Herb-snail investigation and information recording integrated device for monitoring schistosomiasis

Abstract

The utility model provides a kind of herb-snail survey and information record integration device special for forest and grass blood prevention monitoring, for solving the technical problem of investigation tool separation in prior art, inconvenient operation, influence correlation analysis accuracy, the device includes: main body quadrat frame, for defining the investigation range of herb vegetation;Snail searching frame is used for snail investigation;Guiding positioning mechanism is arranged between the main body quadrat frame and the snail searching frame, for guiding the movement and positioning of the snail searching frame in the main body quadrat frame;Measuring component is used to measure the height and / or coverage of herb vegetation in the main body quadrat frame, by integrating two independent function investigation tools in a unified physical frame, it is ensured that every snail investigation, its spatial position accurately falls into a square meter herb vegetation investigation unit;This mandatory spatial nesting relationship provides data basis for subsequent accurate "grass-snail" correlation analysis.

Description

Technical Field

[0001] This utility model belongs to the field of forestry and grassland survey technology, specifically relating to an integrated device for herbaceous snail survey and information recording for forestry and grassland schistosomiasis control monitoring. Background Technology

[0002] In the research and monitoring practice of the "Forestry and Grassland Schistosomiasis Control" project, scientifically assessing the impact of herbaceous vegetation on the breeding of Oncomelania snails (i.e., the "grass-snail" relationship) is a key link. This requires a spatially strict synchronous survey of herbaceous vegetation characteristics and Oncomelania snail density within the same monitoring unit to ensure the accuracy and scientific nature of subsequent correlation analysis.

[0003] Currently, herbaceous vegetation surveys typically use 1m×1m quadrats, laid out according to rules such as the five-point sampling method, to obtain information such as species, canopy, and height. In contrast, snail surveys use independent small quadrats with a standard area of ​​0.11m², systematically laid out over a larger plot area (e.g., 20m×20m) (e.g., mechanically laid out 81 quadrats). These two surveys are completely independent in terms of tool specifications, layout logic, and spatial focus.

[0004] This separation pattern results in a lack of precise and systematic spatial correspondence between "herbaceous quadrats" used for vegetation analysis and "snail frames" used for snail counting. In other words, observed snail density data cannot be clearly and directly attributed to a specific 1m² herbaceous quadrat with well-defined vegetation characteristics at a particular location. This leads to spatial inaccuracies in the data, resulting in poor matching of basic data when analyzing "which herbaceous community structure (e.g., high cover) is associated with low snail density" or "the specific effectiveness assessment of snail-suppressing plants." The correlation results contain significant uncertainty and statistical noise, ultimately affecting the scientific configuration and effectiveness evaluation of ecological snail suppression measures.

[0005] Therefore, it is necessary to develop a device that can physically and operationally force a precise matching and integration of the spatial locations of herbaceous quadrats and spiral frames for survey purposes, in order to facilitate the survey. Summary of the Invention

[0006] This invention proposes an integrated device for herbaceous snail survey and information recording specifically for monitoring schistosomiasis control in forests and grasslands. It aims to solve the technical problems of existing survey tools being separate, having poor spatial correspondence, and affecting the accuracy of correlation analysis.

[0007] The present invention adopts the following technical solution: An integrated device for monitoring and recording information on herbaceous snails, specifically designed for monitoring schistosomiasis control in forests and grasslands, includes: The main frame is used to define the survey area for herbaceous vegetation; At least one snail-collecting frame is used for snail surveys; A guiding and positioning mechanism is disposed between the main template frame and the screw-checking frame, for guiding the movement and positioning of the screw-checking frame within the main template frame; A measuring component, disposed on the main quadrat frame, is used to measure the height and / or cover of herbaceous vegetation within the main quadrat frame.

[0008] Furthermore, the guiding and positioning mechanism includes slide rails arranged longitudinally and transversely on the main body frame, wherein there are two longitudinal slide rails and two transverse slide rails to divide the interior of the main body frame into nine equally sized grids.

