Agricultural machine efficient calibration system based on central control screen

Abstract

The invention relates to an agricultural machine efficient calibration system based on a central control screen, and belongs to the field of agricultural machine calibration, the system comprises a central control screen and an automatic gearbox TCU controller, and the central control screen is provided with a sensor threshold calibration interface and an electromagnetic valve control current calibration interface; the central control screen is used for sending a message to the TCU controller of the automatic gearbox; and the TCU controller of the automatic gearbox uniformly manages all calibration parameters set by the central control screen by adopting an array, and sends an electromagnetic valve feedback message and a sensor feedback message to the central control screen so as to realize calibration of the electromagnetic valve and the sensor. According to the system, the calibration difficulty and the calibration labor cost can be reduced, and the calibration efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of agricultural machinery calibration, and particularly relates to an agricultural machinery efficient calibration system based on a central control screen. BACKGROUND

[0002] Most of the traditional agricultural machinery calibration methods are manually operated, and parameters are adjusted by technicians according to experience. The traditional methods have the following defects:

[0003] (1) manual operation is relied on, and calibration efficiency is low;

[0004] (2) special calibration equipment needs to be provided for agricultural machinery calibration;

[0005] (3) high professional knowledge is required for personnel;

[0006] (4) specific parameters of a gearbox change greatly with the performance degradation of each component. SUMMARY

[0007] In view of the above deficiencies of the prior art, the purpose of the present application is to provide an agricultural machinery efficient calibration system based on a central control screen, which reduces the calibration difficulty and labor cost, and improves the calibration efficiency.

[0008] The present application provides an agricultural machinery efficient calibration system based on a central control screen, comprising: a central control screen and an automatic gearbox TCU controller, wherein the central control screen is installed in an upper computer, the automatic gearbox TCU controller is installed in a lower computer, and the upper computer and the lower computer interact through a CAN bus;

[0009] The central control screen is provided with a calibration special UI interface, which comprises a sensor threshold calibration interface and an electromagnetic valve control current calibration interface; the central control screen is used for sending messages to the automatic gearbox TCU controller to request feedback information from the TCU controller and issue calibration values and calibration instructions; wherein the messages sent by the central control screen to the automatic gearbox TCU controller include electromagnetic valve calibration messages and sensor calibration messages;

[0010] The automatic gearbox TCU controller uniformly manages all calibration parameters set by the central control screen by using an array, and pre-sets the saving position of each calibration parameter in the array; the automatic gearbox TCU controller feeds back the messages received from the central control screen, including sending electromagnetic valve feedback messages and sensor feedback messages to the central control screen to realize calibration of the electromagnetic valve and the sensor;

[0011] The electromagnetic valve feedback message is written with the parameter value corresponding to the search information in the electromagnetic valve calibration message from the array, and the sensor feedback message feeds back the real-time value collected by each sensor.

[0012] Further, the sensor threshold calibration interface is used to display the actual feedback value of each sensor and prompt the operation action of the driver.

[0013] Further, the electromagnetic valve control current calibration interface is used to display the historical control current curve of each electromagnetic valve, the editing modification and calibration of the control current.

[0014] Further, the message information of the electromagnetic valve calibration message includes the page number, parameter number and parameter value information of the electromagnetic valve control current calibration interface.

[0015] Further, the page number is set for each electromagnetic valve control current calibration interface;

[0016] The parameter number is set for each point on the control current curve in the electromagnetic valve control current calibration interface;

[0017] If the calibration operation is not performed, only the page number information is written in the electromagnetic valve calibration message, and the parameter number and parameter value number are set to 0, otherwise the page number, parameter number and parameter value information are written.

[0018] Further, the electromagnetic valve calibration message is sent by the central control screen to the automatic transmission TCU controller when the central control screen is in the electromagnetic valve control current calibration interface; and the electromagnetic valve feedback message is sent by the automatic transmission TCU controller to the central control screen when the electromagnetic valve calibration message request is received.

[0019] Further, the message information of the sensor calibration message includes the sensor calibration request instruction of each type.

