Shutdown control method of agricultural machinery and related equipment

Abstract

The invention discloses a shutdown control method of an agricultural machine and related equipment. The method comprises the following steps: acquiring urea aqueous solution information of an engine of the agricultural machine; determining the type of the engine based on the urea aqueous solution information, wherein the type of the engine is an SCR type or a non-SCR type; in the process that the ignition switch of the engine is switched from the ignition position to the closing position, when it is detected that the ignition switch is located at a preset position, a pre-shutdown instruction is generated, and the preset position is the position close to the closing position; after a pre-shutdown instruction is detected, delay time is determined based on the urea water solution information, and a whole machine power supply is delayed to be turned off based on the delay time; and controlling a urea pump of the agricultural machine to execute a suck-back function based on the delay time and the pre-shutdown instruction. Thus, the power supply of the whole machine is delayed to be turned off according to the determined delay time, uniform control management of the power supply turning-off time is achieved, the use condition of the urea water solution can be maintained in time, and the engine performance is improved.

Description

Technical Field

[0001] The present application relates to the field of engine control technology, and in particular to a shutdown control method and related equipment for agricultural machinery. Background Art

[0002] After the emission upgrade of agricultural machinery products, the emission post-treatment technology route of medium and large horsepower agricultural machinery products adopts the SCR (Selective Catalytic Reduction) route. During the use of the whole machine, it is necessary to pay attention to the liquid level of the urea aqueous solution. When shutting down, in order to reduce the crystallization of the urea aqueous solution in a low temperature environment, the urea pump in the SCR technology route will usually perform back suction to avoid the presence of urea aqueous solution in the pipeline, causing urea crystallization and affecting engine operation.

[0003] In order to ensure the back-suction effect, it is necessary to extend the time before turning off the main power switch of the whole machine when shutting down. Because the operators of the whole machine are familiar with the operation of the SCR whole machine to different degrees, sometimes different operators are assigned to operate the whole machine, and it is easy to forget the requirement of extending the time before turning off the main power switch during operation. Under low ambient temperature, if the urea pump of the SCR model is not completely back-suctioned, it will cause the urea water solution to crystallize, thereby blocking the pipeline, causing the engine to not work properly, requiring maintenance, and affecting the operation of the whole machine. Summary of the invention

[0004] In order to solve the above problems, the embodiments of the present application provide a shutdown control method and system for agricultural machinery, agricultural machinery, electronic equipment, computer-readable storage medium, and computer program product.

[0005] In a first aspect, in order to solve the above technical problems, the present application provides a shutdown control method for agricultural machinery, comprising: Obtaining urea aqueous solution information of an engine of agricultural machinery; confirming a model type of the engine based on the urea aqueous solution information, the model type being an SCR model or a non-SCR model; During the process of switching the ignition switch of the engine from the ignition position to the off position, a pre-shutdown instruction is generated when it is detected that the ignition switch is in a preset position, wherein the preset position is a position close to the off position; After detecting the pre-shutdown instruction, determining a delay time based on the urea aqueous solution information, so as to delay shutting down the whole machine power based on the delay time; The urea pump of the agricultural machinery is controlled to perform a back suction function based on the delay time and the pre-shutdown instruction.

[0006] The beneficial effects are: In the technical solution provided in the embodiment of the present application, urea aqueous solution information of the engine is obtained; based on the urea aqueous solution information, the model category of the engine is confirmed, and the model category is an SCR model or a non-SCR model; in the process of switching the ignition switch of the engine from the ignition position to the off position, when it is detected that the ignition switch is in a preset position close to the off position, a pre-shutdown instruction is generated; after the pre-shutdown instruction is detected, a delay time is determined based on the urea aqueous solution information to delay shutting down the power of the entire machine based on the delay time; based on the delay time and the pre-shutdown instruction, the urea pump of the agricultural machinery is controlled to perform a back suction function.

[0007] In this way, the present application determines the delay time based on the urea aqueous solution information, realizes the unified control of the power off time, can timely maintain the use of the urea aqueous solution, and avoids the situation that the power is not delayed to be turned off after the engine is turned off due to the replacement of the operator, so that the urea aqueous solution is not completely sucked back, causing the crystallization of the urea aqueous solution, blocking the pipeline and affecting the engine performance. At the same time, it ensures the operation of the back suction function of the SCR type urea pump during the shutdown process, and further avoids the formation of pipeline crystals when the ambient temperature is low.

