Steel processing control method and steel processing system

Abstract

The invention provides a steel machining control method and a steel machining system. The method comprises the steps that preset steel machining parameter information is sent to a first-stage controller through a second-stage controller; the first-level controller determines the first duration required by the first steel to reach the coiling machine based on the steel machining parameter information, and the first steel is the steel to be machined at present; the motion state sensor obtains motion state information of second steel and sends the motion state information to the first-stage controller, the motion state information comprises the position, speed or acceleration information of the second steel, and the second steel is currently machined steel; predicting the motion track of the second steel by using the motion state information and the processing flow information through a first-stage controller, and determining a second duration required by the second steel to leave the coiling machine; and under the condition that the first duration is smaller than the second duration, the first-stage controller sends a forbidding instruction to the entrance equipment so as to forbid the first steel to be machined through the steel machining system.

Description

Technical Field

[0001] The present application relates to the technical field of metal processing, and in particular to a steel processing control method and a steel processing system. Background Art

[0002] In the hot rolling production line of steel, in order to improve the production line capacity and save costs, it is sometimes necessary to produce steel of different specifications on the same hot rolling production line. In such a case, due to the jump of rolling specifications, different planned specifications and accelerated rolling rhythm, tail-end collision occurs in the layer cooling area (i.e. the area where the strip is cooled), resulting in scrap steel. In addition, even for steel of the same specification, if there is a large temperature difference between the previous piece of steel and the next piece of steel of the same or similar specifications, it is easy to cause tail-end collision and jump stop in the layer cooling area during fast-paced rolling.

[0003] The main reason for the above problems is that there are problems with the steel feeding control point of the production line. Since the speed and acceleration rate issued by the control system may be different for each piece of steel, if the difference is not taken into account during processing, the distance between the two pieces of steel may gradually decrease during the processing, increasing the risk of rear-end collision. Summary of the invention

[0004] The embodiments of the present application provide a steel processing control method and a steel processing system, which can reduce the risk of rear-end collision during the processing.

[0005] In a first aspect, the present application provides a steel processing control method, which is applied to a steel processing system, wherein the steel processing system includes an inlet device, a transport device, a coiler, a primary controller, a secondary controller, and a motion state sensor, wherein the inlet device is used to feed steel into the transport device, and the transport device is used to transport steel in the steel processing system, and the motion state sensor is correspondingly arranged in each section of the steel processing system, and the method includes:

[0006] Sending preset steel processing parameter information to the primary controller via the secondary controller;

[0007] Determining, by a primary controller based on the steel processing parameter information, a first time required for a first steel to reach a coiler, wherein the first steel is the steel currently to be processed;

[0008] Acquire motion state information of the second steel material through a motion state sensor and send it to the primary controller, wherein the motion state information includes position, speed or acceleration information of the second steel material, and the second steel material is the steel material currently being processed;

[0009] The primary controller uses the motion state information and the processing flow information to predict the motion trajectory of the second steel material, and determines a second time required for the second steel material to leave the coiler;

[0010] When the first time length is shorter than the second time length, a prohibition instruction is sent to the entrance device through the primary controller to prohibit the first steel material from being processed by the steel material processing system.

[0011] In some possible implementations, the first-level controller predicts the motion trajectory of the second steel material by using the motion state information and the processing flow information to determine the second time required for the second steel material to leave the coiler, including:

[0012] Predicting, by means of a primary controller, the movement trajectory of the second steel material in each section based on the movement state information and processing flow information corresponding to each section, wherein the section is the section where the second steel material needs to be processed after leaving the coiler;

[0013] Obtaining, by the primary controller, a corresponding second estimated processing time according to each of the predicted motion trajectories;

[0014] The first-level controller accumulates multiple second estimated processing times to obtain a second time.

