A real-time fault diagnosis and monitoring system and method for excavators

Abstract

The present application relates to the technical field of excavators, and in particular to a real-time fault diagnosis monitoring system and method for excavators, which collects the test engine fuel consumption power of the diagnostic scene where the excavator is located in the construction environment; if the test engine fuel consumption power is greater than the first power upper limit, the diagnostic scene is used as a benchmark, at least one historical engine fuel consumption power is collected, and the historical power oscillation log is diagnosed; at least one current engine fuel consumption power is collected, and based on each current engine fuel consumption power, the current power oscillation log is diagnosed; data matching outputs the first and second matching rates; if the first matching rate is not greater than the matching rate upper limit and the second matching rate is greater than the matching rate upper limit, the terminal of the construction party issues an excavator fault reminder associated with the diagnostic scene. The present invention is applied to the fault diagnosis of energy-saving excavators, and can reasonably diagnose the faults of the excavator in terms of energy saving and working power, thereby ensuring the working efficiency of the excavator to the greatest extent.

Description

Technical Field

[0001] The present application relates to the technical field of excavators, and in particular to a real-time fault diagnosis and monitoring system and method for excavators. Background Art

[0002] With the increasing infrastructure construction, excavators are widely used in many fields such as water conservancy projects, engineering construction and open-pit mining. In order to ensure the safety and work efficiency of the excavators, it is very necessary to perform fault pre-diagnosis on the excavators.

[0003] Compared with traditional hydraulic excavators, new excavators control the working power by adding energy storage elements such as accumulators and gas cylinders, which can not only ensure the normal performance of the excavator but also save energy to the greatest extent. However, in the existing technology, there is still a lack of clear and specific solutions for fault diagnosis of this type of excavator. It is difficult to reasonably diagnose the fault of the excavator in terms of energy saving and working power, and it is impossible to ensure the working efficiency of the excavator to the greatest extent. Summary of the invention

[0004] To achieve the above objectives, this application provides the following technical solutions:

[0005] According to a first aspect of the present invention, the present invention claims protection for a real-time fault diagnosis and monitoring method for an excavator, the method comprising:

[0006] Collect the test engine fuel consumption power of the diagnostic scenario where the excavator is located in the construction environment;

[0007] If the test engine fuel consumption power is greater than the first power upper limit, taking the diagnosis scenario as a reference, collecting at least one historical engine fuel consumption power along the completed progress of the construction process of the construction environment, and diagnosing the historical power oscillation log based on each of the historical engine fuel consumption powers;

[0008] Taking the diagnosis scenario as a reference, collecting at least one current engine fuel consumption power along the progress of the construction process of the construction environment, and diagnosing a current power oscillation log based on each of the current engine fuel consumption powers;

[0009] Matching the historical power oscillation log with a configured reference power oscillation log, outputting a first matching rate, and matching the current power oscillation log with the reference power oscillation log, outputting a second matching rate, wherein the reference power oscillation log is a power oscillation log of the engine fuel consumption from a generation source with a position interval;

[0010] If the first matching rate is not greater than the matching rate upper limit and the second matching rate is greater than the matching rate upper limit, an excavator fault reminder associated with the diagnostic scenario is issued to the terminal of the construction party.

[0011] Furthermore, the method further comprises:

[0012] If the current cooling water temperature and the current gas cylinder pressure of the diagnosis scenario both exceed the associated upper limits, the construction state configuration of the construction environment is corrected to a test state configuration;

[0013] Diagnose a first diagnosis scenario in which the cooling water temperature and the gas cylinder pressure in the construction environment do not exceed associated upper limits, and count the engine fuel consumption power in each of the first diagnosis scenarios;

[0014] Filtering a first test diagnosis scenario from each of the first diagnosis scenarios, and diagnosing a first construction plan stable period from all of the first test diagnosis scenarios to the diagnosis scenario, wherein the engine fuel consumption power of the first test diagnosis scenario is greater than the second power upper limit and does not exceed the first power upper limit;

[0015] The construction environment is subjected to construction processing according to the test state configuration and all the first construction plan stabilization cycles.

[0016] Further, the performing construction processing on the construction environment according to the test state configuration and all the first construction plan stable cycles specifically includes:

[0017] diagnosing the interval distance between all the first test diagnosis scenes and the diagnosis scene;

[0018] Diagnosing engine fuel consumption from an associated first test diagnostic scenario interval to a first interval stable period of the diagnostic scenario according to the interval distance and the test state configuration;

[0019] According to the increasing arrangement of the first interval stable period, the construction environment is subjected to construction processing with the associated first construction plan stable period and the test state configuration.

[0020] Further, the step of performing construction processing on the construction environment according to the increasing arrangement of the first interval stable cycle and the associated first construction plan stable cycle and the test state configuration specifically includes:

[0021] Based on the engine fuel consumption power of all the first test diagnosis scenarios, diagnose the associated first construction stability period, the higher the engine fuel consumption power, the longer the associated first construction stability period;

[0022] According to the increasing arrangement of the first interval stable period, the construction environment is subjected to construction processing of the associated first construction stable period in sequence with the associated first construction plan stable period and the test state configuration.

[0023] Furthermore, the method further comprises:

[0024] diagnosing the distance that the construction party has not traveled to reach the diagnosis scene;

[0025] If the untraveled distance does not exceed the upper limit of the distance, diagnose a second diagnosis scenario in which the cooling water temperature and the gas cylinder pressure in the construction environment do not exceed the associated upper limits, and count the engine fuel consumption power of each of the second diagnosis scenarios;

[0026] Filtering the second test diagnosis scenario from each of the second diagnosis scenarios, and diagnosing the diagnosis scenario to the second construction plan stable period of all the second test diagnosis scenarios, wherein the engine fuel consumption power of the second test diagnosis scenario does not exceed the second power upper limit;

[0027] The construction environment is subjected to construction processing according to the test state configuration and all the second construction plan stabilization cycles.

