Multi-data fusion sediment measuring device

Abstract

The invention discloses a multi-data fusion sediment measuring device which comprises a cylindrical underwater measuring device which is through in the middle and based on the light scattering principle and an automatic photoelectric system matched with the cylindrical underwater measuring device. The device is used for collecting backscatter, transmission and 45-degree, 90-degree and 135-degree scattered light intensities generated by the sand-containing water flow flowing through the middle through area of the light source. According to the system, the noise of the system is reduced through hardware model selection, hardware design and a software algorithm, the external interference is reduced, and accurate acquisition, measurement and data storage of the light intensity are realized. Besides, the multi-data fusion sediment measurement device can provide multi-feature data for forming a targeted machine learning model of a target drainage basin, realizes monitoring of the content of common sediment in the target drainage basin in different time and space in the drainage basin, has wide applicability and is suitable for popularization and application. And help is provided for the fields of water resource management, ecological system protection and the like of the device putting and using drainage basin.

Description

Technical Field

[0001] The invention belongs to the technical field of sediment measurement, and in particular to a multi-data fusion sediment measurement device and system. Background Art

[0002] my country has many rivers. The sediment control problem of the Yellow River, the most important one, has always been the focus of environmental protection and water resources management. In the existing technology, there are the following problems: (1) Single backscattering or 90° scattering cannot accurately reflect the sediment content of the river. The measurement accuracy will be affected by hydrological factors such as different sediment particle size and color in different river basins; (2) Traditional sampling measurement cannot accurately reflect the sediment content in the river that changes continuously with time and space, and has limitations.

[0003] Therefore, it is necessary to design a multi-data fusion sediment measurement device and system that can be widely applied to practical application needs in various watershed environments. Summary of the invention

[0004] The purpose of the present invention is to provide a multi-data fusion sediment measurement device to address the traditional single optical backscattering error problem caused by different watershed environmental variables (such as sediment particle size, color, size, etc.) in the above-mentioned prior art.

[0005] The technical solution to achieve the purpose of the present invention is: a multi-data fusion sediment measurement device, the measurement device includes a housing, an optical module, a signal conditioning module, a signal acquisition module, a power module, a power supply module, a communication module, a main control module and a host computer;

[0006] The housing comprises a shell, and an upper cover and a lower cover respectively covering the upper and lower ends of the shell; the shell is a cylindrical structure with a hollow center, comprising a cylindrical outer cylinder and a polygonal inner cylinder nested inside the cylindrical outer cylinder, and there is a gap between the cylindrical outer cylinder and the polygonal inner cylinder for assembling other modules of the measuring device; the centers of the upper cover and the lower cover are both dug with holes, and are connected with the center of the shell, for accommodating the liquid to be measured;

[0007] The optical module includes: a light source module, which is used to emit infrared light modulated by square waves to the liquid to be tested, and after being scattered and transmitted by the liquid to be tested, form optical signals in various directions, and is also used to detect the light intensity of the optical signal in one direction; a light intensity detection module, which is used to detect the light intensity of the optical signals in other directions;

[0008] The signal conditioning module is used to process the voltage signal output by the optical module, including amplification, filtering and rectification;

[0009] The signal acquisition module is used to convert the analog signal output by the signal conditioning module into a digital signal and transmit it to the communication module;

[0010] The communication module is used to send the received data to the host computer;

[0011] The host computer is used to display the received data in real time and draw a change curve, and at the same time process the received data to obtain the sediment concentration of the liquid to be tested;

[0012] The power supply module is used to provide underwater power supply for the entire device;

[0013] The power supply module is used to convert the voltage provided by the power supply module into the voltage required by other modules;

[0014] The main control module is used to control the work and coordinated operation of other modules.

[0015] Furthermore, the light source module is installed on one side surface of the polygonal inner cylinder, and one light intensity detection module is installed on each of the other side surfaces.

