A multi-medium large-diameter fidelity sampling device and a sampling method

Abstract

The application discloses a multi-medium large-diameter fidelity sampling device and a sampling method, and relates to the deep sea sampling field.The device comprises a methane concentration detection array, which is used for detecting the methane leakage condition of a target sampling site and generating methane detection information; a first control module, which is used for determining the SMTZ depth information at the target sampling site according to the methane detection information, and is also used for determining a first control instruction according to the SMTZ depth information; and a sample collection module, which is used for pressure-maintaining collection in response to the first control instruction, is also used for determining sample thickness information, and releases the sample and / or secondary sampling according to a second control instruction determined by the first control module in response to the sample thickness information.Compared with the prior art, the application can realize intelligent automatic precise sampling based on the environmental specificity of different sampling sites, and can collect deep sea samples with pressure maintenance, multi-medium and large volume.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of deep-sea sampling, and more particularly to a multi-medium large-diameter fidelity sampling device and a sampling method. BACKGROUND

[0002] Deep-sea areas account for 92.4% of the ocean area, and are the main part of the ocean. Deep sea has special properties such as extremely high pressure, low / high temperature, high salinity, and strong reduction. It has rich resources such as oil and gas reservoirs, biology, and mineral resources. However, due to the difficulty of entering the deep sea, the current understanding of the deep sea is still very limited due to the restriction of deep-sea equipment technology. Among them, the deep-sea shallow sediment-seawater interface is an important area of material transport and exchange in the ocean, and is also the main active area of deep-sea biology. It is a key carrier for analyzing material migration and transformation and extreme ecological system evolution. In-depth study of the deep-sea shallow multi-medium environment is of great significance to clarify the process of ocean material migration and circulation and reveal the role of deep-sea biology in it. Especially in the seabed area rich in oil and gas resources, the gaseous methane produced after the decomposition of natural gas hydrate migrates along the fissure to the seabed and spills, providing nutrients for chemoautotrophic microorganisms, and nurturing special seabed ecosystems such as cold springs and hydrothermal vents.

[0003] In the cold spring, hydrothermal vent and other oil and gas resource-rich areas, the upward migration of carbon-containing hydrocarbon (such as methane) fluid caused by the decomposition of natural gas hydrate provides nutrients for the special seabed ecosystem on the one hand, and on the other hand, the leaked methane migrates upward through the sediment-seawater interface into seawater and eventually may migrate into the atmosphere. The utilization and transformation of leaked methane by methane-oxidizing microorganisms in the methane seepage zone sediment can effectively prevent the upward migration of methane, which is called the "barrier" of methane leakage. Microorganisms convert methane into bicarbonate through the AOM (anaerobic oxidation of methane) process, and ultimately convert it into carbonate rock, which seals carbon at the seabed. The AOM reaction is one of the most important basic reactions of material transformation and circulation in oil and gas seepage areas. The main area where the reaction occurs is called SMTZ (sulfate-methane transition zone). With different methane seepage intensities, the SMTZ has different depths. The greater the methane seepage intensity, the shallower the SMTZ interface. Precise positioning and in-situ sampling of the SMTZ area are necessary means for studying the related environmental and ecological basic scientific problems of the AOM reaction and the cold spring front basic scientific problems. However, the current deep-sea sediment sampling equipment has low precision, small sampling volume, and is easily disturbed during sampling. After sampling, only simple detection of related components and microbial community composition can be carried out, and subsequent spatial distribution research on the change of environmental factors and microbial community composition and abundance cannot be carried out. SUMMARY

[0004] The present application provides a multi-medium large-diameter fidelity sampling device to overcome the defects of low sampling precision and small sampling volume of the prior art.

[0005] To solve the above technical problems, the technical solutions of the present application are as follows:

[0006] In a first aspect, a multi-medium large-diameter fidelity sampling device comprises:

[0007] A methane concentration detection array is configured to detect methane leakage at a target sampling site and generate methane detection information.