[0028] Further, the performing construction processing on the construction environment according to the test state configuration and all the second construction plan stable cycles specifically includes:

[0029] Based on the cooling water temperature and the cylinder pressure of all the second test diagnosis scenarios, diagnose the severity of the associated working fault, the higher the severity of the working fault, the more likely the associated second test diagnosis scenario is to have a fault;

[0030] Based on the severity of the working fault, diagnose the associated second construction stability period, the higher the severity of the working fault, the longer the associated second construction stability period;

[0031] According to the arrangement of the severity of the working faults from large to small, the construction environment is subjected to construction processing of the associated second construction stable period in sequence with the associated second construction plan stable period and the test state configuration.

[0032] Furthermore, the method further comprises:

[0033] When the first matching rate is greater than the matching rate upper limit, diagnosing a historical diagnosis blank interval of the diagnosis scenario in the construction process;

[0034] Based on the current construction state configuration, calculating the second interval stable period of the engine fuel consumption from all the historical diagnosis blank intervals to the associated latest diagnosis scene, the latest diagnosis scene being located at the current of the associated historical diagnosis blank interval;

[0035] All the second interval stability periods are compared with the upper limit of the stability period. If the second interval stability period is greater than the upper limit of the stability period, a blank interval check reminder of the associated historical diagnosis blank interval is sent to the terminal of the construction party.

[0036] According to a second aspect of the present invention, the present invention claims protection for a real-time fault diagnosis and monitoring system for an excavator, comprising:

[0037] The power collection unit collects the fuel consumption power of the test engine in the diagnostic scenario where the excavator is located in the construction environment;

[0038] a first diagnostic unit, if the test engine fuel consumption power is greater than a first power upper limit, taking the diagnostic scenario as a reference, collecting at least one historical engine fuel consumption power along the completed progress of the construction process of the construction environment, and diagnosing a historical power oscillation log based on each of the historical engine fuel consumption powers;

[0039] a second diagnosis unit, taking the diagnosis scenario as a reference, collecting at least one current engine fuel consumption power along the progress of the construction process of the construction environment, and diagnosing a current power oscillation log based on each of the current engine fuel consumption powers;

[0040] a log matching unit, matching the historical power oscillation log with a configured reference power oscillation log, outputting a first matching rate, and matching the current power oscillation log with the reference power oscillation log, outputting a second matching rate, wherein the reference power oscillation log is a power oscillation log of the engine fuel consumption from a generation source with a position interval;

[0041] A work reminder unit, which sends an excavator fault reminder associated with the diagnostic scenario to a terminal of the construction party if the first matching rate is not greater than the matching rate upper limit and the second matching rate is greater than the matching rate upper limit;

[0042] The excavator real-time fault diagnosis and monitoring system is used to execute the excavator real-time fault diagnosis and monitoring method.

[0043] The present application relates to the technical field of excavators, and in particular to a real-time fault diagnosis monitoring system and method for excavators, which collects the test engine fuel consumption power of the diagnostic scene where the excavator is located in the construction environment; if the test engine fuel consumption power is greater than the first power upper limit, the diagnostic scene is used as a benchmark, at least one historical engine fuel consumption power is collected, and the historical power oscillation log is diagnosed; at least one current engine fuel consumption power is collected, and based on each current engine fuel consumption power, the current power oscillation log is diagnosed; data matching outputs the first and second matching rates; if the first matching rate is not greater than the matching rate upper limit and the second matching rate is greater than the matching rate upper limit, the terminal of the construction party issues an excavator fault reminder associated with the diagnostic scene. The present invention is applied to the fault diagnosis of energy-saving excavators, and can reasonably diagnose the faults of the excavator in terms of energy saving and working power, thereby ensuring the working efficiency of the excavator to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1A workflow diagram of a real-time fault diagnosis and monitoring method for an excavator claimed in an embodiment of the present application;

[0045] Figure 2 This is a structural module diagram of a real-time fault diagnosis and monitoring system for an excavator claimed for protection in an embodiment of the present application. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0047] The terms "first", "second" and "third" in this application only describe the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second" and "third" can explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. All progress indicators (such as up, down, left, right, front, back...) in the embodiments of this application only explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the progress indicator also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0048] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The presence of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0049] See also Figure 1 The present application embodiment discloses a flow chart of a method for real-time fault diagnosis and monitoring of an excavator, which can be implemented by a computer program or run on a real-time fault diagnosis and monitoring system for an excavator. The computer program can be integrated into an application or run as an independent tool application, specifically including:

[0050] S101: Collecting the fuel consumption power of a test engine in a diagnostic scenario where an excavator is located in a construction environment.

[0051] Specifically, in an embodiment of the present application, there are multiple excavators in the construction environment, and all excavators are associated with a diagnostic scene, that is, the location scene of the excavator can be regarded as an associated diagnostic scene. The diagnostic scene is equipped with an engine fuel consumption sensor, a cooling water temperature sensor, and a gas cylinder pressure sensor, etc., to realize the diagnosis of various data of the excavator for effective work diagnosis. The test engine fuel consumption power is the engine fuel consumption power of the diagnostic scene at the current time, that is, the engine fuel consumption power at the excavator. Among them, the excavator refers to an energy-saving excavator that recovers the gravitational potential energy of the descending working device through the boom cylinder and converts it into hydraulic energy. The hydraulic energy enters the accumulator through the energy-saving valve. The energy is finally stored in the high-pressure gas cylinder. When the working device is lifted again with load, the energy in the accumulator is released to lift the boom. This cycle is repeated to reduce the lifting load of the working device, reduce the engine power output, and achieve the purpose of energy saving. In addition, a real-time fault diagnosis and monitoring method for an excavator disclosed in an embodiment of the present application should be in a cloud platform, that is, the execution entity is the cloud platform, and the cloud platform is connected to the engine fuel consumption sensor of the diagnosis scene through a wireless network. The cloud platform can be an independent physical cloud platform, or it can be a cloud platform cluster or distributed system composed of multiple physical cloud platforms.

