System and method for adjusting interval of continuously conveyed articles

Abstract

The invention discloses a system and method for adjusting the interval of continuously conveyed articles. The system comprises two sections of continuously connected conveying devices with a speed difference; the triggering devices are arranged on the conveying devices respectively, each triggering device is used for recording accumulated triggering statistical information during triggering, and the interval between the two triggering devices is configured to be a set distance; and the operation control device is used for actively adjusting the actual interval to convey the adjacent conveyed articles according to the set interval when the actual interval between the adjacent conveyed articles is diagnosed not to reach the set distance according to the accumulated trigger statistical information and the working state of each trigger device. According to the invention, the manual operation intervention degree of field staff on the continuous conveying article interval adjustment action can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of object transmission detection, and in particular to a system and method for adjusting the interval of continuously conveying objects. Background Art

[0002] Article conveying mechanisms are mainly used to convey articles that need to be transported continuously.

[0003] Although the object transmission mechanism has brought a lot of convenience to our lives, it is difficult to realize the problem of automated equal-interval transmission of objects in scenarios where continuous transmission of objects is required. For example, in order to improve the working efficiency and accuracy of the security scanner or sorting system, it is necessary to provide the input end of the security scanner or sorting system with equally-interval transmitted objects to be inspected. However, in actual application, due to the lack of effective recognition and active adjustment mechanism for the actual intervals between adjacent objects during equal-interval transmission, in order to achieve the effect of equal intervals as much as possible during the continuous object transmission process, manual intervention of on-site staff is required, which increases the working hours of the staff and affects their work efficiency.

[0004] Therefore, the prior art needs to provide an intelligent control solution that can actively adjust the actual interval of continuously conveyed objects, so as to achieve the purpose of equal-interval transmission of continuous objects, reduce the involvement of human factors, and indirectly improve the working accuracy of the back-end mechanism. Summary of the invention

[0005] The purpose of the present invention is to propose an intelligent control scheme that can actively adjust the actual interval of continuously conveyed objects, so as to achieve the purpose of equal-interval transmission of continuous objects, reduce the involvement of human factors, and indirectly improve the working accuracy of the back-end mechanism.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides a system for adjusting the interval between continuously conveyed objects, comprising: two consecutively connected conveying devices with a speed difference; trigger devices respectively arranged on the conveying devices, each trigger device being used to record cumulative trigger statistical information when triggered, wherein the interval between the two trigger devices is constructed as a set distance; an operation control device, which is used to actively adjust the actual interval based on the cumulative trigger statistical information and working status of each trigger device, when it is diagnosed that the actual interval between adjacent conveyed objects does not reach the set distance, so that the adjacent conveyed objects are conveyed according to the set interval.

[0007] Preferably, the operation control device is configured to carry out timing interval adjustment according to the following step flow: based on the trigger statistical information and working status of the two trigger devices, determine whether there is a first target object located between the two trigger devices in front of the object that triggers the first trigger device when the first trigger device is triggered, and determine whether there is a second target object located between the two trigger devices behind the object that releases the second trigger device when the second trigger device is released; when the presence of the first target object or the second target object is detected, the actual interval between adjacent conveyed objects is adjusted by controlling the stopping and starting of the conveying device located upstream so that the adjusted interval reaches the set distance.

[0008] Preferably, the step of determining whether the first target item or the second target item exists includes: determining whether the first target item or the second target item exists based on the working status of each trigger device and the difference between the accumulated trigger statistical information of the two trigger devices, wherein the working status includes a triggered state, an untriggered state and a released state.

[0009] Preferably, the first conveying device is located upstream of the second conveying device, wherein a conveying speed of the first conveying device is lower than a conveying speed of the second conveying device, and the first trigger device is arranged at the end of the first conveying device.

