Automatic livestock weight sorting system

Abstract

The present invention discloses an automatic livestock weight sorting system, including a main channel and a sorting channel. The main channel has multiple detection areas. A pair of revolving door systems are provided in front of each detection area. Adjacent detection areas are connected through the revolving door systems. Each detection area includes two side walls. A controllable opening mechanism is provided on the side walls corresponding to the sorting channel. The main channel is connected to the corresponding sorting channel through the controllable opening mechanism. An RFID tag detection mechanism for identifying individual sheep is installed within the range of each detection area. The present invention is used for individual sorting of different individuals, such as weight differences, different disease conditions, etc., during the breeding process of a large number of sheep. And the ability to improve the sorting accuracy by changing the number of sorting channels by increasing or decreasing the number of corresponding detection areas.

Description

Technical Field

[0001] The invention belongs to the technical field of livestock breeding population sorting, and in particular relates to a system for realizing rapid sorting according to individual differences in a large number of livestock breeding processes. Background Art

[0002] The technology of separate stalls for breeding is an important technical means in modern animal husbandry. By testing and dividing the physiological indicators of breeding objects such as weight and body temperature, it can effectively improve production efficiency and improve the yield rate.

[0003] At present, most farms and ranches have adopted the fence technology, but the operation mode mainly relies on the manual management mode. Manually fence livestock by manual recording requires a lot of human resources, high labor intensity, and takes a long time. The existing sorting method is time-consuming, labor-intensive, and inefficient. It is already an outdated sorting method and is not suitable for large-scale breeding. For example, the existing livestock grouping generally adopts the weighing method, which has a high degree of manual participation and even requires manual recording of livestock weight information. The weighing and sorting links and the physical examination links require intervention in the livestock's movements, which can easily cause great troubles for livestock due to stress reactions and even lead to population confusion.

[0004] With the development of automation technology, intelligent pen separation systems have replaced traditional manual methods and played an increasingly important role in modern ranches. They can not only separate livestock by weight, but also by other physiological indicators such as body temperature, greatly improving the labor efficiency of agricultural and animal husbandry production.

[0005] However, the popularity of intelligent column separation systems in my country is relatively low. The reasons are as follows:

[0006] 1. The system construction cost is high. Generally speaking, the profit margin of the breeding industry is not high, so farmers tend to be conservative in their investment in non-necessary breeding. The current market price of the existing intelligent fence system is more than 100,000 yuan. For farmers, the breeding cost is too high, making it difficult to promote and apply.

[0007] 2. Farmers need to improve their awareness of the application of new technologies. Farmers have been using traditional farming techniques for many years, and scientific and effective farming methods need to be further promoted and applied. Summary of the invention

[0008] In view of the problems of great sorting difficulty, low sorting accuracy and high degree of manual participation in the process of breeding large numbers of livestock due to individual differences, the present invention provides a system for solving this technical problem, which can realize rapid sorting according to individual differences.

[0009] The solution of the present invention to solve the technical problem is to adopt an automatic livestock weight sorting system, which includes an entrance channel, an entrance gate, an electronic platform scale, an exit gate, a linkage drive mechanism, a linkage door, a standard weight channel, a non-standard weight channel and an auxiliary integrated lock, as well as an automatic control system, which are arranged in sequence from front to back.

[0010] The entrance channel is conical and gradually converges, and its narrow end extends forward and parallel to form a weighing channel, above which an electronic platform scale is placed. The entrance gate and the exit gate are located at the front and rear ends of the electronic platform scale respectively, and the two are opened and closed alternately.

[0011] RFID identification probes (24) and / or image acquisition devices (26) are respectively arranged on the sides of the entrance passage, and a corresponding database unit is established for each cow in the system background. The PLC control system detects the RFID tag information of the target cow individual through the RFID identification probe (24), opens the corresponding database unit to record the weight data, and the PLC control system collects the image information of the cow individual through the image acquisition device (26) and stores it in the corresponding database unit.