[0016] Furthermore, the light source module includes a light source installed on a first circuit board and arranged along the axial direction of the shell, i.e., the vertical direction, and an infrared detection tube, the infrared detection tube is located at the lower side of the light source, and a partition is provided between the light source and the infrared detection tube; the infrared detection tube is used to collect the 0° backscattered light intensity of the emitted light of the light source after passing through the liquid to be tested, and the 0° is the direction of the emitted light of the light source; the first circuit board is arranged in the gap and is fixedly mounted on the outer wall of the polygonal inner tube; the light source and the infrared detection tube are respectively installed in the first through hole and the second through hole on the polygonal inner tube, and the ends of the first through hole and the second through hole that are in contact with the liquid to be tested are both sealed and equipped with light-transmitting mirrors.

[0017] Furthermore, the light intensity detection module includes an infrared detection tube installed on a second circuit board, which is used to collect the scattered light intensity in other directions after the output light of the light source module passes through the liquid to be tested. The second circuit board is arranged in the gap and is fixedly installed on the outer wall of the polygonal inner cylinder; the infrared detection tube is installed in a third through hole on the polygonal inner cylinder, and the end of the third through hole in contact with the liquid to be tested is sealed and assembled with a light-transmitting mirror.

[0018] Furthermore, taking the emitting light direction of the light source as a 0° reference direction, the light intensity detection module directly opposite to the light source module collects 180° transmitted light intensity, and the remaining light intensity detection modules respectively collect scattered light intensities in different directions.

[0019] Furthermore, the first through hole, the second through hole and the third through hole are each provided with a threaded structure, and the light-transmitting mirror is installed in the corresponding through hole via a pressing ring.

[0020] Furthermore, plastic gaskets are provided at the installation positions of the first circuit board, the second circuit board and the polygonal inner cylinder, and the connection between the pressure ring and the polygonal inner cylinder is filled with a rubber gasket.

[0021] Furthermore, the measuring device also includes a fixed metal block mounted on the outer wall of the cylindrical outer tube for fixing the entire sediment measuring device.

[0022] Furthermore, the measuring device also includes a communication power supply through hole installed on the cylindrical outer cylinder, an internal connection terminal with a metal contact is installed inside the communication power supply through hole, and a waterproof external connection terminal and its matching waterproof cable are installed outside; the internal connection terminal is fixedly installed on the inner facade of the cylindrical outer cylinder, and the external connection terminal is fixedly installed on the outer facade of the cylindrical outer cylinder; the internal connection terminal is used to connect the power supply module and the power supply module, and is also used to connect the communication module and the host computer.

[0023] Furthermore, the connections between the upper cover, the lower cover and the shell are filled with rubber gaskets.

[0024] Further, the signal conditioning module includes a transimpedance amplifier circuit, a high-pass filter circuit, a narrow-band pass filter circuit and a peak detection circuit connected in sequence;

[0025] The transimpedance amplifier circuit is used to losslessly amplify the current signal into a voltage signal;

[0026] The high-pass filter circuit is used to filter out low-frequency noise and power frequency interference;

[0027] The narrow bandpass filter circuit is used to filter out high and low frequency interference signals other than the modulation center frequency;

[0028] The peak detection circuit is used to convert the filtered sinusoidal signal into a DC signal.

[0029] Furthermore, the main control module is also used to perform preliminary preprocessing on the digital signal obtained by the signal acquisition module, including digital system conversion, smoothing filtering, RS485 logic level conversion, and then transmit it to the communication module.

[0030] Compared with the prior art, the present invention has the following significant advantages:

[0031] (1) The device of the present invention solves the problems of building an internal optical path, waterproofing and underwater fixation through mechanical structure design, and can be placed at a specified depth in a river for directional measurement.

[0032] (2) The device of the present invention realizes the collection of multiple data of scattered light intensity data by building an internal optical path, which is used as samples for subsequent machine learning and other data fusion algorithms.

[0033] (3) The light-transmitting mirrors used in the transmitting and receiving optical paths of the device of the present invention are designed to be detachable, which is convenient for cleaning and replacement in the case of long-term use.