[0052] A feasible way to collect the test engine fuel consumption power is: after the engine fuel consumption sensor collects the test engine fuel consumption power, it sends the test engine fuel consumption power to the cloud platform, and finally the cloud platform collects the test engine fuel consumption power of the diagnostic scene where the excavator is located. In other embodiments, the engine fuel consumption sensor can also be wirelessly connected to the diagnostic personnel's terminal, and the terminal can be a tablet computer or a personal computer. The terminal is installed with a client related to the excavator diagnostic reminder, and the cloud platform can be the client's background cloud platform. After the client receives the test engine fuel consumption power sent by the engine fuel consumption sensor, it forwards it to the cloud platform and finally collects the test engine fuel consumption power.

[0053] S102: If the test engine fuel consumption power is greater than the first power upper limit, the diagnostic scenario is used as a benchmark, at least one historical engine fuel consumption power is collected along the completed progress of the construction process of the construction environment, and based on each historical engine fuel consumption power, the historical power oscillation log is diagnosed.

[0054] Specifically, after the test engine fuel consumption power diagnosis, the test engine fuel consumption power is compared with the first power upper limit. If the test engine fuel consumption power is greater than the first power upper limit, the first power upper limit is empirically set to 40 liters / hour, which is the critical value for judging whether the engine fuel consumption power at the excavator is faulty. This indicates that the current engine fuel consumption power at the excavator is relatively high, which is probably caused by the combustion of more fuel. The fault that occurs is relatively large. At this time, the excavator fault reminder is not directly issued to avoid false alarms. Further verification is required. Then, the construction progress of the construction environment at the current time is collected through the configured construction plan stable cycle sensor, and then the environmental diagnosis monitor starts from this diagnosis scene and cruises along the completed progress of the construction process. During the cruise, at least one historical engine fuel consumption power is collected through this environmental diagnosis monitor. Further, based on each historical engine fuel consumption power, a historical power oscillation log associated with this diagnosis scene is drawn, that is, the engine fuel consumption oscillation log from the historical scene to this diagnosis scene, so as to better characterize the engine fuel consumption interval from the historical scene to this diagnosis scene. In other embodiments, after the configured number of historical engine fuel consumption power is collected through the environmental diagnostic monitor, the cruise diagnostic task of the environmental diagnostic monitor can be terminated. The historical scene refers to the scene of the diagnostic scene history based on the construction process. The historical engine fuel consumption power is the engine fuel consumption power of the historical scene.

[0055] S103: Taking the diagnosis scenario as a reference, collecting at least one current engine fuel consumption power along the progress of the construction process of the construction environment, and diagnosing the current power oscillation log based on each current engine fuel consumption power.

[0056] Specifically, after the diagnosis of the historical power oscillation log, the environmental diagnostic monitor is controlled to start from this diagnostic scene, cruise along the stable cycle of the construction plan of the construction process, and collect the current engine fuel consumption power of at least one current scene of this diagnostic scene during the cruise. Further, based on each current engine fuel consumption power, draw the current power oscillation log associated with this diagnostic scene, that is, the engine fuel consumption power oscillation log from this diagnostic scene to the current scene. Thereby better representing the engine fuel consumption interval from this diagnostic scene to the current scene. Among them, the current scene refers to the current scene of this diagnostic scene based on the construction process. The current engine fuel consumption power is the engine fuel consumption power of the current scene. In other embodiments, after the configured number of current engine fuel consumption powers are collected by the environmental diagnostic monitor, the cruise diagnosis task of the environmental diagnostic monitor can be ended.

[0057] S104: Match the historical power oscillation log with the configured reference power oscillation log, output a first matching rate, and match the current power oscillation log with the reference power oscillation log, output a second matching rate.

[0058] Specifically, a configured reference power oscillation log is retrieved from a database, and the reference power oscillation log is a power oscillation log of the engine fuel consumption from the generation source with the position interval. The historical power oscillation log and the current power oscillation log are matched with the reference power oscillation log respectively, and a first matching rate associated with the historical power oscillation log and a second matching rate associated with the current power oscillation log are output, wherein a feasible matching method is: by matching the historical power oscillation log and the current power oscillation log with the reference power oscillation log respectively. In other embodiments, the historical power oscillation log and the current power oscillation log may also be matched with the reference power oscillation log respectively.

[0059] In this embodiment, when obtaining the first matching rate and the second matching rate, the power oscillation values ​​in the power oscillation log at the same time in the reference power oscillation log are compared with the historical power oscillation log and the current power oscillation log respectively to obtain the percentage d% of the difference between the two, and (100%-d%) is used as the corresponding first matching rate or second matching rate.

[0060] S105: If the first matching rate is not greater than the matching rate upper limit and the second matching rate is greater than the matching rate upper limit, an excavator fault reminder associated with the diagnostic scenario is issued to the terminal of the construction party.

