High-Speed Accumulation Card Nonlinear Detection Device and Compensation Method

Abstract

The present invention relates to a non-linear detection device and compensation method for a high-speed accumulation card. It solves the problem of poor non-linear detection methods and the impact on detection results in the prior art. It includes a linear signal receiver, which is arranged in a signal acquisition box body. One end of the back of the signal acquisition box body is provided with a signal acquisition interface, and the other end is provided with a noise acquisition interface. The signal acquisition interface is connected with an adaptive temperature adjustment device, and the noise acquisition interface is connected with a background noise acquisition device. A signal processing mechanism is arranged in the signal acquisition box body. A background noise suppression component is arranged on one side of the signal processing mechanism. The signal processing mechanism and the background noise suppression component are arranged on a circuit board. An ADC digital conversion unit is arranged on the circuit board. The ADC digital conversion unit is connected with a digital signal output component located on the signal acquisition box body. The advantages of the present invention are: it can improve the accuracy of non-linear detection and has good detection effects.

Description

Technical Field

[0001] The present invention relates to the technical field of signal detection systems, and particularly to a high-speed accumulation card nonlinear detection device and a compensation method. Background Art

[0002] With the rapid development of the performance evaluation technology of industrial control loops, the performance evaluation and fault diagnosis of control loops have attracted much attention in the field of engineering research. In industrial process control loops, the phenomenon of decreased control performance often occurs. The reasons may be internal component failures, external disturbances, or the existence of nonlinear links in the loop, etc. The main manifestations are an increase in process variance and even oscillation phenomena.

[0003] During the process of decreasing control performance, the nonlinear phenomenon of the control loop is also relatively common. In actual production, the control processes of most control loops are essentially nonlinear. The parametric nonlinear detection method performs system identification on the process to be measured according to a linear system, obtains the residual between the predicted output and the actual output of the identification model, and judges whether the process to be measured is nonlinear by judging the residual components. This method has a relatively low requirement for the length of the measured data, but has a relatively high requirement for the identification accuracy and a large amount of computation. The non-parametric nonlinear detection method mainly judges the nonlinearity of the process based on higher-order statistics. This method only needs to obtain the output data of the process to be measured to obtain relatively reliable results and has a relatively fast operation speed. However, in order to reduce the variance generated when calculating the estimators of higher-order spectra, this method is very dependent on the length of the measured signal and has a relatively high requirement for the length of the measured data. When the amount of data is small, the accuracy of detection will be greatly affected. In addition, since most of these methods use the method of threshold comparison for nonlinear discrimination, the accuracy of these methods for detecting weak nonlinearity is also relatively low; in addition, during the process of nonlinear detection, the signal is smaller than the noise, the signal bandwidth is large and overlaps with the noise, but a relatively high signal-to-noise ratio is required. Usually, the response of the signal within a period of time is collected by a high-speed ADC and the same-phase accumulation is repeated after collection to reduce the noise. However, high-speed ADCs usually have differential nonlinearity, which is difficult to predict and cannot be corrected by a general algorithm. The detection method is not good, and the inconsistency of the signal acquisition environment is likely to cause errors in the collected data, and finally the DNL changes, affecting the detection effect.

[0004] In order to solve the deficiencies existing in the prior art, people have carried out long-term explorations and proposed various solutions. For example, a Chinese patent document discloses an industrial process nonlinear detection method based on the surrogate data method [CN201810015042.0], which includes pre-collecting a set of process output signals of a control loop in the industrial process to be detected; obtaining the inverse bispectrum function of the output signal of the loop to be detected; constructing multiple sets of surrogate data of the original signal according to the LMD-RP surrogate data method, and calculating the inverse bispectrum function of each set of surrogate data by imitating the original signal; respectively calculating the nonlinear statistical indexes of the original signal and the surrogate data, and comprehensively determining whether there is nonlinearity in the control loop to be detected within the framework of hypothesis testing.