[0008] A first control module is configured to determine SMTZ depth information at the target sampling site based on the methane detection information, and determine a first control instruction based on the SMTZ depth information.

[0009] A sample collection module is configured to perform pressure-maintained collection at the target sampling site in response to the first control instruction, determine sample thickness information about the collected sample, and release the sample and / or perform secondary sampling based on a second control instruction determined by the first control module in response to the sample thickness information.

[0010] In a second aspect, a multi-medium large-diameter fidelity sampling method comprises the steps of using the device of the first aspect, and comprises:

[0011] The methane concentration detection array is inserted into the sediment at the target sampling site to obtain methane leakage at different depths at the target sampling site and generate methane detection information.

[0012] The first control module determines SMTZ depth information in response to the methane detection information, wherein the SMTZ depth information is used to indicate the SMTZ depth region.

[0013] The first control module generates a first control instruction based on the SMTZ depth information and sends it to the sample collection module, wherein the first control instruction is used to instruct the sample collection module to perform pressure-maintained collection at the target sampling site.

[0014] The sample collection module performs pressure-maintained collection in response to the first control instruction and determines sample thickness information about the collected sample.

[0015] The first control module determines whether to generate a second control instruction based on the sample thickness information, wherein the second control instruction is used to instruct the sample collection module to release the sample and / or perform secondary sampling.

[0016] In a third aspect, a computer program product comprises computer programs or computer executable instructions, which, when executed by a processor, implement the method of the first aspect.

[0017] Compared with the prior art, the beneficial effects of the technical scheme of the present application are:

[0018] The present application provides a multi-medium large-diameter fidelity sampling device, comprising a methane concentration detection array, a first control module and a sample collection module; in the process of deep-sea sediment sampling, the methane leakage of the target sampling site is detected by the methane concentration detection array, and the SMTZ depth information in the sediment is determined accordingly, the sample collection module is controlled by the first control module to collect the sediment and detect the thickness information of the collected sample in real time to judge the sampling quality, and the sample can be released and / or resampled as needed. Compared with the prior art, the present application can realize intelligent automatic precise sampling based on the environmental specificity of different sampling sites, significantly improve the operation precision, and collect deep-sea samples with pressure preservation, multi-medium and large volume. At the same time, through real-time monitoring of the sample thickness information, it can quickly decide whether to release the sample or resample during the sampling process, saving manpower and material resources and reducing the cost of deep-sea sampling. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the multi-medium large-diameter fidelity sampling device in embodiment 1 of the present application;

[0020] Figure 2 It is another structural schematic diagram of the multi-medium large-diameter fidelity sampling device in embodiment 1 of the present application;

[0021] Figure 3 It is a structural schematic diagram of the second control module in embodiment 1 of the present application;

[0022] Figure 4 It is a structural schematic diagram of the methane detection module in embodiment 1 of the present application;

[0023] Figure 5 It is a flowchart of the multi-medium large-diameter fidelity sampling method in embodiment 2 of the present application;

[0024] Figure 6 It is another flowchart of the multi-medium large-diameter fidelity sampling method in embodiment 2 of the present application;

[0025] Among them, the mark explanation is as follows:

[0026] 1-device frame; 2-second control module; 21-actuator; 22-power supply compartment; 31-energy storage cavity; 32-sonar; 33-sampling cavity; 34-third control module; 35-pressure preservation cylinder; 4-methane concentration detection array; 41-third control module; 42-methane sensor; 43-protection device; 5-first control module. DETAILED DESCRIPTION

[0027] The terms "first", "second", and the like, as used in the specification and in the claims, do not imply a quantity or order but are used to distinguish one element from another, and are not necessarily used consistently in various aspects. It will be understood that the terms so used are interchangeable under appropriate circumstances. The terms "comprise", "have" and any variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "determine" broadly encompasses a wide variety of actions and, therefore, can include "calculate", "compute", "process", "derive", "investigate", "look up" (e.g., in a table, a database or another data structure), "access" (e.g., access data in a memory), and the like. The term "determine" can also include receive (e.g., receive information), access (e.g., access data in a memory), and the like. The term "determine" can also include resolve, select, choose, and the like. Relevant definitions of other terms are given throughout the specification.

