Timing-linked control system for screen changer flow channel switching and sealing engagement actions

Abstract

This invention discloses a timing-linked control system for the flow channel switching and sealing engagement actions of a screen switcher, relating to the field of industrial automation control technology. It includes a rhythm construction module, a multi-scale decomposition module, a dominant rhythm generation module, an action timing mapping module, and a dynamic correction control module. The rhythm construction module collects process change information during the continuous operation of the screen switcher, constructs a rhythm change sequence according to a unified time order, and divides the rhythm change sequence into segments based on the rate of change, obtaining slow-change segments and fast-fluctuation segments, forming a time reference result. This invention separates multi-scale changes and reconstructs the rhythm change sequence, enabling the control process to make judgments based on a continuous evolution path, reducing the interference of short-term fluctuations on time node identification, and minimizing action timing deviations. Simultaneously, the dominant rhythm sequence enables action timing mapping and dynamic adjustment, ensuring coordinated and stable progress and connection between the flow channel switching and sealing engagement processes.

Description

Technical Field

[0001] This invention relates to the field of industrial automation control technology, specifically to a timing linkage control system for the switching of flow channels and sealing engagement of a screen changer. Background Technology

[0002] The timing-linked control system for the flow channel switching and sealing engagement of a screen changer refers to a comprehensive control mechanism that, during continuous plastic extrusion production, coordinates and schedules the sequence, duration, and interconnections of various actions related to the switching of the internal melt channels and the sealing engagement process of the screen changer. This ensures that while the flow channel transitions from the old filtration path to the new filtration path, the sealing surface gradually engages and achieves stable closure under high-temperature and high-pressure melt conditions. This maintains continuous melt flow, controlled pressure changes, and eliminates leakage risks throughout the switching process. The system typically relies on the synchronous perception of changes in flow channel switching position, sealing contact state, and pressure response. It constrains and coordinates the switching and engagement actions at key time points, ensuring a strict correspondence between the two over time. This avoids issues such as instantaneous opening, sealing lag, or pressure fluctuations that may occur with traditional independent control methods, thus achieving smooth switching and reliable sealing of the screen changer without shutting down the machine.

[0003] The existing technology has the following shortcomings:

[0004] In existing technologies, during continuous operation, the system state of a screen switch typically exhibits both low-frequency gradual changes and high-frequency disturbances. The low-frequency gradual changes reflect the overall evolution of the operating conditions, while the high-frequency disturbances originate from transient fluctuations and local instability factors. When these two types of changes superimpose in the same time series, multi-scale aliasing can easily occur, making it difficult for the control system to distinguish between the true trend and short-term fluctuations, thus leading to state judgment errors. Under these circumstances, the timing of critical actions is prone to identification deviations, resulting in premature or delayed action execution, affecting the coordination of the flow channel switching process and the sealing process, and in severe cases, even causing process instability.

[0005] The information disclosed in the background section is only intended to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a timing linkage control system for the flow channel switching and sealing engagement actions of a screen changer, so as to solve the problems in the background art mentioned above.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a timing linkage control system for the flow channel switching and sealing engagement actions of a screen changer, comprising a rhythm construction module, a multi-scale decomposition module, a dominant rhythm generation module, an action timing mapping module, and a dynamic correction control module:

[0008] The rhythm construction module collects process change information during the continuous operation of the network switcher, constructs a rhythm change sequence according to a unified time sequence, and divides the rhythm change sequence into segments based on the rate of change to obtain slow change segments and fast fluctuation segments, thus forming a time reference result.

[0009] The multi-scale decomposition module, under the constraint of time reference results, performs backtracking processing on the changes before and after the corresponding time position of the rhythm change sequence, unfolds the slow change segment in time sequence to form a trend change sequence, and at the same time, splits the fast fluctuation segment into segments to form a disturbance change sequence.

[0010] The dominant rhythm generation module reconstructs the rhythm change sequence based on the trend change sequence, rearranges the key change positions according to the change direction of the trend change sequence, and performs delayed marking on the high-frequency fluctuation positions corresponding to the disturbance change sequence to obtain the dominant rhythm sequence.

[0011] The action timing mapping module maps the advancement process of the screen changer flow channel switching action and sealing and clamping action based on the dominant rhythm sequence, and re-corresponds the occurrence sequence and duration of each key action to the dominant rhythm sequence, forming a timing arrangement result that changes with the dominant rhythm.

[0012] The dynamic correction control module executes the screen changer flow channel switching action and sealing and clamping action according to the timing arrangement result, and continuously updates the rhythm change sequence during the execution process. When the dominant rhythm sequence deviates, the timing of subsequent actions is adjusted synchronously according to the time reference result to maintain the consistency of key time nodes.

[0013] Preferably, the steps for forming the time reference result are as follows:

[0014] The process change information during continuous operation is acquired and recorded sequentially at the corresponding unique time position, forming a record sequence that unfolds continuously in time.

[0015] Organize the records around the changing relationships between adjacent time positions in the sequence, and transform the sequence into a rhythmic change sequence arranged in chronological order;

[0016] Based on the progressive state of change between adjacent time positions in the rhythm change sequence, segment by segment is identified, and segments with continuous progressive change are identified as slow change segments, while segments with repeated switching of change direction are identified as fast fluctuation segments.

[0017] Based on the starting and ending positions of the slow-changing and fast-fluctuating segments in the rhythm change sequence, the time positions are sequentially marked, and a correspondence is established between each time position and the corresponding segment category to form a time reference result.

[0018] Preferably, the formation process of the trend change sequence and the disturbance change sequence is as follows:

[0019] Based on the time reference results, the time positions in the rhythm change sequence are reviewed back and forth, and the continuous change path is unfolded along the time sequence to form a continuous change chain that includes the preceding and subsequent positions.

[0020] Around the time positions marked as slow change segments in the continuous change chain, the changes within each slow change segment are unfolded segment by segment in chronological order, and then arranged sequentially according to the segment order to form a trend change sequence.

[0021] For the time positions marked as rapid fluctuation segments in the time reference results, the change content is extracted segment by segment according to the start and end positions of the segment, and the rapid fluctuation segments are arranged in the order of occurrence to form a disturbance change sequence.

[0022] Based on the time reference results, the trend change sequence and the disturbance change sequence are respectively mapped to the time position in the rhythm change sequence, and the time order is kept consistent to form a unified correspondence.

