A calibration system, method and equipment for rice unloading hoppers

Abstract

This invention relates to a rice harvester unloading hopper calibration system, method, and equipment, belonging to the field of agricultural machinery technology. The system includes a drive mechanism connected to the unloading hopper, as well as an angle sensing component, a baffle detection component, and a controller. The angle sensing component is located on one side of the unloading hopper's rotation axis, and the baffle detection components are located on both sides of the unloading hopper's return support. The controller is used to acquire the unloading hopper's height and tilt angle information and baffle detection information in real time. Based on these information, it calculates the offset angle of the unloading hopper relative to a preset standard position. The offset angle represents the spatial angular deviation of the unloading hopper from its current position relative to the preset standard position. Based on the offset angle, it determines a compensation angle for the unloading hopper and controls the drive mechanism to rotate and adjust the unloading hopper according to the compensation angle, so that the unloading hopper reaches the preset standard position. This application has the effect of accurately controlling the unloading hopper to return to its position above the unloading hopper support.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to a rice unloading hopper calibration system, method and equipment. Background Technology

[0002] With the significant increase in agricultural mechanization, rice harvesters have become widely used, improving harvesting efficiency and reducing labor intensity to some extent. Rice harvesters perform a series of operations including harvesting, threshing, cleaning, collecting, and unloading of crops.

[0003] In the rice harvester unloading process, after the harvester completes the harvesting and cleaning of crops, unloading is required when the grain bin is full. Because the harvester's grain bin is relatively small, frequent unloading is necessary. Previously, after unloading from the unloading hopper, the operator would directly operate the unloading hopper with a one-button return mechanism, simultaneously starting harvesting again during the return process to improve harvesting efficiency. The common method for operating the unloading hopper is to manually control the return button to return the hopper to the preset position; for unloading hoppers equipped with simple positioning devices, basic positioning information is used to return the hopper to its original position.

[0004] However, due to issues such as interference with the motor encoder's operational accuracy during rotation, errors occur when the unloading hopper returns to its original position. When these errors accumulate to a certain angle, the unloading hopper cannot accurately return to its original position above the unloading hopper support, and may even damage other components, seriously affecting the normal use and operational efficiency of the rice harvester. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a rice unloading hopper calibration system, method and equipment, which aims to solve at least one of the above-mentioned technical problems.

[0006] The technical solution of the present invention to solve the above technical problems is as follows:

[0007] Firstly, this application provides a rice unloading hopper calibration system, which adopts the following technical solution:

[0008] A rice harvester unloading cylinder calibration system includes a drive mechanism connected to the unloading cylinder, and also includes an angle sensing component, a baffle detection component, and a controller. The angle sensing component is disposed on one side of the rotating shaft of the unloading cylinder, and the baffle detection component is disposed on both sides of the return bracket of the unloading cylinder. The drive mechanism, the angle sensing component, and the baffle detection component are all connected to the controller.

[0009] The drive mechanism is used to drive the unloading drum to perform horizontal rotation and vertical lifting actions;

[0010] The angle sensing component is used to detect the height tilt information of the unloading drum in real time and send the height tilt information to the controller. The height tilt information represents the rotation angle of the unloading drum in the vertical direction relative to the initial position.

[0011] The baffle detection component is used to detect the baffle detection information of the unloading drum in real time during the movement process. The baffle detection information represents the positional relationship between the baffle of the unloading drum and the return support.

[0012] The controller is used to acquire the height and tilt angle information and baffle detection information of the unloading hopper in real time. Based on the height and tilt angle information and the baffle detection information, it calculates the offset angle between the unloading hopper and the preset standard position. The offset angle represents the angular deviation of the unloading hopper in space from the preset standard position at the current position. Based on the offset angle of the unloading hopper, it determines the compensation angle of the unloading hopper and controls the drive mechanism to drive the unloading hopper to rotate and adjust according to the compensation angle so that the unloading hopper reaches the preset standard position.

[0013] The beneficial effects of this invention are as follows: the drive mechanism can drive the unloading drum to perform horizontal rotation and vertical lifting actions; the angle sensing component can detect the height and tilt information of the unloading drum in real time and send it to the controller; the baffle detection component can detect the positional relationship between the unloading drum and the baffle of the return support in real time; after obtaining this information, the controller calculates the offset angle of the unloading drum from the preset standard position, and then determines the compensation angle, and controls the drive mechanism to drive the unloading drum to rotate and adjust according to the compensation angle, which ensures the return accuracy of the unloading drum and prevents it from deviating from the support. Moreover, the requirements for the rotation accuracy of the motor are not high, and reasonable compensation values ​​can be set for motors of different precision. It has high cost performance and practicality, the scheme requires little modification, the design and implementation are simple, and it is easy to promote.

