CN112730464A - Sludge concentration online measurement method and device, electronic equipment and medium - Google Patents
Sludge concentration online measurement method and device, electronic equipment and medium Download PDFInfo
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- CN112730464A CN112730464A CN202011639554.8A CN202011639554A CN112730464A CN 112730464 A CN112730464 A CN 112730464A CN 202011639554 A CN202011639554 A CN 202011639554A CN 112730464 A CN112730464 A CN 112730464A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
- G01N22/04—Investigating moisture content
Abstract
The application discloses a method and a device for measuring sludge concentration on line, electronic equipment and a medium. The method can comprise the following steps: determining initial waveform information of the microwave signal; penetrating a microwave signal through a test sludge sample to obtain test waveform information; obtaining measurement data according to the initial waveform information and the test waveform information; establishing a fitting relation between the measurement data and the concentration of the sludge sample to be tested; and (4) penetrating the microwave signal through the sludge sample to be detected, and calculating the concentration of the sludge sample to be detected according to the fitting relation. The invention carries out the sludge concentration test based on the microwave propagation principle, and the test result ensures the test precision.
Description
Technical Field
The invention relates to the field of sludge concentration measurement, in particular to a method and a device for online measurement of sludge concentration, electronic equipment and a medium.
Background
The sludge concentration, i.e. the number of milligrams of net weight of the dry sludge suspended and mixed in unit volume of the aeration zone in the activated sludge process, is an important parameter of the MBR system, and not only affects the removal capacity of organic matters, but also affects the membrane flux. Therefore, the online detection of the sewage concentration has great significance in the sewage treatment process.
For many years, the concentration of the sludge is usually measured by a more traditional weighing method, namely, the concentration of the sludge is calculated by comparing the dried weight of the sludge with the original weight of the sludge. The method is time-consuming in operation and low in efficiency, and cannot meet the requirements of realizing automation of a sewage treatment process and acquiring the characteristic quantity of the sludge on line in real time.
Therefore, there is a need to develop a method, an apparatus, an electronic device and a medium for online measurement of sludge concentration.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention provides a method and a device for measuring sludge concentration on line, electronic equipment and a medium, which can be used for measuring the sludge concentration based on the microwave propagation principle, and the test result ensures the test precision.
In a first aspect, an embodiment of the present invention provides an online measurement method for sludge concentration, including:
determining initial waveform information of the microwave signal;
penetrating the microwave signal through a test sludge sample to obtain test waveform information;
obtaining measurement data according to the initial waveform information and the test waveform information;
establishing a fitting relation between the measurement data and the concentration of the test sludge sample;
and penetrating the microwave signal through a sludge sample to be detected, and calculating the concentration of the sludge sample to be detected according to the fitting relation.
Preferably, the measurement data comprises an amplitude and phase shift difference of the microwave signal.
Preferably, the phase shift difference is obtained by subtracting a phase in the initial waveform information and the test waveform information of the microwave signal.
Preferably, software filtering and preprocessing are performed on the amplitude.
Preferably, the software filtering is:
collecting a plurality of analog-to-digital signal values for the same amplitude;
and aiming at a plurality of analog-to-digital signal values, removing extreme values and then averaging to obtain the optimized analog-to-digital signal value of the amplitude.
Preferably, the pretreatment is:
subtracting a reference signal value corresponding to the microwave signal passing through the purified water from the optimized analog-to-digital signal value to obtain a processed amplitude value;
fitting is performed through the processed amplitude values.
Preferably, the frequency of the microwave signal is 9.2 GHz.
As a specific implementation of an embodiment of the present invention,
in a second aspect, an embodiment of the present invention further provides an online sludge concentration measuring device, including:
the sludge sample is positioned on the microwave signal path of the signal transmitting unit and the signal transmitting unit;
a signal transmitting unit which transmits a microwave signal to penetrate the sludge sample;
a signal receiving unit for receiving the microwave signal penetrating the sludge sample;
the control system is in communication connection with the signal transmitting unit and the signal receiving unit, and completes the following steps:
determining initial waveform information of the microwave signal;
penetrating the microwave signal through a test sludge sample to obtain test waveform information;
obtaining measurement data according to the initial waveform information and the test waveform information;
establishing a fitting relation between the measurement data and the concentration of the test sludge sample;
and penetrating the microwave signal through a sludge sample to be detected, and calculating the concentration of the sludge sample to be detected according to the fitting relation.