[0010] Preferably, when it is detected that both the first trigger device and the second trigger device are in the triggered state, or when the first trigger device is in the triggered state and the difference between the second trigger statistical information recorded by the second trigger device and the first trigger statistical information recorded by the first trigger device does not satisfy that the actual conveying interval is the set distance, it is determined that the first target item currently exists; a stop command is sent to the first conveying device; and when it is detected that the second trigger device is in the released state, and the difference between the second trigger statistical information recorded by the second trigger device and the first trigger statistical information recorded by the first trigger device satisfies that the actual conveying interval is the set distance, an operation command is sent to the first conveying device.

[0011] Preferably, when it is detected that the second trigger device is in a released state and the first trigger device is in a triggered state, it is determined that the second target object currently exists; a stop command is sent to the first conveying device; and when the stop time of the first conveying device reaches a preset time value, an operation command is sent to the first conveying device, wherein the preset time value is the ratio of the set distance to the conveying speed of the second conveying device.

[0012] Preferably, when it is detected that the first trigger device is in a triggered state and the second trigger device is in an untriggered state, and the difference between the second trigger statistical information recorded by the second trigger device and the first trigger statistical information recorded by the first trigger device satisfies that the actual conveying interval is the set distance, it is determined that the first target item does not currently exist.

[0013] Preferably, when it is detected that the first trigger device is in an untriggered state and the second trigger device is in a released state, it is determined that the second target object does not currently exist.

[0014] Preferably, the accumulated trigger statistical information is selected from one of the number of triggers, the trigger time and other reasonable parameter items, and each trigger device includes a sensing element and a counter, wherein the sensing element is selected from one of a position sensor, a gravity sensor and a photoelectric sensor.

[0015] On the other hand, an embodiment of the present invention provides a method for adjusting the interval between continuously conveyed objects, and the method is implemented using the system as described above, wherein the method includes: respectively setting corresponding trigger devices on two consecutively connected conveying devices with a speed difference, wherein each trigger device is used to record cumulative trigger statistical information when triggered, and the interval between the two trigger devices is constructed as a set distance; based on the cumulative trigger statistical information and working status of the two trigger devices, when it is diagnosed that the actual interval between adjacent conveyed objects does not reach the set distance, the actual interval is actively adjusted so that the adjacent conveyed objects are conveyed according to the set interval.

[0016] Compared with the prior art, one or more embodiments of the above scheme may have the following advantages or beneficial effects: The present invention proposes a system and method for adjusting the interval of continuously conveyed objects. The system and method respectively set corresponding trigger devices on two consecutively connected conveying devices with a speed difference to record the arrival of adjacent objects, and use a pre-built adjacent conveyed object diagnosis and interval adjustment linkage response mechanism to achieve the purpose of continuous equal-interval transmission of objects. The present invention can reduce the degree of manual intervention of on-site staff in the adjustment of the interval of continuously conveyed objects, and improve the working accuracy and efficiency of the back-end system.

[0017] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation of the present invention.

[0019] Figure 1 This is a schematic diagram of the overall structure of a system for adjusting the interval between continuously conveying objects according to an embodiment of the present application.

[0020] Figure 2 This is a schematic diagram of a diagnostic flow in a system for adjusting the interval between continuous conveying of objects according to an embodiment of the present application.

[0021] Figure 3 Schematic diagram of the steps of a method for adjusting the interval between continuously conveying objects according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. It should be noted that as long as there is no conflict, the various embodiments of the present invention and the various features in the embodiments can be combined with each other, and the technical solutions formed are all within the protection scope of the present invention.

[0023] In addition, the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions. Also, although a logical sequence is shown in the flowchart, in some cases, the steps shown or described can be performed in a sequence different from that here.

[0024] The terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments. Unless the context clearly indicates otherwise, the singular forms "one", "one" and "item" used herein are also intended to include plural numbers. It should also be understood that the terms "include" and / or "comprise" used herein specify the existence of stated features, integers, steps, operations, units and / or components, without excluding the existence or addition of one or more other features, integers, steps, operations, units, components and / or combinations thereof.

