A UVC Detector Stability Compensation Method and System

Abstract

The present invention provides a method and system for compensating the stability of a UVC detector. The compensation system includes a UVC detector, a signal processing module, and a compensation module. The UVC detector is electrically connected to the signal processing module, and the signal processing module is electrically connected to the compensation module. The UVC detector is used to send a detection signal to the signal processing module. The signal processing module is used to preliminarily process the signal output by the UVC detector to obtain a stable value of the absolute value of the signal power when the UVC detector is in stable output. The compensation module is used to divide the signal output of the UVC detector according to the node of the obtained stable value of the absolute value of the signal power. The present invention can compensate the signal in the signal fluctuation section of the UVC detector to solve the problem of unstable signal output of the existing UVC detector.

Description

Technical Field

[0001] The present invention relates to the technical field of signal compensation, and particularly to a method and system for compensating the stability of a UVC detector. Background Art

[0002] With the wide application of UVC detectors, the requirements for the real-time performance and stability of the output signals of UVC detectors are also constantly increasing. Due to the capacitive effect, the output signal of a UVC detector is a process that rises with time and tends to be stable. To obtain a stable UVC detector signal, the traditional method is to add a capacitor to the ground at the signal output of the UVC detector. However, this method can only ensure the stability of the UVC detector output signal in the "tending to be stable" state, and cannot solve the stability of the UVC detector output signal in the "rising" state. Moreover, adding a capacitor to the ground at the signal output of the UVC detector will lengthen the time of the "rising" process of the UVC detector output signal. For applications that hope the UVC detector output signal can reach the "tending to be stable" state as soon as possible, this method is obviously not applicable. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a method and system for compensating the stability of a UVC detector, which can compensate the signal in the signal fluctuation section of the UVC detector to solve the problem of unstable signal output of the existing UVC detector.

[0004] To achieve the above purpose, the present invention is realized by the following technical solutions: a UVC detector stability compensation system, the compensation system includes a UVC detector, a signal processing module, and a compensation module. The UVC detector is electrically connected to the signal processing module, and the signal processing module is electrically connected to the compensation module. The UVC detector is used to send a detection signal to the signal processing module;

[0005] The signal processing module is used to preliminarily process the signal output by the UVC detector to obtain a stable value of the absolute value of the signal power when the UVC detector is in stable output;

[0006] The compensation module is used to divide the signal output of the UVC detector according to the node of the obtained stable value of the absolute value of the signal power, then obtain the signal compensation value required when the UVC detector is in the signal fluctuation section, and then compensate the signal of the UVC detector in the signal fluctuation section according to the signal compensation value.

[0007] Further, the signal processing module is configured with a signal processing strategy, and the signal processing strategy includes: corresponding the absolute value of the signal power output by the UVC detector with the unit detection time in sequence, and substituting the absolute values of the signal power for several consecutive unit detection times into the signal fluctuation formula at every interval of the first time period to obtain the signal fluctuation value;

[0008] The signal fluctuation value represents the change of the signal within consecutive unit detection times. The larger the signal fluctuation value is, the greater the fluctuation of the signal is;

[0009] When the detected signal fluctuation value is less than or equal to the first fluctuation threshold, obtain the average value of the absolute values of the signal power for several consecutive unit detection times within this first time period, and use this average value as the stable value of the absolute value of the signal power output by the UVC detector.

[0010] Further, the signal fluctuation formula is configured as:

[0011] wherein, Pxb is the signal fluctuation value, dbm1 to dbm a are respectively the absolute values of the signal power for several consecutive unit detection times within the first time period, and a is the number of several consecutive unit detection times within the first time period.

[0012] Further, the compensation module is configured with a compensation calculation strategy, and the compensation calculation strategy includes: obtaining the starting point of the first time period when the signal fluctuation value is less than or equal to the first fluctuation threshold, setting the starting point of this first time period as the end point of the signal fluctuation section and the starting point of the signal stable section, and using the startup time of the UVC detector as the starting point of the signal fluctuation section;

[0013] Taking the unit detection time as the detection node, respectively obtain the absolute value of the signal power of the detection nodes within the signal fluctuation section, and substitute the absolute value of this signal power into the signal compensation formula to obtain the signal compensation value of this detection node.

