A portable core logging device

Abstract

The utility model discloses a portable core logging device, and the device is mainly constituted by main unit, measurement positioning module, data processing and intelligent identification module and user interactive module. The main unit is as the basic support, and the image acquisition module is arranged on it, and is used for obtaining the image information of the core. The measurement positioning module covers the measurement scale, electronic compass and positioning module, and is all installed in the main unit and is connected with the data processing and intelligent identification module, can realize the core position positioning, size measurement and geological structure occurrence measurement and other functions. The data processing and intelligent identification module are built -in in the main unit, and are electrically connected with the image acquisition module, and are responsible for the processing and intelligent analysis to the collected data. The user interactive module is arranged on the main unit, and is electrically connected with the rest multiple modules, and provides the operation and interactive interface for the user. The device improves the efficiency and accuracy of core logging work, realizes the effective collection and processing of core information.

Description

Technical Field

[0001] This utility model belongs to the field of geological exploration technology and relates to a portable rock core recording device. Background Technology

[0002] Core logging is the most crucial foundational work for obtaining raw geological information in geological exploration. The quality of its results directly determines the reliability of mineral resource assessment, the accuracy of engineering geological judgment, and the value of related scientific research. However, the traditional manual logging methods that have long been used in this field have a series of inherent limitations in terms of efficiency, accuracy, and data management that urgently need to be addressed.

[0003] Traditional core logging processes rely heavily on visual observation and manual measurement by geologists, using simple instruments such as calipers and compasses. This approach faces the core challenges of high subjectivity and insufficient standardization. Because the identification and description of characteristics such as lithology, structure, texture, mineralization alteration type and intensity are based entirely on personal experience, significant differences often arise in the records of the same geological phenomenon by different loggers, severely impacting data consistency and objectivity. Secondly, in the data acquisition stage, manually measuring parameters such as core length, occurrence, and fracture density is cumbersome and inefficient, and human error and reading errors are difficult to avoid, resulting in limited data accuracy.

[0004] Furthermore, the commonly used paper-based recording method has significant shortcomings in data recording and management. Field records need to be manually entered into the computer later, which not only creates double labor and low efficiency but also easily introduces transcription errors, compromising data integrity. Paper data is itself susceptible to water, dirt, damage, and loss at the site, making it difficult to guarantee the long-term security of the data. More importantly, this non-digital model creates information silos, preventing real-time data sharing and collaborative analysis, greatly limiting its application value in rapid decision-making. At the same time, logging work is often carried out in limited environments such as drilling sites or temporary core sheds, where poor lighting and spatial layout directly affect the accuracy of observation and the convenience of recording.

[0005] In summary, traditional core logging suffers from systemic deficiencies in accuracy, efficiency, and data flow, becoming a key bottleneck hindering the digitalization and intelligentization of geological exploration. Therefore, exploring and applying next-generation technologies to transform this traditional work model and achieve objective, accurate, and efficient data acquisition and real-time, structured management has become an urgent need for the industry's development. Utility Model Content

[0006] The purpose of this invention is to solve the technical problems of low efficiency, poor accuracy and data silos in traditional core logging, and to provide a portable core logging device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: This utility model discloses a portable core logging device, including a main unit, a measurement and positioning module, a data processing and intelligent recognition module, and a user interaction module; The main unit is equipped with an image acquisition module; the measurement and positioning module includes a measuring scale, an electronic compass, and a positioning module; the measuring scale, electronic compass, and positioning module are all located on the main unit and are all connected to the data processing and intelligent recognition module; the positioning module is used to locate the position of the rock core; the data processing and intelligent recognition module is located inside the main unit and is electrically connected to the image acquisition module; the user interaction module is located on the main unit and is electrically connected to the image acquisition module, the measurement and positioning module, and the data processing and intelligent recognition module, respectively.

[0008] Furthermore, the image acquisition module includes a camera and a hyperspectral imaging sensor; the camera is mounted on the main unit, and the hyperspectral imaging sensor is located within the main unit.

[0009] Furthermore, the camera is equipped with an LED fill light.

[0010] Furthermore, the positioning module employs a laser rangefinder transmitter, and the light emitted by the laser rangefinder transmitter is received by the hyperspectral imaging sensor.

[0011] Furthermore, it also includes a slide rail and a telescopic bracket, the slide rail being horizontally mounted on top of the telescopic bracket; the main body unit is detachably mounted on top of the telescopic bracket and slidably connected to the slide rail; the slide rail is provided with a scale.

[0012] Furthermore, the main body unit and the slide rail are slidably connected via the quick-release interface.