[0015] In some possible implementations, acquiring the motion state information of the second steel material through a motion state sensor and sending the information to the primary controller includes:

[0016] Acquiring tail tracking data corresponding to the second steel material in each of the sections through a motion state sensor;

[0017] The tail tracking data is sent to the primary controller via a motion state sensor.

[0018] In some possible implementations, predicting the motion trajectory of the second steel material in each section by the primary controller based on the motion state information and processing flow information corresponding to each section includes:

[0019] Determining the current motion characteristics of the second steel material based on the tail tracking data corresponding to each section by the primary controller;

[0020] Establishing a motion model of the second steel material according to the current motion characteristics and processing flow information of the second steel material through the primary controller;

[0021] Calculating a corresponding motion trajectory according to the motion model of the second steel material by a primary controller;

[0022] Obtaining a corresponding second estimated processing time according to each of the predicted motion trajectories through the primary controller includes:

[0023] Determining the corresponding moving speed of the second steel material according to the motion trajectory by a primary controller;

[0024] The preset section length data is divided by the corresponding moving speed of the second steel material through the primary controller to obtain the second estimated processing time corresponding to the second steel material.

[0025] In some possible implementations, before accumulating the plurality of second estimated processing times by the primary controller to obtain the second time, the method further includes:

[0026] Obtain the preset ready time of the coiler through the primary controller;

[0027] The step of accumulating the plurality of second estimated processing times by the primary controller to obtain the second time duration comprises:

[0028] The first-level controller accumulates multiple second estimated processing times and the preset ready time to obtain a second time.

[0029] In some possible implementations, determining, by the primary controller based on the steel material processing parameter information, a first time required for the first steel material to reach the coiler includes:

[0030] Determine, by a primary controller, a first estimated processing time corresponding to each section of the first steel material, wherein the section is an area that the first steel material needs to pass through to reach the coiler;

[0031] The first estimated processing time periods are accumulated through a primary controller to obtain a first time period.

[0032] In some possible implementations, the steel processing parameter information includes processing speed data and forward slip data, and the first estimated processing time corresponding to the first steel in each work section is determined by the primary controller, and the work section is an area that the first steel needs to pass through to reach the coiler, including:

[0033] Determine the processing speed data and forward sliding amount data corresponding to multiple working sections through the primary controller;

[0034] The first-level controller combines each of the processing speed data with the corresponding forward sliding amount data to obtain the actual moving speed corresponding to the first steel material;

[0035] The preset section length data is divided by the corresponding actual moving speed through the primary controller to obtain the first estimated processing time corresponding to the first steel.

[0036] In some possible implementations, after sending a prohibition instruction to an inlet device through a primary controller to prohibit the first steel from being processed by a steel processing system when the first time length is less than the second time length, the method further includes:

[0037] Sending a start instruction to the entrance device through the primary controller when the first time length is greater than the second time length;

[0038] When the start command is received, the first steel material is processed through the steel material processing system via the inlet device.

[0039] In some possible implementations, after receiving the start instruction and processing the first steel material through the steel material processing system through the inlet device, the method further includes:

[0040] The steel monitoring data is updated through the motion state sensor, and the first steel is used as the second steel.

[0041] In a second aspect, the present application provides a steel processing system, which includes an entrance device, a transportation device, a coiler, a primary controller, a secondary controller and a motion state sensor, wherein the entrance device is used to feed steel into the transportation device, and the transportation device is used to transmit steel in the steel processing system. The motion state sensor is arranged corresponding to each work section of the steel processing system, and the steel processing system implements the steel processing control method described above when it is running.

