Control method and system for engine oil maintenance prompt of agricultural machinery engine

Abstract

The invention discloses a control method and system for agricultural machinery engine oil maintenance prompt, and relates to the technical field of agricultural machinery engine maintaining.The method comprises the steps that the actual use duration of engine oil of an agricultural machinery engine and the current liquid level height of the engine oil are obtained and analyzed; according to the engine oil control method and device, the situation of engine faults caused by excessive engine oil, overdue engine oil use and insufficient engine oil can be effectively avoided, and the engine oil control method and device have the advantages that the engine oil control method and device are simple in structure and convenient to operate; the reliability of the engine is effectively improved, and the working efficiency is improved.

Description

Background Art

[0002] The engines of large agricultural machinery (tractors, sprayers, harvesters, etc.) are usually placed at a relatively high position of the whole machine. Usually, the driver needs to make a routine confirmation of the machine before using it to see if the engine oil meets the liquid level requirements. At present, the products basically need to pull out the oil dipstick from the engine for confirmation. Due to the large size of the machine, the driver needs to climb the ladder to the engine operating platform for manual operation, which is inconvenient. In addition, there are time requirements for changing the engine oil. At present, the oil change is also done by manual recording by personnel, which may affect the engine performance due to inaccurate or forgotten changes. Some products may cause oil leakage due to defects in parts, and excessive oil may affect the lubrication of the engine. Long-term operation without timely discovery may cause engine failure. Summary of the invention

[0003] The technical problem to be solved by the present invention is to address the deficiencies of the prior art and specifically provide a control method and system for oil maintenance reminder for agricultural machinery engines, as follows:

[0004] 1) In the first aspect, the present invention provides a control method for agricultural machinery engine oil maintenance reminder, and the specific technical scheme is as follows:

[0005] Obtaining the actual usage time of the engine oil of the agricultural machinery and the current liquid level of the engine oil;

[0006] When T≥Tmax, a warning message is issued to remind you to change the engine oil;

[0007] When T<Tmax and H>Hmax, a warning message is issued to remind that the engine oil is overfilled;

[0008] When T<Tmax and H<Hmin, a warning message for reminding that the engine oil is insufficient is issued;

[0009] Among them, T represents the actual usage time of the engine oil, H represents the current liquid level of the engine oil, Tmax represents the preset maximum usage time, Hmax represents the preset maximum liquid level, and Hmin represents the preset minimum liquid level.

[0010] The beneficial effects of the control method for oil maintenance reminder of an agricultural machinery engine provided by the present invention are as follows:

[0011] It can effectively avoid engine failures caused by excessive oil, overdue oil use and insufficient oil, effectively improving the reliability of the engine and improving work efficiency.

[0012] On the basis of the above scheme, the control method of the agricultural machinery engine oil maintenance reminder of the present invention can also be improved as follows.

[0013] Furthermore, it also includes:

[0014] When T<Tmax and Hmin<H≤Hmax, no warning message is issued.

[0015] Furthermore, the process of obtaining the actual usage time of the engine oil of the agricultural machinery includes:

[0016] The actual usage time of the engine oil is determined based on the time the engine of the agricultural machinery is in operation.

[0017] Furthermore, the process of obtaining the current liquid level height of the engine oil of the agricultural machinery includes:

[0018] The oil level sensor is used to obtain the current oil level of the engine of the agricultural machinery.

[0019] 2) In the second aspect, the present invention also provides a control system for agricultural machinery engine oil maintenance reminder, and the specific technical solution is as follows:

[0020] Including data acquisition module and reminder module;

[0021] The data acquisition module is used to: obtain the actual usage time of the engine oil of the agricultural machinery and the current liquid level of the engine oil;

[0022] The reminder module is used to:

[0023] When T≥Tmax, a warning message is issued to remind you to change the engine oil;

[0024] When T<Tmax and H>Hmax, a warning message is issued to remind that the engine oil is overfilled;

[0025] When T<Tmax and H<Hmin, a warning message for reminding that the engine oil is insufficient is issued;

[0026] Among them, T represents the actual usage time of the engine oil, H represents the current liquid level of the engine oil, Tmax represents the preset maximum usage time, Hmax represents the preset maximum liquid level, and Hmin represents the preset minimum liquid level.