[0061] Specifically, after the first matching rate and the second matching rate are diagnosed, the first matching rate and the second matching rate are compared with the matching rate upper limit respectively. If the first matching rate is not greater than the matching rate upper limit, and the second matching rate is greater than the matching rate upper limit, it means that the historical power oscillation log is not the power oscillation log of the engine fuel consumption from the generation source interval to this diagnostic scene, which further indicates that there is no engine fuel consumption generation source in the history of this diagnostic scene. At the same time, it also means that the current power oscillation log is the power oscillation log of the engine fuel consumption from the generation source interval to the current scene, which further indicates that there is an engine fuel consumption generation source in the history of the current scene, thus finally verifying that this diagnostic scene is the engine fuel consumption generation source, and the engine fuel consumption power of the scene where it is located is too high, indicating that there is more fuel in it, and the associated excavator has a larger fault, then the excavator fault reminder associated with this diagnostic scene is sent to the terminal of the construction party, so as to remind the construction party to go to check and handle it. Otherwise, it means that the engine fuel consumption power of this diagnostic scene is too high, which is most likely caused by the engine fuel consumption interval of other scenes, and the excavator fault reminder associated with this diagnostic scene is not issued. Thereby improving the accuracy of the excavator work reminder.

[0062] Among them, in this embodiment, the upper limit of the matching rate represents a pre-set matching rate value, which is empirically set to 95%. If the first matching rate is not greater than the upper limit of the matching rate, it indicates that the historical power oscillation log and the reference power oscillation log do not match. If the second matching rate is greater than the upper limit of the matching rate, it indicates that the current power oscillation log matches the reference power oscillation log. In other words, the historical operation is normal, and the current operation is abnormal, and an excavator fault reminder associated with the diagnostic scenario is issued to the construction party's terminal.

[0063] The embodiment of the present application discloses another method for real-time fault diagnosis and monitoring of excavators, which can be implemented by a computer program or run on a real-time fault diagnosis and monitoring system for excavators based on the von Neumann system. The computer program can be integrated into an application or run as an independent tool application, specifically including:

[0064] S201: Collecting the fuel consumption power of the test engine of the diagnostic scene where the excavator is located in the construction environment.

[0065] S202: If the test engine fuel consumption power is greater than the first power upper limit, the diagnostic scenario is used as a benchmark, at least one historical engine fuel consumption power is collected along the completed progress of the construction process of the construction environment, and based on each historical engine fuel consumption power, the historical power oscillation log is diagnosed.

[0066] S203: Taking the diagnosis scenario as a reference, collecting at least one current engine fuel consumption power along the progress of the construction process of the construction environment, and diagnosing the current power oscillation log based on each current engine fuel consumption power.

[0067] S204: Match the historical power oscillation log with the configured reference power oscillation log, output a first matching rate, and match the current power oscillation log with the reference power oscillation log, output a second matching rate.

[0068] S205: If the first matching rate is not greater than the matching rate upper limit and the second matching rate is greater than the matching rate upper limit, an excavator fault reminder associated with the diagnostic scenario is issued to the terminal of the construction party.

[0069] For details, please refer to steps S101-S105, which will not be described in detail here.

[0070] S206: If the current cooling water temperature and the current gas cylinder pressure of the diagnosis scenario both exceed the associated upper limits, the construction state configuration of the construction environment is corrected to the test state configuration.

[0071] Specifically, the current cooling water temperature and current gas cylinder pressure of this diagnostic scene are collected through the cooling water temperature sensor and cooling water temperature sensor set in the diagnostic scene, and the current cooling water temperature is compared with the associated upper limit, and the current gas cylinder pressure is compared with the associated upper limit. If the current cooling water temperature and the current gas cylinder pressure both exceed the associated upper limit, it means that the temperature cylinder pressure of this diagnostic scene is too high, which will aggravate the fuel combustion rate and excavator loss, accelerate the excavator work, and need to take measures to suppress the work, so increase the construction intensity of the construction environment, enhance the effect of temperature and pressure control, and suppress the fuel combustion rate and excavator loss to a certain extent. The specific implementation method is: based on the current cooling water temperature and the current gas cylinder pressure, the state configuration matching table configured in the database is used to match the current cooling water temperature, the current gas cylinder pressure and the associated test state configuration. The state configuration matching table includes different cooling water temperature and gas cylinder pressure combinations and associated construction state configurations. The higher the cooling water temperature and gas cylinder pressure, the larger the matching construction state configuration. Among them, the data in the state configuration matching table are all set based on human experience;

[0072] The upper limit of the correlation is 90 degrees Celsius or 20 MPa.

[0073] S207: diagnose the first diagnosis scenarios in which the cooling water temperature and the gas cylinder pressure in the construction environment do not exceed the associated upper limits, and count the engine fuel consumption power of each first diagnosis scenario.

[0074] S208: Filter the first test diagnosis scenario from each first diagnosis scenario, and diagnose the first construction plan stable period of all the first test diagnosis scenarios to the diagnosis scenario, and the engine fuel consumption power of the first test diagnosis scenario is greater than the second power upper limit and does not exceed the first power upper limit.

[0075] Specifically, further, a first diagnostic scenario is filtered out from the non-travel diagnostic scenarios other than this diagnostic scenario in the construction environment, wherein the cooling water temperature and the gas cylinder pressure do not exceed the associated upper limits, that is, the warm gas cylinder pressure is at a normal level, which is not conducive to the fuel combustion rate and excavator loss. Specifically, the associated cooling water temperature and gas cylinder pressure are collected by the cooling water temperature sensor and gas cylinder pressure sensor set in the non-travel diagnostic scenario. Further, the engine fuel consumption power of each first diagnostic scenario is collected, and the first test diagnostic scenario whose engine fuel consumption power is greater than the second power upper limit and does not exceed the first power upper limit is filtered out from each first diagnostic scenario, wherein the second power upper limit is set to 30 liters / hour as the critical value of the engine fuel consumption power that affects the combustion effect of the excavator and causes a reduction in economic value. If the engine fuel consumption power is high, the combustion effect of the excavator will be affected, and the economic value will be reduced. This further shows that although the engine fuel consumption power of the first test diagnosis scenario has not reached the fault level, it will reduce the economic value of the excavator to a certain extent after a long time. Measures need to be taken to reduce the engine fuel consumption power of the first test diagnosis scenario. Based on the location information of all first test diagnosis scenarios and diagnosis scenarios, the progress information of all first test diagnosis scenarios to this diagnosis scenario is diagnosed, that is, the stable period of the first construction plan, wherein the location information can be specifically diagnosed through the GPS unit of the corresponding scenario.