[0013] Furthermore, the data processing and intelligent recognition module is located in the built-in processor of the main unit, receives raw data from the measuring scale, electronic compass, positioning module and image acquisition module, and converts the raw data into structured information.

[0014] Furthermore, the user interaction module includes a display screen, a shutter button, a measurement button, and a mode switching wheel; The display screen is electrically connected to the image acquisition module, the measurement and positioning module, and the data processing and intelligent recognition module; the shutter button is electrically connected to the image acquisition module; the measurement button is electrically connected to the measurement and positioning module; the mode switching wheel is electrically connected to the image acquisition module and the measurement and positioning module, and is used for switching between the image acquisition module and the measurement and positioning module.

[0015] Furthermore, the user interaction module also includes a microphone array, which is electrically connected to the data processing and intelligent recognition module for voice control.

[0016] Furthermore, the user interaction module also includes a rotatable pressure-sensing knob, which is connected to the measurement and positioning module and is used to adjust the measurement scale.

[0017] Compared with the prior art, the present invention has the following beneficial effects: This utility model discloses a portable core logging device that highly integrates the main unit, measurement and positioning module, data processing and intelligent recognition module, and user interaction module into one compact structure, significantly reducing the size and weight of the equipment and making it easy to carry to various field or on-site working environments. Users no longer need to carry multiple separate devices, improving work convenience and efficiency. The measurement and positioning module, with its measuring scale, electronic compass, and positioning module working in tandem, can accurately measure various parameters of the core and precisely locate its position. The measuring scale provides accurate dimensional measurements, the electronic compass determines directional information, and the positioning module determines the core's geographical location, providing precise basic data for subsequent data analysis and geological research, effectively ensuring the accuracy and reliability of the core logging data. The data processing and intelligent recognition module, located within the main unit and electrically connected to the image acquisition module, can receive core image information acquired by the image acquisition module in real time and perform rapid processing and intelligent recognition. Through advanced algorithms and intelligent recognition technology, this module can automatically identify the characteristics and lithology of rock cores, greatly reducing the workload and subjective errors of manual analysis, and significantly improving the efficiency and quality of rock core logging. This enables geologists to obtain relevant rock core information more promptly and accurately. The user interaction module is located on the main unit and is electrically connected to the image acquisition module, measurement and positioning module, and data processing and intelligent recognition module, providing users with an intuitive and convenient operating interface. Users can easily control image acquisition, view measurement and positioning data, obtain data processing and intelligent recognition results through this interaction module, and set and adjust parameters as needed. This enhances the interactivity between the user and the device, making operation more flexible and meeting the needs of different users in different working scenarios.

[0018] Furthermore, the image acquisition module includes a camera and a hyperspectral imaging sensor. The camera is mounted on the main unit, while the hyperspectral imaging sensor is located inside the main unit. This combination enables the device to acquire both conventional visible light images of the rock core and richer spectral information from the rock core through the hyperspectral imaging sensor. This provides more comprehensive and detailed data support for the analysis of the rock core's material composition and lithological identification, greatly enhancing the information dimension and accuracy of the rock core cataloging.

[0019] Furthermore, the LED fill lights surrounding the camera provide ample and uniform illumination for image acquisition in low-light environments, ensuring clear and bright images captured by the camera and reducing the impact of image blurring and shadows caused by lighting issues. This further improves the quality of image acquisition and makes subsequent data processing and intelligent recognition more reliable.

[0020] Furthermore, the positioning module employs a laser rangefinder transmitter, and the emitted light is received by a hyperspectral imaging sensor. This unique positioning method combines positioning functionality with hyperspectral imaging technology, enabling not only precise determination of the core's location but also correlation between positioning information and hyperspectral imaging data. This provides synchronous and accurate data for the spatial location and material properties analysis of the core, facilitating a deeper study of the core's geological characteristics and distribution patterns.

[0021] Furthermore, the sliding rail and telescopic bracket provide flexible installation and usage options for the device. The sliding rail is horizontally mounted on top of the telescopic bracket, and the main unit is detachably mounted on top of the telescopic bracket and slidably connected to the sliding rail, which is marked with graduations. This allows the device to easily adjust the position of the main unit according to the size and location of the rock core and actual working needs, achieving precise focusing and comprehensive imaging. The telescopic bracket allows for height adjustment of the device, adapting to different working environments and operating habits, thus improving the device's versatility and ease of operation.