[0005] The above solution solves to a certain extent the problem of low accuracy of signal nonlinear detection in the prior art. However, this solution still has many deficiencies. For example, high-speed ADCs usually have differential nonlinearity, which is difficult to predict and cannot be corrected by a general algorithm. The detection method is complex, and the inconsistency of the signal acquisition environment easily causes errors in the collected data. Eventually, the DNL changes, affecting the detection effect. Summary of the Invention

[0006] The object of the present invention is to provide a high-speed accumulation card nonlinear detection device with reasonable design and good detection effect for the above problems.

[0007] The object of the present invention is to provide a high-speed accumulation card nonlinear detection method with reasonable design and easy use for the above problems.

[0008] To achieve the above object, the present invention adopts the following technical solutions: This high-speed accumulation card non-linear detection device includes a linear signal receiver. The signal receiver is arranged inside the signal acquisition box body. One end of the back of the signal acquisition box body is provided with a signal acquisition interface connected to the linear signal receiver, and the other end is provided with a noise acquisition interface. The signal acquisition interface is connected to an adaptive temperature adjustment device located inside the signal acquisition box body, and the noise acquisition interface is connected to a background noise acquisition device. Inside the signal acquisition box body, there is a signal processing mechanism electrically connected to the signal acquisition interface, and a background noise suppression component connected to the noise acquisition interface is arranged on one side of the signal processing mechanism. The signal processing mechanism and the background noise suppression component are arranged on a circuit board, and an ADC digital conversion unit is arranged on the circuit board. The ADC digital conversion unit is respectively connected to the signal processing mechanism and the background noise suppression component, and the ADC digital conversion unit is connected to a digital signal output component located on the signal acquisition box body. By setting an adaptive temperature adjustment device at the signal acquisition interface on the signal acquisition box body, it is ensured that the acquisition environment has the same temperature as the external environment, reducing data acquisition errors. And the background noise is collected by the background noise acquisition device, the collected data signal is processed by the signal processing mechanism, and the collected background noise is processed by the background noise suppression component. The processed background noise and the data signal are subjected to high-speed accumulation conversion into digital signals through the ADC digital conversion unit, and at the same time, the signal is output through the digital signal output component, so as to judge the difference between the collected signal and the model prediction signal, facilitating the effective judgment of the error of non-linear detection and reducing the DNL error value.

[0009] In the above high-speed accumulation card non-linear detection device, the signal processing mechanism includes a signal receiving unit. The signal receiving unit is connected to a signal detection unit, and the signal detection unit is connected to a filtering and clearing unit through a signal threshold adjuster. And the signal passing through the filtering and clearing unit is delayed and restored using a signal clock and stored in a signal memory. The signal memory is connected to a signal processing component. The signal threshold adjuster can divide the signal and adjust the frequency bandwidth, retaining the effective signal, and the filtering and clearing unit can effectively filter the frequency points of a specific frequency or the frequencies outside that frequency point to obtain a power signal of a specific frequency, improving the accuracy of signal acquisition.

[0010] In the above high-speed accumulation card non-linear detection device, the signal processing component includes a signal wave frequency display screen arranged on the signal acquisition box body. A signal modulation and demodulation button is arranged below the signal wave frequency display screen, and several signal operation buttons are arranged on one side of the signal modulation and demodulation button. The signal operation buttons include a signal playback button, a signal deletion button, a signal intercept button, and a signal transmission button. A signal wave frequency speaker electrically connected to the signal processing component is arranged on one side of the signal acquisition box body. The setting of the signal processing component can perform manual operations on the collected and filtered signals to meet personalized needs.