[0076] S209: Perform construction processing on the construction environment according to the test state configuration and all first construction plan stabilization cycles.

[0077] Specifically, based on the location information of all first test diagnostic scenes and this diagnostic scene, the distance between all first test diagnostic scenes and this diagnostic scene, i.e., the interval distance, is diagnosed. For a single first test diagnostic scene, the interval distance between it and the diagnostic scene is divided by the test state configuration, and the engine fuel consumption is output from the first interval stable period from this first test diagnostic scene to this diagnostic scene. The smaller the first interval stable period, when the construction is carried out with the construction process as the associated first construction plan stable period, the engine fuel consumption of the associated first test diagnostic scene is blown to the diagnostic scene in a shorter time. Furthermore, according to the increasing arrangement of the first interval stability cycle, the construction system in the construction environment is controlled by the first construction plan stability cycle and the test state configuration associated with the first interval stability cycle to perform construction processing. The smaller the first interval stability cycle, the more priority is given to blowing the engine fuel consumption from the associated first test diagnosis scene to the diagnosis scene according to the associated first construction plan stability cycle. This can not only reduce the power of the engine fuel consumption in the first test diagnosis scene and avoid the economic quality of the excavator in the associated excavator to decline, but also quickly blow the engine fuel consumption in the high-power scene of the engine fuel consumption in the construction environment to the diagnosis scene, so that the engine fuel consumption power at the diagnosis scene increases significantly, which has a strong suppression effect on the fuel of this diagnosis scene, avoiding the continuous increase of working failures of the excavator in this diagnosis scene or further deterioration of the working conditions. In addition, it can also play the role of normal construction temperature and pressure control. It should be noted that in the embodiment of the present application, the construction system is composed of construction radiators installed on the baffles around the construction environment. Based on the first construction plan stability cycle, the associated construction radiator is turned on to make its construction process consistent with the first construction plan stability cycle;

[0078] In this embodiment, the distance between the center positions of the two construction scenes is used as the interval distance; and the time difference between the completion of the two constructions is used as the interval stabilization period.

[0079] In other embodiments, in the process of performing construction processing on the construction environment according to the ascending arrangement of the first interval stable cycle, with the associated first construction plan stable cycle and the test state configuration, the first construction stable cycle associated with the engine fuel consumption power is matched from the configured first construction stable cycle matching table based on the engine fuel consumption power of the first test diagnosis scenario. The higher the engine fuel consumption power, the longer it takes to fully reduce the engine fuel consumption power, and the larger the associated first construction stable cycle, wherein the first construction stable cycle matching table includes different engine fuel consumption powers and associated first construction stable cycles, all of which are set based on human experience. Further, according to the ascending arrangement of the first interval stable cycle, the construction environment is sequentially processed with the associated first construction plan stable cycle and the test state configuration, and the stable cycle of the construction processing is the associated first construction stable cycle.

[0080] In another embodiment, after sending the excavator fault reminder of this diagnostic scenario to the terminal of the construction party, the construction party's location information is diagnosed through the construction party, and based on the construction party's location information and the location information of this diagnostic scenario, the distance that the construction party has not traveled to reach this diagnostic scenario for viewing is diagnosed. If the distance that has not traveled does not exceed the upper limit of the distance, it means that the construction party is about to reach this diagnostic scenario. In order to avoid excessive engine fuel consumption in this diagnostic scenario causing damage to the construction party's body, it is necessary to blow out the engine fuel consumption of this diagnostic scenario. Then, a second diagnostic scenario in which the uneven cooling water temperature and gas cylinder pressure do not exceed the associated upper limit is selected from each untraveled diagnostic scenario, that is, a scenario in which a fuel failure occurs. Then, the engine fuel consumption power of all second diagnostic scenarios is collected through the engine fuel consumption sensor, and the second test diagnostic scenario in which the engine fuel consumption power does not exceed the second power upper limit is filtered out from each second diagnostic scenario. Further, based on the location information of all second test diagnostic scenarios and the location information of this diagnostic scenario, the second construction plan stable period from the diagnostic scenario to all second test diagnostic scenarios is diagnosed.

[0081] Finally, under the test state configuration, the construction environment is processed in turn with each second construction plan stable cycle, so as to reduce the engine fuel consumption power of this diagnostic scenario, reduce the harm to the construction party, and also make the engine fuel consumption interval to the scenario where there is a fuel failure, avoiding its development into work. The specific process is: based on the cooling water temperature and gas cylinder pressure of all second test diagnostic scenarios, the associated work fault severity is matched from the fault severity matching table configured in the database. The higher the severity of the work fault, the more likely the associated second test diagnostic scenario is to produce fuel and the more likely it is to have a fault. The fault severity matching table includes combinations of different cooling water temperatures, gas cylinder pressures, and the associated work construction plan stable cycle severity, all of which are set based on human experience.

