Automatic weighing system and method for yak herds

Abstract

The present invention provides an automatic weighing system and method for yak herds, which belongs to the field of animal husbandry technology. The system includes a weighing platform arranged near a supplementary feeding area, a weighing bracket for supporting the weighing platform, a lifting assembly arranged inside the weighing bracket and capable of lifting the weighing platform, a weighing unit connected to the lifting assembly, and side baffles arranged on both sides of the weighing platform. The lifting assembly can lift the weighing platform and detach it from the weighing bracket, and the weighing unit can measure the weight of the weighing platform and the yak standing on the weighing platform. By using such an automatic weighing system and method for yak herds, the weighing process can be automatically completed during supplementary feeding of livestock. Specifically, the weighing bracket and the side baffles divide the supplementary feeding area into multiple weighing areas, each of which can only accommodate one yak. Each weighing area is provided with a weighing platform. When a yak enters the supplementary feeding area, it stands on the weighing platform and is automatically weighed.

Description

Technical Field

[0001] The present invention belongs to the technical field of animal husbandry, and more particularly relates to an automatic weighing system and method for a yak herd. Background Art

[0002] In animal husbandry, it is usually necessary to weigh livestock regularly to monitor their growth and development. Weighing large livestock such as yaks is a core means of scientific breeding. It can not only ensure animal health and production efficiency, but also provide a basis for genetic improvement and market decision-making.

[0003] In the existing technology, livestock need to be driven to a ground scale for weighing. For large farms, this method is inefficient and improper operation may cause stress in livestock. After stress, livestock may not eat or eat less for several days, affecting their normal development.

[0004] Supplemental feeding refers to artificially adding feed to compensate for nutritional deficiencies in animals due to insufficient natural food intake or nutritional imbalances. The purpose of supplemental feeding is to improve the animal's production performance (such as weight gain, milk production, and reproduction), improve its health, or maintain its basic survival needs under specific circumstances. Summary of the Invention

[0005] Based on this, the object of the present invention is to provide an automatic weighing system for yaks, which is used for automatically weighing yaks during supplementary feeding. The automatic weighing system includes a weighing platform arranged near the supplementary feeding area, a weighing bracket for supporting the weighing platform, a lifting assembly arranged inside the weighing bracket and capable of lifting the weighing platform, a weighing unit connected to the lifting assembly, and side guards arranged on both sides of the weighing platform.

[0006] The weighing platform is arranged on one side of the supplementary feeding area, and the yak needs to stand on the weighing platform for supplementary feeding. The side baffle is used to limit the weighing platform to accommodate only one yak, and when the yak is supplementary feeding, the entire weight is applied to the weighing platform; before the lifting assembly lifts the weighing platform, the weighing bracket supports the weighing platform; the lifting assembly can lift the weighing platform and separate it from the weighing bracket, and the weighing unit can measure the weight of the weighing platform and the yak standing on the weighing platform.

[0007] Preferably, the lifting assembly includes a fixed lifting part and a movable lifting part, the fixed lifting part is provided with a lifting drive and a lifting transmission assembly connected to the lifting drive, the movable lifting part is connected to the lifting transmission assembly, and the movable lifting part is connected to the weighing platform; the lifting drive can drive the movable lifting part to move and thereby lift the weighing platform to a position away from the weighing bracket or place the weighing platform on the weighing bracket;

[0008] The weighing unit is arranged at the bottom of the lifting fixed part. After the weighing platform is lifted and separated from the weighing bracket, the weighing unit can measure the weight of the weighing platform and the yak standing on the weighing platform.

[0009] Preferably, the lifting driver is a first motor, and the lifting transmission assembly includes a first worm connected to the output shaft of the lifting driver, a first gear set connected to the first worm, a second worm connected to the first gear set, a first transmission rod connecting the first gear set and the second worm, a third gear connected to the second worm, and a first screw coaxially connected to the third gear; an internal threaded hole matching the first screw is provided on the lifting movable part, and the rotation of the first screw can drive the lifting movable part to translate along the axis of the first screw;

[0010] The lifting driver can drive the first worm to rotate, and in turn drives the first screw to rotate through the first gear set, the first transmission rod, the second worm, and the third gear.

[0011] Preferably, two sets of first gear sets are provided on both sides of the first worm, the first gear sets including a first gear and a second gear meshing with each other, the first gear meshing with the first worm; the second gears of the two sets of first gear sets are respectively connected to the two first transmission rods, the second gears are provided in the middle of the first transmission rods; and the second worms are respectively provided at both ends of the first transmission rods;

[0012] Four third gears and a coaxially connected first screw are provided on the lifting and fixing part, and the second worms at both ends of the two first transmission rods are respectively engaged with the four third gears; the thread rotation direction of the two first screws connected to the same first transmission rod is the same; the thread rotation direction of the two first screws connected to the two first transmission rods is opposite.

[0013] Preferably, a plurality of support frames are provided on the lifting movable part, the bottom of the support frame is connected to the lifting movable part, and the top of the support frame is used to contact the weighing platform; the plurality of support frames can balance the contact force between the lifting movable part and the weighing platform, so that the force between the lifting movable part and the weighing platform is uniform.