[0011] In the above-mentioned high-speed accumulation card non-linear detection device, the background noise suppression component includes a background noise suppression unit. After the background noise is suppressed by the background noise suppression unit, it is filtered and interpolated by the filter interpolation unit. The filter interpolation unit is connected to a background noise mixing module, and the background noise mixing module is connected to a noise feedback unit. The noise feedback unit is connected to the above-mentioned ADC digital conversion unit. The filter interpolation unit can perform frequency compensation on the noise suppressed by the background noise suppression unit to avoid noise tomography.

[0012] In the above-mentioned high-speed accumulation card non-linear detection device, the adaptive temperature regulation device includes a temperature change box body. On one side of the temperature change box body, there is a refrigeration module, and on the other side, there is a heating module. One side of the refrigeration module is interconnected with the inner cavity of the temperature change box body through a cold air pipe, and the heating module is interconnected with the inner cavity of the temperature change box body through a warm air pipe. The temperature change box body is clamped on the signal acquisition interface, and a passage is formed between the signal acquisition interface and the inner cavity of the temperature change box body; the signal acquisition interface is connected to a linear signal receiver through a signal transmission line body. The circumferential inner side of the signal transmission line body has a heat preservation inner layer, and the circumferential outer side has a heat insulation outer layer. There is a wire passing hole on the upper back of the temperature change box body, and a sealing ring is provided around the wire passing hole. An internal temperature sensing module is provided on the inner wall of the temperature change box body, and an ambient temperature sensing module is provided on the outer wall of the temperature change box body on the side of the signal acquisition interface. The ambient temperature sensing module and the internal temperature sensing module are connected to a control module arranged on the circuit board, and the control module is respectively connected to the refrigeration module and the heating module. The setting of the adaptive temperature regulation device makes the acquisition temperature and the ambient temperature consistent, ensuring the accuracy of signal acquisition.

[0013] In the above-mentioned high-speed accumulation card non-linear detection device, the background noise acquisition device includes a noise acquisition line connected to the noise acquisition interface. The noise acquisition line is connected to a noise acquisition device, and a noise acquisition cover is sleeved around the circumference of the noise acquisition device. The noise acquisition device is arranged on a movable connecting rod, and a sliding base is provided at the bottom of the movable connecting rod. The movable connecting rod is rotationally connected to the sliding base through a multi-directional rotating sphere, and the middle part of the movable connecting rod has a bent structure. The noise acquisition device is detachably connected to the movable connecting rod.

[0014] In the above-mentioned high-speed accumulation card non-linear detection device, the digital signal output component includes an audio output interface. On one side of the audio output interface, there is an analog signal output interface, and on the other side, there is a graphic signal output screen. A photoelectric output port is provided below the graphic signal output screen, and a signal output adjustment panel is provided on one side of the photoelectric output port. A number of digital signal adjustment knobs are provided on the signal output adjustment panel. The setting of the digital signal output component can perform diversified output on the noise and signals after ADC high-speed superposition, providing more judgment methods.

[0015] Based on the above-mentioned high-speed accumulation card non-linear detection device, a high-speed accumulation card non-linear detection compensation method is provided. This method includes the following steps:

[0016] S1. Collect external signals through a signal acquisition interface, and use a signal processing mechanism to correct and process the external signals and convert them into analog signals.

[0017] S2. Collect background noise through a background noise acquisition device, and perform background noise processing through a background noise suppression component.

[0018] S3. Use an ADC digital conversion unit to convert the analog signal into a digital signal, and use the background noise to perform data compensation and correction on the digital signal.

[0019] S4. Use a digital signal output component to digitally output the corrected digital signal.

[0020] In the above-mentioned high-speed accumulation card non-linear detection compensation method, in step S3, the data compensation of the digital signal first collects the DNL data of the ADC digital conversion unit through a high-stability linear signal generator, and then performs data compensation in combination with the processed background noise, and uses the compensated data to correct the DNL error of the collected accumulation result. After the corrected signal data is output, it is compared with the predicted signal pre-established by the model to judge the error value of the non-linear detection.

