Hydraulic excavator and tamper-proof method and system for hour meter, electronic monitor

Abstract

This disclosure relates to a hydraulic excavator and its hour counter anti-tampering method and system, as well as an electronic monitor. The anti-tampering method for the hydraulic excavator hour counter includes: when the hour counter count changes, the electronic monitor determines whether there is suspicious activity in the hour counter; if suspicious activity is found, the electronic monitor actively drives the engine speed to change, wherein the engine of the hydraulic excavator is a mechanical engine; the electronic monitor acquires the current engine speed; the electronic monitor determines whether the current engine speed is consistent with a set speed; if the current engine speed is inconsistent with the set speed, the electronic monitor determines that the current hour counter count is a first invalid count. This disclosure can achieve anti-tampering of the hour counter of a hydraulic excavator based on a mechanical engine, effectively preventing the hour counter from being tampered with.

Description

Technical Field

[0001] This disclosure relates to the field of excavator control technology, and in particular to a hydraulic excavator and its hour meter anti-tampering method and system, and an electronic monitor. Background Technology

[0002] The hourly records of excavators are crucial for billing, warranty purposes, and reliability analysis. However, they are frequently tampered with, disrupting market order and causing management difficulties. For small hydraulic excavators using mechanical engines, electronic monitors are commonly used, integrating control and display functions. The hourly count and display are handled independently by the electronic monitor; external tampering devices generally cannot alter the electronically monitored hourly records. Summary of the Invention

[0003] The inventors discovered through research that the relevant technology for tampering with the hour meter of such hydraulic excavators mainly involves the tampering device replacing the speed sensor to send a specific frequency signal to the electronic monitor, causing the electronic monitor to misjudge the engine's operating status and thus start counting hours even when the engine is not actually running.

[0004] In view of at least one of the above technical problems, this disclosure provides a hydraulic excavator and a method and system for preventing tampering with its hour meter, as well as an electronic monitor, which can realize the tamper-proofing of the hour meter of the hydraulic excavator based on the mechanical engine and effectively prevent the hour meter from being tampered with.

[0005] According to one aspect of this disclosure, a method for preventing tampering of the hour meter of a hydraulic excavator is provided, comprising:

[0006] When the hourly meter count changes, the electronic monitor determines whether the hourly meter is behaving suspiciously.

[0007] In the event of suspicious activity detected by the hourly meter, the electronic monitor actively drives the engine speed to change, wherein the engine of the hydraulic excavator is a mechanical engine;

[0008] The electronic monitor obtains the current engine speed;

[0009] The electronic monitor determines whether the current engine speed matches the set speed.

[0010] If the current engine speed is inconsistent with the set speed, the electronic monitor determines that the current hourly count is the first invalid count.

[0011] In some embodiments of this disclosure, the method for preventing tampering of the hydraulic excavator hour meter further includes:

[0012] If the current hourly count is determined to be a first invalid count, the electronic monitor performs at least one of the following operations:

[0013] Stop hour count;

[0014] Display a warning message, wherein the warning message prohibits tampering with the hour meter;

[0015] The vehicle terminal sends a warning about the risk of hourly meter tampering to the platform.

[0016] In some embodiments of this disclosure, the electronic monitor actively drives changes in engine speed, including:

[0017] The electronic monitor actively drives the engine speed change by driving the throttle actuator.

[0018] In some embodiments of this disclosure, the method for preventing tampering of the hydraulic excavator hour meter further includes:

[0019] In cases where suspicious activity is detected on the hourly meter, the electronic monitor records the duration during which the hydraulic system pressure is zero.

[0020] The electronic monitor determines whether the hydraulic system pressure has been at zero for more than a predetermined period.

[0021] If the hydraulic system pressure remains at zero for a period exceeding the predetermined duration, the system executes the following steps: the electronic monitor actively drives the engine speed change; the electronic monitor collects the current engine speed; and the electronic monitor determines whether the current engine speed matches the set speed.