[0014] Preferably, the automatic weighing system includes multiple weighing platforms placed side by side; the automatic weighing system also includes a mobile platform capable of moving the lifting component and a translation drive driving the mobile platform to translate, and the translation drive can move the lifting component between multiple weighing platforms; the translation drive can move the lifting component to the bottom of a weighing platform, and the lifting component can lift the weighing platform and detach it from the weighing bracket, measuring the weight of the weighing platform and the yak standing on the weighing platform.

[0015] Preferably, the automatic weighing system further comprises a translation track, and the mobile platform is provided with rollers matching the translation track;

[0016] The mobile platform is provided with a plurality of rollers, including active rollers and driven rollers; the translation driver is provided on the mobile platform, and the mobile platform is also provided with a translation transmission assembly;

[0017] The mobile platform is provided with two active rollers and two driven rollers, a transmission shaft is provided between the two active rollers, a first transmission wheel is provided on the translation driver, a second transmission wheel is provided on the transmission shaft, and a transmission belt is provided between the first transmission wheel and the second transmission wheel;

[0018] The translation driver can drive the first transmission wheel to rotate, and then drive the two active rollers to rotate through the transmission belt, the second transmission wheel and the transmission shaft in sequence.

[0019] Preferably, the automatic weighing system further comprises a positioning assembly, which comprises a fixed positioning unit matched with each weighing platform and a movable positioning unit that moves synchronously with the mobile platform; the fixed positioning unit and the movable positioning unit are used to detect whether the position of the mobile platform corresponds to the weighing platform when the mobile platform moves;

[0020] The fixed positioning unit includes an NFC tag, and the movable positioning unit includes a reader capable of reading the NFC tag. The NFC tag information is associated and matched with the weighing platform. The mobile platform can obtain the information of the weighing platform being weighed through the NFC tag and the reader.

[0021] The fixed positioning unit also includes a laser shielding unit, and the movable positioning unit also includes a laser emitting unit and a laser receiving unit. The laser emitting unit and the laser receiving unit are used to accurately adjust the position of the mobile platform.

[0022] Preferably, the automatic weighing system further comprises a drag chain unit, the drag chain unit is used to connect the mobile platform, the drag chain unit comprises a drag chain body and a drag chain transmission assembly connected to the drag chain body; the drag chain body comprises a fixed end and a movable end connected to the mobile platform;

[0023] The drag chain transmission assembly includes two fixed pulleys respectively arranged at both ends of the translation track in the length direction, a cable, and a connector connected to the bend of the drag chain body; one end of the cable is connected to the movable end of the drag chain, and the other end of the cable is connected to the connector after passing through the two fixed pulleys in sequence.

[0024] Preferably, the mobile platform also includes a support part and an elastic part, and the elastic part is used to connect the roller and the mobile platform; before the lifting assembly contacts the weighing platform, the elastic part is in an extended state, and the support part is not in contact with the plane where the translation track is located; after the lifting assembly contacts the weighing platform, the elastic part is in a compressed state, and the support part contacts with the plane where the translation track is located.

[0025] Preferably, the multiple weighing platforms are provided with subject identification units, and the automatic weighing system further comprises subject identification tags installed on the limbs of the yaks. The subject identification units can or are being fed on the corresponding weighing platforms and carry the subject identification tag information.

[0026] This embodiment also provides an automatic weighing method for a yak herd, comprising:

[0027] Continuously detecting the subject identification tag within the identification range by the subject identification unit;

[0028] After the subject identification unit detects the subject identification tag, the mobile platform is controlled to move to the bottom of the weighing platform where the subject identification unit that detected the subject identification tag is located;

[0029] Control the lifting assembly to lift the weighing platform to a position away from the weighing bracket, obtain the mass value measured by the weighing unit, which is related to the mass of the yak currently on the weighing platform, and subtract the preset tare value to obtain the tare value. The tare value is associated with the subject identification tag information and stored;

[0030] Control the lifting assembly and place the weighing platform on the weighing bracket.

[0031] According to an embodiment of the present invention, an automatic weighing system for yaks automates the weighing process during supplementary feeding. Specifically, a weighing bracket and side panels divide the supplementary feeding area into multiple weighing zones, each accommodating only one yak. Each weighing zone is equipped with a weighing platform, where yaks enter the supplementary feeding area and are automatically weighed. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present disclosure includes accompanying drawings, which should be considered as included in and constitute a part of the specification and, together with the specification, illustrate various exemplary embodiments, features, and aspects of the present disclosure and are used to explain the principles of the present disclosure. The present disclosure will be more fully understood through the following detailed description in conjunction with the accompanying drawings. Among them:

[0033] Figure 1 is a schematic diagram of an automatic weighing system for a yak herd according to an embodiment of the present invention;

[0034] Figure 2 1 is a schematic diagram of the internal structure of an automatic weighing system for yak herds according to an embodiment of the present invention;

[0035] Figure 3 is a schematic diagram of a lifting and fixing part of an automatic weighing system for a yak herd according to an embodiment of the present invention;

[0036] Figure 4is a schematic diagram of a translation track of an automatic weighing system for a yak herd according to an embodiment of the present invention;

[0037] Figure 5 is a schematic diagram of a drag chain assembly for an automatic weighing system for a yak herd according to an embodiment of the present invention;