[0009] Furthermore, the guiding and positioning mechanism also includes a slider disposed on the screw frame, the slider cooperating with the slide rail and being able to move on the slide rail.

[0010] Furthermore, the measuring component includes a canopy measuring unit for measuring herb canopy coverage, the canopy measuring unit being nine grids formed by the slide rail, the canopy measuring unit being used to estimate canopy coverage.

[0011] Furthermore, the measuring component also includes a height measuring unit for measuring the height of the grass, the height measuring unit being a telescopic electronic ruler embedded in one side of the main sample frame.

[0012] Furthermore, the slide rail is a detachable structure, which can be temporarily erected on the main sample frame during use and removed for storage after use.

[0013] Furthermore, it also includes an auxiliary fixing component located at the bottom of the main sample frame, the auxiliary fixing component including at least four pins that can be inserted into the ground, and an elastic fixing strap for binding the main sample frame to the ground protrusion.

[0014] Furthermore, the bottom edge of the screw-checking frame is provided with an anti-slip pad.

[0015] Furthermore, a groove is provided on one side of the upper part of the screw frame to facilitate hand gripping.

[0016] Compared with the prior art, the superior effects of this utility model are as follows: The integrated herbaceous-Oncomelania snail survey and information recording device for forest and grassland schistosomiasis control monitoring described in this utility model solves the technical problem of spatial separation and data mismatch between herbaceous quadrats and snail frames in traditional methods by setting up a main quadrat frame, snail-collecting sub-frames, and a guiding and positioning mechanism. By integrating two independent survey tools into a unified physical framework, it ensures that the spatial location of each 0.11 square meter snail survey falls precisely within a one-square-meter herbaceous vegetation survey unit. This mandatory spatial nesting relationship provides a data foundation for subsequent accurate "grass-snail" correlation analysis (such as analyzing snail density under herbaceous communities with specific cover and height), reducing statistical errors and analytical uncertainties caused by inconsistent spatial sampling points. The integrated herbaceous snail survey and information recording device for forest and grassland schistosomiasis control monitoring described in this utility model makes cover calculation more convenient. In the prior art, the cover calculation requires dividing each plot of land into one hundred small grids and using the grid counting method to determine the percentage of cover. This device can determine the cover of the entire herbaceous plant area by observing the percentage of the area covered by the vertical projection of the herbaceous plant canopy in each cover measurement unit, thus making the calculation more convenient. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the integrated herbaceous snail survey and information recording device for monitoring schistosomiasis control in forests and grasslands, as described in this utility model embodiment. Figure 2 This is a schematic diagram of the guiding and positioning mechanism in an embodiment of this utility model; Figure 3 This is a schematic diagram of the slide rail structure in an embodiment of this utility model.

[0018] In the diagram, 1-main body frame, 2-screw frame, 31-slide rail, 32-slider, 41-coverage measurement unit, 42-height measurement unit, 51-pin. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments of this utility model and the features in the embodiments can be combined with each other. Example

[0020] like Figure 1 and Figure 2 As shown, this utility model embodiment provides an integrated device for herbaceous snail survey and information recording specifically for monitoring forest and grassland schistosomiasis control, comprising: Main quadratic frame 1 is used to define the survey scope of herbaceous vegetation; At least one snail-collecting frame 2 is used for snail surveys; A guiding and positioning mechanism is set between the main body frame 1 and the screw-check frame 2 to guide the movement and positioning of the screw-check frame 2 within the main body frame 1; The measuring component is set on the main quadratic frame 1 and is used to measure the height and / or cover of herbaceous vegetation within the main quadratic frame 1.