[0008] In a second aspect, the present invention provides an agricultural machine, using the shutdown control method of the agricultural machine as described above; the agricultural machine includes an ignition switch, an engine control unit and a processor, and an instrument display; The processor is connected to the ignition switch, the engine control unit and the instrument display, and is used to obtain urea aqueous solution information of the engine of the agricultural machinery; confirm the model category of the engine based on the urea aqueous solution information, and the model category is an SCR model or a non-SCR model; when the ignition switch of the engine is switched from the ignition position to the off position, a pre-shutdown instruction is generated when it is detected that the ignition switch is in a preset position, and the preset position is a position close to the off position; after the pre-shutdown instruction is detected, a delay time is determined based on the urea aqueous solution information, so as to delay shutting down the power of the whole machine based on the delay time; The engine control unit is further used to control the urea pump of the agricultural machinery to perform a back suction function based on the delay time and the pre-shutdown instruction.

[0009] In a third aspect, the present application also provides a shutdown control system for agricultural machinery, including an acquisition unit, a machine type confirmation unit, a pre-shutdown unit, a delay unit, and a back suction unit; an acquiring unit, configured to confirm a model type of the engine based on the urea aqueous solution information, wherein the model type is an SCR model or a non-SCR model; a pre-shutdown unit, configured to generate a pre-shutdown instruction when detecting that the ignition switch is in a preset position during the process of the ignition switch of the engine being switched from the ignition position to the off position, wherein the preset position is a position close to the off position; A delay unit, configured to determine a delay time based on the urea aqueous solution information after detecting the pre-shutdown instruction, so as to delay shutting down the power supply of the whole machine based on the delay time; A back suction unit is used to control the urea pump of the agricultural machinery to perform a back suction function based on the delay time and the pre-shutdown instruction.

[0010] In a fourth aspect, the present application also provides an electronic device, comprising: one or more processors; a storage device for storing one or more programs, wherein when the one or more programs are executed by the one or more processors, the electronic device implements the shutdown control method of the agricultural machinery as described above.

[0011] In a fifth aspect, the present application also provides a computer-readable storage medium having computer-readable instructions stored thereon. When the computer-readable instructions are executed by a processor of a computer, the computer executes the shutdown control method for agricultural machinery as described above.

[0012] In a sixth aspect, the present application further provides a computer program product or a computer program, the computer program product or the computer program including computer instructions, the computer instructions being stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the shutdown control method for agricultural machinery provided in the above-mentioned various optional embodiments.

[0013] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work. In the drawings: Figure 1 is a flow chart of a shutdown control method for agricultural machinery shown in an exemplary embodiment of the present application; Figure 2 is a schematic diagram of an agricultural machinery to which the shutdown control method for agricultural machinery provided by the present application is applied in an exemplary embodiment; Figure 3is a flow chart of a shutdown control method for agricultural machinery in an exemplary embodiment of the agricultural machinery provided by the present application; Figure 4 is a block diagram of a shutdown control system for agricultural machinery shown in an exemplary embodiment of the present application; Figure 5 It is a structural diagram of a computer system suitable for implementing an electronic device of an embodiment of the present application. DETAILED DESCRIPTION

[0015] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0016] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0017] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0018] The term "multiple" as used in this application refers to two or more than two. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.

[0019] In order to solve the problem that the main power switch of the whole machine is not turned off after a period of time when shutting down, so that the urea pump corresponding to the SCR model fails to perform thorough back suction, resulting in crystallization of the urea aqueous solution, thereby blocking the pipeline and causing the engine to fail to work normally, the embodiments of the present application propose a shutdown control method and system for agricultural machinery, agricultural machinery, electronic equipment, computer-readable storage medium, and computer program product, which mainly relate to a shutdown control method for agricultural machinery included in engine control technology and related equipment technology. These embodiments will be described in detail below.

[0020] First see Figure 1 , Figure 1 This is a flowchart of a shutdown control method for agricultural machinery shown in an exemplary embodiment of the present application. The method can be specifically executed by a server, which can be an independent server or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, content delivery networks (CDN), and big data and artificial intelligence platforms, etc., and is not limited here.

[0021] like Figure 1 As shown, in an exemplary embodiment, the shutdown control method of the agricultural machinery may include steps S101 to S105, which are described in detail as follows: Step S101, obtaining urea aqueous solution information of an engine of an agricultural machine.

