Control method of a narrowband transmission system and narrowband transmission device thereof

Abstract

The application discloses a control method of a narrow-band conveying system and a narrow-band conveying device thereof, and relates to the field of narrow-band sorting control. The number of narrow bands carrying goods is detected by a detection device, and the number of narrow bands is marked as a group of narrow bands by a control device. When the group of narrow bands moves to a starting position, the control device determines the longitudinal movement speed of each narrow band in the group of narrow bands according to the deflection parameter of the goods. The friction between the goods and the narrow bands can be used to guide the goods and move the goods out. When the goods are not deflected, the plurality of narrow bands in the group of narrow bands can be started simultaneously and move at the same speed to drive the goods to move, so that the bottom end of the goods can move synchronously when the goods move to a discharging position. The goods can be prevented from being tilted when moving, the impact caused by the tilted packaging shell of the goods is effectively avoided, and the service quality is improved.

Description

Technical Field

[0001] This invention relates to the field of narrowband sorting control, and more particularly to a control method for a narrowband conveying system and a narrowband conveying device thereof. Background Technology

[0002] Narrow belt sorting machines are machines that sort items according to pre-set computer instructions and deliver the sorted items to designated locations. They mainly consist of a barcode scanning system, a narrow belt machine, a conveyor, and an unloading port. Goods are transported on the conveyor to the narrow belt machine, where the barcode scanning system scans them. The controller analyzes the data and, when the goods are ready to be unloaded at the designated unloading port, the narrow belt machine moves the goods to the unloading port for unloading. With the development of laser scanning, barcode, and computer control technologies, the use of narrow belt sorting machines in logistics is becoming increasingly widespread.

[0003] In existing technical solutions, goods are often tilted during the transport process of narrow strip sorting devices. This is because the adjacent narrow strips only start to carry the goods away when they reach the designated unloading position. However, the adjacent narrow strips cannot reach the unloading position at the same time, which creates a speed difference between the adjacent narrow strips. This causes the goods on the narrow strips to tilt and move towards the unloading port, making it easy for the packaging shell to collide with the unloading port, resulting in damage to the packaging shell and an increase in customer complaints. Summary of the Invention

[0004] The main objective of this invention is to propose a control method for a narrowband conveyor system and a narrowband conveyor device thereof, aiming to solve the problem that existing methods for controlling narrowband conveyor devices easily lead to collisions between the packaging shell of the goods on the narrowband conveyor and the unloading port.

[0005] To achieve the above objectives, the present invention proposes a control method for a narrowband transmission system and a narrowband transmission device thereof, wherein the method for controlling the narrowband transmission device includes:

[0006] The narrow-strip conveyor system includes a main conveyor belt arranged laterally, a plurality of narrow strips arranged longitudinally on the main conveyor belt, a first drive device for driving the main conveyor belt to move laterally, a second drive device for driving the plurality of narrow strips to move longitudinally and corresponding to each other in number, a detection device for detecting goods, an image acquisition device for capturing images of goods on the main conveyor belt, and a control device electrically connected to the first drive device, the second drive device and the detection device.

[0007] The control method for the narrowband transmission system includes:

[0008] S1: When goods are placed on the narrow strips of the main conveyor belt for lateral transport, the control device acquires the information of the goods placed on the narrow strips detected by the detection device, the image of the goods acquired by the image acquisition device, and the number n of the narrow strips carrying goods detected by the detection device, where n is a positive integer greater than or equal to 2, and records the n narrow strips as a group of narrow strips.

[0009] S2: Based on the cargo information, the control device determines the corresponding discharge position of the cargo;

[0010] S3: Select the starting position corresponding to the narrow belt group and the preset longitudinal speed z of the narrow belt group according to the discharge position and the lateral movement speed of the main conveyor belt;

[0011] S4: Obtain the skew parameter x of the cargo based on the cargo image acquired by the image acquisition device;

[0012] S5: When the skew parameter x is greater than the set value, the control device obtains the longitudinal movement speed y of each narrow strip in the narrow strip group according to the skew parameter x and the preset longitudinal movement speed z, and controls each narrow strip in the narrow strip group to move synchronously and at the corresponding longitudinal movement speed y, thereby driving the goods to the discharge position.