[0027] On the basis of the above scheme, the control system for oil maintenance reminder of an agricultural machinery engine of the present invention can also be improved as follows.

[0028] Furthermore, the reminder module is also used to:

[0029] When T<Tmax and Hmin<H≤Hmax, no warning message is issued.

[0030] Furthermore, the data acquisition module is also specifically used to determine the actual usage time of the engine oil according to the time that the engine of the agricultural machinery is in the operating state.

[0031] Furthermore, the data acquisition module is also specifically used to: use an oil level sensor to acquire the current oil level of the engine of the agricultural machinery.

[0032] 3) In a third aspect, the present invention further provides an electronic device, comprising a processor, the processor being coupled to a memory, the memory storing at least one computer program, the at least one computer program being loaded and executed by the processor so that the electronic device implements any of the above-mentioned control methods for agricultural machinery engine oil maintenance reminders.

[0033] 4) In a fourth aspect, the present invention further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the control method for any of the above-mentioned agricultural machinery engine oil maintenance reminders is implemented.

[0034] It should be noted that the beneficial effects achieved by the technical solutions of the second to fourth aspects of the present invention and the corresponding possible implementation methods can be found in the above-mentioned technical effects of the first aspect and its corresponding possible implementation methods, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments of the present invention:

[0036] Figure 1 A schematic flow chart of a control method for providing oil maintenance reminder for an agricultural machinery engine according to an embodiment of the present invention;

[0037] Figure 2 This is a structural schematic diagram of a control system for reminding engine oil maintenance of agricultural machinery according to an embodiment of the present invention;

[0038] Figure 3 The figure is a schematic diagram of the structure of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0039] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0040] The technical solution of the present invention and how the technical solution of the present invention solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0041] like Figure 1 As shown, a control method for an agricultural machinery engine oil maintenance reminder according to an embodiment of the present invention comprises the following steps:

[0042] S1. Obtaining the actual usage time of the engine oil of the agricultural machinery and the current liquid level of the engine oil;

[0043] S2. Analyze the actual usage time of the engine oil of the agricultural machinery and the current liquid level of the engine oil, and issue a warning message, specifically:

[0044] 1) When T≥Tmax, a warning message is issued to remind you to change the engine oil;

[0045] 2) When T<Tmax and H>Hmax, a warning message is issued to remind that the engine oil is overfilled;

[0046] 3) When T<Tmax and H<Hmin, a warning message for reminding that the engine oil is insufficient is issued;

[0047] Among them, T represents the actual usage time of the engine oil, H represents the current liquid level of the engine oil, Tmax represents the preset maximum usage time, Hmax represents the preset maximum liquid level, and Hmin represents the preset minimum liquid level.

[0048] Optionally, in the above technical solution, it also includes:

[0049] When T<Tmax and Hmin<H≤Hmax, no warning message is issued.

[0050] Optionally, in the above technical solution, the process of obtaining the actual usage time of the engine oil of the agricultural machinery includes:

[0051] The actual usage time of the engine oil is determined based on the time the engine of the agricultural machinery is in operation.

[0052] Among them, the engine speed n is obtained through the crankshaft speed sensor. When n>N, it is determined that the engine is in a running state. When n≤N, it is determined that the engine is in a flameout state. N represents a preset speed threshold. N can be specifically 600 rpm, and can also be set according to actual conditions.

[0053] The duration that the engine of the agricultural machinery is in operation may be used as the actual usage duration of the engine oil.

[0054] Optionally, in the above technical solution, the process of obtaining the current liquid level height of the engine oil of the agricultural machinery engine includes:

[0055] The oil level sensor is used to obtain the current oil level of the engine of the agricultural machinery.

[0056] The present invention is described by the following examples:

[0057] In this embodiment, the execution subject of the control method of the agricultural machinery engine oil maintenance reminder of the present invention can be a processor, the engine speed n is obtained through the crankshaft speed sensor, the engine speed n is obtained through the oil level sensor, and the engine control unit ECU is used to count the time when the engine of the agricultural machinery is in the running state. The specific explanation of each component is as follows:

[0058] 1) Engines are used to power agricultural machinery.

[0059] 2) The crankshaft speed sensor is one of the most important sensors in the engine control system. It is used to detect the signals of the top dead center of the engine piston and the crankshaft angle and input them into the engine control unit ECU to control the ignition timing and injection timing. It is also the signal source for measuring the engine speed.