[0082] Furthermore, based on the severity of the stability cycle of the work construction plan, the associated second construction stability cycle is matched from the configured second construction stability cycle matching table. The higher the severity of the work fault, the longer the associated second test diagnosis scenario requires for construction to control temperature and / or pressure, and the longer the associated second construction stability cycle. The second construction stability cycle matching table includes different severity levels of stability cycles of work construction plans and associated second construction stability cycles, all of which are set based on human experience.

[0083] Finally, according to the arrangement of the severity of the work fault from large to small, the construction environment is processed with the associated second construction plan stability period and test state configuration. Among them, since the greater the severity of the work fault, the more likely the excavator is to have a fault, the priority is given to the construction of the second test diagnosis scenario associated with the engine oil consumption blowing, so as to better prevent the occurrence of the work.

[0084] In another embodiment, if the first matching rate is greater than the matching rate upper limit, it means that the historical power oscillation log is a power oscillation log of the engine fuel consumption from the generation source interval to this diagnostic scenario, indicating that there is a generation source of engine fuel consumption in the history of this diagnostic scenario.

[0085] Further, by controlling the monitor to start from this diagnostic scene, cruise along the completed progress of the construction process and scan the location information, find out the scene whose location information is inconsistent with the location information of the scene configured as the working diagnosis, and diagnose it as a historical diagnosis blank interval, that is, a scene that is not set as the working diagnosis. Further, based on the location information of the historical diagnosis scene of this diagnostic scene, diagnose the most recent diagnosis scene associated with all historical diagnosis blank intervals, that is, the diagnosis scene with the smallest distance from the associated historical diagnosis blank interval. The most recent diagnosis scene is located at the current of the associated historical diagnosis blank interval. The distance between the historical diagnosis blank interval and the associated most recent diagnosis scene is divided by the construction state configuration, and the engine fuel consumption is output from the historical diagnosis blank interval interval to the second interval stability period of the associated most recent diagnosis scene. If the second interval stability period is greater than the upper limit of the stability period, it means that if the associated historical diagnosis blank interval is the source of engine fuel consumption, after a long time interval to the nearest diagnosis scene, the source of engine fuel consumption can be diagnosed faster through manual inspection than the data diagnosis of the associated most recent diagnosis scene, shortening the time of the diagnosis work location. Then send a blank interval inspection reminder of the associated historical diagnosis blank interval to the terminal of the inspector. Among them, historical diagnosis scenarios are other diagnosis scenarios in the history of this diagnosis scenario;

[0086] The stabilization period is set to 30 minutes.

[0087] The implementation principle of the real-time fault diagnosis and monitoring method for an excavator in the embodiment of the present application is as follows: if the first matching rate is not greater than the upper limit of the matching rate, and the second matching rate is greater than the upper limit of the matching rate, it means that the historical power oscillation log is not the power oscillation log of the engine fuel consumption from the generation source interval to this diagnostic scenario, and further indicates that there is no source of engine fuel consumption in the history of this diagnostic scenario. At the same time, it also means that the current power oscillation log is the power oscillation log of the engine fuel consumption from the generation source interval to the current scenario, and further indicates that there is a source of engine fuel consumption in the history of the current scenario, thereby finally verifying that this diagnostic scenario is the source of engine fuel consumption. In addition, the engine fuel consumption power of the scenario is too high, indicating that there is more fuel in it, and the associated excavator has a major working fault. In this way, a fault reminder of the excavator associated with this diagnostic scenario is sent to the construction party's terminal, thereby improving the accuracy of the excavator work reminder.

[0088] The following is a system embodiment of the present application, which can execute the method embodiment of the present application. For details not disclosed in the system embodiment of the present application, please refer to the method embodiment of the present application.

[0089] See also Figure 2 , which is a structural diagram of the excavator real-time fault diagnosis and monitoring system provided in the embodiment of the present application. The excavator real-time fault diagnosis and monitoring system can be implemented as all or part of the system through software, hardware or a combination of both. The system includes a power collection unit 11, a first diagnosis unit 12, a second diagnosis unit 13, a log matching unit 14 and a work reminder unit 15.

[0090] A power collection unit 11 collects the fuel consumption power of the test engine of the diagnostic scene where the excavator is located in the construction environment;

[0091] The first diagnostic unit 12, if the test engine fuel consumption power is greater than the first power upper limit, takes the diagnostic scenario as a reference, collects at least one historical engine fuel consumption power along the completed progress of the construction process of the construction environment, and diagnoses the historical power oscillation log based on each historical engine fuel consumption power;

[0092] The second diagnosis unit 13 collects at least one current engine fuel consumption power along the progress of the construction process of the construction environment based on the diagnosis scenario, and diagnoses the current power oscillation log based on each current engine fuel consumption power;

[0093] The log matching unit 14 matches the historical power oscillation log with the configured reference power oscillation log, outputs a first matching rate, and matches the current power oscillation log with the reference power oscillation log, outputs a second matching rate, the reference power oscillation log being the power oscillation log of the engine fuel consumption from the generation source with the position interval;

[0094] The work reminder unit 15 sends an excavator fault reminder associated with the diagnosis scenario to the terminal of the construction party if the first matching rate is not greater than the matching rate upper limit and the second matching rate is greater than the matching rate upper limit.

[0095] Optionally, the system further includes a first construction unit, specifically:

[0096] If the current cooling water temperature and the current gas cylinder pressure of the diagnosis scenario both exceed the associated upper limits, the construction state configuration of the construction environment is corrected to the test state configuration;

[0097] Diagnose the first diagnosis scenario in which the cooling water temperature and the gas cylinder pressure in the construction environment do not exceed the associated upper limits, and count the engine fuel consumption power of each first diagnosis scenario;

[0098] Filtering the first test diagnosis scenario from each first diagnosis scenario, and diagnosing the first construction plan stable period of all the first test diagnosis scenarios to the diagnosis scenario, the engine fuel consumption power of the first test diagnosis scenario is greater than the second power upper limit and does not exceed the first power upper limit;

[0099] The construction environment is constructed according to the test status configuration and all first construction plan stabilization cycles.

