A Rana dybowskii sex identification system and sex identification method

Abstract

The present invention relates to the technical field of gender identification of Rana chensinensis, and particularly to a gender identification system for Rana chensinensis. It includes a gender characteristic acquisition system and a gender characteristic identification system; the gender characteristic acquisition system includes a placement element, an image acquisition element, and an angle adjustment element. In the present invention, gender identification can be carried out separately for each Rana chensinensis to avoid mutual occlusion between different Rana chensinensis, and the identification accuracy is high. The present invention can also limit the posture of Rana chensinensis so that under a unified shooting angle, the postures of Rana chensinensis are relatively unified, which is beneficial to the establishment of an image database, thus facilitating the continuous learning and optimization of the analysis algorithm program formula, and further improving the accuracy of the analysis results. The present invention also provides a gender identification method for Rana chensinensis, which is carried out by using the aforementioned gender identification system for Rana chensinensis; the practicability is relatively good.

Description

Technical Field

[0001] The present invention relates to the technical field of gender identification of Rana chensinensis, and particularly to a gender identification system and method for Rana chensinensis. Background Art

[0002] In the field of Rana chensinensis breeding technology, gender identification is crucial for improving breeding efficiency and economic returns. Since female Rana chensinensis are generally larger in size and grow faster, they have higher commercial value in the market. However, traditional gender identification methods face challenges in terms of cost and accuracy.

[0003] Although genetic gender DNA identification technology can provide highly accurate results, the application of this method is limited in actual breeding. This is because DNA identification requires complex laboratory equipment and professional technical personnel, and also involves time-consuming sample collection and processing procedures. In addition, the cost of this method is relatively high and it is not suitable for large-scale applications, especially not convenient to promote in small and medium-sized farms. Therefore, the breeding industry's demand for a simple, economical and rapid gender identification method is becoming increasingly urgent.

[0004] In addition to DNA identification, appearance feature identification method is another traditional identification method. Appearance feature identification usually includes observing the body size, skin texture and color of Rana chensinensis, as well as the mating pads on the inner side of the front limbs of male Rana chensinensis during the breeding season. These features can be observed with the naked eye without complex equipment and technology. However, this method also has limitations. Manual identification relies on the experience and judgment ability of the observer, and it is necessary to observe and judge each feature on the appearance of Rana chensinensis manually in turn, which is easily affected by subjective factors and prone to inconsistent or inaccurate identification results. In addition, the manual identification work efficiency is low and it is difficult to meet the rapid identification needs of a large number of Rana chensinensis. Summary of the Invention

[0005] The present invention provides a gender identification system and method for Rana chensinensis, which can overcome certain or some defects of the prior art.

[0006] According to a gender identification system for Rana chensinensis of the present invention, it includes a gender feature acquisition system and a gender feature identification system;

[0007] The gender feature acquisition system includes a placement element, an image acquisition element and an angle adjustment element,

[0008] The placement element is configured to be able to carry the Rana chensinensis to be gender-identified through the image acquisition area of the image acquisition element; meanwhile, the posture of the Rana chensinensis on the placement element can be restricted to present a flat-lying state,

[0009] An image acquisition component, configured to be able to acquire images of forest frogs passing through the image acquisition area and obtain gender identification images.

[0010] An angle adjustment component, configured to be able to adjust the angle of the forest frog passing through the image acquisition area to cooperate with the image acquisition component to obtain gender identification images at different shooting angles.

[0011] The gender feature identification system includes a receiving module, an analysis module, and an output module.

[0012] The receiving module is used to receive the gender identification images.

[0013] The analysis module is used to analyze and process the received gender identification images and obtain an analysis result. The analysis and processing are carried out based on multiple characteristic parameters.

[0014] The output module is used to output the analysis result for display or recording.

[0015] Preferably, the placement component includes:

[0016] A placement part; forming a placement area for placing forest frogs to be gender-identified; and being able to carry the forest frogs along a moving route to pass through the image acquisition area.