[0023] Preferably, during the formation of the trend change sequence, the slow change segments are continuously unfolded in chronological order and arranged in a segment succession; during the formation of the disturbance change sequence, the fast fluctuation segments are extracted segment by segment according to the segment boundaries and arranged in the original chronological order; the trend change sequence and the disturbance change sequence are respectively mapped to the time positions in the rhythm change sequence and maintain the same order.

[0024] Preferably, the dominant rhythm sequence formation process is as follows:

[0025] Extract the positions in the rhythm change sequence corresponding to each time position in the trend change sequence, and organize them in a centralized manner according to the time order of the trend change sequence to form a continuous arrangement of key change positions;

[0026] Based on the relationship between changes in adjacent time positions in the trend change sequence, the order of key change positions is adjusted to form an arrangement structure that conforms to the path of change.

[0027] The positions in the rhythm change sequence corresponding to each rapid fluctuation segment in the disturbance change sequence are processed segment by segment, and the corresponding time positions are separated from the key change position arrangement structure while retaining the original position identifiers.

[0028] The rapidly fluctuating segments obtained by separation are uniformly arranged according to the order of the disturbance change sequence, and the key change positions are arranged after the structure is delayed and marked.

[0029] By sequentially splicing together the key change position arrangement structure and the fast fluctuation segments after delayed marking, a dominant rhythm sequence is formed.

[0030] Preferably, each time position in the key change position arrangement structure retains the correspondence in the rhythm change sequence, and the rapid fluctuation segment maintains the consistency of the internal time order during the delayed marking process, and is sequentially mapped to the delayed position in the dominant rhythm sequence according to the arrangement order in the disturbance change sequence.

[0031] Preferably, the steps for generating the timing arrangement result are as follows:

[0032] Based on the temporal position distribution in the dominant rhythm sequence, the switching action and sealing action of the screen changer are divided into stages to form a continuous action chain arranged in chronological order.

[0033] Taking the continuous action chain as the object, each stage is mapped to the time position in the dominant rhythm sequence, forming a one-to-one correspondence between action stages and time positions;

[0034] Referring to the arrangement relationship between adjacent time positions in the dominant rhythm sequence, the order of occurrence of each stage in the continuous action chain is adjusted to form an action sequence consistent with the path of change of the dominant rhythm.

[0035] Based on the distribution of time positions in the dominant rhythm sequence, the duration of each stage in the continuous action chain is divided accordingly, forming the time position range occupied by each stage.

[0036] By combining the correspondence between action sequence and duration, the stages in a continuous action chain are integrated according to the order of the dominant rhythm sequence to form a temporal arrangement result.

[0037] Preferably, the action phases maintain a one-to-one correspondence with the time positions in the dominant rhythm sequence, and when adjacent time positions are arranged consecutively in the dominant rhythm sequence, the corresponding action phases are maintained to advance in sequence. When there are changes or shifts in the dominant rhythm sequence, the corresponding action phases are adjusted in order according to the changes or shifts.

[0038] Preferably, the action execution and timing adjustment process is as follows:

[0039] According to the timing arrangement, the flow channel switching action and sealing and enclosing action are executed in the time sequence of the dominant rhythm sequence to form an action advancement process consistent with the dominant rhythm sequence.

[0040] During the movement, information on process changes is continuously recorded and written into a rhythm change sequence in chronological order to form a continuously expanding rhythm change sequence.

[0041] The updated rhythm change sequence is compared with the dominant rhythm sequence, and key change positions are compared item by item to determine whether the dominant rhythm sequence has shifted.

[0042] The key changes that have occurred are located using time reference results, and the action phases that have not yet been executed are re-corresponded according to the new time position.

[0043] The action phases are continuously executed based on the re-corresponding action phases, and key changes in the dominant rhythm sequence are tracked and recorded to maintain consistency between key time points and action phases.

[0044] Preferably, the key change position in the dominant rhythm sequence is consistent with the corresponding position in the rhythm change sequence, and the key change position is continuously located based on the time reference result. At the same time, the corresponding action stage is synchronously adjusted to the corresponding time position to maintain a stable correspondence between the action stage and the key change position.

[0045] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0046] This invention separates and expresses multi-scale changes during continuous operation, and reconstructs rhythmic change sequences based on trend change sequences. This allows the slow evolutionary changes and rapid fluctuations that were originally superimposed on the same time series to be organized in an orderly manner. As a result, the control process can make judgments around the continuously evolving change path, avoiding interference from short-term fluctuations in the identification of key time nodes, making the action triggering basis more stable, and effectively reducing the problem of action timing deviation caused by state judgment errors.

[0047] This invention constructs a dominant rhythm sequence and maps the advancement process of flow channel switching and sealing engagement actions into this dominant rhythm sequence. This allows the occurrence order and duration of each key action to dynamically unfold with the rhythm changes. At the same time, when the dominant rhythm sequence deviates, it makes synchronous adjustments to ensure that key time nodes remain consistent during the change process. This ensures the coordination between the flow channel switching process and the sealing process, and maintains stable connection of action execution in continuous operation. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0049] Figure 1 This is a schematic diagram of the timing linkage control system for the flow channel switching and sealing engagement action of the screen changer of the present invention. Detailed Implementation

[0050] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that the description of this disclosure will be more complete and fully convey the concept of the exemplary embodiments to those skilled in the art.

[0051] This invention provides, for example Figure 1 The timing-linked control system for the flow channel switching and sealing engagement actions of the screen changer shown includes a rhythm construction module, a multi-scale decomposition module, a dominant rhythm generation module, an action timing mapping module, and a dynamic correction control module.

[0052] The rhythm construction module collects process change information during the continuous operation of the network switcher, constructs a rhythm change sequence according to a unified time sequence, and divides the rhythm change sequence into segments based on the rate of change to obtain slow change segments and fast fluctuation segments, thus forming a time reference result.