Preferably, the measurement data comprises an amplitude and phase shift difference of the microwave signal.
Preferably, the phase shift difference is obtained by subtracting a phase in the initial waveform information and the test waveform information of the microwave signal.
Preferably, software filtering and preprocessing are performed on the amplitude.
Preferably, the software filtering is:
collecting a plurality of analog-to-digital signal values for the same amplitude;
and aiming at a plurality of analog-to-digital signal values, removing extreme values and then averaging to obtain the optimized analog-to-digital signal value of the amplitude.
Preferably, the pretreatment is:
subtracting a reference signal value corresponding to the microwave signal passing through the purified water from the optimized analog-to-digital signal value to obtain a processed amplitude value;
fitting is performed through the processed amplitude values.
Preferably, the frequency of the microwave signal is 9.2 GHz.
In a third aspect, an embodiment of the present invention further provides an electronic device, where the electronic device includes:
a memory storing executable instructions;
a processor executing the executable instructions in the memory to implement the method for online measurement of sludge concentration.
In a fourth aspect, the embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements the online sludge concentration measuring method.
The beneficial effects are that: non-contact equipment is selected to accurately measure the concentration of the sludge, so that the installation is convenient, the production is not influenced, the sludge concentration test process can be fast and real-time, and the cost of the corresponding treatment and detection process can be greatly reduced; the concentration of the sludge is directly measured by adopting a microwave detection principle, so that the real-time online detection of the concentration of the sludge is realized, the detection process reaches intellectualization, and the method is a novel detection method; by using the method, the process links of adding the flocculating agent in the sludge can realize the optimization, the precision and the process automation, and the cost is reduced.
The method and apparatus of the present invention have other features and advantages which will be apparent from or are set forth in detail in the accompanying drawings and the following detailed description, which are incorporated herein, and which together serve to explain certain principles of the invention.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts.
Fig. 1 shows a schematic view of a principle diagram according to the invention.
Fig. 2 shows a schematic diagram of the signal flow of measurement data according to an embodiment of the invention.
Fig. 3 shows a flow chart of the steps of a method for online measurement of sludge concentration according to an embodiment of the present invention.
Fig. 4 shows a block diagram of an online sludge concentration measuring device according to an embodiment of the present invention.
Description of reference numerals:
201. a sludge sample; 202. a signal transmitting unit; 203. a signal receiving unit; 204. and (5) controlling the system.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein.
The invention provides an online measuring method of sludge concentration, which comprises the following steps:
determining initial waveform information of the microwave signal;
penetrating a microwave signal through a test sludge sample to obtain test waveform information;
obtaining measurement data according to the initial waveform information and the test waveform information;
establishing a fitting relation between the measurement data and the concentration of the sludge sample to be tested;
and (4) penetrating the microwave signal through the sludge sample to be detected, and calculating the concentration of the sludge sample to be detected according to the fitting relation.
In one example, the measurement data includes an amplitude and phase shift difference of the microwave signal.
In one example, the phase shift difference is obtained by subtracting the phase in the initial waveform information and the test waveform information of the microwave signal.
In one example, software filtering and pre-processing is performed for the amplitude values.
In one example, the software filtering is:
collecting a plurality of analog-to-digital signal values for the same amplitude;
and aiming at a plurality of analog-to-digital signal values, removing extreme values and then averaging to obtain the optimized analog-to-digital signal value of the amplitude.
In one example, the pre-processing is:
subtracting a reference signal value corresponding to the microwave signal passing through the purified water from the optimized analog-to-digital signal value to obtain a processed amplitude value;
fitting is performed by the processed amplitude values.
In one example, the frequency of the microwave signal is 9.2 GHz.
Fig. 1 shows a schematic view of a principle diagram according to the invention.