[0022] In some embodiments of this disclosure, the method for preventing tampering of the hydraulic excavator hour meter further includes:

[0023] If the hydraulic system pressure is zero for no more than the predetermined time, the electronic monitor determines whether the current engine speed is consistent with the set speed.

[0024] When the current engine speed is inconsistent with the set speed, the electronic monitor acquires information on the pressure changes in the hydraulic system.

[0025] The electronic monitor determines whether the pressure changes in the hydraulic system conform to the equipment settings.

[0026] If the hydraulic system pressure changes do not conform to the equipment settings, the electronic monitor determines that the current hourly count is the second invalid count.

[0027] In some embodiments of this disclosure, the method for preventing tampering of the hydraulic excavator hour meter further includes:

[0028] If the current hourly counter is determined to be the second invalid count, the electronic monitor sends an hourly counter tampering risk warning to the platform via the vehicle terminal, suggesting on-site investigation.

[0029] In some embodiments of this disclosure, the electronic monitor determines whether the pressure changes in the hydraulic system conform to the equipment settings by including:

[0030] The electronic monitor determines whether the limits and trends of pressure changes in the hydraulic system conform to the equipment settings.

[0031] In some embodiments of this disclosure, the electronic monitor determines whether the hour meter exhibits suspicious behavior by including:

[0032] Obtain the system voltage based on the hourly counter's changes;

[0033] Determine whether the system voltage is greater than a predetermined voltage threshold.

[0034] If the system voltage is not greater than a predetermined voltage threshold, the hour meter is determined to have suspicious behavior.

[0035] According to another aspect of this disclosure, an electronic monitor is provided, comprising:

[0036] The suspicious behavior identification module is configured to determine whether there is suspicious behavior in the hourly meter when the hourly meter count changes.

[0037] The speed drive module is configured to actively drive the engine speed change by the electronic monitor in the event of suspicious behavior on the hour meter, wherein the engine of the hydraulic excavator is a mechanical engine;

[0038] The engine speed acquisition module is configured to acquire the current engine speed;

[0039] The speed comparison module is configured to determine whether the current engine speed is consistent with the set speed;

[0040] The invalid count identification module is configured to determine the current hourly count as the first invalid count when the current engine speed is inconsistent with the set speed.

[0041] According to another aspect of this disclosure, an electronic monitor is provided, comprising:

[0042] The memory is configured to store instructions;

[0043] The processor is configured to execute the instructions, causing the electronic monitor to perform operations that implement the anti-tampering method for the hydraulic excavator hour meter as described in any of the above embodiments.

[0044] According to another aspect of this disclosure, a tamper-proof system for the hour meter of a hydraulic excavator is provided, including an electronic monitor as described in any of the above embodiments.

[0045] In some embodiments of this disclosure, the anti-tampering system for the hydraulic excavator hour meter further includes at least one of a throttle actuator, a speed sensor, a pressure sensor, and an on-board terminal, wherein:

[0046] The throttle actuator is configured to change the engine speed in response to a drive from an electronic monitor;

[0047] The speed sensor is configured to collect the current engine speed and send it to the electronic monitor;

[0048] A pressure sensor is configured to acquire hydraulic system pressure and send it to an electronic monitor;

[0049] The vehicle-mounted terminal is configured to send an hourly meter tampering risk warning to the platform according to the instructions of the electronic monitor.

[0050] According to another aspect of this disclosure, a hydraulic excavator is provided, including a hydraulic excavator hour meter anti-tampering system as described in any of the above embodiments.

[0051] According to another aspect of this disclosure, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions that, when executed by a processor, implement the anti-tampering method for a hydraulic excavator hour meter as described in any of the above embodiments.

[0052] This disclosure enables tamper-proofing of the hour meter of a hydraulic excavator based on a mechanical engine, effectively preventing the hour meter from being tampered with. Attached Figure Description

[0053] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0054] Figure 1 This is a schematic diagram of some embodiments of the anti-tampering method for the hydraulic excavator hour meter disclosed herein.