[0017] The first posture limiting parts, which are arranged at the placement area, and there are multiple of them; and are respectively and correspondingly positioned and connected with the four limbs of the forest frog to limit the posture of the forest frog with its limbs extending outward.

[0018] Preferably, the placement part includes a sliding seat and a placement seat.

[0019] The sliding seat is slidably arranged at an annular carrying track and can slide along the carrying track; the carrying track forms the moving route.

[0020] The placement seat is rotatably arranged at the sliding seat through a damping rotating shaft; a placement groove is recessed at the placement seat.

[0021] Preferably, the positioning part includes an elastic rope arranged at the placement area and a positioning buckle arranged at the end of the elastic rope.

[0022] The positioning buckle is used to buckle at the limb part of the forest frog and cooperate with the elastic rope to keep the limb part of the forest frog in a tendency of being stretched outward relative to the trunk of the forest frog.

[0023] Preferably, the image acquisition component includes:

[0024] The image acquisition part, which is arranged at at least one of the following positions: directly above or directly below the image acquisition area.

[0025] The second posture restricting part; disposed on the entry side of the image acquisition area along the moving route; the second posture restricting part has a first end and a second end along the moving route; the part from the first end to the second end is configured as a posture restricting path that becomes narrower and shallower from wide to narrow; the Rana chensinensis passing through the posture restricting path can be gradually restricted to a posture facing the middle of the placement area and lying flat.

[0026] Preferably, the image acquisition part includes an image acquisition camera installed through a mounting bracket;

[0027] The image acquisition camera is used to acquire images of the Rana chensinensis whose postures are restricted by the first posture restricting part and the second posture restricting part from directly above or directly below to obtain the gender identification image;

[0028] The second posture restricting part includes a guiding plate;

[0029] The guiding plate is installed at the mounting bracket through a mounting plate; a groove part is formed by recessing at the bottom wall, and the two ends of the groove part respectively form the first end and the second end; the area between the inner wall of the groove part and the placement plane of the placement area is used to accommodate the Rana chensinensis to be gender-identified.

[0030] Preferably, the angle adjusting element includes:

[0031] An adjusting part, which can drive the placement seat to rotate around the first axis when the placement seat is located in the image acquisition area; the first axis is coplanar with the plane where the moving route is located.

[0032] Preferably, the adjusting part includes:

[0033] An adjusting plate; located above the image acquisition area and in a U-shape; made of a transparent material; both sides are rotatably installed at the mounting bracket located in the image acquisition area through adjusting rotating shafts; the smooth bottom wall can abut against the top wall of the placement seat for rotational transmission; when not rotated in the initial state, the bottom wall of the adjusting plate is flush with the second end;

[0034] The adjusting rotating shaft on the first side of the adjusting plate is connected to the driving part, and the adjusting rotating shaft on the second side is connected to the mounting bracket; the end of the adjusting rotating shaft on the second side is rotatably connected to the bearing provided on the outer wall of the mounting bracket;

[0035] A clamping block, which is slidably arranged along the first axis on the adjusting rotating shaft on the second side of the adjusting plate; a plurality of card slots for positioning and cooperating with the clamping block are formed on the inner wall of the mounting bracket;

[0036] An electric push rod is fixed to the adjusting rotating shaft provided with the clamping block and can push the clamping block into or out of a certain card slot along the first axis.

[0037] Preferably, the characteristic parameters include at least one of the following: the nuptial pad on the front paw, the back color, the back markings, the belly color, the belly spots, the front limb length; and whether there is a vocal sac.

[0038] The present invention also provides a method for identifying the gender of Rana chensinensis, which is carried out by using the aforementioned gender identification system for Rana chensinensis; specifically, it includes the following steps:

[0039] Step S1: Place the Rana chensinensis to be gender-identified on the placement element.

[0040] Step S2: Move the placement element to the image acquisition area and stop moving.

[0041] Step S3: Use the image acquisition element to collect images of the Rana chensinensis located in the image acquisition area; during the image acquisition process, adjust the Rana chensinensis through the angle adjustment element to obtain gender identification images at different shooting angles.

[0042] Step S4: Transmit the obtained gender identification images to the receiving module and be received.

