Offshore Detection Point Water Sample Collection Device, Method and System

Abstract

An embodiment of the present application provides an offshore detection point water sample collection device, method and system. The device includes a fixing component; a mounting plate; a sampling component; a support component; a water storage tank; a water sample preservation component; a sensor component, which is installed on the fixing component and is used to detect the water flow velocity at the offshore detection point; a drainage component, which is installed at the bottom of the water storage tank and is used to drain the water sample in the water storage tank under the control of a control component; a control component, which is respectively connected to the sensor component, the sampling component and a cloud server, and is used to respond to a sampling instruction, determine whether to control the sampling component to perform sampling according to the water flow velocity and weather information, and when controlling the sampling component to perform sampling, control the sampling component according to the water flow velocity. The present application effectively avoids collecting water samples when submarine sediments are suspended, and improves the authenticity and accuracy of the water samples.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of marine water environment, and in particular to a device, method and system for collecting water samples at offshore detection points. Background Art

[0002] Water bodies in water areas will produce a stratification effect due to the influence of factors such as matter, water flow, and temperature. The hydrological, physical, chemical, and biological information of different water layers is different. Collecting and analyzing the differences in water bodies at different layers is an indispensable part of disciplines such as environmental science and marine science, and it is widely used in practical fields such as aquatic ecological environment evaluation and pollution accident investigation.

[0003] When collecting water samples at offshore detection points, a water sampling device is usually set up at the detection point, and the water sampling device samples the seawater by suction. However, the water depth at offshore detection points is shallow, and the weather and water flow speed at offshore detection points will affect the turbidity of the seawater. For example, excessive seawater flow speed will cause the seabed sediments to suspend, resulting in turbidity of the seawater, so that the collected seawater samples cannot accurately reflect the water environment of the offshore detection point. Summary of the invention

[0004] In view of this, the embodiments of the present application provide a device, method and system for collecting water samples at offshore detection points to solve the above-mentioned problems.

[0005] According to a first aspect of an embodiment of the present application, a device for collecting water samples at an offshore detection point is provided, the device comprising:

[0006] A fixing assembly, used for fixing the water sample collection device to the offshore detection point;

[0007] A mounting plate, the bottom of which is connected to the fixing assembly and is used to mount the sampling assembly, the supporting assembly and the water storage tank;

[0008] The sampling assembly is mounted on the mounting plate and is used to collect water samples at the offshore detection point under the control of the control assembly and transport the water samples to the water storage tank;

[0009] The support assembly is mounted on the mounting plate and is used to support the water storage tank;

[0010] The water storage tank is installed on the support assembly and is used to temporarily store water samples;

[0011] A water sample storage component is installed inside the water storage tank and is used to collect the water sample temporarily stored in the water storage tank under the control of the control component to complete the water sample collection;

[0012] A sensor assembly, mounted on the fixing assembly, for detecting the water flow velocity at the offshore detection point;

[0013] A drainage assembly, which is installed at the bottom of the water storage tank and is used to discharge the water sample in the water storage tank under the control of the control assembly;

[0014] The control component is respectively connected to the sensor component, the sampling component and the cloud server, and is used to respond to the sampling instruction, determine whether to control the sampling component to perform sampling according to the water flow speed and weather information, and when controlling the sampling component to perform sampling, control the sampling component according to the water flow speed, wherein the sampling instruction is sent by the cloud server, and the weather information is obtained by the control component in the cloud server.

[0015] In some embodiments, when the control component responds to the sampling instruction, the control component obtains the water flow velocity and compares the water flow velocity with the maximum water flow velocity;

[0016] If the water flow velocity is greater than or equal to the maximum water flow velocity, the control component determines not to perform sampling, and acquires the water flow velocity again until the water flow velocity is less than the maximum water flow velocity;

[0017] If the water flow velocity is less than the maximum water flow velocity, the control component determines the range of change of the water flow velocity within the sampling time according to the weather information, and determines whether to control the sampling component to perform sampling according to the range of change of the water flow velocity.