[0021] In the above-mentioned high-speed accumulation card non-linear detection compensation method, in step S1, when collecting external signals, the temperature at the signal acquisition interface is automatically adjusted to be the same as the external environment temperature through an adaptive temperature adjustment device, avoiding the influence of the temperature difference between the signal acquisition environment and the signal acquisition interface on the stability of signal collection, and a signal collection module is connected to the signal acquisition port. The signals collected by the signal collection module are temperature signals, sound source signals, and optical signals.

[0022] Compared with the existing technology, the advantages of the present invention are as follows: reasonable design, simple operation, not only reducing the introduced error of DNL, but also having better accuracy in signal collection. Through the processing of the collected signals and noise processing, digital signal conversion is performed, and high-speed accumulation and data compensation are carried out, improving the accuracy of the digital signal output, improving the accuracy of the non-linear detection result of the digital signal after high-speed accumulation of the ADC, reducing the DNL error, having good use effects, and the detection method is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the step flow chart of the present invention;

[0024] Figure 2 is the working flow chart of the signal processing mechanism in the present invention;

[0025] Figure 3 It is the flowchart of the background noise suppression component in the present invention;

[0026] Figure 4 It is the schematic diagram of the internal structure of the signal acquisition box in the present invention;

[0027] Figure 5 It is the schematic diagram of the overall structure of the signal acquisition box in the present invention;

[0028] Figure 6 It is the schematic diagram of the structure of the background noise acquisition device in the present invention.

[0029] In the figure, there are signal acquisition box 1, signal acquisition interface 11, noise acquisition interface 12, linear signal receiver 2, signal transmission line body 21, heat preservation inner layer 211, heat insulation outer layer 212, adaptive temperature regulation device 3, temperature change box 31, wire passing hole 311, sealing ring 312, internal temperature sensing module 313, ambient temperature sensing module 314, refrigeration module 32, cold air pipe 321, heating module 33, hot air pipe 331, background noise acquisition device 4, noise acquisition line 41, noise collector 42, noise acquisition cover 43, movable connecting rod 44, sliding base 45, multi-directional rotating sphere 46, bending structure 47, signal processing mechanism 5, signal receiving unit 51, signal detection unit 52, signal threshold adjuster 53, filtering and clearing unit 54, signal clock 55, signal memory 56, background noise suppression component 6, background noise suppression unit 61, wave interpolation unit 62, noise feedback unit 63, circuit board 7, ADC digital conversion unit 71, control module 72, digital signal output component 8, audio output interface 81, analog signal output interface 82, graphic signal output screen 83, optoelectronic output port 84, signal output adjustment panel 85, digital signal adjustment knob 86, signal processing component 9, signal wave frequency display screen 91, signal modulation and demodulation button 92, signal operation button 93, signal playback button 94, signal deletion button 95, signal intercept button 96, signal transmission button 97. Specific embodiments

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] As Figure 1-6As shown in the figure, this non-linear detection device for high-speed accumulation cards includes a linear signal receiver 2. The signal receiver is arranged inside the signal acquisition box 1. One end of the back of the signal acquisition box 1 is provided with a signal acquisition interface 11 connected to the linear signal receiver 2, and the other end is provided with a noise acquisition interface 12. The signal acquisition interface 11 is connected to an adaptive temperature adjustment device 3 located inside the signal acquisition box 1, and the noise acquisition interface 12 is connected to a background noise acquisition device 4. Inside the signal acquisition box 1, there is a signal processing mechanism 5 electrically connected to the signal acquisition interface 11. On one side of the signal processing mechanism 5, there is a background noise suppression component 6 connected to the noise acquisition interface 12. The signal processing mechanism 5 and the background noise suppression component 6 are arranged on a circuit board 7, and an ADC digital conversion unit 71 is provided on the circuit board 7. The ADC digital conversion unit 71 is respectively connected to the signal processing mechanism 5 and the background noise suppression component 6, and the ADC digital conversion unit 71 is connected to a digital signal output component 8 located on the signal acquisition box 1. This device collects external signals in a dual-channel manner, that is, it collects signals through the signal acquisition interface 11 and collects noise through the noise acquisition interface 12. The collected signals are received by the linear signal receiver 2 and processed by the signal processing mechanism 5. The collected noise is processed by the background noise suppression component 6. The processed noise and the processed signals are subjected to high-speed accumulation and digital signal conversion through the ADC digital conversion unit 71. The converted digital signals are compared with the predicted signals pre-established by the model, so as to judge the error of non-linear detection and improve the accuracy of non-linear detection.