[0038] Figure 6 is a schematic diagram of a support body and an elastic member of an automatic weighing system for a yak herd according to an embodiment of the present invention;

[0039] Figure 7 yes Figure 6 A partial enlarged view of point A in the middle;

[0040] Figure 8 2 is a schematic diagram of the internal structure of a weighing bracket of an automatic weighing system for a herd of yaks according to an embodiment of the present invention;

[0041] Figure 9 yes Figure 8 A partial enlarged view of point B in the middle;

[0042] Figure 10 is a schematic diagram of a load-bearing bracket for an automatic weighing system for a yak herd according to an embodiment of the present invention;

[0043] Figure 11 is a schematic diagram of a subject identification unit of an automatic weighing system for a herd of yaks according to an embodiment of the present invention;

[0044] Figure 12 is a schematic diagram of a weighing platform of an automatic weighing system for a herd of yaks according to an embodiment of the present invention;

[0045] Figure 13 is a schematic diagram of a mobile platform of an automatic weighing system for a herd of yaks according to an embodiment of the present invention;

[0046] Among them: weighing platform 10, weighing bracket 11, weighing unit 12, side baffle 13, lifting fixed part 21, lifting movable part 22, lifting driver 23, first worm 24, first gear set 25, second worm 26, first transmission rod 27, third gear 28, first screw 29, support frame 31, mobile platform 32, translation driver 33, translation track 34, driving roller 35, driven roller 36, first transmission wheel 37, second transmission wheel 38, transmission belt 39, NFC tag 41, reader 42, laser emitting unit 43, laser receiving unit 44, drag chain body 45, fixed pulley 46, cable 47, connecting piece 48, support part 51, elastic piece 52, main body identification unit 53. DETAILED DESCRIPTION

[0047] The technical solutions of the present invention are further described in detail below through examples and in conjunction with the accompanying drawings, but the present invention is not limited to the following examples.

[0048] In animal husbandry, it is usually necessary to weigh livestock regularly to monitor their growth and development. Weighing large livestock such as yaks is a core means of scientific breeding. It can not only ensure animal health and production efficiency, but also provide a basis for genetic improvement and market decision-making.

[0049] In the existing technology, livestock need to be driven to a ground scale for weighing. For large farms, this method is inefficient and improper operation may cause stress in livestock. After stress, livestock may not eat or eat less for several days, affecting their normal development.

[0050] Supplemental feeding refers to artificially adding feed to compensate for nutritional deficiencies in animals due to insufficient natural food intake or nutritional imbalances. The purpose of supplemental feeding is to improve the animal's production performance (such as weight gain, milk production, and reproduction), improve its health, or maintain its basic survival needs under specific circumstances.

[0051] To address the above-mentioned problems, the present invention aims to provide an automatic weighing system for a yak herd, which is used for automatically weighing yaks during supplementary feeding. The automatic weighing system includes a weighing platform 10 disposed near the supplementary feeding area, a weighing bracket 11 for supporting the weighing platform 10, a lifting assembly disposed within the weighing bracket 11 and capable of lifting the weighing platform 10, a weighing unit 12 connected to the lifting assembly, and side baffles 13 disposed on both sides of the weighing platform 10.

[0052] The weighing platform 10 is set on one side of the supplementary feeding area. The yak needs to stand on the weighing platform 10 for supplementary feeding. The side baffle 13 is used to limit the weighing platform 10 to accommodate only one yak and all the weight of the yak is applied to the weighing platform 10 when it is supplementary feeding; before the lifting assembly lifts the weighing platform 10, the weighing bracket 11 supports the weighing platform 10; the lifting assembly can lift the weighing platform 10 and separate it from the weighing bracket 11, and the weighing unit 12 can measure the weight of the weighing platform 10 and the yak standing on the weighing platform 10.

[0053] In this embodiment, Figure 1 、 Figure 2 、 Figure 3 As shown, the supplementary feeding area can be a long, rectangular trough, where supplementary feed is placed. Livestock can stand on either side of the trough to receive supplementary feed. The weighing bracket 11 includes an above-ground portion and an underground portion. Excavation is required before installing the weighing bracket 11. The underground portion includes an underground frame for mounting the lifting assembly, while the above-ground portion includes a ground frame for placing the weighing platform 10. Side guards 13 are mounted on the ground frame. The weighing platform 10 is positioned at ground level.

[0054] The ground frame includes a hole set in the center, with steps arranged around the hole. The shape of the weighing platform 10 matches the hole and is placed on the steps. The steps limit the lowest position of the weighing platform 10. When the weighing platform 10 is at the lowest position, the yak stands on the weighing platform 10, and the weight of the yak is applied to the weighing bracket 11.

[0055] When the yak is weighed, the lifting assembly lifts the weighing platform 10, and the weighing platform 10 is separated from the steps. After the separation, the weight of the yak is applied to the lifting assembly.

[0056] The weighing unit 12 connected to the lifting assembly can measure the masses of the lifting movable part 22 of the lifting assembly, the weighing platform 10 and the yak on the weighing platform 10 .

[0057] In some embodiments, the automatic weighing system lifts the weighing platform 10 when the yak is not on the weighing platform 10 to calibrate the weight, that is, to measure the tare value. The tare value is obtained by subtracting the tare value from the measurement value when the yak stands on the weighing platform 10.