[0025] In order to solve the technical problems in the above-mentioned background technology, the embodiments of the present application propose a system and method for adjusting the interval of continuously conveyed objects. The system and method respectively set corresponding trigger devices on two consecutively connected conveying devices with speed difference to record the arrival of adjacent objects, and use the pre-built adjacent conveying object diagnosis and interval adjustment linkage response mechanism to achieve the purpose of continuous equal-interval transmission of objects.

[0026] Figure 1Schematic diagram of the overall structure of the system for adjusting the interval of continuously conveying objects according to the embodiment of the present application. Figure 1 As shown, the system for adjusting the interval of continuously conveyed objects (also called "equal interval conveying adjustment system") provided by the embodiment of the present invention mainly includes: two consecutively connected conveying devices, two triggering devices and an operation control device.

[0027] The two-stage conveyor is a conveyor that is connected in two stages with a speed difference. The conveyors of two adjacent stages are connected in a series, and the conveying speeds of the two adjacent stages are different. In the embodiment of the present invention, the conveyor located upstream can be recorded as the first conveyor, and the second conveyor is located downstream of the first conveyor.

[0028] The trigger device is respectively arranged on each transmission device. Each trigger device is used to record its own cumulative (triggered) statistical information when triggered. In a preferred embodiment, the trigger statistical information can be selected from one of the triggering times, triggering time and other reasonable parameter items. Among them, the interval between two adjacent trigger devices is constructed as a set distance. The installation interval between the first trigger device on the first transmission device and the second trigger device on the second transmission device is constructed as a set distance. Among them, the cumulative statistical information of the first trigger device itself being triggered is recorded as the first trigger statistical information; the cumulative statistical information of the second trigger device itself being triggered is recorded as the second trigger statistical information.

[0029] In addition, in the actual application process, the trigger device will output the corresponding working state according to the actual situation of the object passing through itself. In the embodiment of the present invention, the working state of the trigger device includes a triggered state, an untriggered state and a released state. The triggered state is that when the front edge of an object reaches the position of the trigger device and passes through the position, the sensing element of the trigger device is triggered, thereby generating a state in the form of, for example, a low potential electrical signal (or 0 signal) is transformed into a high potential electrical signal (or 1 signal) and maintaining the high potential electrical signal (or 1 signal). The untriggered state is that no object passes through the position of the trigger device, so that the sensing element of the trigger device is not triggered, thereby generating a state in the form of, for example, a low potential electrical signal (or 0 signal) and maintaining the low potential electrical signal (or 0 signal). The released state is that the end edge of an object passes through the position of the trigger device, so that the trigger state of the sensing element of the trigger device is instantly released, thereby generating a state in the form of, for example, a high potential electrical signal (or 1 signal) is transformed into a low potential electrical signal (or 0 signal).

[0030] Furthermore, the operation control device is connected to each trigger device. The operation control device is used to actively adjust the actual interval to make adjacent conveyed objects be conveyed at equal intervals according to the set intervals when it is diagnosed that the actual interval between adjacent conveyed objects does not reach the set distance based on the (accumulated) trigger statistical information and working status of each trigger device. In an embodiment of the present invention, the operation control device is implemented by one of the devices selected from computers, processors, programmable logic devices, PLC controllers, etc.

[0031] A series of continuously transported articles enter from the first conveyor, pass through the first conveyor and the second conveyor, and are sent to the subsequent system (for example, security inspection device or sorting system, etc.). The first conveyor and the second conveyor separate the continuous articles. The present invention can make the distance between adjacent articles maintain a set distance d. The first conveyor has a set running speed v1, and the second conveyor has a set speed v2.

[0032] More specifically, the first trigger device is arranged at the end of the first conveying device, and the second trigger device is arranged at a distance d behind the first trigger device and is located on the second conveying device. When the continuous objects pass through the first and second conveying devices, due to their speed difference, they will be separated by a certain gap, and the first and second trigger devices detect the gap and conditionally control the first conveying device to stop so that the gap reaches the set interval.

