Gateway terminal based on multi-source signal fusion processing

Abstract

The application discloses a gateway terminal based on multi-source signal fusion processing and relates to the technical field of signal processing.The application solves the problem that the related processing procedure of insufficient control of data format conversion and the related data check mode for missing check are not set.The application monitors the input rate of multi-source signals in different periods, generates the corresponding input rate change curves, identifies the associated areas between different conversion rates and different change curves based on the determined change curves and the related conversion rates, and when the coverage areas of the corresponding associated areas in several curves are at the minimum difference, it represents that the conversion rates of each signal are relatively consistent during conversion, thereby enabling the multiple different multi-source signals to be associatedly converted in the same period to a certain extent, avoiding the situation that some signals are converted fast and some signals are converted slow, and thereby guaranteeing the subsequent signal integrity and reducing the loss rate.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of signal processing, and particularly relates to a gateway terminal based on multi-source signal fusion processing. BACKGROUND

[0002] The gateway terminal receives signals from different data sources through various communication interfaces (such as an Ethernet, a wireless communication module and the like); the data sources can include sensors, device controllers, other gateways and the like, and in an industrial Internet of Things scene, the gateway can receive data from various types of sensors such as temperature sensors, pressure sensors, flow sensors and the like.

[0003] An application with the publication number CN112986928A discloses a signal sorting multi-source fusion processing method in a complex electromagnetic environment. The application solves the sorting problem of multi-source radar signals in a dense environment by using a multi-source fusion algorithm based on measured data, fully considers the problems of low sorting efficiency and low pulse utilization rate that may exist in radar sorting, uses a multi-source information fusion algorithm to perform data fusion on pulse data before sorting, effectively solves the problem of excessive sorting pulse information caused by dense signal sources, and further improves the sorting efficiency in a dense environment. The application performs fusion processing on the radiation source information after sorting, better solves the radiation source redundancy problem caused by sorting processing errors, and further reduces false targets. The application performs fusion processing on the remaining pulses after sorting, successfully sorts out new radiation sources, and further improves the utilization rate of pulse information.

[0004] When the gateway terminal is used for multi-source signal fusion processing, the format is generally directly converted and then directly fused, but the original fusion processing method does not fully consider the format conversion process between different data signals, so that some data signals may have a delay in the conversion process due to inconsistent conversion rates, resulting in data loss or long fusion processing delay, and the related signals with data loss are not uniformly checked, which may cause errors when the signals are displayed and processed later. SUMMARY

[0005] In view of the deficiencies of the prior art, the application provides a gateway terminal based on multi-source signal fusion processing, which solves the problem that the related processing process of insufficient control of data format conversion is not provided with a related data checking method for loss checking.

[0006] To achieve the above object, the application is implemented by the following technical scheme: a gateway terminal based on multi-source signal fusion processing, comprising a signal input monitoring end, a format conversion processing end, an arrangement and fusion end, a real-time checking end and a signal generation end.

[0007] Among them:

[0008] The signal input monitoring end monitors the signal input of different multi-source ports where signals flow through the gateway terminal, and transmits the different signal input bit rates of different multi-source ports to the format conversion processing end in real time;

[0009] The format conversion processing end converts the formats of different signals input from different multi-source ports. By limiting the supervision cycle, it determines the specific conversion rate of the relevant signals within this supervision cycle and determines the format to be converted in the next group of supervision cycles. The format to be converted in the first group of supervision cycles is set in advance by designated relevant personnel. The specific method is as follows:

[0010] Determine a set of supervision periods T, where T is a preset value, and mark the different signal input bit rates corresponding to different moments in this supervision period T as BT i , where i represents different signals, based on different BT corresponding to different moments i Generate a signal bit rate variation curve belonging to this supervision period T;

[0011] Randomly select a group of signals as the current signal, and determine the conversion rate Vz of the current signal format to other formats from the cloud data i-t , where t represents different other formats, and its Vz i-t The signal bit rate change curve of the signal has been determined in advance in the cloud data, and based on the determined conversion rate Vz i-t , construct a standard line perpendicular to the vertical coordinate axis in the coordinate system where the signal bit rate change curve is located, different conversion rates Vz i-t The corresponding different standard lines are marked with different marks;