[0058] In some embodiments, when the weighing platforms 10 have similar specifications, the tare value of one weighing platform 10 can be applied to all weighing platforms 10. For weighing platforms 10 of different specifications, the tare values can be calibrated separately for the weighing platforms 10 of different specifications or for all weighing platforms 10.

[0059] Furthermore, the lifting assembly includes a fixed lifting portion 21 and a movable lifting portion 22. The fixed lifting portion 21 is provided with a lifting driver 23 and a lifting transmission assembly connected to the lifting driver 23. The movable lifting portion 22 is connected to the lifting transmission assembly, and the movable lifting portion 22 is connected to the weighing platform 10. The lifting driver 23 can drive the movable lifting portion 22 to move and thereby lift the weighing platform 10 to a position away from the weighing bracket 11 or place the weighing platform 10 on the weighing bracket 11.

[0060] The weighing unit 12 is arranged at the bottom of the lifting fixed part 21 . After the weighing platform 10 is lifted and separated from the weighing bracket 11 , the weighing unit 12 can measure the weight of the weighing platform 10 and the yak standing on the weighing platform 10 .

[0061] In this embodiment, the lifting assembly includes a lifting fixed part 21 and a lifting movable part 22. The lifting fixed part 21 refers to the part whose height position remains unchanged during the lifting action or the descending and resetting action after lifting, while the lifting movable part 22 refers to the part whose height position changes during the lifting action or the descending and resetting action after lifting.

[0062] When the lifting movable part 22 is in the state of descending and returning to its original position, the top of the lifting movable part 22 is below the bottom of the weighing platform 10 and the two do not touch each other. When the lifting movable part 22 is in the lifting state, the top of the lifting movable part 22 contacts the bottom of the weighing platform 10 and lifts the weighing platform 10 to separate the weighing platform 10 from the weighing bracket 11.

[0063] Furthermore, the lifting driver 23 is a first motor, and the lifting transmission assembly includes a first worm 24 connected to the output shaft of the lifting driver 23, a first gear set 25 connected to the first worm 24, a second worm 26 connected to the first gear set 25, a first transmission rod 27 connecting the first gear set 25 and the second worm 26, a third gear 28 connected to the second worm 26, and a first screw 29 coaxially connected to the third gear 28; the lifting movable part 22 is provided with an internal threaded hole matching the first screw 29, and the rotation of the first screw 29 can drive the lifting movable part 22 to translate along the axis of the first screw 29;

[0064] The lifting driver 23 can drive the first worm 24 to rotate, and in turn drive the first screw 29 to rotate through the first gear set 25, the first transmission rod 27, the second worm 26, and the third gear 28.

[0065] In this embodiment, the lifting driver 23 is used to provide power for the lifting action and the lowering and resetting action of the lifting movable part 22.

[0066] In some embodiments, the automatic weighing system further includes a controller, which is connected to the lifting driver 23 and is used to control the actions of the lifting driver 23, including forward rotation, reverse rotation, and stop.

[0067] In some embodiments, the first worm 24, the first gear set 25, the second worm 26, the first transmission rod 27, the third gear 28, and the first screw 29 are respectively connected to the lifting and fixing part 21 through support members, which are used to limit the position of these components and provide installation and support functions.

[0068] In some embodiments, the meshing of the worm and the gear can be achieved by the worm and the helical gear, and the normal base circle pitches of the worm and the helical gear meshing therewith are equal.

[0069] The lift driver 23 drives the first worm 24 to rotate, which in turn drives the first screw 29 via the first gear set 25, the first transmission rod 27, the second worm 26, and the third gear 28. The first screw 29 engages the lift member 22 through a threaded connection. Rotation of the first screw 29 drives the lift member 22 to translate, thereby achieving both lifting and lowering.

[0070] Furthermore, two sets of first gear sets 25 are provided on both sides of the first worm 24. The first gear sets 25 include a first gear and a second gear that mesh with each other, and the first gear meshes with the first worm 24. The second gears of the two sets of first gear sets 25 are respectively connected to two first transmission rods 27. The second gears are provided in the middle of the first transmission rods 27. The second worms 26 are provided at both ends of the first transmission rods 27.

[0071] The lifting and fixing part 21 is provided with four third gears 28 and a coaxially connected first screw 29, and the second worm gears 26 at both ends of the two first transmission rods 27 are respectively engaged with the four third gears 28; the thread rotation direction of the two first screws 29 connected to the same first transmission rod 27 is the same; the thread rotation direction of the two first screws 29 connected to the two first transmission rods 27 is opposite.

[0072] This embodiment provides a specific implementation of a lifting transmission assembly. Four first screws 29 are provided at the four corners of the fixed lifting portion 21, and four threaded holes matching the first screws 29 are provided at corresponding positions on the movable lifting portion 22. These threaded holes can be inserts with internal threads or threaded holes machined directly into the bottom surface of the movable lifting portion 22.

[0073] Two first gear sets 25 are respectively provided on both sides of the first worm 24. The first gear sets 25 can be of one size or multiple sizes that mesh with each other, and are used to transmit torque to the corresponding position of the first screw 29. The first worm 24 can drive the two first gear sets 25 to rotate.

