A device and method for detecting the lodging resistance of rice stems in the field

Abstract

The present invention relates to a device for detecting the lodging resistance of rice stems in the field, which includes a mobile tool, on which a first unmanned aerial vehicle (UAV), a second UAV and a remote host are carried; the remote host divides the test field into multiple sub-regions distributed in a matrix, and edits and sets a path according to the sub-regions so that the first UAV flies over the upper part of each sub-region; the set path includes a lateral movement route, and in the lateral movement route, there are multiple lifting nodes, and a longitudinal lateral movement route is arranged at the lifting nodes. After the first UAV moves along the longitudinal lateral movement route at the lifting nodes, it resets and returns to the lifting nodes and continues to move along the lateral movement route; an image acquisition unit is carried on the second UAV; by applying the method of the present application, after simple setting, the entire test field can be tested in a very short time. In addition, by adjusting the longitudinal height of the first UAV at the lifting nodes, the inclination state of the rice in the sub-region under different wind pressures can be obtained, and the detection flexibility is high.

Description

Technical Field

[0001] The invention relates to the technical field of rice stalk lodging resistance detection, and more specifically, to a device and a method for detecting the lodging resistance of rice stalks in a field. Background Art

[0002] The lodging resistance of rice rhizomes is an important indicator of rice. Rice lodging refers to the phenomenon that upright crops become tilted or even fall to the ground due to natural factors such as wind, hail, and rainstorms or external forces. When crops such as wheat and rice are seriously lodged, the yield is seriously affected and may even result in a total crop failure.

[0003] At present, the lodging resistance of rice roots and stems in experimental fields mostly requires manual spot checks, which is time-consuming and labor-intensive. Although the accuracy of individual tests can be guaranteed, there are usually large errors in the overall lodging resistance level of the experimental field, and the test will damage the crops. There is a need for a device and method that can quickly test the lodging resistance of rice stems in the entire experimental field. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a device and method for detecting the lodging resistance of rice stalks in the field in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A device for detecting the lodging resistance of rice stalks in a field is constructed, wherein the device comprises a mobile tool, on which a first unmanned aerial vehicle, a second unmanned aerial vehicle and a remote host are mounted; the remote host divides a test field into a plurality of sub-areas distributed in a matrix, and edits and sets a path according to the sub-areas so that the first unmanned aerial vehicle flies over each of the sub-areas;

[0007] The set path includes a transverse movement route, and the transverse movement route includes a plurality of lifting nodes, and a longitudinal movement route is set at the lifting nodes. After the first UAV moves along the longitudinal movement route at the lifting nodes, it resets and returns to the lifting nodes and continues to move along the transverse movement route;

[0008] The second drone is equipped with an image acquisition unit, and the second drone is controlled by the remote host to move synchronously with the first drone, and there is a lateral distance between the second drone and the first drone;

[0009] The remote host is also used to receive the inclination state of the rice in the collection sub-region by the second UAV when the first UAV moves along the longitudinal movement route, and compare the inclination state with the standard state to analyze whether the lodging resistance ability of the rice stem is qualified; the standard state is stored in the remote host and is the standard inclination state obtained by the selected rice stem with qualified lodging resistance ability under the longitudinal movement wind pressure of the first UAV.

[0010] In the device for detecting the lodging resistance ability of rice stems in the field according to the present invention, one of the first UAV and the second UAV is provided with an infrared transmitting unit that emits infrared light horizontally, and the other is provided with an infrared receiving unit that receives the infrared light emitted by the infrared transmitting unit; the remote host judges whether the first UAV and the second UAV are on the same horizontal line according to the infrared light received by the infrared receiving unit.

[0011] In the device for detecting the lodging resistance ability of rice stems in the field according to the present invention, there are two infrared transmitting units, which are longitudinally distributed on the side surface of the fuselage of the first UAV; there are two infrared receiving units, which are longitudinally distributed on the side surface of the fuselage of the second UAV.

[0012] In the device for detecting the lodging resistance ability of rice stems in the field according to the present invention, the mobile tool is equipped with a first landing platform corresponding to the first UAV and a second landing platform corresponding to the second UAV.

[0013] In the device for detecting the lodging resistance ability of rice stems in the field according to the present invention, the horizontal distance between the first UAV and the second UAV is not less than 1.5 meters.

[0014] In the device for detecting the lodging resistance ability of rice stems in the field according to the present invention, the transverse movement route is in a continuous S shape.