[0053] During the continuous operation of the network switcher, process changes do not occur in a single form, but rather accumulate, connect, and transfer continuously over time. Therefore, in practical implementation, a continuous record base should first be established based on the change information that reflects the progress of the process under continuous operation, so that subsequent processing can proceed around a unified time sequence, rather than around scattered, discontinuous, and isolated fragments of change. The specific implementation steps are as follows:

[0054] After the network switcher enters continuous operation, process change information is acquired continuously and uninterruptedly. Each acquired process change is mapped to a unique time position, ensuring that the process change information has a clear temporal sequence from its inception. In practice, process change information is continuously written into the recording sequence according to the actual operation progress. Process change information from the previous time position is consecutively linked to that of the next time position, avoiding discrepancies, time overlaps, or recording jumps. The process change information corresponding to each time position retains its formation time, direction of change, magnitude of change, and connection status with the previous time position. This ensures that the process change information at any given time position not only reflects the current state of change but also demonstrates the progression relationship between the current position and previous and next time positions. Based on this, all process change information is arranged sequentially according to its formation order, with earlier-formed process change information at the beginning and later-formed information at the end. The process change information at all time positions is then expanded along the direction of time progression, forming a continuous and unbroken recording chain. The resulting record chain is not simply a stacking of collected results. Instead, under the premise of a unified time sequence, it incorporates the process changes at each moment of continuous operation into the same continuous trajectory, so that the time progression, the formation of changes, and the state transition are consistent, thus forming the basic sequence on which subsequent processing is based.

[0055] After the continuous recording chain is formed, the process change information is further organized into a rhythmic change sequence with a unified rhythmic expression, based on the connection between adjacent time positions within the continuous recording chain. This transforms the original recording state into an ordered sequence that directly reflects the rhythm of the running process. In specific implementation, based on the correspondence between adjacent time positions, the process change information of the previous time position is used as the reference starting point for the next time position, while the process change information of the next time position is used as the subsequent result of the change at the previous time position. This establishes a continuous connection between any two adjacent time positions. Subsequently, according to the direction of time progression, the connection between adjacent time positions is sequentially organized, so that the previous and next time positions are not simply parallel, but clearly reflect the progression from the previous state to the next. After this organization, every time position in the entire continuous recording chain falls under the same time frame, and every change can be identified as a component of the continuous process in the connection between successive and subsequent changes, rather than an isolated point record. Thus, the recording chain, which originally only indicated a continuous recording relationship, is further organized into a rhythmic change sequence that can express the rhythm of change. The initial part of the rhythmic change sequence corresponds to the changes formed in the initial stage of continuous operation, the middle part corresponds to the changes formed in the middle stage of continuous operation, and the final part corresponds to the changes formed in the subsequent stage of continuous operation. These parts are connected into a complete whole through a unified temporal sequence, ensuring that the rhythmic change sequence retains the specific changes at each time point while maintaining the continuous unfolding of the process over time. Through this processing, subsequent identification of change segments is no longer based on scattered information, but rather on the rhythmic change sequence that has been organized under a unified temporal order.

[0056] After the rhythmic change sequence is formed, the rate of change is identified segment by segment based on the progressive state of change between each consecutive time position in the rhythmic change sequence. The sequence is then divided into segments on the time axis according to the rate of change, giving clear boundaries and classifications to different states of change within the rhythmic change sequence. In practice, starting from the beginning of the rhythmic change sequence, the changes between adjacent time positions are observed sequentially along the time progression direction. When multiple consecutive time positions maintain the same forward progression, the changes are smoothly connected, and the transitions between previous and subsequent time positions unfold continuously, this continuous range is identified as the same type of progressive change range. When adjacent time positions experience repeated fluctuations within a short period, the transitions swing back and forth in the forward and backward directions, or the progressive change between adjacent positions is interrupted and restarted, this continuous range is identified as another type of progressive change range. As the sequence continues to be refined, the end position of the previous continuous range is directly connected to the beginning position of the next continuous range, thus dividing the entire rhythmic change sequence into multiple interconnected segments along the time direction. For segments where change unfolds continuously, the transitions between different time points within the segment are identified as slow-changing segments. For segments exhibiting repeated fluctuations, multiple shifts in direction, and alternating ups and downs within a short period, the changes are repeatedly interrupted, identifying them as fast-fluctuating segments. After this segmental division, each time point in the rhythmic change sequence is incorporated into a specific segment, eliminating unassigned time points. Each segment also has a clear start and end point, as well as continuously unfolding changes within it. This process ensures that slow-changing and fast-fluctuating segments are no longer merely abstract distinctions but appear as concrete segments within the rhythmic change sequence, arranged sequentially along a unified time direction, providing a complete foundation for subsequent time reference results.

[0057] Having already divided the slow-change and fast-fluctuation segments, the corresponding positions of each segment in the rhythmic change sequence are sequentially marked, and the segment positions are linked item by item to specific time positions in the rhythmic change sequence, forming a time reference result that can indicate the time position and segment attributes of any change content. In the specific implementation process, the starting position of each slow-change segment is first recorded, followed by the ending position of the same slow-change segment, including all time positions contained between the starting and ending positions within the scope of that slow-change segment. Subsequently, the starting and ending positions of each fast-fluctuation segment are recorded in the same way, including all time positions contained between the starting and ending positions within the scope of that fast-fluctuation segment. After completing the recording of all segment positions, the preceding, middle, and following segments are connected segment by segment according to the original time order of the rhythmic change sequence, ensuring that the arrangement order of all segments is consistent with the time progression direction of the rhythmic change sequence. Furthermore, each time position is associated with a corresponding segment category, ensuring that each time position simultaneously indicates two things: its position within the rhythmic change sequence and the segment category it belongs to. This time reference result preserves the continuous temporal order of the rhythmic change sequence, the category information after segmentation, and the sequential distribution of segments throughout the continuous process. Subsequent retrospective analysis around any given time position allows direct determination of whether the current position belongs to a slowly changing segment or a rapidly fluctuating segment, as well as identifying which segments have already occurred before and which segments will follow. This ensures that subsequent processing is based on a unified, continuous, and traceable time reference, guaranteeing that the overall information processing is chronologically coherent, segmentally clear, and with clearly defined positional correspondences.

[0058] The multi-scale decomposition module, under the constraint of time reference results, performs backtracking processing on the changes before and after the corresponding time position of the rhythm change sequence, unfolds the slow change segment in time sequence to form a trend change sequence, and at the same time, splits the fast fluctuation segment into segments to form a disturbance change sequence.