[0014] Based on the above technical solution, the present invention can be further improved as follows.

[0015] Furthermore, the baffle detection component includes baffle trigger switches symmetrically arranged on baffles on both sides of the return bracket, such that the baffle trigger switches are symmetrically distributed along the axis of symmetry at the top of the return bracket.

[0016] The beneficial effect of adopting the above-mentioned further solution is that, in the rice unloading drum calibration system, the baffle trigger switches are symmetrically set on the baffles on both sides of the return bracket and symmetrically distributed along the symmetrical axis of the top of the return bracket. This can accurately detect the positional relationship between the unloading drum and the baffle of the return bracket during the movement, and provide the controller with accurate baffle detection information.

[0017] Furthermore, the drive mechanism includes a grain unloading cylinder lifting and lowering assembly, a rotating gear meshing with the horizontal rotating shaft of the grain unloading cylinder, and a grain unloading cylinder rotary motor coaxially connected to the rotating gear. The grain unloading cylinder rotary motor integrates a motor encoder.

[0018] The unloading cylinder lifting and lowering assembly is used to drive the unloading cylinder to perform vertical lifting and lowering movements.

[0019] The unloading drum rotary motor is used to drive the rotary gear to rotate;

[0020] The rotating gear is used to transmit the rotational power generated by the rotating motor of the unloading drum to the unloading drum, so that the unloading drum can rotate in the horizontal direction.

[0021] The beneficial effects of adopting the above-mentioned further solution are as follows: the unloading drum is driven to perform vertical lifting and lowering actions by the unloading drum lifting and lowering assembly, the unloading drum rotary motor can drive the rotary gear to rotate, the rotary gear transmits power to the unloading drum to make it rotate horizontally, the motor encoder feeds back the rotation position, thereby cooperating with the controller to realize the horizontal rotation and vertical lifting and lowering actions of the unloading drum, and providing power support for the calibration of the unloading drum.

[0022] Furthermore, it also includes a touch screen and a control handle, both of which are connected to the controller;

[0023] The touch display screen is used to configure the automatic calibration function and set the offset angle threshold;

[0024] The control handle is used to respond to the user's trigger action to move the unloading drum, obtain a trigger signal, and enable the controller to control the unloading drum to move from the support position to the unloading operation position based on the trigger signal.

[0025] The advantages of adopting the above-mentioned further solutions are: the touch screen can be configured with an automatic calibration function and set an offset angle threshold, which facilitates user operation and parameter adjustment according to actual conditions; the control handle can respond to the unloading hopper movement trigger action to obtain a trigger signal, so that the controller controls the unloading hopper to move from the support position to the unloading operation position, which facilitates the user to control the position movement of the unloading hopper and improves the convenience and flexibility of system operation.

[0026] Furthermore, the controller, when calculating the offset angle between the unloading hopper and the preset standard position based on the height tilt information and the baffle detection information, is specifically used for:

[0027] Based on the baffle detection information, it is determined whether the unloading hopper is in contact with the baffle on either side of the return bracket;

[0028] If the unloading hopper contacts the baffle on either side of the return support, the height of the unloading hopper is calculated based on the height inclination information.

[0029] Based on the height and tilt angle of the unloading hopper, the offset distance of the unloading hopper is calculated;

[0030] Based on the offset distance of the unloading hopper, the offset angle between the unloading hopper and the preset standard position is calculated.

[0031] The beneficial effects of adopting the above-mentioned further solution are as follows: by using the height tilt angle information and baffle detection information, the contact situation between the unloading hopper and the baffle of the return support is first determined. If the unloading hopper is in contact with the baffle on either side of the return support, then the height of the unloading hopper is calculated. Then, the offset distance is calculated based on the height and height tilt angle information. Finally, the offset angle from the preset standard position is calculated, which can accurately determine the positional deviation of the unloading hopper and provide a precise basis for subsequent compensation and adjustment.

[0032] Furthermore, when the controller determines the compensation angle of the unloading hopper based on its offset angle, it is specifically used for:

[0033] Determine whether the offset angle of the unloading hopper is greater than a set offset angle threshold;

[0034] If the offset angle is greater than the set offset angle threshold, then the offset angle is determined to be the compensation angle of the unloading hopper.

