Pork channel point weight estimation device and weight estimation method thereof

Abstract

The invention discloses a pork channel counting and weight estimating device, and relates to the technical field of weight estimating devices.The device comprises a channel body, an n-shaped frame is installed in the channel body, and multiple sets of weight detecting mechanisms are installed on the inner walls of the two sides of the n-shaped frame; the weight detection mechanism comprises a horizontally-arranged inclined rod, and one end of the inclined rod is hinged to the inner wall of the n-shaped frame. A turn number counter is arranged in the rolling wheel and is used for recording the number of rotation turns of the rolling wheel; elastic telescopic rods are mounted on the sides, close to the inner wall of the n-shaped frame, of the inclined rods, and pressure sensors are mounted at the tail ends of the elastic telescopic rods; the number of turns counter and the pressure sensor are in communication connection with the data processing system, the number of turns counter, the pressure sensor and the camera transmit detection data to the data processing system, the data processing system processes the received detection data to obtain the number of pigs and the weight of each pig, and the whole process is convenient, rapid, time-saving and labor-saving.

Description

Technical Field

[0001] The invention relates to the technical field of weight estimation devices, and in particular to a pork channel counting weight estimation device and a weight estimation method thereof. Background Art

[0002] Pig counting and weight estimation is an important technical means to improve production management efficiency in modern pig farming and is of vital importance to the pig farming industry.

[0003] In the existing technology, point weight estimation can be carried out by visual observation combined with the pig growth curve estimation method. This method relies on the experience of the weigher. A well-skilled weigher can control the error within 5kg, but an inexperienced weigher may have an error of more than 10kg. The weigher not only relies on visual observation, but also makes a comprehensive estimate based on the pig's growth curve, age, daily weight gain and other information. The weigher can also regularly drive medium-sized pigs for weighing, and then perform weight correction based on the age and growth curve of the pig herd. This method is suitable for weight management of reserve pig herds and assessment of group weight by family farm farmers.

[0004] However, the above methods all have large weight estimation errors, and the staff are required to guide the pigs one by one during operation, which is very inefficient. Summary of the invention

[0005] The purpose of the present invention is to provide a pork channel counting and weighing device and a weighing method thereof, so as to solve the following technical problems:

[0006] How to count and weigh pigs quickly and easily?

[0007] The purpose of the present invention can be achieved by the following technical solutions:

[0008] In a first aspect, the present invention discloses a pork channel counting and weight estimation device, comprising a channel body, an n-shaped frame is installed in the channel body, and multiple groups of weight detection mechanisms are installed on the inner walls of both sides of the n-shaped frame;

[0009] The weight detection mechanism includes a horizontally arranged inclined rod, one end of which is hinged to the inner wall of the n-shaped frame; a roller is rotatably installed at the other end, the rotating surface of the roller is a horizontal plane, and a circle counter is installed in the roller to record the number of circles of the roller; the inclined rod is inclined toward the forward direction of the channel body, and an elastic telescopic rod is installed on the side close to the inner wall of the n-shaped frame, and a pressure sensor is installed at the end of the elastic telescopic rod;

[0010] A camera is installed on the inner top of the n-shaped frame, and the camera faces the entrance direction of the channel body;

[0011] The lap counter, pressure sensor and camera are all connected to the data processing system for communication. The lap counter, pressure sensor and camera transmit the detection data to the data processing system. The data processing system processes the received detection data to obtain the number of pigs and the weight of each pig.

[0012] In a further solution of the present invention: two groups of weight detection mechanisms are installed on the inner walls on both sides of the n-shaped frame, and the two groups of weight detection mechanisms are spaced apart in the vertical direction.

[0013] In a further embodiment of the present invention: the elastic telescopic rod includes a fixed rod, a movable rod and a spring, wherein one end of the fixed rod is fixedly connected to the oblique rod; one end of the movable rod is movably inserted into the fixed rod, and the other end is fixedly connected to the pressure sensor; the two ends of the spring are respectively fixedly connected to one end of the movable rod away from the pressure sensor and the inner side of the fixed rod.

[0014] In a further embodiment of the present invention, a one-way light is provided on the camera.