[0055] Figure 2 The diagram illustrates some other embodiments of the anti-tampering method for the hydraulic excavator hour meter disclosed herein.

[0056] Figure 3 This is a schematic diagram of some embodiments of the electronic monitor disclosed herein.

[0057] Figure 4 This is a schematic diagram of the structure of some other embodiments of the electronic monitor disclosed herein.

[0058] Figure 5 This is a schematic diagram of some embodiments of the hydraulic excavator hour meter anti-tampering system disclosed herein. Detailed Implementation

[0059] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this disclosure or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0060] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this disclosure.

[0061] At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn according to actual scale.

[0062] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0063] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0064] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0065] The inventors discovered through research that related electronic monitoring systems determine the engine's operating status and perform hourly counts based on signals from the collected speed sensor. If the speed sensor is replaced by a tampering device, the electronic monitoring system cannot recognize it, leading to misjudgments of the engine status and incorrect counts.

[0066] In view of at least one of the above technical problems, this disclosure provides a hydraulic excavator and a method and system for preventing tampering with its hour meter, as well as an electronic monitor. The disclosure will be described below through specific embodiments.

[0067] Figure 1 This is a schematic diagram of some embodiments of the anti-tampering method for the hydraulic excavator hour meter disclosed herein. Figure 1 The embodiments can be executed by the electronic monitor of this disclosure, the anti-tampering system for the hour meter of the hydraulic excavator of this disclosure, or the hydraulic excavator of this disclosure. For example... Figure 1 As shown, Figure 1 The method of the embodiment may include at least one of steps 100 to 400, wherein:

[0068] Step 100: When the hour meter count changes, the electronic monitor determines whether there is any suspicious behavior in the hydraulic excavator's hour meter.

[0069] In some embodiments of this disclosure, step 100 may include at least one of steps 110 to 120, wherein:

[0070] Step 110: The electronic monitor acquires the system voltage based on the hourly counter count changes.

[0071] Step 120: The electronic monitor determines whether the system voltage is greater than the predetermined voltage threshold.

[0072] Step 130: If the system voltage is not greater than a predetermined voltage threshold, the electronic monitor determines that the hour meter has suspicious behavior.

[0073] Step 200: If suspicious behavior is detected by the hour meter, the electronic monitor actively drives the engine speed to change, wherein the engine of the hydraulic excavator is a mechanical engine.

[0074] In some embodiments of this disclosure, the hourly counter changes include instances where the hourly counter increases.

[0075] In some embodiments of this disclosure, step 200, in which the electronic monitor actively drives the engine speed change, may include: the electronic monitor actively drives the engine speed change by driving the throttle actuator.

[0076] In some embodiments of this disclosure, step 200 may include at least one of steps 210 to 230, wherein:

[0077] Step 210: If suspicious behavior is detected by the hourly meter, the electronic monitor counts the duration during which the hydraulic system pressure is zero.

[0078] Step 220: The electronic monitor determines whether the duration of zero pressure in the hydraulic system exceeds the predetermined duration.

[0079] Step 230: If the hydraulic system pressure is zero for a period of time exceeding a predetermined duration, the electronic monitor actively drives the engine speed to change; then, the step of the electronic monitor actively driving the engine speed to change is executed, i.e., step 300 is executed.

[0080] Step 300: The electronic monitor acquires the current engine speed; the electronic monitor determines whether the current engine speed is consistent with the set speed.

[0081] Step 400: If the current engine speed is inconsistent with the set speed, the electronic monitor determines that the current hourly count is the first invalid count.

[0082] In some embodiments of this disclosure, after step 400, the method for preventing tampering with the hydraulic excavator hour meter may further include step 500, wherein:

[0083] Step 500: If the current hourly counter count is determined to be the first invalid count, the electronic monitor performs at least one of the following operations: stops the hourly counter count; displays a warning message, wherein the warning message prohibits tampering with the hourly counter; and sends an hourly counter tampering risk warning to the platform via the vehicle terminal.