[0012] The ends of the weighing channel lead to the standard weight channel and the non-standard weight channel respectively. The linkage drive mechanism and the linkage door are located between the standard weight channel and the non-standard weight channel. After the PLC control system detects that there is no gravity signal from the electronic platform scale (3), it rotates and controls the linkage drive mechanism (7) according to whether the target cow's weight meets the standard, and guides the target cow to enter the standard weight channel (4) or the non-standard weight channel (5).

[0013] The linkage drive mechanism includes a fixed sleeve, a rotating shaft and a driving mechanism. The vertical fixed sleeve is fixedly connected to the ground foundation embedded part through a bracket, and the rotating shaft is matched and fitted in the fixed sleeve and can rotate. The upper and lower ends of the rotating shaft are respectively fixed with a linkage door through a connecting rod. The linkage door is a V-shaped one-piece door. The rotating shaft is located at the center of the V-shaped one-piece door. When the door body on one side closes the corresponding channel, the door body on the other side opens the corresponding channel. Limiting blocks are respectively fixed on the side walls of the non-standard weight channel and the auxiliary one-piece lock to constrain the linkage door.

[0014] The auxiliary integrated lock is located at the rear side of the linkage drive mechanism. The auxiliary integrated lock includes an embedded groove placed horizontally below the ground, in which an underground rotating rod is matched and installed. The two ends of the buried rotating rod are respectively provided with bent gear rods. A hinge seat is fixed in the middle of the buried rotating rod. The hinge seat and the end of the telescopic rod of the electric push rod are hinged together through a pin shaft. When the electric push rod drives the buried rotating rod to rotate, the gear rods at both ends thereof are erected and above the ground. After the gear rods on both sides are above the ground, they can be supported on one side of the linkage door to prevent it from rotating.

[0015] Both ends of the buried rotating rod located in the embedding groove are respectively covered with shaft sleeves, and the shaft sleeves are fixed in the embedding groove.

[0016] The driving mechanism is a rotating motor installed on a corresponding bracket, a driving gear is installed on the upper end of the shaft of the rotating motor, a driven gear is installed on the upper end of the rotating shaft, and the driving gear is meshed with the driven gear.

[0017] The controller controls the rotating motor and the electric push rod as well as the gate linkage opening and closing, the ground groove, the pressure touch switch, the RFID identification probe, and the image acquisition device at the same time.

[0018] The interlocking lock mechanism includes a hidden pin located in a hidden groove and in a hidden state. The bottom of the hidden pin is hinged to the bottom of the hidden groove through a pin shaft. The middle part of each hidden pin is hinged with a linkage rod and a driving rod through a pin shaft. At the same time, a hidden push-pull rod is embedded in the inner ring of the hidden groove. The end of the driving rod is hinged to the hidden push-pull rod, and the end of the hidden push-pull rod is hinged to the telescopic end of the electric push rod.

[0019] Beneficial effects of the present invention: The present invention integrates various resources in combination with existing application technologies, uniformly plans and designs the fence system according to the requirements of farming and animal husbandry, controls the cost in addition to meeting the requirements of the fence system from the functional requirements, and finally realizes the construction of the fence system with low cost and high efficiency, and is used for individual sorting of different individuals such as weight differences and different disease conditions in the process of breeding a large number of livestock. And the ability to improve the sorting accuracy can be improved by changing the number of sorting channels by increasing or decreasing the number of corresponding detection areas.

[0020] The system of the present invention can have multiple control modes, such as automatic operation of the main channel and manual screening of the sorting channel. In the process of individual sorting, for screening based only on weight, the side wall can be opened by automatic control to open the corresponding sorting channel. When humans participate in the diagnosis and identification of the corresponding disease, the corresponding sorting channel can be selected and opened by manually controlling the cutoff (stop) of the main channel and the opening and closing of the side wall.

[0021] After the auxiliary push component is arranged in the present invention, the rotation process of the revolving door can be used to drive the auxiliary push component to move and return, so that individual sheep can be automatically driven in the main channel to ensure that the main channel is continuously unobstructed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a logic relationship block diagram of the system of the present invention.

[0023] Figure 2 It is a top view schematic diagram of the system of the present invention.