[0074] The first gear set 25 of this embodiment includes a first gear and a second gear meshing with each other. The first gear meshes with the first worm 24 , and the second gear meshes with the first transmission rod 27 .

[0075] In this embodiment, the first transmission rod 27 is an elongated rod-shaped component. The middle portion of the first transmission rod 27 is connected to the second gear. Second worm gears 26 are provided at both ends of the first transmission rod 27. The third gear 28 is coaxial with and interconnected with the first screw 29. Rotation of the second worm gear 26 drives rotation of the first screw 29.

[0076] Since the first gears on both sides of the first worm 24 rotate in opposite directions, the two first transmission rods 27 rotate in opposite directions. In order to enable the rotation of the first worm 24 to drive the lifting movable part 22 to rise or fall smoothly, the thread rotation directions of the two first screw rods 29 connected to the same first transmission rod 27 are the same; the thread rotation directions of the two first screw rods 29 connected to the two first transmission rods 27 are opposite.

[0077] Furthermore, a plurality of support frames 31 are provided on the lifting movable part 22, the bottom of the support frame 31 is connected to the lifting movable part 22, and the top of the support frame 31 is used to contact the weighing platform 10; the plurality of support frames 31 can balance the contact force between the lifting movable part 22 and the weighing platform 10, so that the force between the lifting movable part 22 and the weighing platform 10 is uniform.

[0078] In this embodiment, the support frame 31 is a frame-type structure, and the support frame 31 includes a plurality of parallel beams. These beams can contact the weighing platform 10, balance the contact force between the lifting movable part 22 and the weighing platform 10, and make the force between the lifting movable part 22 and the weighing platform 10 uniform.

[0079] Furthermore, the automatic weighing system includes multiple weighing platforms 10 placed side by side; the automatic weighing system also includes a mobile platform 32 capable of moving the lifting component, and a translation drive 33 driving the mobile platform 32 to translate, and the translation drive 33 can move the lifting component between multiple weighing platforms 10; the translation drive 33 can move the lifting component to the bottom of a weighing platform 10, and the lifting component can lift the weighing platform 10 and detach it from the weighing bracket 11, thereby measuring the weight of the weighing platform 10 and the yak standing on the weighing platform 10.

[0080] In this embodiment, the automatic weighing system includes a plurality of weighing platforms 10 placed side by side, the mobile platform 32 can move back and forth between the weighing platforms 10, the mobile platform 32 can be positioned at the bottom of a certain weighing platform 10, and the lifting component is arranged on the mobile platform 32. The lifting component can lift the weighing platform 10 and separate it from the weighing bracket 11, and measure the weight of the weighing platform 10 and the yak standing on the weighing platform 10.

[0081] Furthermore, the automatic weighing system further includes a translation track 34, and the mobile platform 32 is provided with rollers matching the translation track 34;

[0082] The mobile platform 32 is provided with a plurality of rollers, including a driving roller 35 and a driven roller 36; the translation driver 33 is provided on the mobile platform 32, and the mobile platform 32 is also provided with a translation transmission component;

[0083] The mobile platform 32 is provided with two driving rollers 35 and two driven rollers 36, a transmission shaft is provided between the two driving rollers 35, a first transmission wheel 37 is provided on the translation driver 33, a second transmission wheel 38 is provided on the transmission shaft, and a transmission belt 39 is provided between the first transmission wheel 37 and the second transmission wheel 38;

[0084] The translation driver 33 can drive the first transmission wheel 37 to rotate, and then drive the two active rollers 35 to rotate through the transmission belt 39, the second transmission wheel 38, and the transmission shaft in sequence.

[0085] In this embodiment, Figure 13 As shown, the translation driver 33 may be a motor, which can drive the first transmission wheel 37 to rotate. The first transmission wheel 37 and the second transmission wheel 38 are connected via a transmission belt 39 .

[0086] In a specific implementation, the first transmission wheel 37 and the second transmission wheel 38 can be sprockets, and the corresponding transmission belt 39 is a chain. Two active rollers 35 are respectively provided at both ends of the transmission shaft. The forward or reverse rotation of the translation driver 33 can drive the mobile platform 32 to move on the translation track 34.

[0087] In some embodiments, the translation driver 33 is connected to a controller, and the controller can control the translation driver 33 to rotate forward or reverse.

[0088] Furthermore, the automatic weighing system further includes a positioning assembly, which includes a fixed positioning unit matched with each weighing platform 10 and a movable positioning unit that moves synchronously with the mobile platform 32; the fixed positioning unit and the movable positioning unit are used to detect whether the position of the mobile platform 32 corresponds to the weighing platform 10 when the mobile platform 32 moves.

[0089] The fixed positioning unit includes an NFC tag 41, and the movable positioning unit includes a reader 42 capable of reading the NFC tag 41. The information of the NFC tag 41 is associated and matched with the weighing platform 10. The mobile platform 32 can obtain the information of the weighing platform 10 being weighed through the NFC tag 41 and the reader 42.

[0090] The fixed positioning unit further includes a laser shielding unit, and the movable positioning unit further includes a laser emitting unit 43 and a laser receiving unit 44 . The laser emitting unit 43 and the laser receiving unit 44 are used to precisely adjust the position of the moving platform 32 .