[0042] The above-mentioned method of the present application determines the first time length when the first steel material currently being processed arrives at the coiler, and the second time length when the second steel material currently being processed leaves the coiler. When the first time length is less than the second time length, the first steel material is prohibited from being processed through the steel production line. After determining the first time length and the second time length, if the first time length is less than the second time length, that is, the time length when the first steel material arrives at the coiler is less than the time length when the second steel material leaves the coiler, it means that the two steel materials may collide with each other. At this time, the first steel material is prohibited from being processed through the steel production line. In this way, the possible processing time of each piece of steel on the production line is calculated separately. When there is a conflict in the time length, the processing of the first steel material is stopped to avoid the two from colliding with each other, thereby reducing the risk of rear-end collision. This can reduce scrap steel caused by rear-end collision and improve production efficiency and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The present application can be better understood from the following description of the specific embodiments of the present application in conjunction with the accompanying drawings, in which:

[0044] Other features, objects and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features.

[0045] Figure 1 It is a flow chart of a steel processing control method provided by an embodiment of the present application;

[0046] Figure 2 is a flow chart of a steel processing control method provided by another embodiment of the present application;

[0047] Figure 3 is a flow chart of a steel processing control method provided by another embodiment of the present application;

[0048] Figure 4 It is a structural schematic diagram of a steel processing system provided in one embodiment of the present application. DETAILED DESCRIPTION

[0049] The features and exemplary embodiments of various aspects of the application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the application. However, it is obvious to those skilled in the art that the application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the application by illustrating the example of the application. The application is by no means limited to any specific configuration and algorithm proposed below, but covers any modification, replacement and improvement of elements, parts and algorithms without departing from the spirit of the application. In the accompanying drawings and the following description, known structures and technologies are not shown to avoid causing unnecessary ambiguity to the application.

[0050] In the hot rolling production line of steel, in order to improve the production line capacity and save costs, it is sometimes necessary to produce steel of different specifications on the same hot rolling production line. In such a case, due to the jump of rolling specifications, different planned specifications and accelerated rolling rhythm, tail-end collision occurs in the layer cooling area (i.e. the area where the strip is cooled), resulting in scrap steel. In addition, even for steel of the same specification, if there is a large temperature difference between the previous piece of steel and the next piece of steel of the same or similar specifications, it is easy to cause tail-end collision and jump stop in the layer cooling area during fast-paced rolling.

[0051] That is to say, the hot-rolled plate mill rolling line improves the rolling rhythm, which often leads to rear-end scrap steel due to different planned specifications and fast rhythm. For example: the first piece of steel has no acceleration control, while the second piece of steel has acceleration control, which leads to the second piece of steel rear-end collision and stop scrap steel in the layer cooling; the thickness of the first piece of steel is thicker than that of the second piece of steel, and when the rolling specification jumps greatly, the second piece of steel rear-end collision and stop scrap steel in the layer cooling; the temperature difference between the front and back of steel of the same or similar specifications is large, and it is easy to rear-end collision and stop scrap steel in the layer cooling when the rhythm is fast.

[0052] The main reason for the above problems is that there are problems with the steel feeding control point of the production line. Since the speed and acceleration rate issued by the control system may be different for each piece of steel, if the difference is not taken into account during processing, the distance between the two pieces of steel may gradually decrease during the processing, increasing the risk of rear-end collision.

[0053] The inventor has studied the above problem and found that if the steel is controlled when it enters the processing system, the possible processing time is calculated for each piece of steel on the production line, and the processing of the steel is stopped when there is a conflict in the time, so as to avoid the rear-end collision of the steel. The risk of rear-end collision can be reduced.

[0054] In this embodiment, the steel processing control method can be executed by the above-mentioned steel processing system. In one embodiment of the steel processing control method of the present application, Figure 1 As shown, the method includes the following steps S101 to S105.

[0055] Step S101: Sending preset steel processing parameter information to the primary controller via the secondary controller.

[0056] The operator of the production line or the system administrator sets or adjusts the corresponding processing parameters on the secondary controller in advance according to the processing requirements of the steel and the production plan. These parameters may include the pressure, rolling speed, temperature, etc. of the rolling mill.

[0057] In a specific implementation, the set processing parameter information is encoded and packaged so that it can be accurately parsed and identified during the transmission process. The set processing parameter information is then sent from the secondary controller to the primary controller through the communication interface.