[0035] The beneficial effects of adopting the above-mentioned further solution are as follows: the controller determines the offset angle of the unloading hopper as the compensation angle by judging that the offset angle is greater than the set offset angle threshold. This can accurately determine the angle that the unloading hopper needs to compensate for, ensuring that the unloading hopper is promptly compensated and adjusted when the offset angle exceeds the set threshold, so that the unloading hopper accurately returns to the preset standard position. This improves the accuracy of the unloading hopper's return and avoids the problem of the unloading hopper not being able to return to the return bracket or damaging other parts due to inaccurate return, thus ensuring the normal operation of the unloading operation.

[0036] Furthermore, before acquiring the height and tilt angle information of the unloading hopper and the baffle detection information in real time, the controller is also used for:

[0037] Determine whether the engine speed of the rice harvester is greater than the set engine speed threshold, or whether the battery voltage of the rice harvester is greater than the set voltage threshold, and determine whether the angle sensing component and the motor encoder are functioning normally, and determine whether the automatic calibration function of the unloading hopper on the touch screen is activated.

[0038] If the engine speed of the rice harvester is greater than the set engine speed threshold, or the battery voltage of the rice harvester is greater than the set voltage threshold, and the angle sensing component and the motor encoder are functioning normally, and the automatic calibration function of the unloading hopper on the touch screen is activated, then the height tilt angle information and baffle detection information of the unloading hopper are acquired in real time. Based on the height tilt angle information and the baffle detection information, the offset angle of the unloading hopper from the preset standard position is calculated. Based on the offset angle of the unloading hopper, the compensation angle of the unloading hopper is determined, and the drive mechanism is controlled to drive the unloading hopper to rotate and adjust according to the compensation angle.

[0039] The beneficial effects of adopting the above-mentioned further solution are: before acquiring relevant information about the unloading hopper in real time, the rice harvester engine speed, battery voltage, angle sensing components and motor encoder functions, as well as the automatic calibration function of the unloading hopper on the touch screen are judged. Only when the corresponding conditions are met will subsequent operations such as unloading hopper offset angle calculation, compensation angle determination and rotation adjustment be performed, ensuring that the calibration system operates in a suitable working state and avoiding invalid or erroneous calibration operations.

[0040] Furthermore, before acquiring the height and tilt angle information of the unloading hopper and the baffle detection information in real time, the controller is also used for:

[0041] In response to the user's trigger action to manually calibrate the unloading hopper, a manual calibration signal is acquired, and the unloading hopper is calibrated within the support based on the manual calibration signal;

[0042] The control drive mechanism drives the unloading drum to rise to its highest position, and after the unloading drum rises to its highest position, the control drive mechanism drives the unloading drum to rotate horizontally, and the minimum resolution during the horizontal rotation of the unloading drum is taken as the calibration resolution.

[0043] The calibration resolution is sent to the touch screen so that the touch screen displays calibration completion information.

[0044] The beneficial effects of adopting the above-mentioned further solution are: the controller automatically determines and adjusts the calibration resolution, after the handle calibrates the position of the unloading drum, the unloading drum rises to the highest point and then rotates left and right, the minimum stable left and right rotation resolution is analyzed and calculated, and the calibration is displayed on the screen. This action is completed with the manual calibration of the unloading drum, which improves the return accuracy of the unloading drum.

[0045] Secondly, this application provides a method for calibrating a rice unloading hopper, which adopts the following technical solution:

[0046] A method for calibrating a rice unloading hopper includes:

[0047] The height and tilt angle information of the unloading hopper and the baffle detection information are acquired in real time. The height and tilt angle information represents the rotation angle of the unloading hopper in the vertical direction relative to its initial position, and the baffle detection information represents the positional relationship between the unloading hopper and the baffle of the return support.

[0048] Based on the height tilt information and the baffle detection information, the offset angle between the unloading drum and the preset standard position is calculated. The offset angle represents the angular deviation of the unloading drum in space relative to the preset standard position at the current position.

[0049] Based on the offset angle of the unloading drum, the compensation angle of the unloading drum is determined, and the driving mechanism of the unloading drum is controlled to drive the unloading drum to rotate and adjust according to the compensation angle so that the unloading drum reaches the preset standard position.

[0050] Thirdly, this application provides an electronic device that adopts the following technical solution:

[0051] An electronic device includes a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executed the rice unloading hopper calibration method described in the second aspect.