[0015] In a further scheme of the present invention: a horizontally arranged anti-backflow mechanism is installed on the inner walls on both sides of the n-shaped frame, and the anti-backflow mechanism includes an elastic rod and an electric stimulation head, wherein the elastic rod is inclined toward the forward direction of the channel body, the electric stimulation head is installed at the end of the elastic rod, and a flange is provided on the side of the end of the elastic rod away from the inner wall of the n-shaped frame.

[0016] In a further embodiment of the present invention, the elastic rod and the flange are integrated and made of elastic rubber.

[0017] In a second aspect, the present invention discloses a method for estimating the weight of pork using the above-mentioned pork channel counting and estimating device, comprising the following steps:

[0018] S1: The pigs are driven to the main body of the channel. The pigs pass through the n-shaped frame in the forward direction. The camera takes pictures of the passing pigs. The left and right sides of each pig's body drive the weight detection mechanisms on both sides to rotate in the forward direction, so that the rollers on the weight detection mechanisms roll, and at the same time, the pressure sensor at the end of the elastic telescopic rod is pressed against the inner wall of the n-shaped frame;

[0019] S2: The camera transmits the shooting information to the data processing system, and the data processing system identifies each pig and counts it. For each identified pig, the circle counter on the roller calculates the number of circles of the roller when the pig passes, and transmits the information of the number of circles to the data processing system. The pressure sensors on both sides respectively sense the pressure of the elastic telescopic rod and transmit the pressure information to the data processing system;

[0020] S3: The data processing system calculates the length of each pig's body through the received rolling circle information, and calculates the width of the pig's body through the pressure information, and finally calculates the weight of the pig through the pig's body length and width.

[0021] In a further embodiment of the present invention, in step S3, the method for calculating the pig body width M is:

[0022] The data processing system calculates the compression amounts W1 and W2 of the two sets of elastic telescopic rods respectively through the pressure information on both sides, and then converts the compression amounts W1 and W2 into the compression angles A1 and A2 of the inclined rod (301). The vertical distances L1 and L2 between the roller (302) and the inner walls on both sides of the n-shaped frame (200) are calculated respectively through the compression angles A1 and A2. The vertical distance between the inner walls on both sides of the n-shaped frame (200) is H, then:

[0023] M=H-(L1+L2).

[0024] In a further embodiment of the present invention: in step S3, the method for calculating the pig body length N is:

[0025] N = X × C;

[0026] Wherein, X is the number of rolling circles, and C is the circumference of the roller (302).

[0027] In a further embodiment of the present invention: in step S3, the calculation formula of the pig's weight Y is:

[0028] Y = M * N * t;

[0029] Among them, t is the weight parameter, which is calculated based on the accumulation of empirical values, and the value is different for different breeds of pigs.

[0030] Beneficial effects of the present invention:

[0031] (1) In the pork channel counting and weighing device and its weighing method of the present invention, a weight detection mechanism is set in the pork channel. When a pig passes through, it squeezes the inclined rod, which can drive the roller to rotate. The circle counter on the roller calculates the number of rolling circles of the roller when the pig passes through, and transmits the information of the number of rolling circles to the data processing system. At the same time, the pressure sensors on both sides of the inclined rod respectively sense the pressure of the elastic telescopic rod and transmit the pressure information to the data processing system; the data processing system calculates the length of each pig's body through the received rolling circle information, and calculates the width of the pig's body through the pressure information, and finally calculates the weight of the pig through the pig's body length and width. The whole process is convenient and fast, saving time and labor.

[0032] (2) In the pork channel counting and weighing device and weighing method of the present invention, when the pig passes between the two anti-backflow mechanisms in the forward direction, the pig body squeezes the two elastic rods toward the inner wall of the n-shaped frame in the forward direction, so that the flange blocks the electric stimulation head. The pig body contacts the flange and does not touch the electric stimulation head, so the pig can pass smoothly; when the pig moves in the reverse direction, the pig body will touch the electric stimulation head due to the lack of protection of the flange, and the pig cannot continue to move forward under the stimulation of the electric stimulation head. Therefore, the reverse movement of the pig can be avoided, ensuring that the pig can only pass along the forward direction of the n-shaped frame, which can speed up the entire weighing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described below in conjunction with the accompanying drawings.

[0034] Figure 1 1 is a schematic diagram of the structure of the pork channel counting and weight estimation device in Example 1 of the present invention;

[0035] Figure 2 yes Figure 1 A schematic diagram of the structure of a weight detection mechanism in a pork channel counting and weight estimation device;

[0036] Figure 3 yes Figure 2 A schematic diagram of the internal structure of the pressure telescopic rod in the weight detection mechanism;

[0037] Figure 4 yes Figure 1 Schematic diagram of the structure of the anti-backflow mechanism in the pork channel counting and weighing device.