[0020] Further, the high-efficiency calibration system of agricultural machinery based on the central control screen performs sensor threshold calibration, which comprises:

[0021] When entering the sensor threshold calibration interface, the central control screen analyzes the sensor feedback message from the automatic transmission TCU controller in real time to obtain the actual value of the corresponding page sensor, and updates and displays the actual value in real time in the specified area of the screen;

[0022] The driver completes the corresponding action according to the screen operation prompt;

[0023] After detecting that the calibration button is pressed, the central control screen writes the calibration request of the corresponding sensor into the sensor calibration message;

[0024] The automatic transmission TCU controller receives and analyzes the sensor calibration message, and writes the sensor value into the array according to the calibration request.

[0025] Further, the sensor calibration message sent by the central control screen corresponds to the sensor calibration request instruction position n, the automatic transmission TCU controller receives and analyzes the sensor calibration message, and if the corresponding sensor request instruction position is equal to n, the current sensor acquisition value is written into the array specified index position, otherwise no processing is performed.

[0026] Further, the central control screen based on the high-efficiency calibration system of agricultural machinery performs electromagnetic valve control current calibration, comprising:

[0027] Enter the electromagnetic valve calibration interface, write the current interface page number, parameter code and parameter value set to 0 in the electromagnetic valve calibration message; the central control screen sends the electromagnetic valve calibration message to the automatic transmission TCU controller;

[0028] The automatic transmission TCU controller receives and analyzes the electromagnetic valve calibration message, and according to the page number of the electromagnetic valve calibration message, the corresponding parameter value is retrieved from the array and written into the electromagnetic valve feedback message;

[0029] The central control screen receives and analyzes the electromagnetic valve feedback message, obtains the value of each point on the control current curve and displays it on the screen

[0030] Select the point to be calibrated and click the edit modification button to modify the value;

[0031] Press the calibration button, write the current interface page number, the parameter code corresponding to the modified point and the modified parameter value in the electromagnetic valve calibration message;

[0032] The automatic transmission TCU controller receives and analyzes the electromagnetic valve calibration message, and according to the page code and parameter number, the storage index of the parameter in the array is calculated, and the parameter value is written according to the index.

[0033] The present application has the following advantages:

[0034] 1. Without using special calibration equipment and notebook computers, the controller parameter calibration can be realized, the calibration process is simple, convenient and fast, and the calibration time, calibration difficulty and labor cost are greatly reduced;

[0035] 2. Using fewer messages can realize calibration of dozens of parameters, and the messages are sent on demand, reducing the CAN bus load, facilitating parameter addition and deletion operation, and enabling as few messages as possible to be used for large parameter calibration management;

[0036] 3. The calibration parameters are managed uniformly in an array in the automatic transmission control unit TCU, and can be directly called when displayed on the central control screen, without occupying the storage space of the central control screen, thereby saving storage space. BRIEF DESCRIPTION OF DRAWINGS

[0037] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings:

[0038] Figure 1 A flow chart of the sensor threshold calibration of the embodiment of the application based on the central control screen for the efficient calibration system of agricultural machinery;

[0039] Figure 2 A flow chart of the electromagnetic valve control current calibration of the embodiment of the application.

[0040] Figure 3 A flow chart of the electromagnetic valve control current calibration of the embodiment of the application. DETAILED DESCRIPTION

[0041] In order to make the personnel in the art better understand the technical solutions in the embodiments of the application, the technical solutions of the application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are some of the embodiments of the application, rather than all the embodiments of the application. It should be understood that these descriptions are exemplary, and are not used to limit the scope of the application. Based on the embodiments of the application, all other embodiments obtained by those of ordinary skill in the art without creative work should belong to the scope of protection of the application.

[0042] In addition, in the following description, the description of well-known structures and techniques is omitted to avoid unnecessary confusion of the concepts disclosed in the application.

[0043] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance. The terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] The exemplary embodiments will be described in detail herein, with examples shown in the drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Rather, they are merely examples of methods and systems consistent with some aspects of the present application as detailed in the appended claims.

[0045] The present application proposes a high-efficiency calibration system for agricultural machinery based on a central control screen, which can realize the frequent increase and decrease of specific calibration parameters during the prototype field test stage. The agricultural machinery equipped with the central control screen can perform whole-machine parameter calibration through the CAN network. The present application reduces the difficulty of calibration and the labor cost of calibration on the one hand, and facilitates parameter increase and decrease operations, and can perform as much parameter calibration management as possible with fewer messages.