[0018] In some embodiments, when the control component determines whether to control the sampling component to perform sampling based on the water flow velocity variation range, the control component compares the maximum value of the water flow velocity variation range with the preset water flow variation speed. If the maximum value of the water flow velocity variation range is less than or equal to the preset water flow variation speed, the control component determines to control the sampling component to perform sampling.

[0019] In some embodiments, a solenoid valve is provided in the sampling component. When the control component controls the sampling component to perform sampling, if the control component determines that the water flow velocity is within a preset water flow velocity range, the control component determines the opening of the solenoid valve as the preset opening. If the control component determines that the water flow velocity does not belong to the preset water flow velocity range, the control component adjusts the opening of the solenoid valve according to the water flow velocity and the preset water flow velocity range, wherein the preset water flow velocity range is a water flow velocity range in which seabed sediments are not suspended, and the preset water flow velocity range includes a first water flow velocity and a second water flow velocity, the first water flow velocity is smaller than the second water flow velocity range, and the opening of the solenoid valve is negatively correlated with the water flow velocity.

[0020] In some embodiments, when the control component adjusts the opening of the solenoid valve, if the water flow rate is less than the first water flow rate, the control component adjusts the opening of the solenoid valve to the maximum opening; if the water flow rate is greater than the second water flow rate, the control component adjusts the opening of the solenoid valve according to the water flow rate, the first water flow rate and the second water flow rate.

[0021] In some embodiments, when the control component adjusts the opening of the solenoid valve according to the water flow rate, the first water flow rate, and the second water flow rate, the control component determines a first difference according to the water flow rate and the second water flow rate;

[0022] The control component determines a first sum value according to the sum of the first water flow velocity and the second water flow velocity;

[0023] The control component increases the opening of the solenoid valve according to the ratio of the first difference and the first sum.

[0024] In some embodiments, when the control component determines the preset water flow velocity range, the control component obtains geological information of the offshore detection point on the cloud server, and determines the preset water flow velocity range based on a mapping relationship between the geological information and the preset water flow velocity range.

[0025] In some embodiments, the water sample preservation component includes an installation sleeve, a water storage tank installed on the installation sleeve, a first electromagnet installed on the installation sleeve, a first magnetic part installed on the bottom of the installation sleeve, and a second electromagnet magnetically connected to the first magnetic part, wherein a water inlet is provided on the top of the water storage tank, a movable groove is provided on the bottom, and a movable piston is provided inside, a spring is installed between the first end and the second end of the movable piston, the first end is provided at the water inlet, and the first end moves upward to seal the water inlet under the action of the spring, and the second end is provided in the movable groove, and the second end moves downward to open the water inlet under the action of the magnetic force of the first electromagnet.

[0026] According to a second aspect of an embodiment of the present application, a method for collecting water samples at an offshore detection point is provided, which is applied to the device for collecting water samples at an offshore detection point according to the first aspect, and the method comprises:

[0027] The control component obtains the water flow velocity collected by the sensor component and the weather information of the offshore detection point in the cloud server in response to the received sampling instruction;

[0028] The control component determines whether to control the sampling component to perform sampling according to the water flow velocity and the weather information;

[0029] When the control component determines to control the sampling component to perform sampling, the control component controls the sampling component according to the water flow velocity.

[0030] According to a third aspect of an embodiment of the present application, a near-shore detection point water sample collection system is provided, comprising the water sample collection device described in the first aspect and a cloud server, wherein the cloud server is used to send a sampling instruction to the near-shore detection point water sample collection device.