[0022] Step S102: confirming the type of the engine based on the urea aqueous solution information, the type of the engine being an SCR type or a non-SCR type.

[0023] This embodiment determines the model category of the engine by acquiring the urea aqueous solution information of the engine. The model category is SCR model or non-SCR model. SCR model means that the engine needs to treat the exhaust gas through urea aqueous solution. This application only controls the shutdown time for the SCR model. If the engine is a non-SCR model, it is not necessary to use the control method provided by this application for control.

[0024] Step S103, when the ignition switch of the engine is switched from the ignition position to the off position, a pre-shutdown instruction is generated when it is detected that the ignition switch is in a preset position, and the preset position is a position close to the off position.

[0025] Step S104, after detecting the pre-shutdown instruction, determining a delay time based on the urea aqueous solution information, so as to delay shutting down the power of the whole machine based on the delay time.

[0026] Step S105 , controlling the urea pump of the agricultural machinery to perform a back suction function based on the delay time and the pre-shutdown instruction.

[0027] When the ignition switch is switched from the ignition position (ON) to the preset position close to the off position (OFF), it indicates that the engine is about to shut down. This application configures a pre-shutdown instruction and obtains a delay time based on the pre-shutdown instruction to shut down the whole machine power supply through the operation delay feedback from the operator or directly control the shutdown of the whole machine power supply based on the delay time, and controls the urea pump of the agricultural machinery to perform the back suction function before the engine is shut down. Among them, the preset position is between the accessory position (ACC) and the off position (OFF) of the ignition switch, and the distance value or angle difference between the off position and the preset threshold value. The specific value of the preset threshold value can be set according to the needs, and there is no restriction here. It can be used to indicate that the engine is about to shut down.

[0028] As can be seen from the above, in the method provided in this embodiment, for the SCR engine, after detecting the pre-shutdown instruction of the engine, the delay time is determined based on the urea aqueous solution information, and the unified control and management of the power off time is realized, so that the use of the urea aqueous solution can be maintained in time. On the other hand, by delaying the shutdown of the whole machine power supply, sufficient time is reserved for the execution of the back suction function, avoiding the situation that the power supply is not delayed after the flameout due to the replacement of the operator, and the back suction is not performed thoroughly, causing the urea aqueous solution to crystallize, block the pipeline and affect the engine performance, thereby improving the engine performance.

[0029] In an exemplary embodiment of the present application, the specific steps of obtaining the urea aqueous solution information of the engine of the agricultural machinery may include: When the ignition switch is in the ignition position, a start command is generated; Urea aqueous solution information of the engine is collected based on the start command, and the urea aqueous solution information includes urea liquid level data.

[0030] When the ignition switch is in the ignition position (ON), all circuits of the entire machine are energized and the engine is ready to start. The embodiment of the present application configures a start instruction, generates a start instruction when the ignition switch is in the ignition position, and transmits it to the engine control unit, so that the engine control unit controls the urea liquid level sensor to collect the urea liquid level data of the engine to form urea aqueous solution information.

[0031] In addition, the method of confirming the engine model category based on the urea aqueous solution information in this embodiment can detect whether the engine control unit transmits urea liquid level data. If not, the urea aqueous solution information is empty, and the engine model category is determined to be a non-SCR model, otherwise it is an SCR model.

[0032] In another exemplary embodiment, after the urea aqueous solution information of the engine is collected, the filling requirement information needs to be confirmed and displayed, and the specific steps may include: Obtaining the liquid level height in the urea chamber based on the urea liquid level data; Filling requirement information is determined based on the liquid level, and filling prompt information is generated and displayed based on the filling requirement information. The filling requirement information is information indicating whether the urea aqueous solution needs to be supplemented.

[0033] In this way, the present application configures a start instruction through the above-mentioned embodiment each time the engine is ignited and started, collects the engine's urea aqueous solution information based on the start instruction to determine the corresponding delay time; and detects the filling demand information of the urea aqueous solution based on the liquid level corresponding to the urea liquid level data, and when the liquid level is greater than the preset height, it is determined that the urea aqueous solution does not need to be replenished, and the filling prompt information is not displayed. Otherwise, it needs to be displayed, for example, "The urea aqueous solution is insufficient and needs to be added in time", so that the urea aqueous solution is sufficient to ensure that the urea aqueous solution conditions can meet the realization of the back suction function.