[0084] In some embodiments of this disclosure, after step 120, the anti-tampering method for the hydraulic excavator hour meter may further include at least one of steps 600 to 900, wherein:

[0085] Step 600: If the duration of zero hydraulic system pressure does not exceed a predetermined duration, the electronic monitor determines whether the current engine speed is consistent with the set speed.

[0086] Step 700: When the current engine speed is inconsistent with the set speed, the electronic monitor acquires the hydraulic system pressure change information.

[0087] Step 800: The electronic monitor determines whether the pressure changes in the hydraulic system conform to the equipment settings.

[0088] In some embodiments of this disclosure, step 800 may include: an electronic monitor determining whether the limits and trends of pressure changes in the hydraulic system conform to the equipment settings.

[0089] Step 900: If the hydraulic system pressure change does not conform to the equipment settings, the electronic monitor determines that the current hourly count is the second invalid count.

[0090] In some embodiments of this disclosure, after step 900, the method for preventing tampering with the hydraulic excavator hour meter may further include step 910, wherein:

[0091] Step 910: If the current hourly counter is determined to be the second invalid counter, the electronic monitor sends an hourly counter tampering risk warning to the platform through the vehicle terminal, suggesting on-site investigation.

[0092] In response to the technical problems existing in related technologies, this disclosure provides a method for preventing tampering of the hour meter in a hydraulic excavator based on a mechanical engine. The electronic monitor can identify the tampering of the hour meter based on changes in system voltage, hydraulic system pressure, and speed, thereby stopping invalid timing and issuing a "tampering of the hour meter is prohibited" warning.

[0093] This disclosure provides a method for preventing tampering of the hour meter in a hydraulic excavator based on a mechanical engine, which can effectively prevent the hour meter from being tampered with.

[0094] Figure 2 The diagram illustrates some other embodiments of the anti-tampering method for the hydraulic excavator hour meter disclosed herein. Figure 2 The embodiments can be executed by the electronic monitor of this disclosure, the anti-tampering system for the hour meter of the hydraulic excavator of this disclosure, or the hydraulic excavator of this disclosure. For example... Figure 2 As shown, Figure 2 The method of the embodiment may include at least one of steps 21 to 29, wherein:

[0095] Step 21, hourly count changes.

[0096] In some embodiments of this disclosure, the hourly counter changes include instances where the hourly counter increases.

[0097] Step 22: Determine if the system voltage is greater than a predetermined voltage threshold. The electronic monitor determines whether the generator is working based on the system voltage. If the system voltage is greater than the set value, it can be determined that the generator is working, thus determining that the engine has started. At this time, the hour counter is valid; the process ends, and other steps in this embodiment are not executed. Otherwise, if the system voltage is not greater than the predetermined voltage threshold, proceed to step 23.

[0098] Step 23: If the system voltage is not greater than a predetermined voltage threshold, the electronic monitor counts the duration of zero hydraulic system pressure; the electronic monitor determines whether the duration of zero hydraulic system pressure exceeds a predetermined duration. If the duration of zero hydraulic system pressure exceeds the predetermined duration, proceed to step 24; otherwise, if the duration of zero hydraulic system pressure exceeds the predetermined duration, proceed to step 27.

[0099] Step 24: If the hydraulic system pressure remains at zero for a period of time exceeding a predetermined duration, the electronic monitor actively drives the engine speed to change.

[0100] In some embodiments of this disclosure, step 24, in which the electronic monitor actively drives the engine speed change, may include: the electronic monitor actively drives the engine speed change by driving the throttle actuator.

[0101] Step 25: The electronic monitor acquires the current engine speed; the electronic monitor determines whether the current engine speed matches the set speed. If they match, the current hour counter is deemed valid; the process ends, and no further steps in this embodiment are executed. Otherwise, if they do not match, the hour counter is deemed invalid; proceed to step 26.

[0102] Step 26, the electronic monitor performs at least one of the following operations: stops the hour meter counting; displays a warning message, wherein the warning message prohibits tampering with the hour meter; and sends an hour meter tampering risk warning to the platform via the vehicle terminal.

