates at a set speed. The laser beam emitted by the laser generating module 200 onto the multifaceted reflector 10 is reflected onto the weeds. Each laser beam reflected onto the weeds generates a laser point. The laser points of multiple reflected laser beams onto the weeds connected by the multifaceted reflector 10 form a laser ray L. At the same time, the control module 500 controls the transport module 400 to work, so that the transport module 400 transports the laser generating module 200 and the multifaceted reflector 10 along a set path. It should be noted that the distance from the laser beam to the weeds is H. Thus, the range of multiple reflected laser beams onto the weeds formed by the multifaceted reflector 10 forms a laser surface A, that is, A=L×H. At this time, the weeds are ablated by the superposition of multiple laser beams. In this way, compared with existing laser weeders that directly use a laser head to shoot a single laser at weeds for ablation, this method can not only strike weeds in layers to quickly and effectively eliminate them, but also, even if the transport vehicle shakes and vibrates when running on uneven ground, causing the positioning of the weeds calculated by the control module 500 to deviate, the superimposed reflected laser can still touch and ablate the weeds with a high probability, thus achieving precise strikes against the weeds.
[0042] If the transport module 400 is a drone, the specific design of the drone can be any existing drone. The laser energy superposition system 1 of this embodiment can be applied to the field of laser pest control. Accordingly, when laser ablation is to be performed on pests, the drone starts operating, and the camera mounted on the transport vehicle is controlled by the control module 500 to photograph crops and pests, transmitting the relevant image information to the control module 500. The control module 500 then identifies and filters out pests and calculates their location information. Next, based on the pest location information, the control module 500 controls the laser generating module 200 to emit a laser beam, which is then directed to a multifaceted reflector 10 that can reflect the laser beam back to the pest. Then, the control module 500 controls the drive module 300 to operate, thereby driving the multifaceted reflector 10. Rotating at a set speed, the laser beam emitted by the laser generating module 200 onto the multifaceted reflector 10 is reflected onto the pest. Each laser beam reflected onto the pest generates a laser point. The laser points of multiple reflected laser beams onto the pest connected together form a laser ray L. Simultaneously, the control module 500 controls the transport module 400 to move the laser generating module 200 and the multifaceted reflector 10 along a set path. It should be noted that the distance from the laser beam to the pest is H. Thus, the range of multiple reflected laser beams onto the pest formed by the multifaceted reflector 10 forms a laser surface A, i.e., A = L × H. At this time, the pest is ablated by the superposition of multiple laser beams. In this way, not only can pests be attacked in a superimposed manner to quickly and effectively eliminate them, but even if the drone experiences turbulence and vibration during operation, causing the control system or cloud platform to deviate from the calculated location of the pests, the superimposed reflected laser can still touch and ablate the pests with a high probability, thus achieving precise strikes against the pests.
[0043] If the transport module 400 is a robot dog, the specific design of the robot dog can be any existing robot dog. The laser energy superposition system 1 of this embodiment can be applied to the field of laser pest control. Accordingly, when laser ablation is to be performed on pests, the robot dog starts operating, and the camera mounted on the robot dog is controlled by the control module 500 to take pictures of crops and weeds, transmitting the relevant image information of the crops and weeds to the control module 500. The control module 500 then identifies and filters out the weeds and calculates their location information. Next, based on the location information of the pests, the control module 500 controls the laser generating module 200 to emit a laser, which is then directed to the multifaceted reflector 10 that can reflect the laser back to the pests. Then, the control module 500 controls the drive module 300 to operate, so that the drive module 300 drives the multifaceted reflector 10. Rotating at a set speed, the laser beam emitted by the laser generating module 200 onto the multifaceted reflector 10 is reflected onto the pest. Each laser beam reflected onto the pest generates a laser point. The laser points of multiple reflected laser beams onto the pest connected together form a laser ray L. Simultaneously, the control module 500 controls the transport module 400 to move the laser generating module 200 and the multifaceted reflector 10 along a set path. It should be noted that the distance from the laser beam to the pest is H. Thus, the range of multiple reflected laser beams onto the pest formed by the multifaceted reflector 10 forms a laser surface A, i.e., A = L × H. At this time, the pest is ablated by the superposition of multiple laser beams. In this way, not only can pests be attacked in a superimposed manner to quickly and effectively eliminate them, but even if the robot dog experiences bumps and vibrations during operation, causing the control system or cloud platform to deviate from the calculated location of the pests, the superimposed reflected laser can still touch and ablate the pests with a high probability, thus achieving precise strikes against the pests.
[0044] The above description is only a preferred embodiment of the present invention, and its structure is not limited to the shapes listed above. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A method of laser energy superposition, characterized by, The application comprises: acquiring a specified target; controlling a laser generator to emit laser light to a multi-faceted reflector which can reflect the laser light to the specified target according to the position information of the specified target; rotating the multi-faceted reflector at a set speed and moving the laser generator and the multi-faceted reflector along a set path to superimpose laser light reflected at different angles on the specified target.
2. The laser energy superposition method of claim 1, wherein: rotating the multi-faceted reflector around its center line and controlling the speed n of the multi-faceted reflector according to the required laser energy of the specified target; reflecting Nn pieces of laser light from the multi-faceted reflector according to the corresponding number N of facets, and superimposing the reflected laser light on the specified target, and connecting the laser light spots on the specified target to form a laser light ray, and forming a laser light plane on the specified target as the laser generator and the multi-faceted reflector move along the set path.
3. The laser energy build-up method of claim 1, wherein: A driving device drives the multi-faceted reflector to rotate at a set speed.
4. The laser energy superposition method of claim 3, wherein: The driving device is a servo motor, and the output shaft of the servo motor is connected to the multi-faceted reflector and drives the multi-faceted reflector to rotate at a set speed through the output shaft.
5. The laser energy build-up method of claim 1, wherein: The multi-faceted reflector is a multi-prism.
6. A laser energy superposition system, characterized by, The application comprises: an image camera module for acquiring a specified target; a laser generator module for generating laser light; a multi-faceted reflector which is spaced apart from the laser generator module and reflects laser light incident thereon to the specified target; a driving module which is connected to the multi-faceted reflector and rotates the multi-faceted reflector at a set speed; a carrier module on which the image camera module, the laser generator module, and the driving module are arranged, and which carries the laser generator module and the multi-faceted reflector to move the laser generator module and the multi-faceted reflector along a set path; a control module which is electrically connected to the image camera module, the laser generator module, the driving module, and the carrier module, and controls the image camera module, the laser generator module, the driving module, and the carrier module to perform work.
7. The laser energy stacking system of claim 6, wherein: The driving module is a servo motor, and the output shaft of the servo motor is connected to the multi-faceted reflector and drives the multi-faceted reflector to rotate at a set speed through the output shaft.
8. The laser energy stacking system of claim 6, wherein: The multi-faceted reflector is a multi-prism.
9. The laser energy stacking system of claim 6, wherein: The image camera module is a camera.
10. The laser energy stacking system of claim 6, wherein: The carrier module is a carrier trolley, a drone, or a robot dog.