[0034] (4) The system of the present invention uses multiple means such as infrared, modulation, filtering, and differential serial port data transmission to reduce external interference and improve measurement accuracy.

[0035] (5) The system of the present invention adopts a program-controlled amplification design, combined with high-precision analog-to-digital conversion chips and resistors and other components, to achieve universal applicability under high concentrations of sediment content.

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the main structure of a multi-data fusion sediment measurement device in one embodiment.

[0038] Figure 2 It is a schematic diagram of the side structure of a multi-data fusion sediment measurement device in one embodiment.

[0039] Figure 3 It is a schematic diagram of the side structure of a multi-data fusion sediment measurement device in one embodiment.

[0040] Figure 4 FIG. 4 is a structural diagram of a multi-data fusion sediment measurement system in one embodiment. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0042] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0043] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0044] In one embodiment, in combination Figures 1 to 4 , a multi-data fusion sediment measuring device is provided, the measuring device comprises a housing, an optical module, a signal conditioning module, a signal acquisition module, a power module, a power supply module, a communication module, a main control module and a host computer;

[0045] The housing includes a shell, and an upper cover and a lower cover respectively covering the upper and lower ends of the shell; the shell is a cylindrical structure with a hollow center, including a cylindrical outer cylinder 1, and a polygonal inner cylinder 3 nested inside the cylindrical outer cylinder 1, and there is a gap between the cylindrical outer cylinder 1 and the polygonal inner cylinder 3 for assembling other modules of the measuring device; the centers of the upper cover 2 and the lower cover are both dug with holes, and are connected with the center of the shell, for accommodating the liquid to be measured;

[0046] The optical module includes: a light source module 4, which is used to emit infrared light modulated by square waves to the liquid to be tested, and after being scattered and transmitted by the liquid to be tested, form optical signals in various directions, and is also used to detect the light intensity of the optical signal in one direction; a light intensity detection module 5, which is used to detect the light intensity of the optical signals in other directions;

[0047] The signal conditioning module is used to convert the photocurrent output by the optical module into a voltage signal, and perform amplification, filtering and rectification processing, and then transmit it to the signal acquisition module;

[0048] The signal acquisition module 13 is used to convert the analog signal output by the signal conditioning module into a digital signal and transmit it to the communication module;

[0049] The communication module is used to transmit the received data to the host computer;

[0050] The host computer is used to display the received data in real time and draw a change curve, and at the same time process the received data to obtain the sediment concentration of the liquid to be tested;

[0051] The power supply module is used to provide underwater power supply for the entire device;

[0052] The power supply module 14 is used to convert the voltage provided by the power supply module into the voltage required by other modules;

[0053] The main control module is used to control the work and coordinated operation of other modules.

[0054] Furthermore, in one of the embodiments, the light source module is installed on one side surface of the polygonal inner cylinder 3, and one light intensity detection module is installed on each of the other side surfaces.

[0055] Preferably, in some embodiments, the polygonal inner cylinder 3 is, but not limited to, an octagonal structure, wherein the light source module is installed on one side surface, and the light intensity detection modules are respectively installed on the remaining seven sides.

[0056] Preferably, in some embodiments, the light source module and the light intensity detection module are installed on the housing but not limited to a position close to the bottom 1 / 3 thereof.

[0057] Furthermore, in one embodiment, the light source module includes a light source 44 and a first infrared detection tube installed on a first circuit board and arranged along the axial direction of the shell, i.e., the vertical direction, and the first infrared detection tube, the first infrared detection tube is located at the lower side of the light source 44, and a partition is provided between the light source 44 and the first infrared detection tube; the first infrared detection tube is used to collect the 0° backscattered light intensity of the emitted light of the light source 44 after passing through the liquid to be tested, and the 0° is the emitted light direction of the light source 44; the first circuit board is arranged in the gap and is fixedly mounted on the outer wall of the polygonal inner tube 3; the light source 44 and the first infrared detection tube are respectively installed in the first through hole and the second through hole 11 on the polygonal inner tube 3, and the first through hole and the second through hole are sealed with a first light-transmitting mirror 42 at one end in contact with the liquid to be tested.