[0032] Among them, the signal processing mechanism 5 includes a signal receiving unit 51. The signal receiving unit 51 is connected to a signal detection unit 52, and the signal detection unit 52 is connected to a filtering and clearing unit 54 through a signal threshold adjuster 53. The signal passing through the filtering and clearing unit 54 is delayed and restored using a signal clock 55 and stored in a signal memory 56. The signal memory 56 is connected to a signal processing component 9. The signal threshold adjuster 53 can adjust the frequency bandwidth of the signal and retain the effective signal, and the filtering and clearing unit 54 is used to effectively filter the frequency points of a specific frequency or the frequencies outside this frequency point to obtain a power signal of a specific frequency, improving the accuracy of signal acquisition.

[0033] Visibly, the signal processing component 9 includes a signal frequency display screen 91 provided on the signal acquisition box 1. A signal modulation and demodulation button 92 is provided below the signal frequency display screen 91, and several signal operation buttons 93 are provided on one side of the signal modulation and demodulation button 92. The signal operation buttons 93 include a signal playback button 94, a signal deletion button 95, a signal capture button 96, and a signal transmission button 97. A signal frequency speaker 98 electrically connected to the signal processing component 9 is provided on one side of the signal acquisition box 1. The signal processing component 9 is used to operate and judge the signals stored in the signal memory 56, and set more precise signals to be delivered to the ADC digital conversion unit 71.

[0034] Apparently, the background noise suppression component 6 includes a background noise suppression unit 61. After the background noise is suppressed by the background noise suppression unit 61, it is filtered and interpolated by the filter interpolation unit 62. The filter interpolation unit 62 is connected to a background noise mixing module, the background noise mixing module is connected to a noise feedback unit 63, and the noise feedback unit 63 is connected to the above-mentioned ADC digital conversion unit 71. The background noise suppression unit 61 is used to lower the background noise frequency and retain the effective noise, and the filter interpolation unit 62 is used to supplement the frequency and frequency points of the effective noise to prevent noise discontinuity. The noise feedback unit adjusts the processed noise and delivers it to the ADC digital conversion unit 71.

[0035] Furthermore, the adaptive temperature regulation device 3 includes a temperature change box 31. A refrigeration module 32 is provided on one side of the temperature change box 31, and a heating module 33 is provided on the other side. One side of the refrigeration module 32 is interconnected with the inner cavity of the temperature change box 31 through a cold air pipe 321, and the heating module 33 is interconnected with the inner cavity of the temperature change box 31 through a warm air pipe 331. The temperature change box 31 is clamped on the signal acquisition interface 11, and a passage is formed between the signal acquisition interface 11 and the inner cavity of the temperature change box 31; the signal acquisition interface 11 is connected to the linear signal receiver 2 through a signal transmission line 21. The circumferential inner side of the signal transmission line 21 has a heat preservation inner layer 211 and the circumferential outer side has a heat insulation outer layer 212. A wire passing hole 311 is provided on the upper back of the temperature change box 31, and a sealing ring 312 is provided around the wire passing hole 311. An internal temperature sensing module 313 is provided on the inner wall of the temperature change box 31, and an ambient temperature sensing module 314 is provided on the outer wall of the temperature change box 31 and on one side of the signal acquisition interface 11. The ambient temperature sensing module 314 and the internal temperature sensing module 313 are connected to a control module 72 provided on the circuit board 7, and the control module 72 is respectively connected to the refrigeration module 32 and the heating module 33. When the external environmental temperature is inconsistent with the temperature inside the temperature change box 31, the refrigeration module 32 or the heating module 33 is started according to the actual situation. When the temperature sensed by the ambient temperature sensing module 314 is the same as the temperature sensed by the internal temperature sensing module 313, the refrigeration module 32 or the heating module 33 stops working.