[0021] The main quadrat frame 1 can be made of aluminum alloy, with a hard anodizing treatment on the surface to further improve wear resistance and scratch resistance, avoiding surface damage caused by friction from mud and sand in the field. It is square in shape, with a side length of 1 meter and an overall height of about 2 centimeters. The snail-collecting frame 2 is an independent survey unit, square in shape, with a side length of 0.33 meters and an area of ​​0.11 square meters. It can be made of transparent acrylic or polycarbonate (PC). If there are sharp stones or high-intensity friction in the survey environment, polycarbonate has stronger weather resistance and is less likely to yellow or become brittle under high temperature exposure, making it easier to observe the situation inside the frame directly from above. The guiding and positioning mechanism is set between the main quadrat frame 1 and the snail-collecting frame 2. Its function is to establish a precise two-dimensional coordinate system, which can constrain and guide the smaller snail-collecting frame 2, which is used for microscopic snail surveys, to different preset standard positions inside the larger main quadrat frame 1, which is used for macroscopic vegetation surveys, thereby achieving a strict physical correspondence between the two survey levels in space.

[0022] In summary, by coordinating the main quadrat frame 1, the snail-hunting sub-frame 2, and the guiding and positioning mechanism, the technical problem of spatial separation and data mismatch between herbaceous quadrats and snail frames in traditional methods was solved. By integrating two independent survey tools into a unified physical framework, it was ensured that the spatial location of each 0.11 square meter snail survey precisely falls within a 1 square meter herbaceous vegetation survey unit. This mandatory spatial nesting relationship provides a data foundation for subsequent accurate "grass-snail" correlation analysis (such as analyzing the snail density of herbaceous communities at specific cover and height), and reduces statistical errors and analytical uncertainties caused by inconsistent spatial sampling points.

[0023] In some embodiments, such as Figure 2 As shown, the guiding and positioning mechanism includes slide rails 31 that are longitudinally and transversely separated on the main body frame 1. There are two longitudinal slide rails 31 and two transverse slide rails 31 to divide the interior of the main body frame 1 into nine grids of equal size.

[0024] The slide rail 31 is preferably made of wear-resistant nylon or ultra-high molecular weight polyethylene (UHMWPE). In scenarios involving long-term, high-frequency use, UHMWPE has 3-5 times the wear resistance of nylon, a longer service life, and better low-temperature resistance, making it suitable for winter field surveys. It can be detachably and parallelly installed on the main sample frame 1 via clips or pre-reserved mounting slots. Two longitudinal slide rails and two transverse slide rails are equidistantly arranged, located at one-third and two-thirds of the scale marks along the side length of the main sample frame, respectively, thus naturally dividing the frame into nine perfectly equal large square grids with sides of approximately 33 cm. The grid area is approximately 0.11 square meters. The nine-square grid structure constructed through physical guide rails provides a clear and stable guiding path for the movement of the sampling frames, ensuring the straightness of the movement and the repeatability of the position. In addition, this nine-square grid division directly divides the 1-square-meter macroscopic quadrat into 9 survey units in a standardized manner. This is not only a guiding structure, but also a predefined sampling grid system, which allows subsequent coverage estimation and sampling frame layout to be directly based on this grid system. This simplifies the operation process, avoids the subjectivity and randomness of arbitrary field deployment, and ensures the standardization and comparability of the survey data.

[0025] Based on this, such as Figure 2 and Figure 3 As shown, the guide positioning mechanism also includes a slider 32 disposed on the screw frame 2, the slider 32 cooperating with the slide rail 31 and being able to move on the slide rail 31.