[0043] Step S5: The analysis module analyzes the received gender identification images and obtains an analysis result.

[0044] Step S6: The output module outputs the analysis result.

[0045] Step S7: Remove the Rana chensinensis after the identification from the placement element, place the next Rana chensinensis, and repeat the above steps.

[0046] Compared with the prior art, the present invention has the following remarkable improvements:

[0047] (1) In the present invention, the gender of each Rana chensinensis can be identified individually to avoid mutual occlusion between different Rana chensinensis, and the identification accuracy is high.

[0048] (2) The present invention can limit the posture of the Rana chensinensis so that the postures of the Rana chensinensis are relatively unified under a unified shooting angle, which is beneficial to the establishment of an image database, thus facilitating the continuous learning and optimization of the analysis algorithm program formula, and further improving the accuracy of the analysis result.

[0049] (3) The present invention can also make the placement seat where the Rana chensinensis is located perform a rotational movement through the adjustment plate, and the two are only transmitted by abutting, so that it will not affect the movement of the placement seat into or out of the image acquisition area along the movement route, and the operation is stable and convenient. Description of the Drawings

[0050] Figure 1 It is a physical picture of the Rana chensinensis to be gender-identified in the present invention;

[0051] Figure 2 It is a schematic structural diagram of the gender feature acquisition system in the present invention;

[0052] Figure 3 It is a flowchart of the gender identification method in the present invention;

[0053] Figure 4 is Figure 2 a schematic structural diagram from another perspective;

[0054] Figure 5 It is a schematic structural diagram of the component placement in the present invention;

[0055] Figure 6 It is a schematic structural diagram of the image acquisition component and the angle adjustment component in the present invention;

[0056] Figure 7 is Figure 6 a schematic structural diagram from another perspective;

[0057] Figure 8 It is a schematic structural diagram of the adjustment plate and the adjustment rotating shaft in the present invention;

[0058] Figure 9 It is a schematic structural diagram of the placement component moving to the image acquisition area and stopping directly below the adjustment plate;

[0059] Figure 10 is Figure 7 an enlarged schematic structural diagram of part A in Detailed implementation mode

[0060] Example 1

[0061] This embodiment provides a Rana chensinensis gender identification system, which includes a gender feature acquisition system and a gender feature identification system;

[0062] The gender feature acquisition system includes a placement component 210, an image acquisition component 220 and an angle adjustment component 230,

[0063] The placement component 210 is configured to be able to carry the Rana chensinensis to be gender-identified through the image acquisition area of the image acquisition component 220; at the same time, the posture of the Rana chensinensis on the placement component 210 can be restricted to present a flat state,

[0064] The image acquisition component 220 is configured to be able to perform image acquisition on the Rana chensinensis passing through the image acquisition area and obtain a gender identification image,

[0065] The angle adjustment component 230 is configured to be able to adjust the angle of the Rana chensinensis passing through the image acquisition area to cooperate with the image acquisition component 220 to obtain gender identification images at different shooting angles;

[0066] The gender identification system includes a receiving module, an analysis module, and an output module;

[0067] The receiving module is used to receive the gender identification image,

[0068] The analysis module is used to analyze and process the received gender identification image and obtain an analysis result. The analysis and processing are carried out based on multiple feature parameters.

[0069] The output module is used to output the analysis result for display or recording.

[0070] Specifically, since the Rana chensinensis is a live body and the distribution of the feature parameters for Rana chensinensis gender identification is relatively scattered; when taking pictures of Rana chensinensis, first, because the Rana chensinensis is small in size and the number of the breeding population is large, when directly taking pictures of multiple Rana chensinensis at the same time, it is easy for different Rana chensinensis to block each other, resulting in the gender characteristics being blocked and missed in the collection; second, even if a camera is used to collect Rana chensinensis one by one, due to the fact that the Rana chensinensis is a live body, when collecting images, the postures of the Rana chensinensis itself are different, and the feature parameters of the Rana chensinensis are also easily blocked or partially blocked by other parts of its own body, resulting in the omission of feature collection, which directly affects the subsequent identification result; third, the difficulty of taking pictures is relatively large. The Rana chensinensis is a live body and is difficult to control, and the existing picture-taking devices are difficult to be directly applied;

[0071] During the use of the gender identification system in this embodiment, the placement element 210 and the picture-taking element 220 can jointly form an assembly line for Rana chensinensis gender identification, so that compared with manual individual identification, the identification efficiency can be improved.