[0022] Furthermore, the user interaction module includes a display screen, shutter button, measurement button, and mode switching wheel. The display screen is electrically connected to multiple modules, enabling real-time display of image acquisition, measurement positioning, data processing, and intelligent recognition results, allowing users to intuitively understand the device's operating status and core information. The shutter button, measurement button, and mode switching wheel are electrically connected to their respective modules, facilitating easy switching between image acquisition, measurement operations, and spectral measurements. The operation is simple and intuitive, improving user efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a structural diagram of the portable core recording device of this utility model; Figure 2 This is a schematic diagram of a special slide rail bracket according to an embodiment of the present utility model; Figure 3 This is a layered architecture diagram of the portable core logging device of this utility model; Figure 4 A logic diagram of the user interface; Figure 5 This is a schematic diagram of the generated cataloging results.

[0025] The components are as follows: 1-Camera; 2-LED fill light; 3-Laser rangefinder transmitter; 4-Shutter button; 5-Measurement button; 6-Mode switching wheel; 7-Rotable pressure-sensitive knob; 8-Display screen; 9-Microphone array; 10-Type-C interface; 11-SD card slot; 12-Tripod screw hole; 13-Aviation interface; 14-Extendable bracket; 15-Quick release interface; 16-Scale. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The present invention will now be described in further detail with reference to the accompanying drawings: See Figures 1-3 The purpose of this utility model is to provide a portable, integrated, and intelligent device that solves the problems of low efficiency, poor accuracy, strong subjectivity, and data silos in traditional core logging, enabling rapid, accurate, digital acquisition, processing, and structured storage of core information in the field. One embodiment of this utility model provides a portable core logging device, comprising: Main unit: Featuring a robust, lightweight, and ergonomic housing with a tri-proof design (waterproof, dustproof, and shockproof). It can house sensors, a processor, memory, and a battery, providing the basic support and operating environment for the entire device.

[0033] Image acquisition module: Located on the outer casing, it is equipped with a high-resolution camera 1, such as a 15mm diameter high-precision camera, featuring autofocus and macro capabilities. It can capture high-definition photos and videos of the entire rock core and its details, clearly presenting various characteristics of the core. Camera 1 is equipped with a ring LED fill light 2, whose brightness is adjustable and automatically adjusts according to different lighting conditions to ensure clear and uniform imaging, providing a good lighting environment for image acquisition. A hyperspectral imaging sensor is also included for preliminary mineral identification, quickly obtaining basic mineral type information by analyzing the spectral information of the rock core.

[0034] The measurement and positioning module includes a measuring scale, an electronic compass, and a positioning module. The measuring scale, electronic compass, and positioning module are all mounted on the main unit and connected to the data processing and intelligent recognition module. A slide rail 16 is integrated into a telescopic bracket 14. The main unit is mounted on the telescopic bracket 14 via a quick-release interface 15 and a tripod screw hole (12). The slide rail 16 is horizontally mounted on the top of the telescopic bracket 14. The main unit is detachably mounted on the top of the telescopic bracket 14 and slidably connected to the slide rail 16. The slide rail 16 has a scale. The measuring scale, in conjunction with the slide rail 16, can accurately measure linear dimensions such as core length, crack width, and mineral particle size, providing high measurement accuracy and accurate data for quantitative analysis of the core. The electronic compass is located inside the outer casing and is used to measure the attitude of structural surfaces (bedding, foliation, joints, faults) on the core, including dip and dip angle, helping geologists accurately understand the geological structural characteristics of the core. The positioning module is integrated into the main unit and uses a laser rangefinder 3. The indoor positioning system based on the laser positioning target can accurately locate the position of the rock core on the tray and establish a spatial sequence relationship diagram of the rock core, so as to realize the spatial positioning and orderly management of the rock core.

[0035] The data processing and intelligent recognition module runs on the built-in processor and features a core image recognition and analysis engine. Modern methods based on intelligent deep learning automatically learn the abstract features of fractures by training convolutional neural networks. The principle is to input a large number of labeled fracture images into the network, enabling the model to extract deep patterns from pixel data, from edges and textures to complex shapes, ultimately grasping the essential concept of a "fracture." This method eliminates the need for manually defined features, has strong adaptability to noise and complex backgrounds, and can not only more accurately identify minute fractures but also determine their orientation, width, and other attributes, making it the mainstream and core technology in the current field of fracture recognition. It can automatically identify core tray boundaries and single-segment core outlines, improving the automation of data processing. It automatically identifies and marks natural / artificial markers on the core, such as depth markers, core numbers, and cycle numbers, facilitating data organization and traceability. It automatically identifies major lithologies (based on color and texture) and structural features (bedding, joints, folds, veins), and automatically calculates fracture density, length, and orientation, providing comprehensive structural information for geological analysis. Preliminary mineral identification is performed by combining hyperspectral data, while raw data from the ruler, compass, and positioning module are received and processed, and converted into structured information to facilitate subsequent data storage and analysis.