[0052] Additional aspects and advantages of this application will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of this application. Attached Figure Description

[0053] Figure 1 This is a schematic diagram of a rice unloading drum calibration system according to an embodiment of the present invention;

[0054] Figure 2 This is a schematic diagram illustrating the positions of the unloading hopper and the return support, provided as an embodiment of the present invention;

[0055] Figure 3 A schematic flowchart illustrating a method for calibrating a rice unloading drum according to an embodiment of the present invention;

[0056] Figure 4 This is a schematic diagram of the structure of an electronic device provided in one embodiment of the present invention.

[0057] Reference numerals in the attached diagram: 1. Rotary gear; 2. Rotary motor for unloading hopper; 3. Unloading hopper; 4. Controller; 5. Control handle; 6. Up and down lifting assembly for unloading hopper; 7. Angle sensing assembly; 8. Touch screen display; 9. Baffle detection assembly; 10. Both sides of the return bracket. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0059] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article, unless otherwise specified, generally indicates that the preceding and following related objects have an "or" relationship.

[0060] like Figure 1 As shown, a rice harvester unloading cylinder calibration system includes a drive mechanism connected to the unloading cylinder 3, an angle sensing component 7, a baffle detection component 9, and a controller 4. The angle sensing component 7 is located on one side of the rotating shaft of the unloading cylinder 3, and the baffle detection component 9 is located on both sides 10 of the return bracket of the unloading cylinder 3. The drive mechanism, the angle sensing component 7, and the baffle detection component 9 are all connected to the controller 4. Through the coordinated operation of these components, relevant information of the unloading cylinder 3 can be acquired and analyzed in real time, achieving the effect of accurately detecting and calibrating the positional deviation of the unloading cylinder 3.

[0061] The drive mechanism is used to drive the unloading drum 3 to perform horizontal rotation and vertical lifting actions.

[0062] Angle sensing component 7 is used to detect the height tilt angle information of unloading drum 3 in real time and send the height tilt angle information to controller 4. The height tilt angle information represents the rotation angle of unloading drum 3 in the vertical direction relative to the initial position.

[0063] The baffle detection component 9 is used to detect the baffle detection information of the unloading drum 3 in real time during the movement process. The baffle detection information represents the positional relationship between the unloading drum 3 and the baffle of the return support.

[0064] The controller 4 is used to acquire the height and tilt angle information and baffle detection information of the unloading hopper 3 in real time. Based on the height and tilt angle information and the baffle detection information, it calculates the offset angle of the unloading hopper 3 from the preset standard position. The offset angle represents the angular deviation of the unloading hopper 3 in space from the preset standard position. Based on the offset angle of the unloading hopper 3, it determines the compensation angle of the unloading hopper 3 and controls the drive mechanism to drive the unloading hopper 3 to rotate and adjust according to the compensation angle so that the unloading hopper 3 reaches the preset standard position.

[0065] In this embodiment of the application, the driving mechanism includes a grain unloading cylinder lifting and lowering assembly 6, a rotating gear 1 meshing with the horizontal rotating shaft of the grain unloading cylinder 3, and a grain unloading cylinder rotary motor 2 coaxially connected to the rotating gear 1. The grain unloading cylinder rotary motor 2 integrates a motor encoder.

[0066] The unloading drum lifting assembly 6 is used to drive the unloading drum 3 to perform vertical lifting movements;

[0067] The unloading drum rotary motor 2 is used to drive the rotary gear 1 to rotate;

[0068] Rotary gear 1 is used to transmit the rotational power generated by the unloading drum rotary motor 2 to the unloading drum 3, so that the unloading drum 3 can rotate in the horizontal direction.

[0069] The unloading hopper lifting assembly 6 can be a hydraulic lifting device, which uses changes in hydraulic oil pressure to achieve the vertical lifting action of the unloading hopper 3, or it can be an electric screw lifting mechanism, where a motor drives the screw to rotate, thus moving the unloading hopper 3 up and down. A motor encoder provides real-time feedback of the motor's rotational position information to the controller 4. The unloading hopper lifting assembly 6 is securely connected to the unloading hopper 3 via connectors. The rotating gear 1 is tightly meshed with the horizontal rotation shaft of the unloading hopper 3. The unloading hopper rotary motor 2 is coaxially connected to the rotating gear 1 via a coupling, ensuring effective power transmission and enabling the drive mechanism to flexibly drive the unloading hopper 3 to perform horizontal rotation and vertical lifting actions.

[0070] The angle sensing assembly 7 includes multiple angle sensors positioned near the rotating shaft of the unloading hopper 3. The angle sensors are fixed to one side of the rotating shaft of the unloading hopper 3 via mounting brackets, and can detect the height and tilt angle of the unloading hopper 3 in real time, sending this information to the controller 4.

