A calibration device for an electrically controlled handle

Abstract

The utility model belongs to the technical field of agricultural electrical control handle, specifically relates to a kind of calibration device of electrical control handle, including walking handle position sensor, steering handle position sensor, header height sensor, controller and display screen, walking handle position sensor is used to detect the position of walking handle, steering handle position sensor is used to detect the position of steering handle, header height sensor is used to detect header height, display screen is used to show handle current position, header current height and calibration data, controller is connected with display screen communication by CAN bus, controller is used to receive calibration data sent by display screen and save.The utility model does not need to mark the control strategy respectively, this calibration method is flexible and convenient, time-consuming is short, and the operating technical quality requirement of driver is low, improves agricultural machinery operating efficiency, compared with original operation, it is more convenient, low in cost, changes little, and high in efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery electronic control handle technology, specifically relating to a calibration device for an electronic control handle. Background Technology

[0002] With the booming development of modern agriculture and the continuous improvement of agricultural mechanization, the importance of the agricultural machinery electric control handle, as the core control component of modern agricultural machinery, is becoming increasingly prominent. It uses electrical signals, such as voltage, current or CAN bus data, to accurately convert the operator's operation into control commands for the agricultural machinery's actuators, thereby achieving precise control of key actions such as steering, walking, and lifting of the cutting platform. It is a key link to ensure the efficient and stable operation of agricultural machinery.

[0003] For the calibration process, it is the core step to ensure that the electric control handle accurately controls the agricultural machinery. In actual operation, due to the influence of various factors such as manufacturing process and usage environment, the input signal of the electric control handle often has deviation. If calibration is not performed, this deviation will cause the signal received by the controller to be inconsistent with the actual operation intention of the operator, making the agricultural machinery actuator unable to make a correct response, which will seriously affect the operating accuracy and operation quality of the agricultural machinery. For example, when carrying out precision farmland operations, a small deviation of the steering handle may cause the agricultural machinery to deviate from the predetermined operation trajectory, which will not only reduce the operation efficiency, but may also cause damage to crops.

[0004] However, the current traditional electric control handle calibration technology has many undeniable defects. From the perspective of operation process, traditional calibration relies heavily on manual input of data on the display screen. This process is not only cumbersome and complicated, requiring operators to strictly follow the established steps and formats for input, which consumes a lot of time and energy, but is also prone to errors. Once incorrect data is input, the subsequent agricultural machinery control based on this incorrect data will inevitably deviate, bringing potential risks to agricultural machinery operations.

[0005] From the perspective of operator requirements, traditional calibration methods demand a high level of technical expertise from operators. Operators must not only be familiar with the overall structure and working principle of agricultural machinery, but also accurately master the specific calibration process and parameter settings. However, in actual agricultural production scenarios, the skill levels of agricultural machinery operators vary, and most ordinary users find it difficult to complete the calibration work independently. When multiple handles need to be calibrated simultaneously, the problem becomes even more prominent. Due to the differences in the functions and operating methods of different handles, operators can easily confuse the positions of the handles and their corresponding calibration parameters, leading to calibration errors and further affecting the normal operation and safety of agricultural machinery.

[0006] In terms of intelligence, traditional electric control handle calibration lacks intelligent means. It cannot automatically calibrate and optimize parameters based on the actual operation of the handle, and relies entirely on manual judgment and intervention. This is seriously out of step with the general trend of intelligent agricultural development and cannot meet the needs of modern efficient and precise agricultural production.

[0007] With the rapid development of intelligent agricultural technology, the requirements for the precision and safety of agricultural machinery operation are becoming increasingly stringent. Traditional electronic control handle calibration technology, due to its various drawbacks, has become a bottleneck restricting the advancement of agricultural mechanization to a higher level. Against this backdrop, the development of a calibration device that is easy to operate, highly intelligent, and capable of accurately acquiring the handle's limit and median values ​​is urgently needed. This is of significant practical importance for improving the efficiency of agricultural machinery operations and promoting the modernization of agriculture. Utility Model Content

[0008] The purpose of this invention is to provide a calibration device for an electric control handle that eliminates the need for separate calibration of control strategies. This calibration method is flexible, convenient, and time-saving, requires less skill from the driver, improves the efficiency of agricultural machinery operations, and is more convenient, cost-effective, requires fewer modifications, and is highly efficient compared to previous methods.