[0024] Figure 3 yes Figure 2 Schematic diagram of the side structure of the central linkage drive mechanism.

[0025] Figure 4 yes Figure 3 Top view of the center linkage door.

[0026] Figure 5 yes Figure 2 Schematic diagram of the structure of the auxiliary one-piece lock.

[0027] Figure 6 yes Figure 2 Top view of the central locking mechanism.

[0028] Figure 7 yes Figure 6 One of the side structural diagrams.

[0029] Figure 8 yes Figure 6 The second schematic diagram of the side structure.

[0030] Fig. 9 It is a block diagram of the control system of the present invention.

[0031] Fig.10 It is a system query relationship block diagram.

[0032] Fig.11 It is a system architecture design diagram.

[0033] Fig.12 It is a system function logic flow chart.

[0034] Numbers in the figure: entrance channel 1, entrance gate 2, electronic platform scale 3, standard weight channel 4, non-standard weight channel 5, linkage door 6, linkage drive mechanism 7, auxiliary integrated lock 8, limit block 9, exit gate 10, fixed rotating sleeve 11, rotating shaft 12, driven gear 13, driving gear 14, rotating motor 15, motor seat 16, fixing frame 17, buried rotating rod 18, gear lever 19, hinged seat 20, electric push rod 21, ground embedded groove 22, pressure touch switch 23, RFID identification probe 24, linkage lock mechanism 25, image acquisition device 26, hidden push-pull rod 27, drive rod 28, linkage rod 29, hidden pin 30, pin shaft 31, hidden groove 32, electric push rod 33. DETAILED DESCRIPTION

[0035] In the process of mass livestock breeding, it is very necessary to screen individual livestock. The screening of individual livestock not only considers the individual size (weight), but also the disease and infectious diseases of individual sheep, and carries out targeted feeding and treatment for different groups of sorting. The following is an illustration of the specific application of the automatic livestock weight sorting system.

[0036] According to the planning ideas, the first phase will build an automatic livestock weight measurement system to classify livestock into qualified and unqualified categories based on their daily weight gain.

[0037] According to the construction objectives, the system is designed. The system is divided into three layers from the functional logic layer, namely the measurement system, the screening system and the execution system.

[0038] The measurement system needs to have RFID tag recognition function to identify each cow; the weight measurement system needs to measure the weight index of the cow.

[0039] The screening system determines the quality of breeding cattle based on the periodic weight changes of each cow.

[0040] The execution system responds and executes the opening / closing of the fence gate based on the judgment results.

[0041] The system logic diagram is as follows Figure 1 As shown, the system consists of Figure 2 shown.

[0042] Figure 2 In the embodiment, the automatic livestock weight sorting system is composed of an entrance channel 1, an entrance gate 2, an electronic platform scale 3, an exit gate 10, a linkage drive mechanism 7 and a linkage door 6, which are arranged from front to back. The linkage door 6 has a standard weight channel 4 and a non-standard weight channel 5 on both sides. The auxiliary integrated lock 8 arranged on the rear side of the linkage door 6 can control the locking of the linkage door 6.

[0043] The entrance channel 1 is conical and gradually converges, with a wide proximal end and a narrow distal end, and the narrow end extends forward in parallel to form a weighing channel, which has a built-in electronic platform scale.

[0044] As shown in the figure, two arc-shaped flexible bodies 34 (rubber or waste wheel body pieces) are respectively fixed on the two inner side walls of the entrance channel 1 to prevent the possibility of smaller individuals entering in parallel.

[0045] The weighing channel is a straight channel, that is, the two side walls are parallel facade structures. The data of the electronic platform scale 3 placed above the weighing channel is connected to the background database through a data line. Display equipment can also be added around the system to display the corresponding cattle weight in real time. Since the identity information of each cow is established in advance and an RFID tag is fixed on the cow's ear, and a corresponding database unit is established for each cow in the system background, RFID wireless radio frequency identification uses non-contact automatic identification technology. It automatically identifies the target object and obtains relevant data through radio frequency signals. The identification work does not require human intervention and can work in various harsh environments. By wearing this device for each cow, the identity of each cow can be identified, and the built-in program can identify the identity according to the ID and trigger the program operation.