[0028] It should be noted that when an element is referred to as being "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intervening element. Also, "connected" in the following embodiments, if there is a transmission of electrical signals or data between the connected objects, should be understood as "electrically connected", "communicatively connected", and the like.

[0029] The accompanying drawings are only used for illustrative purposes, and should not be understood as limiting the patent;

[0030] In order to better illustrate the embodiments, some components in the drawings can be omitted, enlarged or reduced, and do not represent the actual size of the product;

[0031] For those skilled in the art, it is understandable that some well-known structures in the drawings and their descriptions can be omitted.

[0032] The technical solutions of the present application will be further described below in combination with the drawings and embodiments.

[0033] Embodiment 1

[0034] As the background art, the accurate positioning and in-situ sampling of SMTZ area are necessary means for studying AOM reaction related environmental ecological basic scientific problems and cold spring front basic scientific problems. However, the current deep sea sediment sampling equipment does not have the function of automatic control identification, and the precision is low during the sampling process. The intensity of methane seepage in deep sea environment, especially in methane seepage area, has strong spatial heterogeneity, and the existing sampling technology is difficult to accurately collect sediments containing SMTZ area. In addition, due to the particularity of deep sea environment, it is extremely important to maintain the temperature and pressure of the in-situ environment and avoid serious distortion of research results caused by changes in environmental conditions in deep sea research. The physical and chemical properties of sediments and seawater change when they are separated from the in-situ environment, making it difficult to truly reflect the deep sea in-situ geological and geochemical environment, and bringing challenges to the correct understanding of environmental properties. Non-pressure sampling can easily cause loss of gas phase components, oxidation state changes and decomposition of organic components. More importantly, environmental conditions such as temperature and pressure have important effects on the community composition and abundance structure of marine organisms, especially microorganisms. After leaving the in-situ environment, even a short period of pressure and temperature loss, the physiological and ecological characteristics of deep sea organisms will be significantly different from those in the deep sea in-situ environment, and the pressure relief process can even directly cause the death of some microorganisms.

[0035] The diameter of the current deep sea sediment sampler is basically below 10 cm, generally around 6 cm. Small-scale and small-volume sediment pressure sampling technology is difficult to achieve, but there are obvious technical defects in actual scientific research. The small sampling volume is easy to be disturbed during the sampling process; after sampling, only simple detection of related components and microbial community composition can be carried out, and subsequent spatial distribution research of environmental factors and microbial community composition and abundance changes cannot be carried out. It should be emphasized that large-scale and large-volume sampling can better simulate the real in-situ environment, and larger scale is also an important method to increase the reduction degree and authenticity of indoor simulation experiments. The large-volume deep sea sampling technology in the prior art cannot carry out pressure sampling, and large-diameter sediment pressure sampling has not yet achieved a breakthrough, and needs to be filled in. In addition, deep sea environment is a multi-phase, multi-component and strongly coupled coexistence environment, and single-phase sampling and single-phase simulation of deep sea environment cannot explain the multi-layer interaction process. Deep sea multi-medium (sediment, water, gas, and organisms) in-situ sampling technology is a key technical requirement for deep understanding of the mechanism of deep sea multi-interface environment.

[0036] The inventor finds that the current various deep-sea sediment samplers have great randomness, cannot realize precise targeted sampling of different methane leakage intensity areas according to the specificity of the sampling site, and are difficult to balance pressure maintenance and large-scale, large-volume multi-medium sampling. Non-pressure-maintained sampling will cause distortion of environmental indicators and changes in biological state, seriously affecting the authenticity of subsequent scientific research. Although small-scale, small-volume pressure-maintained sampling can maintain the stability of environmental indicators and biological state, the small scale limits the related research on the spatial distribution of related indicators in subsequent indoor simulation experiments, and the large proportion of disturbed part in the total sample during sampling will also cause the research results to be distorted to varying degrees. In addition, the existing sampling device is difficult to judge the sampling quality in real time after sampling is completed, and if the sampling effect is found to be poor in subsequent research, a lot of manpower and material resources will be wasted.

