Carbon brush ignition monitoring method, device and system and storage medium

Abstract

The invention discloses a carbon brush ignition monitoring method, device and system and a storage medium. According to the invention, the basic light intensity of the background light in the carbon brush ignition monitoring system is introduced, and the ambient light is considered into the carbon brush ignition monitoring method. Firstly, the basic light intensity is compared with a set intensity value, and then the ignition state of the carbon brush at the current moment is determined based on a comparison result of a pulse parameter value and a set parameter value. In this way, the illumination intensity is used as one of the parameters for carbon brush ignition monitoring, and the accuracy of carbon brush ignition monitoring is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment monitoring, and in particular to a carbon brush ignition monitoring method, device, system and storage medium. Background Art

[0002] Carbon brush ignition refers to the spark phenomenon generated by the contact between the carbon brush and the rotating part in the motor or generator, wherein the carbon brush is a sliding contact element used to transfer current to the rotating part, and the rotating part may include but is not limited to a commutator or a slip ring. When the motor or generator is running, the contact between the carbon brush and the rotating part will generate friction. Under normal working conditions, the contact between the carbon brush and the rotating part will generate tiny sparks. However, when the contact is poor or other abnormal conditions occur, the spark may become too large, causing the carbon brush to ignite, thereby causing arc discharge between the brush and the rotor. The sparks generated by the arc discharge may cause wear of the carbon brush and the rotating part, may cause electrical failure, and may even cause a fire. Therefore, it is necessary to monitor the carbon brush ignition to enhance the safety of the motor. However, in the related art, an ambient light detector is usually used to monitor the carbon brush ignition, which not only receives the light signal when the carbon brush ignites, but also receives the ambient light signal, making it difficult to accurately monitor and evaluate the carbon brush ignition. Summary of the invention

[0003] The purpose of the present application is to provide a carbon brush ignition monitoring method, device, system and storage medium to solve the problem of low accuracy in monitoring carbon brush ignition in related technologies.

[0004] In order to achieve the above-mentioned object, the first aspect of the present application provides a carbon brush ignition monitoring method, which is applied to a carbon brush ignition monitoring system. The method comprises:

[0005] Through continuous sampling, the basic light intensity and pulse parameter value of the background light in the carbon brush ignition monitoring system at the current moment are determined;

[0006] If the basic light intensity is less than the set intensity value, the pulse parameter value is compared with the set parameter value;

[0007] Based on the comparison result between the pulse parameter value and the set parameter value, the carbon brush ignition state at the current moment is determined.

[0008] In the embodiment of the present application, the pulse parameter value includes a target width value, a target amplitude value and a target repetition rate, the set parameter value includes a set width value, a set amplitude value and a set repetition rate, and the set width value includes a first set value, a second set value and a third set value;

[0009] Based on the comparison result between the pulse parameter value and the set parameter value, the current carbon brush ignition state is determined, including:

[0010] Compare the target width value with the set width value;

[0011] If the target width value is not the first set value and the second set value, determining whether the target width value is less than the third set value;

[0012] If the target width value is less than the third set value, the target repetition rate is compared with the set repetition rate to obtain the carbon brush ignition state;

[0013] If the target width value is greater than or equal to the third set value, the target amplitude is compared with the set amplitude to obtain the carbon brush ignition state;

[0014] The third setting value is between the first setting value and the second setting value.

[0015] In the embodiment of the present application, the setting repetition rate includes a fourth setting value, and the comparison of the target repetition rate with the setting repetition rate to obtain the carbon brush ignition state includes:

[0016] Determining whether the target repetition rate is less than the fourth set value;

[0017] If the target repetition rate is less than the fourth set value, the carbon brush ignition state is determined as a first state for characterizing that intermittent point sparks occur during the carbon brush ignition;

[0018] If the target repetition rate is greater than or equal to the fourth set value, the carbon brush ignition state is determined as a second state for characterizing that continuous granular sparks occur during the carbon brush ignition.