[0072] Moreover, during the identification process, the posture of the Rana chensinensis can be restricted; thus, for different Rana chensinensis, first, the Rana chensinensis presents a flat-lying state, and the characteristics of the Rana chensinensis itself are not easily blocked, so as to preferably avoid the situation of missing feature collection; second, the position of the picture-taking element 220 remains unchanged, and the picture-taking angle is the same each time, and the posture of the Rana chensinensis is also restricted, so that each obtained gender identification image can belong to the same frame template; which is beneficial to the analysis and processing of the subsequent analysis module;

[0073] First, under the same frame template, the accuracy of the analysis result obtained by the image analysis algorithm in the analysis module for the feature parameters can be higher; specifically, the image analysis algorithm divides the part areas where different feature parameters are located into analysis areas such as A, B, C, etc. After receiving the gender identification image each time, the area where the feature parameters are located in each picture can preferably correspond to the analysis area set in the algorithm;

[0074] Second, this method can also facilitate the collection of more external identification data of forest frogs. By comparing the analysis results of these data with the actual results, the recognition formula algorithm for gender identification based on the external appearance of forest frogs can be continuously optimized. Subsequently, by adjusting the weights between multiple characteristic parameters or the range of the analysis area, the accuracy of the identification can be continuously improved. Furthermore, the accuracy gap between external appearance identification and DNA identification can be significantly reduced. Thus, on the premise of ensuring high identification accuracy, the identification cost and time consumption can be greatly reduced, which has great economic practical value for forest frog farming.

[0075] In this embodiment, the characteristic parameters include at least one of the following: nuptial pads on the front claws, dorsal color, dorsal markings, belly color, belly spots, front limb length; and whether there is a vocal sac.

[0076] First, there is a large grayish-black bump on the thumb of the front palm of male forest frogs, one on each side, which are the nuptial pads, while female forest frogs do not have them.

[0077] Second, the back of female toads is black, with brown and light black markings, and the warts are yellow; the back of male toads is blackish-green, with light markings.

[0078] Third, the belly of male frogs is generally grayish-white with gray spots; the belly of female frogs is generally yellowish-red with few spots.

[0079] Fourth, female frogs generally have slender front limbs, while male frogs generally have short and thick front limbs.

[0080] Fifth, male frogs usually have vocal sacs, which play a role in their calls, while female frogs do not.

[0081] The identification system in this embodiment can capture images through image acquisition and photograph the parts corresponding to the above characteristic parameters, and is not easily blocked or missed, so as to improve the accuracy of the identification results.

[0082] This embodiment also provides a method for gender identification of Rana dybowskii, which is carried out by using the aforementioned gender identification system for Rana dybowskii; it specifically includes the following steps:

[0083] Step S1: Place the forest frog to be gender-identified at the placement element 210.

[0084] Step S2: Move the placement element 210 to the image acquisition area and stop moving.

[0085] Step S3: Collect images of the forest frog located in the image acquisition area through the image acquisition element 220; during the image acquisition process, adjust the forest frog through the angle adjustment element 230 to obtain gender identification images at different shooting angles.

[0086] Step S4: Transmit the obtained gender identification image to the receiving module and have it received;

[0087] Step S5: The analysis module analyzes the received gender identification image and obtains an analysis result;

[0088] Step S6: The output module outputs the analysis result.

[0089] Step S7: Remove the Rana chensinensis after the identification from the placement element 210, place the next Rana chensinensis, and repeat the above steps.