[0036] Specifically, the background noise acquisition device 4 includes a noise acquisition line 41 connected to the noise acquisition interface 12. The noise acquisition line 41 is connected to a noise collector 42, and a noise acquisition cover 43 is circumferentially sleeved on the noise collector 42. The noise collector 42 is arranged on a movable connecting rod 44, and a sliding base 45 is provided at the bottom of the movable connecting rod 44. The movable connecting rod 44 is rotationally connected to the sliding base 45 through a multi-directional rotating sphere 46, and a bending structure 47 is provided in the middle of the movable connecting rod 44. The noise collector 42 is detachably connected to the movable connecting rod 44. The position of the background noise acquisition device 4 can be moved arbitrarily, improving the flexibility of use.

[0037] In detail, the digital signal output component 8 includes an audio output interface 81. On one side of the audio output interface 81, an analog signal output interface 82 is provided. On the other side, a graphic signal output screen 83 is provided. A photoelectric output port 84 is provided below the graphic signal output screen 83, and a signal output adjustment panel 85 is provided on one side of the photoelectric output port 84. A number of digital signal adjustment knobs 86 are provided on the signal output adjustment panel 85. The setting of the digital signal output component 8 is used for diversified output of the digital signal after cumulative compensation.

[0038] A non-linear detection compensation method for a high-speed accumulation card, the method comprising the following steps:

[0039] S1. Collect external signals through the signal acquisition interface 11, and use the signal processing mechanism 5 to correct and process the external signals and convert them into analog signals;

[0040] S2. Collect background noise through the background noise acquisition device 4, and perform background noise processing through the background noise suppression component 6;

[0041] S3. Use the ADC digital conversion unit 71 to convert the analog signal into a digital signal and use the background noise to perform data compensation and correction on the digital signal;

[0042] S4. Use the digital signal output component 8 to perform digital output on the corrected digital signal.

[0043] In step S3, for the data compensation of the digital signal, first collect the DNL data of the ADC digital conversion unit 71 through the high-stability linear signal generator 73, then perform data compensation in combination with the processed background noise, and use the compensated data to correct the DNL error of the collected accumulation result.

[0044] In step S1, when collecting external signals, the adaptive temperature adjustment device 3 automatically adjusts the temperature at the signal acquisition interface 11 to be consistent with the external environment temperature, avoiding the influence of the temperature difference between the signal acquisition environment and the signal acquisition interface 11 on the stability of signal collection, and a signal collection module is connected to the signal acquisition port.

[0045] In summary, the principle of this embodiment is as follows: By means of the adaptive temperature adjustment device 3, the difference between the collected temperature and the ambient temperature is automatically adjusted to improve the accuracy of signal collection. At the same time, the collected signal is processed by the signal processing mechanism 5 to extract the effective signal, and the background noise collection device 4 is used to collect the background noise and the effective noise is extracted through the background noise suppression component 6. The ADC digital conversion unit 71 performs digital signal conversion on the effective noise and the effective signal, and uses the effective noise to compensate and correct the converted digital signal, thereby improving the accuracy of non-linear detection.