[0060] 3) The oil level sensor is installed on the oil pan of the engine to detect the oil level of the engine. To protect the engine, the maximum oil level (i.e., the preset maximum oil level Hmax) and the minimum oil level (i.e., the preset minimum oil level Hmin) are preset for the engine. The oil level for normal operation of the engine is Hmin<H≤Hmax. The engine operates normally and no warning information is required. When the oil level detected by the oil level sensor is H>Hmax, or the oil level is H≤Hmin, it will affect the operation of the engine. Long-term operation will cause engine failure. At this time, a warning message indicating that the engine needs maintenance will be prompted through the display.

[0061] 4) The engine control unit is used to collect engine operation signals and control processing instructions.

[0062] 5) The engine control unit ECU records and stores the length of time the engine is in operation (which can be called the engine working hours) and sends it to the processor, so that the processor can analyze and determine the actual usage time T of the engine oil. The oil lubrication system sets the maximum usage time of the oil in advance (that is, the preset maximum usage time Tmax). When T≥Tmax, a warning message is issued to remind you to change the oil.

[0063] 6) The processor is the whole machine processing unit, which reads the speed collected by the crankshaft speed sensor of the engine control unit ECU and the length of time the engine is in the running state, and performs comprehensive analysis and judgment based on the current oil level height collected by the oil level sensor and the length of time the engine is in the running state, and outputs the information to the display;

[0064] 7) The display can receive information from the processor and display it, and the processor can perform information maintenance operations to confirm the replacement of the engine oil, so that the processor can count the usage time of the newly replaced engine oil.

[0065] The specific control methods are as follows:

[0066] The crankshaft speed sensor transmits the collected speed to the engine control unit ECU. After the processor reads the engine control unit ECU, it determines the engine's operating state. When the engine speed n>600 rpm, the engine is in operation; when the engine speed n≤600 rpm, it can be determined that the engine is in a flameout state. 600 rpm is an example data, and the specific data is different for different engine settings.

[0067] The duration of the agricultural machinery engine being in operation is taken as the actual usage duration of the engine oil. When the actual usage duration of the engine oil is T≥Tmax, a warning message for changing the engine oil is issued on the display. When the replacement and maintenance are completed, the user needs to confirm the maintenance information on the display so that the processor can automatically monitor the usage time of the newly replaced engine oil and record the actual usage duration of the oil.

[0068] When T<Tmax and H>Hmax, the engine performance will be affected, and the processor will send a warning message through the display to remind that the engine oil is overfilled.

[0069] When T<Tmax and H<Hmin, the processor sends a warning message for reminding that the engine oil is insufficient through the display.

[0070] When T<Tmax and Hmin<H≤Hmax, the engine runs normally and the display does not prompt maintenance information.

[0071] The present invention comprehensively analyzes the engine oil level when the engine is running, and the processor determines the usage time of the engine oil during the engine running time. The processor analyzes and feeds back to the display to prompt the engine oil maintenance, thereby effectively avoiding the occurrence of engine failure caused by insufficient oil, excessive use of oil and oil leakage during operation, thereby effectively improving product reliability and working efficiency.

[0072] Optionally, in the above technical solution, it also includes:

[0073] S101, synchronously collecting the original data of the engine oil level, crankcase pressure and speed-load working condition parameters of the engine through the on-board CAN bus of the agricultural machinery, using the dynamic time warping (DTW) algorithm to eliminate the timing offset of the original data of the engine oil level, crankcase pressure and speed-load working condition parameters, and then training a dynamic baseline model based on the federated learning framework, the output of the dynamic baseline model includes: theoretical oil consumption rate and confidence interval of the theoretical oil consumption rate;

[0074] Among them, the raw data of oil level refers to: the oil level directly obtained by a capacitive or ultrasonic sensor, the crankcase pressure refers to: the gas pressure value in the crankcase measured by a piezoelectric sensor; the speed-load condition parameter refers to: the combination data of real-time speed and torque percentage provided by the engine control unit (ECU).

[0075] S102: According to the output of the dynamic baseline model, a vibration intensity-associated Kalman filter algorithm is used to dynamically denoise the original engine oil level data to obtain a first theoretical engine oil consumption.

