A counting method and system for conveying articles on a belt

Abstract

The application discloses a kind of technical method, system, device, electronic equipment and computer storable medium for conveying belt conveying article, belong to conveying belt material detection technical field.It includes: S1, obtains trigger signal, judges whether trigger signal is stable in preset time;If yes, enter next step, if no, reacquire trigger signal and judge;S2, according to the trigger time of trigger signal, judge the conveying direction and conveying state of conveying article;According to the conveying direction and conveying state of article, the quantity of conveying article is obtained.Counting is accurate, anti-interference ability is strong, can distinguish the different state of conveying article, solve the problem of "counting is not accurate, anti-interference ability is poor" in prior art.

Description

Technical Field

[0001] This application relates to the field of conveyor belt material detection technology, and in particular to a counting method and system for conveyor belt transported items. Background Technology

[0002] The statements in this section merely refer to the background art relevant to this application and do not necessarily constitute prior art.

[0003] With the advancement of social technology and the development of production, conveyor belts are being used more and more widely in factories. Modern automatic counting equipment for conveyor belts has completely replaced the heavy manual counting of the past, greatly reducing labor costs and improving production efficiency.

[0004] Traditional counting techniques do not fully consider the various movements of materials on the conveyor belt, have a single counting method, and struggle to accurately identify and count materials that are stacked, connected, or reversed. Furthermore, their hardware structure is complex, with poor expandability and high cost. They also have poor resistance to misoperation and inaccurate counting. Many existing designs for object counter circuits on conveyor belts are designed for different applications, resulting in significant limitations and poor versatility.

[0005] In addition to electromagnetic interference and strong external light interference, photoelectric counting detection is prone to inaccurate judgment, miscounting, overcounting, or undercounting when items on the conveyor belt are stacked, upside down, or connected. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this application provides a counting method, system, device, electronic device, and computer-readable storage medium for transporting items on a conveyor belt. This method can count items based on their different movements on the conveyor belt, avoiding omissions and errors, and improving anti-interference capabilities.

[0007] In one aspect, this application provides a counting method for transporting items on a conveyor belt;

[0008] A method for counting items transported by a conveyor belt, comprising:

[0009] S1. Obtain the trigger signal and determine whether the trigger signal is stable within a preset time. If yes, proceed to the next step. If no, re-obtain the trigger signal and determine it.

[0010] S2. Determine the conveying direction and conveying status of the conveyed items based on the triggering time of the trigger signal; obtain the quantity of the conveyed items based on the conveying direction and conveying status.

[0011] Secondly, this application provides a counting system for conveying items on a conveyor belt;

[0012] A counting system for conveying items on a conveyor belt includes an infrared through-beam sensor A, an infrared through-beam sensor MA, an infrared through-beam sensor MB, an infrared through-beam sensor B, and a controller.

[0013] The infrared through-beam sensor A, the infrared through-beam sensor MA, the infrared through-beam sensor MB, and the infrared through-beam sensor B are used to send trigger signals to the controller according to the conveying status of the items being transported by the conveyor belt.

[0014] The controller is used to perform the following steps:

[0015] S1. Acquire the trigger signal and determine whether the trigger signal is stable within a preset time. If yes, proceed to the next step. If no, reacquire the trigger signal and determine the stability.

[0016] S2. Determine the conveying direction and conveying status of the conveyed items based on the triggering time of the triggering signal; obtain the quantity of conveyed items based on the number of triggering times, conveying direction, and conveying status of the triggering signal.

[0017] Thirdly, this application provides a counting device for conveying articles on a conveyor belt;

[0018] A counting device for conveying items on a conveyor belt, comprising:

[0019] The trigger signal acquisition module is configured to: acquire a trigger signal, determine whether the trigger signal is stable within a preset time; if yes, proceed to the next step; if no, reacquire the trigger signal and determine it again.