[0031] According to the offshore detection point water sample collection device provided in the embodiment of the present application, seawater sampling can be carried out at the offshore detection point. At the same time, by setting a control component, and using the control component to determine whether to control the sampling component to perform sampling according to the water flow speed and weather information, and when controlling the sampling component to perform sampling, the sampling component is controlled according to the water flow speed, so that it can be accurately determined whether to collect water samples, so that the appropriate time can be selected for water sample collection, thereby effectively avoiding the collection of water samples when the seabed sediments are suspended, thereby improving the authenticity and accuracy of the water samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0033] Figure 1 A schematic diagram of the structure of a water sample collection device for an offshore detection point provided in an embodiment of the present application;

[0034] Figure 2 A schematic diagram of the structure of a water sample storage component provided in an embodiment of the present application;

[0035] Figure 3 A schematic diagram of a method for collecting water samples from offshore detection points provided in an embodiment of the present application;

[0036] Figure 4 A schematic diagram of the structure of a water sample collection system for offshore detection points provided in an embodiment of the present application.

[0037] Figure markings: 1-fixing component; 2-sampling component; 21-telescopic tube; 22-water pump; 23-solenoid valve; 3-mounting plate; 4-support component; 5-water storage tank; 51-sampling port; 6-water sample preservation component; 61-water inlet; 62-movable piston; 63-spring; 64-water storage tank; 65-movable tank; 66-first electromagnet; 67-mounting sleeve; 68-first magnetic part; 69-second electromagnet; 7-drainage component; 8-sensor component. DETAILED DESCRIPTION

[0038] In order to make the purpose and advantages of the present application more clearly understood, the present application is further described below in conjunction with 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.

[0039] The preferred embodiments of the present application are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present application and are not intended to limit the protection scope of the present application.

[0040] It should be noted that, in the description of the present application, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present application.

[0041] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] The specific implementation of the embodiment of the present application is further explained below in conjunction with the accompanying drawings of the embodiment of the present application.

[0043] See also Figure 1 As shown, it is a schematic diagram of the structure of the near-shore water sample collection device provided in an embodiment of the present application. The device specifically includes a fixing component 1, a sampling component 2, a mounting plate 3, a support component 4, a water storage tank 5, a water sample preservation component 6, a drainage component 7 and a sensor component 8.

[0044] The fixing component 1 is used to fix the offshore detection point water sample collection device at the offshore detection point.

[0045] The sampling assembly 2 is installed on the mounting plate 3, and the sampling assembly 2 includes a telescopic tube 21, a water pump 22 and a solenoid valve 23, wherein the telescopic tube 21 can be extended and retracted under the control of the control assembly so that the sampling assembly 2 can reach a preset collection depth, and the solenoid valve 23 can adjust the opening under the control of the control assembly.

[0046] The support assembly 4 is installed on the top of the mounting plate 3 and is used to support the water storage tank 5.

[0047] The bottom of the water storage tank 5 is connected to the sampling component 2 for temporarily storing the water sample collected by the sampling component 2 . The top of the water storage tank 5 is provided with a sampling port 51 for taking out the water sample preservation component 6 inside the water storage tank 5 .

[0048] The water sample storage component 6 is installed inside the water storage tank 5 and is used to collect the water samples temporarily stored in the water storage tank 5 under the control of the control component to complete the water sample collection.

[0049] The sensor assembly 8 is mounted on the fixing assembly 1 and is used to detect the water flow velocity at the offshore detection point.

[0050] The drainage assembly 7 is installed at the bottom of the water storage tank 5 and is used to discharge the water sample in the water storage tank 5 under the control of the control assembly.

[0051] The control component (not shown) is respectively connected to the sensor component 8, the sampling component 2 and the cloud server, and is used to respond to the sampling instruction, determine whether to control the sampling component 2 to perform sampling according to the water flow velocity and weather information, and control the sampling component 2 according to the water flow velocity when controlling the sampling component 2 to perform sampling, wherein the sampling instruction is sent by the cloud server, and the weather information is obtained by the control component in the cloud server.

[0052] Specifically, when water sample collection is required, the cloud server sends a sampling instruction to the control component. After receiving the sampling instruction, the control component responds to the sampling instruction to obtain the water flow velocity collected by the sensor component 8 and the weather information of the offshore detection point collected by the cloud server. Furthermore, the control component determines whether to control the sampling component 2 to collect water samples based on the water flow velocity and the weather information. When the control component determines to control the sampling component 2 to collect water samples, the control component controls the collection process of the sampling component 2 based on the water flow velocity collected by the sensor component 8.