[0036] The user interaction module includes a display screen 8, a shutter button 4, a measurement button 5, a mode switching wheel 6, a microphone array 9, and a rotatable pressure-sensing knob 7. Specifically, the touch display screen 8 on the main unit can display real-time images, measurement results, analysis interfaces, structured input forms, etc., allowing users to view and operate the content intuitively. Figure 4As shown, the system includes an image acquisition interface, an automatic identification and recognition interface, an intelligent recognition interface, a measurement and positioning interface (including a linear measurement interface and an attitude measurement interface), and a record-keeping form interface (including a lithology selection interface, a structural annotation interface, and a hand-drawn layer interface). Physical buttons / knobs, such as shutter button 4, measurement button 5, mode switching wheel 6, and a rotatable pressure-sensitive knob 7, are used for quick operations, such as taking photos, measuring, and confirming, improving operational efficiency. Voice input / output functions support voice command control and voice description input (which can be converted to text), providing users with a more convenient interaction method. The display screen 8 is electrically connected to the image acquisition module, the measurement and positioning module, and the data processing and intelligent recognition module; shutter button 4 is electrically connected to the image acquisition module; measurement button 5 is electrically connected to the measurement and positioning module; and the mode switching wheel 6 is electrically connected to the image acquisition module and the measurement and positioning module, used for switching between the two modules. A microphone array 9 is electrically connected to the data processing and intelligent recognition module for voice control. A rotatable pressure-sensing knob 7, connected to the measurement and positioning module, is used to adjust the measurement scale. The display screen 8 provides a structured data entry interface with standardized and customizable forms to guide users in inputting observation descriptions, including drop-down selections, checkbox numerical input, and handwriting / drawing board assistance, ensuring data standardization and consistency. The main unit also features an aviation interface 13 for connecting to an external positioning target or spectral probe.

[0037] The data storage and transmission module utilizes a large-capacity local storage SD card (11), capable of storing substantial amounts of rock core data. The wireless communication module supports 5G networks, enabling real-time or scheduled uploading of field data to cloud servers or geological databases, facilitating data sharing and remote access. A Type-C interface (10) is used for wired data transmission and charging, meeting the data transmission and device charging needs of various scenarios.

[0038] The power supply module is equipped with a high-capacity rechargeable battery that supports fast charging, meeting the needs of long-term field work and ensuring the device operates continuously and stably in the field environment.

[0039] The working process / working principle of this utility model is as follows: 1. After the device is powered on, it first performs its own system startup and initialization. At the same time, the positioning module starts working to determine the device's current geographical location information. Users can select an existing logging project or create a new logging project on the touch screen of the user interaction module according to their actual needs, preparing for subsequent core logging work.

[0040] 2. The user aligns the device's camera with the rock core, adjusts the device's height and angle using the retractable bracket, and precisely positions the device using the markings on the slide rail and the sliding connection between the main unit and the slide rail, ensuring the camera can clearly capture the overall rock core and key details. The retractable bracket provides stable support, while the slide rail allows the user to flexibly adjust the horizontal position of the main unit according to the location and size of the rock core, achieving precise focusing.

[0041] 3. The image acquisition module begins operation. A high-resolution camera (such as a 15mm diameter high-precision camera) utilizes autofocus and macro functions to capture high-definition photos and videos of the core, including both overall image and details. A ring-shaped LED supplementary light automatically adjusts its brightness according to different lighting conditions, providing uniform and sufficient illumination for image acquisition, ensuring clear and bright images that clearly present the core's various characteristics. Simultaneously, a hyperspectral imaging sensor performs hyperspectral imaging of the core. By analyzing the core's spectral information, preliminary information on the basic mineral types is obtained, providing data support for subsequent lithological analysis.

[0042] 4. The core image recognition and analysis engine of the data processing and intelligent recognition module begins operation. The system first automatically identifies the core markers and outlines to determine the basic shape and location of the core. Users can select or tap targets on the core (such as a crack, a mineral grain, or a structural plane) via the touchscreen. The measuring scale in the positioning module works in conjunction with the slide rail to accurately measure the linear dimensions of the target, such as length and width. The electronic compass measures the attitude of structural planes (bedding, foliation, joints, faults) on the core, including dip and dip angle. The positioning module (laser rangefinder) uses an indoor positioning system based on a laser positioning target to accurately locate the core on the tray and establish a spatial sequence relationship diagram of the core.