[0019] In the embodiment of the present application, the target amplitude includes a fifth set value, and the target amplitude is compared with the set amplitude to obtain the carbon brush ignition state, including:

[0020] Determining whether the target amplitude is less than a fifth set value;

[0021] If the target amplitude is less than the fifth set value, the carbon brush ignition state is determined as the third state for characterizing the occurrence of intermittent tongue-shaped sparks in the carbon brush ignition;

[0022] If the target amplitude is greater than or equal to the fifth set value, the carbon brush ignition state is determined as the fourth state for characterizing the occurrence of intermittent tongue-shaped sparks in the carbon brush ignition.

[0023] In the embodiment of the present application, the second set value is greater than the first set value, and the carbon brush ignition state at the current moment is determined based on the comparison result between the pulse parameter value and the set parameter value, and further includes:

[0024] If the target width value is the first set value, the carbon brush ignition state is determined as the fifth state indicating that there is no carbon brush ignition at present;

[0025] If the target width value is the second set value, the carbon brush ignition state is determined as a sixth state representing that the carbon brush ignition monitoring system outputs prompt information.

[0026] In the embodiment of the present application, the basic light intensity and pulse parameter value of the background light in the carbon brush ignition monitoring system at the current moment are determined by continuous sampling, including:

[0027] Dividing a counting time window within a preset sliding time window into a first counting time window and a second counting time window, wherein a first timestamp corresponding to the first counting time window is before a second timestamp corresponding to the second counting time window;

[0028] Determining a base light intensity through a first counting time window;

[0029] The target width value, target amplitude value and target repetition rate are determined through the second counting time window.

[0030] In the embodiment of the present application, determining the target width value, the target amplitude value and the target repetition rate through the second counting time window includes:

[0031] Determine the pulse threshold according to the basic light intensity;

[0032] Acquire the initial width value and initial amplitude value of the pulse collected in the second counting time window;

[0033] The difference between the initial width value and the pulse threshold is taken as the target width value;

[0034] The difference between the initial amplitude and the pulse threshold is taken as the target amplitude;

[0035] The number of times the initial amplitude exceeds the pulse threshold is taken as the target repetition rate.

[0036] A second aspect of the present application provides a carbon brush ignition monitoring device, which is applied to a carbon brush ignition monitoring system, and the device comprises:

[0037] The sampling module is used to determine the basic light intensity and pulse parameter value of the background light in the carbon brush ignition monitoring system at the current moment through continuous sampling;

[0038] A comparison module, used for comparing the pulse parameter value with the set parameter value if the basic light intensity is less than the set intensity value;

[0039] The determination module is used to determine the carbon brush ignition state at the current moment based on the comparison result between the pulse parameter value and the set parameter value.

[0040] A third aspect of the present application provides a carbon brush ignition monitoring system, comprising:

[0041] a memory configured to store instructions; and

[0042] The processor is configured to call instructions from the memory and implement the above-mentioned carbon brush ignition monitoring method when executing the instructions.

[0043] A fourth aspect of the present application provides a machine-readable storage medium having instructions stored thereon, which, when executed by a processor, configures the processor to execute the above-mentioned carbon brush ignition monitoring method.

[0044] This application takes ambient light into account in the carbon brush ignition monitoring method by introducing the basic light intensity of the background light in the carbon brush ignition monitoring system. First, the basic light intensity is compared with the set intensity value, and then the carbon brush ignition state at the current moment is determined based on the comparison result between the pulse parameter value and the set parameter value. In this way, the light intensity is used as one of the parameters for carbon brush ignition monitoring, which improves the accuracy of carbon brush ignition monitoring.

[0045] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0047] Figure 1 A schematic flow chart of a carbon brush ignition monitoring method provided in an embodiment of the present application;

[0048] Figure 2 A schematic diagram of a basic light intensity and pulse parameter value provided in an embodiment of the present application;

[0049] Figure 3 A schematic diagram of a continuous sampling principle provided in an embodiment of the present application;

[0050] Figure 4 A schematic flow chart of a carbon brush ignition monitoring method provided in a specific embodiment of the present application;

[0051] Figure 5 A structural schematic diagram of a carbon brush ignition monitoring device provided in an embodiment of the present application;

[0052] Figure 6 This is a structural block diagram of a carbon brush ignition monitoring system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0053] 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 those skilled in the art without creative work are within the scope of protection of this application.