[0053] The embodiment of the present application can sample seawater at the offshore detection point through the offshore detection point water sample collection device. At the same time, by setting a control component, and using the control component to determine whether to control the sampling component 2 to perform sampling according to the water flow speed and weather information, and when controlling the sampling component 2 to perform sampling, the sampling component 2 is controlled according to the water flow speed, so that it can be accurately determined whether to collect water samples, so that the appropriate time can be selected for water sample collection, thereby effectively avoiding the collection of water samples when the seabed sediments are suspended, and improving the authenticity and accuracy of the water samples.

[0054] Furthermore, when the control component of the embodiment of the present application responds to the sampling instruction, the control component first obtains the water flow velocity collected by the sensor component 8, and makes a first judgment on whether to control the sampling component 2 to perform sampling. Specifically, the control component compares the obtained water flow velocity with the maximum water flow velocity to determine whether the current water flow velocity at the offshore detection point will cause the seabed sediments to be suspended. When the control component determines that the water flow velocity is greater than or equal to the maximum water flow velocity, the control component determines that the current water flow velocity at the offshore detection point is too large, which will cause the seabed sediments to be suspended, and thus the control component determines not to control the sampling component 2 to perform water sampling. Further, the control component periodically obtains the water flow velocity collected by the sensor component 8 until the water flow velocity is less than the maximum water flow velocity. Further, the control component obtains weather information in the cloud server, and determines the range of water flow velocity changes within the sampling time based on the weather information, and makes a secondary judgment based on the range of water flow velocity changes to determine whether to control the sampling component 2 to perform sampling.

[0055] If the control component determines that the water flow velocity is less than the maximum water flow velocity, the control component determines that the water flow velocity at the offshore detection point will not cause the seabed sediment to suspend, so the control component obtains weather information in the cloud server, and determines the range of water flow velocity changes within the sampling time based on the weather information, and determines whether to control the sampling component 2 to perform sampling based on the water flow velocity change range. Specifically, the weather information of the embodiment of the present application may include wind speed and rain speed, and the control component may be pre-set with a trained BP neural network, and the weather information is input into the BP neural network to predict the range of water flow velocity changes at the offshore detection point within the sampling time, so that the control component can determine whether to control the sampling component 2 to perform sampling based on the water flow velocity change range and the preset water flow change speed.

[0056] In one example, the maximum water flow velocity in the embodiment of the present application can be determined based on the geological information of the offshore detection point. The geological information is used to reflect the sensitivity of the seabed sediments at the offshore detection point to the water flow velocity. When the seabed sediments are sensitive to the water flow velocity, the maximum water flow velocity is small. When the seabed sediments are not sensitive to the water flow velocity, the maximum water flow velocity is large. Specifically, the maximum water flow velocity is determined to be 5 m / s, 10 m / s, 20 m / s, or other values ​​based on the geological information of the offshore detection point.

[0057] In one example, the range of change of water flow velocity in the embodiment of the present application is used to reflect the stability of water flow at an offshore detection point within the sampling time.

[0058] The embodiment of the present application uses the control component to compare the water flow velocity at the offshore detection point with the maximum water flow velocity, and can accurately determine whether the water flow velocity at the offshore detection point is too large. When the water flow velocity is greater than or equal to the maximum water flow velocity, the control component determines that the seabed sediment will be suspended under the action of the water flow, thereby determining not to control the sampling component 2 for sampling, thereby effectively avoiding the influence of the suspension of seabed sediments on the water sample collection, and improving the authenticity and accuracy of the water sample collection. The control component further determines the range of water flow velocity variation through the weather information of the offshore detection point when the water flow velocity is less than the maximum water flow velocity, and can determine the degree of water flow stability at the offshore detection point during the collection time, and secondarily judge whether to perform sampling based on the range of water flow velocity variation, which can further avoid the influence of the suspension of seabed sediments on the water sample collection, and further improve the authenticity and accuracy of the water sample collection.