[0037] To solve the above problems, a multi-medium large-diameter fidelity sampling device is provided in the embodiment, which comprises Figure 1 , including:

[0038] A methane concentration detection array is configured to detect the methane leakage condition of the target sampling site and generate methane detection information.

[0039] A first control module is configured to determine the SMTZ depth information at the target sampling site according to the methane detection information, and to determine a first control instruction according to the SMTZ depth information.

[0040] A sample collection module is configured to perform pressure-maintained collection at the target sampling site in response to the first control instruction, to determine sample thickness information about the collected sample, and to release the sample and / or perform secondary sampling according to a second control instruction determined by the first control module in response to the sample thickness information.

[0041] The sampling device provided in the embodiment can realize precise collection of multi-medium large-volume fidelity samples in special deep-sea areas. During sampling, the methane concentration detection array is used to pre-detect the methane leakage condition of the target sampling site and determine the real AOM reaction condition in the sediment (such as SMTZ depth information), so as to facilitate subsequent precise collection of multi-medium samples covering the SMTZ area. The sample collection module is used to detect the thickness information (such as the thickness of collected seawater and sediment) of the sample in real time, and the first control module is used to judge the sampling quality based on the sample thickness information, so as to realize on-demand release of the sample and / or secondary sampling. Compared with the prior art, the device described in the embodiment can realize intelligent automatic precise sampling based on the environmental specificity of different sampling sites, greatly improve the operation accuracy, and balance pressure maintenance, multi-medium, and large-volume collection of deep-sea samples. At the same time, by monitoring the sample thickness information in real time, it can be quickly decided whether to release the sample or perform secondary sampling during sampling, thereby saving manpower and material resources and reducing the cost of deep-sea sampling.

[0042] It should be understood by those skilled in the art that the first control module and the methane concentration detection array can be connected by wired connection or wireless connection, and the first control module and the sample collection module can be connected by wired connection or wireless connection, which can be set by those skilled in the art according to the actual deep sea environment.

[0043] In some preferred embodiments, referring to Figure 2 , the sample collection device comprises:

[0044] a sampling cavity for sampling operation at the target sampling site and storing the collected sample;

[0045] a sonar arranged in the sampling cavity for determining whether the sample is successfully collected in the sampling cavity and the sample thickness information about the sample;

[0046] an energy storage cavity for injecting pressure and connected to the sampling cavity through a piston to maintain the pressure of the sampling cavity;

[0047] a pressure maintaining module for performing pressure maintaining operation with the sampling cavity after the sampling operation of the sampling cavity is completed;

[0048] a second control module for receiving the first control instruction and / or the second control instruction, controlling the sampling cavity to perform sampling operation and / or release operation according to the first control instruction and / or the second control instruction, and generating a third control instruction to control the pressure maintaining module to perform the pressure maintaining operation after the sampling operation is completed.

[0049] It should be noted that the sampling cavity in the embodiment is a large-diameter sampling cavity, and the methane concentration detection array, the sonar and the pressure maintaining module are used to ensure the reliability after the sampling diameter is increased.

[0050] It should be emphasized that if the prior art directly increases the sampling diameter, the large-diameter sampling is more difficult than the small-diameter sampling technology. Since the environment characteristics of the sampling point cannot be directly judged for targeted sampling, the state of the collected sample cannot be judged, sampling failure cannot be timely identified, the collected sample does not meet the requirements, human and material resources are wasted, and ideal experimental results cannot be obtained. The embodiment increases the methane concentration detection array to accurately obtain relevant environmental information before sampling starts, ensures that sampling is more targeted, and obtains the true state of the sampled sample through the relevant module (such as the sonar) after sampling is completed, and then judges whether the sampling meets the requirements, so that the sample release and secondary sampling are directly performed on the seabed according to the actual situation, human and material resources are saved, and the required sample for experiments is ensured to be obtained.