[0038] In the figure: 100, channel body; 200, n-shaped frame; 300, weight detection mechanism; 301, inclined rod; 302, roller; 303, fixed rod; 304, movable rod; 305, spring; 307, pressure sensor; 400, anti-backflow mechanism; 401, elastic rod; 402, electric stimulation head; 500, camera. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Example 1

[0041] See also Figure 1The present embodiment discloses a pork channel counting and weighing device, including a channel body 100 and an n-shaped frame 200. The channel body 100 is composed of a bottom plate and vertical plates vertically connected to the left and right sides of the bottom plate. The outer walls of both sides of the n-shaped frame 200 are respectively fixedly connected to the inner walls of the two vertical plates, thereby achieving fixed installation.

[0042] Multiple groups of weight detection mechanisms 300 are installed on the inner walls on both sides of the n-shaped frame 200, and the multiple groups of weight detection mechanisms 300 on the inner walls on both sides correspond to each other and are symmetrically distributed; the specific number of weight detection mechanisms 300 is not limited and can be formulated according to actual needs. For example, in this embodiment, two groups of weight detection mechanisms 300 are installed on the inner walls on both sides of the n-shaped frame 200, and the two groups of weight detection mechanisms 300 are spaced apart in the vertical direction.

[0043] See also Figure 2 Taking the two sets of weight detection mechanisms 300 on the inner wall of one side of the n-shaped frame 200 as an example, the weight detection mechanism 300 is composed of an inclined rod 301, a roller 302, a fixed rod 303, a movable rod 304 and a spring 305, wherein the inclined rod 301 is horizontally arranged, one end of which is hinged to the inner wall of the n-shaped frame 200, and the other end is equipped with a roller 302, and a circle counter is installed in the roller 302. The circle counter is a prior art, and its specific type and model are not limited, and it only needs to satisfy the function of counting the number of rotations of the roller 302.

[0044] See also Figure 3 The inclined rod 301 is inclined toward the forward direction of the channel body 100, and an elastic telescopic rod is installed on the side close to the inner wall of the n-shaped frame 200. The specific structure of the elastic telescopic rod is not limited, and it only needs to meet the purpose of automatically rebounding to the initial state after compression; for example, in an embodiment of the present invention, the pressure telescopic rod is composed of a fixed rod 303, a movable rod 304 and a spring 305; wherein, one end of the fixed rod 303 is fixedly connected to the inclined rod 301, and the other end is provided with a through hole inwardly, and the movable rod 304 is movably inserted into the through hole, one end of the spring 305 is fixedly connected to one end of the movable rod 304 inserted into the through hole, and the other end is fixedly connected to the inner wall of the through hole; the pressure sensor 307 is installed at the end of the movable rod 304 away from the fixed rod 303.

[0045] When the inclined rod 301 is subjected to the pressure from the pig passing through, it rotates toward the inner wall of the n-shaped frame 200, which drives the elastic telescopic rod to move toward the inner wall of the n-shaped frame 200. The elastic telescopic rod drives the pressure sensor 307 to move toward the inner wall of the n-shaped frame 200, so that the movable rod 304 in the elastic telescopic rod contracts toward the through hole in the fixed rod 303, thereby compressing the spring 305. When the pig passes through, the pressure disappears, and under the elastic force of the spring 305, the movable rod 304 is automatically reset, so that the above process can be repeated when the next pig passes through.

[0046] See also Figure 4 On the inner walls on both sides of the n-shaped frame 200, symmetrically distributed anti-backflow mechanisms 400 are installed. The anti-backflow mechanism 400 includes an elastic rod 401 and an electric stimulation head 402, wherein the elastic rod 401 is horizontally arranged and inclined toward the forward direction of the channel body 100, and the electric stimulation head 402 is installed at the end of the elastic rod 401, and a flange is provided on the side of the end of the elastic rod 401 away from the inner wall of the n-shaped frame 200. The elastic rod 401 and the flange are integrated, and the material thereof is elastic rubber, which is conducive to achieving elastic deformation and elastic resetting.