[0020] The transported item counting module is configured to: determine the transport direction and transport status of the transported items based on the trigger time of the trigger signal; and obtain the quantity of transported items based on the number of triggers, transport direction, and transport status of the trigger signal.

[0021] Fourthly, this application provides an electronic device;

[0022] An electronic device includes a memory and a processor, as well as computer instructions stored in the memory and running on the processor, which, when executed by the processor, perform the steps of the above-described counting method for conveying items on a conveyor belt.

[0023] Fifthly, this application provides a computer-readable storage medium;

[0024] A computer-readable storage medium for storing computer instructions, which, when executed by a processor, perform the steps of the above-described counting method for conveyor belt transport of items.

[0025] Compared with the prior art, the beneficial effects of this application are:

[0026] 1. This application uses four sensors to identify objects. By judging the triggering and departure sequence of different sensors, it realizes multiple functions such as single-item counting, connected counting, segment-to-connected counting, connected-to-segment counting, forward counting, and backward counting. It solves the problem of inaccurate counting caused by different movement conditions of items on the conveyor belt, avoids missed counting and incorrect counting, greatly reduces errors, and improves production efficiency.

[0027] 2. This application independently determines whether the received trigger signal fluctuates within a certain period of time. If fluctuation occurs, the signal is considered an interference signal. If the signal remains stable for a certain period of time, the signal is considered a valid trigger signal. It can filter out interference factors such as electromagnetic interference from the equipment and strong external light, and solve the problem of incorrect detection caused by random, transient, and unstable signals. It filters out interference and ensures accurate counting.

[0028] 3. When this application receives a trigger signal (non-interference signal) that has been filtered and determined to be normal, but whose trigger time is significantly shorter than the single-packet trigger time under normal conveyor belt operation, or whose signal trigger timing does not conform to the normal trigger process, and cannot be used as a valid trigger signal for logical analysis, the false trigger signal will be removed from the valid trigger signal to ensure that the logical analysis of the normal trigger process is not affected by the false trigger signal.

[0029] 4. This application adopts the standard Modbus protocol, which has strong scalability, low cost, and can be easily connected to other industrial electronic equipment. Attached Figure Description

[0030] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0031] Figure 1 A flowchart illustrating a counting method for conveyor belt transporting items, provided in an embodiment of this application;

[0032] Figure 2 A schematic diagram of the structure of a counting system for conveyor belt transporting items provided in an embodiment of this application;

[0033] In the diagram: 1. Infrared beam sensor A; 2. Infrared beam sensor MA; 3. Infrared beam sensor MB; 4. Infrared beam sensor B;

[0034] The arrows indicate the direction of the conveyor belt's movement. Detailed Implementation

[0035] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0036] It should be noted that the terminology used herein is for the purpose of describing particular implementations only and is not intended to limit the exemplary implementations according to this application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. Furthermore, it should be understood that the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0037] Where there is no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0038] Example 1

[0039] In the prior art, the counting methods used for conveyor belts transporting items are inaccurate, have weak anti-interference capabilities, and cannot distinguish different states of item transport; therefore, this application provides a counting method for conveyor belts transporting items.

[0040] A method for counting items transported by a conveyor belt, comprising:

[0041] S1. Acquire the trigger signal and determine whether the trigger signal is stable within a preset time. If yes, proceed to the next step; if not, reacquire the trigger signal and determine its stability. The trigger signals include a first occlusion trigger signal, a first departure trigger signal, a second occlusion trigger signal, a second departure trigger signal, a third occlusion trigger signal, a third departure trigger signal, a fourth occlusion trigger signal, and a fourth departure trigger signal. The first occlusion trigger signal and the first departure trigger signal are emitted by infrared photoelectric sensor A1; the second departure trigger signal and the second occlusion trigger signal are emitted by infrared photoelectric sensor MA2; the third occlusion trigger signal and the third departure trigger signal are emitted by infrared photoelectric sensor MB3; and the fourth occlusion trigger signal and the fourth departure trigger signal are emitted by infrared photoelectric sensor B4. Infrared photoelectric sensors A1, MA2, MB3, and B4 are sequentially arranged along the conveyor belt's transport direction. If the trigger signal's trigger time is less than the single-pack trigger time under normal conveyor belt operation, or if the trigger signal's trigger sequence does not conform to the infrared photoelectric sensor's arrangement order, the trigger signal is filtered.