[0046] When in Figure 1After RFID identification probes 24 and / or image acquisition devices 26 are respectively arranged on the sides of the system entrance channel as shown, the PLC control system detects the weight data information of the target cattle through the RFID identification probe 24, and opens the corresponding database unit to record the weight data, and the PLC control system acquires the image information of the target cattle through the image acquisition device 26 and stores it in the corresponding database unit.

[0047] The entrance gate 2 and the exit gate 10 are located at the front and rear ends of the electronic platform scale 3, respectively, and the two are opened and closed alternately. When the RFID identification probe 24 detects that the target cattle individual passes by and there is no cattle individual on the electronic platform scale 3, the entrance gate 2 is opened. After the target cattle enters the electronic platform scale 3, the entrance gate 2 is always closed to prevent the cattle on the rear side from entering and affecting the weight data of the target cattle. When the weight data of the target cattle is unstable, the exit gate 10 at the rear side remains in a closed state until the data is stable and accurate, and then the exit gate 10 is opened.

[0048] As can be seen from the figure, the end of the weighing channel is a divergent structure, with both sides leading to the standard weight channel 4 and the non-standard weight channel 5. At the same time, the linkage drive mechanism 7 and the linkage door 6 are arranged between the standard weight channel 4 and the non-standard weight channel 5.

[0049] Specific structure such as Figure 3 The linkage drive mechanism 7 in the figure includes a fixed rotating sleeve 11, a rotating shaft 12 and a driving mechanism. The vertical fixed rotating sleeve 11 is fixedly connected to the ground foundation embedded part through a bracket. The rotating shaft 12 is matched and sleeved in the fixed rotating sleeve 11 and can rotate. The upper and lower ends of the rotating shaft 12 are respectively fixed with a linkage door 6 through a connecting rod. The linkage door 6 is as shown in FIG. Figure 4 The figure shows a V-shaped one-piece door, and the rotating shaft 12 is located at the center of the V-shaped one-piece door.

[0050] When the door on one side closes the corresponding passage, the door on the other side opens the corresponding passage, and the limit stopper 9 is fixed on the side wall of the non-standard weight passage 5 and the auxiliary integrated lock 8 to constrain the linkage door 6. The auxiliary integrated lock 8 is located at the rear side of the linkage drive mechanism 7.

[0051] The driving part of the linkage drive mechanism 7 is a rotating motor 15 installed on the corresponding bracket, a driving gear 14 is installed on the upper end of the shaft of the rotating motor, and a driven gear 13 is installed on the upper end of the rotating shaft 12, and the driving gear 14 is meshed with the driven gear 13. The PLC control system simultaneously controls the linkage opening and closing of the rotating motor and each gate (fence).

[0052] Auxiliary one-piece lock 8 Figure 5The figure shows a groove (ground groove 22) placed horizontally below the ground, in which an underground rotating rod 18 is matched and installed. The two ends of the buried rotating rod 18 are respectively provided with bent stop rods 19. A hinge seat 20 is fixed to the middle of the buried rotating rod 18. The hinge seat 20 and the end of the telescopic rod of the electric push rod 21 are hinged together through a pin shaft. When the electric push rod 21 drives the buried rotating rod 18 to rotate, the stop rods 19 at both ends thereof are erected and raised above the ground. After the stop rods on both sides are raised above the ground, they can be supported on one side of the linkage door 6 to prevent it from rotating.

[0053] Both ends of the buried rotating rod 18 in the embedded groove are respectively provided with shaft sleeves, which are fixed in the embedded groove to constrain the rotating rod 18 to maintain its stability.

[0054] In addition, a pressure-touch switch 23 is installed on the side of the limit stopper 9. When any linkage door 6 is closed and touches the corresponding pressure-touch switch 23, the PLC control system receives the touch signal and controls the electric push rod to extend or retract, so that the buried rotating rod 18 rotates to drive the two side bars 19 to stand upright and above the ground, which is used to support and block the linkage door 6 on the other side, so that the linkage door 6 is locked. It is necessary to lock the linkage door 6, otherwise the target cattle will rush into another channel and cause confusion in selection.