[0047] To elaborate, when the pig passes between the two anti-backflow mechanisms 400 in the forward direction, the pig's body squeezes the two elastic rods 401 toward the inner wall of the n-shaped frame 200 in the forward direction, so that the flange blocks the electric stimulation head 402. The pig's body contacts the flange and does not touch the electric stimulation head 402, so it can pass smoothly; when the pig moves in the opposite direction, the pig's body will touch the electric stimulation head 402 due to the lack of protection from the flange, and the pig cannot continue to move forward under the stimulation of the electric stimulation head 402. Therefore, the pig can be prevented from moving in the opposite direction, ensuring that the pig can only pass along the forward direction of the n-shaped frame 200.

[0048] A camera 500 is installed on the inner top of the n-shaped frame 200. The camera 500 faces the entrance direction of the channel body 100 and is used to take pictures of pigs. A one-way light is provided on the camera 500 to attract the pigs to move forward and avoid backflow of the pigs.

[0049] The lap counter, pressure sensor 307 and camera 500 in the roller 302 are all connected to the data processing system for communication. The lap counter, pressure sensor 307 and camera 500 transmit the detection data to the data processing system, and the data processing system processes the received detection data to obtain the number of pigs and the weight of each pig.

[0050] Example 2

[0051] This embodiment discloses a method for estimating the weight of pork based on the pork channel point-counting weight estimation device of embodiment 1, comprising the following steps:

[0052] Step 1: The pigs are driven onto the channel body 100, and the pigs pass through the n-shaped frame 200 in the forward direction. The camera 500 takes pictures of the passing pigs. The left and right sides of each pig's body respectively drive the weight detection mechanism 300 on both sides to rotate in the forward direction, so that the roller 302 on the weight detection mechanism 300 rolls, and at the same time, the pressure sensor 307 at the end of the elastic telescopic rod is pressed against the inner wall of the n-shaped frame 200;

[0053] Step 2: The camera 500 transmits the shooting information to the data processing system. The data processing system identifies each pig and counts them. The counting method is: write a network code to train a model file and deploy it on the edge device. The algorithm program sets a detection line in the picture of the camera 500. When the algorithm detects a pig, it will give a target frame along the outline of the pig. When the midpoint of the target frame passes through the detection line, the total number of pigs increases by one; for each identified pig, the circle counter on the roller 302 calculates the number of rolling circles of the roller 302 when the pig passes, and transmits the information of the number of rolling circles to the data processing system. The pressure sensors 307 on both sides respectively sense the pressure of the elastic telescopic rod and transmit the pressure information to the data processing system;

[0054] Step 3: The data processing system calculates the length of each pig through the received rolling circle information, and calculates the width of the pig through the pressure information, and finally calculates the weight of the pig through the length and width of the pig;

[0055] Among them, the method for calculating the pig body width M is:

[0056] The data processing system calculates the compression amounts W1 and W2 of the two sets of elastic telescopic rods respectively through the pressure information on both sides, and then converts the compression amounts W1 and W2 into the compression angles A1 and A2 of the inclined rod 301. The vertical distances L1 and L2 between the roller 302 and the inner walls on both sides of the n-shaped frame 200 are calculated respectively through the compression angles A1 and A2. The vertical distance between the inner walls on both sides of the n-shaped frame 200 is H, then:

[0057] M=H-(L1+L2).

[0058] The method for calculating the pig body length N is:

[0059] N = X × C;

[0060] Wherein, X is the number of rolling circles, and C is the circumference of the roller 302 .

[0061] The calculation formula of pig weight is: Y = M*N*t;

[0062] Among them, t is the weight parameter, which is calculated based on the accumulation of empirical values, and the value is different for different breeds of pigs.

[0063] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0064] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A pork channel counting and weight estimation device, characterized in that: It comprises a channel body (100), an n-shaped frame (200) is installed in the channel body (100), and multiple groups of weight detection mechanisms (300) are installed on the inner walls of both sides of the n-shaped frame (200); The weight detection mechanism (300) comprises a horizontally arranged inclined rod (301), one end of which is hinged to the inner wall of the n-shaped frame (200); a roller (302) is rotatably mounted on the other end, the rotating surface of the roller (302) is a horizontal surface, and a rotation counter is mounted in the roller (302) to record the number of rotations of the roller (302); the inclined rod (301) is inclined toward the advancing direction of the channel body (100), and an elastic telescopic rod is mounted on one side close to the inner wall of the n-shaped frame (200), and a pressure sensor (307) is mounted at the end of the elastic telescopic rod; A camera (500) is installed on the inner top of the n-shaped frame (200), and the camera (500) faces the entry direction of the channel body (100); The lap counter, the pressure sensor (307) and the camera (500) are all connected to the data processing system for communication. The lap counter (303), the pressure sensor (307) and the camera (500) transmit the detection data to the data processing system, and the data processing system processes the received detection data to obtain the number of pigs and the weight of each pig.