[0058] The light intensity detection module includes a second infrared detection tube 51 installed on a second circuit board, which is used to collect the scattered light intensity in other directions after the outgoing light of the light source module 4 passes through the liquid to be tested. The second circuit board is arranged in the gap and is fixedly installed on the outer wall of the polygonal inner tube 3; the second infrared detection tube 51 is installed in a third through hole on the polygonal inner tube 3, and the end of the third through hole in contact with the liquid to be tested is sealed with a second light-transmitting mirror 54.

[0059] Here, the light source and all the infrared detection tubes together constitute a photodiode array. It should be noted that any photodiode array having the same function as the present invention in any form falls within the protection scope of the present invention.

[0060] Furthermore, in one embodiment, the direction of the emitted light of the light source 44 is taken as the 0° reference direction, the light intensity detection module directly opposite to the light source module 4 collects 180° transmitted light intensity, and the remaining light intensity detection modules 5 collect scattered light intensities in different directions respectively.

[0061] Here, in some embodiments, for the polygonal inner cylinder 3 of the octagonal structure, with the light source module 4 as the starting point, the seven light intensity detection modules 5 are sequentially named as the first light intensity detection module to the seventh light intensity detection module in a counterclockwise direction, wherein the first light intensity detection module and the seventh light intensity detection module collect 45° forward scattered light intensity, the second and sixth light intensity detection modules collect 90° scattered light intensity, the third and fifth light intensity detection modules collect 135° backward scattered light intensity, and the fourth light intensity detection module collects 180° transmitted light intensity. At the same time, the seven light intensity detection modules collect the above light intensity signals as current signals.

[0062] Here, the light source module and the plurality of light intensity detection modules respectively pass through corresponding light-transmitting mirrors to form a light path.

[0063] Furthermore, in one embodiment, the first through hole, the second through hole and the third through hole are provided with threaded structures, and the first light-transmitting mirror 42 and the second light-transmitting mirror 54 are installed in the corresponding through holes through the first pressing ring 41 and the second pressing ring 55 respectively.

[0064] The solution of this embodiment is adopted to facilitate the disassembly, cleaning or replacement of the light-transmitting mirror.

[0065] Preferably, in some embodiments, the first light-transmitting mirror 42 and the second light-transmitting mirror 54 are made of planar quartz glass.

[0066] By adopting the solution of this embodiment, the quartz glass has excellent corrosion resistance and high hardness, which can reduce the replacement frequency of the light-transmitting mirror due to scratches caused by gravel.

[0067] Preferably, in some embodiments, the first light-transmitting mirror 42 and the second light-transmitting mirror 54 are respectively adhered to the inside of the first pressing ring 41 and the second pressing ring 55 by glue.

[0068] Preferably, in some embodiments, the connection between the first pressing ring 41, the second pressing ring 55 and the polygonal inner tube 3 is filled with, but not limited to, a first rubber gasket 43 and a second rubber gasket 56, respectively, to achieve waterproofing.

[0069] Preferably, in some embodiments, plastic gaskets 53 are provided at the installation positions of the first circuit board, the second circuit board and the polygonal inner cylinder 3, but are not limited to plastic gaskets 53, to achieve insulation.

[0070] Furthermore, in one embodiment, the measuring device further comprises two fixing metal blocks 6 mounted on the outer wall of the cylindrical outer tube 1 for fixing the entire sediment measuring device. Preferably, the two fixing metal blocks 6 are connected and fixed to the external platform through screw holes 62.

[0071] Furthermore, in one embodiment, the measuring device also includes a communication power supply through hole 7 installed on the cylindrical outer cylinder 1, an internal connection terminal 8 with a metal contact is installed inside the communication power supply through hole 7, and a waterproof external connection terminal 9 and its matching waterproof cable 10 are installed outside; the internal connection terminal 8 is fixedly installed on the inner facade of the cylindrical outer cylinder 1, and the external connection terminal 9 is fixedly installed on the outer facade of the cylindrical outer cylinder 1; the internal connection terminal 8 is used to connect the power supply module and the power supply module, and is also used to connect the communication module and the host computer.