[0034] In an exemplary embodiment of the present application, after the pre-shutdown instruction is detected, the specific steps of determining the delay time based on the urea aqueous solution information may include: After detecting the pre-shutdown command, the device information of the urea pump is obtained, and the device information includes working pressure and flow parameters; Obtaining the back suction time corresponding to the back suction function based on the equipment information and the urea aqueous solution information; The delay time is determined based on the suckback time.

[0035] In this embodiment, the urea aqueous solution information includes urea liquid level data. After the pre-shutdown instruction is detected, the back suction time required for the back suction function is obtained based on the working pressure and flow parameters of the urea pump and the urea aqueous solution information. In the embodiment provided by this application, the back suction function starts at the time when the ignition switch is in the off position. Therefore, after determining the back suction time, the required delay time can be determined. Among them, the time point at which the delay time ends is greater than or equal to the time point at which the back suction time ends, which avoids the delay time being too long or too short and ensures the back suction effect.

[0036] In addition, if filling demand information is detected at ignition, the back suction time corresponding to the back suction function is obtained based on the urea liquid level information and equipment information after filling, and then the accurate delay time is determined.

[0037] In an exemplary embodiment of the present application, the specific steps of determining the delay time based on the urea aqueous solution information may include: When the ignition switch is in the ignition position, a start command is generated; Performing power-on processing on the instrument display based on the start-up instruction to obtain the instrument display after power-on; Delay prompt information is obtained based on the delay time, and the delay prompt information is displayed using the instrument display after power-on, so as to delay shutting down the power of the whole machine based on the delay prompt information.

[0038] In this embodiment, the preset position is between the accessory position and the off position of the ignition switch, close to the off position, and the distance value or angle difference between the off position and the preset threshold value. When the ignition switch is in the ignition position, a start instruction is generated, and the instrument display is powered on based on the start instruction to obtain the instrument display after powering on. When the ignition switch rotates from ON to ACC and approaches OFF to reach the preset position, other accessory devices are powered off, but the instrument display is not powered off to ensure the display effect of the prompt information.

[0039] For the delay prompt information, after the pre-shutdown command is generated when the ignition switch is in the preset position, the delay time is determined, the delay prompt information is generated based on the delay time, and the delay prompt information is displayed on the instrument display after power-on. In this way, the operator can be reminded in time to delay shutting down the power of the whole machine, or the delay prompt information can be directly used to control the power of the whole machine to be disconnected after the delay time after the engine stops working.

[0040] See also Figure 2 , Figure 2 FIG. 1 is a schematic diagram of an agricultural machinery in an exemplary embodiment to which the shutdown control method of the agricultural machinery provided by the present application is applied. Figure 2 As shown, the agricultural machinery includes an ignition switch 21, an engine control unit 22, a processor 23, and an instrument display 24, and the processor 23 is connected to the ignition switch 21, the engine control unit 22 and the instrument display 24; the agricultural machinery also includes a urea liquid level sensor 25, and the urea liquid level sensor 25 is connected to the engine control unit 22.

[0041] The ignition switch 21 is a device for starting and shutting down the engine in the vehicle. When the ignition switch 21 is in the off position (OFF), the whole machine is completely powered off and the engine does not work; when it is in the accessory position (ACC), part of the circuit of the whole machine is powered, and the radio, windows and other electrical equipment can be used, but the engine does not work; when it is in the ignition (ON), all circuits of the whole machine are powered, the engine is ready to start, and the indicator light on the instrument panel lights up; when it is in the start position (START), the engine is started, and the key usually needs to be turned to this position and kept for a few seconds until the engine starts.

[0042] In this embodiment, when the ignition switch 21 is in the ignition position, the processor 23 generates a start instruction and transmits it to the engine control unit 22; the engine control unit 22 controls the urea liquid level sensor 25 to collect urea aqueous solution information of the engine based on the start instruction, and the urea aqueous solution information includes urea liquid level data.

[0043] The processor 23 and the instrument display 24 have a display output mode and a memory function. After the manual operation when the ignition switch 21 is in the ignition position is completed, the memory is performed, and the engine model category is confirmed based on the urea aqueous solution information, and the engine model category is an SCR model or a non-SCR model; in the process of the engine ignition switch 21 switching from the ignition position to the off position, a pre-shutdown instruction is generated when it is detected that the ignition switch 21 is in a preset position, and the preset position is a position close to the off position; after the pre-shutdown instruction is detected, a delay time is determined based on the urea aqueous solution information, so as to delay shutting down the power of the entire machine based on the delay time.

