WO2018045636A1

WO2018045636A1 - Precise spray system for crops

Info

Publication number: WO2018045636A1
Application number: PCT/CN2016/107104
Authority: WO
Inventors: 陈乐春
Original assignee: 数字鹰科技盐城有限公司
Priority date: 2016-09-06
Filing date: 2016-11-24
Publication date: 2018-03-15
Also published as: KR102103092B1; KR20180042406A; CN106234341A

Abstract

A precise spray system for crops, comprising N trolleys (1) (N is greater than or equal to 2) capable of walking on the field, N telescopic rods (3) vertically mounted on the tops of the N trolleys (1), and N telescopic mechanisms (4) mounted on the N telescopic rods (3). Pesticide tanks (5) and pumps (6) are mounted in the trolleys (1); a transmission pipe (7) is mounted between the telescopic rods (3); multiple spray nozzles (8) are evenly distributed on the transmission pipe (7); a distance measurement device (13) and a main control module (14) are mounted on the transmission pipe (7); the main control module (14) is electrically connected to the distance measurement device (13) and the telescopic mechanisms (4). The system can ensure the distances between from the spray nozzles (8) to the tops of crops, achieve precise spray without manual manipulation, effectively avoid excessive or missing spray caused by blind human adjustment due to unsmooth terrain or different types of crops, thereby improving the pesticide spray precision for the crops, the spray uniformity, and the pesticide utilization rate, reducing the burden of spraying large farmlands, and improving the spray efficiency.

Description

Crop precise spraying system

Technical field

The invention relates to the field of plant protection, in particular to a precise spraying system capable of realizing highly automatic application of pesticides.

Background technique

In the field of plant protection, the current pesticide spraying methods mainly include artificial spraying, spraying of pesticide spray vehicles, and spraying of aircraft. Manual spraying requires manual carrying equipment to work in the ridges, which is not only inefficient, but also harmful to the human body with high concentrations of harmful gases. Pesticide spray truck spraying and aircraft spraying can only deal with the scene where the crop height in the working area is relatively uniform. However, for the unevenness of farmland ground and the inconsistency of crops in a working area caused by multi-species crops, it is easy to cause the liquid medicine to The problem of uneven distribution on the target requires the operator to have superb operation technology, constantly adjust the spray height, and achieve the requirement of uniform drug spray. The operator only controls the application height by visual inspection, which is not only high on professional technology, but also Accuracy is difficult to guarantee. Moreover, for large-area farmland, when aircraft is sprayed, the aircraft needs to go back and forth several times, and the drug addition operation is required in the middle, which has high requirements on the aircraft's endurance and handling personnel. Therefore, in the field of plant protection, there is an urgent need for a precise spraying system that can automatically spray large areas of farmland at a specified height.

Summary of the invention

In view of the above situation, the present invention provides a self-propelled, fixed-high, accurate crop spraying system for large-area farmland, which can overcome the ground undulation and the growth height of different crops, realize automatic and precise spraying, and reduce large-area farmland. Spraying load and improving spraying efficiency.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

A precise crop spraying system comprising:

Field walking mechanism, including N (N ≥ 2) cars that can walk in the field;

The height adjustment mechanism comprises N telescopic rods and N telescopic rods respectively mounted vertically on the top of the N trolleys, and the N telescopic mechanisms are respectively mounted on the N telescopic rods, the telescopic rods The length can be expanded and contracted under the control of the telescopic mechanism;

a conveying and spraying mechanism, comprising a medicine box, a pump, a transportation tube and a spray head, wherein the medicine box and the pump are installed in the trolley, a pump is installed at an outlet of the medicine box, and one end of the telescopic rod is connected; the transportation tube is erected Between the telescopic rods, the two ends of the transport tube are respectively connected to the other of the telescopic rod The nozzle has a plurality of nozzles that are evenly distributed and mounted on the transport tube;

The ranging system, including the distance measuring device and the main control module, are mounted on the transport tube, and the main control module is electrically connected to the distance measuring device and the telescopic mechanism.

According to an aspect of the present invention, a transport tube tensioning mechanism is further included, including an upper hoisting mechanism, a traction rope, and two hoisting mechanisms; the upper hoisting mechanism is mounted on a top of the telescopic rod, and the traction rope has a plurality of One end is connected to the upper hoisting mechanism, and the other end is respectively fixed at different positions of the transport tube; the length of the traction rope can be retracted under the control of the upper hoisting mechanism; the hoisting mechanisms on both sides are installed at Where the telescopic rod is coupled to the transport tube, the length of the transport tube can be retracted under the control of the two side hoisting mechanisms.