[0071] The baffle detection assembly 9 includes baffle trigger switches symmetrically arranged on the baffles 10 on both sides of the return bracket. The baffle trigger switches can be microswitches, which generate an electrical signal when the unloading hopper 3 contacts the baffle; or they can be proximity switches, which emit a signal by detecting the proximity of the unloading hopper 3 to the baffle. The baffle trigger switches are symmetrically distributed along the axis of symmetry at the top of the return bracket, enabling accurate detection of baffle information during the movement of the unloading hopper 3, i.e., the positional relationship between the unloading hopper 3 and the baffle of the return bracket.

[0072] In this embodiment, the rice unloading drum calibration system further includes a touch screen 8 and a control handle 5, both of which are connected to the controller 4. The touch screen 8 is used to configure the automatic calibration function and set the offset angle threshold. The control handle 5 is used to respond to the user's trigger action on the movement of the unloading drum 3, obtain a trigger signal, and enable the controller 4 to control the unloading drum 3 to move from the support position to the unloading operation position based on the trigger signal.

[0073] The touch screen 8 can be configured with an automatic calibration function and a set offset angle threshold, which facilitates user operation and parameter adjustment according to actual conditions; the control handle 5 can respond to the movement trigger action of the unloading drum 3 to obtain a trigger signal, so that the controller 4 controls the unloading drum 3 to move from the support position to the unloading operation position, which facilitates the user to control the position movement of the unloading drum 3 and improves the convenience and flexibility of system operation.

[0074] Optional, such as Figure 2 As shown, the controller 4, when calculating the offset angle between the unloading hopper 3 and the preset standard position based on the height tilt information and the baffle detection information, is specifically used for:

[0075] Based on the baffle detection information, it is determined whether the unloading hopper 3 is in contact with the baffle on either side of the return bracket;

[0076] If the unloading drum 3 comes into contact with the baffle on either side of the return bracket, the height of the unloading drum 3 is calculated based on the height tilt information.

[0077] Based on the height and tilt angle of the unloading hopper 3, the offset distance of the unloading hopper 3 is calculated;

[0078] Based on the offset distance of the unloading drum 3, the offset angle between the unloading drum 3 and the preset standard position is calculated.

[0079] In this embodiment of the application, the controller 4, when determining the compensation angle of the unloading cylinder 3 based on the offset angle of the unloading cylinder 3, is specifically used for:

[0080] Determine whether the offset angle of the unloading hopper 3 is greater than the set offset angle threshold;

[0081] If the offset angle is greater than the set offset angle threshold, then the offset angle is determined to be the compensation angle of the unloading drum 3.

[0082] When the unloading hopper 3 completes the unloading operation and begins to return to its original position within the support, the vertical angle sensor measures the angle θ of the unloading hopper 3 relative to the horizontal plane in real time and continuously transmits the measurement data to the controller 4. During the descent of the unloading hopper 3, if its left and right positions are inaccurate, it may hit a baffle on one side of the support. When the unloading hopper 3 hits the baffle, it will exert a pressing force on the baffle. The baffle sensor detects this pressing signal and immediately transmits the signal to the controller 4.

[0083] After receiving the real-time angle θ transmitted by the upper and lower angle sensors, controller 4 calculates the height AC of unloading hopper 3 based on the known projected length L of unloading hopper 3 in the horizontal direction. Then, it calculates the offset distance A'E' of unloading hopper 3 according to a preset distance formula. The preset distance formula is as follows:

[0084] A'E'=tan(θ1)×AC= tan(θ1)×tanθ×L;

[0085] Then, the required compensation angle is determined by distance = tan(θ1) × tanθ × 180° / π.

[0086] In this embodiment of the application, before the controller 4 is used to acquire the height and tilt angle information and baffle detection information of the unloading hopper 3 in real time, it is also specifically used for:

[0087] Determine whether the engine speed of the rice harvester is greater than the set engine speed threshold, or whether the battery voltage of the rice harvester is greater than the set voltage threshold, and determine whether the functions of the angle sensing component 7 and the motor encoder are normal, and determine whether the automatic calibration function of the unloading hopper 3 of the touch screen 8 is activated.