[0033] It should be noted that the equal spacing adjustment system described in the embodiment of the present invention can control the equal spacing transmission of at least two sections of continuous conveying devices with speed difference. More specifically, as long as the equal spacing adjustment system described in the embodiment of the present invention realizes the equal spacing transmission control of any two adjacent sections of the at least two sections of continuous conveying devices, the at least two sections of continuous conveying devices can be regulated to transmit articles at equal intervals.

[0034] In one embodiment, during the process of conveying a plurality of consecutive articles, the operation control device is configured to perform timing interval adjustment according to the following steps: Step S1, judging whether there is a first target object located between the two triggering devices in front of the object that triggers the first triggering device when the first triggering device is triggered, based on the (accumulated) triggering statistical information and working status of the two triggering devices, and judging whether there is a second target object located between the two triggering devices behind the object that releases the second triggering device when the second triggering device is released; Step S2, when the first target object or the second target object is detected, the actual interval between two adjacent conveyed objects is adjusted by controlling the stopping and starting actions of the conveying device located upstream, so that the adjusted interval reaches the set distance.

[0035] Further, in step S1, the operation control device determines whether there is a first target object in front of the triggered trigger device or a second target object behind the released trigger device when at least one of the two trigger devices is triggered based on the working status of each trigger device and the difference in the accumulated trigger statistical information of the two trigger devices.

[0036] In one embodiment, the first conveying device is located upstream of the second conveying device, wherein the conveying speed of the first conveying device is lower than the conveying speed of the second conveying device, that is, v1<v2.

[0037] In one embodiment, each trigger device includes a sensing element and a counter, wherein the sensing element is selected from a position sensor, a gravity sensor, a photoelectric sensor, and other sensors that reasonably sense the arrival of an object.

[0038] like Figure 2 As shown, in step S1, if the operation control device detects that the first trigger device is currently in a triggered state, and the second trigger device is in an untriggered state, and the difference between the second trigger statistical information currently recorded by the second trigger device and the first trigger statistical information recorded by the first trigger device does not satisfy the actual interval conveying length between the currently triggered object and the object in front of it being the set distance, it is determined that the first target object does not currently exist, indicating that there is no object between the two trigger devices in front of (i.e., downstream of) the object currently triggering the first trigger device, that is, all objects before the current object have passed through the second trigger device. At this time, the object currently triggering the first trigger device can continue to be conveyed forward.

[0039] refer to Figure 2 In step S1, if the operation control device detects that the first trigger device and the second trigger device are both in the trigger state, or if the operation control device detects that the first trigger device is in the trigger state, and the difference between the second trigger statistical information recorded by the second trigger device and the first trigger statistical information recorded by the first trigger device does not satisfy the actual interval conveying length between the currently triggered item and the item in front of it is the set distance, it is determined that the first target item currently exists. At this time, in step S2, the operation control device will first send a stop command to the first conveying device, and the second conveying device will continue to operate. When the operation control device detects that the second trigger device is in the release state, and the difference between the second trigger statistical information recorded by the second trigger device and the first trigger statistical information recorded by the first trigger device satisfies the actual conveying interval as the set distance, the operation control device sends an operation command to the first conveying device, indicating that the gap between the two adjacent items has reached the set distance d. At this time, the operation control device sends an operation command to the first conveying device to continue to convey the items forward.

[0040] In step S1, if the operation control device detects that the first trigger device is currently in an untriggered state and the second trigger device is in a released state, it is determined that the second target object does not exist at present. When the second trigger device is released, it means that the end of an object just passes the position of the second trigger device. If the first trigger device is in an untriggered state at this time, it means that there is no object between the two trigger devices behind (i.e., upstream) the object that currently triggers the second trigger device, that is, all objects after the current object have not passed the first trigger device. At this time, the object that currently triggers the second trigger device can continue to be transmitted forward.