[0013] S6: When the skew parameter x is lower than the set value, the control device controls each narrow strip in the narrow strip group to move synchronously and at the preset longitudinal movement speed z, thereby moving the goods to the discharge position.

[0014] Optionally, it also includes:

[0015] S1: When goods are transported laterally on the narrow strip of the main conveyor belt, the control device acquires information about the goods placed on the single narrow strip by the detection device.

[0016] S2: Based on the cargo information, the control device determines the corresponding discharge position of the cargo;

[0017] S3: Based on the discharge position and the lateral movement speed of the main conveyor belt, select the corresponding starting position of the narrow belt and drive it with the corresponding preset longitudinal movement speed z to move the goods to the discharge position.

[0018] Optionally, in step S5, there is a set mapping relationship between the skew parameter x and the longitudinal motion velocity y.

[0019] Optionally, the distances between the contact positions of each narrow strip on the narrow strip group and the goods and the starting position are set as n1, n2, and n3 respectively, according to the narrow strips recorded from near to far, and the corresponding longitudinal movement speeds are set as y1, y2, and y3 respectively, with the magnitudes of y1, y2, and y3 increasing sequentially, and y3 being less than or equal to the preset longitudinal movement speed z.

[0020] Optionally, the control device calculates the number of narrowbands in the narrowband group as n+2, and records them as adjacent narrowbands in the narrowband group detected by the detection device.

[0021] Optionally, the detection device includes:

[0022] The barcode scanning component scans the barcodes on the goods;

[0023] A detection component used to detect the number of narrow strips carrying goods.

[0024] Optionally, the detection component includes a plurality of light sensors disposed on the narrow band, and the output terminal of the light sensors is electrically connected to the control device.

[0025] In the technical solution provided by this invention, when the detection device detects the number of narrow strips carrying goods and marks them as a group of narrow strips by the control device, when the narrow strip group moves to the starting position, the control device determines the longitudinal movement speed of each narrow strip in the narrow strip group by the deflection parameter of the goods. It can use the friction between the goods and the narrow strips to guide the goods and transport them out. When the goods are not deflected, multiple narrow strips in the narrow strip group can start simultaneously and move at the same speed to drive the goods to move. This allows the bottom of the goods to move synchronously when it moves to the discharge position, avoiding the situation where adjacent narrow strips cannot start at the same time, which would cause the goods to tilt during movement. This effectively avoids the impact of the packaging shell and improves the service quality. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 A flowchart illustrating an embodiment of the method for controlling a narrowband transmission device provided by the present invention;

[0028] Figure 2 for Figure 1 Flowchart of a first embodiment of a method for controlling a narrowband transmission device;

[0029] Figure 3 for Figure 1 A schematic flowchart of a second embodiment of a method for controlling a narrowband transmission device;

[0030] Figure 4 for Figure 1 A schematic diagram of the skew parameter x measurement method for controlling a narrowband transmission device;

[0031] Figure 5 for Figure 1 A schematic diagram of the control device structure for the method of controlling a narrowband transmission device.

[0032] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0035] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0036] Currently, commonly used methods for controlling narrow-band conveyor systems have significant problems. During the movement of goods by the narrow band, due to the time difference between the start-up of adjacent narrow bands, the goods may tilt and fly off due to friction between the narrow band and the goods. In this situation, the packaging of the goods is highly susceptible to impact and damage. To solve these problems, this invention provides a control method for a narrow-band conveyor system and a corresponding narrow-band conveyor device. Figures 1 to 3 This is a specific embodiment of the method for controlling a narrowband transmission device provided by the present invention.

[0037] like Figure 5 As shown, the control device may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to enable communication between these components. The user interface 1003 may include a display screen or an input unit such as a keyboard; optionally, the user interface 1003 may also include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a Wireless-Fidelity (Wi-Fi) interface). The memory 1005 may be high-speed random access memory (RAM) or stable non-volatile memory (NVM), such as a disk storage device. The memory 1005 may also optionally be a storage device independent of the aforementioned processor 1001.

[0038] Those skilled in the art will understand that Figure 5 The structure shown does not constitute a limitation on the control device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0039] like Figure 5 As shown, the memory 1005, which serves as a storage medium, may include an operating system, a network communication module, and a signal receiving module.