[0054] In the description of the present application, it should be understood that the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In the present application, the word "exemplary" is used to mean "used as an example, illustration or description". Any embodiment described as "exemplary" in the present application is not necessarily interpreted as being more preferred or more advantageous than other embodiments. In order to enable any technician in the field to implement and use the present application, the following description is given. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can also be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid unnecessary details that make the description of the present application obscure. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest range of principles and features disclosed in the present application.

[0055] Figure 1 Schematic diagram of a carbon brush ignition monitoring method provided in an embodiment of the present application. Figure 1 As shown, the carbon brush ignition monitoring method may include steps 101-103, which are described in detail below.

[0056] Step 101: Determine the basic light intensity and pulse parameter value of the background light in the carbon brush ignition monitoring system at the current moment through continuous sampling.

[0057] In the embodiment of the present application, continuous sampling refers to the process of collecting the parameters required to monitor the carbon brush fire based on the set interval time. Compared with the related art that only monitors the output of the carbon brush ignition, the embodiment of the present application introduces the basic light intensity of the background light as the basic light intensity to characterize the ambient light intensity of the current monitoring system. Among them, the basic light intensity can be collected based on the light intensity value of the background light for a period of time before the current moment. For example, the average value of the light intensity value 10 seconds before the current moment can be taken as the basic light intensity. In this way, the problem of interference with the monitoring of the carbon brush ignition status due to the current light intensity value suddenly turning on at the current moment can be reduced.

[0058] The embodiment of the present application can first make a judgment based on the basic light intensity. If the basic light intensity is too high, it means that there may be situations such as turning on the lights for inspection at the current moment, and the basic light intensity of the background light interferes with the carbon brush ignition monitoring. At this time, there is no need to further monitor the carbon brush ignition. If the basic light intensity is within a reasonable range, the specific state of the carbon brush ignition can continue to be monitored based on the pulse parameter value. The embodiment of the present application can set a set intensity value in advance as a judgment on the size of the basic light intensity. The pulse parameter value refers to the output value of the carbon brush ignition at the current moment collected in real time. In one example, the pulse parameter value may include a target width value, a target amplitude, and a target repetition rate. The target width value, the target amplitude, and the target repetition rate represent the pulse width, pulse amplitude, and pulse repetition rate of the carbon brush ignition collected at the current moment. The pulse parameter value is illustrated below.

[0059] Figure 2 Schematic diagram of a basic light intensity and pulse parameter value provided in the embodiment of the present application. Figure 2 As shown, it is assumed that the horizontal axis is time t, and the vertical axis is the collected parameter value and the value of the basic light intensity, in mV. Specifically, after determining the basic light intensity B, a pulse threshold PT can be determined according to the basic light intensity B. The pulse threshold PT refers to the basic light intensity plus a fixed value, which can be determined and adjusted based on actual needs. Then, the initial width value and initial amplitude of the pulse at the current moment are collected. The difference between the initial width value and the pulse threshold PT is used as the target width value PW, the difference between the initial amplitude and the pulse threshold is used as the target amplitude PA, and the number of times the initial amplitude exceeds the pulse threshold is used as the target repetition rate PR.

[0060] Step 102: If the basic light intensity is less than the set intensity value, the pulse parameter value is compared with the set parameter value.

[0061] In the embodiment of the present application, the set intensity value is a threshold value for judging the intensity of the ambient light. If the basic light intensity is less than the set intensity value, it means that the influence of the basic light intensity of the current background light on the carbon brush ignition monitoring is within a reasonable range. Therefore, the pulse parameter can be compared with the set parameter value. Among them, the set parameter value refers to the threshold value for distinguishing the carbon brush ignition state, and can also be set according to the actual requirements of the carbon brush ignition monitoring state.