[0103] In some embodiments of this disclosure, step 26 may include: when the current engine speed is inconsistent with the set speed, the electronic monitor determines that the current hour counter count is a first invalid count; when the current hour counter count is determined to be a first invalid count, the electronic monitor stops the hour counter counting and displays a "Do not tamper with hour counter" warning; at the same time, the electronic monitor sends a warning about tampering with the hour counter to the platform through the vehicle terminal.

[0104] Step 27: If the hydraulic system pressure remains at zero for more than a predetermined period, the electronic monitor determines whether the current engine speed matches the set speed. If they match, the current hour counter is deemed valid; the process ends, and other steps in this embodiment are not executed. Otherwise, if they do not match, the hour counter is deemed invalid; proceed to step 28.

[0105] Step 28: When the current engine speed differs from the set speed, the electronic monitor acquires the hydraulic system pressure changes; the electronic monitor determines whether the hydraulic system pressure changes conform to the equipment settings. If they conform to the equipment settings, the current hourly counter is deemed valid; the process ends, and other steps in this embodiment are not executed. Otherwise, if they do not conform to the equipment settings, the hourly counter is deemed invalid; proceed to step 29.

[0106] In some embodiments of this disclosure, step 28, in which the electronic monitor determines whether the pressure change of the hydraulic system conforms to the equipment settings, may include: the electronic monitor determining whether the limits and trends of the pressure change of the hydraulic system conform to the equipment settings.

[0107] Step 29: If the hydraulic system pressure changes do not conform to the equipment settings, the electronic monitor sends an hour meter tampering risk warning to the platform through the vehicle terminal, suggesting on-site investigation.

[0108] In some embodiments of this disclosure, step 29 may include: if the hydraulic system pressure change does not conform to the equipment settings, the electronic monitor determines that the current hourly counter count is a second invalid count; if the current hourly counter count is determined to be a second invalid count, the electronic monitor sends an hourly counter tampering risk warning to the platform through the vehicle terminal, suggesting on-site investigation.

[0109] In some embodiments of this disclosure, step 29 may include: if the pressure changes, restrictions, etc. of the hydraulic system do not conform to the equipment settings, the electronic monitor sends a warning to the platform via the vehicle terminal about the risk of hour meter tampering, and suggests on-site investigation.

[0110] This disclosure addresses the issue of electronic monitoring devices actively driving speed changes and comparing the collected speed with the set speed when suspicious hourly meter behavior is detected, thereby identifying invalid counts.

[0111] This disclosure uses hydraulic system pressure change limits and trend identification hourly timeframes to mitigate the risk of tampering.

[0112] This disclosure provides a method for tamper-proofing the hour meter of a hydraulic excavator based on a mechanical engine, which can effectively improve the accuracy of the hour meter display and avoid the risk of the hour count being tampered with.

[0113] Figure 3 These are schematic diagrams illustrating some embodiments of the electronic monitoring device disclosed herein. Figure 3 As shown, the electronic monitor disclosed herein may include a suspicious behavior identification module 30, a speed drive module 31, a speed acquisition module 32, a speed comparison module 33, and an invalid count identification module 34, wherein:

[0114] The suspicious behavior identification module 30 is configured to determine whether there is suspicious behavior in the hourly meter when the hourly meter count changes.

[0115] In some embodiments of this disclosure, the suspicious behavior identification module 30 is configured to acquire the system voltage when the hour counter count changes; determine whether the system voltage is greater than a predetermined voltage threshold; and determine that the hour counter exhibits suspicious behavior when the system voltage is not greater than the predetermined voltage threshold.

[0116] The speed drive module 31 is configured to actively drive the engine speed to change in the event of suspicious behavior on the hour meter, wherein the engine of the hydraulic excavator is a mechanical engine.

[0117] In some embodiments of this disclosure, the speed drive module 31 is configured to actively drive changes in engine speed by driving the throttle actuator in the event of suspicious behavior in the hour meter.