[0059] Once the time reference results are established, each time position in the rhythmic change sequence has a clear chronological order, segment affiliation, and boundary location. This allows for continuous tracing of the formation process of any time position under a unified time constraint. This separates and organizes the slow evolutionary parts and rapid fluctuations that were originally intertwined in the same time progression chain, forming independent sequences that directly reflect different change attributes. The specific implementation steps are as follows:

[0060] Based on the start position, end position, segment connection order, and time position correspondence already recorded in the time reference results, the changes at each time position are read one by one along the time progression direction, starting from the beginning of the rhythm change sequence. When reading each time position, multiple consecutive time positions before that time position are looked back at, and multiple consecutive time positions after that time position are looked back at. This makes the current time position no longer treated as an isolated point, but placed in a complete chain of consecutive changes for observation. In practice, once the current time position is read, it is first determined whether it falls within a slow-changing or rapid-fluctuating segment based on the time reference results. Then, following the order recorded in the time reference results, the previous time position directly connected to the current time position is retrieved, and so on, until the time position directly connected to the previous time position is retrieved again, thus unfolding the change path before the current time position was formed. After reviewing backward, the next time position directly connected to the current time position is retrieved, and so on, until the time position directly connected to the next time position is retrieved again, thus unfolding the change path after the current time position is formed. Through this continuous backward review method, the current time position, the change trajectory before the current position, and the change trajectory after the current position are incorporated into the same continuously unfolding time chain, thereby ensuring that each change within the rhythm change sequence has complete information on its origin and destination. At this point, the time reference results not only serve as segment markers, but also constrain the scope of the review, the order of the review, and the connection between the time positions during the review process. This ensures that the backtracking process always revolves around the defined time boundaries and segment boundaries, preventing slowly changing segments from being mixed with rapidly fluctuating segments during the sorting process. This establishes a continuous and clear foundation for the subsequent separate development of slowly changing segments and the splitting of rapidly fluctuating segments.

[0061] Based on the established forward and backward viewing paths, all segments marked as slowly changing sections in the time reference results are sequentially unfolded according to their order of appearance in the rhythmic change sequence. This extracts the continuously advancing changes within each slowly changing section from the original rhythmic change sequence and reconnects them into a separate continuous change trajectory. In the specific implementation, starting from the first slowly changing section corresponding to the beginning of the rhythmic change sequence, the starting position of the slowly changing section is read first. Then, all subsequent time positions within the slowly changing section are read sequentially according to the time progression direction. The changes corresponding to each time position are unfolded item by item according to the original time sequence until the end position of the slowly changing section is reached. After the unfolding of the first slowly changing section is completed, the content of the fast fluctuation section following it is not inserted. Instead, the next slowly changing section is searched for along the time reference results, and the starting position of the next slowly changing section is used as the position for continued unfolding. All time positions within the next slowly changing section are then arranged in the original order after the previous slowly changing section. Following this processing method, multiple slowly changing segments located at the beginning, middle, and end of the rhythmic change sequence are extracted segment by segment and sequentially combined, restoring the slow progression process, which was previously interrupted by rapid fluctuation segments, to a continuous unfolding state. In this process, the internal order of each slowly changing segment remains unchanged, as does the sequential order between each slowly changing segment and its subsequent slow changing segments. All time positions belonging to the slowly changing attribute in the rhythmic change sequence are rearranged into a sequence that extends continuously along the timeline. The resulting trend change sequence fully preserves the continuity of changes within the slowly changing segments, the sequential relationship between adjacent slowly changing segments, and the progression path of the slowly evolving portion throughout the continuous operation. This allows subsequent processing to directly identify the direction of continuous evolution based on the trend change sequence, without being affected by the insertion of rapid fluctuation segments.

[0062] After the trend change sequence has been formed, the entire sequence marked as a rapid fluctuation area in the time reference result is further segmented. This process completely separates the rapid fluctuations that were originally interspersed within the rhythm change sequence, forming an independent perturbation change sequence that expresses short-term changes. In practice, starting from the first rapid fluctuation area corresponding to the beginning of the rhythm change sequence, the start and end positions of this rapid fluctuation area are read, and all time positions contained between the start and end positions are extracted one by one in their original order. During the extraction process, the order of the time positions within the rapid fluctuation area is not changed, the continuous changes within the rapid fluctuation area are not compressed, and multiple fluctuation segments within the rapid fluctuation area are not merged into a single record. Instead, the original change trajectory of each time position within the rapid fluctuation area is preserved, so that this rapid fluctuation area is saved as a complete and independent segment. After splitting the first rapid fluctuation segment, the second rapid fluctuation segment is located by following the time reference result, and all time positions within the second rapid fluctuation segment are extracted in the same way. Then, the remaining rapid fluctuation segments located in the middle and later parts of the rhythm change sequence are processed sequentially, so that each rapid fluctuation segment is separated from the rhythm change sequence as an independent fragment. After this segment-by-segment splitting process, the rapid fluctuation segments that were originally distributed alternately with slow change segments within the rhythm change sequence are reorganized into multiple separate, internally continuous change segments arranged in chronological order. These change segments together constitute the perturbation change sequence. The perturbation change sequence fully preserves the occurrence position of each rapid fluctuation segment, the order of fluctuations within the segment, and the chronological relationship between the rapid fluctuation segments. This ensures that short-term fluctuations do not mix into the trend change sequence and do not lose their original time attributes, thus providing a directly usable independent basis for subsequent rhythm reorganization around the perturbation distribution.

[0063] After the trend change sequence and the disturbance change sequence are formed, a one-to-one correspondence is established between them and the rhythm change sequence. This ensures that although the three types of sequences are separate in their expression, they remain consistent in terms of time source, position mapping, and sequence, thus forming a unified correspondence framework that can support the subsequent processing. In practice, the first time position in the trend change sequence is first traced back to the corresponding original time position in the rhythm change sequence, and this correspondence is recorded. Subsequently, the second, third, and all subsequent time positions in the trend change sequence are processed in the same way, so that each position in the trend change sequence can be traced back to its specific source position in the rhythm change sequence. After completing the corresponding records for the trend change sequence, the starting and ending positions of the first rapid fluctuation segment in the disturbance change sequence are determined within the rhythm change sequence, and this segment is associated with the original segment boundary in the rhythm change sequence. Subsequently, the same process is applied to the second, third, and all subsequent rapid fluctuation segments in the disturbance change sequence, ensuring that each rapid fluctuation in the disturbance change sequence accurately points back to its original position range in the rhythm change sequence. After establishing the correspondence between the three types of sequences, the continuously evolving content in the trend change sequence and the segmented fluctuation content in the disturbance change sequence are uniformly sorted based on the fixed sequence information in the time reference results. This ensures that any time position, whether in the trend change sequence or the disturbance change sequence, can clearly determine its source, preceding, and subsequent positions in the original rhythm change sequence. The resulting processing solution unfolds the slowly changing segments in chronological order to form a trend change sequence, while simultaneously breaking down the rapidly fluctuating segments into a disturbance change sequence based on their boundaries. This maintains a continuous mapping relationship between the two types of sequences and the original rhythmic change sequence. Consequently, when processing subsequent changes around key locations, the continuous evolution information reflected in the trend change sequence can be directly utilized, while the short-term fluctuation distribution information reflected in the disturbance change sequence can be used simultaneously. The entire processing chain is clearly connected, with complete time correspondence and a clear source of change.