[0100] Optional, the first construction unit, specifically:

[0101] diagnose the interval distance between all first test diagnosis scenes and the diagnosis scenes;

[0102] Based on the interval distance and the test state configuration, diagnosing the engine fuel consumption from an associated first test diagnostic scenario interval to a first interval stable period of the diagnostic scenario;

[0103] According to the increasing arrangement of the first interval stable period, the construction environment is processed with the associated first construction plan stable period and test state configuration.

[0104] Optional, the first construction unit, specifically:

[0105] Based on the engine fuel consumption power of all the first test diagnosis scenarios, the first construction stability period associated with the diagnosis is diagnosed, and the higher the engine fuel consumption power, the longer the associated first construction stability period;

[0106] According to the increasing arrangement of the first interval stable period, the construction environment is sequentially processed with the associated first construction plan stable period and the test state configuration for the associated first construction stable period.

[0107] Optionally, the system further includes a second construction unit, specifically:

[0108] The distance that the diagnostic construction party has not traveled to reach the diagnostic scene;

[0109] If the untraveled distance does not exceed the upper limit of the distance, diagnose the second diagnosis scenario in which the unevenness of the cooling water temperature and the gas cylinder pressure in the construction environment does not exceed the associated upper limit, and count the engine fuel consumption power of each second diagnosis scenario;

[0110] Filter the second test diagnosis scenario from each second diagnosis scenario, and diagnose the diagnosis scenario to the second construction plan stable period of all second test diagnosis scenarios; the engine fuel consumption power of the second test diagnosis scenario does not exceed the second power upper limit;

[0111] The construction environment is processed according to the test status configuration and all second construction plan stabilization cycles.

[0112] Optional, the second construction unit, specifically:

[0113] Based on the cooling water temperature and the cylinder pressure of all the second test diagnosis scenarios, diagnose the severity of the associated working faults. The higher the severity of the working fault, the more likely the associated second test diagnosis scenario is to have a fault.

[0114] Based on the severity of the working fault, diagnose the associated second construction stability period, the higher the severity of the working fault, the longer the associated second construction stability period;

[0115] According to the arrangement of the severity of the working failures from large to small, the construction environment is processed for the associated second construction stability period according to the associated second construction plan stability period and test state configuration.

[0116] In this embodiment, based on the proximity of the cooling water temperature and the cylinder pressure of all the second test diagnosis scenarios to the associated upper limit, the closer the test result is, the higher the severity of the associated working fault is.

[0117] Optionally, the system further includes a blank interval reminder unit, specifically:

[0118] When the first matching rate is greater than the upper limit of the matching rate, the historical diagnosis blank interval of the diagnosis scene in the diagnosis construction process;

[0119] Based on the current construction state configuration, calculating the engine fuel consumption from all historical diagnosis blank intervals to the second interval stable period of the associated latest diagnosis scene, the latest diagnosis scene being located at the current of the associated historical diagnosis blank interval;

[0120] All second interval stable periods are compared with the upper limit of the stable period. If the second interval stable period is greater than the upper limit of the stable period, a blank interval check reminder of the associated historical diagnosis blank interval is sent to the terminal of the construction party.

[0121] It should be noted that the real-time fault diagnosis and monitoring system for an excavator provided in the above embodiment only uses the division of the above functional units as an example when executing the real-time fault diagnosis and monitoring method for an excavator. In actual applications, the above functions can be assigned to different functional units based on needs, that is, the internal structure of the equipment can be divided into different functional units to complete all or part of the functions described above. In addition, the real-time fault diagnosis and monitoring system for an excavator provided in the above embodiment and the real-time fault diagnosis and monitoring method for an excavator are of the same concept, and the implementation process thereof is detailed in the method embodiment, which will not be repeated here.

[0122] In the several embodiments provided in the present application, it should be understood that the disclosed systems, systems and methods can be implemented in other ways. For example, the system embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of systems or units, which can be electrical, mechanical or other forms.

[0123] In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of software functional units. The above is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of this application, or directly or indirectly used in other related technical fields, is also included in the patent protection scope of the present application.

[0124] The specific implementation methods of the invention are described in detail above, but they are only examples, and the present application is not limited to the specific implementation methods described above. For those skilled in the art, any equivalent modification or substitution of the invention is also within the scope of the present application, and therefore, the equalization, modification, and improvement made without departing from the spirit and principle of the present application should be included in the scope of the present application.

Claims

1. A real-time fault diagnosis and monitoring method for an excavator, characterized in that: The method comprises: Collect the test engine fuel consumption power of the diagnostic scenario where the excavator is located in the construction environment; If the test engine fuel consumption power is greater than the first power upper limit, taking the diagnosis scenario as a reference, collecting at least one historical engine fuel consumption power along the completed progress of the construction process of the construction environment, and diagnosing the historical power oscillation log based on each of the historical engine fuel consumption powers; Taking the diagnosis scenario as a reference, collecting at least one current engine fuel consumption power along the progress of the construction process of the construction environment, and diagnosing a current power oscillation log based on each of the current engine fuel consumption powers; Matching the historical power oscillation log with a configured reference power oscillation log, outputting a first matching rate, and matching the current power oscillation log with the reference power oscillation log, outputting a second matching rate, wherein the reference power oscillation log is a power oscillation log of the engine fuel consumption from a generation source with a position interval; If the first matching rate is not greater than the matching rate upper limit and the second matching rate is greater than the matching rate upper limit, an excavator fault reminder associated with the diagnostic scenario is issued to the terminal of the construction party.