[0026] The slider 32 can be made of wear-resistant plastic or polyoxymethylene (POM). To further reduce friction, a fluorine coating can be applied to the surface of the slider 32. It is detachably fixed (e.g., by threaded connection) to the edge of the screw frame 2. The slide rail 31 has an "I"-shaped groove in its cross-section. The slider 32 can be cylindrical and can rotate within the slide rail 31, allowing it to engage with the slide rail 31 and slide smoothly along its length. Specifically, the slider 32 and the slide rail 31 can be fitted with a clearance, with the clearance controlled within 0.5 mm to ensure smooth movement and reduce friction. This effectively prevents the sub-frames from shaking or shifting during the survey. As a result, the surveyor only needs to hold the screw-checking sub-frame 2 and easily push it to the target grid position along the slide rail 31 to start the screw-fixing survey. After completion, it can be pushed to the next grid. The whole process does not require repeatedly picking up, aligning, and placing individual screw frames. This sliding operation improves the deployment efficiency. At the same time, it ensures that the screw-checking sub-frame 2 can accurately stop at the center position of the grid defined by the slide rail, achieving uniform, complete, and non-overlapping full coverage deployment of nine screw frames within a 1-square-meter area. The spatial positioning accuracy is higher than that of traditional manual visual placement.

[0027] The longitudinal slide rail 31 and the transverse slide rail 31 are connected so that the slider 32 can pass through.

[0028] In some embodiments, the main body frame 1 may adopt a folding hinge design so that it can be folded for easy carrying and transportation in the field.

[0029] The folding design makes it easy for investigators to carry, reducing physical exertion and the risk of equipment damage. This makes it possible to conduct investigations at more remote and complex monitoring sites, thereby expanding the monitoring range. The folding hinge can use existing technical solutions, which will not be elaborated here.

[0030] In some embodiments, the measuring component includes a cover measuring unit 41 for measuring herbaceous cover, the cover measuring unit 41 being nine grids formed by a slide rail, the cover measuring unit 41 being used to calculate the overall cover by counting the percentage of grid area covered by herbaceous vegetation.

[0031] Specifically, investigators observed from above and determined the percentage of the area covered by the vertical projection of the herbaceous plant canopy in each 33 cm × 33 cm grid. The nine percentages were added together to obtain the overall canopy value, making the calculation more convenient.

[0032] In some embodiments, the measuring component further includes a height measuring unit 42 for measuring the height of grass, the height measuring unit 42 being a telescopic electronic ruler embedded in one side of the main body frame 1.

[0033] Specifically, the main body of the electronic ruler (including the display screen and chip) is embedded in a dedicated channel inside the main body frame 1, with only a handle exposed. During measurement, the handle is pulled out to bring out a flexible measuring tape with graduations (or electronic sensing), with a range of 0-100 cm. The measuring tape is straightened and placed vertically on the ground, with its top touching the highest natural point of the herbaceous plant. The sensor at the bottom of the measuring tape or the display screen on the ruler can directly read the height value accurate to 0.1 cm. This integrates the ruler, which originally needed to be carried separately and was easily lost, with the main survey device, realizing tool integration and reducing the equipment burden for field operations.

[0034] In some embodiments, the slide rail 31 is a detachable structure that can be temporarily erected on the main frame 1 during use and removed for storage after use.

[0035] The slide rail 31 can be detached from the main sample frame 1 by screw connection. When not conducting a snail survey or only conducting a vegetation survey, only the lightweight main sample frame 1 can be carried, making the device lighter. When an integrated survey is required, a complete system can be quickly assembled. This "configurable on demand" mode enhances the applicability and flexibility of the device, while avoiding the problems of increased carrying volume and inconvenient storage that may be caused by permanently fixed slide rails. It is particularly suitable for field work scenarios that require long-distance hiking and multi-point surveys.

[0036] In some embodiments, an auxiliary fixing component 5 is also provided at the bottom of the main body template 1. The auxiliary fixing component 5 includes at least four pins 51 that can be inserted into the ground, and an elastic fixing strap for binding the main body template to the ground protrusion.