[0118] The engine speed acquisition module 32 is configured to acquire the current engine speed.

[0119] The speed comparison module 33 is configured to determine whether the current engine speed is consistent with the set speed.

[0120] The invalid count identification module 34 is configured to determine the current hourly count as the first invalid count when the current engine speed is inconsistent with the set speed.

[0121] In some embodiments of this disclosure, the electronic monitor may also be configured to perform at least one of the following operations when the current hourly counter count is determined to be a first invalid count: stop the hourly counter count; display a warning message, wherein the warning message prohibits tampering with the hourly counter; and send an hourly counter tampering risk warning to the platform via the vehicle terminal.

[0122] In some embodiments of this disclosure, the electronic monitor may also be configured to, in the event of suspicious behavior, count the duration of the hydraulic system pressure being zero; determine whether the duration of the hydraulic system pressure being zero exceeds a predetermined duration; and, if the duration of the hydraulic system pressure being zero exceeds the predetermined duration, perform operations such as actively driving engine speed changes, collecting the current engine speed, and determining whether the current engine speed is consistent with the set speed.

[0123] In some embodiments of this disclosure, the electronic monitor may also be configured to determine whether the current engine speed is consistent with the set speed when the hydraulic system pressure is zero for no more than a predetermined period of time; to acquire the hydraulic system pressure change when the current engine speed is inconsistent with the set speed; to determine whether the hydraulic system pressure change conforms to the equipment settings; and to determine that the current hourly counter is a second invalid counter when the hydraulic system pressure change does not conform to the equipment settings.

[0124] In some embodiments of this disclosure, the electronic monitor may also be configured to send an hourly counter tampering risk warning to the platform via the vehicle terminal and suggest on-site investigation if it is determined that the current hourly counter count is a second invalid count.

[0125] In some embodiments of this disclosure, the electronic monitor can be configured to determine whether the limits and trends of hydraulic system pressure changes conform to the equipment settings when determining whether the hydraulic system pressure changes conform to the equipment settings.

[0126] In some embodiments of this disclosure, the electronic monitor of this disclosure can be configured to perform the above embodiments (e.g. Figure 1 or Figure 2 Example 1) describes a method for preventing tampering with the hour meter of a hydraulic excavator.

[0127] Figure 4 This is a schematic diagram illustrating the structure of some other embodiments of the electronic monitor disclosed herein. For example... Figure 4 As shown, the electronic monitor disclosed herein includes a memory 41 and a processor 42.

[0128] Memory 41 is used to store instructions, and processor 42 is coupled to memory 41. Processor 42 is configured to execute instructions stored in memory to implement the above embodiments (e.g., Figure 1 or Figure 2 Example 1) describes a method for preventing tampering with the hour meter of a hydraulic excavator.

[0129] like Figure 4 As shown, the electronic monitor also includes a communication interface 43 for exchanging information with other devices. Additionally, the electronic monitor includes a bus 44, through which the processor 42, communication interface 43, and memory 41 communicate with each other.

[0130] The memory 41 may include high-speed RAM, and may also include non-volatile memory, such as at least one disk storage device. The memory 41 may also be a memory array. The memory 41 may also be divided into blocks, and the blocks may be combined into virtual volumes according to certain rules.

[0131] Furthermore, processor 42 may be a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present disclosure.

[0132] This disclosure addresses the issue of electronic monitoring devices actively driving speed changes and comparing the collected speed with the set speed when suspicious hourly meter behavior is detected, thereby identifying invalid counts.

[0133] This disclosure uses hydraulic system pressure change limits and trend identification hourly timeframes to mitigate the risk of tampering.

[0134] Figure 5 These are schematic diagrams illustrating some embodiments of the anti-tampering system for the hydraulic excavator hour meter disclosed herein. Figure 5 As shown, the anti-tampering system for the hydraulic excavator hour meter of this disclosure may include an electronic monitor 51, wherein:

[0135] The electronic monitor 51 can be any of the embodiments described above (e.g., Figure 3 or Figure 4 The electronic monitor described in the embodiment).