[0046] As shown in Figure 1 The high-efficiency calibration system for agricultural machinery based on the central control screen 1 of the present application embodiment comprises a central control screen 1 and an automatic transmission TCU controller 2. Wherein, TCU is the abbreviation of Transmission control Unit, i.e. automatic transmission control unit. The central control screen 1 is installed in the upper computer, and the automatic transmission TCU controller 2 is installed in the lower computer. The upper computer and the lower computer interact through the CAN bus. The message sent by the central control screen 1 is used to request the TCU to feedback information and issue calibration values and calibration instructions; the message sent by the TCU controller 2 is used to feedback the information required by the central control screen 1 to display.

[0047] The central control screen 1 is provided with a calibration special UI interface for parameter display, parameter editing and modification, and calibration instruction issuing.

[0048] Specifically, the calibration special UI interface includes: sensor threshold calibration interface and electromagnetic valve control current calibration interface. Each sensor and electromagnetic valve has a corresponding calibration interface. That is, sensor 1 calibration interface, sensor 2 calibration interface,..., sensor n calibration interface; electromagnetic valve 1 calibration interface, electromagnetic valve 2 calibration interface,..., electromagnetic valve n calibration interface.

[0049] The sensor threshold calibration interface is used to display the actual feedback value of each sensor, prompt the driver's operation action and the calibration button.

[0050] The electromagnetic valve control current calibration interface is used to display the historical control current curve of each electromagnetic valve, edit and modify the control current and calibration. The control current curve is composed of n points, and each point corresponds to a calibration parameter.

[0051] The central control screen 1 is used to send messages to the automatic transmission TCU controller 2 to request feedback information from the TCU controller 2 and issue calibration values and calibration instructions. The messages sent by the central control screen 1 to the automatic transmission TCU controller 2 include electromagnetic valve calibration messages and sensor calibration messages.

[0052] The message information of the electromagnetic valve calibration message includes the page number of the electromagnetic valve control current calibration interface, the parameter number and the parameter value information.

[0053] Specifically, the page code is the number set for each electromagnetic valve control current calibration interface.

[0054] The parameter number is the number set for each point on the control current curve in the electromagnetic valve control current calibration interface.

[0055] When entering the electromagnetic valve control current calibration interface, if no calibration operation is performed, only the page number information is written in message 1, and the parameter number and the parameter value number are set to 0, otherwise the page number, the parameter number and the parameter value information are written.

[0056] It should be noted that the electromagnetic valve calibration message is sent by the central control screen 1 to the automatic transmission TCU controller 2 only when the central control screen 1 is in the electromagnetic valve control current calibration interface. The electromagnetic valve feedback message is sent by the automatic transmission TCU controller 2 to the central control screen 1 only when the electromagnetic valve calibration message is requested.

[0057] The message information of the sensor calibration message includes various sensor calibration request instructions.

[0058] The automatic transmission TCU controller 2 uses an array to uniformly manage all calibration parameters set by the central control screen 1, and pre-sets the saving position of each calibration parameter in the array.

[0059] Wherein, the array is a one-dimensional array Array[m] containing m elements, and the saving position of each calibration parameter in the array Array is specified. When the TCU controller 2 receives the calibration instruction, the calibration value is written in the corresponding index position of the array Array to complete the calibration.

[0060] The automatic transmission TCU controller 2 feeds back the received message from the central control screen 1, including: sending the solenoid feedback message and the sensor feedback message to the central control screen 1 to realize the calibration of the solenoid and the sensor.

[0061] Wherein, the solenoid feedback message writes the corresponding parameter value in the solenoid feedback message according to the search information in the solenoid calibration message, and the sensor feedback message feeds back the real-time value collected by each sensor.