Specifically, the propagation velocity of the microwave and the concentration of the sludge have a proportional relationship, that is, the propagation velocity of the microwave and the concentration of the sludge are as follows:
where V is the propagation velocity of the microwave, C is the propagation velocity of light in vacuum, and ε _ r is the relative dielectric constant of the medium. Since the dielectric constant of water is about 80, the dielectric constant of fillers such as clay is usually 3 to 7. From equation (1), it can be seen that the propagation speed of the microwave in water is much slower than that in soil, and the propagation speed of the microwave in water is almost 25 times lower than that in a filler such as soil. Therefore, the lower the water concentration in the sludge in a certain pipe diameter is, the shorter the propagation time of the microwave is; conversely, the longer the propagation time of the microwave. In addition, after a microwave signal with a certain frequency passes through a measured mud-water mixture with a certain section, the phase of the signal is changed (namely phase shift) compared with that of a signal passing through purified water with the same section, and the phase shift difference value has an approximately linear relation with the moisture content (namely the sludge concentration) of the mud-water mixture. The principle diagram of the invention is shown in fig. 1.
By utilizing the microwave conduction delay detection principle, the concentration of the moisture content in the sludge is directly measured without contact, and the measurement precision is higher compared with other modes. The microwave signal is transverse to the cross section of the pipeline, and the obtained test result has high average degree. In addition, the sludge moisture testing method based on the microwave propagation principle is designed with an automatic calibration function, and the testing result can be calculated and calibrated by software, so that the testing precision is ensured. Accordingly, the corresponding device or system is easier to maintain.
Determining initial waveform information of the microwave signal; penetrating a microwave signal through a test sludge sample to obtain test waveform information; obtaining measurement data according to the initial waveform information and the test waveform information; establishing a fitting relation between the measurement data and the concentration of the sludge sample to be tested; and (4) penetrating the microwave signal through the sludge sample to be detected, and calculating the concentration of the sludge sample to be detected according to the fitting relation.
The measurement data comprises amplitude and phase shift difference of the microwave signal, the phase shift difference is obtained by subtracting phases in the initial waveform information and the test waveform information of the microwave signal, and software filtering and preprocessing are carried out on the amplitude.
The software filtering is to collect a plurality of analog-to-digital signal (A/D) values for the same amplitude; and aiming at a plurality of A/D values, removing extreme values and then averaging to obtain the optimized A/D value of the amplitude.
The pretreatment comprises the following steps: subtracting a reference signal value corresponding to the microwave signal passing through the purified water from the optimized A/D value to obtain a processed amplitude value; fitting is carried out through the processed amplitude, and in order to improve fitting accuracy, a least square method is adopted for piecewise fitting.
The microwave signal frequency selection not only needs to consider the signal wavelength characteristic, also needs to consider whether the pipe diameter of the mud-water mixture sampling pipe meets the requirement that the frequency microwave signal is transmitted by the antenna, the distance of the receiving antenna is a far field region of the wavelength signal, and the distance of the receiving and transmitting antenna meets the following requirements:
wherein R is the distance between the microwave signal receiving and transmitting antennas, D is the diameter of the antenna, and lambda is the wavelength of the microwave signal, through calculation, a 9.2GHz microwave signal frequency penetrates sampling tubes with the diameters of 80mm and 100mm, and accurate parameters of the measured sludge concentration are obtained through a sampling circuit and by using a filtering algorithm.
The invention also provides a device for measuring the sludge concentration on line, which comprises:
the sludge sample is positioned on the microwave signal path of the signal transmitting unit and the signal transmitting unit;
a signal transmitting unit for transmitting a microwave signal to penetrate through the sludge sample;
the signal receiving unit is used for receiving the microwave signal penetrating through the sludge sample;
the control system is in communication connection with the signal transmitting unit and the signal receiving unit, and the following steps are completed:
determining initial waveform information of the microwave signal;
penetrating a microwave signal through a test sludge sample to obtain test waveform information;
obtaining measurement data according to the initial waveform information and the test waveform information;
establishing a fitting relation between the measurement data and the concentration of the sludge sample to be tested;
and (4) penetrating the microwave signal through the sludge sample to be detected, and calculating the concentration of the sludge sample to be detected according to the fitting relation.