[0014] Further, the compensation module is also configured with a compensation strategy, and the compensation strategy includes: every time the UVC detector is started, add the absolute value of the output signal power to the signal compensation value of each detection node in its corresponding signal fluctuation section to obtain the reference signal value, and use the reference signal value as the normal signal value after compensation.

[0015] Further, the signal compensation formula is configured as: Bdbm = dbm w - dbm b ; wherein, Bdbm is the signal compensation value, dbm w is the stable value of the absolute value of the signal power output by the UVC detector, and dbm b is the absolute value of the signal power of the detection node within the signal fluctuation section.

[0016] Further, the signal processing strategy further includes: conducting several detection experiments on the UVC detector, obtaining data after the UVC detector is started several times, calculating the average value of the stable values of the absolute signal power output by the UVC detector obtained several times, and taking this average value as the final stable value of the absolute signal power output by the UVC detector;

[0017] The compensation calculation strategy further includes: analyzing the data obtained after the UVC detector is started several times, and obtaining the starting point of the first time period when the signal fluctuation values are less than or equal to the first fluctuation threshold several times. Taking the last time node among them as the end point of the signal fluctuation section and the starting point of the signal stable section, and taking the start time of the UVC detector as the starting point of the signal fluctuation section;

[0018] Calculating the average value of the absolute signal power values of each detection node in the signal fluctuation section obtained several times, taking this average value as the final absolute signal power value of this detection node, and then subtracting the final absolute signal power value of each detection node in the signal fluctuation section from the final stable value of the absolute signal power to obtain the final signal compensation value of each detection node.

[0019] The compensation strategy further includes: each time the UVC detector is started, adding the absolute signal power value output to the final signal compensation value of each detection node in its corresponding signal fluctuation section to obtain the final reference signal value, and taking the final reference signal value as the final normal signal value after compensation.

[0020] A compensation method for a stability compensation system of a VC detector, the compensation method includes the following steps:

[0021] Step S1, first preliminarily process the signal output by the UVC detector to obtain the stable value of the absolute signal power when the UVC detector is in stable output;

[0022] Step S2, divide the signal output of the UVC detector according to the node of the obtained stable value of the absolute signal power, and then obtain the signal compensation value required when the UVC detector is in the signal fluctuation section;

[0023] Step S3, compensate the signal of the UVC detector in the signal fluctuation section according to the signal compensation value.

[0024] Advantages of the present invention: Through the signal processing module, the present invention can preliminarily process the signal output by the UVC detector to obtain the stable value of the absolute value of the signal power when the UVC detector is in stable output. Then, the compensation module is used to divide the signal output of the UVC detector according to the node of the obtained stable value of the absolute value of the signal power, and then obtain the signal compensation value required when the UVC detector is in the signal fluctuation section. Then, according to the signal compensation value, the signal in the signal fluctuation section of the UVC detector is compensated. This method can compensate the signal in the signal fluctuation section of the UVC detector and improve the stability of the signal output of the UVC detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features, objects, and advantages of the present invention will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings:

[0026] Figure 1 is a flowchart of the compensation method of the present invention;

[0027] Figure 2 is a schematic block diagram of the compensation system of the present invention;

[0028] Figure 3 is a curve diagram of the output of the UVC detector before signal compensation of the present invention;

[0029] Figure 4 is a curve diagram of the signal compensation value of the UVC detector of the present invention;

[0030] Figure 5 is a curve diagram of the output of the UVC detector after signal compensation of the present invention for this valve stem. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] To make the technical means, creative features, achieved purposes, and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0032] Example 1, please refer to Figure 2 , the present invention provides a UVC detector stability compensation system. The compensation system includes a UVC detector, a signal processing module, and a compensation module. The UVC detector is electrically connected to the signal processing module, and the signal processing module is electrically connected to the compensation module; the UVC detector is used to send a detection signal to the signal processing module.