[0015] A method for detecting the lodging resistance ability of rice stems in the field, which is applied to the device for detecting the lodging resistance ability of rice stems in the field as described above, and the implementation method is as follows:

[0016] After the mobile tool moves to the edge of the experimental field, the remote host controls the second UAV to take off and collect the overall image of the entire experimental field, divides it into multiple matrix distribution sub-regions, and plans the movement path of the first UAV; the movement path includes a transverse movement route, and there are multiple lifting nodes in the transverse movement route. A longitudinal longitudinal movement route is provided at the lifting node. After the first UAV moves along the longitudinal movement route at the lifting node, it resets and returns to the lifting node and continues to move along the transverse movement route;

[0017] The remote host controls the second unmanned aerial vehicle (UAV) to move horizontally and vertically in synchronization with the first UAV while maintaining a set lateral spacing from the first UAV, and collects the tilting state of the rice in the sub-region being collected by the second UAV when the first UAV moves along the longitudinal movement route. The tilting state is compared with the standard state to analyze whether the lodging resistance ability of the rice stems is qualified; the standard state is the standard tilting state obtained by the selected rice stems with qualified lodging resistance ability under the longitudinal movement wind pressure of the first UAV.

[0018] The beneficial effects of the present invention are as follows: After the moving tool moves to the edge of the experimental field, the remote host controls the second UAV to take off and collect the overall image of the entire experimental field, divides it into multiple sub-regions with a matrix distribution, and plans the movement route of the first UAV; the movement route includes a horizontal movement route, and there are multiple lifting nodes in the horizontal movement route. At the lifting nodes, there are longitudinal longitudinal movement routes. The first UAV moves along the longitudinal movement route at the lifting nodes and then resets and returns to the lifting nodes and continues to move along the horizontal movement route; the remote host controls the second UAV to move horizontally and vertically in synchronization with the first UAV while maintaining a set lateral spacing from the first UAV, and collects the tilting state of the rice in the sub-region being collected by the second UAV when the first UAV moves along the longitudinal movement route. The tilting state is compared with the standard state to analyze whether the lodging resistance ability of the rice stems is qualified; the standard state is the standard tilting state obtained by the selected rice stems with qualified lodging resistance ability under the longitudinal movement wind pressure of the first UAV; by applying the method of the present application, after simple setting, the entire experimental field can be tested in a very short time. In addition, by adjusting the longitudinal height of the first UAV at the lifting nodes, the tilting states of the rice in the sub-region under different wind pressures can be obtained, with high detection flexibility, better integrity, and significant savings in manpower and material resources, and no damage to the crops. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will further illustrate the present invention in conjunction with the drawings and embodiments. The drawings in the following description are only partial embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings:

[0020] Figure 1 It is a schematic diagram of the experimental field partition of the device for detecting the lodging resistance ability of rice stems in the field in a preferred embodiment of the present invention;

[0021] Figure 2 It is a schematic block diagram of the device for detecting the lodging resistance ability of rice stems in the field in a preferred embodiment of the present invention;

[0022] Figure 3 It is a schematic diagram of the set path of the device for detecting the lodging resistance ability of rice stems in the field in a preferred embodiment of the present invention;

[0023] Figure 4 It is an infrared pair - shooting schematic diagram of the device for detecting the lodging resistance of rice stems in the field, which is a preferred embodiment of the present invention. Specific embodiments

[0024] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] The device for detecting the lodging resistance of rice stems in the field, which is a preferred embodiment of the present invention, as Figure 1 shown, and referring to Figures 2-4 simultaneously, includes a mobile tool 1, on which a first unmanned aerial vehicle 10, a second unmanned aerial vehicle 11, and a remote host 12 are carried; the remote host 12 divides the test field into multiple sub - regions 20 distributed in a matrix, and edits and sets a path according to the sub - regions 20 so that the first unmanned aerial vehicle 10 flies over the upper part of each sub - region;

[0026] The set path includes a transverse movement route 30, and in the transverse movement route 30, there are multiple lifting nodes 31. At the lifting nodes 31, there are longitudinal longitudinal movement routes 32. The first unmanned aerial vehicle 10 moves along the longitudinal movement route at the lifting nodes 31, then resets and returns to the lifting nodes 31 and continues to move along the transverse movement route 30;

[0027] The second unmanned aerial vehicle 11 is equipped with an image acquisition unit 110, and the second unmanned aerial vehicle 11 is controlled by the remote host 12 to move synchronously with the first unmanned aerial vehicle 10. There is a lateral distance between the second unmanned aerial vehicle 11 and the first unmanned aerial vehicle 10;