[0076] S103. Calculate the second theoretical engine oil consumption based on the piston ring clearance fluid dynamics sub-model embedded in the dynamic baseline model, calculate the average of the first theoretical engine oil consumption and the second theoretical engine oil consumption as the theoretical engine oil consumption, perform temperature-compensated residual calculation on the actual engine oil consumption and the theoretical engine oil consumption to obtain a dimensionless standardized residual sequence, extract the time-frequency domain multi-scale features in the dimensionless standardized residual sequence by wavelet transform, calculate the residual statistics of the standardized residual sequence based on the piston ring clearance model (specifically including: mean, variance, skewness and kurtosis, etc.), concatenate the time-frequency domain features with the physical mechanism features, and generate a discriminant feature vector.

[0077] S104: Input the discriminative feature vector into the multimodal fusion model to obtain the abnormal probability of the engine.

[0078] Among them, the multimodal fusion model is composed of a temporal convolutional network, a bidirectional long short-term memory network and a cascade of self-attention mechanisms. In the process of training the multimodal fusion model, based on the output of the dynamic baseline model, a model-independent meta-learning algorithm is used to fine-tune small sample parameters, and adversarial samples are generated by perturbing the working condition-consumption mapping relationship of the dynamic baseline model. Then, the multimodal fusion model is trained to enhance the robustness of abnormal pattern recognition.

[0079] S105. Use an uncertainty quantification method (such as the Monte Carlo method) to process the output abnormal probability to obtain a final abnormal probability. When the final abnormal probability exceeds a preset threshold, activate the traceability reasoning engine based on the fault knowledge graph, match the discriminative feature vector with the fault mode in the engine's fault knowledge graph, and obtain a diagnosis result including the cause of the fault and the fault propagation path, so that maintenance personnel can maintain the engine according to the diagnosis result.

[0080] In the above embodiments, although the steps are numbered S1, S2, etc., these are only specific embodiments given by the present invention. Those skilled in the art may adjust the execution order of S1, S2, etc. according to actual conditions, which is also within the protection scope of the present invention. It can be understood that in some embodiments, some or all of the above embodiments may be included.

[0081] like Figure 2 As shown, a control system 200 for reminding engine oil maintenance of agricultural machinery according to an embodiment of the present invention includes a data acquisition module 201 and a reminder module 202;

[0082] The data acquisition module 201 is used to: acquire the actual usage time of the engine oil of the agricultural machinery and the current liquid level of the engine oil;

[0083] The reminder module 202 is used for:

[0084] When T≥Tmax, a warning message is issued to remind you to change the engine oil;

[0085] When T<Tmax and H>Hmax, a warning message is issued to remind that the engine oil is overfilled;

[0086] When T<Tmax and H<Hmin, a warning message for reminding that the engine oil is insufficient is issued;

[0087] Among them, T represents the actual usage time of the engine oil, H represents the current liquid level of the engine oil, Tmax represents the preset maximum usage time, Hmax represents the preset maximum liquid level, and Hmin represents the preset minimum liquid level.

[0088] Optionally, in the above technical solution, the reminder module 202 is further used for:

[0089] When T<Tmax and Hmin<H≤Hmax, no warning message is issued.

[0090] Optionally, in the above technical solution, the data acquisition module 201 is further specifically used to determine the actual usage time of the engine oil according to the time that the engine of the agricultural machinery is in the operating state.

[0091] Optionally, in the above technical solution, the data acquisition module 201 is further specifically used to: use an oil level sensor to acquire the current oil level height of the engine of the agricultural machinery.

[0092] It should be noted that the beneficial effects of the control system 200 for agricultural machinery engine oil maintenance reminder provided in the above embodiment are the same as the beneficial effects of the control method for agricultural machinery engine oil maintenance reminder provided in the above embodiment, which will not be described in detail here. In addition, when the system provided in the above embodiment realizes its functions, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the system can be divided into different functional modules according to actual conditions to complete all or part of the functions described above. In addition, the system and method embodiments provided in the above embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be described in detail here.

[0093] Among them, the control system of the agricultural machinery engine oil maintenance reminder of the present invention can be a computer program (including program code) running in a computer device. For example, the control system of the agricultural machinery engine oil maintenance reminder of the present invention is an application software that can be used to execute the corresponding steps in the control method of the agricultural machinery engine oil maintenance reminder of the present invention.