[0040] exist Figure 5 In the control device shown, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction and settings with the user; the control device of the present invention calls the control program stored in the memory 1005 through the processor 1001 and executes the narrowband transmission system control method provided in the embodiment of the present invention.

[0041] Please see Figure 1 The narrow-band conveyor system includes a main conveyor belt arranged laterally, a plurality of narrow belts arranged longitudinally on the main conveyor belt, a first drive device for driving the main conveyor belt to move laterally, a second drive device for driving the plurality of narrow belts to move longitudinally and corresponding to each other in number, a detection device for detecting goods, an image acquisition device for capturing images of goods on the main conveyor belt, and a control device electrically connected to the first drive device, the second drive device and the detection device.

[0042] The control method for the narrowband transmission system includes:

[0043] S1: When goods are placed on the narrow strips of the main conveyor belt for lateral transport, the control device acquires the information of the goods placed on the narrow strips detected by the detection device, the image of the goods acquired by the image acquisition device, and the number n of the narrow strips carrying goods detected by the detection device, where n is a positive integer greater than or equal to 2, and records the n narrow strips as a group of narrow strips.

[0044] S2: Based on the cargo information, the control device determines the corresponding discharge position of the cargo;

[0045] S3: Select the starting position corresponding to the narrow belt group and the preset longitudinal speed z of the narrow belt group according to the discharge position and the lateral movement speed of the main conveyor belt;

[0046] S4: Obtain the skew parameter x of the cargo based on the cargo image acquired by the image acquisition device;

[0047] S5: When the skew parameter x is greater than the set value, the control device obtains the longitudinal movement speed y of each narrow strip in the narrow strip group according to the skew parameter x and the preset longitudinal movement speed z, and controls each narrow strip in the narrow strip group to move synchronously and at the corresponding longitudinal movement speed y, thereby driving the goods to the discharge position.

[0048] S6: When the skew parameter x is lower than the set value, the control device controls each narrow strip in the narrow strip group to move synchronously and at the preset longitudinal movement speed z, thereby moving the goods to the discharge position.

[0049] It should be noted that the specific implementation of the first and second drive devices is not limited. They can be driven by an electric roller, a DC motor with a reducer, etc., and are not limited here.

[0050] Therefore, after the detection device detects the number of narrow strips carrying goods and marks them as a group by the control device, the image acquisition device acquires images of the goods to obtain the skew parameters. When the narrow strip group moves to the starting position, if the skew parameter of the goods is large, the control device uses the skew parameter to determine the longitudinal movement speed of each narrow strip in the narrow strip group. It can use the friction between the goods and the narrow strips to guide the goods to the correct position and transport them out. When the skew parameter of the goods is small, it means that the goods are not tilted at this time. At this time, multiple narrow strips in the narrow strip group can start simultaneously and drive the goods to move at a preset longitudinal movement speed. This allows the bottom of the goods to move simultaneously when they move to the discharge position, avoiding the situation where adjacent narrow strips cannot start at the same time, which would cause the goods to tilt during movement. This effectively avoids the impact of the packaging shell and improves the service quality.

[0051] Reference Figure 2 The goods on the narrow belt vary in size. For larger goods, multiple narrow belts will carry and move them. However, for smaller goods, the goods are located on only one narrow belt. In this case, the control method described above is implemented. To improve the versatility of application scenarios, in embodiments of the present invention, the method for controlling the narrow belt conveyor further includes:

[0052] S1: When goods are transported laterally on the narrow strip of the main conveyor belt, the control device acquires information about the goods placed on the single narrow strip by the detection device.

[0053] S2: Based on the cargo information, the control device determines the corresponding discharge position of the cargo;

[0054] S3: Based on the discharge position and the lateral movement speed of the main conveyor belt, select the starting position corresponding to the narrow belt, and drive it with the corresponding preset longitudinal movement speed z to move the goods to the discharge position. When the goods are only located on one of the narrow belts, it is only necessary to obtain the goods information through the detection device, and then determine the discharge position of the goods, the starting position of the narrow belt, and the preset longitudinal movement speed of the narrow belt through the control device. When the narrow belt moves to the starting position, the narrow belt starts and moves at the preset longitudinal movement speed to move the goods to the discharge position. This is suitable for transporting goods on a single narrow belt, improving the versatility of application scenarios.