[0041] Continue to refer Figure 2 In step S1, if the operation control device detects that the second trigger device is in the released state and the first trigger device is in the triggered state, it is determined that the first target object currently exists. At this time, in step S2, the operation control device will first send a stop command to the first conveying device, and the second conveying device will continue to operate. When the operation control device detects that the downtime of the first conveying device reaches the preset time value, the operation control device sends an operation command to the first conveying device. Among them, the above preset time value is the ratio of the set distance d to the conveying speed v2 of the second conveying device. When the second trigger device is released, it means that the end of a certain object just passes the position of the second trigger device. If the first trigger device is in the triggered state at this time, it means that there is an object between the two trigger devices behind (i.e. upstream) the object currently passing through the second trigger device, and the distance between the two objects does not reach the set distance d. At this time, the operation control device sends a stop command to the first conveying device to stop it from operating; after the d / v2 time, the operation control device sends an operation command to the first conveying device, which will cause the object that triggers the first trigger device to continue to be conveyed forward.

[0042] In actual application, the accumulated trigger times information may be used as the accumulated trigger statistics information.

[0043] When an object reaches the first trigger device, causing the first trigger device to be triggered, the counter in the first trigger device will record the trigger count s1=s1+1 of the first trigger device, thereby transmitting the updated first trigger count parameter to the operation control device. When an object reaches the second trigger device and triggers the second trigger device, causing the second trigger device to be triggered, the counter in the second trigger device will record the trigger count s2=s2+1 of the second trigger device, thereby transmitting the updated second trigger count parameter to the operation control device.

[0044] In the first embodiment, in step S1, if the operation control device detects that the first trigger device is currently in a triggered state, and the second trigger device is in an untriggered state, and the difference between the second trigger number recorded by the second trigger device and the first trigger number recorded by the first trigger device is 1, it is determined that the first target item does not exist at present. When the first trigger device is triggered, it means that the front end of an item has just reached the position of the first trigger device. If the second trigger device is in an untriggered state at this time, and s1=s2-1, it means that there is no item between the two trigger devices in front of the item that currently triggers the first trigger device (i.e., downstream), that is, all items before the current item have passed through the second trigger device. At this time, the item that currently triggers the first trigger device can continue to be transmitted forward.

[0045] In the second embodiment, reference Figure 2 In step S1, if the operation control device detects that both the first trigger device and the second trigger device are in the trigger state, or if the operation control device detects that the first trigger device is in the trigger state, and the difference between the second trigger number recorded by the second trigger device and the first trigger number recorded by the first trigger device is not 1, it is determined that the first target item currently exists. At this time, in step S2, the operation control device will first send a stop command to the first conveying device, and the second conveying device will continue to operate. When the operation control device detects that the second trigger device is in the released state, and the difference between the second trigger number recorded by the second trigger device and the first trigger number recorded by the first trigger device is 1, the operation control device sends a running command to the first conveying device. When the first trigger device is triggered, if the second trigger device is in the trigger state at this time, or s1≠s2-1, it means that there is an object between the two trigger devices in front of (i.e., downstream) of the object currently triggering the first trigger device, and the distance between the two adjacent objects does not reach the set distance d. At this time, the operation control device sends a stop command to the first conveying device to stop it; the second conveying device continues to operate until the operation control device detects that the second trigger device is in the released state, and s1=s2-1. At this time, it means that the gap between the two adjacent objects has reached the set distance d. At this time, the operation control device sends an operation command to the first conveying device to continue to convey the objects forward.

[0046] In the third embodiment, in step S1, if the operation control device detects that the first trigger device is currently in an untriggered state and the second trigger device is in a released state, it is determined that the second target object does not exist at present. When the second trigger device is released, it means that the end of an object just passes the position of the second trigger device. If the first trigger device is in an untriggered state at this time, it means that there is no object between the two trigger devices behind (i.e., upstream) the object that currently triggers the second trigger device, that is, all objects after the current object have not passed the first trigger device. At this time, the object that currently triggers the second trigger device can continue to be transmitted forward.