[0012] Determine the different formats of different signals, and based on the determined different conversion rates, confirm the corresponding standard line in the bit rate change curve of the corresponding signal, different conversion rates Vz i-t The corresponding different standard lines are marked with different marks;

[0013] The standard lines with the same mark are processed as follows: the end point of the signal bit rate change curve is confirmed, an edge line passing through the end point and perpendicular to the standard line is constructed, the associated area between the signal bit rate change curve and the standard line is confirmed based on the edge line, and the total area of ​​the associated area is marked as M i-t , and then the total area M generated by the standard line on the different signal bit rate change curves i-t Perform variance processing and determine the standard deviation value F t , from several F t Select F tmin The format corresponding to the corresponding standard line will be used as the format to be converted in the next regulatory cycle;

[0014] The signal input bit rate BT i is the number of binary bits transmitted per unit time, the conversion rate Vz i-t is the number of binary bits converted per unit time;

[0015] The collating and fusion end collates and bundles several groups of signals that have completed format conversion within the corresponding supervision cycle. Based on the timestamps carried by each group of different signals during the input process, several groups of signals with the same timestamp are fused to generate a fused signal package.

[0016] The real-time verification end performs ratio verification analysis on the stored fusion signal packets, determines the standard verification interval based on the numerical characteristics generated during the corresponding supervision period, and then performs real-time verification on each group of fusion signal packets to assess whether different signals in the fusion signal packet are missing. The specific method is as follows:

[0017] Based on the format to be converted determined within the corresponding regulatory period, identify the standard line corresponding to the format to be converted and calibrate the standard line as the format line; determine the numerical parameters corresponding to the format line and the corresponding signal bit rate change curve at the same moment; and determine their associated difference Gz, where Gz is the difference between the two sets of numerical parameters and Gz>0; then determine the associated difference Gz at the corresponding moment from other signal bit rate change curves; perform ratio processing on the associated difference Gz in different signal bit rate change curves at the same moment to determine a ratio sequence; then, select the minimum ratio sequence and the maximum ratio sequence from the determined multiple ratio sequences as standard verification intervals;

[0018] Compare the numerical capacities carried by different signals in the fusion signal package to determine the capacity ratio sequence, and identify whether this capacity ratio sequence belongs to the verification interval. If so, the verification is normal; if not, the verification is abnormal and a second verification is performed;

[0019] Based on the fusion signal packet with verification anomaly, confirm the associated timestamp of this fusion signal packet, and then determine the signal input bit rate at the corresponding time based on this associated timestamp. Perform ratio processing on several groups of signal input bit rates to determine the input ratio sequence, and identify whether this input ratio sequence is consistent with the capacity ratio sequence. If not, generate a data anomaly signal through the signal generation end and directly display it. The relevant fusion signal packet with data anomaly signal indicates that there is related data missing;

[0020] If the input ratio sequence is consistent with the capacity ratio sequence, it means that there is no abnormality in the fused signal package.

[0021] The present invention provides a gateway terminal based on multi-source signal fusion processing. Compared with the prior art, it has the following advantages:

[0022] The application monitors the input rate of multi-source signals in different periods, generates the corresponding input rate change curve, and identifies the correlation area between different conversion rates and different change curves based on the determined change curve and the related conversion rate. When the coverage area of the corresponding correlation area in several curves is at the minimum difference, it means that the conversion rate of each signal is relatively consistent when converting, thereby enabling multiple different multi-source signals to be associated and converted in the same period, and avoiding the situation that some signals are converted quickly and some signals are converted slowly, thereby ensuring subsequent signal preservation and reducing the loss rate.

[0023] When the multi-source signals after format conversion are fused, they are unified based on the time stamp in the different signals, and the ratio of the data packets after fusion is verified to identify whether the capacity ratio is consistent. Based on the identification result, whether the identification ratio is abnormal is locked, and based on the specific identification result, whether the signal packet is correct is determined, and a determination signal is generated in time for relevant personnel to check, and such signals are processed in time to supplement the missing signals. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the principle framework of the application.

[0025] Figure 2 It is a schematic diagram of the construction of the standard line of the application. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the application.