[0136] In some embodiments of this disclosure, such as Figure 5 As shown, the anti-tampering system for the hydraulic excavator hour meter also includes at least one of a throttle actuator 52, a speed sensor 53, a pressure sensor 54, and an on-board terminal 55, wherein:

[0137] Throttle actuator 52 is configured to change engine speed in response to a drive from an electronic monitor.

[0138] The speed sensor 53 is configured to collect the current engine speed and send it to the electronic monitor.

[0139] Pressure sensor 54 is configured to acquire hydraulic system pressure and send it to an electronic monitor.

[0140] The vehicle terminal 55 is configured to send an hour meter tampering risk warning to the platform according to the instructions of the electronic monitor.

[0141] According to another aspect of this disclosure, a hydraulic excavator is provided, comprising any of the embodiments described above (e.g., Figure 5 The anti-tampering system for the hydraulic excavator hour meter described in the embodiment).

[0142] According to another aspect of this disclosure, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions that, when executed by a processor, implement any of the embodiments described above (e.g., Figure 1 or Figure 2 The method for preventing tampering of the hydraulic excavator hour meter as described in the embodiment)

[0143] The computer-readable storage medium disclosed herein can be implemented as a non-transitory computer-readable storage medium.

[0144] Those skilled in the art will understand that embodiments of this disclosure can be provided as methods, apparatus, or computer program products. Therefore, this disclosure can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this disclosure can take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0145] This disclosure is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this disclosure. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1A device that provides the functions specified in one or more boxes.

[0146] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0147] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0148] The electronic monitor, speed drive module, speed acquisition module, speed comparison module, and invalid count identification module described above can be implemented as a general-purpose processor, programmable logic controller (PLC), digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or any suitable combination thereof for performing the functions described herein.

[0149] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments of this disclosure can be implemented in hardware. The hardware can be implemented as a general-purpose processor, programmable logic controller, digital signal processor, application-specific integrated circuit, field-programmable gate array or other programmable logic device, discrete gate or transistor logic device, discrete hardware component or any suitable combination thereof for executing the methods of this disclosure.

[0150] This concludes the detailed description of the present disclosure. To avoid obscuring the concept of the disclosure, some details known in the art have not been described. Those skilled in the art will fully understand how to implement the technical solutions disclosed herein based on the above description.

[0151] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware, or by a program instructing the relevant hardware to implement them. The program can be stored in a non-transitory computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0152] The description in this disclosure is provided for illustrative and descriptive purposes only and is not intended to be exhaustive or to limit the disclosure to its forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of this disclosure and to enable those skilled in the art to understand this disclosure and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A method for preventing tampering of the hour meter of a hydraulic excavator, comprising: When the hourly meter count changes, the electronic monitor determines whether the hourly meter is behaving suspiciously. In the event of suspicious activity detected by the hourly meter, the electronic monitor actively drives the engine speed of the hydraulic excavator to change, wherein the engine of the hydraulic excavator is a mechanical engine. The electronic monitor obtains the current engine speed; The electronic monitor determines whether the current engine speed matches the set speed. If the current engine speed is inconsistent with the set speed, the electronic monitor determines that the current hourly count is the first invalid count; The electronic monitor determines whether the hour meter exhibits suspicious behavior by including: Obtain the system voltage based on the hourly counter's changes; Determine whether the system voltage is greater than a predetermined voltage threshold. If the system voltage is not greater than a predetermined voltage threshold, the hour meter is deemed to have engaged in suspicious behavior.

2. The anti-tampering method for the hydraulic excavator hour meter according to claim 1 further includes: If the current hourly count is determined to be a first invalid count, the electronic monitor performs at least one of the following operations: Stop hour count; Display a warning message, wherein the warning message prohibits tampering with the hour meter; The vehicle terminal sends a warning about the risk of hourly meter tampering to the platform.