[0059] Furthermore, when the control component of the embodiment of the present application determines for the second time whether to control the sampling component 2 to perform sampling, the control component compares the water flow velocity variation range with the preset water flow velocity. When the maximum value of the water flow velocity variation range is less than or equal to the preset water flow variation speed, the control component determines that the water flow at the offshore detection point is stable within the collection time, and then the control component determines to control the sampling component 2 to perform sampling. When the maximum value of the water flow velocity variation range is greater than the preset water flow variation speed, the control component determines that the water flow variation speed at the offshore detection point is too fast within the collection time, and then the control component determines not to control the sampling component 2 to perform sampling.

[0060] The control component of the embodiment of the present application determines the range of changes in water flow velocity during the sampling time by using weather information, and compares the maximum value of the water flow velocity change range with the preset water flow change speed. It can accurately determine the changes in water flow at the offshore detection point during the sampling time, and then when the water flow is stable, the control component can control the sampling component 2 to perform sampling, thereby further avoiding the influence of suspended seabed sediments on water sample collection and further improving the authenticity and accuracy of water sample collection.

[0061] Furthermore, when the control component of the embodiment of the present application determines to control the sampling component 2 to perform sampling, the control component controls the opening of the solenoid valve 23 according to the water flow velocity collected by the sensor component 8, and controls the sampling process. Specifically, the control component compares the acquired water flow velocity with a preset water flow velocity range. When the control component determines that the water flow velocity at the offshore detection point is within the preset water flow velocity range, the control component controls the opening of the solenoid valve 23 to the preset opening, thereby avoiding the suspension of seabed sediments due to excessive opening of the solenoid valve 23. When the control component determines that the water flow velocity at the offshore detection point is not within the preset water flow velocity range, the control component adjusts the opening of the solenoid valve 23 according to the water flow velocity and the preset water flow velocity range. Specifically, the preset water flow velocity range of the embodiment of the present application is a water flow velocity range that prevents seabed sediments from being suspended. The preset water flow velocity range includes a first water flow velocity and a second water flow velocity. The first water flow velocity is smaller than the second water flow velocity range, and the second water flow velocity is smaller than the maximum water flow velocity. The opening of the solenoid valve 23 is negatively correlated with the water flow velocity, that is, the smaller the water flow velocity, the larger the opening of the solenoid valve 23, thereby improving the water sample collection efficiency.

[0062] In one example, the preset opening of the embodiment of the present application may be between 50% and 80% of the maximum opening, and the preset opening of the solenoid valve 23 may be determined according to actual collection requirements.

[0063] The control component of the embodiment of the present application compares the water flow velocity with a preset water flow velocity range. When the water flow velocity is within the preset water flow velocity range, the opening of the solenoid valve 23 is controlled to be within the preset water flow velocity range. When the water flow velocity is not within the preset water flow velocity range, the opening of the solenoid valve 23 is adjusted to improve the water sample collection efficiency.

[0064] Furthermore, when the control component of the embodiment of the present application adjusts the opening of the solenoid valve 23, the control component compares the water flow velocity with the first water flow velocity to determine the opening of the solenoid valve 23. When the water flow velocity is less than the first water flow velocity, the control component determines that the water flow velocity at the offshore detection point is small, and then the control component adjusts the opening of the solenoid valve 23 to the maximum value to collect water samples with maximum efficiency. When the control component determines that the water flow velocity is greater than the second water flow velocity, the control component determines that the water flow velocity at the offshore detection point is larger, and slightly increases the opening of the solenoid valve 23 according to the water flow velocity, the first water flow velocity and the second water flow velocity, thereby increasing the sampling efficiency without suspending the seabed sediments.

[0065] The control component of the embodiment of the present application can flexibly adjust the opening of the solenoid valve 23 through the water flow velocity, the first water flow velocity and the second water flow velocity, thereby improving the flexibility of the water sample collection device at the offshore detection point. At the same time, it can increase the water sample collection efficiency without suspending the seabed sediment.