[0094] In some embodiments, the control system for the agricultural machinery engine oil maintenance reminder of the present invention can be implemented by a combination of software and hardware. As an example, the control system for the agricultural machinery engine oil maintenance reminder of the present invention can be a processor in the form of a hardware decoding processor, which is programmed to execute the method of the present invention. For example, the processor in the form of a hardware decoding processor can adopt one or more application specific integrated circuits (ASIC, Application Specific Integrated Circuit), DSP, programmable logic device (PLD, Programmable Logic Device), complex programmable logic device (CPLD, Complex Programmable Logic Device), field programmable gate array (FPGA, Field-Programmable Gate Array) or other electronic components.

[0095] The modules involved in the embodiments of the present invention may be implemented in software or hardware. The name of a module does not limit the module itself in some cases.

[0096] An electronic device according to an embodiment of the present invention comprises a memory, a processor and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, any one of the above-mentioned methods for controlling the engine oil maintenance reminder of agricultural machinery is implemented. That is to say, an electronic device according to an embodiment of the present invention may include but is not limited to: a processor and a memory; a memory for storing the computer program; a processor for executing the method for controlling the engine oil maintenance reminder of agricultural machinery shown in any one of the embodiments of the present invention by calling the computer program.

[0097] In an alternative embodiment, an electronic device is provided, such as Figure 3 As shown, Figure 3 The electronic device 4000 shown includes: a processor 4001 and a memory 4003. The processor 4001 and the memory 4003 are connected, such as through a bus 4002. Optionally, the electronic device 4000 may also include a transceiver 4004, which may be used for data interaction between the electronic device and other electronic devices, such as data transmission and / or data reception. It should be noted that in actual applications, the transceiver 4004 is not limited to one, and the structure of the electronic device 4000 does not constitute a limitation on the embodiments of the present invention.

[0098] Processor 4001 may be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It may implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of the present invention. Processor 4001 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0099] The bus 4002 may include a path to transmit information between the above components. The bus 4002 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus. The bus 4002 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 3In the figure, only one thick line is used to represent the bus 4002, but this does not mean that there is only one bus or one type of bus.

[0100] The memory 4003 can be a ROM (Read Only Memory) or other types of static storage devices that can store static information and instructions, a RAM (Random Access Memory) or other types of dynamic storage devices that can store information and instructions, or an EEPROM (Electrically Erasable Programmable Read Only Memory), a CD-ROM (Compact Disc Read Only Memory) or other optical disk storage, optical disk storage (including compressed optical disk, laser disk, optical disk, digital versatile disk, Blu-ray disk, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited to this.

[0101] The memory 4003 is used to store the application code (computer program) for executing the solution of the present invention, and the execution is controlled by the processor 4001. The processor 4001 is used to execute the application code stored in the memory 4003 to implement the content shown in the above method embodiment.

[0102] Among them, the electronic device can also be a terminal device, and the terminal device can be any device that can install applications, including at least one of a smart phone, a tablet computer, a laptop computer, a desktop computer, a smart speaker, a smart watch, a smart TV, and a smart car device.

[0103] It should be noted that Figure 3 The electronic device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0104] A computer-readable storage medium according to an embodiment of the present invention stores a computer program, and when the computer program is executed by a processor, any of the above-mentioned control methods for reminding engine oil maintenance of agricultural machinery is implemented.

[0105] Optionally, the computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a compact disc (CD-ROM), a magnetic tape, a floppy disk, an optical data storage device, and the like.

[0106] In an exemplary embodiment, a computer program product or a computer program is also provided, the computer program product or the computer program comprising computer instructions, the computer instructions being stored in a computer-readable storage medium. A processor of an electronic device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the electronic device executes any of the above-mentioned control methods for reminding the engine oil maintenance of agricultural machinery.

[0107] Computer program code for performing the operations of the present invention may be written in one or more programming languages, or a combination thereof, including object-oriented programming languages, such as Java, Smalltalk, C++, and conventional procedural programming languages, such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider).