[0042] S2. Based on the trigger time of the trigger signal, determine the conveying direction and conveying status of the conveyed items; based on the conveying direction and conveying status, obtain the quantity of the conveyed items; the specific steps are as follows:

[0043] S201. Obtain the second departure trigger signal and the third departure trigger signal, and obtain the triggering order of the second departure trigger signal and the third departure trigger signal according to their triggering times.

[0044] In some embodiments, a second occlusion trigger signal and a third occlusion trigger signal are acquired, and the triggering order of the second occlusion trigger signal and the third occlusion trigger signal is acquired based on their triggering times.

[0045] In some embodiments, a second departure trigger signal and a third occlusion trigger signal are acquired, and the triggering order of the second departure trigger signal and the third occlusion trigger signal is acquired based on their triggering times.

[0046] In some embodiments, a second occlusion trigger signal and a third departure trigger signal are acquired, and the triggering order of the second occlusion trigger signal and the third departure trigger signal is acquired based on their triggering times.

[0047] S202. Determine the conveying direction of the conveyed items according to the triggering sequence; if the triggering signal is obtained first from the infrared beam sensor MA2, the conveying direction of the conveyed items is forward (i.e., forward); if the triggering signal is obtained first from the infrared beam sensor MB3, the conveying direction of the conveyed items is reverse (i.e., backward).

[0048] S203. Obtain the second occlusion trigger signal, the third occlusion trigger signal, the first departure trigger signal, and the fourth occlusion trigger signal; obtain the trigger sequence based on the trigger time of the second occlusion trigger signal, the third occlusion trigger signal, the first departure trigger signal, and the fourth occlusion trigger signal; add state information to the forward state queue or the reverse state queue according to the trigger sequence.

[0049] Specifically, when acquiring the second and third occlusion trigger signals, if the trigger time of the second occlusion trigger signal is earlier than that of the third occlusion trigger signal, the forward state queue is cleared and state M is added to the forward state queue; otherwise, the reverse state queue is cleared and state M is added. When acquiring the first occlusion trigger signal, state B is added to the reverse state queue. When acquiring the first departure trigger signal, state A is added to the forward state queue. When acquiring the fourth occlusion trigger signal, state B is added to the forward state queue, and when acquiring the fourth departure trigger signal, state A is added to the reverse state queue. The system acquires the second and third occlusion departure signals. If the second departure trigger signal is earlier than the third departure trigger signal, it counts according to the forward state queue; otherwise, it counts according to the reverse state queue. Among them, state A indicates that the departure signal of infrared beam sensor A1 has been triggered (i.e., the first departure trigger signal), state B indicates that the occlusion signal of infrared beam sensor B4 has been triggered (i.e., the fourth occlusion trigger signal), and state M indicates that the occlusion signals of infrared beam sensors MA2 and MB3 have been triggered (i.e., the second and third occlusion trigger signals).

[0050] S204. Determine the transport status of the transported items according to the triggering sequence; if the second and third obstruction trigger signals are obtained, the first departure trigger signal is obtained first, then the fourth obstruction trigger signal is obtained, and finally the second and third departure trigger signals are obtained, and the status queue is recorded as MAB, then the transport status is single package; if the transport direction is forward, add it to the forward status queue and increment the count by 1; if the transport direction is reverse, add it to the reverse status queue and decrement the count by 1; if the second and third obstruction trigger signals are obtained, the fourth obstruction trigger signal is obtained first, then the first departure trigger signal is obtained, and finally the second and third departure trigger signals are obtained, i.e., the status queue is recorded as MBA, then the transport status is consecutive packages, counted as 2 packages.