[0033] The signal processing module is used to process the signal sent by the UVC detector. Among them, the signal processing module is configured with a signal processing strategy. Please refer to Figure 3, the signal processing strategy includes: corresponding the absolute value of the signal power output by the UVC detector with the unit detection time in sequence, and substituting the absolute values of the signal power for several consecutive unit detection times into the signal fluctuation formula at intervals of the first time period to obtain the signal fluctuation value. The signal fluctuation formula is configured as:

[0034] where Pxb is the signal fluctuation value, dbm1 to dbm a are respectively the absolute values of the signal power for several consecutive unit detection times within the first time period, a is the number of several consecutive unit detection times within the first time period. By processing the fluctuation situation of the absolute values of the signal power for several consecutive unit detection times within the first time period, it is possible to obtain in which first time period the signal detected by the UVC detector tends to be stable, thereby obtaining the signal fluctuation section and the signal stable section of the UVC detector.

[0035] The signal fluctuation value represents the change situation of the signal within consecutive unit detection times. The larger the signal fluctuation value, the greater the fluctuation of the signal;

[0036] When the detected signal fluctuation value is less than or equal to the first fluctuation threshold, obtain the average value of the absolute values of the signal power for several consecutive unit detection times within this first time period, and use this average value as the stable value of the absolute value of the signal power output by the UVC detector.

[0037] The compensation module is configured with a compensation calculation strategy. Please refer to Figure 4 , the compensation calculation strategy includes: obtaining the starting point of the first time period when the signal fluctuation value is less than or equal to the first fluctuation threshold, setting the starting point of this first time period as the end point of the signal fluctuation section and the starting point of the signal stable section, and using the startup time of the UVC detector as the starting point of the signal fluctuation section.

[0038] Taking the unit detection time as the detection node, respectively obtain the absolute value of the signal power of the detection node within the signal fluctuation section, and substitute this absolute signal power value into the signal compensation formula to obtain the signal compensation value of this detection node. The signal compensation formula is configured as: Bdbm = dbm w -dbm b ; where Bdbm is the signal compensation value, dbm w is the stable value of the absolute value of the signal power output by the UVC detector, dbm b is the absolute value of the signal power of the detection node within the signal fluctuation section. By calculating the difference between the absolute value of the signal power output by the UVC detector within the signal stable section and the absolute value of the signal power output within the signal fluctuation section, the difference that needs to be supplemented for the absolute value of the signal power in the signal fluctuation section can be obtained.

[0039] Please refer to Figure 5, the compensation module is further configured with a compensation strategy, and the compensation strategy includes: each time the UVC detector is started, adding the absolute value of the output signal power to the signal compensation value of each detection node in its corresponding signal fluctuation section to obtain a reference signal value, and taking the reference signal value as the compensated normal signal value. Among them, in Figures 3 - 5 the abscissa is time, the time span is 0 - 100, the ordinate is the absolute value of the signal power, and the ordinate span is 0 - 1. The units of the abscissa and the ordinate are reference units, which can be specifically set according to the actual detection situation. For example, the abscissa is in seconds and the ordinate is in decibels.

[0040] Embodiment 2, on the basis of Embodiment 1, increase the number of detections to improve accuracy. In Embodiment 2, the signal processing strategy further includes: performing a number of detection experiments on the UVC detector, obtaining data after the UVC detector is started a number of times, calculating the average value of the stable values of the absolute values of the signal powers output by the UVC detector obtained a number of times, and taking this average value as the final stable value of the absolute value of the signal power output by the UVC detector.

[0041] The compensation calculation strategy further includes: analyzing the data obtained after the UVC detector is started a number of times, and obtaining the starting point of the first time period when the signal fluctuation values are less than or equal to the first fluctuation threshold a number of times. Taking the last time node among them as the end point of the signal fluctuation section and the starting point of the signal stable section, and taking the start time of the UVC detector as the starting point of the signal fluctuation section;

[0042] Calculating the average value of the absolute signal power values of each detection node in the signal fluctuation section obtained a number of times, taking this average value as the final absolute signal power value of this detection node, and then subtracting the final absolute signal power value of each detection node in the signal fluctuation section from the final stable value of the absolute value of the signal power to obtain the final signal compensation value of each detection node.

[0043] The compensation strategy further includes: each time the UVC detector is started, adding the final signal compensation value of each detection node in its corresponding signal fluctuation section to the absolute value of the output signal power to obtain a final reference signal value, and taking the final reference signal value as the final compensated normal signal value.