[0027] Embodiment 1

[0028] Please refer to Figure 1 The application provides a gateway terminal based on multi-source signal fusion processing, which includes a signal input monitoring end, a format conversion processing end, an arrangement and fusion end, a real-time verification end, and a signal generation end.

[0029] The signal monitoring end and the format conversion processing end input node are electrically connected, the format conversion processing end and the arrangement and fusion end input node are electrically connected, the real-time verification end and the arrangement and fusion end are bidirectionally connected, and the real-time verification end and the signal generation end input node are electrically connected.

[0030] Its signal input monitoring end monitors the signal input of different multi-source ports where signals flow through the gateway terminal, and transmits the different signal input bit rates (bit rate represents the number of binary bits transmitted per unit time) of different multi-source ports to the format conversion processing end in real time;

[0031] The format conversion processing end converts the formats of different signals input from different multi-source ports. By limiting the supervision cycle, it determines the specific conversion rate of the relevant signals within this supervision cycle and determines the format to be converted in the next group of supervision cycles. The format to be converted in the first group of supervision cycles is set in advance by designated relevant personnel. The specific method for determining the format to be converted in the next group of supervision cycles is as follows:

[0032] Determine a set of supervision periods T, where T is a preset value. Its specific value is determined by the operator based on experience. The different signal input bit rates corresponding to different moments in this supervision period T are calibrated as BT i , where i represents different signals, based on different BT corresponding to different moments i Generate a signal bit rate variation curve belonging to this supervision period T;

[0033] Randomly select a group of signals as the current signal, and determine the conversion rate Vz of the current signal format to other formats from the cloud data i-t , where t represents different other formats, and its Vz i-t The signal bit rate change curve of the signal has been determined in advance in the cloud data, and based on the determined conversion rate Vz i-t (the number of binary bits converted per unit time), construct a standard line perpendicular to the vertical coordinate axis in the coordinate system where the signal bit rate change curve is located, different conversion rates Vz i-t The corresponding different standard lines have different marks, combined with Figure 2 , within the corresponding regulatory period, based on the different signal bit rates corresponding to different moments, its related change curve is determined. Therefore, the input signal is a related signal of a specified format. Such related signals can be converted into other different types of signals. The corresponding conversion rate can be extracted from the cloud database. For each different conversion rate, the relevant standard line can be selected in this coordinate system, thereby determining standard line A, standard line B, and standard line C;

[0034] Determine the different formats of different signals, and based on the determined different conversion rates, confirm the corresponding standard line in the bit rate change curve of the corresponding signal, different conversion rates Vz i-t The corresponding different standard lines are marked with different marks;

[0035] Process the standard lines with the same mark (standard lines of the same other formats): confirm the end point of the signal bit rate change curve, construct an edge line passing through the end point and perpendicular to the standard line, confirm the associated area between the signal bit rate change curve and the standard line based on this edge line, and mark the total area of ​​the associated area as M i-t , and then the total area M generated by the standard line on the different signal bit rate change curves i-t Perform variance processing and determine the standard deviation value F t , from several F t Select F tmin The format corresponding to the corresponding standard line will be used as the format to be converted in the next regulatory cycle;

[0036] Specifically, its gateway terminal has multiple interconnected different multi-source ports, so the signal formats corresponding to different multi-source ports have different conversion rates when converting. In order to make the conversion rate of each different signal in the corresponding supervision cycle as consistent as possible during signal conversion, that is, to keep the conversion of the corresponding signals relatively consistent, and not cause a certain signal to have a larger cache volume and a certain signal to have a lower cache volume, for each different supervision cycle, a standard line is determined and processed one by one to lock the format to be converted in the next group of supervision cycles, so that the signal conversion formats of different multi-source ports are relatively uniform, and a better format conversion processing effect can be achieved.

[0037] For example: different signals have different signal input bit rates at different times during the supervision cycle, so the rate change curves of different signals can be confirmed. The horizontal coordinate axis of the curve is the time line, and the vertical coordinate axis is the change rate. When the corresponding signal is format-converted to other signals, there are different standard lines. Different groups of standard lines can be determined in the corresponding coordinate system. Each identical standard line has the same mark (because each different standard line corresponds to a different format to be converted). Therefore, the best format to be converted can be selected from the multiple groups of determined standard lines, so that multiple different signals can be converted into storage management signals of the same format, which facilitates the subsequent unified fusion of multiple groups of different signals.

