A sintering equipment data acquisition system and method

Abstract

The invention relates to the technical field of data acquisition, and specifically discloses a sintering equipment data acquisition system and method, wherein the system comprises: a first harmonic detection module detects a first interference harmonic component in a running data analog quantity of the sintering equipment in real time; a second harmonic detection module detects a second interference harmonic component in a power supply current of a power supply cabinet in real time based on a harmonic detection model in current; a network cable line loss analysis module is used for performing line loss analysis on all transmission network cables connected to a measuring module; a filtering parameter setting module is used for determining an optimal filtering parameter of a filter connected before an input port of the measuring module; an equipment data acquisition module is used for setting filtering parameters of a filter connected before an input port of the measuring module based on the optimal filtering parameter, and controlling the measuring module to measure the running data of the sintering equipment in real time to obtain a data acquisition result of the sintering equipment; and the system is used for improving the anti-interference and stability of the sintering equipment data acquisition system.

Description

Technical Field

[0001] The present invention relates to the technical field of data acquisition, and in particular to a sintering equipment data acquisition system and method. Background Art

[0002] At present, the sintering equipment data acquisition system refers to a system that can collect and process various data during the operation of the sintering equipment in real time. This system can provide users with timely and accurate information, helping them to better understand the operating status of the sintering equipment, so as to take appropriate measures to ensure the safe and stable operation of the sintering equipment. The working principle of the sintering equipment data acquisition system is: through hardware devices such as sensors and actuators, various data during the operation of the sintering equipment are collected. Then, these data are transmitted to the software module of the data acquisition system, and the software analyzes and processes these data and returns the results to the user. The sintering equipment data acquisition system has many advantages. First, it can monitor the operating status of the sintering equipment in real time, detect abnormal conditions in time, and issue alarms to the user. Secondly, it can automatically collect and store a large amount of data, which is convenient for users to conduct statistical analysis and long-term observation. Finally, it can be combined with the user's control system to provide users with a more intelligent operation interface to help users better control the sintering equipment.

[0003] However, the existing sintering equipment acquisition system will generate large interference harmonics due to the large main line current in the electric cabinet, especially for medium-frequency sintering furnaces. The interference harmonics transmitted by the current Beichen data acquisition module analog quantity will have a greater impact and can be easily broken down by the instantaneous pulse current, causing damage to its internal components. At the same time, the instantaneous impact will damage other communication modules. For example, the Beichen data acquisition module used often burns out, causing damage to the PLC communication port and abnormal communication of the touch screen, which eventually causes the equipment to go offline, and the start-up report cannot be selected, which also causes an increase in the cost of purchasing accessories. The damage of the controller will directly affect production.

[0004] Therefore, the present invention proposes a sintering equipment data acquisition system and method. Summary of the invention

[0005] The present invention provides a sintering equipment data acquisition system and method, which are used to reasonably determine the optimal filtering parameters of the filter connected before the input port of the measuring module based on the first interference harmonic component in the operating data analog quantity of the sintering equipment and the second interference harmonic component in the power supply current of the power supply cabinet detected in the current operating cycle and the measurement transmission line loss analysis result, so as to achieve accurate filtering of the interference harmonics in the operating data analog quantity of the sintering equipment obtained by the measuring module in the sintering equipment data acquisition system, thereby improving the anti-interference and stability of the sintering equipment data acquisition system.

[0006] The present invention provides a sintering equipment data acquisition system, comprising:

[0007] The first harmonic detection module is used to detect the first interference harmonic component in the operation data analog quantity of the sintering equipment in real time;

[0008] The second harmonic detection module is used to detect the second interfering harmonic component in the power supply current of the power supply cabinet in real time based on the harmonic detection model in the current;

[0009] The network cable loss analysis module is used to perform line loss analysis on all transmission network cables connected to the measurement module to obtain the measured transmission line loss analysis results;

[0010] A filter parameter setting module, used to determine the optimal filter parameters of the filter connected before the input port of the measurement module based on all the first interference harmonic components and all the second interference harmonic components detected in the current operation cycle and the measurement transmission line loss analysis result;

[0011] The equipment data acquisition module is used to set the filtering parameters of the filter connected before the input port of the measurement module based on the optimal filtering parameters, and control the measurement module to measure the operating data of the sintering equipment in real time to obtain the sintering equipment data acquisition results.

[0012] Preferably, the first harmonic detection module includes:

[0013] The measurement submodule is used to obtain the operating data simulation of the sintering equipment in real time;

[0014] The frequency domain analysis submodule is used to fit a spectrum diagram based on the operation data simulation quantity of the sintering equipment obtained in the current operation cycle, and perform frequency domain analysis on the spectrum diagram to obtain all first suspected harmonic components;

[0015] The phase analysis submodule is used to fit a phase-frequency diagram based on the operation data simulation quantity of the sintering equipment obtained in the current operation cycle, and perform phase analysis on the phase-frequency diagram to obtain all second suspected harmonic components;

[0016] The harmonic detection submodule is used to detect the first interfering harmonic component in the operation data analog quantity of the sintering equipment based on all the first suspected harmonic components and all the second suspected harmonic components.