[0088] If the engine speed of the rice harvester is greater than the set engine speed threshold, or the battery voltage of the rice harvester is greater than the set voltage threshold, and the angle sensing component 7 and the motor encoder are functioning normally, and the automatic calibration function of the unloading hopper 3 on the touch screen 8 is activated, then the height tilt angle information and baffle detection information of the unloading hopper 3 are acquired in real time. Based on the height tilt angle information and the baffle detection information, the offset angle of the unloading hopper 3 from the preset standard position is calculated. Based on the offset angle of the unloading hopper 3, the compensation angle of the unloading hopper 3 is determined, and the drive mechanism is controlled to drive the unloading hopper 3 to rotate and adjust according to the compensation angle.

[0089] Before acquiring relevant information about the unloading hopper 3 in real time, the system assesses the rice harvester's engine speed, battery voltage, angle sensor component 7, motor encoder function, and the automatic calibration function of the unloading hopper 3 on the touch screen 8. Only when the corresponding conditions are met will subsequent operations such as unloading hopper 3 offset angle calculation, compensation angle determination, and rotation adjustment be performed. This ensures that the calibration system operates under appropriate working conditions and avoids invalid or erroneous calibration operations.

[0090] In this embodiment of the application, before the controller 4 is used to acquire the height and tilt angle information and baffle detection information of the unloading hopper 3 in real time, it is also specifically used for:

[0091] In response to the user's trigger action to manually calibrate the unloading hopper 3, a manual calibration signal is acquired, and the unloading hopper 3 is calibrated within the support based on the manual calibration signal;

[0092] The control drive mechanism drives the unloading cylinder 3 to rise to its highest position. After the unloading cylinder 3 rises to its highest position, the control drive mechanism drives the unloading cylinder 3 to rotate horizontally. The minimum resolution during the horizontal rotation of the unloading cylinder 3 is taken as the calibration resolution.

[0093] The calibration resolution is sent to the touch display screen 8 so that the touch display screen 8 displays calibration completion information.

[0094] In this embodiment, the first calibration requires manual calibration. After manually calibrating the up, down, left, and right positions within the unloading hopper 3 support, the left and right rotation resolution is determined. As long as no manual calibration is performed subsequently, the minimum resolution of the left and right rotation of the mechanical structure will not change until the next manual calibration action.

[0095] The controller 4 automatically determines and adjusts the calibration resolution. After the handle calibrates the position of the unloading drum 3, the unloading drum 3 rises to the highest point and then rotates left and right. The minimum resolution for stable left and right rotation is analyzed and calculated, and the calibration is displayed on the screen. This action is completed as the manual calibration of the unloading drum 3 is completed, improving the return accuracy of the unloading drum 3.

[0096] This system uses a drive mechanism to drive the unloading hopper 3 to perform horizontal rotation and vertical lifting. Angle sensing component 7 can detect the height and tilt information of the unloading hopper 3 in real time and send it to controller 4. Baffle detection component 9 can detect the positional relationship between the unloading hopper 3 and the return support baffle in real time. After obtaining this information, controller 4 calculates the offset angle of the unloading hopper 3 from the preset standard position, determines the compensation angle, and controls the drive mechanism to drive the unloading hopper 3 to rotate and adjust according to the compensation angle. This ensures the return accuracy of the unloading hopper 3 and prevents it from deviating from the support. It also does not have high requirements for the rotation accuracy of the motor. Reasonable compensation values ​​can be set for motors with different precision. It has high cost performance and practicality. The scheme requires little modification, is simple to design and implement, and is easy to promote.

[0097] Figure 3 This is a flowchart illustrating a method for calibrating a rice unloading hopper according to an embodiment of this application.

[0098] like Figure 3 As shown, a method for calibrating a rice unloading hopper mainly includes:

[0099] S201, real-time acquisition of the height and tilt angle information of the unloading hopper and the baffle detection information, wherein the height and tilt angle information represents the rotation angle of the unloading hopper in the vertical direction relative to the initial position, and the baffle detection information represents the positional relationship between the unloading hopper and the baffle of the return support.

[0100] S202, based on the height tilt information and the baffle detection information, calculate the offset angle between the unloading drum and the preset standard position. The offset angle represents the angular deviation of the unloading drum in space relative to the preset standard position at the current position.

[0101] S203, based on the offset angle of the unloading drum, determine the compensation angle of the unloading drum, and control the driving mechanism of the unloading drum to drive the unloading drum to rotate and adjust according to the compensation angle so that the unloading drum reaches the preset standard position.

[0102] It should be noted that the execution subject of this method can be a controller, and its implementation principle is the same as that of a rice unloading hopper calibration system described above, which will not be repeated here.

[0103] Figure 4 This is a structural block diagram of an electronic device 300 according to an embodiment of this application.