[0064] The dominant rhythm generation module reconstructs the rhythm change sequence based on the trend change sequence, rearranges the key change positions according to the change direction of the trend change sequence, and performs delayed marking on the high-frequency fluctuation positions corresponding to the disturbance change sequence to obtain the dominant rhythm sequence.

[0065] After the trend change sequence and the disturbance change sequence have been separated and their correspondence established with the rhythm change sequence, the original interleaved change structure within the rhythm change sequence has the basis for reorganization. At this point, by prioritizing the organization of the continuous evolution relationship reflected in the trend change sequence and delaying the processing based on the distribution of each rapid fluctuation segment in the disturbance change sequence, the rhythm change sequence can complete structural reconstruction while maintaining consistency in its origin, thus forming a sequence structure dominated by continuous evolution. The specific implementation steps are as follows:

[0066] For each time point that has unfolded continuously in the trend change sequence, its corresponding position in the rhythm change sequence is extracted item by item. These corresponding positions are then centrally organized according to the arrangement order of the trend change sequence, thus regrouping the key change positions that were originally scattered in different segments of the rhythm change sequence. In the specific implementation process, starting from the starting time position of the trend change sequence, each time point is read sequentially, and its original position in the rhythm change sequence is located one by one according to the previously established time correspondence. After the location is completed, these positions are rearranged according to the chronological order of the trend change sequence, so that the time positions belonging to the slow change segment form a continuous distribution in the new arrangement structure, while maintaining the chronological origin relationship of each time position in the original rhythm change sequence. Through this process, all key change positions in the rhythm change sequence that reflect continuous evolution are removed from the original state of being divided by the intervals of the rapid fluctuation segment, forming a continuously advancing basic structure in the new arrangement, thus providing a unified basis for further adjustments according to the direction of change.

[0067] After the key change points have been centrally organized, the order of these key change points is adjusted to maintain consistency, based on the connection between adjacent time points in the trend change sequence, ensuring a unified path of change progression. In practice, adjacent time points in the trend change sequence are read pairwise, and the continuity of change between them is observed. This continuity is then mapped to the centrally organized key change points. When adjacent time points exhibit a continuous connection, the order of the corresponding key change points remains unchanged. When a shift occurs between adjacent time points, the order of the corresponding key change points is adjusted, using the time of the shift as the boundary, ensuring a continuous connection between the key change points before and after the shift. Through this step-by-step adjustment, the arrangement of key change points not only conforms to chronological order but also to the path of change progression, allowing the dominant changes in the rhythmic change sequence to be expressed in a continuous manner, thus completing the rearrangement process based on the direction of change in the trend change sequence.

[0068] After the key change locations are rearranged according to the direction of change, the corresponding positions of these rapid fluctuation segments in the rhythm change sequence are processed segment by segment around the rapid fluctuation segments recorded in the perturbation change sequence, and they are separated from the current arrangement structure. In the specific implementation process, starting from the beginning of the perturbation change sequence, each rapid fluctuation segment is read segment by segment, and the start and end positions of the rapid fluctuation segment in the rhythm change sequence are determined according to the time correspondence. In the arrangement structure where the key change locations have been rearranged, all time positions between these start and end positions are found and removed from the current arrangement structure. At the same time, the existence marker of the segment is retained in the original arrangement position to keep the time source relationship intact. Through this segment-by-segment separation process, the rapid fluctuation segments no longer participate in the direct arrangement of the key change locations, thus ensuring that the dominant change path is not affected by short-term fluctuations during the arrangement process.

[0069] After separating the rapid fluctuation segments, the separated segments are uniformly organized and, according to their original chronological order in the perturbation change sequence, their post-marking is applied, shifting them backward in the new sequence structure. In practice, the first separated rapid fluctuation segment is ordered according to its position in the perturbation change sequence, and placed at a designated position after the key change position arrangement, while maintaining its original temporal order within the segment. Subsequently, the second rapid fluctuation segment is arranged sequentially after the first, and subsequent rapid fluctuation segments are processed according to the perturbation change sequence order, ensuring all rapid fluctuation segments are arranged in the new sequence according to their original occurrence order. This process maintains the order of occurrence of rapid fluctuation segments in the overall sequence consistent with the original rhythmic change sequence, but shifts their participation position backward relative to the key change position, thus achieving post-marking of high-frequency fluctuation positions.

[0070] After integrating the rearranged results of key change positions with the delayed rapid fluctuation segments, the two parts are uniformly spliced ​​together to form a continuous arrangement structure within the same sequence, which serves as the final dominant rhythm sequence. In the specific implementation, the key change positions are first arranged sequentially according to the rearranged order to form the beginning of the sequence. Then, the delayed rapid fluctuation segments are connected to the end of the sequence segment by segment in a predetermined order, creating a structure in the temporal expression of the entire sequence that first shows continuous evolution and then supplements with fluctuations. During the splicing process, the original correspondence of each time position in the rhythm change sequence and its mapping relationship with the trend change sequence and the disturbance change sequence are preserved, ensuring that the dominant rhythm sequence not only reflects the new arrangement structure but also allows for tracing the origin of any time position. Through the above processing, the final dominant rhythm sequence is dominated by the continuous evolution reflected in the trend change sequence, while the rapid fluctuations reflected in the disturbance change sequence serve as a delayed supplement, thus achieving an orderly expression of both types of changes within a unified sequence and providing a stable basis for subsequent action timing mapping.

[0071] The action timing mapping module maps the advancement process of the screen changer flow channel switching action and sealing and clamping action based on the dominant rhythm sequence, and re-corresponds the occurrence sequence and duration of each key action to the dominant rhythm sequence, forming a timing arrangement result that changes with the dominant rhythm.