[0058] As another example, after receiving the processing parameter information sent from the secondary controller, the primary controller can perform data analysis and processing, such as analyzing the data format, verifying the integrity and correctness of the data, to ensure that the parameter information is correctly understood and applied. The analyzed parameter information can also be applied to the control system of the production line.

[0059] Step S102: determining, by means of a primary controller, a first time required for a first steel to reach a coiler based on the steel processing parameter information, wherein the first steel is the steel currently to be processed.

[0060] In the specific implementation, the first-level controller first parses and obtains the steel processing parameter information sent by the second-level controller. According to the steel processing parameter information and the actual situation of the production line, the first-level controller calculates the length of the first steel. The first-level controller uses the length of the first steel and the operating parameters of the coiler and other information to calculate the first time required for the first steel to reach the coiler.

[0061] As another example, the steel processing parameter information sent by the secondary controller may include processing parameters such as rolling speed, roll pressure, temperature, and related information such as the size, length, and weight of the steel.

[0062] Step S103: acquiring motion state information of the second steel material through a motion state sensor and sending it to the primary controller, wherein the motion state information includes position, speed or acceleration information of the second steel material, and the second steel material is the steel material currently being processed.

[0063] In a specific implementation, a motion state sensor of a suitable type is installed on the steel rolling production line. The sensor monitors the motion state of the second steel in real time, and converts the acquired position, speed or acceleration information into a digital signal, which is then sent to the primary controller.

[0064] As another example, verification information may be added during the transmission process to ensure the integrity and accuracy of the data.

[0065] As another example, the acquired motion state information may need to be filtered, amplified, or digitally processed before being transmitted to the primary controller to improve the accuracy and stability of the data.

[0066] As another example, the sensor may be a laser distance sensor, an encoder, a speed sensor or an acceleration sensor, etc. The sensor is usually installed above or on the side of the production line so as to accurately monitor the movement state of the steel.

[0067] Step S104: The primary controller uses the motion state information and the processing flow information to predict the motion trajectory of the second steel material and determine a second time required for the second steel material to leave the coiler.

[0068] In the specific implementation, the first-level controller first collects and integrates the data from various sensors. Based on the collected motion state information and processing flow information, the first-level controller can predict the future motion trajectory of the second steel material according to the current state and past motion data. Based on the predicted motion trajectory, the first-level controller can calculate the time required for the second steel material to leave the coiler.

[0069] As another example, the primary controller continuously receives and processes real-time data from sensors and adjusts and optimizes the prediction results of the motion trajectory according to the actual situation. Specifically, this can be achieved by updating the parameters of the mathematical model in real time, correcting the prediction error, or applying a feedback control strategy.

[0070] Step S105: When the first time length is shorter than the second time length, a prohibition instruction is sent to the entrance device via the primary controller to prohibit the first steel from being processed by the steel processing system.

[0071] In a specific implementation, the primary controller compares the processing time of the first steel material and the second steel material based on the collected data. If the processing time of the first steel material is expected to be less than that of the second steel material, the primary controller generates a signal or command of a prohibition instruction based on the judgment result. The primary controller sends the generated prohibition instruction to the entrance device through the communication interface connected to the entrance device. After receiving the prohibition instruction from the primary controller, the entrance device immediately executes the corresponding operation to stop the feeding process of the first steel material.

[0072] As another example, the specific prohibition instruction sent to the entrance device may be, for example, shutting down the conveyor belt, stopping the feeding robot arm, etc., so as to prevent the first steel material from continuing to enter the steel material processing system.