[0037] Specifically, the pin 51 can be made of stainless steel, such as 316 stainless steel, which has better corrosion resistance than ordinary 304 stainless steel and is suitable for use in environments with high salinity, such as riverbanks and wetlands. The pin 51 is about 30 cm long and about 0.8 cm in diameter, with a sharp tip. The four corners of the main sample frame 1 have through holes, through which the pin can be inserted vertically into the ground. The elastic fixing band is made of high-strength nylon webbing, such as polyester-nylon blended webbing, which has better UV resistance than pure nylon webbing and is not easy to fade or age with long-term outdoor use. It is equipped with hooks and loops, with hooks at both ends, which can be used to bind the frame of the sample frame to the attached... The quadrats are anchored to stable objects such as tree roots and rocks. This overcomes the problem of easy sliding and displacement of quadrats in the field (especially on slopes, wetlands, and grasslands). Through the vertical anchoring of the pin 51 and the lateral reinforcement of the elastic band, a stable three-dimensional fixing system is formed, ensuring that the physical position of the quadrats remains unchanged throughout the entire survey process, whether it is vegetation observation or snail counting. This reduces the change of sampling area caused by the movement of the quadrats, and fundamentally ensures that the observations before and after (such as before and after vegetation clearing) and different observation items (vegetation and snails) are completed on the same exact piece of land, thus ensuring the spatial consistency of the data.

[0038] In some embodiments, the bottom edge of the screw frame 2 is provided with an anti-slip pad, and one side of it is provided with a groove for easy hand gripping.

[0039] Specifically, the anti-slip pad material can be silicone or rubber, and it is fixed to the bottom perimeter of the screw-collecting frame 2 by adhesive or embedded slots. The thickness is about 2-3 mm. The groove is designed on the top edge of the screw-collecting frame 2, with a shape that fits the finger and a moderate depth for easy application of force. In actual use, there will be slight manufacturing tolerances in the fit between the slider 32 and the slide rail 31. During field surveys, factors such as touch by personnel, wind blowing, and slight ground vibration may cause the screw-collecting frame 2 to make slight displacement on the slide rail 31. The anti-slip pad can counteract this slight movement by increasing the friction between the bottom of the screw-collecting frame 2 and the contact surface of the slide rail 31, making the position of the screw-collecting frame 2 more stable and avoiding errors in the range of the screw-collecting survey due to slight displacement. The slide rail 31 is a detachable structure. If the slide rail is damaged in the field and the screw frame 2 needs to be used temporarily after disassembly and storage, the anti-slip pad can be applied directly to the ground (especially in damp and muddy forest and grassland wetlands) to prevent the screw frame 2 from sliding on the ground and ensure the accuracy of the range when conducting independent surveys. The field environment of forest and grassland schistosomiasis control surveys is mostly mud, sand and gravel. During the sliding of the slider 32 and the slide rail 31, mud and sand may enter the mating gap and cause wear. The anti-slip pad can buffer and isolate, reduce the direct friction between the bottom of the screw frame 2 and the slide rail 31, and at the same time prevent mud and sand from entering the gap of the slider 32, extending the service life of the guide positioning mechanism. The hand-held groove improves the convenience of human-computer interaction. When the surveyor moves the sub-frame along the slide rail, he can easily and firmly grasp and apply force through the groove. Even when wearing gloves or with wet hands, it is easy to operate, improving the efficiency and accuracy of movement.

[0040] In some embodiments, a location recording module (existing technology) is also included. The location recording module includes a QR code label fixed on the main sample frame 1 and a portable smart terminal capable of scanning the QR code. The QR code is associated with data structures of herbaceous vegetation survey forms and snail survey forms.

[0041] The location recording module creates a digital identity and structured entry point for field survey data, realizing a paradigm shift from paper-based handwritten notes to electronic and systematic management. A QR code label (protected with a scratch-resistant coating) fixedly affixed to each main quadrat frame 1 serves as its physical identity ID. This code uniquely links to two predefined standardized data structures in the system: one is a herbaceous vegetation survey form, with fields including quadrat number, species, abundance, cover, height, and whether it is a snail-suppressing plant; the other is a snail survey form, with fields including snail frame number and number of live snails. A supporting portable smart terminal (such as a ruggedized tablet or mobile phone with a dedicated app) acts as a data collector. By scanning the QR code, it automatically binds the current survey physical device to the digital form and uses the terminal's built-in GPS module to automatically capture and bind metadata such as latitude, longitude, altitude, and time of the sample plot. Thus, spatial location information, quadrat physical numbers, and survey content are electronically linked and stored at the moment of collection, ensuring that each data point has a complete spatiotemporal label, data integrity, and traceability.