[0051] In some embodiments, the inner diameter of the sampling cavity is 300 mm.

[0052] In some embodiments, the inner diameter of the sampling cavity is 500 mm.

[0053] It should be understood by those skilled in the art that the sampling cavity in the embodiment is connected with a transmission structure for realizing the movement of the sampling cavity, and the second control module can control the movement of the sampling cavity by controlling the working state of the transmission structure. As a non-limiting example, the transmission structure can be a stepper motor, a screw transmission mechanism, a hydraulic cylinder transmission mechanism, an electric cylinder transmission mechanism, etc.

[0054] In some optional embodiments, referring to Figure 3 , the second control module comprises an actuator and a power supply compartment. The power supply compartment supplies power to the actuator; the actuator is used to receive instructions (i.e. the first control instructions or the second control instructions) from the first control module to control the sampling cavity to perform sampling operation or release operation, and is also used to generate third control instructions to control the pressure maintaining module to perform the pressure maintaining operation after the sampling operation is completed.

[0055] In some optional embodiments, the sample collection device further comprises a device frame, and the second control module, the sampling cavity, the energy storage cavity and the pressure maintaining module are arranged in the device frame.

[0056] In some optional embodiments, the pressure maintaining module comprises a pressure maintaining cylinder and a third control module; wherein,

[0057] One end of the pressure maintaining cylinder is provided with an opening for inserting the sampling cavity;

[0058] The third control module is used to control the pressure maintaining cylinder to move to the same axis as the sampling cavity in response to the third control instructions, and make the opening of the pressure maintaining cylinder face the sampling cavity, and after the sampling cavity is placed into the pressure maintaining cylinder through the opening, make the pressure maintaining cylinder and the sampling cavity butt joint and seal, to complete the pressure maintaining operation.

[0059] In some optional embodiments, the pressure maintaining module is a pressure maintaining cylinder, and the pressure maintaining cylinder is directly controlled by the second control module.

[0060] It can be understood that the pressure maintaining cylinder in the embodiment can also move by connecting a transmission structure.

[0061] In some optional embodiments, the second control instructions determined by the first control module in response to the sample thickness information to release the sample and / or secondary sampling comprise:

[0062] The first control module judges whether the collected sample meets preset requirements by using the sample thickness information acquired by the sonar. If yes, no operation is performed. Otherwise, a second control instruction is generated to instruct the sampling cavity to release the currently collected sample and / or to perform sampling operation again.

[0063] The second control module controls the sampling cavity to complete the release operation and / or the sampling operation in response to the second control instruction.

[0064] More specifically, the preset requirements can be that the sample thickness is not less than the SMTZ depth, that is, to ensure that the collected sample contains the sediment / seawater of the SMTZ region.

[0065] In some preferred embodiments, the methane detection information includes detection depth information and methane concentration information; and the SMTZ depth information at the target sampling site is determined according to the methane detection information, including:

[0066] The detection depth information and the corresponding methane concentration information from at least three methane detection modules are linearly fitted to obtain the depth at which the methane concentration is zero, which is the SMTZ region where the AOM reaction is most intense, denoted as the SMTZ depth information.

[0067] Those skilled in the art should understand that in the methane leakage area, the upward leaking methane is consumed by the AOM reaction in the sediment, and the concentration decreases with the depth. In this preferred embodiment, the first control module detects the depth information H and the methane concentration information C at the site according to the collected data, and performs linear fitting to calculate the depth at which the methane concentration is zero, which is the SMTZ region where the AOM reaction is most intense.

[0068] In some specific implementations, a single methane detection module measures the methane concentration in the sediment at H1 depth as C1, at H2 depth as C2, and at H3 depth as C3. The three points are fitted to obtain the accurate SMTZ depth of the sampling site.