[0072] After the dominant rhythm sequence has been formed and the key change path reconstruction has been completed, the dominant relationship of rhythm changes in the time progression process has been clearly expressed. At this point, by embedding the advancement processes of the screen changer channel switching action and the sealing and clamping action into the dominant rhythm sequence item by item, the action execution process unfolds with the changes in the dominant rhythm, thereby forming a unified temporal arrangement relationship. The specific implementation steps are as follows:

[0073] Based on the established time sequence of the dominant rhythm sequence, the entire process of the screen changer's channel switching and sealing / coupling actions is broken down into detailed steps, allowing each stage of the action to be individually identified and mapped to a specific time position. In practice, starting from the initial time position of the dominant rhythm sequence, the changing states corresponding to each time position are read item by item. According to the actual progress of the action, the channel switching action is divided into three consecutive stages: the initial opening stage, the channel transition stage, and the target channel establishment stage. Simultaneously, the sealing / coupling action is divided into three consecutive stages: the contact formation stage, the bonding advancement stage, and the closing stabilization stage. During this division, a seamless connection is established between each stage, with the end position of the previous stage directly connecting to the start position of the next stage, thus forming a continuous action chain covering the entire action progression process. This provides a clear structure for subsequent mapping with the dominant rhythm sequence.

[0074] Based on the established action chain, each stage of the action chain is mapped to a specific time position in the dominant rhythm sequence, allowing the action progression to unfold according to the time structure of the dominant rhythm sequence. In practice, starting from the first key change position at the beginning of the dominant rhythm sequence, the initial initiation stage of the channel switching action is mapped to that time position, marking the start of the channel switching action. Subsequently, the contact formation stage of the sealing and enclosing action is mapped to the immediately following time position, ensuring that the sealing and enclosing action enters the contact state after the channel switching action begins. Continuing along the time sequence of the dominant rhythm sequence, the channel transition stage of the channel switching action is mapped to multiple subsequent consecutive time positions, while the fitting and advancing stage of the sealing and enclosing action is mapped to adjacent time positions, creating an alternating progression relationship between the two types of actions over time. Through this step-by-step mapping, a one-to-one correspondence is established between each stage of the action chain and the time position in the dominant rhythm sequence, thus achieving the dependence of the action progression process on changes in the dominant rhythm.

[0075] After mapping each stage to the dominant rhythm sequence, the sequence of events in the action chain is rearranged based on the preceding and following relationships between adjacent time positions in the dominant rhythm sequence, ensuring that the order of action progression aligns with the path of change in the dominant rhythm. In practice, the arrangement relationships between adjacent time positions in the dominant rhythm sequence are read sequentially and mapped to the corresponding stages in the action chain. When a continuous progression relationship exists between previous and subsequent time positions in the dominant rhythm sequence, the order of the corresponding action stages remains unchanged, allowing the flow channel switching and sealing / closing actions to unfold gradually in a predetermined order. When a critical change occurs in the dominant rhythm sequence, the order of the corresponding action stages is rearranged, using this adjustment position as the boundary, ensuring a continuous connection between the action stages before and after the adjustment. This rearrangement ensures that each stage in the action chain remains consistent with the dominant rhythm sequence throughout the time progression, thus preventing the execution order from being affected by fluctuations in the original time.

[0076] After the sequence of action phases is rearranged, the duration of each phase in the dominant rhythm sequence is re-corresponded, allowing the action to unfold according to the changes in the dominant rhythm. In specific implementation, based on the continuous distribution of time positions in the dominant rhythm sequence, the time position range corresponding to each phase of the channel switching action is divided. The initial opening phase covers the starting position and several subsequent consecutive time positions, the channel transition phase covers several consecutive intermediate time positions, and the target channel establishment phase covers subsequent consecutive time positions. Simultaneously, the contact formation phase, the bonding advancement phase, and the closing stabilization phase of the sealing and enclosing action are respectively mapped to adjacent time position ranges in the dominant rhythm sequence, establishing a correspondence between the sealing and enclosing action and the channel switching action as time progresses. Through this duration correspondence, each action phase occupies a specific time interval in the dominant rhythm sequence, thus establishing a direct link between the action duration and rhythm changes.

[0077] After completing the mapping, sequence adjustment, and duration mapping of action stages, all action stages are integrated according to the order of the dominant rhythm sequence. This ensures that the flow channel switching action and the sealing and enclosing action are expressed in a unified manner within the same time frame, resulting in a timing arrangement that changes with the dominant rhythm. In the specific implementation process, each stage in the action chain is arranged sequentially according to the adjusted order, and each stage is mapped to a specific time position in the dominant rhythm sequence, so that each time position corresponds to a clear action state. At the same time, the source correspondence between each time position and the rhythm change sequence is retained, allowing for time backtracking after the timing arrangement is formed. Through the above integration, the final timing arrangement is based on the dominant rhythm sequence as the time reference, unifying the order and duration of the flow channel switching action and the sealing and enclosing action into the same arrangement structure, thereby achieving synergy between the action execution process and rhythm changes.

[0078] The dynamic correction control module executes the screen changer flow channel switching action and sealing and clamping action according to the timing arrangement result, and continuously updates the rhythm change sequence during the execution process. When the dominant rhythm sequence deviates, the timing of subsequent actions is adjusted synchronously according to the time reference result to maintain the consistency of key time nodes.

[0079] Once the timing arrangement has been finalized and aligned with the dominant rhythm sequence, the execution process is ready to proceed in accordance with the changes in the dominant rhythm. At this point, the timing arrangement is implemented item by item, with continuous updates to the rhythm change sequence introduced during execution. Simultaneously, when the dominant rhythm sequence changes position, the timing of subsequent actions is adjusted synchronously based on the time reference results, ensuring that key time nodes remain consistent throughout the entire execution process. The specific implementation steps are as follows:

[0080] Based on the clearly defined correspondence between each action stage in the timing sequence, starting from the initial time position of the dominant rhythm sequence, the channel switching action and sealing and clamping action of the screen changer are triggered sequentially according to the time order, ensuring that the action execution process is consistent with the time progression of the dominant rhythm sequence. In specific implementation, the first time position of the dominant rhythm sequence corresponds to the initial state of the channel switching action and the initial contact state of the sealing and clamping action, establishing the corresponding action states at this time position. Subsequently, advancing along the dominant rhythm sequence, the subsequent time positions correspond sequentially to the channel transition state of the channel switching action and the fitting and advancing state of the sealing and clamping action, creating an alternating advancement relationship between the two actions during the time progression. Continuing to advance to the subsequent time positions of the dominant rhythm sequence, the channel switching action is advanced to the target channel establishment state, and the sealing and clamping action is advanced to the closure completion state, thus enabling the entire action execution process to unfold step by step according to the arrangement order of the dominant rhythm sequence, establishing a direct correspondence between action execution and rhythm changes.