[0108] It should be understood that the flow charts and block diagrams in the accompanying drawings illustrate the possible implementation architecture, functions and operations of the method and computer program product according to various embodiments of the present invention. In this regard, each box in the flow chart or block diagram can represent a module, a program segment, or a part of a code, and the module, the program segment, or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a sequence different from that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0109] The computer-readable storage medium provided by the embodiment of the present invention may be, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or component, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EEPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In the present invention, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in conjunction with an instruction execution system, device, or component.

[0110] The computer-readable storage medium carries one or more programs. When the one or more programs are executed by the electronic device, the electronic device executes the method shown in the above embodiment.

[0111] The above description is only a preferred embodiment of the present invention and an explanation of the technical principles used. Those skilled in the art should understand that the disclosure scope involved in the present invention is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosed concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present invention (but not limited to) by each other.

[0112] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects and represent the definition of a specific order or sequence. The order of use of similar objects can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than the order shown or described.

[0113] Those skilled in the art know that the present invention can be implemented as a system, method or computer program product. Therefore, the present invention can be specifically implemented in the following forms, namely: it can be complete hardware, it can be complete software (including firmware, resident software, microcode, etc.), or it can be a combination of hardware and software, which is generally referred to as "circuit", "module" or "system" herein. In addition, in some embodiments, the present invention can also be implemented in the form of a computer program product in one or more computer-readable media, and the computer-readable medium contains computer-readable program code.

[0114] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A control method for agricultural machinery engine oil maintenance reminder, characterized in that: include: Obtaining the actual usage time of the engine oil of the agricultural machinery and the current liquid level of the engine oil; When T≥Tmax, a warning message is issued to remind you to change the engine oil; When T<Tmax and H>Hmax, a warning message is issued to remind that the engine oil is overfilled; When T<Tmax and H<Hmin, a warning message for reminding that the engine oil is insufficient is issued; Among them, T represents the actual usage time of the engine oil, H represents the current liquid level of the engine oil, Tmax represents the preset maximum usage time, Hmax represents the preset maximum liquid level, and Hmin represents the preset minimum liquid level.

2. The control method for agricultural machinery engine oil maintenance reminder according to claim 1, characterized in that: Also includes: When T<Tmax and Hmin<H≤Hmax, no warning message is issued.

3. A control method for agricultural machinery engine oil maintenance reminder according to claim 1 or 2, characterized in that: The process of obtaining the actual usage time of the engine oil of the agricultural machinery includes: The actual usage time of the engine oil is determined based on the time the engine of the agricultural machinery is in operation.

4. A control method for agricultural machinery engine oil maintenance reminder according to claim 1 or 2, characterized in that: The process of obtaining the current fluid level of the engine oil of the agricultural machinery includes: The oil level sensor is used to obtain the current oil level of the engine of the agricultural machinery.

5. A control system for agricultural machinery engine oil maintenance reminder, characterized in that: Including data acquisition module and reminder module; The data acquisition module is used to: acquire the actual usage time of the engine oil of the agricultural machinery and the current liquid level of the engine oil; The reminder module is used for: When T≥Tmax, a warning message is issued to remind you to change the engine oil; When T<Tmax and H>Hmax, a warning message is issued to remind that the engine oil is overfilled; When T<Tmax and H<Hmin, a warning message for reminding that the engine oil is insufficient is issued; Among them, T represents the actual usage time of the engine oil, H represents the current liquid level of the engine oil, Tmax represents the preset maximum usage time, Hmax represents the preset maximum liquid level, and Hmin represents the preset minimum liquid level.

6. The control system for agricultural machinery engine oil maintenance reminder according to claim 5, characterized in that: The reminder module is also used for: When T<Tmax and Hmin<H≤Hmax, no warning message is issued.

7. A control system for agricultural machinery engine oil maintenance reminder according to claim 5 or 6, characterized in that: The data acquisition module is also specifically used to determine the actual usage time of the engine oil according to the time that the engine of the agricultural machinery is in the operating state.

8. A control system for agricultural machinery engine oil maintenance reminder according to claim 5 or 6, characterized in that: The data acquisition module is also specifically used to: use an oil level sensor to acquire the current oil level of the engine of the agricultural machinery.

9. An electronic device, characterized in that: The invention comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, a control method for oil maintenance reminder of an agricultural machinery engine as claimed in any one of claims 1 to 4 is implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method for controlling the oil maintenance reminder of an agricultural machinery engine according to any one of claims 1 to 4 is implemented.

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