[0073] The above-mentioned method of the present application determines the first time length when the first steel material currently being processed arrives at the coiler, and the second time length when the second steel material currently being processed leaves the coiler. When the first time length is less than the second time length, the first steel material is prohibited from being processed through the steel production line. After determining the first time length and the second time length, if the first time length is less than the second time length, that is, the time length when the first steel material arrives at the coiler is less than the time length when the second steel material leaves the coiler, it means that the two steel materials may collide with each other. At this time, the first steel material is prohibited from being processed through the steel production line. In this way, the possible processing time of each piece of steel on the production line is calculated separately. When there is a conflict in the time length, the processing of the first steel material is stopped to avoid the two from colliding with each other, thereby reducing the risk of rear-end collision. This can reduce scrap steel caused by rear-end collision and improve production efficiency and economic benefits.

[0074] In order to obtain a more accurate second duration, in some implementations, such as Figure 2As shown, the S104 may include the following steps S201 to S203.

[0075] Step S201: The primary controller predicts the movement trajectory of the second steel in each section based on the motion state information and processing flow information corresponding to each section, where the second steel needs to be processed after leaving the coiler.

[0076] In the specific implementation, sensors are installed in each section to monitor the movement state of the second steel material. After the primary controller receives the movement state information and processing flow information monitored by the sensor, it will process and analyze the data. By performing time series analysis on the position, speed and other data of the second steel material in each section, its movement trajectory can be inferred.

[0077] As another example, the primary controller uses a prediction algorithm based on the motion state information of each section and the processing flow information to predict the motion trajectory of the second steel in each section. The specific prediction algorithm can be obtained through mathematical modeling, machine learning or intelligent control algorithm.

[0078] Step S202: obtaining a corresponding second estimated processing time according to each of the predicted motion trajectories through a primary controller.

[0079] In a specific implementation, the primary controller associates the predicted motion trajectory of the second steel material with specific process parameters. Then, the primary controller uses the predicted motion trajectory and the process parameters associated therewith to calculate the corresponding second estimated processing time through a processing time prediction algorithm.

[0080] As another example, during the production process, process parameters and the motion state of steel may change, and the prediction model and algorithm need to be adjusted in real time to reflect the actual situation. The primary controller needs to continuously update the calculation results of the predicted processing time based on the real-time collected data.

[0081] Step S203: The first-level controller accumulates the plurality of second estimated processing times to obtain a second time.

[0082] In a specific implementation, the first-level controller obtains the estimated processing time of each work section, and then the first-level controller accumulates the obtained estimated processing time of each work section to obtain the second time.

[0083] As another example, the above-mentioned accumulation process can be implemented in a primary controller by adding the estimated processing time of each work section through a simple addition operation.

[0084] The above-mentioned method of the present application predicts the motion trajectory of the second steel material in each section by respectively targeting the motion state information and processing flow information corresponding to each different section, thereby obtaining the estimated processing time of the second steel material in different sections according to each predicted motion trajectory, and then accumulating multiple second estimated processing times to obtain the total second time. By estimating the processing time according to the information of each different section, the error caused by the estimation can be reduced, and a more accurate second time can be obtained.

[0085] In order to further reduce the risk of rear-end collision, in some embodiments, the above S103 may include steps A1 to B1:

[0086] Step A1: Obtaining the tail tracking data corresponding to the second steel material in each of the sections through a motion state sensor.

[0087] In a specific implementation, the motion state sensor will continuously monitor the tail position of the second steel material and collect these data. The tail tracking data may include information such as the position, speed, acceleration, etc. of the steel material, which may reflect the motion state of the steel material in the section.

[0088] As another example, the collected tail tracking data is processed through processing steps such as data filtering, noise removal, and coordinate conversion to ensure the accuracy and reliability of the data.

[0089] Step B1: sending the tail tracking data to the primary controller via a motion state sensor.

[0090] In the specific implementation, the tail tracking data is sent to the primary controller through a communication network or a dedicated interface. During the data transmission process, the communication protocol needs to be defined to ensure that the sensor and the primary controller can correctly parse and process the data.