[0055] Furthermore, controllable latch mechanisms are installed on the ground at the front side of the entrance gate 2 and the rear side of the exit gate 10 to improve the closing strength of the entrance gate 2 and the exit gate 10 to prevent cattle from hitting the gates and causing damage.

[0056] like Figure 6-Figure 8 The controllable door latch mechanism shown in the figure is that a dark groove 32 is arranged horizontally on the ground, and pin shafts 31 are fixed longitudinally on both sides of the dark groove 32, and the pin shafts 31 are fixed deep into the ground. A dark pin 30 is hinged on the outer side of each pin shaft 31, and the middle parts of multiple dark pins 30 are hinged to the same linkage rod 29 at the same time. The end of the linkage rod 29 is hinged to the driving rod 28, and the end of the driving rod 28 is hinged to the hidden push-pull rod 27, and the end of the hidden push-pull rod 27 is hinged to the telescopic end of the electric push rod 33. The electric push rod 33 is placed horizontally in the dark groove 32. The opening and closing states of the entrance gate 2 and the exit gate 10 are controlled by the PLC control system. Along with the opening and closing signals of the entrance gate 2 and the exit gate 10, the PLC control system controls the opening and closing actions of the controllable door latch mechanisms on the front side of the entrance gate 2 and the rear side of the exit gate 10 respectively.

[0057] The project plan follows the principles of applicability, accuracy and ease of use when designing.

[0058] Applicability: Realize the input of multi-column conditions on the computer (limited selection).

[0059] Accuracy: The system accurately expresses the actual processing and results after weighing each cow.

[0060] Ease of use: Users do not need special knowledge, as long as they understand the basic operations, they can operate this system without any obstacles.

[0061] PLC control system uses programmable memory to store programs internally, execute user-oriented instructions such as logic operations, sequence control, timing, counting and arithmetic operations, and control various types of mechanical action processes through digital or analog input / output, such as Fig. 9 RFID wireless radio frequency identification can also be used to realize real-time query of the database, as shown in the figure Fig.10 shown.

[0062] This technology can be used to compare the weight of identified cattle and generate corresponding control signal instructions to implement access control system execution triggered by conditions.

[0063] The database is a warehouse built on a computer storage device that installs a livestock screening data structure to organize, store and manage data. The signal data transmitted by the measurement sensor is stored in the database for record comparison. The system architecture design is as follows Fig.11 shown.

[0064] The system function logic is as follows:

[0065] ① System initialization, including closing the exit door of the measurement area, closing the door of sorting area A, and closing the door of sorting area B.

[0066] ②When the cow enters the RFID identification area, the identification is completed, triggering the weight measurement counter to transmit the weight detection data and upload it to the database.

[0067] ③ PLC extracts the comparison weight value in the database and calculates the judgment result.

[0068] ④Transmit the switch signal to the electric push rod (or cylinder) control unit based on the judgment result.

[0069] ⑤ When the cow is detected and the inspection is completed, the system returns to its initial state.

[0070] The judgment condition is as follows: Fig.12 shown.

[0071] If it is judged as qualified, the exit door of the measurement area, the door of area A, will be opened;

[0072] If it fails, open the exit door of the measurement area, the door of area B.

[0073] Serial number name model quantity unit Remark 1 PLC S7200-214XP 1 indivual Siemens 2 Programming cable 6GK15710BA000AA0 1 indivual Shenzhen Kehua 3 Industrial Control Computer IPC6L 1 tower Advantech 4 monitor 19 inches 1 tower Lenovo 5 Switching Power Supply 24V10A 1 indivual Mingwei 6 Electric control box 300X400X260 1 indivual 7 cylinder 3 indivual Required travel parameters 8 Solenoid valve 3 indivual 9 Air Compressor 1 tower 10 Weighbridge 0~3 tons, 232 serial communication 1 indivual Leqi 11 Support software 1 set Qingxuan Software independently developed

[0074] The system operation has the following functional indicators:

[0075] 1) Each cow can be identified and recorded.