[0017] Preferably, the harmonic detection submodule includes:

[0018] A frequency interval determination unit, used to determine the frequency interval to which all first suspected harmonic components belong in the corresponding frequency spectrum diagram, and to determine the frequency interval to which all second suspected harmonic components belong in the corresponding phase-frequency diagram;

[0019] A difference interval determination unit, used to determine a difference frequency interval between a frequency interval to which all first suspected harmonic components belong in a corresponding frequency spectrum diagram and a frequency interval to which all second suspected harmonic components belong in a corresponding phase-frequency diagram;

[0020] The harmonic component determination unit is used to analyze the energy characteristics of the operation data simulation quantity of the sintering equipment obtained in the current operation cycle based on the difference frequency interval, and obtain the first interference harmonic component in the operation data simulation quantity of the sintering equipment.

[0021] Preferably, the difference interval determining unit includes:

[0022] A first difference comparison subunit is used to regard the independent continuous frequency intervals contained in the frequency intervals to which all first suspected harmonic components belong in the corresponding frequency spectrum diagram and not contained in the frequency intervals to which all second suspected harmonic components belong in the corresponding phase-frequency diagram as the first difference frequency intervals;

[0023] The second difference comparison subunit is used to regard the independent continuous frequency interval that is not included in the frequency interval to which all the first suspected harmonic components belong in the corresponding frequency spectrum diagram and is included in the frequency interval to which all the second suspected harmonic components belong in the corresponding phase-frequency diagram as the second difference frequency interval;

[0024] The difference frequency interval includes a first difference frequency interval and a second difference frequency interval.

[0025] Preferably, the harmonic component determination unit comprises:

[0026] A first reference interval determination subunit is used to perform interval expansion on each first difference frequency interval to obtain a first reference frequency interval of each first difference frequency interval, and at the same time, perform interval expansion on each second difference frequency interval to obtain a first reference frequency interval of each second difference frequency interval;

[0027] A second reference interval determination subunit is used to regard all independent continuous frequency intervals in the frequency interval to which all second suspected harmonic components belong in the corresponding phase-frequency diagram and located within the first reference frequency interval of each first difference frequency interval as all second reference frequency intervals corresponding to the first difference frequency interval, and at the same time, regard all independent continuous frequency intervals in the frequency interval to which all first suspected harmonic components belong in the corresponding phase-frequency diagram and located within the first reference frequency interval of each second difference frequency interval as all second reference frequency intervals corresponding to the second difference frequency interval;

[0028] The harmonic component determination subunit is used to obtain the first interference harmonic component in the operation data simulation quantity of the sintering equipment based on the energy characteristics of the operation data simulation quantity of the sintering equipment obtained in the current operation cycle in all second reference frequency intervals in each difference frequency interval.

[0029] Preferably, the harmonic component determination subunit comprises:

[0030] The power spectrum fitting terminal is used to generate a power spectrum density function based on the simulated operation data of the sintering equipment acquired in the current operation cycle;

[0031] An integral value calculation terminal is used to calculate the integral value of the power spectrum density function in each difference frequency interval, and calculate the integral value of the power spectrum density function in each reference frequency interval of each difference frequency interval;

[0032] The energy comparison end is used to determine the deviation between the integral value of the power spectrum density function in each difference frequency interval and the average of the integral values ​​of the power spectrum density function in all reference frequency intervals corresponding to the difference frequency interval;

[0033] The harmonic component determination end is used to obtain the first interfering harmonic component in the operating data simulation of the sintering equipment based on the deviation of all difference frequency intervals and all the first suspected harmonic components and second suspected harmonic components in the operating data simulation of the sintering equipment obtained in the current operating cycle.

[0034] Preferably, the harmonic component determination terminal includes:

[0035] The non-harmonic component screening sub-terminal is used to screen out all the first suspected harmonic components or second suspected harmonic components corresponding to all the difference frequency intervals, and to treat all the first suspected harmonic components and second suspected harmonic components whose deviation exceeds the deviation threshold as all the non-harmonic components;

[0036] The harmonic component determination sub-terminal is used to treat all the first suspected harmonic components and the second suspected harmonic components in the operation data simulation of the sintering equipment obtained in the current operation cycle except all the non-harmonic components as the first interfering harmonic components in the operation data simulation of the sintering equipment.

[0037] Preferably, the network cable loss analysis module includes:

[0038] A line loss rate calculation submodule, used to calculate the line loss rate of each transmission network line connected to the measurement module based on the original parameters of each transmission network line connected to the measurement module;

[0039] The sequence generation submodule is used to sort the line loss rates of all transmission network cables connected to the measurement module based on a preset sorting method, and generate a line loss rate sequence as a measured transmission line loss analysis result.

[0040] Preferably, the filtering parameter setting module includes:

[0041] The analysis model building submodule is used to build a filter parameter analysis model;

[0042] The parameter determination submodule is used to input all the first interference harmonic components and all the second interference harmonic components detected in the current operation cycle and the measured transmission line loss analysis results into the filtering parameter analysis model, and obtain the optimal cutoff frequency and optimal damping effect parameters of the filter connected before the input port of the measurement module as the optimal filtering parameters.

[0043] The present invention provides a sintering equipment data acquisition method, which is applied to any one of the sintering equipment data acquisition systems in embodiments 1 to 9, comprising:

[0044] S1: Real-time detection of the first interference harmonic component in the operating data analog quantity of the sintering equipment;

[0045] S2: Current harmonic detection model, which detects the second interfering harmonic component in the power supply current of the power supply cabinet in real time;

[0046] S3: Perform line loss analysis on all transmission network cables connected to the measurement module to obtain a measured transmission line loss analysis result;

[0047] S4: determining the optimal filtering parameters of the filter connected before the input port of the measurement module based on all the first interference harmonic components and all the second interference harmonic components detected in the current operation cycle and the measurement transmission line loss analysis result;

[0048] S5: setting filtering parameters of the filter connected before the input port of the measuring module based on the optimal filtering parameters, and controlling the measuring module to measure the operating data of the sintering equipment in real time to obtain the data acquisition results of the sintering equipment.

