Lake water body and lakebed rock core sample collection system and control method thereof

Abstract

The invention discloses a lake water body and lakebed rock core sample collection system and a control method thereof. The method comprises the following steps: receiving lake water body depth data and oxygen concentration data collected by a basic data collection module; based on the water depth data and the oxygen concentration data, a control instruction is issued to a replaceable intelligent sample collector, and the replaceable intelligent sample collector is controlled to collect lake water in a layered mode and transmit the lake water to an oxygen-free sample storage tank for storage; transmitting a transmission instruction to a replaceable intelligent sample collector, and collecting a lakebed rock core sample. According to the invention, water body samples and rock core samples with different oxygen concentrations under different layers of a lake can be accurately obtained, the sample collection efficiency and accuracy are improved, lake water body and lakebed rock core samples are obtained under an anaerobic condition, and a support is provided for analogy research of a subsequent modern layered lake environment and an ancient marine environment.

Description

Technical Field

[0001] The present invention relates to the technical field of earth science research, and in particular to a lake water body and lake bottom core sample collection system and a control method thereof. Background Art

[0002] This section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. No statement herein is admitted to be prior art by virtue of its inclusion in this section.

[0003] Stratified lakes are a unique aquatic environment characterized by impeded exchange of bottom water with the atmosphere, resulting in different redox states between surface and bottom waters. Each layer of water has its own unique physical, chemical, and biological community characteristics and may share many similar geochemical and biological processes with the ancient ocean.

[0004] However, current methods for collecting water and lakebed core samples from stratified lakes fail to account for the changing redox conditions of stratified lakes. Relying on manual collection, they are unable to accurately collect water and lakebed core samples from lakes with varying redox conditions, compromising collection efficiency. Furthermore, existing techniques fail to account for sample oxidation during the collection process, resulting in low sample accuracy and a lack of support for subsequent comparative studies between modern stratified lake environments and ancient marine environments. Summary of the Invention

[0005] The embodiment of the present invention provides a lake water and lake bottom core sample collection system for collecting lake water and lake bottom core samples with different redox conditions under anaerobic conditions, thereby improving sample collection efficiency and accuracy and providing support for subsequent analogy studies between modern stratified lake environments and ancient marine environments. The system includes: a main control system, a replaceable intelligent sample collector, a basic data acquisition module, a traction device, an anaerobic sample storage tank, a working hull, and a miniature tower crane; wherein,

[0006] The main control system, anaerobic sample storage tank and mini tower crane are all installed on the working hull. The mini tower crane is bidirectionally connected to the replaceable intelligent sample collector, anaerobic sample storage tank and main control system through a traction device; the basic data acquisition module is located on the side of the replaceable intelligent sample collector;

[0007] The basic data acquisition module is used to monitor the water depth and oxygen concentration in real time; the replaceable intelligent sample collector is used to collect lake water and lake bottom core samples in layers according to the water depth and oxygen concentration; the main control system is used to control the replaceable intelligent sample collector to perform layered collection of lake water and lake bottom core samples, transfer the collected lake water to the anaerobic sample storage tank for storage, and store the collected lake bottom core samples directly in the replaceable intelligent sample collector.

[0008] The present invention also provides a control method for a lake water and lake bottom core sample collection system, which is used to collect lake water and lake bottom core samples with different redox conditions under anaerobic conditions, thereby improving sample collection efficiency and accuracy and providing support for subsequent analogical studies between modern stratified lake environments and ancient marine environments. The method includes:

[0009] Receive lake water depth data and oxygen concentration data collected by the basic data acquisition module;

[0010] Based on the water depth data and oxygen concentration data, control instructions are issued to the replaceable intelligent sample collector to control the replaceable intelligent sample collector to collect lake water and lake bottom core samples in layers.

[0011] An embodiment of the present invention also provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the control method of the above-mentioned lake water and lake bottom core sample collection system is implemented.