[0046] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0047] Although terms such as signal collection box body 1, signal collection interface 11, noise collection interface 12, linear signal receiver 2, signal transmission line body 21, heat preservation inner layer 211, heat insulation outer layer 212, adaptive temperature adjustment device 3, temperature change box body 31, wire passing hole 311, sealing ring 312, internal temperature sensing module 313, ambient temperature sensing module 314, refrigeration module 32, cold air pipe 321, heating module 33, heating pipe 331, background noise collection device 4, noise collection wire 41, noise collector 42, noise collection cover 43, movable connecting rod 44, sliding base 45, multi-directional rotating sphere 46, bending structure 47, signal processing mechanism 5, signal receiving unit 51, signal detection unit 52, signal threshold adjuster 53, filtering and clearing unit 54, signal clock 55, signal memory 56, background noise suppression component 6, background noise suppression unit 61, wave interpolation unit 62, noise feedback unit 63, circuit board 7, ADC digital conversion unit 71, control module 72, digital signal output component 8, audio output interface 81, analog signal output interface 82, graphic signal output screen 83, optoelectronic output port 84, signal output adjustment panel 85, digital signal adjustment knob 86, signal processing component 9, signal wave frequency display screen 91, signal modulation and demodulation button 92, signal operation button 93, signal playback button 94, signal deletion button 95, signal intercept button 96, signal transmission button 97 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A non - linear detection device for a high - speed accumulation card, comprising a linear signal receiver (2). The signal receiver is arranged in a signal acquisition box body (1). One end of the back of the signal acquisition box body (1) is provided with a signal acquisition interface (11) connected to the linear signal receiver (2), and the other end is provided with a noise acquisition interface (12). It is characterized in that, The signal acquisition interface (11) is connected to an adaptive temperature adjustment device (3) located in the signal acquisition box (1); the noise acquisition interface (12) is connected to a background noise acquisition device (4); a signal processing mechanism (5) electrically connected to the signal acquisition interface (11) is provided in the signal acquisition box (1); a background noise suppression component (6) connected to the noise acquisition interface (12) is provided on one side of the signal processing mechanism (5); the signal processing mechanism (5) and the background noise suppression component (6) are arranged on a circuit board (7); an ADC digital conversion unit (71) is provided on the circuit board (7); the ADC digital conversion unit (71) is connected to the signal processing mechanism (5) and the background noise suppression component (6) respectively; and the ADC digital conversion unit (71) is connected to a digital signal output component (8) located on the signal acquisition box (1); the signal The processing mechanism (5) comprises a signal receiving unit (51), the signal receiving unit (51) is connected to a signal detection unit (52), and the signal detection unit (52) is connected to a filter clearing unit (54) via a signal threshold modulator (53), and the signal passing through the filter clearing unit (54) is delayed and restored using a signal clock (55) and stored in a signal memory (56), and the signal memory (56) is connected to a signal processing component (9); the background noise suppression component (6) comprises a background noise suppression unit (61), the background noise is suppressed by the background noise suppression unit (61) and then filtered and interpolated by a filter interpolation unit (62), and the filter interpolation unit (62) is connected to a background noise mixing module, and the background noise mixing module is connected to a noise feedback unit (63), and the noise feedback unit (63) is connected to the above-mentioned ADC digital conversion unit (71).

2. The non - linear detection device for a high - speed accumulation card according to claim 1, characterized in that, The signal processing component (9) comprises a signal frequency display screen (91) arranged on a signal acquisition box (1); a signal modulation and adjustment button (92) is arranged on the lower side of the signal frequency display screen (91); and a plurality of signal operation buttons (93) are arranged on one side of the signal modulation and adjustment button (92); the signal operation buttons (93) comprise a signal playback button (94), a signal deletion button (95), a signal interception button (96) and a signal transmission button (97); and a signal frequency speaker (98) electrically connected to the signal processing component (9) is arranged on one side of the signal acquisition box (1).