In one example, the measurement data includes an amplitude and phase shift difference of the microwave signal.
In one example, the phase shift difference is obtained by subtracting the phase in the initial waveform information and the test waveform information of the microwave signal.
In one example, software filtering and pre-processing is performed for the amplitude values.
In one example, the software filtering is:
collecting a plurality of analog-to-digital signal values for the same amplitude;
and aiming at a plurality of analog-to-digital signal values, removing extreme values and then averaging to obtain the optimized analog-to-digital signal value of the amplitude.
In one example, the pre-processing is:
subtracting a reference signal value corresponding to the microwave signal passing through the purified water from the optimized analog-to-digital signal value to obtain a processed amplitude value;
fitting is performed by the processed amplitude values.
In one example, the frequency of the microwave signal is 9.2 GHz.
Fig. 2 shows a schematic diagram of the signal flow of measurement data according to an embodiment of the invention.
Specifically, the online measuring device for the sludge concentration comprises:
the sludge sample is positioned on the microwave signal path of the signal transmitting unit and the signal transmitting unit;
a signal transmitting unit for transmitting a microwave signal to penetrate through the sludge sample;
the signal receiving unit is used for receiving the microwave signal penetrating through the sludge sample;
the control system is in communication connection with the signal transmitting unit and the signal receiving unit, receives signals and completes the following steps:
determining initial waveform information of the microwave signal; penetrating a microwave signal through a test sludge sample to obtain test waveform information; obtaining measurement data according to the initial waveform information and the test waveform information, wherein the signal flow direction of the obtained measurement data is shown in fig. 2; establishing a fitting relation between the measurement data and the concentration of the sludge sample to be tested; and (4) penetrating the microwave signal through the sludge sample to be detected, and calculating the concentration of the sludge sample to be detected according to the fitting relation.
The measurement data comprises amplitude and phase shift difference of the microwave signal, the phase shift difference is obtained by subtracting phases in the initial waveform information and the test waveform information of the microwave signal, and software filtering and preprocessing are carried out on the amplitude.
The software filtering is to collect a plurality of analog-to-digital signal (A/D) values for the same amplitude; and aiming at a plurality of A/D values, removing extreme values and then averaging to obtain the optimized A/D value of the amplitude.
The pretreatment comprises the following steps: subtracting a reference signal value corresponding to the microwave signal passing through the purified water from the optimized A/D value to obtain a processed amplitude value; fitting is carried out through the processed amplitude, and in order to improve fitting accuracy, a least square method is adopted for piecewise fitting.
The microwave signal frequency selection needs to consider not only the signal wavelength characteristic, but also whether the pipe diameter of the mud-water mixture sampling pipe meets the requirement that the frequency microwave signal is transmitted by an antenna, the distance of a receiving antenna is a far field region of the wavelength signal, the distance of a receiving antenna meets a formula (2), through calculation, the sampling pipe with the diameter of 80mm and 100mm is penetrated by the frequency of the 9.2GHz microwave signal, and the accurate parameter of the measured sludge concentration is obtained by utilizing a filtering algorithm after passing through a sampling circuit.
The present invention also provides an electronic device, comprising: a memory storing executable instructions; and the processor runs the executable instructions in the memory to realize the online sludge concentration measuring method.
The present invention also provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the above-described method for online measurement of sludge concentration.
To facilitate understanding of the scheme of the embodiments of the present invention and the effects thereof, four specific application examples are given below. It will be understood by those skilled in the art that this example is merely for the purpose of facilitating an understanding of the present invention and that any specific details thereof are not intended to limit the invention in any way.
Example 1
Fig. 3 shows a flow chart of the steps of a method for online measurement of sludge concentration according to an embodiment of the present invention.