[0090] In this embodiment, the placement element 210 includes:

[0091] A placement part; forming a placement area for placing the Rana chensinensis to be gender-identified; and capable of carrying the Rana chensinensis along a moving route to pass through the image acquisition area;

[0092] The first posture limiting part, provided at the placement area, with multiple ones; and corresponding to the four limbs of the Rana chensinensis for positioning connection one by one to limit the posture of the Rana chensinensis with its four limbs stretching outwards.

[0093] Specifically, in this embodiment, the first posture limiting part can form a first posture limitation for the Rana chensinensis, similar to pre-limiting and positioning.

[0094] Embodiment 2

[0095] Same as Embodiment 1, the difference from Embodiment 1 is that: in this embodiment, the placement part includes a sliding seat 510 and a placement seat 520;

[0096] The sliding seat 510 is slidably arranged at the annular carrier track 240 and can slide along the carrier track 240; the carrier track 240 forms the moving route;

[0097] The sliding seat 510 can be driven by a driving means such as a motor to perform circular rotation; a plurality of mesh bags 260 are provided inside the carrier track 240 for sorting the Rana chensinensis after the identification, and Rana chensinensis of different genders or different characteristic parameters can be directly sorted into different mesh bags 260 for subsequent centralized research and analysis;

[0098] The bottom wall of the carrier track 240 is also provided with a plurality of support legs 250, so that the entire annular acquisition system can be directly and stably placed in the breeding area; then the user can directly take Rana chensinensis from the area and place them in the placement seat 520 to form a circular recycling and perform gender identification.

[0099] In addition, the annular transport track 240 itself separates the inner side and the outer side. When the user works on the outer side, the inner side can be more safely matched with the net bag 260 as a sorting area without affecting the user's work on the outer side. At the same time, the sorting area will not be disturbed by the work on the outer side, which is convenient and safe to use.

[0100] The placement seat 520 is rotatably disposed on the sliding seat 510 via a rotating shaft with damping; a placement groove 530 is formed in a recessed manner on the placement seat 520 .

[0101] The damped rotating shaft can maintain the horizontal state of the placement seat 520 without external force. The placement slot 530 runs through the moving direction of the moving route to facilitate placement and subsequent sorting. It can be understood that the rotationally arranged placement seat 520 can cooperate with the angle adjustment element 230 to collect images at different angles.

[0102] In this embodiment, the positioning portion includes an elastic rope 540 disposed at the placement area and a positioning buckle 550 disposed at the end of the elastic rope 540;

[0103] The positioning buckle 550 is used to be buckled on the limbs of the wood frog, and cooperates with the elastic rope 540 to keep the limbs of the wood frog from stretching outward relative to the trunk of the wood frog.

[0104] Specifically, the positioning part in this embodiment is in the form of an elastic rope 540 and a positioning buckle 550. The user only needs to buckle the limbs of the forest frog with the positioning buckle 550, which is easy to operate; and can be preferably applied to living forest frogs; under the elastic force of the elastic rope 540, the limbs of the forest frog will be stretched outward, so that the posture of the forest frog is restricted and tends to lie flat, so as to facilitate subsequent picture taking; at the same time, the elasticity of the elastic rope 540 itself also has better versatility for forest frogs of different sizes.

[0105] Example 3

[0106] The same as the first embodiment, but different from the first embodiment is that: in the present embodiment, the image acquisition component 220 includes:

[0107] The image acquisition unit is provided at at least one of the following locations: directly above or directly below the image acquisition area;

[0108] A second posture limiting portion; arranged at the entrance side of the map collection area along the moving route; the second posture limiting portion has a first end 711 and a second end 712 along the moving route; the portion from the first end 711 to the second end 712 is constructed as a posture limiting path from wide to narrow and from deep to shallow; the forest frog passing through the posture limiting path can be gradually restricted to a posture of lying flat toward the middle of the placement area.

[0109] It is understandable that after the forest frog is limited by the first posture limiting part, its limbs can be stretched and positioned better, but because the forest frog is a living body, it is still difficult to maintain the posture of its trunk in a better consistency.