[0062] The high-efficiency calibration system for agricultural machinery based on the central control screen 1 is adopted to realize the high-efficiency calibration of agricultural machinery. The parameter modification is completed on the UI interface of the central control screen 1 or the specified operation is completed according to the screen prompt, and then the calibration button is pressed. The message including the calibration value and the calibration instruction is sent through the CAN bus. After the TCU controller 2 receives the corresponding message, the calibration value is written in the corresponding index position of the Array array to complete the calibration of the corresponding parameter.

[0063] As shown in Figure 2 The high-efficiency calibration system for agricultural machinery based on the central control screen 1 performs sensor threshold calibration, including:

[0064] (1) Enter the sensor threshold calibration interface. The central control screen 1 analyzes the sensor feedback message from the automatic transmission TCU controller 2 in real time to obtain the actual value of the corresponding page sensor, and updates and displays the actual value in the specified area of the screen in real time.

[0065] (2) The driver completes the corresponding action according to the screen operation prompt.

[0066] (3) After the central control screen 1 detects that the calibration button is pressed, the calibration request of the corresponding sensor is written into the sensor calibration message.

[0067] (4) The automatic transmission TCU controller 2 receives and analyzes the sensor calibration message, and writes the value of the sensor in the corresponding position of the array according to the calibration request.

[0068] For example, the sensor calibration message sent by the central control screen 1 corresponds to the sensor calibration request instruction position n. The automatic transmission TCU controller 2 receives and analyzes the sensor calibration message. If the corresponding sensor request instruction position is equal to n, the current sensor collection value is written in the specified index position of the array Array, otherwise no processing is performed.

[0069] As shown in Figure 3As shown, the electromagnetic valve control current calibration of the agricultural machine high-efficiency calibration system based on the central control screen 1 includes:

[0070] (1) Enter the electromagnetic valve calibration interface, write the current interface page number, parameter code and parameter value set to 0 in the electromagnetic valve calibration message, and the central control screen 1 sends the electromagnetic valve calibration message to the automatic transmission TCU controller 2.

[0071] (2) The automatic transmission TCU controller 2 receives and parses the electromagnetic valve calibration message, and according to the page number of the electromagnetic valve calibration message, the corresponding parameter value is written into the electromagnetic valve feedback message from the array Array.

[0072] (3) The central control screen 1 receives and parses the electromagnetic valve feedback message, obtains the values of each point on the control current curve and displays on the screen.

[0073] (4) Select the point to be calibrated and click the edit modification button to modify the value.

[0074] (5) Press the calibration button, write the current interface page number, the parameter code corresponding to the modified point and the modified parameter value in the electromagnetic valve calibration message.

[0075] (6) The automatic transmission TCU controller 2 receives and parses the electromagnetic valve calibration message, calculates the storage index of the parameter in the array Array according to the page code and parameter number, and writes the parameter value according to the index.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, and not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application. Any changes or replacements that can be easily thought of by those skilled in the art within the technical scope disclosed by the present application should be covered within the protection scope of the present application.

Claims

1. A high-efficiency calibration system for agricultural machinery based on a central control screen, characterized in that, The application relates to a high-efficiency calibration system based on a central control screen for agricultural machinery, which comprises a central control screen and an automatic transmission TCU controller, wherein the central control screen is installed in an upper computer, the automatic transmission TCU controller is installed in a lower computer, and the upper computer and the lower computer are connected through a CAN bus; the central control screen is provided with a calibration special UI interface, the calibration special UI interface comprises a sensor threshold value calibration interface and an electromagnetic valve control current calibration interface; the central control screen is used for sending messages to the automatic transmission TCU controller to request feedback information from the TCU controller and to issue calibration values and calibration instructions; wherein the messages sent by the central control screen to the automatic transmission TCU controller comprise electromagnetic valve calibration messages and sensor calibration messages; the automatic transmission TCU controller uniformly manages all calibration parameters set by the central control screen through an array, and the saving positions of each calibration parameter in the array are preset; the automatic transmission TCU controller feeds back the messages received from the central control screen, and sends electromagnetic valve feedback messages and sensor feedback messages to the central control screen to realize calibration of electromagnetic valves and sensors; wherein the electromagnetic valve feedback messages are written into the electromagnetic valve feedback messages according to the corresponding parameter values retrieved from the array according to the search information in the electromagnetic valve calibration messages, and the sensor feedback messages feed back real-time values collected by various sensors. The sensor threshold value calibration interface is used for displaying actual feedback values of each sensor and prompting the operation actions of a driver. The electromagnetic valve control current calibration interface is used for displaying a historical control current curve of each electromagnetic valve, editing and modifying the control current and calibration. The message information of the electromagnetic valve calibration messages comprises page code numbers, parameter numbers and parameter value information of the electromagnetic valve control current calibration interface.