[0047] In the fourth embodiment, continue to refer to Figure 2 In step S1, if the operation control device detects that the second trigger device is in the released state and the first trigger device is in the triggered state, it is determined that the first target object currently exists. At this time, in step S2, the operation control device will first send a stop command to the first conveying device, and the second conveying device will continue to operate. When the operation control device detects that the downtime of the first conveying device reaches the preset time value, the operation control device sends an operation command to the first conveying device. Among them, the above preset time value is the ratio of the set distance d to the conveying speed v2 of the second conveying device. When the second trigger device is released, it means that the end of a certain object just passes the position of the second trigger device. If the first trigger device is in the triggered state at this time, it means that there is an object between the two trigger devices behind (i.e. upstream) the object currently passing through the second trigger device, and the distance between the two objects does not reach the set distance d. At this time, the operation control device sends a stop command to the first conveying device to stop it from operating; after the d / v2 time, the operation control device sends an operation command to the first conveying device, which will cause the object that triggers the first trigger device to continue to be conveyed forward.

[0048] On the other hand, based on the above-mentioned equal-interval conveying adjustment system, an embodiment of the present invention further provides a method for adjusting the interval of continuously conveyed objects (also called "equal-interval conveying adjustment method"). The equal-interval conveying adjustment method is implemented using the above-mentioned equal-interval conveying adjustment system.

[0049] Figure 3 Schematic diagram of the steps of the method for adjusting the interval of continuously conveying objects according to an embodiment of the present application. Figure 3 As shown, the equal-interval conveying adjustment method described in the embodiment of the present invention includes the following steps: Step S301, respectively setting corresponding trigger devices on two sections of transmission devices connected in series with a speed difference, wherein each trigger device is used to record accumulated trigger statistical information when triggered, and the interval between the two trigger devices is configured to be a set distance; Step S302, based on the accumulated triggering statistics and working status of the two triggering devices, when it is diagnosed that the actual interval between adjacent conveyed objects does not reach the set distance, the actual interval is actively adjusted so that the adjacent conveyed objects are conveyed according to the set interval.

[0050] The present invention discloses a system and method for adjusting the interval of continuously conveyed objects. The system and method respectively set corresponding trigger devices on two consecutively connected conveying devices with a speed difference to record the arrival of adjacent objects, and use a pre-built adjacent conveyed object diagnosis and interval adjustment linkage response mechanism to achieve the purpose of continuous equal-interval transmission of objects. The present invention can reduce the degree of manual intervention of on-site staff in the action of adjusting the interval of continuously conveyed objects, and improve the working accuracy and working efficiency of the back-end system.

[0051] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any person familiar with the technology within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

[0052] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0053] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] It should be understood that the embodiments disclosed in the present invention are not limited to the specific structures, processing steps or materials disclosed herein, but should be extended to equivalent substitutions of these features understood by ordinary technicians in the relevant field. It should also be understood that the terms used herein are only used for the purpose of describing specific embodiments and are not meant to be limiting.

[0055] The "one embodiment" or "embodiment" mentioned in the specification means that the specific features, structures or characteristics described in conjunction with the embodiment are included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment" or "embodiment" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0056] Although the embodiments disclosed in the present invention are as above, the contents described are only embodiments adopted for facilitating the understanding of the present invention and are not intended to limit the present invention. Any technician in the technical field to which the present invention belongs can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in the present invention, but the patent protection scope of the present invention shall still be subject to the scope defined in the attached claims.