[0051] If, after obtaining the second and third occlusion trigger signals, the first departure trigger signal is obtained first, then the fourth occlusion trigger signal is obtained, then the first departure trigger signal is obtained again, and finally the second and third departure trigger signals are obtained, then the state queue records MABA, and the transmission status is changed from single packet to consecutive packets, counted as 2 packets; if, after obtaining the second and third occlusion trigger signals, the fourth occlusion trigger signal is obtained first, then the first departure trigger signal is obtained, then the fourth occlusion trigger signal is obtained again, and finally the second and third departure trigger signals are obtained, then the state queue records MABA, and the transmission status is changed from single packet to consecutive packets, counted as 2 packets; If the record in the queue is MBAB, the delivery status changes from a continuous package to a single package, counted as 2 packages; if after obtaining the second and third occlusion trigger signals, only the first departure trigger signal is obtained, followed by the second and third departure trigger signals, and the record in the status queue is MA, then the delivery status changes from a single package to a continuous package, counted as 1 package; if after obtaining the second and third occlusion trigger signals, only the fourth occlusion trigger signal is obtained, followed by the second and third departure trigger signals, and the record in the status queue is MB, then the delivery status changes from a single package to a continuous package, counted as 1 package.

[0052] Example 2

[0053] This embodiment discloses a counting system for conveyor belt transporting items, including an infrared through-beam sensor A1, an infrared through-beam sensor MA2, an infrared through-beam sensor MB3, an infrared through-beam sensor B4, and a controller. The infrared through-beam sensors A1, MA2, MB3, and B4 are sequentially arranged along the running direction of the conveyor belt, located on both sides of the conveyor belt along its length. The distance between infrared through-beam sensors A1 and MB3 is less than the length of a single item; the distance between infrared through-beam sensors MA2 and B4 is less than the length of a single item; the distance between infrared through-beam sensors A1 and B4 is greater than the length of a single item; and the distance between infrared through-beam sensors MA2 and MB3 is 1 cm. The infrared through-beam sensors A1, MA2, MB3, and B4 are electrically connected to the controller.

[0054] Infrared photoelectric sensor A1, infrared photoelectric sensor MA2, infrared photoelectric sensor MB3 and infrared photoelectric sensor B4 are used to send trigger signals to the controller according to the conveying status of the items being transported by the conveyor belt; the controller is used to execute the steps described in Embodiment 1.

[0055] Example 3

[0056] This embodiment discloses a counting device for conveying exchanged items, comprising:

[0057] The trigger signal acquisition module is configured to: acquire a trigger signal, determine whether the trigger signal is stable within a preset time; if yes, proceed to the next step; if no, reacquire the trigger signal and determine it again.

[0058] The transported item counting module is configured to: determine the transport direction and transport status of the transported items based on the trigger time of the trigger signal; and obtain the quantity of transported items based on the number of triggers, transport direction, and transport status of the trigger signal.

[0059] It should be noted that the trigger signal acquisition module and the transported item counting module mentioned above correspond to the steps in Embodiment 1. The examples and application scenarios implemented by these modules and their corresponding steps are the same, but they are not limited to the content disclosed in Embodiment 1. It should also be noted that these modules, as part of the system, can be executed in a computer system, such as a set of computer-executable instructions.

[0060] Example 4

[0061] Embodiment 3 of the present invention provides an electronic device, including a memory and a processor, as well as computer instructions stored in the memory and running on the processor. When the computer instructions are executed by the processor, they complete the steps of Embodiment 1 described above.

[0062] Example 5

[0063] Embodiment 4 of the present invention provides a computer-readable storage medium for storing computer instructions, which, when executed by a processor, complete the steps of Embodiment 1 described above.

[0064] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0065] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1The function specified in one or more boxes.