[0081] As the action execution continues, the process change information generated during the current operation is continuously written into the record in chronological order, and the newly added change information is connected with the existing rhythm change sequence, so that the rhythm change sequence maintains a continuous expansion state during execution. In specific implementation, while the action is executed at the time position corresponding to each dominant rhythm sequence, the change state of that time position is recorded and appended to the end of the rhythm change sequence, so that the new time position is connected to the original time position in chronological order. Subsequently, the updated rhythm change sequence is further organized according to the predetermined segmentation method, so that the new time position can be classified into a slow change segment or a fast fluctuation segment after entering the sequence, and maintain a continuous connection with the original segment structure. Through this continuous recording and organization, the rhythm change sequence constantly reflects the latest change state during the action execution, thus providing a continuous basis for the subsequent update of the dominant rhythm sequence.

[0082] After updating the rhythm change sequence while maintaining the continuity of the segment structure, the updated rhythm change sequence is matched item by item with the dominant rhythm sequence upon which the current execution is based, ensuring that the dominant rhythm sequence remains associated with the latest change state throughout the execution process. In practice, newly added time positions in the rhythm change sequence are aligned with their corresponding time positions in the dominant rhythm sequence, and the arrangement of key change positions in both sequences is compared chronologically. When a key change position in the rhythm change sequence aligns with its corresponding position in the dominant rhythm sequence, the current execution order remains unchanged. When a key change position in the rhythm change sequence shifts relative to its position in the dominant rhythm sequence, this change is considered an offset in the dominant rhythm sequence, and the corresponding segment and time position of this offset in the time reference result are recorded, thus providing a clear basis for subsequent adjustments.

[0083] After identifying a shift in the dominant rhythm sequence, the unexecuted action phases are re-corresponded based on the segment positions and time sequence relationships recorded in the time reference results, ensuring that the timing of subsequent actions aligns with the updated dominant rhythm sequence. In practice, the original positions of the key shifted locations in the time reference results and their new positions in the updated rhythm sequence are first determined. Then, the unexecuted flow channel switching action phases are rearranged according to the new time position order, shifting the action phases originally planned for execution at the original time position to the new time position. Simultaneously, the corresponding phases of the sealing and enclosing action are adjusted in the same way, ensuring that the sealing and enclosing action and the flow channel switching action maintain a coordinated progression in the new dominant rhythm sequence. This re-correspondence allows for timely adjustments to the action execution process after changes in the dominant rhythm sequence, thus preventing deviations between action execution and the changing rhythm.

[0084] After completing the action execution progression, rhythm change sequence update, and dominant rhythm sequence offset adjustment, key time nodes in the dominant rhythm sequence are continuously tracked, ensuring that the correspondence between these key time nodes remains consistent throughout the execution process. In practice, a corresponding record is established for each key change position in the dominant rhythm sequence, and this record is synchronously saved with the corresponding action stage. This ensures that during subsequent rhythm change sequence updates, regardless of any offset in the dominant rhythm sequence, each key change position can be re-corresponded to the same action stage. Simultaneously, as the execution process continues, the above update and adjustment process is repeated, ensuring that key time nodes maintain a stable correspondence with action stages throughout the entire execution cycle. Through this continuous tracking and maintenance, the final action execution process maintains a unified temporal structure even in continuously changing environments, thus guaranteeing the coordination and consistency of the screen changer channel switching action and the sealing and clamping action throughout the entire process.

[0085] This invention separates and expresses multi-scale changes during continuous operation, and reconstructs rhythmic change sequences based on trend change sequences. This allows the slow evolutionary changes and rapid fluctuations that were originally superimposed on the same time series to be organized in an orderly manner. As a result, the control process can make judgments around the continuously evolving change path, avoiding interference from short-term fluctuations in the identification of key time nodes, making the action triggering basis more stable, and effectively reducing the problem of action timing deviation caused by state judgment errors.

[0086] This invention constructs a dominant rhythm sequence and maps the advancement process of flow channel switching and sealing engagement actions into this dominant rhythm sequence. This allows the occurrence order and duration of each key action to dynamically unfold with the rhythm changes. At the same time, when the dominant rhythm sequence deviates, it makes synchronous adjustments to ensure that key time nodes remain consistent during the change process. This ensures the coordination between the flow channel switching process and the sealing process, and maintains stable connection of action execution in continuous operation.

[0087] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A timing linkage control system for the combined action of the switching and sealing of the flow channel of a screen changer, characterized in that It includes a rhythm construction module, a multi-scale decomposition module, a dominant rhythm generation module, a motion timing mapping module, and a dynamic correction control module: The rhythm construction module collects process change information during the continuous operation of the network switcher, constructs a rhythm change sequence according to a unified time sequence, and divides the rhythm change sequence into segments based on the rate of change to obtain slow change segments and fast fluctuation segments, forming a time reference result. The multi-scale decomposition module, under the constraint of time reference results, performs backtracking processing on the changes before and after the corresponding time position of the rhythm change sequence, unfolds the slow change segment in time sequence to form a trend change sequence, and at the same time, splits the fast fluctuation segment into segments to form a disturbance change sequence. The dominant rhythm generation module reconstructs the rhythm change sequence based on the trend change sequence, rearranges the key change positions according to the change direction of the trend change sequence, and performs delayed marking on the high-frequency fluctuation positions corresponding to the disturbance change sequence to obtain the dominant rhythm sequence. The action timing mapping module maps the advancement process of the screen changer flow channel switching action and sealing and clamping action based on the dominant rhythm sequence, and re-corresponds the occurrence sequence and duration of each key action to the dominant rhythm sequence, forming a timing arrangement result that changes with the dominant rhythm. The dynamic correction control module executes the screen changer flow channel switching action and sealing and clamping action according to the timing arrangement result, and continuously updates the rhythm change sequence during the execution process. When the dominant rhythm sequence deviates, the timing of subsequent action execution is synchronously adjusted according to the time reference result.