5. The high-efficiency calibration system based on a central control screen for agricultural machinery according to claim 4, wherein the page code is the number set for each electromagnetic valve control current calibration interface; the parameter number is the number set for each point on the control current curve in the electromagnetic valve control current calibration interface; if no calibration operation is performed, only the page number information is written in the electromagnetic valve calibration messages, and the parameter number and the parameter value number are set as 0, otherwise, the page code number, the parameter number and the parameter value information are written.

2. The high-efficiency calibration system for agricultural machinery based on a central control screen according to claim 1, characterized in that, The electromagnetic valve calibration messages are sent by the central control screen to the automatic transmission TCU controller when the central control screen is in the electromagnetic valve control current calibration interface; and the electromagnetic valve feedback messages are sent by the automatic transmission TCU controller to the central control screen when the electromagnetic valve calibration messages are received.

3. The high-efficiency calibration system for agricultural machinery based on a central control screen according to claim 1, characterized in that, The message information of the sensor calibration messages comprises various sensor calibration request instructions.

4. The high-efficiency calibration system for agricultural machinery based on a central control screen according to claim 1, characterized in that, The high-efficiency calibration system based on a central control screen for agricultural machinery performs sensor threshold value calibration, which comprises the following steps: entering the sensor threshold value calibration interface; the central control screen analyzes the sensor feedback messages from the automatic transmission TCU controller in real time, obtains the actual values of the corresponding page sensors, and updates and displays the actual values in a specified area on the screen in real time; and the driver completes corresponding actions according to the screen operation prompt. ​ ​ ​ ​ 6. The high-efficiency calibration system for agricultural machinery based on a central control screen according to claim 1, characterized in that, ​ 7. The high-efficiency calibration system for agricultural machinery based on a central control screen according to claim 1, characterized in that, ​ 8. The high-efficiency calibration system for agricultural machinery based on a central control screen according to claim 1, characterized in that, ​ ​ ​ The central control screen writes the calibration request of the corresponding sensor into the sensor calibration message after detecting the pressing of the calibration button; The automatic transmission TCU controller receives and analyzes the sensor calibration message, and writes the value of the sensor into the corresponding position of the array according to the calibration request.

9. The high-efficiency calibration system for agricultural machinery based on a central control screen according to claim 8, characterized in that, The sensor calibration message sent by the central control screen corresponds to the sensor calibration request instruction position n, the automatic transmission TCU controller receives and analyzes the sensor calibration message, if the corresponding sensor request instruction position is equal to n, the current sensor collection value is written into the specified index position of the array, otherwise no processing is performed.

10. The high-efficiency calibration system for agricultural machinery based on a central control screen according to claim 1, characterized in that, The central control screen based agricultural machine efficient calibration system performs electromagnetic valve control current calibration, including: Entering the electromagnetic valve calibration interface, writing the current interface page number, parameter code and parameter value set to 0 in the electromagnetic valve calibration message; the central control screen sends the electromagnetic valve calibration message to the automatic transmission TCU controller; The automatic transmission TCU controller receives and analyzes the electromagnetic valve calibration message, and according to the page number of the electromagnetic valve calibration message, the corresponding parameter value is called from the array and written into the electromagnetic valve feedback message; The central control screen receives and analyzes the electromagnetic valve feedback message, obtains the value of each point on the control current curve and displays it on the screen Selecting the point to be calibrated, clicking the edit modification button to modify the value; Pressing the calibration button, writing the current interface page number, the parameter code corresponding to the modification point and the modified parameter value in the electromagnetic valve calibration message; The automatic transmission TCU controller receives and analyzes the electromagnetic valve calibration message, and according to the page code and parameter number, the storage index of the parameter in the array is calculated, and the parameter value is written according to the index.

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