[0049] The beneficial effects of the present invention compared with the prior art are as follows: based on the first interference harmonic component in the operating data analog quantity of the sintering equipment and the second interference harmonic component in the power supply current of the power supply cabinet detected in the current operating cycle and the measurement transmission line loss analysis result, the optimal filtering parameters of the filter connected before the input port of the measuring module are reasonably determined, so as to achieve accurate filtering of the interference harmonics in the operating data analog quantity of the sintering equipment obtained by the measuring module in the sintering equipment data acquisition system, thereby improving the anti-interference and stability of the sintering equipment data acquisition system.

[0050] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures specifically pointed out in this application document.

[0051] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0053] Figure 1 It is a schematic diagram of functional modules included in the sintering equipment data acquisition system in an embodiment of the present invention;

[0054] Figure 2 Schematic diagram of functional submodules included in the first harmonic detection module in an embodiment of the present invention;

[0055] Figure 3 Schematic diagram of functional submodules included in the network cable loss analysis module in an embodiment of the present invention;

[0056] Figure 4 A schematic diagram of functional submodules included in the filter parameter setting module in an embodiment of the present invention;

[0057] Figure 5 It is a flow chart of the data collection method of sintering equipment in an embodiment of the present invention. DETAILED DESCRIPTION

[0058] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0059] Embodiment 1:

[0060] The present invention provides a sintering equipment data acquisition system, referring to Figure 1 ,include:

[0061] The first harmonic detection module is used to detect the first interference harmonic component in the operation data analog quantity of the sintering equipment in real time;

[0062] The second harmonic detection module is used to detect the second interfering harmonic component in the power supply current of the power supply cabinet in real time based on the harmonic detection model in the current;

[0063] The network cable loss analysis module is used to perform line loss analysis on all transmission network cables connected to the measurement module to obtain the measured transmission line loss analysis results;

[0064] A filter parameter setting module, used to determine the optimal filter parameters of the filter connected before the input port of the measurement module based on all the first interference harmonic components and all the second interference harmonic components detected in the current operation cycle and the measurement transmission line loss analysis result;

[0065] The equipment data acquisition module is used to set the filtering parameters of the filter connected before the input port of the measurement module based on the optimal filtering parameters, and control the measurement module to measure the operating data of the sintering equipment in real time to obtain the sintering equipment data acquisition results.

[0066] In this embodiment, the sintering equipment is, for example, a medium frequency sintering furnace.

[0067] In this embodiment, the analog quantity of the operation data of the sintering equipment is the analog signal of the allowable data of the sintering equipment collected by the collection module, such as the real-time voltage analog signal and real-time current analog signal of the sintering equipment collected by a voltage sensor or a current sensor.

[0068] In this embodiment, the harmonic detection model in the current is a model obtained by training a neural network model using a large amount of periodic power supply current data of a sintering equipment data acquisition system that has been calibrated to include interference harmonic components as training samples; during the training process, the periodic power supply current data is used as the model input, and the interference harmonic components included therein that have been calibrated are used as the model output;

[0069] The periodic power supply current data is the power supply current data of the power supply cabinet of the sintering equipment data acquisition system over a period of time.

[0070] In this embodiment, based on the current harmonic detection model, the second interfering harmonic component in the power supply current of the power supply cabinet is detected in real time, that is,

[0071] The power supply current data of the power supply cabinet of the sintering equipment data acquisition system in the current operation cycle is input into the current harmonic detection model to obtain the second interference harmonic component in the power supply current of the power supply cabinet.

[0072] In this embodiment, the current operation cycle is a period of time from the last startup action of the power supply cabinet of the sintering equipment data acquisition system to the current moment.

[0073] In this embodiment, the measurement module includes a plurality of data acquisition devices, such as a voltage sensor, a current sensor, a temperature sensor, a humidity sensor, a pressure sensor, etc.

[0074] In this embodiment, the transmission network cable is a physical network cable (using Category 6 network cable) used to connect each data acquisition device included in the measurement module with other devices (such as a power supply cabinet, a controller, etc.) in the sintering equipment data acquisition system.

[0075] In this embodiment, the filter uses both frequency selection characteristics and damping effect to filter out interfering harmonics, thereby eliminating interfering harmonics that are different in amplitude and frequency from the fundamental frequency wave;

[0076] First, the frequency selection characteristics of the filter can make the filter only allow the fundamental frequency wave to pass through, and prevent the interference harmonics with the same amplitude and frequency as the fundamental frequency wave from passing through; in this way, even if the interference harmonics have the same amplitude and frequency as the fundamental frequency wave, since the filter does not allow them to pass through completely, the purpose of filtering out the interference harmonics can be achieved;

[0077] Secondly, the damping effect of the filter can make the filter attenuate signals of all frequencies to varying degrees; when the frequency of the interfering harmonic is close to that of the fundamental wave, since the filter has a damping effect on all frequency signals, it can effectively suppress the interfering harmonic.

[0078] In this embodiment, the operation data of the sintering equipment is data used to represent the operation status of the sintering equipment, such as the real-time current, real-time voltage, real-time ambient temperature, real-time ambient humidity, etc. of the sintering equipment.