[0072] Preferably, in some embodiments, the internal connection terminal 8 is provided with four metal contacts, two of which are used to connect the power supply module and the power supply module, and the other two metal contacts are used to connect the communication module and the host computer.

[0073] Preferably, in some embodiments, the communication module and the host computer communicate via RS485, which uses differential level to avoid common mode interference from the outside.

[0074] Furthermore, in one embodiment, the connection between the upper cover 2 and the lower cover and the shell is filled with rubber gaskets. Specifically, the connection between the upper cover 2 and the lower cover and the cylindrical outer tube 1 is filled with a third rubber gasket 22, and the connection between the upper cover 2 and the lower cover and the polygonal inner tube 3 is filled with a fourth rubber gasket 32.

[0075] Here, the cylindrical outer cylinder 1 and the polygonal inner cylinder 3 form a sealed structure through the upper cover and the lower cover.

[0076] Preferably, in some embodiments, the upper cover and the lower cover are ring-shaped structures, and both are the same size.

[0077] It should be noted that the installation and fixing methods between all the components in the above embodiments are, but not limited to, screws, screws such as 52, hexagonal nuts 81 or 91, hexagonal screws such as 61 or 31, hexagonal socket screws such as 21, etc., and are not specifically limited here. Further, the installation locations of the screws, screws, hexagonal nuts, hexagonal screws, hexagonal socket screws, etc. are all provided with waterproof gaskets.

[0078] Further, in one of the embodiments, the signal conditioning module includes a transimpedance amplifier circuit, a high-pass filter circuit, a narrow-band pass filter circuit and a peak detection circuit connected in sequence;

[0079] The transimpedance amplifier circuit is used to losslessly amplify the current signal into a voltage signal;

[0080] The high-pass filter circuit is used to filter out low-frequency noise and power frequency interference;

[0081] The narrow bandpass filter circuit is used to filter out high and low frequency interference signals other than the modulation center frequency;

[0082] The peak detection circuit is used to convert the filtered sinusoidal signal into a DC signal.

[0083] Furthermore, in one of the embodiments, the main control module is also used to perform preliminary preprocessing on the digital signal obtained by the signal acquisition module, including digital system conversion, smoothing filtering, RS485 logic level conversion, and then transmit it to the communication module.

[0084] By adopting the solution of this embodiment, the detection accuracy can be further improved through preprocessing inside the device and then processing by a host computer.

[0085] Furthermore, in one of the embodiments, the main control module is also used to generate a square wave signal with a specified center frequency and duty cycle to control the light intensity of the light source module.

[0086] Here preferably, the main control module adopts a main control chip MCU / SOC.

[0087] Furthermore, in one of the embodiments, the signal acquisition module uses an analog-to-digital conversion chip ADC, and controls the ADC to amplify the analog signal collected by it by a specified multiple through software, so as to make the ADC analog-to-digital conversion result a suitable value of 0-5V.

[0088] Preferably, in some embodiments, the signal acquisition module is used to convert the analog signal obtained by the signal conditioning module into a 24-bit high-precision digital signal, and adjust the sampling rate and analog-to-digital conversion gain according to actual conditions, and finally transmit the digital signal to the communication module through but not limited to the SPI protocol.

[0089] Preferably, in some embodiments, the signal acquisition module 13 is installed on the outer facade of the polygonal inner tube 3 and is located directly above the light source module 4 , and the power module 14 is installed on the other side of the polygonal inner tube 3 relative to the signal acquisition module 13 .

[0090] Furthermore, in one of the embodiments, the host computer obtains the sediment concentration of the liquid to be tested by a method including but not limited to a table lookup method.