[0069] In some optional embodiments, the determination of the SMTZ depth information at the target sampling site further includes:

[0070] The plurality of SMTZ depth information from the plurality of methane detection modules is averaged, and the obtained average value is taken as the final SMTZ depth information.

[0071] In some embodiments, four methane detection modules are arranged around the sampling cavity, and four SMTZ depth information can be obtained. Taking the average of the four SMTZ depth information can avoid the deviation of the obtained results caused by accidental errors of the methane concentration test, thereby affecting the sampling quality.

[0072] In some optional embodiments, the methane concentration detection array comprises a plurality of methane detection modules distributed around the sample collection module; wherein, referring to Figure 4 Each of the methane detection modules comprises:

[0073] a methane sensor for collecting the methane concentration information in the sediment at the target sampling site;

[0074] a third control module for controlling the methane sensor to probe into the sediment to obtain the methane concentration information in the sediment at different depths; and for sending the methane concentration information and the corresponding detection depth information to the first control module;

[0075] a protection device for accommodating the third control module and the methane sensor.

[0076] Embodiment 2

[0077] A multi-medium large-diameter fidelity sampling method, using the device provided in Embodiment 1, referring to Figure 5 , comprising:

[0078] allowing the methane concentration detection array to probe into the sediment at the target sampling site to obtain the methane leakage at different depths at the target sampling site, and to generate methane detection information;

[0079] allowing the first control module to determine SMTZ depth information in response to the methane detection information; wherein, the SMTZ depth information is used to indicate the SMTZ depth region;

[0080] allowing the first control module to generate a first control instruction according to the SMTZ depth information and send it to the sample collection module; wherein, the first control instruction is used to instruct the sample collection module to perform pressure-maintaining collection at the target sampling site;

[0081] the sample collection module performs pressure-maintaining collection in response to the first control instruction, and determines sample thickness information about the collected sample;

[0082] allowing the first control module to determine whether to generate a second control instruction according to the sample thickness information; wherein, the second control instruction is used to instruct the sample collection module to release the sample and / or to perform secondary sampling.

[0083] More specifically, referring to Figure 6Firstly, the preparation work before the sampling device is submerged is carried out, including cleaning the sampling device and injecting a certain pressure in the energy storage cavity. Then the sampling device is transported to the target sampling site, the plurality of methane sensors in the methane concentration detection array are controlled by the first control module to probe into the sediment, the methane concentration information and the corresponding detection depth information of the target sampling site are obtained, and the SMTZ depth information is fitted according to the methane concentration information and the detection depth information. Then the sampling cavity is controlled to collect samples by the first control module, after the sampling cavity collects samples, the sampling cavity is controlled to rise, then the pressure maintaining cylinder is controlled to translate to below the sampling cavity, the sampling cavity is lowered to be placed in the pressure maintaining cylinder, the docking and sealing of the sampling cavity and the pressure maintaining cylinder are completed, and the pressure maintaining multi-medium large-diameter sample collection is completed. During the sampling process, the sonar carried by the sampling cavity monitors the sediment and seawater thickness in the collected sample in real time, and transmits the data to the first control module. The first control module determines whether the sampling meets the research requirements by comparing the sediment thickness in the sampling cavity with the calculated SMTZ depth information: if it meets the requirements, the sampling results and the sampling device are pulled up to the deck for subsequent work; if it is judged that the collected sample does not meet the requirements, the first control module issues an instruction to the second control module to release the collected sample. The sampling device moves to the next target sampling site for secondary sampling.

[0084] It can be understood that the method of the embodiment can apply the device of the above-mentioned embodiment 1, and the optional items in the above-mentioned embodiment 1 are also applicable to the embodiment, so the description is not repeated here.

[0085] Embodiment 3

[0086] The embodiment provides a computer readable storage medium, and at least one instruction, at least one program, a code set or an instruction set are stored on the storage medium. The at least one instruction, the at least one program, the code set or the instruction set are loaded and executed by a processor, so that the processor executes part or all steps of the method provided in the embodiment 2.