2. The timing linkage control system for the switching of the screen changer flow channel and the sealing engagement action according to claim 1, characterized in that, The steps for generating time reference results are as follows: The process change information during continuous operation is acquired and recorded sequentially at the corresponding unique time position, forming a record sequence that unfolds continuously in time. Organize the records around the changing relationships between adjacent time positions in the sequence, and transform the sequence into a rhythmic change sequence arranged in chronological order; Based on the change and progression state between adjacent time positions in the rhythm change sequence, segment by segment is identified, and segments with continuous change progression are identified as slow change segments, while segments with repeated changes in direction are identified as fast fluctuation segments. Based on the starting and ending positions of the slow-changing and fast-fluctuating segments in the rhythm change sequence, the time positions are sequentially marked, and a correspondence is established between each time position and the corresponding segment category to form a time reference result.

3. The timing linkage control system for the switching of the screen changer flow channel and the sealing engagement action according to claim 2, characterized in that, The formation process of trend change sequences and disturbance change sequences is as follows: Based on the time reference results, the time positions in the rhythm change sequence are reviewed back and forth, and the continuous change path is unfolded along the time sequence to form a continuous change chain. Around the time positions marked as slow change segments in the continuous change chain, the changes within each slow change segment are unfolded segment by segment in chronological order, and then arranged sequentially according to the segment order to form a trend change sequence. For the time positions marked as rapid fluctuation segments in the time reference results, the change content is extracted segment by segment according to the start and end positions of the segment, and the rapid fluctuation segments are arranged in the order of occurrence to form a disturbance change sequence. Based on the time reference results, the trend change sequence and the disturbance change sequence are respectively mapped to the time position in the rhythm change sequence, and the time order is kept consistent to form a unified correspondence.

4. The timing linkage control system for the switching of the screen changer flow channel and the sealing engagement action according to claim 3, characterized in that, During the formation of a trend change sequence, slow-changing segments are continuously unfolded in chronological order and arranged in a segment-by-segment sequence; during the formation of a disturbance change sequence, fast-fluctuation segments are extracted segment by segment according to the segment boundaries and arranged in the original chronological order. The trend change sequence and the disturbance change sequence correspond to the time positions in the rhythm change sequence and maintain the same order.

5. The timing linkage control system for the switching of the screen changer flow channel and the sealing engagement action according to claim 4, characterized in that, The formation process of the dominant rhythm sequence is as follows: Extract the positions in the rhythm change sequence corresponding to each time position in the trend change sequence, and organize them in a centralized manner according to the time order of the trend change sequence to form a continuous arrangement of key change positions; Based on the relationship between changes in adjacent time positions in the trend change sequence, the order of key change positions is adjusted to form an arrangement structure that conforms to the path of change. The positions in the rhythm change sequence corresponding to each rapid fluctuation segment in the disturbance change sequence are processed segment by segment, and the corresponding time positions are separated from the key change position arrangement structure while retaining the original position identifiers. The rapidly fluctuating segments obtained by separation are uniformly arranged according to the order of the disturbance change sequence, and the key change positions are arranged after the structure is delayed and marked. By sequentially splicing together the key change position arrangement structure and the fast fluctuation segments after delayed marking, a dominant rhythm sequence is formed.

6. The timing linkage control system for the switching of the screen changer flow channel and the sealing engagement action according to claim 5, characterized in that, In the key change position arrangement structure, each time position retains the correspondence in the rhythm change sequence, and the rapid fluctuation segment maintains the consistency of the internal time order during the delayed marking process, and is sequentially mapped to the delayed position in the dominant rhythm sequence according to the arrangement order in the disturbance change sequence.

7. The timing linkage control system for the switching of the screen changer flow channel and the sealing engagement action according to claim 6, characterized in that, The steps for generating the timing sequence results are as follows: Based on the temporal position distribution in the dominant rhythm sequence, the switching action and sealing action of the screen changer are divided into stages to form a continuous action chain arranged in chronological order. Taking the continuous action chain as the object, each stage is mapped to the time position in the dominant rhythm sequence, forming a one-to-one correspondence between action stages and time positions; Referring to the arrangement relationship between adjacent time positions in the dominant rhythm sequence, the order of occurrence of each stage in the continuous action chain is adjusted to form an action sequence consistent with the path of change of the dominant rhythm. Based on the distribution of time positions in the dominant rhythm sequence, the duration of each stage in the continuous action chain is divided accordingly, forming the time position range occupied by each stage. By combining the correspondence between action sequence and duration, the stages in a continuous action chain are integrated according to the order of the dominant rhythm sequence to form a temporal arrangement result.

8. The timing linkage control system for the switching of the screen changer flow channel and the sealing engagement action according to claim 7, characterized in that, The action phases maintain a one-to-one correspondence with the time positions in the dominant rhythm sequence. When adjacent time positions are arranged consecutively in the dominant rhythm sequence, the corresponding action phases are maintained in sequence. When there are changes or shifts in the dominant rhythm sequence, the corresponding action phases are adjusted in order according to the changes or shifts.

9. The timing linkage control system for the switching of the screen changer flow channel and the sealing engagement action according to claim 7, characterized in that, The action execution and timing adjustment process is as follows: According to the timing arrangement, the flow channel switching action and sealing and enclosing action are executed in the time sequence of the dominant rhythm sequence to form an action advancement process consistent with the dominant rhythm sequence. During the movement, information on process changes is continuously recorded and written into a rhythm change sequence in chronological order to form a continuously expanding rhythm change sequence. The updated rhythm change sequence is compared with the dominant rhythm sequence, and key change positions are compared item by item to determine whether the dominant rhythm sequence has shifted. The key changes that have occurred are located using time reference results, and the action phases that have not yet been executed are re-corresponded according to the new time position. The action phases are continuously executed based on the re-corresponding actions, and key changes in the dominant rhythm sequence are tracked and recorded.

10. The timing linkage control system for the switching of the screen changer flow channel and the sealing engagement action according to claim 9, characterized in that, The key change position is consistent with the corresponding position in the rhythm change sequence in the dominant rhythm sequence, and the key change position is continuously located based on the time reference result, while the corresponding action stage is synchronously adjusted to the corresponding time position.

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