[0012] An embodiment of the present invention further provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the control method of the above-mentioned lake water body and lake bottom core sample collection system is implemented.

[0013] An embodiment of the present invention further provides a computer program product, which includes a computer program. When the computer program is executed by a processor, it implements the control method of the above-mentioned lake water body and lake bottom core sample collection system.

[0014] In an embodiment of the present invention, lake water depth data and oxygen concentration data collected by a basic data acquisition module are received; based on the water depth data and oxygen concentration data, control instructions are issued to a replaceable intelligent sample collector to control the replaceable intelligent sample collector to collect lake water in layers and transfer it to an anaerobic sample storage tank for storage; and transmission instructions are issued to the replaceable intelligent sample collector to collect lake bottom core samples. In the above process, the embodiment of the present invention receives lake water depth and oxygen concentration data in real time, and by controlling the replaceable intelligent sample collector to perform stratified sampling, it is possible to accurately obtain water samples and core samples with different oxygen concentrations at different layers of the lake, thereby improving sample collection efficiency and accuracy. By controlling the replaceable intelligent sample collector to transfer samples to the anaerobic sample storage tank, it is possible to obtain lake water and lake bottom core samples under anaerobic conditions, providing support for subsequent analogical studies between modern stratified lake environments and ancient marine environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0016] Figure 1 Schematic diagram of a lake water and lake bottom core sample collection system according to an embodiment of the present invention;

[0017] Figure 2 This is a front view of the intelligent water collector in an embodiment of the present invention;

[0018] Figure 3 This is a structural diagram of an automatic core sampler in an embodiment of the present invention;

[0019] Figure 4 This is a flow chart of a control method for a lake water and lake bottom core sample collection system according to an embodiment of the present invention;

[0020] Figure 5 Schematic diagram of a computer device in an embodiment of the present invention. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. Here, the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0022] The acquisition, storage, use, and processing of data in this application's technical solution comply with relevant national laws and regulations.

[0023] Figure 1 The schematic diagram of the lake water and lake bottom core sample collection system according to an embodiment of the present invention includes: a main control system, a replaceable intelligent sample collector, a basic data acquisition module, a traction device, an oxygen-free sample storage tank, a working hull, and a miniature tower crane; wherein,

[0024] The main control system, anaerobic sample storage tank and mini tower crane are all installed on the working hull. The mini tower crane is bidirectionally connected to the replaceable intelligent sample collector, anaerobic sample storage tank and main control system through a traction device; the basic data acquisition module is located on the side of the replaceable intelligent sample collector;

[0025] The basic data acquisition module is used to monitor the water depth and oxygen concentration in real time; the replaceable intelligent sample collector is used to collect lake water and lake bottom core samples in layers according to the water depth and oxygen concentration; the main control system is used to control the replaceable intelligent sample collector to perform layered collection of lake water and lake bottom core samples, transfer the collected lake water to the anaerobic sample storage tank for storage, and store the collected lake bottom core samples directly in the replaceable intelligent sample collector.

[0026] In one embodiment, the basic data collection module is further configured to:

[0027] Based on the monitored water depth and oxygen concentration, the lake water is divided into oxidation layer, chemotropic layer and anoxic layer.

[0028] In a specific embodiment, a basic data acquisition module is used to monitor water depth, oxygen concentration, temperature, and conductivity in real time. A built-in water sampling pipeline and data transmission cable are included in the traction device. The water sampling pipeline transports the collected water sample to an oxygen-free sample storage tank, while the data transmission cable enables two-way communication between the main control system, the basic data acquisition module, and the replaceable intelligent sample collector.

[0029] In one embodiment, the main control system includes: a central computer and a data processing center; wherein,

[0030] The central computer communicates with the basic data acquisition module and the replaceable intelligent sample collector through the data transmission cable built into the traction device. The central computer is used to control the mini tower crane to perform lifting operations;

[0031] The data processing center is used to receive and analyze the monitoring data from the basic data acquisition module.