[0038] Example 2

[0039] In the specific implementation process, compared with the above-mentioned embodiments, this embodiment mainly focuses on abnormality identification during the signal fusion process and assesses whether the signal fusion is abnormal;

[0040] The collating and fusion end collates and fusion bundles several groups of signals that have completed format conversion within the corresponding supervision cycle. Based on the timestamps carried by each group of different signals during the input process, several groups of signals with the same timestamp are fused to generate a fused signal package and store it accordingly.

[0041] Among them, the real-time verification end carries out ratio verification analysis on the stored fusion signal package, determines the standard check interval based on the numerical characteristics generated in the corresponding supervision period, and then carries out real-time verification on each group of fusion signal packages to evaluate whether different signals in the fusion signal package are missing, wherein the specific way of evaluation is:

[0042] Based on the determined to-be-converted format in the corresponding supervision period, the standard line corresponding to the to-be-converted format is identified and marked as a format line. The numerical parameters corresponding to the format line and the corresponding signal bit rate change curve at the same time are determined, and the associated difference Gz is determined, wherein Gz is the difference between the two groups of numerical parameters, and Gz>0. Then, the associated difference Gz at the corresponding time is determined from other signal bit rate change curves. The associated differences Gz at the same time in different signal bit rate change curves are processed by ratio, and the ratio sequence is determined. Then, the minimum ratio sequence and the maximum ratio sequence are selected from the determined several ratio sequences as the standard check interval.

[0043] The numerical capacity carried by different signals in the fusion signal package is compared to determine the capacity ratio sequence. It is identified whether the capacity ratio sequence belongs to the check interval. If it belongs, the verification is normal, if it does not belong, the verification is abnormal, and secondary verification is carried out.

[0044] Based on the fusion signal package with verification anomaly, the associated time stamp of the fusion signal package is confirmed, and the signal input bit rate at the corresponding time is determined based on the associated time stamp. The input ratio sequence is determined by processing the several groups of signal input bit rates by ratio. It is identified whether the input ratio sequence is consistent with the capacity ratio sequence. If it is consistent, it means that the fusion signal package is normal, if it is not consistent, a data anomaly signal is generated through the signal generation end and directly displayed. The related fusion signal package with data anomaly signal represents that there is related data loss.

[0045] Specifically, under normal circumstances, the data corresponding to the same time stamp is generally consistent with the input data. If there is inconsistency, there is a high probability that data loss exists in the storage and conversion process, resulting in related fusion defects in the fusion processing of the corresponding signal package.

[0046] In order to better identify such defects, it is necessary to conduct relevant confirmation based on the relevant numerical characteristics of the data during the conversion process, so as to lock the relevant standard ratio sequence, and then conduct a comprehensive evaluation based on the corresponding correlation ratio to identify whether the data is abnormally correlated. Based on the identification results, the signal is comprehensively evaluated. The reason why there are large differences in the capacity values ​​of the signals is nothing more than that there are correlation differences in the corresponding signals during conversion, that is, the numerical differences between the data input process and the conversion process. Therefore, there are corresponding capacity ratio differences. Overall evaluation is given priority, and then standard evaluation is performed to achieve better evaluation results.

[0047] Example 3

[0048] This embodiment includes the entire implementation process of the above two groups of embodiments in the specific real-time process.