[0062] Step 103: Determine the current carbon brush ignition state based on the comparison result between the pulse parameter value and the set parameter value.

[0063] In the embodiment of the present application, the setting parameters can be set based on demand, which is highly flexible. At the same time, the carbon brush ignition state can be more accurately divided based on actual conditions. Compared with the related art that only gives the judgment result of ignition or non-ignition, the embodiment of the present application obtains a more accurate carbon brush ignition state based on the comparison result of the pulse parameter and the setting parameter, thereby improving the accuracy of carbon brush ignition monitoring.

[0064] The embodiment of the present application takes ambient light into account in the carbon brush ignition monitoring method by introducing the basic light intensity of the background light in the carbon brush ignition monitoring system. First, the basic light intensity is compared with the set intensity value, and then the carbon brush ignition state at the current moment is determined based on the comparison result between the pulse parameter value and the set parameter value. In this way, the light intensity is used as one of the parameters for carbon brush ignition monitoring, which improves the accuracy of carbon brush ignition monitoring.

[0065] In step 101 of the embodiment of the present application, the basic light intensity and pulse parameter values ​​can be continuously sampled through a preset sliding time window. The sliding time window is used to process time series data and can be regarded as a time period of fixed length, during which the collected basic light intensity and pulse parameter values ​​are analyzed and calculated. As time goes by, the sliding time window will slide to the next time period to process new sampled data. The sliding time window can collect data within a preset window size according to the set sliding step size.

[0066] The sliding time window of the embodiment of the present application can be used in conjunction with the counting time window, and the data collected at each moment can be recorded by the counting time window. By performing statistics on the counting time window in the sliding time window, the required sampling data can be obtained.

[0067] Figure 3 Schematic diagram of a continuous sampling principle provided in an embodiment of the present application. Figure 3 As shown, the embodiment of the present application can divide the counting time window in the preset sliding time window into a first counting time window and a second counting time window, wherein the first timestamp corresponding to the first counting time window is before the second timestamp corresponding to the second counting time window.

[0068] In an embodiment of the present application, in order to reduce the influence of the illumination intensity value of the background light at the current moment on the carbon brush ignition monitoring, the counting window can be divided into two parts, one part is used to collect the illumination intensity value of a period of time before the current moment, and this part of the counting time window is the first counting time window. The other part is used to collect the pulse parameter value at the current moment, and this part of the counting time window is the second counting time window. Take the sliding time window with a step size of 1 second and a size of 11 seconds as an example. The data from the xth second to the x+9th second can be used as the data in the first counting time window, and the data from the x+10th second can be used as the data in the second counting time window. Then slide forward in steps of 1 second, and record the basic light intensity and pulse parameter values ​​that need to be collected at each moment in real time.

[0069] Based on the sliding time window and the first counting time window, the basic light intensity can be first determined through the first counting time window. For example, the light intensity values ​​in a period of time before the current moment can be averaged to obtain the average light intensity value. Then, the average light intensity value is used as the basic light intensity. Taking the 10 seconds before the current moment as the first counting time window, the average light intensity value of the previous 10 seconds can be used as the basic light intensity. Based on the sliding time window and the second counting time window, the pulse parameter value at the current moment can be sampled. For example, the target width value, target amplitude and target repetition rate at the current moment can be determined through the second counting time window. In this way, the data required for carbon brush ignition monitoring can be collected in real time more accurately and efficiently.

[0070] In the embodiment of the present application, as an example, the carbon brush ignition state includes six states, wherein the first state characterizes that the carbon brush ignites intermittent point sparks, at which time the target amplitude PA is zero, the target width value PW is small, and the target repetition rate PR is low. The second state characterizes that the carbon brush ignites continuous granular sparks, at which time the target amplitude PA is low, the target width value PW is small, and the target repetition rate PR is high. The third state characterizes that the carbon brush ignites intermittent tongue-shaped sparks, at which time the target amplitude PA is high, the target width value PW is high, and the target repetition rate PR is also high. The fourth state characterizes that the carbon brush ignites intermittent tongue-shaped sparks, at which time the target amplitude PA is very high, the target width value PW is high, and the target repetition rate PR is high. The fifth state characterizes that there is no carbon brush ignition at present, at which time the excitation system and the collector ring where the carbon brush is located do not produce carbon brush ignition, and the target amplitude PA is zero. The sixth state indicates that the carbon brush ignition monitoring system outputs a prompt message Error. At this time, the background light of the carbon brush ignition monitoring system is too strong, so it is necessary to output a prompt to turn on the light for inspection.