[0042] Based on this, the portable smart terminal has a built-in dedicated application with GPS positioning function (existing technology) to automatically record the location information of the sample plot after scanning the QR code, and supports manual or selective input of survey data related to the herbaceous vegetation survey form and snail survey form.

[0043] By scanning, locating, and filling out forms, the process ensures that each set of ecological data (herbs and snails) is firmly bound to its precise geographical location and timestamp the moment it is generated, thus solving the problem of inaccurate data and location information in traditional methods.

[0044] This utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims.

Claims

1. A specialized integrated device for monitoring and recording information on herbaceous snails and controlling schistosomiasis in forests and grasslands, characterized in that, include: The main sample box (1) is used to define the survey scope of herbaceous vegetation; At least one snail-inspection frame (2) is used for snail surveys; A guiding and positioning mechanism is provided between the main body frame (1) and the screw-checking frame (2) for guiding the movement and positioning of the screw-checking frame (2) within the main body frame (1); A measuring component is provided on the main sample frame (1) for measuring the height and / or cover of herbaceous vegetation within the main sample frame (1).

2. The integrated herbaceous snail survey and information recording device for forest and grassland schistosomiasis control monitoring according to claim 1, characterized in that, The guiding and positioning mechanism includes slide rails (31) that are longitudinally and transversely separated on the main body frame (1). There are two longitudinal slide rails (31) and two transverse slide rails (31) to divide the interior of the main body frame (1) into nine grids of equal size.

3. The integrated herbaceous snail survey and information recording device for forest and grassland schistosomiasis control monitoring according to claim 2, characterized in that, The guiding and positioning mechanism also includes a slider (32) disposed on the screw frame (2), the slider (32) cooperating with the slide rail (31) and being able to move on the slide rail (31).

4. The integrated herbaceous snail survey and information recording device for forest and grassland schistosomiasis control monitoring according to claim 2, characterized in that, The measuring component includes a cover measuring unit (41) for measuring the cover of herbs, the cover measuring unit (41) being nine grids formed by the slide rail, the cover measuring unit (41) being used to estimate the cover.

5. The integrated herbaceous snail survey and information recording device for forest and grassland schistosomiasis control monitoring according to claim 4, characterized in that, The measuring component also includes a height measuring unit (42) for measuring the height of grass, the height measuring unit (42) being a telescopic electronic ruler embedded in one side of the main body frame (1).

6. The integrated herbaceous snail survey and information recording device for forest and grassland schistosomiasis control monitoring according to claim 2, characterized in that, The slide rail (31) is a detachable structure that can be temporarily erected on the main sample frame (1) during use and removed for storage after use.

7. The integrated herbaceous snail survey and information recording device for forest and grassland schistosomiasis control monitoring according to claim 1, characterized in that, It also includes an auxiliary fixing component (5) set at the bottom of the main sample frame (1), the auxiliary fixing component (5) including at least four pins (51) that can be inserted into the ground, and an elastic fixing strap for binding the main sample frame to the ground protrusion.

8. The integrated herbaceous snail survey and information recording device for forest and grassland schistosomiasis control monitoring according to claim 1, characterized in that, The bottom edge of the screw-out frame (2) is provided with an anti-slip pad.

9. The integrated herbaceous snail survey and information recording device for forest and grassland schistosomiasis control monitoring according to claim 1, characterized in that, The upper side of the screw-out frame (2) is provided with a groove for easy hand holding.

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