[0091] In this embodiment, Figure 8 、 Figure 9 As shown, the positioning component is connected to the controller, and the positioning component is used to assist in confirming whether the mobile platform 32 is accurately moved to the bottom of a certain weighing platform 10 to avoid getting stuck when lifting the weighing platform 10 due to inaccurate positioning.

[0092] The fixed positioning unit is stationary relative to the weighing platform 10, and each weighing platform 10 corresponds to a fixed positioning unit. The movable positioning unit is connected to the mobile platform 32. When the mobile platform 32 moves, the movable positioning unit matches the fixed positioning unit corresponding to the target weighing platform 10 for position control.

[0093] Specifically, the fixed positioning unit includes an NFC tag 41, and the movable positioning unit includes a reader 42 that can read the NFC tag 41. When the reader 42 is close to the NFC tag 41, it can obtain the information stored in the NFC tag 41. The reader 42 or the controller presets the information of all NFC tags 41. When the reader 42 moves to a certain NFC tag 41, it can determine whether the NFC tag 41 is the target location.

[0094] The fixed positioning unit also includes a laser blocking unit, and the movable positioning unit also includes a laser emitting unit 43 and a laser receiving unit 44. The laser emitting unit 43 and the laser receiving unit 44 are used to precisely adjust the position of the mobile platform 32. Specifically, the reader 42 and the NFC tag 41 can detect whether the mobile platform 32 has moved near the target position. The laser emitting unit 43 is used to emit laser light, and the laser receiving unit 44 is used to detect laser light. When the laser emitting unit 43 is aligned with the laser receiving unit, the laser blocking unit blocks the laser light, preventing the laser emitting unit from receiving the laser light, and the positioning of the mobile platform 32 is completed.

[0095] Furthermore, the automatic weighing system further includes a drag chain unit, which is used to connect the mobile platform 32. The drag chain unit includes a drag chain body 45 and a drag chain transmission assembly connected to the drag chain body 45. The drag chain body 45 includes a fixed end and a movable end connected to the mobile platform 32.

[0096] The drag chain transmission assembly includes two fixed pulleys 46 respectively arranged at both ends of the length direction of the translation track 34, a cable 47, and a connector 48 connected to the bend of the drag chain body 45; one end of the cable 47 is connected to the movable end of the drag chain, and the other end of the cable 47 is connected to the connector 48 after passing through the two fixed pulleys 46 in sequence.

[0097] In this embodiment, Figure 4 、 Figure 5 As shown, the drag chain unit is used to organize the wiring harness connected to the mobile platform 32 , and the drag chain unit includes a drag chain body 45 and a drag chain transmission assembly connected to the drag chain body 45 .

[0098] The drag chain transmission assembly includes two fixed pulleys 46, one at each end of the translation track 34, a cable 47, and a connector 48 connected to the bend of the drag chain body 45. One end of the cable 47 is connected to the movable end of the drag chain, and the other end of the cable 47 passes through the two fixed pulleys 46 and then connects to the connector 48. In the specific implementation process, when the mobile platform 32 moves, the movable end follows and pulls the cable 47, which in turn pulls the connector 48 to move synchronously, avoiding excessive resistance at the bend of the drag chain body 45 due to excessive friction.

[0099] Furthermore, the mobile platform 32 also includes a support part 51 and an elastic member 52, and the elastic member 52 is used to connect the roller and the mobile platform 32; before the lifting assembly contacts the weighing platform 10, the elastic member 52 is in an extended state, and the support part 51 is not in contact with the plane where the translation rail 34 is located; after the lifting assembly contacts the weighing platform 10, the elastic member 52 is in a compressed state, and the support part 51 is in contact with the plane where the translation rail 34 is located.

[0100] In this embodiment, Figure 6 、 Figure 7 As shown, the support portion 51 provides support, while the elastic member 52, which can be a compression spring, can lift the mobile platform 32 without external forces. At this point, the bottom of the support portion 51 is suspended in the air, allowing the translation driver 33 to drive the mobile platform 32. After the lifting assembly contacts the weighing platform 10, the elastic member 52 compresses, causing the support portion 51 to move downward and contact the plane of the translation rail 34. The support portion 51 primarily performs the weighing function, preventing damage to the rollers caused by excessive pressure.

[0101] Furthermore, the multiple weighing platforms 10 are provided with subject identification units 53 , and the automatic weighing system also includes subject identification tags installed on the limbs of the yaks. The subject identification units 53 can or are being fed on the corresponding weighing platforms 10 .

[0102] In this embodiment, Figure 10 、 Figure 11 The subject identification tag can be a radio frequency tag, and the subject identification unit 53 can be a radio frequency reader 42. The yak wears the subject identification tag, and the information stored in the subject identification tag is associated with the yak's identity. When the yak stands on the weighing platform 10, the subject identification unit 53 can obtain the radio frequency tag information and then associate the weighing information with the yak's identity.

[0103] In some embodiments, as Figure 12 As shown, a support beam is provided at the bottom of the weighing platform, and the support beam is in contact with the support frame for balancing the force.