[0071] Based on the division of the above six states, the set parameter values ​​may include a set width value, a set amplitude value and a set repetition rate, which are used to distinguish the six states. Among them, the set width value may include a first set value, a second set value and a third set value. The second set value is greater than the first set value. The third set value is between the first set value and the second set value. In this way, the first set value is a value that characterizes the carbon brush ignition as the first state, that is, there is no carbon brush ignition at present. The second set value is a sixth state that characterizes the output prompt information of the carbon brush ignition monitoring system, indicating that the background light of the current carbon brush ignition monitoring system is too strong.

[0072] If the target width value is small, it may belong to the first state or the second state, and if the target width value is large, it may belong to the third state or the fourth state. Therefore, the third set value between the first set value and the second set value is a threshold for distinguishing whether the carbon brush ignition state belongs to the first state or the second state, or the third state or the fourth state. In this way, the rough classification of the carbon brush ignition state can be found based on the set width.

[0073] In the embodiment of the present application, for the first state and the second state, the target width value PW is small, and the target amplitude value PA is low, so the size of the target repetition rate of the first state and the second state can be distinguished. Therefore, setting the repetition rate may include a fourth setting value. The fourth setting value is used to distinguish the first state and the second state.

[0074] In the embodiment of the present application, for the third state and the fourth state, the target width value PW is relatively high, and the target repetition rate PR is also relatively high. Therefore, the size of the target amplitude can distinguish the third state from the fourth state. Therefore, the set amplitude may include a fifth set value. The fifth set value is used to distinguish the third state from the fourth state.

[0075] Figure 4 FIG. 1 is a flow chart of a carbon brush ignition monitoring method provided in a specific embodiment of the present application. Figure 4 As shown, in a specific embodiment, the carbon brush ignition monitoring method may include steps 401-407, which are described in detail below.

[0076] Step 401, determine whether the basic light intensity is less than the set intensity value. If it is, proceed to step 402 to determine the carbon brush ignition state; otherwise, the carbon brush ignition state is determined as the sixth state representing the output prompt information of the carbon brush ignition monitoring system, indicating that the current basic light intensity is too high, and a light inspection is reminded.

[0077] Step 402: Compare the target width value with the set width value. Specifically, there are three cases, see step 403, step 404 and step 405 respectively.

[0078] Step 403: If the target width value is the first set value, the carbon brush ignition state is determined as the fifth state indicating that there is no carbon brush ignition at present.

[0079] Step 404: If the target width value is the second set value, the carbon brush ignition state is determined as a sixth state representing that the carbon brush ignition monitoring system outputs prompt information.

[0080] Step 405: If the target width value is not the first set value and the second set value, determine whether the target width value is less than the third set value, and determine the first state to the fourth state. If the target width value is less than the third set value, proceed to step 406: compare the target repetition rate with the set repetition rate to determine whether the carbon brush ignition state is the first state or the second state. Otherwise, proceed to step 409.

[0081] Step 406, determine whether the target repetition rate is less than the fourth set value. If the target repetition rate is less than the fourth set value, the carbon brush ignition state is determined as the first state used to characterize the carbon brush ignition with intermittent point sparks. If the target repetition rate is greater than or equal to the fourth set value, the carbon brush ignition state is determined as the second state used to characterize the carbon brush ignition with continuous granular sparks.