[0028] The remote host 12 is also used to receive the inclination state of the rice in the sub - region collected by the second unmanned aerial vehicle 11 when the first unmanned aerial vehicle 10 moves along the longitudinal movement route, and compare the inclination state with the standard state to analyze whether the lodging resistance of the rice stems is qualified; the standard state is stored in the remote host, and it is the standard inclination state obtained by the selected rice stems with qualified lodging resistance under the longitudinal movement wind pressure of the first unmanned aerial vehicle;

[0029] After the mobile tool 1 (preferably a vehicle, such as a pickup truck, etc.) moves to the edge of the experimental field, the remote host 12 controls the second unmanned aerial vehicle 11 to take off and collect the overall image of the entire experimental field, divides it into multiple matrix-distributed sub-regions 20, and plans the movement path of the first unmanned aerial vehicle 10; the movement path includes a lateral movement route 30, and there are multiple lifting nodes 31 in the lateral movement route 30. A longitudinal longitudinal movement route 32 is provided at the lifting node 31. After the first unmanned aerial vehicle 10 moves along the longitudinal movement route 32 at the lifting node 31, it resets and returns to the lifting node 31 and continues to move along the lateral movement route 30;

[0030] The remote host 12 controls the second unmanned aerial vehicle 11 to move horizontally and vertically synchronously with the first unmanned aerial vehicle 10 while maintaining a set lateral spacing from the first unmanned aerial vehicle 11, and collects the inclination state of the rice in the sub-region through the second unmanned aerial vehicle 11 when the first unmanned aerial vehicle 11 moves along the longitudinal movement route, and compares the inclination state with the standard state to analyze whether the lodging resistance of the rice straw is qualified;

[0031] The standard state is the standard inclination state obtained by the rice straw with qualified lodging resistance under the longitudinal movement wind pressure of the first unmanned aerial vehicle.

[0032] By applying the method of the present application, the entire experimental field can be tested within a very short time after simple setting. In addition, by adjusting the longitudinal height of the first unmanned aerial vehicle at the lifting node, the inclination state of the rice in the sub-region under different wind pressures can also be obtained. The detection flexibility is high, the integrity is better, and a large amount of manpower and material resources are saved, and there is no damage to the crops;

[0033] The second unmanned aerial vehicle and the first unmanned aerial vehicle need to maintain a certain distance to reduce or avoid the interference of the wind pressure generated by the operation of the second unmanned aerial vehicle on the sub-region to be detected, and at the same time ensure that the shooting angle does not shift in the left and right directions; and the second unmanned aerial vehicle and the first unmanned aerial vehicle maintain synchronization in longitudinal movement. First, it is to avoid repeatedly synchronizing the first unmanned aerial vehicle and the second unmanned aerial vehicle. Second, it is used to ensure that the shooting picture in the longitudinal angle can cover a large area. Of course, it is necessary to pay attention to adjusting the shooting angle of the image acquisition unit on the second unmanned aerial vehicle during setting to avoid the situation that the rice situation in the sub-region of the image acquisition unit is out of the shooting picture when the second unmanned aerial vehicle moves longitudinally.

[0034] Preferably, one of the first drone 10 and the second drone 11 is provided with an infrared emission unit 100 that emits infrared light horizontally, and the other is provided with an infrared reception unit 111 that receives the infrared light emitted by the infrared emission unit; the remote host 12 determines whether the first drone 10 and the second drone 11 are on the same horizontal line based on the infrared light received by the infrared reception unit 111; there are two infrared emission units, and they are longitudinally distributed on the side surface of the fuselage of the first drone; there are two infrared reception units, and they are longitudinally distributed on the side surface of the fuselage of the second drone; the accurate alignment of the first drone and the second drone in the horizontal and vertical directions is determined by two groups of longitudinally distributed infrared pair-emitting components.

[0035] Preferably, a first landing platform 13 corresponding to the first drone 10 and a second landing platform 14 corresponding to the second drone 11 are carried on the mobile tool 1.

[0036] Preferably, the horizontal distance between the first drone 10 and the second drone 11 is not less than 1.5 meters.

[0037] Preferably, the horizontal movement route is in a continuous S shape.