[0066] Furthermore, in the embodiment of the present application, when the control component adjusts the opening of the solenoid valve 23 according to the water flow velocity, the first water flow velocity and the second water flow velocity, the control component determines a first difference according to the water flow velocity and the second water flow velocity. Further, the control component determines a first sum according to the sum of the first water flow velocity and the second water flow velocity. Finally, the control component adjusts the opening of the solenoid valve 23 according to the ratio of the first difference and the first sum, and uses the product of the ratio and the preset opening to slightly increase the opening of the solenoid valve 23, thereby increasing the sampling efficiency without suspending the seabed sediments.

[0067] Furthermore, when determining the preset water flow velocity range, the control component of the embodiment of the present application can obtain geological information of the offshore detection point in the cloud server, and determine the preset water flow velocity range based on the mapping relationship between the geological information and the preset water flow velocity range. Specifically, the control component of the embodiment of the present application can read the geological information corresponding to the location of the offshore detection point in the cloud server based on the location of the offshore detection point, and then can obtain the geological information of the offshore detection point.

[0068] Specifically, the mapping relationship between the geological information and the preset water flow velocity range in the embodiment of the present application may be pre-existing in the control component. The staff may determine the mapping relationship between the preset water flow velocity and the geological information based on their own experience, and store the mapping relationship in the control component, so that the control component can control the sampling process using the preset water flow velocity range.

[0069] For further information, see Figure 2 As shown, it is a structural schematic diagram of the water sample preservation component 6 provided in an embodiment of the present application, wherein the water sample preservation component 6 specifically includes a mounting sleeve 67, a water storage tank 64 mounted on the mounting sleeve 67, a first electromagnet 66 mounted on the mounting sleeve 67, a first magnetic member 68 mounted on the bottom of the mounting sleeve 67, and a second electromagnet 69 magnetically connected to the first magnetic member 68, wherein a water inlet 61 is arranged on the top of the water storage tank 64, a movable groove 65 is arranged on the bottom, and a movable piston 62 is arranged inside, a spring 63 is installed between the first end and the second end of the movable piston 62, the first end is arranged at the water inlet 61, and the first end moves upward to seal the water inlet 61 under the action of the spring 63, the second end is arranged in the movable groove 65, and the second end moves downward to open the water inlet 61 under the action of the magnetic force of the first electromagnet 66, and the second electromagnet 69 and the first magnetic member 68 magnetically cooperate to make the water sample preservation component 6 movable inside the water storage tank 5.

[0070] During the sampling process, the control component starts the first electromagnet 66 so that the second end of the movable piston 62 moves downward in the movable groove 65 under the action of magnetic force, opening the water inlet 61, so that the water sample in the water storage tank 5 can flow into the water storage tank 64 through the water inlet 61 to complete the water sample collection. When the water sample collection is completed, the control component turns off the first electromagnet 66, and the movable piston 62 moves upward under the action of the spring 63, so that the first end of the movable piston 62 seals the water inlet 61, so that the water sample can be stored in the water sample storage component 6.

[0071] In one example, multiple water sample preservation components 6 can be set. Each time a water sample is collected, one of the water sample preservation components 6 is used to preserve the water sample. When the water sample preservation component 6 needs to be taken out, the control component turns off the second electromagnet 69, and then the water sample preservation component 6 can be taken out through the sampling port 51.

[0072] Furthermore, when the offshore detection point water sample collection device of the embodiment of the present application is in use, the staff installs the device at the offshore detection point, and when water sample collection is required, sends a sampling instruction to the control component through the cloud server, and the control component responds to the sampling instruction to obtain the water flow speed and weather information of the offshore detection point. When the control component determines that the water flow speed is less than the maximum water flow speed, and the maximum value of the water flow speed variation range is less than or equal to the preset water flow variation speed, the control component determines the opening of the solenoid valve 23 according to the water flow speed and the preset water flow speed range, and determines the opening of the solenoid valve 23 when the solenoid valve 2 is determined. 3, the control component controls the solenoid valve 23 and the water pump 22 to open, and the seawater sample enters the water storage tank 5 through the telescopic tube 21. Further, the control component controls the first electromagnet 66 to open, so that the movable piston 62 moves downward, opens the water inlet 61, and allows the water sample to enter the water storage tank 64. When the sampling is completed, the control component controls the first electromagnet 66 to close, so that the movable piston 62 moves upward, and closes the water inlet 61. When it is necessary to take out the water sample preservation component 6, the control component controls the second electromagnet 69 to close, so that the water sample preservation component 6 can be taken out through the sampling port 51.