[0091] The table in the table lookup method is specifically a voltage-concentration relationship table, which is obtained by but not limited to data fusion. Specifically: place the device of the present invention in an experimental water tank with a known sediment concentration. During this period, it is best to keep stirring so that the sediment in the water tank is evenly distributed. Observe the data displayed by the host computer, save the data after the data is stable, and obtain multiple concentration-voltage data that are consistent with the number of optical modules. Use python for data fusion to obtain this concentration-voltage relationship. Change the sediment concentration, repeat the above steps, and finally obtain different concentration-voltage relationships for the current type of sediment. Store the above relationship in the host computer. Through the above process, the same concentration-voltage relationship for multiple types of sediment can be obtained.

[0092] Furthermore, in one of the embodiments, the host computer obtains the sediment concentration of the liquid to be tested through a machine learning model.

[0093] Specifically, the device of the present invention collects a plurality of basin data with known sediment concentrations, constructs a data set of (voltage, concentration) data sets, and uses the data set to train a machine learning model to generate a concentration detection model. For the liquid to be tested, the voltage output by the device of the present invention is input into the concentration detection model to obtain the sediment concentration of the liquid to be tested.

[0094] In one embodiment, a measurement method based on the multi-data fusion sediment measurement device is provided, which specifically includes:

[0095] The preparation stage of the sediment measurement device is equivalent to the data fusion part of the above-mentioned host computer, obtaining the concentration-voltage relationship table.

[0096] After the preparation work is completed, the sediment measuring device is fixed underwater by the fixing metal block 6 .

[0097] After turning on the power of the sediment measuring device on the water, the device starts to work at the target position in the liquid to be measured (such as the target river) (the liquid to be measured will fill the area hollowed out in the center of the shell): the MCU generates a square wave signal to drive the light source in the light source module to emit an infrared light beam. After the light beam is scattered by the water body in the middle of the device, it is detected by the light intensity detection modules in all directions. These light intensity detection modules convert the optical signal into an electrical signal and process these signals on their respective circuit boards (including amplification, filtering, peak detection, etc.). The processed signal (analog signal) is converted into a digital signal (binary) by the analog-to-digital conversion chip of the signal acquisition module and is read by the MCU through the SPI protocol. After the MCU performs preliminary processing on the signal (including base conversion, smoothing filtering, etc.), it is sent to the host computer through the RS485 communication protocol. The host computer displays the concentration detection result of the target depth of the target river in real time based on the concentration-voltage relationship obtained in the preparation stage.

[0098] The present invention can carry out targeted data collection and data fusion for the target basin, realize the monitoring of the content of common sediment in the target basin at different time and space in the basin, has wide applicability, and provides assistance for the fields of water resource management, ecosystem protection, etc. in the basin where the device is deployed.

[0099] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-data fusion sediment measurement device, characterized in that: The measuring device comprises a housing, an optical module, a signal conditioning module, a signal acquisition module, a power module, a power supply module, a communication module, a main control module and a host computer; The housing includes a shell, and an upper cover and a lower cover respectively covering the upper and lower ends of the shell; the shell is a cylindrical structure with a hollow center, including a cylindrical outer cylinder and a polygonal inner cylinder nested inside the cylindrical outer cylinder, and there is a gap between the cylindrical outer cylinder and the polygonal inner cylinder for assembling other modules of the measuring device; The centers of the upper cover and the lower cover are both dug with holes, which are connected with the center of the shell and are used to contain the liquid to be tested; The optical module includes: a light source module, which is used to emit infrared light modulated by square waves to the liquid to be tested, and to form optical signals in various directions after being scattered and transmitted by the liquid to be tested, and is also used to detect the light intensity of the optical signal in one direction; A light intensity detection module, used to detect the light intensity of optical signals in multiple other directions; The signal conditioning module is used to process the voltage signal output by the optical module, including amplification, filtering and rectification; The signal acquisition module is used to convert the analog signal output by the signal conditioning module into a digital signal and transmit it to the communication module; The communication module is used to send the received data to the host computer; The host computer is used to display the received data in real time and draw a change curve, and at the same time process the received data to obtain the sediment concentration of the liquid to be tested; The power supply module is used to provide underwater power supply for the entire device; The power supply module is used to convert the voltage provided by the power supply module into the voltage required by other modules; The main control module is used to control the work and coordinated operation of other modules.