2. The pork channel counting and weight estimation device according to claim 1 is characterized in that: Two groups of weight detection mechanisms (300) are installed on the inner walls of both sides of the n-shaped frame (200), and the two groups of weight detection mechanisms (300) are spaced apart in the vertical direction.

3. The pork channel counting and weight estimation device according to claim 1, characterized in that: The elastic telescopic rod comprises a fixed rod (303), a movable rod (304) and a spring (305), wherein one end of the fixed rod (303) is fixedly connected to the inclined rod (301); one end of the movable rod (304) is movably inserted into the fixed rod (303), and the other end is fixedly connected to the pressure sensor (307); and two ends of the spring (305) are respectively fixedly connected to one end of the movable rod (304) away from the pressure sensor (307) and the inner side of the fixed rod (303).

4. The pork channel counting and weight estimation device according to claim 1, characterized in that: The camera (500) is provided with a one-way light.

5. The pork channel counting and weight estimation device according to claim 1, characterized in that: Horizontally arranged backflow prevention mechanisms (400) are installed on the inner walls on both sides of the n-shaped frame (200), and the backflow prevention mechanisms (400) include an elastic rod (401) and an electric stimulation head (402), wherein the elastic rod (401) is inclined toward the forward direction of the channel body (100), the electric stimulation head (402) is installed at the end of the elastic rod (401), and a flange is provided on the side of the end of the elastic rod (401) away from the inner wall of the n-shaped frame (200).

6. The pork channel counting and weight estimation device according to claim 5, characterized in that: The elastic rod (401) is integrated with the flange and is made of elastic rubber.

7. A method for estimating the weight of pork using the pork channel counting and estimating device as claimed in any one of claims 1 to 6, characterized in that: The following steps are involved: S1: The pigs are driven onto the channel body (100), and the pigs pass through the n-shaped frame (200) in the forward direction. The camera (500) takes pictures of the passing pigs. The left and right sides of each pig's body respectively drive the weight detection mechanisms (300) on both sides to rotate in the forward direction, so that the rollers (302) on the weight detection mechanisms (300) roll, and at the same time, the pressure sensor (307) at the end of the elastic telescopic rod is pressed against the inner wall of the n-shaped frame (200); S2: The camera (500) transmits the shooting information to the data processing system, and the data processing system identifies each pig and counts it. For each identified pig, the circle counter (303) on the roller (302) calculates the number of circles of the roller (302) when the pig passes, and transmits the information of the number of circles to the data processing system. The pressure sensors (307) on both sides respectively sense the pressure of the elastic telescopic rod and transmit the pressure information to the data processing system. S3: The data processing system calculates the length of each pig's body through the received rolling circle information, and calculates the width of the pig's body through the pressure information, and finally calculates the weight of the pig through the pig's body length and width.

8. The method for estimating the weight of pork according to claim 7, characterized in that: In step S3, the method for calculating the pig body width M is: The data processing system calculates the compression amounts W1 and W2 of the two sets of elastic telescopic rods respectively through the pressure information on both sides, and then converts the compression amounts W1 and W2 into the compression angles A1 and A2 of the inclined rod (301). The vertical distances L1 and L2 between the roller (302) and the inner walls on both sides of the n-shaped frame (200) are calculated respectively through the compression angles A1 and A2. The vertical distance between the inner walls on both sides of the n-shaped frame (200) is H, then: M=H-(L1+L2).

9. The method for estimating the weight of pork according to claim 7, characterized in that: In step S3, the method for calculating the pig body length N is: N = X × C; Wherein, X is the number of rolling circles, and C is the circumference of the roller (302).

10. The method for estimating the weight of pork according to claim 7, characterized in that: In step S3, the calculation formula of the pig's weight Y is: Y = M * N * t; Among them, t is the weight parameter.

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