[0009] The specific technical solution adopted by this utility model is as follows:

[0010] A calibration device for an electric control handle includes a travel handle position sensor, a steering handle position sensor, a cutting table height sensor, a controller, and a display screen;

[0011] The walking handle position sensor is used to detect the position of the walking handle;

[0012] The steering handle position sensor is used to detect the position of the steering handle;

[0013] The cutting table height sensor is used to detect the cutting table height;

[0014] The display screen is used to display the current position of the handle, the current height of the cutting table, and the calibration data. The controller is connected to the display screen via a CAN bus and is used to receive and save the calibration data sent by the display screen.

[0015] The output signals of the travel handle position sensor, the steering handle position sensor, and the cutter height sensor are all connected to the controller.

[0016] The calibrated data includes the center value, forward limit value, and backward limit value of the travel handle; the center value, left turn limit value, and right turn limit value of the steering handle; and the highest and lowest values ​​of the cutter height.

[0017] The display screen supports inputting changes to the calibrated data.

[0018] The controller receives the detection signal from the walking handle position sensor and generates the current position data of the walking handle, which is then sent to the display screen for real-time display via the CAN bus.

[0019] After receiving the calibration command input by the user, the display screen sends the recorded midpoint value of the walking handle, forward limit value, and backward limit value to the controller via the CAN bus. The controller then updates and saves the above data.

[0020] The detection signals from the steering handle position sensor and the cutter height sensor are respectively connected to the controller via signal lines.

[0021] The display screen and the controller communicate via a CAN bus.

[0022] The technical effects achieved by this utility model are as follows:

[0023] This invention allows for convenient acquisition of the handle's limit and midpoint values ​​via an operating handle, eliminating the need for separate control strategies. This calibration method is flexible, convenient, and time-efficient, requiring less skill from the operator and improving the efficiency of agricultural machinery operations. Structurally, it requires no modifications to the mechanical transmission components of the original structure, making it more convenient, cost-effective, and efficient compared to previous methods. Attached Figure Description

[0024] Figure 1 This is a system diagram of the entire utility model. Detailed Implementation

[0025] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0026] like Figure 1 As shown, a calibration device for an electric control handle includes a travel handle position sensor, a steering handle position sensor, a cutting table height sensor, a controller, and a display screen.

[0027] The travel handle position sensor is used to detect the position of the travel handle;

[0028] The steering lever position sensor is used to detect the position of the steering lever;

[0029] The header height sensor is used to detect the header height;

[0030] The travel handle position sensor, steering handle position sensor, and cutting table height sensor can be fixed to the travel handle, steering handle, and cutting table lifting mechanism, respectively, to detect the handle position or cutting table height in real time.

[0031] The display screen shows the current position of the handle, the current height of the cutting table, and the calibrated data. The calibrated data includes the center value, forward limit value, and backward limit value of the travel handle, the center value, left turn limit value, and right turn limit value of the steering handle, as well as the highest and lowest values ​​of the cutting table height. The controller communicates with the display screen via a CAN bus. The controller receives and saves the calibration data sent by the display screen. The display screen supports inputting changes to the calibrated data.

[0032] The output signals of the travel handle position sensor, steering handle position sensor, and cutter height sensor are all connected to the controller. The controller receives the detection signal from the travel handle position sensor and generates the current position data of the travel handle. It is then sent to the display screen for real-time display via the CAN bus. The controller can be a microcontroller, and its input terminals are connected to the travel handle position sensor, steering handle position sensor, and cutter height sensor respectively via signal lines to receive the voltage signals or digital signals output by the sensors.

[0033] After receiving the calibration command input by the user, the display screen sends the recorded center value, forward limit value, and backward limit value of the travel handle to the controller via the CAN bus. The controller updates and saves the above data. Furthermore, the detection signals of the steering handle position sensor and the cutter height sensor are connected to the controller via signal lines. In addition, the display screen and the controller realize data interaction via the CAN bus. The interaction data includes the handle position detection value, the cutter height detection value, and the calibrated limit and center values. The display screen can be an LCD screen with touch function, which communicates bidirectionally with the controller via the CAN bus to display real-time data and calibration interaction.