[0049] Some of the data in the above formulas are dimensionless and numerically calculated. Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0050] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A gateway terminal based on multi-source signal fusion processing, characterized in that: It includes signal input monitoring end, format conversion processing end, sorting and fusion end, real-time verification end and signal generation end; in: The signal input monitoring end monitors the signal input of different multi-source ports where signals flow through the gateway terminal, and transmits the different signal input bit rates of different multi-source ports to the format conversion processing end in real time; The format conversion processing end converts the formats of different signals input from different multi-source ports. By limiting the supervision cycle, it determines the specific conversion rate of the relevant signals within this supervision cycle and determines the format to be converted in the next group of supervision cycles. The format to be converted in the first group of supervision cycles is set in advance by designated relevant personnel. The specific method is as follows: Determine a set of supervision periods T, where T is a preset value, and mark the different signal input bit rates corresponding to different moments in this supervision period T as BT i , where i represents different signals, based on different BT corresponding to different moments i Generate a signal bit rate variation curve belonging to this supervision period T; Randomly select a group of signals as the current signal, and determine the conversion rate Vz of the current signal format to other formats from the cloud data i-t , where t represents different other formats, and its Vz i-t The signal bit rate change curve of the signal has been determined in advance in the cloud data, and based on the determined conversion rate Vz i-t , construct a standard line perpendicular to the vertical coordinate axis in the coordinate system where the signal bit rate change curve is located, different conversion rates Vz i-t The corresponding different standard lines are marked with different marks; Determine the different formats of different signals, and based on the determined different conversion rates, confirm the corresponding standard line in the bit rate change curve of the corresponding signal, different conversion rates Vz i-t The corresponding different standard lines are marked with different marks; The standard lines with the same mark are processed as follows: the end point of the signal bit rate change curve is confirmed, an edge line passing through the end point and perpendicular to the standard line is constructed, the associated area between the signal bit rate change curve and the standard line is confirmed based on the edge line, and the total area of ​​the associated area is marked as M i-t , and then the total area M generated by the standard line on the different signal bit rate change curves i-t Perform variance processing and determine the standard deviation value F t , from several F t Select F tmin The format corresponding to the corresponding standard line will be used as the format to be converted in the next regulatory cycle; The collating and fusion end collates and bundles several groups of signals that have completed format conversion within the corresponding supervision cycle. Based on the timestamps carried by each group of different signals during the input process, several groups of signals with the same timestamp are fused to generate a fused signal package. The real-time verification end performs ratio verification analysis on the stored fusion signal packages, determines the standard verification interval based on the numerical characteristics generated within the corresponding supervision period, and then performs real-time verification on each group of fusion signal packages to assess whether different signals in the fusion signal packages are missing.

2. The gateway terminal based on multi-source signal fusion processing according to claim 1, characterized in that: The signal input bit rate BT i is the number of binary bits transmitted per unit time, the conversion rate Vz i-t The number of binary bits converted per unit time.

3. The gateway terminal based on multi-source signal fusion processing according to claim 1, characterized in that: The specific method of determining the standard verification interval based on the numerical characteristics generated during the corresponding supervision period by the real-time verification terminal is as follows: Based on the format to be converted determined within the corresponding regulatory period, the standard line corresponding to the format to be converted is identified and calibrated as the format line. The numerical parameters corresponding to the format line and the corresponding signal bit rate change curve at the same moment are determined, and their associated difference Gz is determined, and Gz is the difference between the two sets of numerical parameters, and Gz>0. Then, the associated difference Gz at the corresponding moment is determined from other signal bit rate change curves. The associated difference Gz in different signal bit rate change curves at the same moment is ratio-processed to determine the ratio sequence. Then, from the determined several ratio sequences, the minimum ratio sequence and the maximum ratio sequence are selected as the standard verification interval.

4. The gateway terminal based on multi-source signal fusion processing according to claim 3, characterized in that: The specific method of the real-time verification end to assess whether different signals in the fused signal package are missing is as follows: Compare the numerical capacities carried by different signals in the fusion signal package to determine the capacity ratio sequence, and identify whether this capacity ratio sequence belongs to the verification interval. If so, the verification is normal; if not, the verification is abnormal and a second verification is performed; Based on the fusion signal package with verification anomalies, the associated timestamp of this fusion signal package is confirmed, and then the signal input bit rate at the corresponding moment is determined based on this associated timestamp. Several groups of signal input bit rates are ratio-processed to determine the input ratio sequence, and it is identified whether this input ratio sequence is consistent with the capacity ratio sequence. If inconsistent, a data anomaly signal is generated through the signal generation end and displayed directly. The relevant fusion signal package with data anomaly signals indicates that there is relevant data missing.

5. The gateway terminal based on multi-source signal fusion processing according to claim 4, characterized in that: If the input ratio sequence is consistent with the capacity ratio sequence, it means that there is no abnormality in the fused signal package.

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