[0087] It can be understood that the storage medium can be transient or non-transient. Exemplarily, the storage medium includes but is not limited to a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk and various storage program codes.

[0088] Exemplarily, the processor can be a Central Processing Unit (CPU), a Microprocessor Unit (MPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), or the like.

[0089] Exemplarily, the read-only memory includes, but is not limited to, a MASK ROM, a PROM, an EPROM, an EEPROM, a Flash, or the like.

[0090] Exemplarily, the random access memory includes, but is not limited to, a DRAM, an SRAM, an SDRAM, a DDR SDRAM, or the like.

[0091] In some examples, a computer program product is provided, which can be implemented in a hardware manner, a software manner, or a combination of both. As a non-limiting example, the computer program product can be embodied in a storage medium, and can also be embodied in a software product, such as an SDK (Software Development Kit) or the like.

[0092] As a non-limiting example, a computer program product is provided, which includes a computer program or computer executable instructions stored in a computer readable storage medium. A processor of an electronic device reads the computer program or computer executable instructions from the computer readable storage medium, and the processor executes the computer executable instructions, so that the electronic device performs part or all of the steps of the method described in the embodiments of the present application.

[0093] In some examples, a computer program is provided, which includes computer readable code, and when the computer readable code is run in a computer device, a processor in the computer device performs part or all of the steps of the method.

[0094] The embodiments also provide an electronic device, which includes a memory and a processor. The memory stores at least one instruction, at least one program, a code set, or an instruction set. When the processor executes the at least one instruction, at least one program, code set, or instruction set, part or all of the steps of the method described in Embodiment 2 are implemented.

[0095] In some examples, a hardware entity of the electronic device is provided, comprising: a processor, a memory and a communication interface; wherein the processor generally controls the overall operation of the electronic device; the communication interface is used for the electronic device to communicate with other terminals or servers through a network; the memory is configured to store instructions and applications executable by the processor, and can also cache data to be processed by the processor and data to be processed or having been processed by each module in the electronic device (including but not limited to image data, audio data, voice communication data and video communication data), which can be realized by FLASH, EPROM (Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory) or RAM (Random Access Memory).

[0096] The processor can include one or more processing elements. Thus, the processor can include one or more integrated circuits (ICs) configured to perform the functions of the processor. Further, each integrated circuit can include circuitry (e.g., first circuitry, second circuitry, and other circuitry, etc.) configured to perform the functions of the processor.

[0097] Further, the processor, the communication interface and the memory can transmit data through a bus, which can include any number of interconnected buses and bridges, connecting the various circuits of the one or more processors and the memory together.

[0098] It can be understood that the options in Embodiment 1 or 2 described above are also applicable to the present embodiment, and thus will not be repeated here.

[0099] The same or similar reference numerals correspond to the same or similar components;

[0100] The terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present application;

[0101] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0102] In different specific implementations, the methods or systems described in the present application can be implemented in software, hardware or their combination. In addition, the order of the steps of the method can be changed, and various elements can be added, reordered, combined, omitted, modified, etc.