[0055] Reference Figure 4To ensure that tilted goods can be corrected during transport, the control device needs to determine the longitudinal movement speed y corresponding to different narrow bands based on the skew parameter x. In this embodiment of the invention, in step S5, there is a set mapping relationship between the skew parameter x and the longitudinal movement speed y. Based on the magnitude of the skew parameter x, the control device determines the longitudinal movement speed y corresponding to different narrow bands. Determining the longitudinal movement speed y of the narrow bands based on the set mapping relationship is more accurate, ensuring that tilted goods can be corrected in a timely manner during transport.

[0056] Specifically, in the technical solution of this invention, the distances from the contact points of each narrow strip on the narrow strip group to the starting position are set as n1, n2, and n3, respectively, according to the narrow strips recorded from near to far, and their corresponding longitudinal movement speeds are set as y1, y2, and y3, respectively. The values ​​of y1, y2, and y3 increase sequentially, and y3 is less than or equal to a preset longitudinal movement speed z. As shown in the table below, the number of narrow strips is n, and there are n possible longitudinal movement speeds. Three narrow strips are selected for explanation below:

[0057] n1, n2, and n3 are three narrow straps used to carry goods. The distances from the contact point between the three straps and the goods to the starting position of the straps are respectively set as m1, m2, and m3, where m1, m2, and m3 increase sequentially. The longitudinal movement speeds of the three straps corresponding to n1, n2, and n3 are respectively set as y1, y2, and y3, and y1, y2, and y3 increase sequentially. The further the contact point between the goods and the straps is from the starting position, the faster the longitudinal movement speed of the straps, so as to facilitate the straps in guiding the tilted goods to the correct position.

[0058]

[0059] Reference Figure 3 The detection device detects the number of narrow strips used to carry goods and records it as n. However, in actual detection, the detection device may fail to detect situations where the edge of the goods is located on one of the narrow strips for various reasons. In this case, if the narrow strips in the narrow strip group move directly while the narrow strip in contact with the edge of the goods remains stationary, the goods will still tilt when discharging. In this embodiment of the invention, the control device calculates the number of narrow strips in the narrow strip group as n+2 and records them as adjacent narrow strips located in the narrow strip group detected by the detection device. The detection device detects the number of narrow strips carrying goods as n, while the control device records the number of narrow strips carrying goods as n+2, and records the two extra narrow strips as the narrow strips adjacent to the front and rear ends of the narrow strip group. This ensures that the narrow strips outside the narrow strip group recorded by the control device will not contact the goods, preventing the narrow strips detected by the detection device from affecting the movement of the goods and preventing the goods from tilting and running out.

[0060] The detection device is mainly used to detect the number of narrow strips used to carry goods and to extract goods information. In an embodiment of the present invention, the detection device includes a barcode scanning component and a detection component. The barcode scanning component is used to scan the barcode on the goods, and the detection component is used to detect the number of narrow strips carrying the goods. The barcode scanning component in the detection device can scan the barcode to extract information when the goods are placed on the narrow strips, and at the same time, the detection component detects the number of narrow strips carrying the goods, and transmits both the goods information and the number of narrow strips to the control device.

[0061] Specifically, in the technical solution of the present invention, the detection component includes multiple light sensors disposed on the narrow band. Multiple light sensors located on one narrow band form a light sensor group, and the output terminal of the light sensor is electrically connected to the control device. By using the arrangement of light sensors to detect the number of narrow bands used to carry goods, when goods located on the narrow band will block the light sensors, and the control device cannot receive light signals, it determines that the corresponding narrow band in the corresponding light sensor group is used to carry goods. Furthermore, when multiple light sensors in a light sensor group are blocked, the control device only determines that the narrow band corresponding to that light sensor group is used to carry goods, thus effectively and accurately detecting the narrow bands used to carry goods.

[0062] It should be understood that the above are merely illustrative examples and do not constitute any limitation on the technical solutions of the present invention. In specific applications, those skilled in the art can make settings as needed, and the present invention does not impose any restrictions on this.

[0063] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of this invention. In practical applications, those skilled in the art can select some or all of the workflow to achieve the purpose of this embodiment according to actual needs, and no restrictions are imposed here.

[0064] In addition, for technical details not described in detail in this embodiment, please refer to the smart watch control method provided in any embodiment of the present invention, which will not be repeated here.