As shown in fig. 3, the method for measuring the sludge concentration on line comprises the following steps: step 101, determining initial waveform information of a microwave signal; 102, penetrating a microwave signal through a test sludge sample to obtain test waveform information; 103, obtaining measurement data according to the initial waveform information and the test waveform information; 104, establishing a fitting relation between the measurement data and the concentration of the sludge sample to be tested; and 105, penetrating the microwave signal into the sludge sample to be detected, and calculating the concentration of the sludge sample to be detected according to the fitting relation.
The measurement data comprises amplitude and phase shift difference of the microwave signal, the phase shift difference is obtained by subtracting phases in the initial waveform information and the test waveform information of the microwave signal, and software filtering and preprocessing are carried out on the amplitude.
The software filtering is to collect a plurality of analog-to-digital signal (A/D) values for the same amplitude; and aiming at a plurality of A/D values, removing extreme values and then averaging to obtain the optimized A/D value of the amplitude.
The pretreatment comprises the following steps: subtracting a reference signal value corresponding to the microwave signal passing through the purified water from the optimized A/D value to obtain a processed amplitude value; fitting is carried out through the processed amplitude, and in order to improve fitting accuracy, a least square method is adopted for piecewise fitting.
The microwave signal frequency selection needs to consider not only the signal wavelength characteristic, but also whether the pipe diameter of the mud-water mixture sampling pipe meets the requirement that the frequency microwave signal is transmitted by an antenna, the distance of a receiving antenna is a far field region of the wavelength signal, the distance of a receiving antenna meets a formula (2), through calculation, the sampling pipe with the diameter of 80mm and 100mm is penetrated by the frequency of the 9.2GHz microwave signal, and the accurate parameter of the measured sludge concentration is obtained by utilizing a filtering algorithm after passing through a sampling circuit.
Example 2
Fig. 4 shows a block diagram of an online sludge concentration measuring device according to an embodiment of the present invention.
As shown in fig. 4, the online measuring device for sludge concentration includes:
the sludge sample 201 is positioned on a microwave signal path of the signal transmitting unit and the signal transmitting unit;
a signal transmitting unit 202 that transmits a microwave signal to penetrate the sludge sample;
a signal receiving unit 203 for receiving the microwave signal penetrating the sludge sample;
the control system 204 is in communication connection with the signal transmitting unit and the signal receiving unit, and completes the following steps:
determining initial waveform information of the microwave signal;
penetrating a microwave signal through a test sludge sample to obtain test waveform information;
obtaining measurement data according to the initial waveform information and the test waveform information;
establishing a fitting relation between the measurement data and the concentration of the sludge sample to be tested;
and (4) penetrating the microwave signal through the sludge sample to be detected, and calculating the concentration of the sludge sample to be detected according to the fitting relation.
Alternatively, the measurement data comprises the amplitude and phase shift difference of the microwave signal.
Alternatively, the phase shift difference is obtained by subtracting the phase in the initial waveform information and the test waveform information of the microwave signal.
Alternatively, software filtering and pre-processing is performed on the amplitude values.
Alternatively, the software filtering is:
collecting a plurality of analog-to-digital signal values for the same amplitude;
and aiming at a plurality of analog-to-digital signal values, removing extreme values and then averaging to obtain the optimized analog-to-digital signal value of the amplitude.
As an alternative, the pretreatment is:
subtracting a reference signal value corresponding to the microwave signal passing through the purified water from the optimized analog-to-digital signal value to obtain a processed amplitude value;
fitting is performed by the processed amplitude values.
Alternatively, the frequency of the microwave signal is 9.2 GHz.
Example 3
The present invention provides an electronic device including: a memory storing executable instructions; and the processor runs the executable instructions in the memory to realize the online sludge concentration measuring method.
An electronic device according to an embodiment of the invention includes a memory and a processor.
The memory is to store non-transitory computer readable instructions. In particular, the memory may include one or more computer program products that may include various forms of computer-readable storage media, such as volatile memory and/or non-volatile memory. The volatile memory may include, for example, Random Access Memory (RAM), cache memory (cache), and/or the like. The non-volatile memory may include, for example, Read Only Memory (ROM), hard disk, flash memory, etc.
The processor may be a Central Processing Unit (CPU) or other form of processing unit having data processing capabilities and/or instruction execution capabilities, and may control other components in the electronic device to perform desired functions. In one embodiment of the invention, the processor is configured to execute the computer readable instructions stored in the memory.