[0043] The system automatically analyzes images to identify lithology (based on color and texture) and structural features (bedding, joints, folds, veins), and automatically calculates information such as fracture density, length, and orientation. Simultaneously, it performs preliminary mineral identification using hyperspectral data and converts raw data from the measuring scale, electronic compass, and positioning module into structured information, providing preliminary results for users to confirm or modify on the touchscreen.

[0044] 5. Users can supplement relevant information about the rock core in the standard form on the touch screen, such as selecting lithology code, alteration type, mineralization intensity level, etc. from the drop-down menu. They can also record their observations and descriptions of the rock core in detail through numerical input, handwriting / drawing board assistance, etc., to ensure the standardization and consistency of the data.

[0045] 6. Users can directly draw or add symbols on core photos through the annotation interface and the hand-drawn coating interface to annotate and explain specific parts of the core, further enriching the information content of the core catalog.

[0046] 7. All collected images, measurement data, recognition results, user-input descriptions, map annotations, location information, timestamps, and other data are correlated and integrated to form a structured catalog record. This data can be stored on a local SD card or uploaded to a cloud server or geological database in real time or on a schedule via a wireless communication module (supporting 5G networks), facilitating data sharing and remote access. Furthermore, the Type-C interface can be used for wired data transmission and charging, meeting the needs of different scenarios. The resulting catalog can be found in [reference needed]. Figure 5 This includes visualizations of fracture networks, fracture orientation rose diagrams, mineral content pie charts, and bar charts of depth, lithology, and description.

[0047] 8. Whether on-site or back indoors, users can use the device's one-click generation function to generate standardized core logging columnar section previews and preliminary reports, providing intuitive and accurate data support for subsequent geological research and decision-making.

[0048] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A portable core logging device, characterized in that, It includes a main unit, a measurement and positioning module, a data processing and intelligent recognition module, and a user interaction module; The main unit is equipped with an image acquisition module; the measurement and positioning module includes a measuring scale, an electronic compass, and a positioning module; the measuring scale, electronic compass, and positioning module are all located on the main unit and are all connected to the data processing and intelligent recognition module; the positioning module is used to locate the position of the rock core; the data processing and intelligent recognition module is located inside the main unit and is electrically connected to the image acquisition module; the user interaction module is located on the main unit and is electrically connected to the image acquisition module, the measurement and positioning module, and the data processing and intelligent recognition module, respectively.

2. The portable core logging device according to claim 1, characterized in that, The image acquisition module includes a camera (1) and a hyperspectral imaging sensor; the camera (1) is mounted on the main body unit, and the hyperspectral imaging sensor is mounted inside the main body unit.

3. The portable core logging device according to claim 2, characterized in that, The camera (1) is equipped with an LED fill light (2).

4. The portable core logging device according to claim 2, characterized in that, The positioning module uses a laser rangefinder (3), and the light emitted by the laser rangefinder (3) is received by the hyperspectral imaging sensor.

5. The portable core logging device according to claim 1, characterized in that, It also includes a slide rail (16) and a telescopic bracket (14), the slide rail (16) being horizontally mounted on the top of the telescopic bracket (14); the main body unit is detachably mounted on the top of the telescopic bracket (14) and slidably connected to the slide rail (16); the slide rail (16) is provided with a scale.

6. The portable core logging device according to claim 5, characterized in that, The main body unit and the slide rail (16) are slidably connected through a quick-release interface (15).

7. The portable core logging device according to claim 1, characterized in that, The data processing and intelligent recognition module is located in the built-in processor of the main unit. It receives raw data from the measuring scale, electronic compass, positioning module and image acquisition module, and converts the raw data into structured information.

8. The portable core logging device according to claim 1, characterized in that, The user interaction module includes a display screen (8), a shutter button (4), a measurement button (5), and a mode switching wheel (6). The display screen (8) is electrically connected to the image acquisition module, the measurement and positioning module, and the data processing and intelligent recognition module; the shutter button (4) is electrically connected to the image acquisition module; the measurement button (5) is electrically connected to the measurement and positioning module; the mode switching wheel (6) is electrically connected to the image acquisition module and the measurement and positioning module; and is used for switching between the image acquisition module and the measurement and positioning module.

9. The portable core logging device according to claim 8, characterized in that, The user interaction module also includes a microphone array (9), which is electrically connected to the data processing and intelligent recognition module for voice control.

10. The portable core logging device according to claim 8, characterized in that, The user interaction module also includes a rotatable pressure sensing knob (7), which is connected to the measurement positioning module and is used to adjust the measurement scale.

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