[0079] In this embodiment, the sintering equipment data acquisition result includes multiple real-time operation data of the sintering equipment acquired by using all the data acquisition devices in the measurement module.

[0080] The beneficial effects of the above technology are: based on the first interference harmonic component in the operating data analog quantity of the sintering equipment and the second interference harmonic component in the power supply current of the power supply cabinet detected in the current operating cycle, as well as the measurement transmission line loss analysis results, the optimal filtering parameters of the filter connected before the input port of the measurement module are reasonably determined, and the interference harmonics in the operating data analog quantity of the sintering equipment obtained by the measurement module in the sintering equipment data acquisition system are accurately filtered, thereby improving the anti-interference and stability of the sintering equipment data acquisition system.

[0081] Embodiment 2:

[0082] Based on Example 1, the first harmonic detection module, refer to Figure 2 ,include:

[0083] The measurement submodule is used to obtain the operating data simulation of the sintering equipment in real time;

[0084] The frequency domain analysis submodule is used to fit a spectrum diagram based on the operation data simulation quantity of the sintering equipment obtained in the current operation cycle, and perform frequency domain analysis on the spectrum diagram to obtain all first suspected harmonic components;

[0085] The phase analysis submodule is used to fit a phase-frequency diagram based on the operation data simulation quantity of the sintering equipment obtained in the current operation cycle, and perform phase analysis on the phase-frequency diagram to obtain all second suspected harmonic components;

[0086] The harmonic detection submodule is used to detect the first interfering harmonic component in the operation data analog quantity of the sintering equipment based on all the first suspected harmonic components and all the second suspected harmonic components.

[0087] In this embodiment, performing FFT spectrum analysis to obtain a spectrum diagram specifically includes: decomposing the operation data analog signal into a DC component (that is, a constant) and the sum of a plurality of (generally infinite) sinusoidal signals through Fourier transform. Each sinusoidal component has its own frequency and amplitude; thus, with the frequency value as the horizontal axis and the amplitude as the vertical axis, the amplitudes of the plurality of sinusoidal signals are plotted on the corresponding frequencies, and an amplitude-frequency distribution diagram of the signal, i.e., a spectrum diagram, is obtained.

[0088] In this embodiment, the frequency domain analysis is performed on the spectrum diagram to obtain all first suspected harmonic components, including:

[0089] According to the spectrum diagram, determine the frequency points corresponding to the harmonic components;

[0090] According to the frequency point, the corresponding harmonic signal is extracted.

[0091] In this embodiment, the phase-frequency diagram is a graphical representation method that simultaneously displays frequency and phase information; it uses frequency as the horizontal axis and phase as the vertical axis, and displays the phase information at different frequencies in color or grayscale.

[0092] In this embodiment, phase analysis is performed on the phase-frequency diagram to obtain all second suspected harmonic components, including:

[0093] Inputting the phase-frequency diagram into a suspected harmonic component determination model to obtain all second suspected harmonic components;

[0094] The suspected harmonic component determination model is a model obtained by training a neural network model using a large number of phase-frequency diagrams that are calibrated to contain all the second suspected harmonic components as training samples;

[0095] In the training process, the phase-frequency diagram is used as the model input, and all the calibrated second suspected harmonic components contained therein are used as the model output.

[0096] The beneficial effects of the above technology are: by performing frequency domain analysis and phase analysis on the allowable data analog quantity of the sintering equipment obtained in the current operating cycle, a preliminary rough determination of the interference harmonics in the allowable data analog quantity of the sintering equipment obtained in the current operating cycle is achieved, and based on this, the first interference harmonic component in the operating data analog quantity of the sintering equipment is further accurately determined.

[0097] Embodiment 3:

[0098] Based on Example 2, the harmonic detection submodule includes:

[0099] A frequency interval determination unit, used to determine the frequency interval to which all first suspected harmonic components belong in the corresponding frequency spectrum diagram, and to determine the frequency interval to which all second suspected harmonic components belong in the corresponding phase-frequency diagram;

[0100] A difference interval determination unit, used to determine a difference frequency interval between a frequency interval to which all first suspected harmonic components belong in a corresponding frequency spectrum diagram and a frequency interval to which all second suspected harmonic components belong in a corresponding phase-frequency diagram;

[0101] The harmonic component determination unit is used to analyze the energy characteristics of the operation data simulation quantity of the sintering equipment obtained in the current operation cycle based on the difference frequency interval, and obtain the first interference harmonic component in the operation data simulation quantity of the sintering equipment.

[0102] In this embodiment, the frequency interval to which the first suspected harmonic component belongs in the corresponding frequency spectrum is a numerical interval consisting of the frequencies of all harmonic components in the first suspected harmonic component whose frequencies are integer multiples of the fundamental frequency.

[0103] In this embodiment, the frequency interval to which the second suspected harmonic component belongs in the corresponding phase-frequency diagram is a numerical interval consisting of the frequencies of all harmonic components in the second suspected harmonic component whose frequencies are integer multiples of the fundamental frequency.

[0104] The beneficial effect of the above technology is: by comparing the differences between the frequency intervals to which all first suspected harmonic components belong in the corresponding frequency spectrum diagram and the frequency intervals to which all second suspected harmonic components belong in the corresponding phase-frequency diagram, it is convenient to subsequently analyze the energy characteristics of the operating data simulation quantity of the sintering equipment obtained in the current operating cycle, so as to obtain the first interfering harmonic component in the operating data simulation quantity of the sintering equipment more accurately.