[0076] 2) Capable of weighing designated species (cattle) with a range of 3 tons and an accuracy of ±0.2kg.

[0077] 3) Ability to determine the weight gain of cattle within a fixed period of time and select cattle based on the weight gain.

[0078] 4) The control system can identify and judge the conditions and transmit the opening and closing signals of the partition gates.

[0079] 5) The execution system can open and close the partition door according to the signal provided by the control system.

Claims

1. A livestock weight automatic sorting system, characterized in that: An entrance channel (1), an entrance gate (2), an electronic platform scale (3), an exit gate (10), a linkage drive mechanism (7), a linkage door (6), a standard weight channel (4) and a non-standard weight channel (5) are arranged in sequence from front to back. The entrance channel (1) is conical and gradually converges, and its narrow end extends forward and parallel to form a weighing channel. An electronic platform scale (3) is arranged above the weighing channel. The entrance gate (2) and the exit gate (10) are respectively located at the front end and the rear end of the electronic platform scale (3), and the two are controlled by the PLC control system to open and close alternately. RFID identification probes (24) and / or image acquisition devices (26) are respectively arranged on the sides of the entrance channel. A corresponding database unit is established for each cow in the system background. The PLC control system detects the RFID tag information of the target cow individual through the RFID identification probe (24), opens the corresponding database unit to record the weight data, and the PLC control system collects the image information of the cow individual through the image acquisition device (26) and stores it in the corresponding database unit; the ends of the weighing channel lead to the standard weight channel (4) and the non-standard weight channel (5) respectively, and the linkage drive mechanism (7) and the linkage door (6) are located between the standard weight channel (4) and the non-standard weight channel (5). After the PLC control system detects that there is no gravity signal on the electronic platform scale (3), it rotates and controls the linkage drive mechanism (7) according to whether the weight of the target cow meets the standard, and guides the target cow to enter the standard weight channel (4) or the non-standard weight channel (5). The linkage drive mechanism (7) comprises a fixed rotating sleeve (11), a rotating shaft (12) and a driving mechanism. The vertical fixed rotating sleeve (11) is fixedly connected to the ground foundation embedded part through a bracket. The rotating shaft (12) is matched and sleeved in the fixed rotating sleeve (11) and can rotate. The upper and lower ends of the rotating shaft (12) are respectively fixed with a linkage door (6) through a connecting rod. The linkage door (6) is a V-shaped one-piece door. The rotating shaft (12) is located at the center of the V-shaped one-piece door. When the door body on one side closes the corresponding channel, the door body on the other side opens the corresponding channel. The limit stopper (9) is respectively fixed on the side walls of the non-standard weight channel (5) and the auxiliary one-piece lock (8) to constrain the linkage door (6). The driving part of the linkage drive mechanism (7) is a rotating motor (15) installed on the corresponding bracket. The upper end of the shaft of the rotating motor is equipped with a driving gear (14). The upper end of the rotating shaft (12) is equipped with a driven gear (13). , the driving gear (14) is meshed with the driven gear (13); a pressure-touch switch (23) is installed on the side of the limit stopper (9); when any linkage door (6) is closed and touches the corresponding pressure-touch switch (23), the PLC control system receives the touch signal and controls the electric push rod to extend or retract, so that the buried rotating rod (18) rotates and drives the two side levers (19) thereof to stand upright and above the ground, so as to support and block the linkage door (6) on the other side, so that the linkage door (6) is locked;Two arc-shaped flexible bodies (34) are fixed on the two inner side walls of the entrance channel (1) to prevent the possibility of smaller individuals entering side by side. In the process of automatic operation of the main channel and manual screening of the sorting channel, for screening based only on weight, the side wall is opened by automatic control to open the corresponding sorting channel, and the corresponding sorting channel is selected and opened by manual control of the main channel cutoff and manual control of the side wall opening and closing.

2. The automatic livestock weight sorting system according to claim 1, characterized in that: The PLC control system controls the rotating motor and the linkage opening and closing of each gate at the same time.

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