[0032] In a specific embodiment, the main control system is also used to control the collection of samples by the intelligent sample collector, intelligently allocate sampling points in real time based on water depth and oxygen concentration, and determine whether the depth of the sampled core and the sampled water meet the sample requirements. The water depth and oxygen concentration are related to the lake water layer, which is divided into the oxidation layer (high oxygen zone: the depth section with high oxygen concentration), the transformation layer (low oxygen zone: the depth section where the oxygen concentration rapidly decreases to below the detection value), and the anoxic layer (the oxygen-free zone: the depth section where the oxygen concentration is below the detection value). The main control system controls the hydraulic drive device and the miniature tower crane to fully and accurately insert the hydraulically driven collection tube into the lake bottom to collect cores, thereby accurately obtaining lake water and lake bottom core samples under different redox conditions (such as high oxygen zone, low oxygen zone, and anoxic zone), solving the problem of inaccurate sampling of target layers caused by hull drift or environmental fluctuations.

[0033] In one embodiment, the replaceable intelligent sample collector includes an intelligent water collector and an automatic core sampler; wherein,

[0034] The intelligent water collector includes an anaerobic water collection module, a water tank counterweight, and a sample filtration module. The anaerobic water collection module is used to collect water samples from the oxidation layer, chemisorption layer, and anoxic layer in layers. The water tank counterweight is used to adjust the sampling depth. The sample filtration module is connected to the water sample collection pipeline built into the traction device to filter impurities in the water sample.

[0035] The automatic core sampler includes a hydraulic drive module and a core collection module; the hydraulic drive module is used to push the core collection module into the lake bottom core; the core collection module is used to collect core samples of the oxidation layer, chemical transformation layer and anoxic layer in layers through multiple hydraulically driven collection tubes.

[0036] In one embodiment, the intelligent water collector further includes:

[0037] The acquisition control center is used to locate the sampling points of lake water samples based on the water depth and oxygen concentration measured by the basic data acquisition module.

[0038] Figure 2 This is a front view of the intelligent water collector in an embodiment of the present invention. In a specific embodiment, the intelligent water collector includes: an oxygen-free water collection module, a measurement sensor module, a collection control center, a water tank counterweight, and a sample filtration module; wherein,

[0039] The anaerobic water collection module is at the bottom of the intelligent water collector, the measurement sensor module is installed on the side of the anaerobic water collection module, the collection control center is above the measurement sensor module, the water tank counterweight is installed above the collection control center, and the sample filtration module is located at the upper right end of the water tank counterweight and is connected to the water sample collection pipeline;

[0040] The oxygen-free water collection module is used to collect water samples in layers. The measurement sensor module measures the oxygen concentration, temperature, conductivity and water depth of the water. The collection control center controls water sampling, locates sampling points and formulates sampling plans with the above-mentioned main control system based on the real-time data of the measurement sensor module. The water tank counterweight is used to adjust the sampling depth. The sample filtration module includes a filter net to filter impurities in the water. Figure 2 The connector of the intelligent water collector is used to connect the traction device, the collection control center of the intelligent water collector is used to process the relevant data in the collected lake water samples, and the battery is used to provide power for the water pump in the intelligent water collector.

[0041] In one embodiment, the automatic core sampler further comprises: a smart core module and a mud-water guide tube, wherein a plurality of mud-water guide tubes are provided on the outside of the smart core module;

[0042] The muddy water guide pipe is used to discharge the water on the upper part of the hydraulically driven collection pipe during the collection process;

[0043] The smart core module is used to monitor the length of core samples and the amount of oxygen on the surface of core samples.

[0044] Figure 3 This is a structural diagram of an automatic core sampler in an embodiment of the present invention. In a specific embodiment, the automatic core sampler includes:

[0045] Core collection module, hydraulic drive module, support platform, mud-water guide tube, smart core module, special flange, end cover and data transmission cable; the data transmission cable is used to achieve two-way communication between the main control system and the automatic core sampler.