[0044] The engine control unit 22 is used to transmit the urea aqueous solution information of the engine, and is also used to control the urea pump of the agricultural machinery to perform the back suction function based on the delay time and the pre-shutdown instruction.

[0045] See also Figure 3 , Figure 3 It is a flow chart of a shutdown control method for agricultural machinery applied in an exemplary embodiment of the agricultural machinery provided by the present application.

[0046] like Figure 3 As shown in the figure, when the ignition switch is in the off position (OFF), the power supply of the whole machine is completely cut off, the engine does not work, and the instrument display does not work.

[0047] When the ignition switch is in the ignition position (ON), all circuits of the whole machine are energized, the engine is ready to start, and the instrument display is displayed normally. The processor receives the urea level data from the urea level sensor collected by the engine control unit ECU. The processor confirms that it is an SCR model based on the urea level data and determines whether it needs to be refilled. If refilling is required, a prompt is given, such as "The urea aqueous solution is insufficient and needs to be added in time". If refilling is not required, the instrument display is used to display the acquired urea level data.

[0048] When the ignition switch is rotated from ON to ACC and then to OFF, the engine is ready to be turned off. If the ignition switch is not in the preset position, the instrument display will continue to display the acquired urea level data. If the ignition switch is in the preset position, under the premise that the engine is an SCR model, the instrument display will display the delay prompt information obtained by the processor based on the urea level data, such as "After turning off the engine, extend T minutes before turning off the power", where T minutes is the delay time determined based on the urea level data.

[0049] Figure 4 FIG. 4 is a block diagram of a shutdown control system 400 for agricultural machinery shown in an exemplary embodiment of the present application. Figure 4 As shown, the system includes: An acquisition unit 401 is used to acquire urea aqueous solution information of an engine of an agricultural machinery; The engine type confirmation unit 402 is used to confirm the engine type based on the urea aqueous solution information, and the engine type is an SCR engine type or a non-SCR engine type; The pre-shutdown unit 403 is used to generate a pre-shutdown instruction when the ignition switch of the engine is detected to be in a preset position during the process of switching from the ignition position to the off position, wherein the preset position is a position close to the off position; The delay unit 404 is used to determine a delay time based on the urea aqueous solution information after detecting the pre-shutdown instruction, so as to delay shutting down the power supply of the whole machine based on the delay time; The back suction unit 405 is used to control the urea pump of the agricultural machinery to perform the back suction function based on the delay time and the pre-shutdown instruction.

[0050] The system applies the shutdown control method of agricultural machinery provided by the present application, and determines the delay time and the corresponding delay prompt information based on the urea aqueous solution information through the acquisition unit 401, the machine type confirmation unit 402, the pre-shutdown unit 403 and the delay unit 404, and displays the delay prompt information, so as to realize the unified control of the power off time, and can timely maintain the use of the urea aqueous solution, and avoid the situation that the power is not delayed after the flameout due to the replacement of the operator, so that the urea aqueous solution is not completely sucked back, causing the crystallization of the urea aqueous solution, blocking the pipeline and affecting the engine performance. At the same time, the back suction unit 405 ensures the operation of the back suction function of the SCR model urea pump during the shutdown process, and further avoids the formation of pipeline crystals when the ambient temperature is low.

[0051] In another exemplary embodiment, the acquisition unit 401 is further configured to generate a start instruction when the ignition switch is in the ignition position; and to collect urea aqueous solution information of the engine based on the start instruction, wherein the urea aqueous solution information includes urea liquid level data.

[0052] In another exemplary embodiment, the system further comprises: The filling unit is used to obtain the liquid level in the urea chamber based on the urea liquid level data; determine the filling requirement information based on the liquid level; generate and display the filling prompt information based on the filling requirement information, and the filling requirement information is information indicating whether the urea aqueous solution needs to be supplemented.

[0053] In another exemplary embodiment, the delay unit 404 is further used to obtain device information of the urea pump after detecting the pre-shutdown instruction, the device information including working pressure and flow parameters; obtain the back suction time corresponding to the back suction function based on the device information and the urea aqueous solution information; and determine the delay time based on the back suction time.