[0110] In this embodiment, the second posture restriction unit cooperates with the aforementioned moving route to restrict the posture of the forest frog for the second time; specifically, when the placement unit moves along the moving route and passes through the posture restriction path; first, the forest frog in the placement area is first squeezed gradually toward the middle of the placement area by the posture restriction path from wide to narrow; second. The forest frog in the placement area will also be gradually squeezed downward by the posture restriction path from deep to shallow, and finally be clamped on the placement surface of the placement area, so that the posture located in the middle of the placement area and lying flat enters the image collection area with the placement unit; so that it can cooperate with the image collection unit located directly above or directly below to collect images and ensure a better shooting angle; so as to facilitate subsequent image collection and analysis.

[0111] In this embodiment, the image acquisition unit includes an image acquisition camera 610 installed by a mounting frame 620;

[0112] The image acquisition camera 610 is used to acquire an image from directly above or directly below the wood frog whose posture is restricted by the first posture restriction part and the second posture restriction part, so as to obtain the sex identification image;

[0113] The second posture limiting portion includes a guide plate 640;

[0114] The guide plate 640 is installed on the mounting frame 620 through the mounting plate 630; a groove 710 is formed in a depression at the bottom wall, and the two ends of the groove 710 respectively form the first end 711 and the second end 712; the area between the inner wall of the groove 710 and the placement plane of the placement area is used to accommodate the forest frog to be sexed.

[0115] It can be understood that in this embodiment, the second posture restriction is achieved specifically through the groove 710 at the guide plate 640, and the posture restriction process is stable and reliable.

[0116] Example 4

[0117] The same as embodiment 2 is different from embodiment 1 in that: in this embodiment, the angle adjustment element 230 includes:

[0118] The adjustment part is used to drive the placement seat 520 to rotate around a first axis when the placement seat 520 is located in the image collection area; the first axis is coplanar with the plane where the moving route is located.

[0119] The adjustment unit comprises:

[0120] Adjusting plate 810; located above the image acquisition area and in a U-shape; made of transparent material; both sides are rotatably mounted on the mounting frame 620 located in the image acquisition area through adjusting rotating shafts 820 respectively; the smooth bottom wall can abut against the top wall of the placing seat 520 for rotational transmission; when in the initial state and not rotated, the bottom wall of the adjusting plate 810 is flush with the second end 712; a through hole is formed in the middle of the mounting frame 620, and the adjusting plate 810 can rotate at the through hole.

[0121] Specifically, when the placing seat 520 enters the image acquisition area, the adjusting plate 810 itself can first directly rest on the aforementioned guiding plate 640 to continue restricting the posture of the forest frog; then when the placing seat 520 reaches directly below the adjusting plate 810 along the moving route, the adjusting plate 810 is controlled by the servo motor 650 to perform a rotational movement; when the adjusting plate 810 performs a rotational movement, it can directly abut against the placing seat 520, that is, by abutting, rather than fixedly connecting, one side of the placing seat 520 is lifted, and the rotational adjustment of the position of the forest frog is achieved.

[0122] Further, when resetting is required after image acquisition is completed, only by rotating the adjusting plate 810 in the opposite direction, the adjusting plate 810 will press down the lifted side of the placing seat 520 and directly achieve resetting, with stable and convenient operation. After resetting, since there is no fixed connection between the placing seat 520 itself and the adjusting plate 810, the placing seat 520 can still continue to move out of the image acquisition area normally along the moving route, and during the whole process, the connection of the positioning buckle 550 to the limbs of the forest frog can ensure anti-detachment, and the bottom of the adjusting plate 810 and the inner wall of the groove part 710 are kept smooth, which can preferably ensure the stable passage of the forest frog.

[0123] The adjusting rotating shaft 820 on the first side of the adjusting plate 810 is connected to the driving part, and the adjusting rotating shaft 820 on the second side is connected to the mounting frame 620; the end of the adjusting rotating shaft 820 on the second side is rotatably connected to the bearing 910 provided on the outer wall of the mounting frame 620.

[0124] A clamping block 1010 is slidably arranged along the first axis on the adjusting rotating shaft 820 on the second side of the adjusting plate 810; a plurality of clamping grooves 1020 for positioning and cooperating with the clamping block 1010 are formed on the inner wall of the mounting frame 620.