[0073] Furthermore, if Figure 3 As shown, the flow chart of the offshore detection point water sample collection method provided in the embodiment of the present application is applied to the offshore detection point water sample collection device in the embodiment of the present application, and the method includes:

[0074] S301, the control component obtains the water flow velocity collected by the sensor component 8 and the weather information of the offshore detection point in the cloud server in response to the received sampling instruction;

[0075] S302, the control component determines whether to control the sampling component 2 to perform sampling according to the water flow speed and weather information;

[0076] S303, when the control component determines to control the sampling component 2 to perform sampling, the control component controls the sampling component 2 according to the water flow velocity.

[0077] Furthermore, if Figure 4 As shown, it is a schematic diagram of the structure of the offshore detection point water sample collection system provided in an embodiment of the present application. The system includes the offshore detection point water sample collection device and a cloud server of the embodiment of the present application. The cloud server is used to send sampling instructions to the control component.

[0078] So far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present application.

[0079] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A water sample collection device for offshore detection points, characterized in that: The device comprises: A fixing component, used for fixing the water sample collection device at an offshore detection point; A mounting plate, the bottom of which is connected to the fixing assembly and is used to mount the sampling assembly, the supporting assembly and the water storage tank; The sampling assembly is mounted on the mounting plate and is used to collect water samples at the offshore detection point under the control of the control assembly and transport the water samples to the water storage tank; The support assembly is mounted on the mounting plate and is used to support the water storage tank; The water storage tank is installed on the support assembly and is used to temporarily store water samples; A water sample storage component is installed inside the water storage tank and is used to collect the water sample temporarily stored in the water storage tank under the control of the control component to complete the water sample collection; A sensor assembly, mounted on the fixing assembly, for detecting the water flow velocity at the offshore detection point; A drainage assembly, which is installed at the bottom of the water storage tank and is used to discharge the water sample in the water storage tank under the control of the control assembly; The control component is connected to the sensor component, the sampling component and the cloud server respectively, and is used to respond to the sampling instruction, determine whether to control the sampling component to perform sampling according to the water flow speed and weather information, and control the sampling component according to the water flow speed when controlling the sampling component to perform sampling, wherein the sampling instruction is sent by the cloud server, and the weather information is obtained by the control component in the cloud server; When the control component responds to the sampling instruction, the control component obtains the water flow velocity and compares the water flow velocity with the maximum water flow velocity; If the water flow velocity is greater than or equal to the maximum water flow velocity, the control component determines not to perform sampling, and acquires the water flow velocity again until the water flow velocity is less than the maximum water flow velocity; If the water flow velocity is less than the maximum water flow velocity value, the control component determines the water flow velocity variation range within the sampling time according to the weather information, and determines whether to control the sampling component to perform sampling according to the water flow velocity variation range; when the control component determines whether to control the sampling component to perform sampling according to the water flow velocity variation range, the control component compares the maximum value of the water flow velocity variation range with the preset water flow variation speed, and if the maximum value of the water flow velocity variation range is less than or equal to the preset water flow variation speed, the control component determines to control the sampling component to perform sampling; The control component determines the range of change of the water flow velocity within the sampling time according to the weather information, including: The weather information is input into a preset BP neural network to determine the range of change of the water flow velocity within the sampling time according to the BP neural network.