[0103] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation of the present application, and are not used to limit the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art, and each separate structure / function module or unit can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part, and the structure and function of the separate components can be realized as a combined structure or component. Here, all the implementations are not required or possible to be exhausted. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A multi-medium large aperture fidelity sampling device, characterized in that, The application relates to a methane concentration detection array for detecting methane leakage at a target sampling site and generating methane detection information. The methane detection information comprises detection depth information and methane concentration information. A first control module is used for determining SMTZ depth information at the target sampling site according to the methane detection information. The first control module is also used for determining a first control instruction according to the SMTZ depth information. A sample collection module is used for performing pressure maintaining collection at the target sampling site in response to the first control instruction. The sample collection module is also used for determining sample thickness information about the collected sample and releasing the sample and / or performing secondary sampling according to a second control instruction determined by the first control module in response to the sample thickness information. The sample collection module comprises: A sampling cavity is used for performing sampling operation at the target sampling site and storing the collected sample. An echo sounder is arranged in the sampling cavity and is used for determining whether the sample is successfully collected in the sampling cavity and the sample thickness information about the sample. An energy storage cavity is used for injecting pressure and is connected to the sampling cavity through a piston to maintain the pressure of the sampling cavity. A pressure maintaining module is used for performing pressure maintaining operation with the sampling cavity after the sampling operation of the sampling cavity is completed. A second control module is used for receiving the first control instruction and / or the second control instruction, controlling the sampling cavity to perform sampling operation and / or releasing operation according to the first control instruction and / or the second control instruction and generating a third control instruction to control the pressure maintaining module to perform the pressure maintaining operation after the sampling operation is completed. The SMTZ depth information at the target sampling site is determined according to the methane detection information. The sample collection module further comprises a device frame, and the second control module, the sampling cavity, the energy storage cavity and the pressure maintaining module are arranged in the device frame. The pressure maintaining module comprises a pressure maintaining cylinder and a third control module. One end of the pressure maintaining cylinder is provided with an opening for inserting the sampling cavity. The third control module is used for controlling the pressure maintaining cylinder to move to the same axis as the sampling cavity and making the opening of the pressure maintaining cylinder face the sampling cavity in response to the third control instruction.

2. A multi-medium large bore fidelity sampling device according to claim 1, wherein, The pressure maintaining cylinder is sealed with the sampling cavity after the sampling cavity is inserted into the pressure maintaining cylinder to complete the pressure maintaining operation.

3. The multi-medium large-aperture fidelity sampling device of claim 1, wherein, The second control instruction is determined according to the first control module in response to the sample thickness information. ​ ​ 4. The multi-medium large-bore fidelity sampling device of claim 1, wherein, ​ The first control module determines whether the collected sample meets preset requirements by using the sample thickness information obtained by the sonar. If yes, no operation is performed. Otherwise, a second control instruction is generated to instruct the sampling cavity to release the currently collected sample and / or to perform sampling operation again. The second control module controls the sampling cavity to complete the release operation and / or the sampling operation in response to the second control instruction.

5. The multi-medium large bore fidelity sampling device of claim 1, wherein, The determination of the SMTZ depth information at the target sampling site further includes: The SMTZ depth information obtained from the plurality of methane concentration detection arrays is averaged, and the obtained average value is taken as the final SMTZ depth information.

6. The multi-medium large bore fidelity sampling device of claim 1, wherein, The methane concentration detection array includes a plurality of methane detection modules distributed around the sample collection module. Each methane detection module includes: a methane sensor configured to collect methane concentration information in the sediment at a target sampling site; a third control module configured to control the methane sensor to probe into the sediment to obtain methane concentration information in the sediment at different depths, and to send the methane concentration information and corresponding detection depth information to the first control module; a protection device configured to accommodate the third control module and the methane sensor.

7. A multi-medium large aperture fidelity sampling method, using the device of any one of claims 1-6, characterized in that, The method includes: causing the methane concentration detection array to probe into the sediment at a target sampling site to obtain methane leakage conditions at different depths at the target sampling site to generate methane detection information; causing the first control module to determine SMTZ depth information in response to the methane detection information, wherein the SMTZ depth information is used to indicate the SMTZ depth region; causing the first control module to generate a first control instruction according to the SMTZ depth information and send the first control instruction to the sample collection module, wherein the first control instruction is used to instruct the sample collection module to perform pressure-maintained collection at the target sampling site; causing the sample collection module to perform pressure-maintained collection in response to the first control instruction and determine sample thickness information about the collected sample; causing the first control module to determine whether to generate a second control instruction according to the sample thickness information, wherein the second control instruction is used to instruct the sample collection module to release the sample and / or to perform secondary sampling.

8. A computer program product comprising computer programs or computer executable instructions, characterized in that, The computer program or computer executable instructions are executed by the processor to implement the method of claim 7.

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