[0104] This embodiment also provides an automatic weighing method for a yak herd, comprising:

[0105] Continuously detecting the subject identification tag within the identification range by the subject identification unit 53;

[0106] After the subject identification unit 53 detects the subject identification tag, the mobile platform 32 is controlled to move to the bottom of the weighing platform 10 where the subject identification unit 53 that detected the subject identification tag is located;

[0107] Control the lifting assembly to lift the weighing platform 10 to a position away from the weighing bracket 11, obtain the mass value measured by the weighing unit 12, which is related to the mass of the yak currently on the weighing platform 10, and subtract the preset tare value to obtain the tare value. The tare value is associated with the subject identification tag information and stored;

[0108] Control the lifting assembly to place the weighing platform 10 on the weighing bracket 11.

[0109] In this embodiment, the subject identification tag can be a radio frequency tag, and the subject identification unit 53 can be a radio frequency reader 42. The yak wears the subject identification tag, and the information stored in the subject identification tag is associated with the yak's identity. When the yak stands on the weighing platform 10, the subject identification unit 53 can obtain the radio frequency tag information and then associate the weighing information with the yak's identity. After the subject identification unit 53 detects the subject identification tag information, the controller controls the mobile platform 32 to move to the bottom of the weighing platform 10 to perform the weighing action. During weighing, the lifting assembly only needs to lift the weighing platform 10 to a position that is separated from the weighing bracket 11 to perform weighing. Specifically, it can be 3-5 mm. For the yak, it is almost imperceptible and will not cause a stress reaction.

[0110] The various embodiments disclosed in the present invention have been described above. The above description is exemplary and not exhaustive, and the scope of the present invention is not limited to the above embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the spirit and scope of the present invention. That is to say, those skilled in the art can make various changes and improvements to the present invention in form and detail, and these are all considered to fall within the scope of protection of the present invention. The choice of terms used in this article is intended to best explain the principles of the various embodiments, practical applications or improvements to the technology in the market, or to enable those skilled in the art to understand the various embodiments disclosed herein.

Claims

1. An automatic weighing system for yaks, used for automatic weighing of yaks during supplementary feeding; characterized in that: The automatic weighing system comprises a weighing platform (10) arranged near the supplementary feeding area, a weighing bracket (11) for supporting the weighing platform (10), a lifting assembly arranged inside the weighing bracket (11) and capable of lifting the weighing platform (10), a weighing unit (12) connected to the lifting assembly, and side baffles (13) arranged on both sides of the weighing platform (10); The weighing platform (10) is arranged on one side of the supplementary feeding area, and the yak needs to stand on the weighing platform (10) for supplementary feeding. The side baffle (13) is used to limit the weighing platform (10) to accommodate only one yak, and when the yak is supplementary feeding, all the weight is applied to the weighing platform (10); before the lifting component lifts the weighing platform (10), the weighing bracket (11) supports the weighing platform (10); the lifting component can lift the weighing platform (10) and separate it from the weighing bracket (11), and the weighing unit (12) can measure the weight of the weighing platform (10) and the yak standing on the weighing platform (10); The automatic weighing system includes a plurality of weighing platforms (10) placed side by side; the automatic weighing system also includes a mobile platform (32) capable of moving a lifting component, a translation driver (33) driving the mobile platform (32) to translate, and the translation driver (33) is capable of moving the lifting component between the plurality of weighing platforms (10); the translation driver (33) is capable of moving the lifting component to the bottom of a weighing platform (10), and the lifting component is capable of lifting the weighing platform (10) and separating it from the weighing bracket (11), thereby measuring the weight of the weighing platform (10) and the yak standing on the weighing platform (10); The automatic weighing system further comprises a positioning assembly, wherein the positioning assembly comprises a fixed positioning unit matched with each weighing platform (10) and a movable positioning unit that moves synchronously with the mobile platform (32); the fixed positioning unit and the movable positioning unit are used to detect whether the position of the mobile platform (32) corresponds to the weighing platform (10) when the mobile platform (32) moves.

2. The automatic weighing system for yak herds according to claim 1, characterized in that: The lifting assembly includes a lifting fixed part (21) and a lifting movable part (22), the lifting fixed part (21) is provided with a lifting driver (23) and a lifting transmission assembly connected to the lifting driver (23), the lifting movable part (22) is connected to the lifting transmission assembly, and the lifting movable part (22) is connected to the weighing platform (10); the lifting driver (23) can drive the lifting movable part (22) to move and thereby lift the weighing platform (10) to a position away from the weighing bracket (11) or place the weighing platform (10) on the weighing bracket (11); The weighing unit (12) is arranged at the bottom of the lifting fixed part (21). After the weighing platform (10) is lifted and separated from the weighing bracket (11), the weighing unit (12) can measure the weight of the weighing platform (10) and the yak standing on the weighing platform (10).

3. The automatic weighing system for yak herds according to claim 2, characterized in that: The lifting driver (23) is a first motor, and the lifting transmission assembly includes a first worm (24) connected to the output shaft of the lifting driver (23), a first gear set (25) connected to the first worm (24), a second worm (26) connected to the first gear set (25), a first transmission rod (27) connecting the first gear set (25) and the second worm (26), a third gear (28) connected to the second worm (26), and a first screw (29) coaxially connected to the third gear (28); an internal threaded hole matching the first screw (29) is provided on the lifting movable part (22), and the first screw (29) can drive the lifting movable part (22) to translate along the axis of the first screw (29) when the first screw (29) rotates; The lifting driver (23) can drive the first worm (24) to rotate, and in turn drive the first screw (29) to rotate through the first gear set (25), the first transmission rod (27), the second worm (26), and the third gear (28).