2. The offshore detection point water sample collection device according to claim 1, characterized in that: The sampling component is provided with a solenoid valve. When the control component controls the sampling component to perform sampling, if the control component determines that the water flow velocity is within a preset water flow velocity range, the control component determines the opening of the solenoid valve as the preset opening. If the control component determines that the water flow velocity is not within the preset water flow velocity range, the control component adjusts the opening of the solenoid valve according to the water flow velocity and the preset water flow velocity range, wherein the preset water flow velocity range is a water flow velocity range in which seabed sediments are not suspended, and the preset water flow velocity range includes a first water flow velocity and a second water flow velocity, the first water flow velocity is smaller than the second water flow velocity range, and the opening of the solenoid valve is negatively correlated with the water flow velocity.

3. The offshore detection point water sample collection device according to claim 2, characterized in that: When the control component adjusts the opening of the solenoid valve, if the water flow velocity is less than the first water flow velocity, the control component adjusts the opening of the solenoid valve to the maximum opening; if the water flow velocity is greater than the second water flow velocity, the control component adjusts the opening of the solenoid valve according to the water flow velocity, the first water flow velocity and the second water flow velocity.

4. The offshore detection point water sample collection device according to claim 3, characterized in that: When the control component adjusts the opening of the solenoid valve according to the water flow speed, the first water flow speed and the second water flow speed, the control component determines a first difference according to the water flow speed and the second water flow speed; The control component determines a first sum value according to the sum of the first water flow velocity and the second water flow velocity; The control component increases the opening of the solenoid valve according to a ratio of the first difference to the first sum and according to a product of the ratio and a preset opening.

5. The offshore detection point water sample collection device according to claim 2, characterized in that: When determining the preset water flow velocity range, the control component obtains geological information of the offshore detection point on the cloud server, and determines the preset water flow velocity range based on a mapping relationship between the geological information and the preset water flow velocity range.

6. The offshore detection point water sample collection device according to any one of claims 1 to 5, characterized in that: The water sample preservation component includes an installation sleeve, a water storage tank installed on the installation sleeve, a first electromagnet installed on the installation sleeve, a first magnetic part installed on the bottom of the installation sleeve, and a second electromagnet magnetically connected to the first magnetic part, wherein the water storage tank is provided with a water inlet on the top, a movable groove on the bottom, and a movable piston inside, a spring is installed between the first end and the second end of the movable piston, the first end is provided at the water inlet, and the first end moves upward to seal the water inlet under the action of the spring, and the second end is provided in the movable groove, and the second end moves downward to open the water inlet under the action of the magnetic force of the first electromagnet.

7. A method for collecting water samples at offshore detection points, characterized in that: The method applied to the offshore detection point water sample collection device described in any one of 1-6 comprises: The control component obtains the water flow velocity collected by the sensor component and the weather information of the offshore detection point in the cloud server in response to the received sampling instruction; The control component determines whether to control the sampling component to perform sampling according to the water flow velocity and the weather information; When the control component determines to control the sampling component to perform sampling, the control component controls the sampling component according to the water flow velocity; When the control component responds to the sampling instruction, the control component obtains the water flow velocity and compares the water flow velocity with the maximum water flow velocity; if the water flow velocity is greater than or equal to the maximum water flow velocity, the control component determines not to perform sampling, and obtains the water flow velocity again until the water flow velocity is less than the maximum water flow velocity; if the water flow velocity is less than the maximum water flow velocity, the control component determines the range of change of the water flow velocity within the sampling time according to the weather information, and determines whether to control the sampling component to perform sampling according to the range of change of the water flow velocity; When the control component determines whether to control the sampling component to perform sampling based on the water flow velocity variation range, the control component compares the maximum value of the water flow velocity variation range with the preset water flow variation speed. If the maximum value of the water flow velocity variation range is less than or equal to the preset water flow variation speed, the control component determines to control the sampling component to perform sampling.

8. A water sample collection system for offshore detection points, characterized in that: It comprises the offshore detection point water sample collection device and a cloud server as described in any one of claims 1 to 6, and the cloud server is used to send sampling instructions to the water sample collection device.

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