[0104] like Figure 4 As shown, the electronic device 300 includes a processor 301 and a memory 302, and may further include one or more of an information input / output (I / O) interface 303, a communication component 304, and a communication bus 305.

[0105] The processor 301 controls the overall operation of the electronic device 300 to complete all or part of the steps in the above-described rice unloading drum calibration method. The memory 302 stores various types of data to support the operation of the electronic device 300. This data may include, for example, instructions for any application or method operating on the electronic device 300, as well as application-related data. The memory 302 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as one or more of Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0106] I / O interface 303 provides an interface between processor 301 and other interface modules, such as keyboards, mice, and buttons. These buttons can be virtual or physical. Communication component 304 is used to test wired or wireless communication between electronic device 300 and other devices. Wireless communication includes Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, or 4G, or a combination thereof. Therefore, the corresponding communication component 304 may include a Wi-Fi component, a Bluetooth component, and an NFC component.

[0107] The communication bus 305 may include a path for transmitting information between the aforementioned components. The communication bus 305 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. The communication bus 305 may be divided into an address bus, a data bus, a control bus, etc.

[0108] The electronic device 300 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the rice unloading drum calibration method given in the above embodiments.

[0109] The terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0110] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the foregoing application concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions claimed in this application.

Claims

1. A rice unloading hopper calibration system, characterized in that, The unloading drum (3) includes a drive mechanism connected to the unloading drum (3), an angle sensing component (7), a baffle detection component (9), and a controller (4). The angle sensing component (7) is located on one side of the rotating shaft of the unloading drum (3), and the baffle detection component (9) is located on both sides (10) of the return bracket of the unloading drum (3). The drive mechanism, the angle sensing component (7), and the baffle detection component (9) are all connected to the controller (4). The drive mechanism is used to drive the unloading drum (3) to perform horizontal rotation and vertical lifting actions; The angle sensing component (7) is used to detect the height tilt information of the unloading drum (3) in real time and send the height tilt information to the controller (4). The height tilt information represents the rotation angle of the unloading drum (3) in the vertical direction relative to the initial position. The baffle detection component (9) is used to detect the baffle detection information of the unloading drum (3) in real time during the movement process. The baffle detection information represents the positional relationship between the unloading drum (3) and the baffle of the return support. The controller (4) is used to acquire the height tilt information and baffle detection information of the unloading drum (3) in real time. Based on the height tilt information and the baffle detection information, the controller calculates the offset angle between the unloading drum (3) and the preset standard position. The offset angle represents the angular deviation of the unloading drum (3) in space relative to the preset standard position at the current position. Based on the offset angle of the unloading cylinder (3), the compensation angle of the unloading cylinder (3) is determined, and the driving mechanism is controlled to drive the unloading cylinder (3) to rotate and adjust according to the compensation angle so that the unloading cylinder (3) reaches the preset standard position. The controller (4), when calculating the offset angle between the unloading hopper (3) and the preset standard position based on the height tilt information and the baffle detection information, is specifically used for: Based on the baffle detection information, determine whether the unloading drum (3) is in contact with the baffle on either side of the return bracket; If the unloading drum (3) contacts the baffle on either side of the return bracket, the height of the unloading drum (3) is calculated based on the height tilt information. Based on the height and the height inclination information of the unloading hopper (3), the offset distance of the unloading hopper (3) is calculated; Based on the offset distance of the unloading drum (3), calculate the offset angle between the unloading drum (3) and the preset standard position; The controller (4), when determining the compensation angle of the unloading cylinder (3) based on the offset angle of the unloading cylinder (3), is specifically used for: Determine whether the offset angle of the unloading hopper (3) is greater than the set offset angle threshold; If the offset angle is greater than the set offset angle threshold, then the offset angle is determined to be the compensation angle of the unloading drum (3).

2. The rice unloading hopper calibration system according to claim 1, characterized in that, The baffle detection component (9) includes baffle trigger switches symmetrically arranged on baffles on both sides (10) of the return bracket, such that the baffle trigger switches are symmetrically distributed along the axis of symmetry at the top of the return bracket.

3. The rice unloading hopper calibration system according to claim 1, characterized in that, The drive mechanism includes a grain unloading cylinder lifting assembly (6), a rotating gear (1) meshing with the horizontal rotating shaft of the grain unloading cylinder (3), and a grain unloading cylinder rotary motor (2) coaxially connected with the rotating gear (1). The grain unloading cylinder rotary motor (2) integrates a motor encoder. The unloading cylinder lifting assembly (6) is used to drive the unloading cylinder (3) to perform vertical lifting and lowering movements; The unloading drum rotary motor (2) is used to drive the rotary gear (1) to rotate; The rotating gear (1) is used to transmit the rotational power generated by the unloading drum rotary motor (2) to the unloading drum (3), so that the unloading drum (3) can rotate in the horizontal direction.