[0066] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment, whereby a series of operational steps are performed to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0067] The descriptions of each embodiment in the above embodiments have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0068] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A counting system for items conveyed by a conveyor belt, characterized in that, It includes infrared beam sensor A, infrared beam sensor MA, infrared beam sensor MB, infrared beam sensor B, and a controller; Infrared beam sensor A, infrared beam sensor MA, infrared beam sensor MB, and infrared beam sensor B are sequentially arranged along the running direction of the conveyor belt and located on both sides of the conveyor belt along its length. The distance between infrared beam sensor A and infrared beam sensor MB is less than the length of a single item; the distance between infrared beam sensor MA and infrared beam sensor B is less than the length of a single item; the distance between infrared beam sensor A and infrared beam sensor B is greater than the length of a single item; and the distance between infrared beam sensor MA and infrared beam sensor MB is 0-3cm. The infrared through-beam sensor A, the infrared through-beam sensor MA, the infrared through-beam sensor MB, and the infrared through-beam sensor B are used to send trigger signals to the controller according to the conveying status of the items being transported by the conveyor belt. The controller is used to perform the following steps: S1. Obtain the trigger signal and determine whether the trigger signal is stable within a preset time. If yes, proceed to the next step. If no, re-obtain the trigger signal and determine it. S2. Determine the conveying direction and conveying status of the conveyed items based on the triggering time of the trigger signal; Based on the number of trigger signals, the conveying direction, and the conveying status, the quantity of conveyed items is obtained, including: When acquiring the second and third occlusion trigger signals, if the trigger time of the second occlusion trigger signal is earlier than that of the third occlusion trigger signal, the forward state queue is cleared and state M is added to the forward state queue; otherwise, the reverse state queue is cleared and state M is added. When acquiring the first occlusion trigger signal, state B is added to the reverse state queue. When acquiring the first departure trigger signal, state A is added to the forward state queue. When acquiring the fourth occlusion trigger signal, state B is added to the forward state queue; when acquiring the fourth departure trigger signal, state A is added to the reverse state queue. Take the second and third occlusion departure signals. If the second departure trigger signal is earlier than the third departure trigger signal, count according to the forward state queue; otherwise, count according to the reverse state queue. Among them, state A indicates that the departure signal of infrared beam sensor A1 has been triggered, which is used as the first departure trigger signal; state B indicates that the occlusion signal of infrared beam sensor B4 has been triggered, which is used as the fourth occlusion trigger signal; state M indicates that the occlusion signals of infrared beam sensors MA2 and MB3 have been triggered, which are used as the second and third occlusion trigger signals, respectively. The delivery status of the transported items is determined according to the triggering sequence. Specifically, if the second and third obstruction trigger signals are obtained, followed by the first departure trigger signal, then the fourth obstruction trigger signal, and finally the second and third departure trigger signals, and the status queue is recorded as MAB, then the delivery status is single package. If the delivery direction is forward, the item is added to the forward status queue, and the count is incremented by 1; if the delivery direction is reverse, the item is added to the reverse status queue, and the count is decremented by 1. If the second and third obstruction trigger signals are obtained, followed by the fourth obstruction trigger signal, then the first departure trigger signal, and finally the second and third departure trigger signals, and the status queue is recorded as MBA, then the delivery status is consecutive packages, counted as 2 packages. If, after obtaining the second and third occlusion trigger signals, the first departure trigger signal is obtained first, then the fourth occlusion trigger signal is obtained, then the first departure trigger signal is obtained again, and finally the second and third departure trigger signals are obtained, then the state queue records MABA, and the transmission status is changed from single packet to consecutive packets, counted as 2 packets; if, after obtaining the second and third occlusion trigger signals, the fourth occlusion trigger signal is obtained first, then the first departure trigger signal is obtained, then the fourth occlusion trigger signal is obtained again, and finally the second and third departure trigger signals are obtained, then the state queue records MABA, and the transmission status is changed from single packet to consecutive packets, counted as 2 packets; If the record in the queue is MBAB, the delivery status changes from a continuous package to a single package, counted as 2 packages; if after obtaining the second and third occlusion trigger signals, only the first departure trigger signal is obtained, followed by the second and third departure trigger signals, and the record in the status queue is MA, then the delivery status changes from a single package to a continuous package, counted as 1 package; if after obtaining the second and third occlusion trigger signals, only the fourth occlusion trigger signal is obtained, followed by the second and third departure trigger signals, and the record in the status queue is MB, then the delivery status changes from a single package to a continuous package, counted as 1 package.