[0044] Embodiment 3, the present invention further provides a method for compensating the stability of a VC detector. The compensation method is obtained based on the processing strategy of the compensation system. The compensation method includes the following steps:

[0045] Step S1, first preliminarily process the signal output by the UVC detector to obtain the stable value of the absolute value of the signal power when the UVC detector is in stable output;

[0046] Step S2, divide the signal output of the UVC detector according to the nodes of the stable value of the absolute value of the acquired signal power, and then obtain the signal compensation value required when the UVC detector is in the signal fluctuation section;

[0047] Step S3, compensate the signal of the UVC detector in the signal fluctuation section according to the signal compensation value.

[0048] Embodiment 4 provides a specific signal processing method. Based on the method steps of Embodiment 3, the data of the UVC detector is substantially processed and analyzed, and finally a method for the UVC detector to perform signal supplementation is obtained. The compensation method further includes the following steps:

[0049] Step A1, correspond the absolute value of the signal power output by the UVC detector with the unit detection time in sequence. Substitute the absolute values of the signal power for several consecutive unit detection times into the signal fluctuation formula every first time period to obtain the signal fluctuation value;

[0050] The signal fluctuation value represents the change of the signal within consecutive unit detection times. The larger the signal fluctuation value, the greater the signal fluctuation;

[0051] When the detected signal fluctuation value is less than or equal to the first fluctuation threshold, obtain the average value of the absolute values of the signal power for several consecutive unit detection times within this first time period, and use this average value as the stable value of the absolute value of the signal power output by the UVC detector.

[0052] Step B1, obtain the starting point of the first time period when the signal fluctuation value is less than or equal to the first fluctuation threshold, set the starting point of this first time period as the end point of the signal fluctuation section and the starting point of the signal stable section, and use the start time of the UVC detector as the starting point of the signal fluctuation section;

[0053] Taking the unit detection time as the detection node, respectively obtain the absolute value of the signal power of the detection nodes within the signal fluctuation section, and substitute the absolute power value of the signal into the signal compensation formula to obtain the signal compensation value of this detection node;

[0054] Analyze the data after the UVC detector is started several times, and obtain the starting points of the first time periods when the signal fluctuation values are less than or equal to the first fluctuation threshold several times. Use the last time node among them as the end point of the signal fluctuation section and the starting point of the signal stable section, and use the start time of the UVC detector as the starting point of the signal fluctuation section;

[0055] Step C1, each time the UVC detector is started, add the absolute value of the output signal power to the signal compensation value of each detection node in its corresponding signal fluctuation section to obtain a reference signal value, and use the reference signal value as the normal signal value after compensation.

[0056] Example 5. In Example 5, further data refinement processing is performed on the basis of the compensation method in Example 4, which can improve the accuracy of signal compensation. The compensation method further includes the following steps:

[0057] Step A2: Conduct a number of detection experiments on the UVC detector, obtain the data after the UVC detector is started each time, calculate the average value of the stable values of the absolute signal power output by the UVC detector obtained each time, and use this average value as the final stable value of the absolute signal power output by the UVC detector.

[0058] Step B2: Calculate the average value of the absolute signal power values of each detection node within the signal fluctuation segments obtained each time, use this average value as the final absolute signal power value of this detection node, and then subtract the final absolute signal power value of each detection node within the signal fluctuation segment from the final stable value of the absolute signal power to obtain the final signal compensation value of each detection node.

[0059] Step C2: Each time the UVC detector is started, add the absolute signal power output to the final signal compensation value of each detection node in its corresponding signal fluctuation segment to obtain the final reference signal value, and use the final reference signal value as the final normal signal value after compensation.