4. The automatic weighing system for yak herds according to claim 3, characterized in that: Two sets of first gear sets (25) are provided on both sides of the first worm (24), the first gear set (25) comprising a first gear and a second gear meshing with each other, the first gear meshing with the first worm (24); the second gears of the two sets of first gear sets (25) are respectively connected to the two first transmission rods (27), the second gears being provided in the middle of the first transmission rod (27); and second worms (26) are respectively provided at both ends of the first transmission rod (27); The lifting fixed part (21) is provided with four third gears (28) and a coaxially connected first screw (29), and the second worms (26) at both ends of the two first transmission rods (27) are respectively engaged with the four third gears (28); the thread rotation directions of the two first screws (29) connected to the same first transmission rod (27) are the same; the thread rotation directions of the two first screws (29) connected to the two first transmission rods (27) are opposite.

5. The automatic weighing system for yak herds according to claim 2, characterized in that: A plurality of support frames (31) are provided on the lifting movable part (22), the bottom of the support frame (31) is connected to the lifting movable part (22), and the top of the support frame (31) is used to contact the weighing platform (10); the plurality of support frames (31) can balance the contact force between the lifting movable part (22) and the weighing platform (10), so that the force between the lifting movable part (22) and the weighing platform (10) is uniform.

6. The automatic weighing system for yak herds according to claim 1, characterized in that: The automatic weighing system further comprises a translation track (34), and the mobile platform (32) is provided with a roller matching the translation track (34); The mobile platform (32) is provided with a plurality of rollers, including a driving roller (35) and a driven roller (36); the translation driver (33) is provided on the mobile platform (32), and the mobile platform (32) is also provided with a translation transmission component; The mobile platform (32) is provided with two active rollers (35) and two driven rollers (36), a transmission shaft is provided between the two active rollers (35), a first transmission wheel (37) is provided on the translation driver (33), a second transmission wheel (38) is provided on the transmission shaft, and a transmission belt (39) is provided between the first transmission wheel (37) and the second transmission wheel (38); The translation driver (33) can drive the first transmission wheel (37) to rotate, and then drive the two active rollers (35) to rotate through the transmission belt (39), the second transmission wheel (38), and the transmission shaft in sequence.

7. The automatic weighing system for yak herds according to claim 1, characterized in that: The fixed positioning unit includes an NFC tag, the movable positioning unit includes a reader capable of reading the NFC tag, the NFC tag information is associated and matched with the weighing platform (10), and the mobile platform (32) can obtain information of the weighing platform (10) being weighed through the NFC tag and the reader; The fixed positioning unit further includes a laser shielding unit, and the movable positioning unit further includes a laser emitting unit and a laser receiving unit, wherein the laser emitting unit and the laser receiving unit are used to precisely adjust the position of the moving platform (32).

8. The automatic weighing system for yak herds according to claim 6, characterized in that: The automatic weighing system further comprises a drag chain unit, the drag chain unit being used to connect to the mobile platform (32), the drag chain unit comprising a drag chain body (45) and a drag chain transmission assembly connected to the drag chain body (45); the drag chain body (45) comprising a fixed end and a movable end connected to the mobile platform (32); The drag chain transmission assembly comprises two fixed pulleys (46) respectively arranged at both ends of the translation track (34) in the longitudinal direction, a cable, and a connector (48) connected to the bend of the drag chain body (45); one end of the cable is connected to the movable end of the drag chain, and the other end of the cable is connected to the connector (48) after passing through the two fixed pulleys (46) in sequence.

9. The automatic weighing system for yak herds according to claim 6, characterized in that: The mobile platform (32) further includes a support portion (51) and an elastic member (52), wherein the elastic member (52) is used to connect the roller and the mobile platform (32); before the lifting assembly contacts the weighing platform (10), the elastic member (52) is in an extended state, and the support portion (51) is not in contact with the plane where the translation track (34) is located; after the lifting assembly contacts the weighing platform (10), the elastic member (52) is in a compressed state, and the support portion (51) is in contact with the plane where the translation track (34) is located.

10. The automatic weighing system for yak herds according to claim 1, characterized in that: The plurality of weighing platforms (10) are provided with subject identification units (53), and the automatic weighing system further comprises subject identification tags mounted on the limbs of the yaks. The subject identification units (53) can or are being fed on the corresponding weighing platforms (10) and carry subject identification tag information.

11. An automatic weighing method for a yak herd, used in the automatic weighing system for a yak herd according to claim 10, characterized in that: include: Continuously detecting the subject identification tag within the identification range by the subject identification unit (53); After the subject identification unit (53) detects the subject identification tag, the mobile platform (32) is controlled to move to the bottom of the weighing platform (10) where the subject identification unit (53) that detected the subject identification tag is located; Controlling the action of the lifting assembly to lift the weighing platform (10) to a position away from the weighing bracket (11), obtaining the mass value measured by the weighing unit (12), which is related to the mass of the yak currently on the weighing platform (10), subtracting the preset tare value to obtain the tare value, and storing the tare value in association with the subject identification tag information; Control the lifting assembly to place the weighing platform (10) on the weighing bracket (11).

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