2. A counting method for conveyor belt transported items, employing the counting system for conveyor belt transported items as described in claim 1, characterized in that, The counting method includes: S1. Obtain the trigger signal and determine whether the trigger signal is stable within a preset time. If yes, proceed to the next step. If no, re-obtain the trigger signal and determine it. S2. Based on the trigger time of the trigger signal, determine the conveying direction and conveying status of the conveyed items; based on the conveying direction and conveying status, obtain the quantity of the conveyed items, including: When acquiring the second and third occlusion trigger signals, if the trigger time of the second occlusion trigger signal is earlier than that of the third occlusion trigger signal, the forward state queue is cleared and state M is added to the forward state queue; otherwise, the reverse state queue is cleared and state M is added. When acquiring the first occlusion trigger signal, state B is added to the reverse state queue. When acquiring the first departure trigger signal, state A is added to the forward state queue. When acquiring the fourth occlusion trigger signal, state B is added to the forward state queue; when acquiring the fourth departure trigger signal, state A is added to the reverse state queue. Take the second and third occlusion departure signals. If the second departure trigger signal is earlier than the third departure trigger signal, count according to the forward state queue; otherwise, count according to the reverse state queue. Among them, state A indicates that the departure signal of infrared beam sensor A1 has been triggered, which is used as the first departure trigger signal; state B indicates that the occlusion signal of infrared beam sensor B4 has been triggered, which is used as the fourth occlusion trigger signal; state M indicates that the occlusion signals of infrared beam sensors MA2 and MB3 have been triggered, which are used as the second and third occlusion trigger signals, respectively. The delivery status of the transported items is determined according to the triggering sequence. Specifically, if the second and third obstruction trigger signals are obtained, followed by the first departure trigger signal, then the fourth obstruction trigger signal, and finally the second and third departure trigger signals, and the status queue is recorded as MAB, then the delivery status is single package. If the delivery direction is forward, the item is added to the forward status queue, and the count is incremented by 1; if the delivery direction is reverse, the item is added to the reverse status queue, and the count is decremented by 1. If the second and third obstruction trigger signals are obtained, followed by the fourth obstruction trigger signal, then the first departure trigger signal, and finally the second and third departure trigger signals, and the status queue is recorded as MBA, then the delivery status is consecutive packages, counted as 2 packages. If, after obtaining the second and third occlusion trigger signals, the first departure trigger signal is obtained first, then the fourth occlusion trigger signal is obtained, then the first departure trigger signal is obtained again, and finally the second and third departure trigger signals are obtained, then the state queue records MABA, and the transmission status is changed from single packet to consecutive packets, counted as 2 packets; if, after obtaining the second and third occlusion trigger signals, the fourth occlusion trigger signal is obtained first, then the first departure trigger signal is obtained, then the fourth occlusion trigger signal is obtained again, and finally the second and third departure trigger signals are obtained, then the state queue records MABA, and the transmission status is changed from single packet to consecutive packets, counted as 2 packets; If the record in the queue is MBAB, the delivery status changes from a continuous package to a single package, counted as 2 packages; if after obtaining the second and third occlusion trigger signals, only the first departure trigger signal is obtained, followed by the second and third departure trigger signals, and the record in the status queue is MA, then the delivery status changes from a single package to a continuous package, counted as 1 package; if after obtaining the second and third occlusion trigger signals, only the fourth occlusion trigger signal is obtained, followed by the second and third departure trigger signals, and the record in the status queue is MB, then the delivery status changes from a single package to a continuous package, counted as 1 package.