3. The hydraulic excavator hour meter tamper prevention method according to claim 1 or 2, wherein, The electronic monitor actively drives the engine speed changes of the hydraulic excavator, including: The electronic monitor actively drives the engine speed change by driving the throttle actuator.

4. The anti-tampering method for the hydraulic excavator hour meter according to claim 1 or 2 further includes: In cases where suspicious activity is detected on the hourly meter, the electronic monitor records the duration during which the hydraulic system pressure is zero. The electronic monitor determines whether the hydraulic system pressure has been at zero for more than a predetermined period. If the hydraulic system pressure remains at zero for a period exceeding a predetermined duration, the system executes the following steps: the electronic monitor actively drives the hydraulic excavator to change its engine speed; the electronic monitor acquires the current engine speed; and the electronic monitor determines whether the current engine speed matches the set speed.

5. The anti-tampering method for the hydraulic excavator hour meter according to claim 4 further includes: If the hydraulic system pressure is zero for no more than the predetermined time, the electronic monitor determines whether the current engine speed is consistent with the set speed. When the current engine speed is inconsistent with the set speed, the electronic monitor acquires information on the pressure changes in the hydraulic system. The electronic monitor determines whether the pressure changes in the hydraulic system conform to the equipment settings. If the hydraulic system pressure changes do not conform to the equipment settings, the electronic monitor determines that the current hourly count is the second invalid count.

6. The anti-tampering method for the hydraulic excavator hour meter according to claim 5 further includes: If the current hourly counter is determined to be the second invalid count, the electronic monitor sends an hourly counter tampering risk warning to the platform via the vehicle terminal, suggesting on-site investigation.

7. The hydraulic excavator hour meter tamper-evident method of claim 5, wherein, The electronic monitor determines whether the pressure changes in the hydraulic system conform to the equipment settings, including: The electronic monitor determines whether the limits and trends of pressure changes in the hydraulic system conform to the equipment settings.

8. An electronic monitor, comprising: The suspicious behavior identification module is configured to determine whether there is suspicious behavior in the hourly meter when the hourly meter count changes. A speed drive module is configured to, in the event of suspicious activity on the hour meter, actively drive the engine speed of the hydraulic excavator to change, wherein the engine of the hydraulic excavator is a mechanical engine. The engine speed acquisition module is configured to acquire the current engine speed; The speed comparison module is configured to determine whether the current engine speed is consistent with the set speed; The invalid count identification module is configured to determine the current hourly count as the first invalid count when the current engine speed is inconsistent with the set speed. The suspicious behavior identification module is configured to acquire the system voltage when the hour meter count changes; determine whether the system voltage is greater than a predetermined voltage threshold; and determine that the hour meter has suspicious behavior if the system voltage is not greater than the predetermined voltage threshold.

9. An electronic monitor, comprising: The memory is configured to store instructions; The processor is configured to execute the instructions, causing the electronic monitor to perform operations that implement the anti-tampering method for the hydraulic excavator hour meter as described in any one of claims 1-7.

10. A tamper-proof system for a hydraulic excavator hour meter, comprising the electronic monitor as described in claim 9 or 8.

11. The anti-tampering system for the hydraulic excavator hour meter according to claim 10, further comprising at least one of a throttle actuator, a speed sensor, a pressure sensor, and an on-board terminal, wherein: The throttle actuator is configured to change the engine speed in response to a drive from an electronic monitor; The speed sensor is configured to collect the current engine speed and send it to the electronic monitor; A pressure sensor is configured to acquire hydraulic system pressure and send it to an electronic monitor; The vehicle-mounted terminal is configured to send an hourly meter tampering risk warning to the platform according to the instructions of the electronic monitor.

12. A hydraulic excavator, with the anti-tampering system for the hydraulic excavator hour meter as described in claim 11 or 10.

13. A computer readable storage medium, wherein, The computer-readable storage medium stores computer instructions that, when executed by a processor, implement the anti-tampering method for hydraulic excavator hour gauges as described in any one of claims 1-7.

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