Claims

1. A system for adjusting the interval between continuously conveyed items, characterized in that: include: A conveying device that forms two consecutive sections with a speed difference; Trigger devices are respectively arranged on the conveying device, each trigger device is used to record the accumulated trigger statistical information when triggered, wherein the interval between the two trigger devices is configured as a set distance; The operation control device is used to actively adjust the actual interval so that the adjacent conveyed objects are conveyed according to the set interval when it is diagnosed that the actual interval between adjacent conveyed objects does not reach the set distance based on the accumulated trigger statistical information and working status of each trigger device.

2. The system according to claim 1, characterized in that The operation control device is configured to perform timing interval adjustment according to the following steps: According to the triggering statistical information and working status of the two triggering devices, it is determined whether there is a first target object located between the two triggering devices in front of the object that triggers the first triggering device when the first triggering device is triggered, and it is determined whether there is a second target object located between the two triggering devices behind the object that releases the second triggering device when the second triggering device is released; When the presence of the first target object or the second target object is detected, the actual interval between adjacent conveyed objects is adjusted by controlling the stop and start of the conveying device located upstream so that the adjusted interval reaches the set distance.

3. The system according to claim 2, characterized in that The step of determining whether the first target object or the second target object exists includes: According to the working state of each trigger device and the difference of the accumulated trigger statistical information of the two trigger devices, it is determined whether the first target item or the second target item exists, wherein the working state includes a triggered state, an untriggered state and a released state.

4. The system according to claim 3, characterized in that The first conveying device is located upstream of the second conveying device, wherein a conveying speed of the first conveying device is lower than a conveying speed of the second conveying device, and the first trigger device is arranged at the end of the first conveying device.

5. The system according to claim 4, characterized in that When it is detected that both the first trigger device and the second trigger device are in the triggered state, or when the first trigger device is in the triggered state and the difference between the second trigger statistical information recorded by the second trigger device and the first trigger statistical information recorded by the first trigger device does not satisfy that the actual conveying interval is the set distance, it is determined that the first target object currently exists; sending a stop instruction to the first conveying device; When it is detected that the second trigger device is in a released state and the difference between the second trigger statistical information recorded by the second trigger device and the first trigger statistical information recorded by the first trigger device satisfies that the actual conveying interval is the set distance, an operation instruction is sent to the first conveying device.

6. The system according to claim 4 or 5, characterized in that: When it is detected that the second trigger device is in a released state and the first trigger device is in a triggered state, determining that the second target object currently exists; sending a stop instruction to the first conveying device; When the downtime of the first conveying device reaches a preset time value, an operation instruction is sent to the first conveying device, wherein the preset time value is a ratio of a set distance to a conveying speed of the second conveying device.

7. The system according to claim 4 or 5, characterized in that: When it is detected that the first trigger device is in a triggered state and the second trigger device is in an untriggered state, and the difference between the second trigger statistical information recorded by the second trigger device and the first trigger statistical information recorded by the first trigger device satisfies that the actual conveying interval is the set distance, it is determined that the first target object does not currently exist.

8. The system according to claim 4 or 5, characterized in that: When it is detected that the first trigger device is in an untriggered state and the second trigger device is in a released state, it is determined that the second target object does not currently exist.

9. The system according to any one of claims 1 to 5, characterized in that: The accumulated trigger statistical information is selected from one of the trigger times, trigger time and other reasonable parameter items, and each trigger device includes a sensing element and a counter, wherein the sensing element is selected from one of a position sensor, a gravity sensor and a photoelectric sensor.

10. A method for adjusting the interval between continuously conveying objects, characterized in that: The method is implemented using the system according to any one of claims 1 to 9, wherein the method comprises: Corresponding trigger devices are respectively arranged on two sections of transmission devices connected in succession with a speed difference, wherein each trigger device is used to record accumulated trigger statistical information when triggered, and the interval between the two trigger devices is configured as a set distance; According to the accumulated triggering statistics and working status of the two triggering devices, when it is diagnosed that the actual interval between adjacent conveyed objects does not reach the set distance, the actual interval is actively adjusted so that the adjacent conveyed objects are conveyed according to the set interval.

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