[0091] The above method of the present application uses the motion state sensor to obtain the tail tracking data of the second steel material in each section, and sends the tail tracking data to the primary controller. It can be understood that when a rear-end collision occurs, it is the tail of the second steel plate that collides with the first steel plate. Therefore, limiting the data used for calculation by the primary controller to the tail tracking data of the second steel material can further reduce the risk of rear-end collision.

[0092] In order to obtain an accurate second estimated processing time, in some embodiments, the above S201 may include steps A2 to C2:

[0093] Step A2: determining the current motion characteristics of the second steel material based on the tail tracking data corresponding to each section through the primary controller.

[0094] In the specific implementation, the first-level controller receives the tail tracking data sent from the sensors of each section. Then the first-level controller processes the data by filtering, interpolating and fitting to eliminate noise. The first-level controller extracts the current motion characteristics of the second steel material based on the processed data.

[0095] Step B2: establishing a motion model of the second steel material according to the current motion characteristics and processing flow information of the second steel material through the primary controller.

[0096] In a specific implementation, the first-level controller obtains information about the current processing flow, and then establishes a corresponding mathematical model to describe the movement law of the steel during the rolling process based on the collected motion characteristic data and processing flow information of the second steel.

[0097] As another example, the specific mathematical model may be a Newtonian mechanics model, a kinematics model, a dynamics model, or the like.

[0098] As another example, the primary controller can use experimental testing, model fitting, and parameter optimization to identify and calibrate the parameters of the mathematical model to ensure that the model can accurately describe the actual steel movement.

[0099] Step C2: calculating the corresponding motion trajectory according to the motion model of the second steel material through the primary controller.

[0100] In the specific implementation, using the established motion model of the second steel, the first-level controller can predict the motion trajectory of the steel during the rolling process through model solving based on the current processing flow information and the initial state of the steel.

[0101] Accordingly, the above S202 may include steps A3 to B3:

[0102] Step A3: Determine the corresponding moving speed of the second steel material according to the motion trajectory through the primary controller.

[0103] In a specific implementation, the first-level controller solves and obtains the corresponding average moving speed of the second steel material at this time based on the obtained motion trajectory information.

[0104] Step B3: Divide the preset section length data by the corresponding moving speed of the second steel material through the primary controller to obtain the second estimated processing time corresponding to the second steel material.

[0105] In a steel processing production line, the entire processing process is usually divided into multiple sections, each section corresponding to a processing area of ​​a section of steel or a specific processing operation. The length of these sections is usually determined in advance by production plans or process requirements.

[0106] In a specific implementation, after determining the second steel material moving speed, the controller divides the preset section length data by the corresponding second steel material moving speed to calculate the estimated processing time of each section.

[0107] The above method of the present application determines the current motion characteristics of the second steel material based on the tail tracking data corresponding to each section through the primary controller, and then establishes the motion model of the second steel material according to the current motion characteristics of the second steel material and the processing flow information. Through this motion model, the corresponding motion trajectory is calculated, and then based on this motion trajectory, the corresponding second steel material moving speed is determined, so as to calculate the second estimated processing time. It is possible to obtain an accurate second estimated processing time.

[0108] In order to prevent the first steel plate from waiting for the coiler to be ready on the production line, in some embodiments, before the above S203, the above method may further include:

[0109] The preset ready time of the coiler is obtained through the primary controller.

[0110] In production planning, the preset readiness time of each coiler is usually predetermined. This preset time may be affected by many factors, including equipment switching time, line change time, parameter adjustment time, etc. These parameters can be determined based on historical data, equipment performance and process requirements.

[0111] In a specific implementation, the first-level controller obtains the preset ready time of the coiler set in the preset production plan.

[0112] Accordingly, the above S203 may include:

[0113] The first-level controller accumulates multiple second estimated processing times and the preset ready time to obtain a second time.

[0114] In a specific implementation, the first-level controller adds the accumulated second estimated processing time and the preset ready time to obtain the second time.