According to an aspect of the invention, N positioning modules for ensuring parallel and synchronous movement of the N cars are respectively installed in the N cars.

According to an aspect of the invention, the telescopic rod is an inner hollow sealed waterproof tube, and the medical liquid is transported inside the telescopic rod; or the inner or outer portion of the telescopic rod is mounted with a hose extending along the length of the telescopic rod The drug solution is delivered in the hose.

According to an aspect of the invention, the spray head has a flow control unit therein; when the spray head is outside the two-side hoisting mechanism, the flow control unit is opened to perform work; when the spray head is in the hoisting mechanism on both sides The flow control unit is turned off and no work is performed.

Advantages of the implementation of the invention:

When the invention travels in the field, the distance measuring device synchronously measures the distance from the top of the crop, and feeds back to the main control module, and the main control module controls the movement of the telescopic mechanism, adjusts the height of the transport tube connecting the nozzles, and ensures the distance between the nozzle and the top of the crop. Achieve precision spray. No need for human manipulation, effectively avoiding blind adjustments due to uneven terrain or different crop types, resulting in multiple sprays or leaks, improving spray precision of crop drugs, improving spray uniformity, improving pesticide utilization, and reducing the burden of spraying on large areas of farmland. Improve spray efficiency.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the structure of an embodiment of the present invention.

2 is a schematic block diagram of an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

As shown in FIG. 1 and FIG. 2, the composition of an embodiment of the present invention is as follows:

The field walking mechanism includes two small cars that can walk in the field. The positioning module 2 is installed on the trolley, and positioning by GPS, differential method, Beidou, etc. can ensure that the two trolleys 1 maintain parallel and synchronous movement.

The height adjustment mechanism includes two telescopic rods 3 and two telescopic mechanisms 4. Two telescopic rods 3 are vertically mounted on the top of the two carts 1, and two telescopic mechanisms 4 are respectively mounted on the two telescopic rods 3. The length of the telescopic rod 3 can be expanded and contracted under the control of the telescopic mechanism 4. In the first solution, the telescopic rod 3 itself is a sealed waterproof tube, and the inside is hollow, and the liquid medicine can be directly transported inside the telescopic rod 3. In the second embodiment, the telescopic rod 3 itself is not transported by the pharmaceutical industry, but a hose extending along the length of the telescopic rod 3 is mounted inside or outside the telescopic rod 3 through which the liquid medicine is transported.

The conveying and spraying mechanism includes a medicine box 5, a pump 6, a transport tube 7, and a spray head 8. The medicine box 5 and the pump 6 are installed in two carts 1, the pump 6 is installed at the outlet of the medicine box 5, and the outlet of the medicine box 5 is connected to one end of the telescopic rod 3. The transport pipe 7 is erected between the two telescopic rods 3, and the other ends of the two telescopic rods 3 are respectively connected at both ends of the transport pipe 7. The nozzle 8 is a controllable flow nozzle having a plurality of evenly distributed installations on the transport tube 7. Each nozzle 8 has an independent flow control unit 9 therein. When the spray head 8 is outside the hoisting mechanism 12 on both sides, the flow control unit 9 of the spray head 8 is opened, and the spray head 8 can perform work; when the spray head 8 is entangled into the hoisting mechanism 12 on both sides, the flow control unit of the spray head 8 9 is closed, the nozzle 8 does not operate, and the pesticide is prevented from leaking into the hoisting mechanism 12 on both sides.

The transport tube tensioning mechanism includes an upper hoisting mechanism 10, a traction rope 11 and two hoisting mechanisms 12. The upper hoisting mechanism 10 and the traction rope 11 function to pull up or down the transport tube 7, and the function of the hoisting mechanism 12 on both sides is to control the length of the transport tube 7. The upper hoisting mechanism 10 is mounted on the top of the two telescopic rods 3, and the traction ropes 11 have a plurality of traction ropes 11 One end is connected to the upper hoist 10 mechanism, and the other end is fixed at different positions of the transport tube 7, and the length of the traction rope 11 can be retracted under the control of the upper hoisting mechanism 10. The hoisting mechanism 12 on both sides is installed at the junction of the two telescopic rods 3 and the transport pipe 7, and the length of the transport pipe 7 can be retracted under the control of the hoisting mechanism 12 on both sides.