2. The real-time fault diagnosis and monitoring method for an excavator according to claim 1, characterized in that: The method further comprises: If the current cooling water temperature and the current gas cylinder pressure of the diagnosis scenario both exceed the associated upper limits, the construction state configuration of the construction environment is corrected to a test state configuration; Diagnose a first diagnosis scenario in which the cooling water temperature and the gas cylinder pressure in the construction environment do not exceed associated upper limits, and count the engine fuel consumption power in each of the first diagnosis scenarios; Filtering a first test diagnosis scenario from each of the first diagnosis scenarios, and diagnosing a first construction plan stable period from all of the first test diagnosis scenarios to the diagnosis scenario, wherein the engine fuel consumption power of the first test diagnosis scenario is greater than the second power upper limit and does not exceed the first power upper limit; The construction environment is subjected to construction processing according to the test state configuration and all the first construction plan stabilization cycles.

3. The real-time fault diagnosis and monitoring method for an excavator according to claim 2, characterized in that: The performing construction processing on the construction environment according to the test state configuration and all the first construction plan stable cycles specifically includes: diagnosing the interval distance between all the first test diagnosis scenes and the diagnosis scene; Diagnosing engine fuel consumption from an associated first test diagnostic scenario interval to a first interval stable period of the diagnostic scenario according to the interval distance and the test state configuration; According to the increasing arrangement of the first interval stable period, the construction environment is subjected to construction processing with the associated first construction plan stable period and the test state configuration.

4. The real-time fault diagnosis and monitoring method for an excavator according to claim 3, characterized in that: The step of performing construction processing on the construction environment according to the arrangement of the first interval stability cycle in ascending order and the associated first construction plan stability cycle and the test state configuration specifically includes: Based on the engine fuel consumption power of all the first test diagnosis scenarios, diagnose the associated first construction stability period, the higher the engine fuel consumption power, the longer the associated first construction stability period; According to the increasing arrangement of the first interval stable period, the construction environment is subjected to construction processing of the associated first construction stable period in sequence with the associated first construction plan stable period and the test state configuration.

5. The real-time fault diagnosis and monitoring method for an excavator according to claim 2, characterized in that: The method further comprises: diagnosing the distance that the construction party has not traveled to reach the diagnosis scene; If the untraveled distance does not exceed the upper limit of the distance, diagnose a second diagnosis scenario in which the cooling water temperature and the gas cylinder pressure in the construction environment do not exceed the associated upper limits, and count the engine fuel consumption power of each of the second diagnosis scenarios; Filtering the second test diagnosis scenario from each of the second diagnosis scenarios, and diagnosing the diagnosis scenario to the second construction plan stable period of all the second test diagnosis scenarios, wherein the engine fuel consumption power of the second test diagnosis scenario does not exceed the second power upper limit; The construction environment is subjected to construction processing according to the test state configuration and all the second construction plan stabilization cycles.

6. The method for real-time fault diagnosis and monitoring of an excavator according to claim 5, characterized in that: The performing construction processing on the construction environment according to the test state configuration and all the second construction plan stable cycles specifically includes: Based on the cooling water temperature and the cylinder pressure of all the second test diagnosis scenarios, diagnose the severity of the associated working fault, the higher the severity of the working fault, the more likely the associated second test diagnosis scenario is to have a fault; Based on the severity of the working fault, diagnose the associated second construction stability period, the higher the severity of the working fault, the longer the associated second construction stability period; According to the arrangement of the severity of the working faults from large to small, the construction environment is subjected to construction processing of the associated second construction stable period in sequence with the associated second construction plan stable period and the test state configuration.

7. The real-time fault diagnosis and monitoring method for an excavator according to claim 1, characterized in that: The method further comprises: When the first matching rate is greater than the matching rate upper limit, diagnosing a historical diagnosis blank interval of the diagnosis scenario in the construction process; Based on the current construction state configuration, calculating the second interval stable period of the engine fuel consumption from all the historical diagnosis blank intervals to the associated latest diagnosis scene, the latest diagnosis scene being located at the current of the associated historical diagnosis blank interval; All the second interval stability periods are compared with the upper limit of the stability period. If the second interval stability period is greater than the upper limit of the stability period, a blank interval check reminder of the associated historical diagnosis blank interval is sent to the terminal of the construction party.

8. A real-time fault diagnosis and monitoring system for an excavator, used to execute a real-time fault diagnosis and monitoring method for an excavator as claimed in any one of claims 2 to 7, characterized in that: include: The power collection unit collects the fuel consumption power of the test engine in the diagnostic scenario where the excavator is located in the construction environment; a first diagnostic unit, if the test engine fuel consumption power is greater than a first power upper limit, taking the diagnostic scenario as a reference, collecting at least one historical engine fuel consumption power along the completed progress of the construction process of the construction environment, and diagnosing a historical power oscillation log based on each of the historical engine fuel consumption powers; a second diagnosis unit, taking the diagnosis scenario as a reference, collecting at least one current engine fuel consumption power along the progress of the construction process of the construction environment, and diagnosing a current power oscillation log based on each of the current engine fuel consumption powers; a log matching unit, matching the historical power oscillation log with a configured reference power oscillation log, outputting a first matching rate, and matching the current power oscillation log with the reference power oscillation log, outputting a second matching rate, wherein the reference power oscillation log is a power oscillation log of the engine fuel consumption from a generation source with a position interval; The work reminder unit sends an excavator fault reminder associated with the diagnosis scenario to the terminal of the construction party if the first matching rate is not greater than the matching rate upper limit and the second matching rate is greater than the matching rate upper limit.

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