[0065] Furthermore, it should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0066] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0067] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as read-only memory (ROM) / RAM, magnetic disk, optical disk), and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0068] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made under the concept of the present invention using the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A control method for a narrowband transmission system, characterized in that, The narrow-strip conveyor system includes a main conveyor belt arranged laterally, a plurality of narrow strips arranged longitudinally on the main conveyor belt, a first drive device for driving the main conveyor belt to move laterally, a second drive device for driving the plurality of narrow strips to move longitudinally and corresponding to each other in number, a detection device for detecting goods, an image acquisition device for capturing images of goods on the main conveyor belt, and a control device electrically connected to the first drive device, the second drive device and the detection device. The control method for the narrowband transmission system includes: S1: When goods are placed on the narrow strips of the main conveyor belt for lateral transport, the control device acquires the information of the goods placed on the narrow strips detected by the detection device, the image of the goods acquired by the image acquisition device, and the number n of the narrow strips carrying goods detected by the detection device, where n is a positive integer greater than or equal to 2, and records the n narrow strips as a group of narrow strips. S2: Based on the cargo information, the control device determines the corresponding discharge position of the cargo; S3: Select the starting position corresponding to the narrow belt group and the preset longitudinal speed z of the narrow belt group according to the discharge position and the lateral movement speed of the main conveyor belt; S4: Obtain the skew parameter x of the cargo based on the cargo image acquired by the image acquisition device; S5: When the skew parameter x is greater than the set value, the control device obtains the longitudinal movement speed y of each narrow strip in the narrow strip group according to the skew parameter x and the preset longitudinal movement speed z, and controls each narrow strip in the narrow strip group to move synchronously and at the corresponding longitudinal movement speed y, thereby driving the goods to the discharge position. S6: When the skew parameter x is lower than the set value, the control device controls each narrow strip in the narrow strip group to move synchronously and at the preset longitudinal movement speed z, driving the goods to the discharge position; The control device calculates the number of narrow bands in the narrow band group as n+2, and records them as adjacent narrow bands in the narrow band group detected by the detection device. The detection device detects n narrow bands carrying goods, while the control device records n+2 narrow bands carrying goods. The two extra narrow bands are recorded as adjacent narrow bands at the front and rear ends of the narrow band group, respectively. This ensures that narrow bands outside the narrow band group recorded by the control device will not come into contact with the goods, preventing the narrow bands detected by the detection device from affecting the movement of the goods and preventing the goods from tilting and running out.

2. The control method for the narrowband transmission system as described in claim 1, characterized in that, Also includes: S1: When goods are transported laterally on the narrow strip of the main conveyor belt, the control device acquires information about the goods placed on the single narrow strip by the detection device. S2: Based on the cargo information, the control device determines the corresponding discharge position of the cargo; S3: Based on the discharge position and the lateral movement speed of the main conveyor belt, select the starting position corresponding to the narrow belt, and drive it with the corresponding preset longitudinal movement speed z to move the goods to the discharge position.

3. The control method for the narrowband transmission system as described in claim 1, characterized in that, In step S5, there is a set mapping relationship between the skew parameter x and the longitudinal motion velocity y.

4. The control method for the narrowband transmission system as described in claim 3, characterized in that, The distances between the contact points of each narrow strip on the narrow strip group and the goods and the starting position are set as n1, n2, and n3 respectively, according to the narrow strips recorded from near to far, and the corresponding longitudinal movement speeds are set as y1, y2, and y3 respectively. The magnitudes of y1, y2, and y3 increase sequentially, and y3 is less than or equal to the preset longitudinal movement speed z.

5. The control method for the narrowband transmission system as described in claim 1, characterized in that, The control device calculates the number of narrowbands in the narrowband group as n+2, and records them as adjacent narrowbands in the narrowband group detected by the detection device.

6. A narrowband conveying device, and a control method applicable to the narrowband conveying system of any one of claims 1 to 5, characterized in that, The detection device includes: The barcode scanning component scans the barcodes on the goods; A detection component used to detect the number of narrow strips carrying goods.

7. The narrowband conveying device as described in claim 6, characterized in that, The detection component includes multiple light sensors disposed on the narrow band, and the output terminals of the light sensors are electrically connected to the control device.

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