A device for real-time monitoring and analysis of lunar soil drilling process

Abstract

The present invention discloses a device for real-time monitoring and analysis of the lunar soil drilling process. The device comprises a drill rod having an inner and outer sandwich structure, comprising, from the inside out, a transparent layer, a micro-device mounting layer, and a rigid protective surface. The transparent layer houses a sampling chamber, which is equipped with a central piston and a central piston controller disposed at the top of the sampling chamber. The central piston controller is capable of controlling the upward and downward movement of the central piston within the sampling chamber. A sidewall image recognition sensor is mounted on the inner side of the micro-device mounting layer, and a top image recognition sensor is mounted within the sharp corner of the central piston. A foldable baffle is also provided at the bottom of the drill rod. The device can monitor the velocity field, displacement field, and stratigraphic information of the lunar soil particle flow in real time during lunar soil drilling, providing reference information for astronauts' drilling operations and thus guiding them in optimizing the sampling process in real time.

Description

Technical Field

[0001] The present invention relates to the field of geotechnical exploration, and in particular to a device for real-time monitoring and analysis of a lunar soil drilling process. Background Art

[0002] Compared to unmanned missions, the biggest advantage of manned lunar exploration is that astronauts can deploy instruments and equipment, significantly improving the efficiency of related work. Ensuring human-machine collaboration and improving astronaut work efficiency during astronaut participation are key to leveraging the advantages of manned lunar exploration on the basis of unmanned missions and achieving cutting-edge scientific goals. This places higher demands on the design of human-machine collaboration.

[0003] Manned lunar exploration sampling has higher autonomy, more flexible sampling methods, and a larger total amount of sampling, which is more conducive to the selective collection of samples with greater scientific value, but also places higher requirements on sample detection, collection, and packaging.

[0004] The lunar soil drilling system will primarily collect lunar soil from below the lunar surface, obtaining samples with relatively pristine layers to facilitate subsequent analysis. The functionality of the sampling tool is crucial for extracting lunar soil samples, and key to successful sampling lies in understanding the dynamic particle flow during the drilling process. However, some domestic research institutions currently use a particle flow approach to simulate lunar soil drilling. This simulation alone currently prevents monitoring of the actual drilling process. Therefore, we are continuing to develop a real-time lunar soil drilling process monitoring device to provide guidance for astronauts during drilling operations. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for real-time monitoring and analysis of the lunar soil drilling process, which can provide a basis for adjusting the drilling operations of astronauts.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A device for real-time monitoring and analysis of the lunar soil drilling process includes a drill rod. The drill rod has an inner and outer sandwich structure, which comprises, from the inside to the outside, a transparent layer, a micro-device mounting layer, and a rigid protective surface. The transparent layer contains a sampling chamber, which is equipped with a central piston and a central piston controller arranged on the top of the sampling chamber. The central piston controller can control the central piston to move up and down in the sampling chamber. A side wall image recognition sensor is installed on the inner side of the micro-device mounting layer, and a top image recognition sensor is installed in the sharp corner of the top of the central piston. A foldable baffle is also provided at the bottom of the drill rod.

[0008] A further improvement of the present invention is that the transparent layer is made of a transparent material and can transmit light.

[0009] A further improvement of the present invention is that when the central piston rises to a set position, the top triangular cover is opened and the top image recognition sensor starts to work.

[0010] A further improvement of the present invention is that the top image recognition sensor is an integrated device of a camera, lighting and controller.

[0011] A further improvement of the present invention is that the top image recognition sensor can monitor the movement speed and displacement change information of lunar soil particles.

[0012] A further improvement of the present invention is that the side wall image recognition sensor is an integrated device of a camera, lighting and controller, and is used to obtain images inside the sampling chamber.

[0013] A further improvement of the present invention is that the baffle is located at the bottom of the drill rod. When the drill rod is extended toward the soil layer, the baffle is in an open state; when the drill rod is lifted, the baffle is closed.

[0014] A further improvement of the present invention is that the baffle is rotatable and always remains in a vertically open state before the drill rod completes sampling. When the drill rod is lifted, the baffle rotates to a horizontally closed state to ensure that the sample in the sampling chamber will not slip out.

[0015] A further improvement of the present invention is that spiral blades are installed on the outer side of the micro-device installation layer.

[0016] Compared with the prior art, the present invention has at least the following beneficial technical effects:

[0017] 1. This invention, primarily based on optical imaging, provides real-time monitoring and analysis of lunar soil drilling in the extreme lunar environment, providing a reference for astronauts' drilling operations. The drill rod is divided into two layers: the inner layer for sampling and the outer layer for mounting related equipment. This overcomes the shortcomings of traditional drill bits, which are limited by their single nature, while offering the advantages of flexibility and diversity.

[0018] 2. The inner layer of the drill pipe is made of transparent material, which allows the situation in the sampling chamber to be observed under the action of the light field, and has the advantage of convenient observation.

[0019] 3. The image recognition sensor used in the present invention is an integrated device that integrates a camera, lighting and controller, and has the advantages of being compact and flexible, highly integrated and fully functional.

[0020] 4. The central piston in the sampling chamber of the present invention can slide up and down, and can block the inlet of the sampling chamber before sampling, which has the advantage of protecting the sampling chamber from being contaminated by non-target samples.