2. The multi-data fusion sediment measurement device according to claim 1, characterized in that: The light source module is installed on one side surface of the polygonal inner cylinder, and one light intensity detection module is installed on each of the other side surfaces.

3. The multi-data fusion sediment measurement device according to claim 2 is characterized in that: The light source module includes a light source installed on a first circuit board and arranged along the axial direction of the shell, i.e., the vertical direction, and a first infrared detection tube, wherein the first infrared detection tube is located at the lower side of the light source, and a partition is provided between the light source and the first infrared detection tube; the first infrared detection tube is used to collect the 0° backscattered light intensity of the emitted light of the light source after passing through the liquid to be tested, wherein 0° is the direction of the emitted light of the light source; the first circuit board is arranged in the gap and is fixedly mounted on the outer wall of the polygonal inner tube; the light source and the first infrared detection tube are respectively installed in the first through hole and the second through hole on the polygonal inner tube, and a light-transmitting mirror is sealed and assembled at one end of the first through hole and the second through hole that contacts the liquid to be tested.

4. The multi-data fusion sediment measurement device according to claim 2, characterized in that: The light intensity detection module includes a second infrared detection tube installed on a second circuit board, which is used to collect the scattered light intensity of the output light of the light source module in other directions after passing through the liquid to be tested. The second circuit board is arranged in the gap and is fixedly installed on the outer wall of the polygonal inner cylinder; the second infrared detection tube is installed in a third through hole on the polygonal inner cylinder, and the end of the third through hole that contacts the liquid to be tested is sealed and equipped with a light-transmitting mirror.

5. The multi-data fusion sediment measurement device according to claim 4 is characterized in that: Taking the direction of the emitted light of the light source as the 0° reference direction, the light intensity detection module directly opposite to the light source module collects the 180° transmitted light intensity, and the remaining light intensity detection modules respectively collect the scattered light intensity in different directions.

6. The multi-data fusion sediment measurement device according to claim 3 or 4, characterized in that: The first through hole, the second through hole and the third through hole are all provided with a thread structure, and the light-transmitting mirror is installed in the corresponding through hole through a pressing ring.

7. The multi-data fusion sediment measurement device according to claim 6, characterized in that: Plastic gaskets are provided at the installation positions of the first circuit board, the second circuit board and the polygonal inner cylinder, and rubber gaskets are used to fill the connection between the pressure ring and the polygonal inner cylinder; rubber gaskets are used to fill the connection between the upper cover, the lower cover and the shell.

8. The multi-data fusion sediment measurement device according to claim 1, characterized in that: The measuring device also includes a communication power supply through hole installed on the cylindrical outer cylinder, an internal connection terminal with a metal contact is installed inside the communication power supply through hole, and a waterproof external connection terminal and its matching waterproof cable are installed outside; the internal connection terminal is fixedly installed on the inner facade of the cylindrical outer cylinder, and the external connection terminal is fixedly installed on the outer facade of the cylindrical outer cylinder; the internal connection terminal is used to connect the power supply module and the power supply module, and is also used to connect the communication module and the host computer.

9. The multi-data fusion sediment measurement device according to claim 1, characterized in that: The signal conditioning module includes a transimpedance amplifier circuit, a high-pass filter circuit, a narrow-band pass filter circuit and a peak detection circuit connected in sequence; The transimpedance amplifier circuit is used to losslessly amplify the current signal into a voltage signal; The high-pass filter circuit is used to filter out low-frequency noise and power frequency interference; The narrow bandpass filter circuit is used to filter out high and low frequency interference signals other than the modulation center frequency; The peak detection circuit is used to convert the filtered sinusoidal signal into a DC signal.

10. The multi-data fusion sediment measurement device according to claim 1, characterized in that: The main control module is also used to perform preliminary preprocessing on the digital signal obtained by the signal acquisition module, including digital system conversion, smoothing filtering, RS485 logic level conversion, and then transmit it to the communication module.

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