[0125] An electric push rod 1030 is fixed to the adjusting rotating shaft 820 provided with the clamping block 1010 and can push the clamping block 1010 into or out of a certain clamping groove 1020 along the first axis.

[0126] That is, the adjustment rotating shaft 820 on the second side has a rotating state and a locking state. In the rotating state, the clamping block 1010 is not positioned and fitted, and the adjustment rotating shaft 820 can rotate normally through the bearing 910. In the locking state, the clamping block 1010 is snapped into the clamping groove 1020 located at the inner side wall of the mounting bracket 620, thereby locking the adjustment rotating shaft 820.

[0127] Further, the adjustment plate 810 in this embodiment needs to rotate, so it needs to be controlled by electric, pneumatic and other means. Since the placement seat 520 is driven to rotate by the adjustment plate 810, the placement seat 520, the Rana chensinensis and the adjustment plate 810 are in a state with a tendency to rotate under the action of gravity. At this time, the generated torque needs to be borne by the servo motor 650, which may cause the rotation deviation of the placement seat 520 and result in a change in the shooting angle, which may affect the subsequent image recognition and even damage the output shaft of the servo motor 650.

[0128] Therefore, in this embodiment, the electric push rod 1030 cooperates with the clamping block 1010 to offset the torque. During actual operation, the multiple angles to be rotated are in an arithmetic progression, so that the multiple clamping grooves 1020 are distributed in a circular pattern and correspond to the angles to be rotated. On the one hand, it can ensure the accuracy of the rotation angle to ensure the accuracy of subsequent image processing; on the other hand, it can also protect the driving part.

[0129] Embodiment 5

[0130] Similar to Embodiment 1, this embodiment combines at least one of the improvements in Embodiments 2-4 into Embodiment 1.

[0131] It is easy to understand that those skilled in the art can combine, split, recombine, etc. the embodiments of the present application on the basis of one or several embodiments provided by the present application to obtain other embodiments, and these embodiments do not exceed the protection scope of the present application.

[0132] The above schematically describes the present invention and its implementation manners. This description is not restrictive. What is shown in the embodiments is only part of the implementation manners of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative work without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A sex identification system for Rana edulis, characterized in that: Including gender characteristics collection system and gender characteristics identification system; The gender feature acquisition system comprises a placement element (210), an image acquisition element (220) and an angle adjustment element (230). The placement element (210) is configured to carry the forest frog to be sexed through the sampling area of ​​the sampling element (220); and the posture of the forest frog on the placement element (210) can be restricted to present a lying flat state. The image collection element (220) is configured to collect images of forest frogs passing through the image collection area and obtain images for sex identification. An angle adjustment element (230) is configured to adjust the angle of the forest frog passing through the image collection area, so as to cooperate with the image collection element (220) to obtain gender identification images at different shooting angles; The gender feature identification system includes a receiving module, an analyzing module and an output module; A receiving module, used for receiving the gender identification image, An analysis module is used to analyze and process the received gender identification image and obtain an analysis result, wherein the analysis is based on multiple feature parameters. An output module, used for outputting the analysis results for display or recording; The placement element (210) comprises: A placement section; forming a placement area for placing the forest frog to be sexed; and being able to carry the forest frog along a moving route to pass through the map collection area; The first posture limiting part is disposed in the placement area and has a plurality of them; and is positioned and connected with the four limbs of the forest frog in a one-to-one correspondence, so as to limit the posture of the forest frog in which the four limbs extend outward; The placement portion comprises a sliding seat (510) and a placement seat (520); A sliding seat (510) is slidably disposed on the annular carrying track (240) and is capable of sliding along the carrying track (240); the carrying track (240) forms the moving route; The placement seat (520) is rotatably disposed on the sliding seat (510) via a rotating shaft with damping; a placement groove (530) is formed in a recessed manner on the placement seat (520); The image acquisition component (220) comprises: The image acquisition unit is provided at least one of the following locations: directly above or directly below the image acquisition area; A second posture limiting portion; arranged at the entrance side of the map collection area along the moving route; the second posture limiting portion has a first end (711) and a second end (712) along the moving route; the portion from the first end (711) to the second end (712) is configured as a posture limiting path from wide to narrow and from deep to shallow; the wood frog passing through the posture limiting path can be gradually limited to a posture of lying flat toward the middle of the placement area; The angle adjustment element (230) comprises: The adjusting part is used to drive the placement seat (520) to rotate around a first axis when the placement seat (520) is located in the image collection area; the first axis is coplanar with the plane where the moving route is located; the adjusting part comprises: The adjustment plate (810) is located above the image collection area and is in the shape of a cross; it is made of a transparent material; its two sides are rotatably mounted on a mounting frame (620) located in the image collection area through adjustment shafts (820); its smooth bottom wall can abut against the top wall of the placement seat (520) for rotational transmission; in the initial state when not rotating, the bottom wall of the adjustment plate (810) is flush with the second end (712).