[0054] In another exemplary embodiment, the delay unit 404 is also used to generate a start instruction when the ignition switch is in the ignition position; power on the instrument display based on the start instruction to obtain the instrument display after power-on; obtain delay prompt information based on the delay time, and display the delay prompt information using the instrument display after power-on, so as to delay shutting down the power of the entire machine based on the delay prompt information.

[0055] It should be noted that the shutdown control system for agricultural machinery provided in the above embodiment and the shutdown control method for agricultural machinery provided in the above embodiment belong to the same concept, wherein the specific manner in which each module and unit performs the operation has been described in detail in the method embodiment, and will not be repeated here. In actual application, the shutdown control system for agricultural machinery provided in the above embodiment can allocate the above functions to different functional modules as needed, that is, divide the internal structure of the device into different functional modules to complete all or part of the functions described above, and this is not limited here.

[0056] An embodiment of the present application also provides an electronic device, comprising: one or more processors; a storage device for storing one or more programs, when the one or more programs are executed by one or more processors, the electronic device implements the shutdown control method of agricultural machinery provided in the above-mentioned embodiments.

[0057] Figure 5 The structure diagram of the computer system suitable for implementing the electronic device of the embodiment of the present application is shown. It should be noted that: Figure 5 The computer system 500 of 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 application.

[0058] like Figure 5 As shown, the computer system 500 includes a central processing unit (CPU) 501, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 502 or the program loaded from the storage part 508 to the random access memory (RAM) 503, such as executing the method in the above embodiment. Various programs and data required for system operation are also stored in the RAM 503. The CPU 501, ROM 502 and RAM 503 are connected to each other through a bus 504. The input / output (I / O) interface 505 is also connected to the bus 504.

[0059] The following components are connected to the I / O interface 505: an input section 506 including a keyboard, a mouse, etc.; an output section 507 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 508 including a hard disk, etc.; and a communication section 509 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section 509 performs communication processing via a network such as the Internet. A drive 510 is also connected to the I / O interface 505 as needed. A removable medium 511, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 510 as needed so that a computer program read therefrom is installed into the storage section 508 as needed.

[0060] In particular, according to an embodiment of the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a computer program for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication part 509, and / or installed from a removable medium 511. When the computer program is executed by a central processing unit (CPU) 501, various functions defined in the system of the present application are executed.

[0061] It should be noted that the computer-readable medium shown in the embodiment of the present application may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. 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 (EPROM), a 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 of the above. In the present application, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier, in which a computer-readable computer program is carried. This propagated data signal may take a variety of forms, including but not limited to an electromagnetic signal, an optical signal, or any suitable combination of the above. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate or transmit a program for use by or in conjunction with an instruction execution system, apparatus or device. A computer program contained on a computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

[0062] The flowchart and block diagram in the accompanying drawings illustrate the possible architecture, functions and operations of the system, method and computer program product according to various embodiments of the present application. Wherein, each box in the flowchart or block diagram can represent a module, a program segment, or a part of the code, and the above-mentioned module, 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 different order from the order 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 or flowchart, and the combination of boxes in the block diagram or flowchart 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.

[0063] The units involved in the embodiments described in this application may be implemented by software or hardware, and the units described may also be set in a processor. The names of these units do not, in some cases, constitute limitations on the units themselves.

[0064] Another aspect of the present application further provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the shutdown control method of the agricultural machinery as described above is implemented. The computer-readable storage medium may be included in the electronic device described in the above embodiment, or may exist independently without being assembled into the electronic device.

[0065] Another aspect of the present application also provides a computer program product or a computer program, the computer program product or the computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the shutdown control method of the agricultural machinery provided in each of the above embodiments.

[0066] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A shutdown control method for agricultural machinery, characterized in that: The method comprises: Obtaining urea aqueous solution information of an engine of agricultural machinery; confirming a model type of the engine based on the urea aqueous solution information, the model type being an SCR model or a non-SCR model; During the process of switching the ignition switch of the engine from the ignition position to the off position, a pre-shutdown instruction is generated when it is detected that the ignition switch is in a preset position, wherein the preset position is a position close to the off position; After detecting the pre-shutdown instruction, determining a delay time based on the urea aqueous solution information, so as to delay shutting down the whole machine power based on the delay time; The urea pump of the agricultural machinery is controlled to perform a back suction function based on the delay time and the pre-shutdown instruction.