The ranging system includes a distance measuring device 13 and a main control module 14. The distance measuring device 13 and the main control module 14 are mounted on the transport pipe 7 or on the spray head 8. The main control module 14 is electrically connected to the distance measuring device 13 and the telescopic mechanism 4, the upper hoisting mechanism 10, and the hoisting mechanisms 12 on both sides.

Referring to Figures 1 and 2, the working principle of the present invention is as follows:

In the operation of the present invention, the pesticide in the medicine box 5 is hit into the transport pipe 7 by the pump 6, the spray head 8 starts to work, the pesticide is sprayed, and the two cars 1 start to move synchronously. After the height of the crop is fed back through the distance measuring device 13 on the transport pipe 7 (the distance between the distance measuring device and the top surface of the crop), the main control module 14 controls the work of the telescopic mechanism 4, and adjusts the height of the transport pipe 7 up and down to make the transport pipe 7 The distance from the top of the crop is kept constant (for example, 10 cm, which can be adjusted according to the application requirements of different crops and different medicaments).

When the distance between the two carts 1 is similar, the transport tube 7 will sag in the middle, and the traction rope 11 is pulled up by the upper hoisting mechanism 10, and the transport tube 7 is pulled up. However, if only the upper hoist 10 and the traction rope 11 are pulled, the transport pipe 7 will be slightly bent downward by the force of gravity. Therefore, the cooperation of the hoisting mechanism 12 is required, and the length of the transport pipe 7 is controlled by the hoisting mechanism 12 on both sides, so that the transport pipe 7 is tensioned, and the transport pipe 7 is maintained in a straight state at a certain level, while the transport pipe 7 is on the transport pipe 7. Each of the spray heads 8 remains vertically downward.

The white "arrow" in Figure 2 indicates the pesticide transport line, and the black "arrow" indicates the control line.

The above embodiment uses two cars, and the distance between the two cars has a limit value, which cannot be far away. This is because if the two cars are too far apart, the gravity on the transport pipe will be too large. Even if the tensioning mechanism is used, the gravity can be overcome to ensure the tension of the transport tube. Therefore, when facing a larger area of the spraying task, it is necessary to carry out lateral reproduction in units of the structure of the above embodiment, and set three, four or more vehicles in parallel synchronous movement to cover a larger spraying area. .

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present disclosure. All should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

A crop precise spraying system characterized by comprising:

Field walking mechanism, including N (N ≥ 2) cars that can walk in the field;

The height adjustment mechanism comprises N telescopic rods and N telescopic rods respectively mounted vertically on the top of the N trolleys, and the N telescopic mechanisms are respectively mounted on the N telescopic rods, the telescopic rods The length can be expanded and contracted under the control of the telescopic mechanism;

a conveying and spraying mechanism, comprising a medicine box, a pump, a transportation tube and a spray head, wherein the medicine box and the pump are installed in the trolley, a pump is installed at an outlet of the medicine box, and one end of the telescopic rod is connected; the transportation tube is erected Between the telescopic rods, the two ends of the transport tube are respectively connected to the other end of the telescopic rod; the spray head has a plurality of evenly distributed installation on the transport tube;

The ranging system, including the distance measuring device and the main control module, are mounted on the transport tube, and the main control module is electrically connected to the distance measuring device and the telescopic mechanism.
The crop precision spraying system according to claim 1, further comprising: a transport tube tensioning mechanism comprising an upper hoisting mechanism, a traction rope, and two hoisting mechanisms; the upper hoisting mechanism being mounted on the top of the telescopic rod The traction rope has a plurality of wires, one end of which is connected to the upper hoisting mechanism, and the other end is respectively fixed at different positions of the transportation pipe; the length of the traction rope can be retracted under the control of the upper hoisting mechanism The two side hoisting mechanisms are installed at a joint of the telescopic rod and the transport tube, and the length of the transport tube can be retracted under the control of the hoisting mechanisms on both sides.
The crop precise spraying system according to claim 1, characterized in that: N positioning modules for ensuring parallel and synchronous movement of the N cars are respectively installed in the N cars.
The crop precise spraying system according to claim 1, wherein the telescopic rod is an inner hollow sealed waterproof tube, and the chemical liquid is transported inside the telescopic rod; or the telescopic rod is internally or externally mounted A liquid pipe extending along the length of the telescopic rod is transported in the hose.
The crop precise spraying system according to claim 2, wherein: the nozzle has a flow control unit; when the nozzle is outside the two sides of the hoisting mechanism, the flow control unit is opened to perform work; When in the hoisting mechanism on both sides, the flow control unit is closed and no work is performed.