2. A sex identification system for Rana edulis according to claim 1, characterized in that: The positioning portion comprises an elastic rope (540) arranged at the placement area and a positioning buckle (550) arranged at the end of the elastic rope (540); The positioning buckle (550) is used to be buckled on the limbs of the wood frog, and cooperates with the elastic rope (540) to maintain the tendency of the limbs of the wood frog to stretch outward relative to the trunk of the wood frog.

3. A sex identification system for Rana edulis according to claim 1, characterized in that: The image acquisition unit comprises an image acquisition camera (610) mounted via a mounting frame (620); The image collection camera (610) is used to collect images from directly above or directly below the wood frog whose posture is restricted by the first posture restriction part and the second posture restriction part, so as to obtain the sex identification image; The second posture limiting portion includes a guide plate (640); The guide plate (640) is mounted on the mounting frame (620) via the mounting plate (630); a groove (710) is formed in a depression at the bottom wall, and two ends of the groove (710) respectively form the first end (711) and the second end (712); the area between the inner wall of the groove (710) and the placement plane of the placement area is used to accommodate the wood frog to be sexed.

4. A sex identification system for Rana edulis according to claim 1, characterized in that: The adjustment shaft (820) on the first side of the adjustment plate (810) is connected to the driving member, and the adjustment shaft (820) on the second side is connected to the mounting frame (620); the end of the adjustment shaft (820) on the second side is rotatably connected to a bearing (910) provided on the outer wall of the mounting frame (620); The adjustment unit comprises: A clamping block (1010), the clamping block (1010) is slidably disposed along the first axis at the adjustment shaft (820) on the second side of the adjustment plate (810); a plurality of clamping grooves (1020) for positioning and cooperating with the clamping block (1010) are formed on the inner wall of the mounting frame (620); The electric push rod (1030) is fixed to the adjustment shaft (820) provided with the clamping block (1010), and can push the clamping block (1010) into or out of a certain clamping slot (1020) along the first axis.

5. A sex identification system for Rana edulis according to any one of claims 1 to 4, characterized in that: The characteristic parameters include at least one of the following: the nuptial pads on the front paws, the back color, the back markings, the belly color, the belly spots, the length of the front limbs; and whether there is a vocal sac.

6. A method for sex identification of Rana edulis, characterized in that: The method comprises the following steps: using a sex identification system of a Northeast Forest Rana described in any one of claims 1 to 5; Step S1, placing the wood frog to be sexed on a placement element (210); Step S2, moving the placement element (210) to the image collection area and stopping the movement; Step S3, collecting images of the forest frog located in the image collection area by means of the image collection element (220); during the image collection process, adjusting the forest frog by means of the angle adjustment element (230); and obtaining gender identification images at different shooting angles; Step S4, transmitting the obtained gender identification image to the receiving module, and receiving it; Step S5: the analysis module analyzes the received gender identification image and obtains the analysis result; Step S6, the output module outputs the analysis result; Step S7, the identified forest frog is removed from the placement element (210), and the next forest frog is placed, and the above steps are repeated.

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