[0105] Embodiment 4:

[0106] Based on Embodiment 3, the difference interval determining unit includes:

[0107] A first difference comparison subunit is used to regard the independent continuous frequency intervals contained in the frequency intervals to which all first suspected harmonic components belong in the corresponding frequency spectrum diagram and not contained in the frequency intervals to which all second suspected harmonic components belong in the corresponding phase-frequency diagram as the first difference frequency intervals;

[0108] The second difference comparison subunit is used to regard the independent continuous frequency interval that is not included in the frequency interval to which all the first suspected harmonic components belong in the corresponding frequency spectrum diagram and is included in the frequency interval to which all the second suspected harmonic components belong in the corresponding phase-frequency diagram as the second difference frequency interval;

[0109] The difference frequency interval includes a first difference frequency interval and a second difference frequency interval.

[0110] In this embodiment, the independent continuous frequency interval is a frequency value interval composed of multiple continuous integer multiples of the fundamental frequency, and the frequency interval to which all first suspected harmonic components belong in the corresponding spectrum diagram or the frequency interval to which all second suspected harmonic components belong in the corresponding spectrum diagram does not contain integer multiples of the fundamental frequency value that is continuous with the independent continuous frequency interval.

[0111] The beneficial effect of the above technology is: by making a difference comparison between the frequency intervals to which all the first suspected harmonic components in the corresponding spectrum diagram belong and the frequency intervals to which all the second suspected harmonic components in the corresponding phase-frequency diagram belong, two difference frequency intervals are obtained, which facilitates the subsequent analysis of the energy characteristics of the operating data simulation quantity of the sintering equipment obtained in the current operating cycle.

[0112] Embodiment 5:

[0113] On the basis of Embodiment 4, the harmonic component determination unit includes:

[0114] A first reference interval determination subunit is used to perform interval expansion on each first difference frequency interval to obtain a first reference frequency interval of each first difference frequency interval, and at the same time, perform interval expansion on each second difference frequency interval to obtain a first reference frequency interval of each second difference frequency interval;

[0115] A second reference interval determination subunit is used to regard all independent continuous frequency intervals in the frequency interval to which all second suspected harmonic components belong in the corresponding phase-frequency diagram and located within the first reference frequency interval of each first difference frequency interval as all second reference frequency intervals corresponding to the first difference frequency interval, and at the same time, regard all independent continuous frequency intervals in the frequency interval to which all first suspected harmonic components belong in the corresponding phase-frequency diagram and located within the first reference frequency interval of each second difference frequency interval as all second reference frequency intervals corresponding to the second difference frequency interval;

[0116] The harmonic component determination subunit is used to obtain the first interference harmonic component in the operation data simulation quantity of the sintering equipment based on the energy characteristics of the operation data simulation quantity of the sintering equipment obtained in the current operation cycle in all second reference frequency intervals in each difference frequency interval.

[0117] In this embodiment, each first difference frequency interval or each second difference frequency interval is expanded, including:

[0118] That is, the values ​​at both ends of the first difference frequency interval or the second difference frequency interval are extended so that the corresponding first difference frequency interval or the second difference frequency interval includes a larger value range. For example, the value range included in the first difference frequency interval or the second difference frequency interval can be expanded to twice the original value, and the extended interval ranges at both ends of the first difference frequency interval or the second difference frequency interval are equal.

[0119] The beneficial effect of the above technology is: by determining the reference frequency interval of the current difference frequency interval in another difference frequency interval, the scope of the energy characteristic analysis of the operating data simulation quantity of the sintering equipment obtained in the current operating cycle is refined to obtain the first interference harmonic component in the operating data simulation quantity of the sintering equipment.

[0120] Embodiment 6:

[0121] On the basis of Embodiment 5, the harmonic component determination subunit includes:

[0122] The power spectrum fitting terminal is used to generate a power spectrum density function based on the simulated operation data of the sintering equipment acquired in the current operation cycle;

[0123] An integral value calculation terminal is used to calculate the integral value of the power spectrum density function in each difference frequency interval, and calculate the integral value of the power spectrum density function in each reference frequency interval of each difference frequency interval;

[0124] The energy comparison end is used to determine the deviation between the integral value of the power spectrum density function in each difference frequency interval and the average of the integral values ​​of the power spectrum density function in all reference frequency intervals corresponding to the difference frequency interval;

[0125] The harmonic component determination end is used to obtain the first interfering harmonic component in the operating data simulation of the sintering equipment based on the deviation of all difference frequency intervals and all the first suspected harmonic components and second suspected harmonic components in the operating data simulation of the sintering equipment obtained in the current operating cycle.

[0126] In this embodiment, the power spectrum density function represents the change of the power of the operation data simulation signal of the sintering equipment acquired in the current operation cycle with the frequency, that is, the distribution of the signal power in the frequency domain.

[0127] In this embodiment, determining the deviation between the integral value of the power spectrum density function in each difference frequency interval and the average of the integral values ​​of the power spectrum density function in all reference frequency intervals corresponding to the difference frequency interval includes:

[0128] The ratio of the difference between the integral value of the power spectrum density function in each difference frequency interval and the mean of the integral values ​​of the power spectrum density function in all reference frequency intervals corresponding to the difference frequency interval to the mean of the integral value of the power spectrum density function in all reference frequency intervals corresponding to the difference frequency interval is taken as the degree of deviation between the integral value of the power spectrum density function in each difference frequency interval and the mean of the integral value of the power spectrum density function in all reference frequency intervals corresponding to the difference frequency interval.