[0082] Step 407, determine whether the target amplitude is less than the fifth set value. Compare the target amplitude with the set amplitude to determine whether the carbon brush ignition state is the third state or the fourth state. If the target amplitude is less than the fifth set value, the carbon brush ignition state is determined as the third state for characterizing the occurrence of intermittent tongue-shaped sparks when the carbon brush ignites. If the target amplitude is greater than or equal to the fifth set value, the carbon brush ignition state is determined as the fourth state for characterizing the occurrence of intermittent tongue-shaped sparks when the carbon brush ignites.

[0083] The embodiment of the present application takes ambient light into consideration in the carbon brush ignition monitoring method by introducing parameters such as basic light intensity, target amplitude, target width and target repetition rate. First, the basic light intensity is compared with the set intensity value, and then the carbon brush ignition status at the current moment is determined based on the comparison result between the pulse parameter value and the set parameter value. The determination process is simple and can accurately monitor the current carbon brush ignition status. In this way, the light intensity is used as one of the parameters for carbon brush ignition monitoring, and the specific status of the carbon brush ignition can be accurately determined, thereby improving the accuracy of carbon brush ignition monitoring.

[0084] Figure 5 Schematic diagram of the structure of a carbon brush ignition monitoring device provided in an embodiment of the present application. The carbon brush ignition monitoring device 500 is applied to a carbon brush ignition monitoring system. Figure 5As shown, the carbon brush ignition monitoring device 500 includes a sampling module 501, a comparison module 502 and a determination module 503. Among them, the sampling module 501 is used to determine the basic light intensity and pulse parameter value of the background light in the carbon brush ignition monitoring system at the current moment through continuous sampling. The comparison module 502 is used to compare the pulse parameter value with the set parameter value if the basic light intensity is less than the set intensity value. The determination module 503 is used to determine the carbon brush ignition state at the current moment based on the comparison result of the pulse parameter value and the set parameter value.

[0085] Among them, the sampling module 501, the comparison module 502 and the determination module 503 can be used to respectively execute steps 101-103 in the embodiment corresponding to the above-mentioned carbon brush ignition monitoring method. For the specific implementation methods of these modules and more details, please refer to the corresponding method part, which will not be repeated here.

[0086] Figure 6 1 is a structural block diagram of a carbon brush ignition monitoring system provided in an embodiment of the present application. Figure 6 As shown, the embodiment of the present application provides a carbon brush ignition monitoring system 600, which includes a memory 610 and a processor 620. The memory 610 is configured to store instructions. The processor 620 is configured to call instructions from the memory and implement the above-mentioned carbon brush ignition monitoring method when executing the instructions.

[0087] An embodiment of the present application further provides a machine-readable storage medium, on which instructions are stored. When the instructions are executed by a processor, the processor is configured to execute the above-mentioned carbon brush ignition monitoring method.

[0088] Since the instructions stored in the carbon brush ignition monitoring system and the machine-readable storage medium can execute the steps in any one of the carbon brush ignition monitoring methods provided in the embodiments of the present application, the beneficial effects that can be achieved by any one of the carbon brush ignition monitoring methods provided in the embodiments of the present application can be achieved. Please refer to the previous embodiments for details and will not be repeated here.

[0089] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0090] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0091] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0092] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0093] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0094] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0095] Computer readable media include permanent and non-permanent, removable and non-removable media, and can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated communication signals and carrier waves.

[0096] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0097] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A carbon brush ignition monitoring method, characterized in that: Applied to a carbon brush ignition monitoring system, the method comprises: Determine the basic light intensity and pulse parameter value of the background light in the carbon brush ignition monitoring system at the current moment through continuous sampling; If the basic light intensity is less than the set intensity value, the pulse parameter value is compared with the set parameter value; Based on the comparison result between the pulse parameter value and the set parameter value, the ignition state of the carbon brush at the current moment is determined.