2. The method according to claim 1, characterized in that The step of obtaining the urea aqueous solution information of the engine of the agricultural machinery includes: When the ignition switch is in the ignition position, generating a start instruction; Urea aqueous solution information of the engine is collected based on the start command, where the urea aqueous solution information includes urea liquid level data.

3. The method according to claim 2, characterized in that After collecting the urea aqueous solution information of the engine based on the start instruction, the method further includes: Obtaining a liquid level in the urea chamber based on the urea liquid level data; Filling requirement information is determined based on the liquid level, and filling prompt information is generated and displayed based on the filling requirement information, wherein the filling requirement information is information indicating whether urea aqueous solution needs to be supplemented.

4. The method according to claim 1, characterized in that: After the pre-shutdown instruction is detected, determining the delay time based on the urea aqueous solution information includes: After detecting the pre-shutdown instruction, acquiring device information of the urea pump, the device information including working pressure and flow parameters; Obtaining a back suction time corresponding to a back suction function based on the device information and the urea aqueous solution information; A delay time is determined based on the suck-back time.

5. The method according to claim 1, characterized in that The step of determining a delay time based on the urea aqueous solution information, so as to delay shutting down the whole machine power supply based on the delay time, includes: When the ignition switch is in the ignition position, generating a start instruction; Performing power-on processing on the instrument display based on the startup instruction to obtain a powered-on instrument display; Delay prompt information is obtained based on the delay time, and the delay prompt information is displayed using the instrument display after power-on, so as to delay shutting down the power of the entire machine based on the delay prompt information.

6. An agricultural machine, characterized in that: A shutdown control method for agricultural machinery according to any one of claims 1 to 5; the agricultural machinery comprises an ignition switch, an engine control unit and a processor, and an instrument display; The processor is connected to the ignition switch, the engine control unit and the instrument display, and the processor is used to obtain urea aqueous solution information of the engine of the agricultural machinery; The engine model category is confirmed based on the urea aqueous solution information, and the engine model category is an SCR engine model or a non-SCR engine model; when the ignition switch of the engine is switched from the ignition position to the off position, a pre-shutdown instruction is generated when it is detected that the ignition switch is in a preset position, and the preset position is a position close to the off position; after the pre-shutdown instruction is detected, a delay time is determined based on the urea aqueous solution information, so as to delay shutting down the power of the whole engine based on the delay time; The engine control unit is further used to control the urea pump of the agricultural machinery to perform a back suction function based on the delay time and the pre-shutdown instruction.

7. The agricultural machine according to claim 6, characterized in that: The agricultural machinery further comprises a urea liquid level sensor, and the urea liquid level sensor is connected to the engine control unit; When the ignition switch is in the ignition position, the processor is further used to generate a start instruction and transmit it to the engine control unit; the engine control unit is further used to control the urea liquid level sensor to collect urea aqueous solution information of the engine based on the start instruction, and the urea aqueous solution information includes urea liquid level data.

8. A shutdown control system for agricultural machinery, characterized in that: include: An acquisition unit, used for acquiring urea aqueous solution information of an engine of an agricultural machinery; A model confirmation unit, used for confirming the model category of the engine based on the urea aqueous solution information, the model category being an SCR model or a non-SCR model; a pre-shutdown unit, configured to generate a pre-shutdown instruction when detecting that the ignition switch is in a preset position during the process of the ignition switch of the engine being switched from the ignition position to the off position, wherein the preset position is a position close to the off position; A delay unit, configured to determine a delay time based on the urea aqueous solution information after detecting the pre-shutdown instruction, so as to delay shutting down the power supply of the whole machine based on the delay time; A back suction unit is used to control the urea pump of the agricultural machinery to perform a back suction function based on the delay time and the pre-shutdown instruction.

9. An electronic device, characterized in that: include: one or more processors; A storage device for storing one or more programs, which, when executed by the one or more processors, enables the electronic device to implement the shutdown control method for agricultural machinery as described in any one of claims 1 to 5.

10. A computer-readable storage medium, characterized in that: Computer-readable instructions are stored thereon, and when the computer-readable instructions are executed by a processor of a computer, the computer is caused to execute the shutdown control method for agricultural machinery according to any one of claims 1 to 5.

Images