[0060] Finally, it should be noted that the above-described embodiments are only specific implementation manners of the present invention, used to illustrate the technical solutions of the present invention, rather than limiting them. The protection scope of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: Any person skilled in the art within the technical scope disclosed by the present invention can still modify the technical solutions recorded in the foregoing embodiments, or can easily think of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A UVC detector stability compensation system, characterized in that, The compensation system includes a UVC detector, a signal processing module, and a compensation module. The UVC detector is electrically connected to the signal processing module, and the signal processing module is electrically connected to the compensation module. The UVC detector is used to send a detection signal to the signal processing module; The signal processing module is used to preliminarily process the signal output by the UVC detector to obtain a stable value of the absolute value of the signal power when the UVC detector is in stable output; The compensation module is used to divide the signal output of the UVC detector according to the node of the obtained stable value of the absolute value of the signal power, then obtain the signal compensation value required when the UVC detector is in the signal fluctuation section, and then compensate the signal of the UVC detector in the signal fluctuation section according to the signal compensation value; The signal processing module is configured with a signal processing strategy, and the signal processing strategy includes: corresponding the absolute value of the signal power output by the UVC detector with the unit detection time in sequence, and substituting the absolute values of the signal power of several consecutive unit detection times into the signal fluctuation formula every first time period to obtain the signal fluctuation value; The signal fluctuation value represents the change of the signal within consecutive unit detection times. The larger the signal fluctuation value, the greater the signal fluctuation; When the detected signal fluctuation value is less than or equal to the first fluctuation threshold, obtain the average value of the absolute values of the signal power of several consecutive unit detection times within this first time period, and use this average value as the stable value of the absolute value of the signal power output by the UVC detector; The signal fluctuation formula is configured as: Among them, Pxb is the signal fluctuation value, and dbm1 to dbm a are respectively the absolute values of the signal power of several consecutive unit detection times within the first time period, and a is the number of several consecutive unit detection times within the first time period; The compensation module is configured with a compensation calculation strategy, and the compensation calculation strategy includes: obtaining the starting point of the first time period when the signal fluctuation value is less than or equal to the first fluctuation threshold, setting the starting point of this first time period as the end point of the signal fluctuation section and the starting point of the signal stable section, and using the startup time of the UVC detector as the starting point of the signal fluctuation section; Taking the unit detection time as the detection node, respectively obtain the absolute value of the signal power of the detection nodes within the signal fluctuation section, and substitute the absolute value of the signal power into the signal compensation formula to obtain the signal compensation value of this detection node; The compensation module is also configured with a compensation strategy, and the compensation strategy includes: each time the UVC detector is started, add the absolute value of the output signal power to the signal compensation value of each detection node in its corresponding signal fluctuation section to obtain a reference signal value, and use the reference signal value as the compensated normal signal value.

2. The stability compensation system of a UVC detector according to claim 1, wherein The signal compensation formula is configured as: Bdbm = dbm w - dbm b ; Among them, Bdbm is the signal compensation value, in dbm w is the stable value of the absolute value of the signal power output by the UVC detector, in dbm b is the absolute value of the signal power of the detection node within the signal fluctuation section.

3. The stability compensation system of a UVC detector according to claim 2, characterized in that The signal processing strategy also includes: conducting several detection experiments on the UVC detector, obtaining the data after the UVC detector is started several times, calculating the average value of the stable values of the absolute values of the signal power output by the UVC detector obtained several times, and using this average value as the final stable value of the absolute value of the signal power output by the UVC detector; The compensation calculation strategy also includes: analyzing the data obtained after the UVC detector is started several times, and obtaining the starting points of the first time periods when the signal fluctuation values are less than or equal to the first fluctuation threshold several times, using the last time node among them as the end point of the signal fluctuation section and the starting point of the signal stable section, and using the startup time of the UVC detector as the starting point of the signal fluctuation section; Obtain the average value of the absolute signal power values of each detection node within the signal fluctuation segments obtained several times, and use this average value as the absolute value of the final signal power of this detection node. Then subtract the absolute value of the final signal power of each detection node within the signal fluctuation segment from the final stable value of the absolute signal power to obtain the final signal compensation value of each detection node; The compensation strategy further includes: each time the UVC detector is started, add the absolute value of the output signal power to the final signal compensation value of each detection node in its corresponding signal fluctuation segment to obtain the final reference signal value, and use the final reference signal value as the final normal signal value after compensation.

4. The compensation method of a UVC detector stability compensation system according to any one of claims 1-3, characterized in that The compensation method includes the following steps: Step S1: First, preliminarily process the signal output by the UVC detector to obtain the stable value of the absolute value of the signal power when the UVC detector is in stable output; Step S2: Divide the signal output of the UVC detector according to the nodes of the obtained stable value of the absolute value of the signal power, and then obtain the signal compensation value required when the UVC detector is in the signal fluctuation segment; Step S3: Compensate the signal of the UVC detector in the signal fluctuation segment according to the signal compensation value.

Images