2. The method according to claim 1, wherein the pulse parameter value comprises a target width value, a target amplitude value and a target repetition rate, the set parameter value comprises a set width value, a set amplitude value and a set repetition rate, and the set width value comprises a first set value, a second set value and a third set value; The determining the carbon brush ignition state at the current moment based on the comparison result between the pulse parameter value and the set parameter value includes: Comparing the target width value with the set width value; If the target width value is not the first setting value and the second setting value, determining whether the target width value is less than a third setting value; If the target width value is less than the third set value, the target repetition rate is compared with the set repetition rate to obtain the ignition state of the carbon brush; If the target width value is greater than or equal to the third set value, the target amplitude is compared with the set amplitude to obtain the ignition state of the carbon brush; The third setting value is between the first setting value and the second setting value.

3. The method according to claim 2, characterized in that The set repetition rate includes a fourth set value, and the comparison of the target repetition rate with the set repetition rate to obtain the carbon brush ignition state includes: Determining whether the target repetition rate is less than the fourth set value; If the target repetition rate is less than the fourth set value, the carbon brush ignition state is determined as a first state for characterizing that intermittent point sparks occur during the carbon brush ignition; If the target repetition rate is greater than or equal to the fourth set value, the carbon brush ignition state is determined as a second state for characterizing that continuous granular sparks occur during the carbon brush ignition.

4. The method according to claim 2, characterized in that: The target amplitude includes a fifth set value, and the target amplitude is compared with the set amplitude to obtain the ignition state of the carbon brush, including: Determining whether the target amplitude is less than the fifth set value; If the target amplitude is less than the fifth set value, the carbon brush ignition state is determined as a third state for characterizing that intermittent tongue-shaped sparks appear in the carbon brush ignition; If the target amplitude is greater than or equal to the fifth set value, the carbon brush ignition state is determined as a fourth state for characterizing that intermittent tongue-shaped sparks occur during the carbon brush ignition.

5. The monitoring method according to claim 2, characterized in that: The second set value is greater than the first set value, and the determining the carbon brush ignition state at the current moment based on the comparison result between the pulse parameter value and the set parameter value also includes: If the target width value is the first set value, the carbon brush ignition state is determined as a fifth state indicating that there is no carbon brush ignition at present; If the target width value is the second set value, the carbon brush ignition state is determined as a sixth state representing that the carbon brush ignition monitoring system outputs prompt information.

6. The method according to claim 2, characterized in that The method of determining the basic light intensity and pulse parameter value of the background light in the carbon brush ignition monitoring system at the current moment by continuous sampling includes: Divide the counting time window in the preset sliding time window into a first counting time window and a second counting time window, wherein the first timestamp corresponding to the first counting time window is before the second timestamp corresponding to the second counting time window; Determining the basic light intensity through the first counting time window; The target width value, the target amplitude value and the target repetition rate are determined through the second counting time window.

7. The method according to claim 6, characterized in that The determining the target width value, the target amplitude value, and the target repetition rate through the second counting time window includes: Determining a pulse threshold according to the basic light intensity; Acquire an initial width value and an initial amplitude value of the pulse collected within the second counting time window; Taking the difference between the initial width value and the pulse threshold as the target width value; Taking the difference between the initial amplitude and the pulse threshold as the target amplitude; The number by which the initial amplitude exceeds the pulse threshold is taken as the target repetition rate.

8. A carbon brush ignition monitoring device, characterized in that: Applied to a carbon brush ignition monitoring system, the device comprises: A sampling module, used to determine the basic light intensity and pulse parameter value of the background light in the carbon brush ignition monitoring system at the current moment through continuous sampling; A comparison module, configured to compare the pulse parameter value with a set parameter value if the basic light intensity is less than a set intensity value; The determination module is used to determine the ignition state of the carbon brush at the current moment based on the comparison result of the pulse parameter value and the set parameter value.

9. A carbon brush ignition monitoring system, characterized in that: include: a memory configured to store instructions; as well as A processor is configured to call the instruction from the memory and implement the carbon brush ignition monitoring method according to any one of claims 1 to 7 when executing the instruction.

10. A machine-readable storage medium, characterized in that: The machine-readable storage medium stores instructions, which, when executed by a processor, enable the processor to be configured to execute the carbon brush ignition monitoring method according to any one of claims 1 to 7.

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