[0046] The core collection module is located at the bottom of the automatic core sampler, and its upper end is connected to the hydraulic drive device. The hydraulic drive device is mounted on a support platform with a sensor placed in the center. The support platform is used to study core collection, its drive device, and the smart core module. The smart core module is mounted above the support platform, and a special flange is located above the smart core module and connected to the end cap.

[0047] The core collection module is used to collect lake bottom cores, the smart core module is used to monitor the length of the collected cores and the amount of oxygen on the sediment surface, the hydraulic drive module is used to push the core collection module into the lake bottom core, and a special flange is used to install the smart core module and serve as a replaceable joint to connect to the micro crane; among them, the hydraulic drive module uses hydraulic drive technology to replace traditional vibration sampling, avoiding the physical disturbance of the core sample by high-frequency vibration, ensuring that the water layer inside the collected core (such as the oxidation layer, chemical change layer, and anoxic layer) maintains the original layered structure, and preventing data distortion caused by sample mixing.

[0048] The outer ring of the special flange has 6 marked bolt holes evenly distributed to achieve the replaceable function;

[0049] The core collection module utilizes six to eight hydraulically driven collection tubes equipped with one-way sealing plugs. The extension length of each tube is automatically adjusted to accommodate the different rock formations being collected. This stable insertion of the hydraulically driven collection tubes, combined with the anaerobic storage technology of the sample storage tanks, completely isolates the sample from oxygen, ensuring the chemical integrity of deepwater samples (such as anoxic layer cores) and providing highly reliable data support for paleo-oceanographic environmental analogue studies.

[0050] The present invention also provides a control method for a lake water and lake bottom core sample collection system, as described in the following embodiments. Because the principles underlying this method are similar to those of the lake water and lake bottom core sample collection system, the implementation of this device can be referenced to the implementation of the lake water and lake bottom core sample collection system, and any repetitions will not be repeated.

[0051] Figure 4This is a flow chart of a control method for a lake water and lake bottom core sample collection system according to an embodiment of the present invention. The method includes:

[0052] Step 401, receiving lake water depth data and oxygen concentration data collected by a basic data collection module;

[0053] Step 402: Based on the water depth data and the oxygen concentration data, a control instruction is issued to the replaceable intelligent sample collector to control the replaceable intelligent sample collector to collect lake water and lake bottom core samples in layers;

[0054] Step 403 : issuing a transmission instruction to the replaceable intelligent sample collector to transmit the lake water and lake bottom core samples collected by the replaceable intelligent sample collector to an anaerobic sample storage tank for storage.

[0055] An embodiment of the present invention further provides a computer device, Figure 5 This is a schematic diagram of a computer device in an embodiment of the present invention. The computer device 500 includes a memory 510, a processor 520, and a computer program 530 stored in the memory 510 and executable on the processor 520. When the processor 520 executes the computer program 530, the control method of the lake water and lake bottom core sample collection system is implemented.

[0056] An embodiment of the present invention further provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the control method of the above-mentioned lake water body and lake bottom core sample collection system is implemented.

[0057] An embodiment of the present invention further provides a computer program product, which includes a computer program. When the computer program is executed by a processor, it implements a control method for the upper lake water body and lake bottom core sample collection system.

[0058] In an embodiment of the present invention, lake water depth data and oxygen concentration data collected by a basic data collection module are received; based on the water depth data and oxygen concentration data, control instructions are issued to a replaceable intelligent sample collector, controlling the replaceable intelligent sample collector to collect lake water and lake bottom core samples in layers; and transmission instructions are issued to the replaceable intelligent sample collector to transfer the lake water and lake bottom core samples collected by the replaceable intelligent sample collector to an anaerobic sample storage tank for storage. In the above process, the embodiment of the present invention receives lake water depth and oxygen concentration data in real time, and by controlling the replaceable intelligent sample collector to perform stratified sampling, it is possible to accurately obtain water samples and core samples with different oxygen concentrations at different lake layers, thereby improving sample collection efficiency and accuracy. By controlling the replaceable intelligent sample collector to transfer samples to the anaerobic sample storage tank, lake water and lake bottom core samples can be obtained under anaerobic conditions, providing support for subsequent analogical studies between modern stratified lake environments and ancient marine environments.