[0129] The beneficial effects of the above technology are: by integrating the power spectrum density function in each difference frequency interval and each corresponding reference frequency interval respectively, and by obtaining the deviation between the integral value of the power spectrum density function in each difference frequency interval and the average of the integral values ​​of the power spectrum density function in all reference frequency intervals of the corresponding difference frequency interval, and combining all the first suspected harmonic components and the second suspected harmonic components in the operation data simulation of the sintering equipment obtained in the current operation cycle, the first interfering harmonic component in the operation data simulation of the sintering equipment is accurately determined.

[0130] Embodiment 7:

[0131] On the basis of Embodiment 6, the harmonic component determination terminal includes:

[0132] The non-harmonic component screening sub-terminal is used to screen out all the first suspected harmonic components or second suspected harmonic components corresponding to all the difference frequency intervals, and to treat all the first suspected harmonic components and second suspected harmonic components whose deviation exceeds the deviation threshold as all the non-harmonic components;

[0133] The harmonic component determination sub-terminal is used to treat all the first suspected harmonic components and the second suspected harmonic components in the operation data simulation of the sintering equipment obtained in the current operation cycle except all the non-harmonic components as the first interfering harmonic components in the operation data simulation of the sintering equipment.

[0134] In this embodiment, the deviation threshold is a preset value that the deviation of the non-harmonic component must exceed.

[0135] In this embodiment, harmonic energy is an important component of signal energy, indicating the contribution of the signal to each harmonic component. Generally speaking, the magnitude of harmonic energy depends mainly on two factors: one is the relative strength of the harmonic component in the signal, and the other is the number of harmonic components.

[0136] The frequency interval of the harmonic components obtained based on phase analysis and the frequency interval of the harmonic components obtained based on frequency domain analysis are both related to harmonic energy. If the position relationship between the two intervals is relatively close, it means that the occurrence time and frequency of each harmonic component are relatively close, and the contribution of these harmonic components to the signal is relatively large. Conversely, if the relationship between the two intervals is far, it means that the contribution of each harmonic component to the signal is relatively small.

[0137] The beneficial effect of the above technology is: by comparing the energy of the signal quantity within the frequency of the harmonic component with the difference based on phase analysis and frequency domain analysis and the energy of the signal quantity close to its frequency, the frequency interval that does not actually belong to the harmonic component in the difference frequency interval is accurately excluded, thereby achieving accurate identification of the harmonic components in all first suspected harmonic components and all second suspected harmonic components.

[0138] Embodiment 8:

[0139] Based on Example 1, the network cable loss analysis module refers to Figure 3 ,include:

[0140] A line loss rate calculation submodule, used to calculate the original parameters of each transmission network cable connected to the measurement module based on the original parameters of each transmission network cable connected to the measurement module;

[0141] The sequence generation submodule is used to sort the line loss rates of all transmission network cables connected to the measurement module based on a preset sorting method, and generate a line loss rate sequence as a measured transmission line loss analysis result.

[0142] In this embodiment, the original parameters of the transmission network cable include, for example, the length, cross-sectional area, voltage level, current size, etc. of the transmission network cable.

[0143] In this embodiment, based on the original parameters of each transmission network cable connected to the measurement module, the line loss rate of each transmission network cable connected to the measurement module is calculated, including:

[0144] Inputting the original parameters of each transmission network cable connected to the measurement module into a preset line loss calculation model to obtain the line loss rate of each transmission network cable connected to the measurement module;

[0145] Among them, the line loss calculation model is a model obtained by using a large number of line loss calculation examples of transmission network cables as training samples for neural network training. During the training process, the original parameters of the transmission network cables in the line loss calculation examples are used as model inputs, and the line loss rate finally calculated in the line loss calculation examples is used as model outputs.

[0146] In this embodiment, the preset sorting method is to retrieve the sorting priority of the transmission network cable based on the type of devices connected to both ends of the transmission network cable, and determine the priority of all transmission network cables connected to the measurement module;

[0147] And sorting all the transmission network cables connected to the measurement module according to the priority is the preset sorting method.

[0148] The beneficial effect of the above technology is: based on calculating the original parameters of each transmission network cable connected to the measurement module and sorting the calculation results, the measured transmission line loss analysis results are obtained.

[0149] Embodiment 9:

[0150] Based on Example 1, the filter parameter setting module refers to Figure 4 ,include:

[0151] The analysis model building submodule is used to build a filter parameter analysis model;

[0152] The parameter determination submodule is used to input all the first interference harmonic components and all the second interference harmonic components detected in the current operation cycle and the measured transmission line loss analysis results into the filtering parameter analysis model, and obtain the optimal cutoff frequency and optimal damping effect parameters of the filter connected before the input port of the measurement module as the optimal filtering parameters.

[0153] In this embodiment, a filtering parameter analysis model is constructed, including:

[0154] The artificial filtering instances of the current sintering equipment data acquisition system in a large number of different operating cycles and the filtering effect evaluation values ​​of the artificial filtering instances are used as training samples for deep learning to obtain a filtering parameter analysis model, wherein the artificial filtering instances include all first interference harmonic components and all second interference harmonic components detected by the current sintering equipment data acquisition system in the corresponding operating cycle and the measured transmission line loss analysis results, and also include the cutoff frequency and damping effect parameters set in this filtering process, and the above parameters are determined in the same way as the corresponding parameters in this embodiment;

[0155] The filtering analysis model can output the optimal cutoff frequency and optimal damping effect parameters of the filter connected before the input port of the measurement module based on all the first interference harmonic components and all the second interference harmonic components detected in the current operation cycle of the input and the measured transmission line loss analysis results.