3. The non - linear detection device for a high - speed accumulation card according to claim 1, characterized in that, The described adaptive temperature regulation device (3) includes a temperature change box body (31). On one side of the temperature change box body (31), there is a refrigeration module (32), and on the other side, there is a heating module (33). One side of the refrigeration module (32) is interconnected with the inner cavity of the temperature change box body (31) through a cold air pipe (321), and the heating module (33) is interconnected with the inner cavity of the temperature change box body (31) through a warm air pipe (331). The temperature change box body (31) is snap-connected to the signal acquisition interface (11), and a passage is formed between the signal acquisition interface (11) and the inner cavity of the temperature change box body (31); the signal acquisition interface (11) is connected to the linear signal receiver (2) through a signal transmission line body (21). The circumferential inner side of the signal transmission line body (21) has a heat preservation inner layer (211), and the circumferential outer side has a heat insulation outer layer (212). On the upper back of the temperature change box body (31), there is a wire passing hole (311), and a sealing ring (312) is provided circumferentially around the wire passing hole (311). The inner wall of the temperature change box body (31) is provided with an internal temperature sensing module (313), and on the outer wall of the temperature change box body (31) and on one side of the signal acquisition interface (11), there is an ambient temperature sensing module (314). The ambient temperature sensing module (314) and the internal temperature sensing module (313) are connected to a control module (72) arranged on a circuit board (7), and the control module (72) is respectively connected to the refrigeration module (32) and the heating module (33).

4. The non - linear detection device for a high - speed accumulation card according to claim 3, characterized in that, The described background noise acquisition device (4) includes a noise acquisition line (41) connected to a noise acquisition interface (12). The noise acquisition line (41) is connected to a noise collector (42), and a noise acquisition cover (43) is circumferentially sleeved on the noise collector (42). The noise collector (42) is arranged on a movable connecting rod (44), and a sliding base (45) is provided at the bottom of the movable connecting rod (44). The movable connecting rod (44) is rotationally connected to the sliding base (45) through a multi-directional rotating sphere (46), and the middle part of the movable connecting rod (44) has a bending structure (47). The noise collector (42) is detachably connected to the movable connecting rod (44).

5. The non - linear detection device for a high - speed accumulation card according to claim 4, characterized in that, The described digital signal output component (8) includes an audio output interface (81). On one side of the audio output interface (81), there is an analog signal output interface (82), and on the other side, there is a graphic signal output screen (83). Below the graphic signal output screen (83), there is an optoelectronic output port (84), and on one side of the optoelectronic output port (84), there is a signal output adjustment panel (85). On the signal output adjustment panel (85), there are several digital signal adjustment knobs (86).

6. A non - linear detection and compensation method for a high - speed accumulation card of the non - linear detection device for a high - speed accumulation card according to any one of claims 1 - 5, characterized in that, This method includes the following steps: S1. Collect external signals through the signal acquisition interface (11), and use the signal processing mechanism (5) to correct and process the external signals and convert them into analog signals; S2. Collect background noise through the background noise acquisition device (4), and perform background noise processing through the background noise suppression component (6); S3. Use the ADC digital conversion unit (71) to convert the analog signal into a digital signal, and use the background noise to perform data compensation and correction on the digital signal; S4. Use the digital signal output component (8) to perform digital output on the corrected digital signal.

7. The non - linear detection and compensation method for a high - speed accumulation card according to claim 6, characterized in that, In step S3, for the data compensation of the digital signal, first collect the DNL data of the ADC digital conversion unit (71) through the high-stability linear signal generator (73), then perform data compensation in combination with the processed background noise, and use the compensated data to correct the DNL error of the collected and accumulated result.

8. The non - linear detection and compensation method for a high - speed accumulation card according to claim 7, characterized in that, In step S1, when collecting the external signal, the adaptive temperature adjustment device (3) automatically adjusts the temperature at the signal acquisition interface (11) to be consistent with the external ambient temperature, avoiding the influence of the temperature difference between the signal acquisition environment and the signal acquisition interface (11) on the stability of signal collection, and the signal acquisition port is connected to a signal collection module.

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