[0034] The calibration steps for the handle are as follows, taking the walking handle as an example:

[0035] S1: After the display screen is powered on, it enters the main interface and displays "Current position of travel handle", "Current position of steering handle" and "Current height of cutting table". The user clicks the "Calibration" button to enter the travel handle calibration interface. The interface displays the guiding text: Please place the travel handle in the stop center position and click "Enter Calibration".

[0036] S2: The user pushes the walking handle to the stop position and clicks the "Enter Calibration" button on the display screen. At this time, the controller sends the detection value of the current walking handle position sensor to the display screen through the CAN bus. The display screen records this value as the midpoint value of the walking handle.

[0037] S3: The interface prompts: "Please slowly push the handle forward to the limit position and keep it still until the prompt indicates completion." When the user pushes the handle forward to the maximum position in the forward direction, the voltage output of the handle position sensor gradually increases. When the handle position exceeds the "midpoint value + set dead zone range", the controller continuously monitors the sensor signal. If the handle position remains unchanged for more than 2 seconds, the display records the current value as the forward limit value.

[0038] S4: The interface prompts: "Please slowly pull the handle back to the limit position and hold it until the prompt is complete." When the user pulls the handle back to the maximum position in the backward direction, the sensor output voltage gradually decreases. Similarly, when the position exceeds the "median value - set dead zone range" and remains unchanged for 2 seconds, the display records the current value as the backward limit value.

[0039] S5: When the user puts the handle back to the center position and clicks the "Save" button, the display sends a CAN message containing the center value, forward limit value, and backward limit value to the controller via the CAN bus. After receiving the message, the controller stores the data and sends an acknowledgment message to the display. The display then updates to show "Walking handle calibration complete". At the same time, the controller feeds back the new data to the display via the CAN bus for later viewing or modification.

[0040] The calibration of the steering handle and the cutting table height is similar to that described above, and will not be repeated here.

[0041] This application allows for convenient acquisition of the handle's limit and midpoint values ​​via an operating handle, eliminating the need for separate control strategies. This calibration method is flexible, convenient, and time-efficient, requiring less skill from the operator and improving the efficiency of agricultural machinery operations. Structurally, it requires no modifications to the mechanical transmission components of the existing structure, making it more convenient, cost-effective, and efficient compared to previous methods.

[0042] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A calibration device for an electronically controlled handle, characterized in that: Includes a travel handle position sensor, a steering handle position sensor, a cutter height sensor, a controller, and a display screen; The walking handle position sensor is used to detect the position of the walking handle; The steering handle position sensor is used to detect the position of the steering handle; The cutting table height sensor is used to detect the cutting table height; The display screen is used to display the current position of the handle, the current height of the cutting table, and the calibration data. The controller is connected to the display screen via a CAN bus and is used to receive and save the calibration data sent by the display screen. The output signals of the travel handle position sensor, the steering handle position sensor, and the cutter height sensor are all connected to the controller.

2. The calibration device for an electronically controlled handle according to claim 1, characterized in that: The calibrated data includes the center value, forward limit value, and backward limit value of the travel handle; the center value, left turn limit value, and right turn limit value of the steering handle; and the highest and lowest values ​​of the cutter height.

3. The calibration device for an electronically controlled handle according to claim 2, characterized in that: The display screen supports inputting changes to the calibrated data.

4. The calibration device for an electronically controlled handle according to claim 2, characterized in that: The controller receives the detection signal from the walking handle position sensor and generates the current position data of the walking handle, which is then sent to the display screen for real-time display via the CAN bus. After receiving the calibration command input by the user, the display screen sends the recorded midpoint value of the walking handle, forward limit value, and backward limit value to the controller via the CAN bus. The controller then updates and saves the above data.

5. The calibration device for an electronically controlled handle according to claim 1, characterized in that: The detection signals from the steering handle position sensor and the cutter height sensor are respectively connected to the controller via signal lines.

6. The calibration device for an electronically controlled handle according to claim 1, characterized in that: The display screen and the controller communicate via a CAN bus.

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