Those skilled in the art should understand that, in order to solve the technical problem of how to obtain a good user experience, the present embodiment may also include well-known structures such as a communication bus, an interface, and the like, and these well-known structures should also be included in the protection scope of the present invention.
For the detailed description of the present embodiment, reference may be made to the corresponding descriptions in the foregoing embodiments, which are not repeated herein.
Example 4
The embodiment of the invention provides a computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the computer program realizes the online measurement method of the sludge concentration.
A computer-readable storage medium according to an embodiment of the present invention has non-transitory computer-readable instructions stored thereon. The non-transitory computer readable instructions, when executed by a processor, perform all or a portion of the steps of the methods of embodiments of the invention previously described.
The computer-readable storage media include, but are not limited to: optical storage media (e.g., CD-ROMs and DVDs), magneto-optical storage media (e.g., MOs), magnetic storage media (e.g., magnetic tapes or removable disks), media with built-in rewritable non-volatile memory (e.g., memory cards), and media with built-in ROMs (e.g., ROM cartridges).
It will be appreciated by persons skilled in the art that the above description of embodiments of the invention is intended only to illustrate the benefits of embodiments of the invention and is not intended to limit embodiments of the invention to any examples given.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. An online measurement method for sludge concentration is characterized by comprising the following steps:
determining initial waveform information of the microwave signal;
penetrating the microwave signal through a test sludge sample to obtain test waveform information;
obtaining measurement data according to the initial waveform information and the test waveform information;
establishing a fitting relation between the measurement data and the concentration of the test sludge sample;
and penetrating the microwave signal through a sludge sample to be detected, and calculating the concentration of the sludge sample to be detected according to the fitting relation.
2. The method for on-line measurement of sludge concentration according to claim 1, wherein the measurement data comprises amplitude and phase shift difference of microwave signal.
3. The method for measuring the sludge concentration on-line as claimed in claim 2, wherein the phase shift difference is obtained by subtracting the phase in the initial waveform information and the test waveform information of the microwave signal.
4. The method for measuring the sludge concentration on line according to claim 2, wherein software filtering and preprocessing are performed on the amplitude.
5. The method for measuring the sludge concentration on line according to claim 4, wherein the software filtering is as follows:
collecting a plurality of analog-to-digital signal values for the same amplitude;
and aiming at a plurality of analog-to-digital signal values, removing extreme values and then averaging to obtain the optimized analog-to-digital signal value of the amplitude.
6. The method for measuring the sludge concentration on-line as claimed in claim 5, wherein the pretreatment is:
subtracting a reference signal value corresponding to the microwave signal passing through the purified water from the optimized analog-to-digital signal value to obtain a processed amplitude value;
fitting is performed through the processed amplitude values.
7. The method for measuring the sludge concentration on-line as claimed in claim 1, wherein the frequency of the microwave signal is 9.2 GHz.
8. The utility model provides a mud concentration on-line measuring device which characterized in that includes:
the sludge sample is positioned on the microwave signal path of the signal transmitting unit and the signal transmitting unit;
a signal transmitting unit which transmits a microwave signal to penetrate the sludge sample;
a signal receiving unit for receiving the microwave signal penetrating the sludge sample;
the control system is in communication connection with the signal transmitting unit and the signal receiving unit, and completes the following steps:
determining initial waveform information of the microwave signal;
penetrating the microwave signal through a test sludge sample to obtain test waveform information;
obtaining measurement data according to the initial waveform information and the test waveform information;
establishing a fitting relation between the measurement data and the concentration of the test sludge sample;
and penetrating the microwave signal through a sludge sample to be detected, and calculating the concentration of the sludge sample to be detected according to the fitting relation.
9. An electronic device, characterized in that the electronic device comprises:
a memory storing executable instructions;
a processor executing the executable instructions in the memory to implement the method of online measurement of sludge concentration of any one of claims 1-7.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when executed by a processor, implements the method for online measurement of sludge concentration according to any one of claims 1 to 7.
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