[0059] It will be understood by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Thus, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0060] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0061] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0062] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0063] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lake water and lake bottom core sample collection system, characterized in that: include: Main control system, replaceable intelligent sample collector, basic data acquisition module, traction device, oxygen-free sample storage tank, working hull and mini tower crane; among them, The main control system, anaerobic sample storage tank and mini tower crane are all installed on the working hull. The mini tower crane is bidirectionally connected to the replaceable intelligent sample collector, anaerobic sample storage tank and main control system through a traction device; the basic data acquisition module is located on the side of the replaceable intelligent sample collector; The basic data acquisition module is used to monitor the water depth and oxygen concentration in real time; the replaceable intelligent sample collector is used to collect lake water and lake bottom core samples in layers according to the water depth and oxygen concentration; the main control system is used to control the replaceable intelligent sample collector: to perform layered collection of lake water and lake bottom core samples, to transfer the collected lake water to the anaerobic sample storage tank for storage, and to store the collected lake bottom core samples directly in the replaceable intelligent sample collector.

2. The system according to claim 1, wherein The basic data acquisition module is also used for: Based on the monitored water depth and oxygen concentration, the lake water is divided into oxidation layer, chemotropic layer and anoxic layer.

3. The system according to claim 2, wherein: The replaceable intelligent sample collector includes an intelligent water collector and an automatic core sampler; The intelligent water collector includes an anaerobic water collection module, a water tank counterweight, and a sample filtration module. The anaerobic water collection module is used to collect water samples from the oxidation layer, chemisorption layer, and anoxic layer in layers. The water tank counterweight is used to adjust the sampling depth. The sample filtration module is connected to the water sample collection pipeline built into the traction device to filter impurities in the water sample. The automatic core sampler includes a hydraulic drive module and a core collection module; the hydraulic drive module is used to push the core collection module into the lake bottom core; the core collection module is used to collect core samples of the oxidation layer, chemical transformation layer and anoxic layer in layers through multiple hydraulically driven collection tubes.

4. The system according to claim 3, wherein: The automatic core sampler also includes: a smart core module and a mud-water guide tube. A plurality of mud-water guide tubes are provided on the outside of the smart core module. The muddy water guide pipe is used to discharge the water on the upper part of the hydraulically driven collection pipe during the collection process; The smart core module is used to monitor the length of core samples and the amount of oxygen on the surface of core samples.

5. The system according to claim 3, wherein: The intelligent water collector also includes: The acquisition control center is used to locate the sampling points of lake water samples based on the water depth and oxygen concentration measured by the basic data acquisition module.

6. The system according to claim 1, wherein: The main control system includes: central computer and data processing center; among them, The central computer communicates with the basic data acquisition module and the replaceable intelligent sample collector through the data transmission cable built into the traction device. The central computer is used to control the mini tower crane to perform lifting operations; The data processing center is used to receive and analyze the monitoring data from the basic data acquisition module.

7. A control method for the lake water and lake bottom core sample collection system according to any one of claims 1 to 6, characterized in that: Applied to main control systems, including: Receive lake water depth data and oxygen concentration data collected by the basic data acquisition module; Based on the water depth data and oxygen concentration data, control instructions are issued to the replaceable intelligent sample collector to control the replaceable intelligent sample collector to collect lake water in layers and transfer it to the anaerobic sample storage tank for storage; Send transmission instructions to the replaceable intelligent sample collector to collect lake bottom core samples.

8. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the method according to claim 7 is implemented.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method according to claim 7 is implemented.

10. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the method according to claim 7 is implemented.

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