[0156] In this embodiment, the optimal cutoff frequency and optimal damping effect parameters of the filter are the cutoff frequency and damping effect parameters that the filter should be set to when the sintering equipment data acquisition system has the best anti-interference performance;

[0157] The filter's cutoff frequency refers to a certain frequency point where the filter starts to reduce the signal amplitude; in the frequency range before this frequency point, the filter allows the signal to pass; and in the frequency range after the cutoff frequency, the filter will filter out the signal.

[0158] The damping effect parameters of the filter include at least:

[0159] Damping ratio: Damping ratio is a dimensionless value that indicates the time required for the natural oscillation amplitude of the system to decay to 1% of the initial amplitude. The larger the damping ratio, the faster the amplitude of the system decays and the more obvious the damping effect.

[0160] Time constant: The time constant is a physical quantity that describes the natural oscillation period of a system, and it is closely related to the damping ratio. The larger the time constant, the longer the natural oscillation period of the system and the weaker the damping effect.

[0161] The beneficial effects of the above technology are: based on the filter parameter setting model built by deep learning, all the first interference harmonic components and all the second interference harmonic components detected in the current operation cycle and the measured transmission line loss analysis results are input into the filter parameter analysis model, so as to accurately set the optimal filter parameters of the filter connected in front of the input port of the measurement module, so as to ensure that the measurement module of the sintering equipment data acquisition system has good anti-interference and stability.

[0162] Embodiment 10:

[0163] The present invention provides a sintering equipment data acquisition method, which is applied to the sintering equipment data acquisition system described in any one of embodiments 1 to 9, referring to Figure 5 ,include:

[0164] S1: Real-time detection of the first interference harmonic component in the operating data analog quantity of the sintering equipment;

[0165] S2: Current harmonic detection model, which detects the second interfering harmonic component in the power supply current of the power supply cabinet in real time;

[0166] S3: Perform line loss analysis on all transmission network cables connected to the measurement module to obtain a measured transmission line loss analysis result;

[0167] S4: determining the optimal filtering parameters of the filter connected before the input port of the measurement module based on all the first interference harmonic components and all the second interference harmonic components detected in the current operation cycle and the measurement transmission line loss analysis result;

[0168] S5: setting filtering parameters of the filter connected before the input port of the measuring module based on the optimal filtering parameters, and controlling the measuring module to measure the operating data of the sintering equipment in real time to obtain the data acquisition results of the sintering equipment.

[0169] The beneficial effects of the above technology are: based on the first interference harmonic component in the operating data analog quantity of the sintering equipment and the second interference harmonic component in the power supply current of the power supply cabinet detected in the current operating cycle, as well as the measurement transmission line loss analysis results, the optimal filtering parameters of the filter connected before the input port of the measurement module are reasonably determined, and the interference harmonics in the operating data analog quantity of the sintering equipment obtained by the measurement module in the sintering equipment data acquisition system are accurately filtered, thereby improving the anti-interference and stability of the sintering equipment data acquisition system.

[0170] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A sintering equipment data acquisition system, characterized in that: include: The first harmonic detection module is used to detect the first interference harmonic component in the operation data analog quantity of the sintering equipment in real time; The second harmonic detection module is used to detect the second interfering harmonic component in the power supply current of the power supply cabinet in real time based on the harmonic detection model in the current; The network cable loss analysis module is used to perform line loss analysis on all transmission network cables connected to the measurement module to obtain the measured transmission line loss analysis results; A filter parameter setting module, used to determine the optimal filter parameters of the filter connected before the input port of the measurement module based on all the first interference harmonic components and all the second interference harmonic components detected in the current operation cycle and the measurement transmission line loss analysis result; The equipment data acquisition module is used to set the filter parameters of the filter connected before the input port of the measurement module based on the optimal filter parameters, and control the measurement module to measure the operation data of the sintering equipment in real time to obtain the sintering equipment data acquisition results; Wherein, the first harmonic detection module includes: The measurement submodule is used to obtain the operating data simulation of the sintering equipment in real time; The frequency domain analysis submodule is used to fit a spectrum diagram based on the operation data simulation quantity of the sintering equipment obtained in the current operation cycle, and perform frequency domain analysis on the spectrum diagram to obtain all first suspected harmonic components; The phase analysis submodule is used to fit a phase-frequency diagram based on the operation data simulation quantity of the sintering equipment obtained in the current operation cycle, and perform phase analysis on the phase-frequency diagram to obtain all second suspected harmonic components; A harmonic detection submodule, used for detecting a first interfering harmonic component in the operation data analog quantity of the sintering equipment based on all first suspected harmonic components and all second suspected harmonic components; Among them, the harmonic detection submodule includes: A frequency interval determination unit, used to determine the frequency interval to which all first suspected harmonic components belong in the corresponding frequency spectrum diagram, and to determine the frequency interval to which all second suspected harmonic components belong in the corresponding phase-frequency diagram; A difference interval determination unit, used to determine a difference frequency interval between a frequency interval to which all first suspected harmonic components belong in a corresponding frequency spectrum diagram and a frequency interval to which all second suspected harmonic components belong in a corresponding phase-frequency diagram; A harmonic component determination unit is used to analyze the energy characteristics of the operation data simulation quantity of the sintering equipment acquired in the current operation cycle based on the difference frequency interval, and obtain the first interference harmonic component in the operation data simulation quantity of the sintering equipment; The difference interval determination unit includes: A first difference comparison subunit is used to regard the independent continuous frequency intervals contained in the frequency intervals to which all first suspected harmonic components belong in the corresponding frequency spectrum diagram and not contained in the frequency intervals to which all second suspected harmonic components belong in the corresponding phase-frequency diagram as the first difference frequency intervals; The second difference comparison subunit is used to regard the independent continuous frequency interval that is not included in the frequency interval to which all the first suspected harmonic components belong in the corresponding frequency spectrum diagram and is included in the frequency interval to which all the second suspected harmonic components belong in the corresponding phase-frequency diagram as the second difference frequency interval; The difference frequency interval includes a first difference frequency interval and a second difference frequency interval; Wherein, the harmonic component determination unit includes: A first reference interval determination subunit is used to perform interval expansion on each first difference frequency interval to obtain a first reference frequency interval of each first difference frequency interval, and at the same time, perform interval expansion on each second difference frequency interval to obtain a first reference frequency interval of each second difference frequency interval; A second reference interval determination subunit is used to regard all independent continuous frequency intervals in the frequency interval to which all second suspected harmonic components belong in the corresponding phase-frequency diagram and located within the first reference frequency interval of each first difference frequency interval as all second reference frequency intervals corresponding to the first difference frequency interval, and at the same time, regard all independent continuous frequency intervals in the frequency interval to which all first suspected harmonic components belong in the corresponding phase-frequency diagram and located within the first reference frequency interval of each second difference frequency interval as all second reference frequency intervals corresponding to the second difference frequency interval; The harmonic component determination subunit is used to obtain the first interference harmonic component in the operation data simulation quantity of the sintering equipment based on the energy characteristics of the operation data simulation quantity of the sintering equipment obtained in the current operation cycle in all second reference frequency intervals in each difference frequency interval.