[0038] A method for detecting the lodging resistance of rice stems in the field, which is applied to the above-mentioned device for detecting the lodging resistance of rice stems in the field, and the implementation method is as follows:

[0039] After the mobile tool moves to the edge of the experimental field, the remote host controls the second drone to take off and collect the overall image of the entire experimental field, divides it into multiple matrix-distributed sub-regions, and plans the movement path of the first drone; the movement path includes a horizontal movement route, and there are multiple lifting nodes in the horizontal movement route. There is a longitudinal vertical movement route at the lifting nodes. The first drone moves along the vertical movement route at the lifting nodes and then resets and returns to the lifting nodes and continues to move along the horizontal movement route;

[0040] The remote host controls the second drone to move horizontally and vertically synchronously with the first drone while maintaining a set horizontal distance from the first drone, and collects the tilting state of the rice in the sub-region by the second drone when the first drone moves along the vertical movement route, and compares the tilting state with the standard state to analyze whether the lodging resistance of the rice stems is qualified; the standard state is the standard tilting state obtained by the selected rice stems with qualified lodging resistance under the longitudinal wind pressure of the first drone.

[0041] By applying the method of the present application, after simple setting, the entire experimental field can be tested in a very short time. In addition, by adjusting the longitudinal height of the first drone at the lifting nodes, the tilting states of the rice in the sub-region under different wind pressures can be obtained. The detection flexibility is high, the integrity is better, and a large amount of manpower and material resources are saved, and the crops are not damaged.

[0042] It should be understood that those of ordinary skill in the art can make improvements or modifications based on the above description, and all such improvements and modifications shall fall within the protection scope of the appended claims of the present invention.

Claims

1. A detection device for the lodging resistance of rice stems in the field, characterized in that, It includes a mobile tool on which a first drone, a second drone and a remote host are carried; the remote host divides the experimental field into multiple sub-regions distributed in a matrix, and edits and sets a path according to the sub-regions so that the first drone flies over the upper part of each sub-region; The set path includes a lateral movement route, and the lateral movement route includes multiple lifting nodes. A longitudinal longitudinal movement route is provided at the lifting nodes. The first drone moves along the longitudinal movement route at the lifting nodes and then resets and returns to the lifting nodes and continues to move along the lateral movement route; An image acquisition unit is carried on the second drone, and the second drone is controlled by the remote host to move synchronously with the first drone. There is a lateral distance between the second drone and the first drone; The remote host is also used to receive the inclination state of the rice in the sub-region collected by the second drone when the first drone moves along the longitudinal movement route, and compare the inclination state with the standard state to analyze whether the lodging resistance of the rice stem is qualified; the standard state is stored in the remote host and is the standard inclination state obtained by the selected rice stems with qualified lodging resistance under the longitudinal movement wind pressure of the first drone; One of the first drone and the second drone is provided with an infrared emission unit that emits infrared light horizontally, and the other is provided with an infrared reception unit that receives the infrared emission unit; the remote host judges whether the first drone and the second drone are on the same horizontal line according to the infrared light received by the infrared reception unit; the lateral distance between the first drone and the second drone is not less than 1.5 meters; the lateral movement route is in a continuous S shape.

2. The field rice stalk lodging resistance detection device according to claim 1, characterized in that, There are two infrared emission units, which are longitudinally distributed on the side surface of the fuselage of the first drone; there are two infrared reception units, which are longitudinally distributed on the side surface of the fuselage of the second drone.

3. The device for detecting the lodging resistance of rice stems in the field according to any one of claims 1-2, characterized in that, The mobile tool is carried with a first landing platform corresponding to the first drone and a second landing platform corresponding to the second drone.

4. A method for detecting the lodging resistance of rice stems in the field, which is applied to the device for detecting the lodging resistance of rice stems in the field as described in any one of claims 1-3, and is characterized in that, The implementation method is as follows: After the mobile tool moves to the edge of the experimental field, the remote host controls the second drone to take off and collect the overall image of the entire experimental field, divides it into multiple sub-regions distributed in a matrix, and plans the movement path of the first drone; The movement path includes a lateral movement route, and the lateral movement route includes multiple lifting nodes. A longitudinal longitudinal movement route is provided at the lifting nodes. The first drone moves along the longitudinal movement route at the lifting nodes and then resets and returns to the lifting nodes and continues to move along the lateral movement route; The remote host controls the second drone to move horizontally and vertically synchronously with the first drone while maintaining a set lateral distance from the first drone, and collects the inclination state of the rice in the sub-region by the second drone when the first drone moves along the longitudinal movement route, and compares the inclination state with the standard state to analyze whether the lodging resistance of the rice stem is qualified; the standard state is the standard inclination state obtained by the selected rice stems with qualified lodging resistance under the longitudinal movement wind pressure of the first drone.

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