[0021] 5. The baffle at the inlet of the drill pipe sampling chamber can be rotated and closed after sampling is completed, which has the function of preventing the sample from slipping out and has the advantage of flexible operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of a device for real-time monitoring and analysis of the lunar soil drilling process according to the present invention.

[0023] Figure 2 It is a schematic diagram of the working process of the present invention.

[0024] Description of reference numerals:

[0025] 1 is the drill rod, 2 is the central piston controller, 3 is the sampling chamber, 4 is the transparent layer, 5 is the micro-device mounting layer, 6 is the rigid protective surface, 7 is the central piston, 8 is the baffle, 9 is the top image recognition sensor, 10 is the side wall image recognition sensor, 11 is the lunar soil particle, and 12 is the spiral blade. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1 As shown, the present invention provides a device for real-time monitoring and analysis of the lunar soil drilling process, comprising a drill rod 1 and a baffle 8 at the bottom of the drill rod 1. Specifically, the drill rod 1 is divided into two outer sides, forming a sandwich structure with concentric circular cross-sections. The inner layer is a sampling chamber 3, whose wall material is a transparent layer 4. The sampling chamber 3 contains a central piston controller 2 and a central piston 7. The central piston controller 2 can control the vertical movement of the central piston 7. The baffle 8 at the bottom end of the drill rod 1 can rotate.

[0028] The second layer of the drill pipe 1 is the micro-device mounting layer 5, on the inner side of which is mounted a sidewall image recognition sensor 10, and on the outer side of which is mounted a spiral blade 12. A top image recognition sensor 9 is mounted inside the top triangular area of ​​the central piston 7.

[0029] The side wall image recognition sensor 10 and the top image recognition sensor 9 are both devices that integrate cameras, lighting, and controls.

[0030] To drill lunar soil particles 11, the central piston 7 located in the sampling chamber 3 is first placed at the bottom entrance of the drill rod 1, and the drill rod 1 begins drilling downward. When the predetermined position is reached, the drill rod 1 temporarily stops. The central piston brake 2 then controls the upward movement of the central piston 7, stopping it at the top of the sampling chamber 3. The triangular area at the top of the central piston 7 opens, and the top image recognition sensor 9 inside begins operating. Simultaneously, the sidewall image recognition sensor 10 located within the micro-device mounting layer 5 also begins operating. The drill rod 1 then continues operating, sampling lunar soil particles 11. As lunar soil particles 11 fill the sampling chamber 3, the light field emitted by the sidewall image recognition sensor 10 passes through the transparent layer 4 to illuminate the surface of the lunar soil particles 11. The captured particle images are transmitted to an analysis device, which can obtain information such as the sampling speed, displacement changes, porosity, particle size, and stratigraphic sequence of the lunar soil particles. The top image recognition sensor 9 at the top of the central piston 7 also begins operating, monitoring the movement speed and displacement field changes of the lunar soil particles. After sampling is complete, baffle 8 located at the bottom of drill rod 1 is selectively closed to prevent the sample from sliding, and drill rod 1 is lifted to seal the sample. The device of the present invention can be used not only for monitoring and analyzing lunar soil sampling, but also for monitoring and analyzing soil sampling in Earth environments. The device can obtain preliminary sample information in real time, providing a basis for samplers to operate the equipment.

Claims

1. A device for real-time monitoring and analysis of lunar soil drilling process, characterized in that: The drill rod (1) comprises an inner and outer sandwich structure, which comprises a transparent layer (4), a micro-device mounting layer (5) and a rigid protective surface (6) from the inner to the outer, wherein the transparent layer (4) contains a sampling chamber (3), a central piston (7) and a central piston controller (2) disposed on the top of the sampling chamber (3), the central piston controller (2) being capable of controlling the central piston (7) to move up and down in the sampling chamber (3), a side wall image recognition sensor (10) being installed on the inner side of the micro-device mounting layer (5), a top image recognition sensor (9) being installed in the sharp corner of the top of the central piston (7), and a foldable baffle (8) being provided at the bottom of the drill rod (1); When the central piston (7) rises to a set position, the top triangular cover is opened, and the top image recognition sensor (9) starts to work; the top image recognition sensor (9) can monitor the movement speed and displacement change information of the lunar soil particles; The baffle (8) is located at the bottom of the drill rod (1). When the drill rod (1) extends toward the soil layer, the baffle (8) is in an open state; when the drill rod (1) is lifted, the baffle (8) is closed; the baffle (8) is rotatable. Before the drill rod (1) completes sampling, the baffle (8) always remains in a vertically open state. When the drill rod (1) is lifted, the baffle (8) rotates to a horizontally closed state, ensuring that the sample in the sampling chamber (3) does not slip out.

2. The device for real-time monitoring and analysis of lunar soil drilling process according to claim 1, characterized in that: The transparent layer (4) is made of a transparent material and can transmit light.

3. The device for real-time monitoring and analysis of lunar soil drilling process according to claim 1, characterized in that: The top image recognition sensor (9) is an integrated device of camera, lighting and controller.

4. The device for real-time monitoring and analysis of lunar soil drilling process according to claim 1, characterized in that: The side wall image recognition sensor (10) is an integrated device of a camera, lighting and controller, and is used to obtain an image in the sampling chamber (3).

5. The device for real-time monitoring and analysis of lunar soil drilling process according to claim 1, characterized in that: A spiral blade (12) is installed on the outer side of the micro-device installation layer (5).

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