2. The sintering equipment data acquisition system according to claim 1, characterized in that: The harmonic component determination subunit comprises: The power spectrum fitting terminal is used to generate a power spectrum density function based on the simulated operation data of the sintering equipment acquired in the current operation cycle; An integral value calculation terminal is used to calculate the integral value of the power spectrum density function in each difference frequency interval, and calculate the integral value of the power spectrum density function in each reference frequency interval of each difference frequency interval; The energy comparison end is used to determine the deviation between the integral value of the power spectrum density function in each difference frequency interval and the average of the integral values ​​of the power spectrum density function in all reference frequency intervals corresponding to the difference frequency interval; The harmonic component determination end is used to obtain the first interfering harmonic component in the operating data simulation of the sintering equipment based on the deviation of all difference frequency intervals and all the first suspected harmonic components and second suspected harmonic components in the operating data simulation of the sintering equipment obtained in the current operating cycle.

3. The sintering equipment data acquisition system according to claim 2, characterized in that: Harmonic component determination terminal, including: The non-harmonic component screening sub-terminal is used to screen out all the first suspected harmonic components or second suspected harmonic components corresponding to all the difference frequency intervals, and to treat all the first suspected harmonic components and second suspected harmonic components whose deviation exceeds the deviation threshold as all the non-harmonic components; The harmonic component determination sub-terminal is used to treat all the first suspected harmonic components and the second suspected harmonic components in the operation data simulation of the sintering equipment obtained in the current operation cycle except all the non-harmonic components as the first interfering harmonic components in the operation data simulation of the sintering equipment.

4. The sintering equipment data acquisition system according to claim 1, characterized in that: Network cable loss analysis module, including: A line loss rate calculation submodule, used to calculate the line loss rate of each transmission network line connected to the measurement module based on the original parameters of each transmission network line connected to the measurement module; The sequence generation submodule is used to sort the line loss rates of all transmission network cables connected to the measurement module based on a preset sorting method, and generate a line loss rate sequence as a measured transmission line loss analysis result.

5. The sintering equipment data acquisition system according to claim 1, characterized in that: Filter parameter setting module, including: The analysis model building submodule is used to build a filter parameter analysis model; The parameter determination submodule is used to input all the first interference harmonic components and all the second interference harmonic components detected in the current operation cycle and the measured transmission line loss analysis results into the filtering parameter analysis model, and obtain the optimal cutoff frequency and optimal damping effect parameters of the filter connected before the input port of the measurement module as the optimal filtering parameters.

6. A sintering equipment data collection method, characterized in that: The sintering equipment data acquisition system applied to any one of claims 1 to 5 comprises: S1: Real-time detection of the first interference harmonic component in the operating data analog quantity of the sintering equipment; S2: Current harmonic detection model, which detects the second interfering harmonic component in the power supply current of the power supply cabinet in real time; S3: Perform line loss analysis on all transmission network cables connected to the measurement module to obtain a measured transmission line loss analysis result; S4: determining the optimal filtering parameters of the filter connected before the input port of the measurement module based on all the first interference harmonic components and all the second interference harmonic components detected in the current operation cycle and the measurement transmission line loss analysis result; S5: setting filtering parameters of the filter connected before the input port of the measuring module based on the optimal filtering parameters, and controlling the measuring module to measure the operating data of the sintering equipment in real time to obtain the data acquisition results of the sintering equipment.

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