4. The rice unloading hopper calibration system according to claim 3, characterized in that, It also includes a touch screen (8) and a control handle (5), both of which are connected to the controller (4); The touch display screen (8) is used to configure the automatic calibration function and set the offset angle threshold; The control handle (5) is used to respond to the user's trigger action to move the unloading drum (3), obtain a trigger signal, and enable the controller (4) to control the unloading drum (3) to move from the support position to the unloading operation position based on the trigger signal.

5. The rice unloading hopper calibration system according to claim 4, characterized in that, Before acquiring the height and tilt information of the unloading hopper (3) and the baffle detection information in real time, the controller (4) is also used for: Determine whether the engine speed of the rice harvester is greater than the set engine speed threshold, or determine whether the battery voltage of the rice harvester is greater than the set voltage threshold, and determine whether the functions of the angle sensing component (7) and the motor encoder are normal, and determine whether the automatic calibration function of the unloading drum (3) on the touch screen (8) is activated. If the engine speed of the rice harvester is greater than the set engine speed threshold, or the battery voltage of the rice harvester is greater than the set voltage threshold, and the angle sensing component (7) and the motor encoder are functioning normally, and the automatic calibration function of the unloading drum (3) on the touch screen (8) is activated, then the height tilt information and baffle detection information of the unloading drum (3) are obtained in real time. Based on the height tilt information and the baffle detection information, the offset angle of the unloading drum (3) from the preset standard position is calculated. Based on the offset angle of the unloading drum (3), the compensation angle of the unloading drum (3) is determined, and the drive mechanism is controlled to drive the unloading drum (3) to rotate and adjust according to the compensation angle.

6. The rice unloading hopper calibration system according to claim 5, characterized in that, Before acquiring the height and tilt information of the unloading hopper (3) and the baffle detection information in real time, the controller (4) is also used for: In response to the user's trigger action to manually calibrate the unloading hopper (3), a manual calibration signal is acquired, and the unloading hopper (3) is calibrated in the bracket based on the manual calibration signal; The control drive mechanism drives the unloading cylinder (3) to rise to the highest position of the unloading cylinder, and after the unloading cylinder (3) rises to the highest position of the unloading cylinder, the control drive mechanism drives the unloading cylinder (3) to rotate horizontally, and the minimum resolution during the horizontal rotation of the unloading cylinder (3) is taken as the calibration resolution. The calibration resolution is sent to the touch screen (8) so that the touch screen (8) displays calibration completion information.

7. A method for calibrating a rice unloading hopper in a rice harvester calibration system as described in claim 1, characterized in that, include: The height and tilt angle information of the unloading hopper and the baffle detection information are acquired in real time. The height and tilt angle information represents the rotation angle of the unloading hopper in the vertical direction relative to its initial position, and the baffle detection information represents the positional relationship between the unloading hopper and the baffle of the return support. Based on the height tilt information and the baffle detection information, the offset angle between the unloading drum and the preset standard position is calculated. The offset angle represents the angular deviation of the unloading drum in space relative to the preset standard position at the current position. Based on the offset angle of the unloading drum, the compensation angle of the unloading drum is determined, and the driving mechanism of the unloading drum is controlled to drive the unloading drum to rotate and adjust according to the compensation angle so that the unloading drum reaches the preset standard position. Based on the height tilt angle information and the baffle detection information, the offset angle between the unloading hopper and the preset standard position is calculated, including: Based on the baffle detection information, it is determined whether the unloading hopper is in contact with the baffle on either side of the return bracket; If the unloading hopper contacts the baffle on either side of the return support, the height of the unloading hopper is calculated based on the height inclination information. Based on the height and tilt angle of the unloading hopper, the offset distance of the unloading hopper is calculated; Based on the offset distance of the unloading hopper, calculate the offset angle between the unloading hopper and the preset standard position; Based on the offset angle of the unloading hopper, the compensation angle of the unloading hopper is determined, including: Determine whether the offset angle of the unloading hopper is greater than a set offset angle threshold; If the offset angle is greater than the set offset angle threshold, then the offset angle is determined to be the compensation angle of the unloading hopper.

8. An electronic device, characterized in that, Includes a processor, which is coupled to a memory; The processor is configured to execute a computer program stored in the memory, so that the electronic device performs the method as described in claim 7.

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