3. The counting method for conveyor belt transported items as described in claim 2, characterized in that, The trigger signals include a first occlusion trigger signal, a first departure trigger signal, a second occlusion trigger signal, a second departure trigger signal, a third occlusion trigger signal, a third departure trigger signal, a fourth occlusion trigger signal, and a fourth departure trigger signal; Wherein, the first occlusion trigger signal and the first departure trigger signal are emitted by infrared beam sensor A, the second departure trigger signal and the second occlusion trigger signal are emitted by infrared beam sensor MA, the third occlusion trigger signal and the third departure trigger signal are emitted by infrared beam sensor MB, and the fourth occlusion trigger signal and the fourth departure trigger signal are emitted by infrared beam sensor B. The infrared photoelectric sensor A, infrared photoelectric sensor MA, infrared photoelectric sensor MB, and infrared photoelectric sensor B are arranged sequentially along the conveyor belt conveying direction.

4. The counting method for conveyor belt transported items as described in claim 3, characterized in that, Determining the conveying direction of the transported items based on the triggering time of the trigger signal includes: Obtain the second departure trigger signal and the third departure trigger signal, and obtain the triggering order of the second departure trigger signal and the third departure trigger signal based on their triggering times; Determine the delivery direction of the items based on the trigger sequence; or, Determining the conveying direction of the transported items based on the triggering time of the trigger signal includes: Obtain the second occlusion trigger signal and the third occlusion trigger signal, and obtain the triggering order of the second occlusion trigger signal and the third occlusion trigger signal according to their triggering times; Determine the direction of transport for the items based on the trigger sequence.

5. The counting method for conveyor belt transported items as described in claim 2, characterized in that, The delivery status of the transported items is determined based on the triggering time of the trigger signal, including: Acquire the second occlusion trigger signal, the third occlusion trigger signal, the first departure trigger signal, and the fourth occlusion trigger signal; and obtain the trigger sequence based on the trigger times of the second occlusion trigger signal, the third occlusion trigger signal, the first departure trigger signal, and the fourth occlusion trigger signal. Determine the delivery status of the items based on the trigger sequence; Furthermore, if the first departure trigger signal is obtained before the fourth occlusion trigger signal is obtained after the second and third occlusion trigger signals are obtained, the transmission status is single packet; if the fourth occlusion trigger signal is obtained before the first departure trigger signal is obtained after the second and third occlusion trigger signals are obtained, the transmission status is continuous packet.

6. The counting method for conveyor belt transported items as described in claim 2, characterized in that, If the transmission direction is positive, the count is incremented by 1; if the transmission direction is positive, the count is decremented by 1. or, If the trigger signal's trigger time is less than the single-pack trigger time under normal conveyor belt operation, or if the trigger signal's trigger sequence does not conform to the infrared photoelectric sensor's setting sequence, then the trigger signal will be filtered.

7. A counting device for conveyor belt transported items, employing the counting system for conveyor belt transported items as described in claim 1, characterized in that, include: The trigger signal acquisition module is configured to: acquire a trigger signal, determine whether the trigger signal is stable within a preset time; if yes, proceed to the next step; if no, reacquire the trigger signal and determine it again. The transported item counting module is configured to: determine the transport direction and transport status of the transported items based on the trigger time of the trigger signal; and obtain the quantity of transported items based on the number of triggers, transport direction, and transport status of the trigger signal.

8. An electronic device, characterized in that, It includes a memory and a processor, as well as computer instructions stored in the memory and running on the processor, which, when executed by the processor, perform the steps described in any one of claims 2-6.

9. A computer-readable storage medium, characterized in that, Used to store computer instructions, which, when executed by a processor, perform the steps described in any one of claims 2-6.

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