[0115] The above method of the present application obtains the preset ready time of the coiler through the primary controller, and then adds the preset ready time of the coiler to the second time. The time when the coiler is ready is taken into consideration, so that the first steel plate does not need to wait for the coiler to be ready on the production line.

[0116] To get a more accurate first duration, refer to Figure 3 In some implementations, the above S102 may include steps S301 to S302:

[0117] Step S301: determining, by a primary controller, a first estimated processing time corresponding to each work section of the first steel material, wherein the work section is an area that the first steel material needs to pass through to reach a coiler.

[0118] In a specific implementation, the first-level controller determines the estimated processing time of the first steel in each work section according to the preset steel processing parameter information and work section division.

[0119] Step S302: The first-level controller accumulates the plurality of first estimated processing times to obtain a first time.

[0120] In a specific implementation, the first-level controller accumulates the first estimated processing time of each work section, and uses the accumulated first estimated processing time as the first time.

[0121] The above method of the present application determines the first estimated processing time corresponding to the first steel material in each work section through the primary controller, and then accumulates multiple first estimated processing times through the primary controller to obtain the first time. By estimating the processing time according to the information of each different work section, the error caused by the estimation can be reduced, and a more accurate first time can be obtained.

[0122] In order to accurately obtain the first estimated processing time, in some embodiments, the steel processing parameter information includes processing speed data and forward sliding amount data, and the above S301 may include steps A4 to C4.

[0123] Step A4: Determine the processing speed data and forward slip data corresponding to the multiple working sections through the primary controller.

[0124] In a specific implementation, the first-level controller obtains the processing speed data and forward slip data corresponding to each work section sent by the second-level controller.

[0125] Step B4: combining each of the processing speed data with the corresponding forward sliding amount data through a primary controller to obtain an actual moving speed corresponding to the first steel material.

[0126] In the specific implementation, the primary controller needs to ensure that the processing speed data and forward slip data collected from each section are synchronized, that is, they are corresponding in time. Then, the processing speed data of each section is matched with the corresponding forward slip data to ensure that they are data at the same time point. Using the matched processing speed data and forward slip data, the actual moving speed of the first steel in each section is calculated.

[0127] As another example, the primary controller may filter, smooth or correct the acquired data to avoid the influence of uncertainties such as noise or interference to ensure accurate and reliable results.

[0128] Step C4: Dividing the preset section length data by the corresponding actual moving speed through the primary controller to obtain a first estimated processing time corresponding to the first steel material.

[0129] In a specific implementation, the first-level controller obtains the preset length data of each work section, and then divides the preset length data of each work section by the corresponding actual moving speed to obtain the estimated processing time of the first steel in each work section.

[0130] The above method of the present application determines the processing speed data and forward sliding amount data corresponding to multiple sections through a primary controller, and combines the two data to obtain the actual moving speed corresponding to the first steel material, and then divides the preset section length data by the corresponding actual moving speed to obtain the first estimated processing time corresponding to the first steel material. The first estimated processing time can be accurately obtained.

[0131] In order to ensure the continuity of processing, in some embodiments, after the above S105, the method may further include steps A5 to B5.

[0132] Step A5: When the first time period is greater than the second time period, the primary controller sends a start instruction to the entrance device.

[0133] In a specific implementation, the primary controller continuously monitors the first time duration of the first steel material at the inlet device and the second time duration of the second steel material to complete processing, and determines whether the first time duration is greater than the second time duration. When the determination condition is met, the primary controller sends a start instruction to the inlet device.

[0134] As another example, the primary controller may also continuously monitor the status of the inlet device to ensure that the start instruction is executed correctly.

[0135] Step B5: When the start instruction is received, the first steel material is processed by the steel material processing system through the inlet device.

[0136] In a specific implementation, after receiving the start command, the entrance device will start the corresponding conveying system, take the first steel material from the storage area or the front equipment, and convey it to the processing start position of the steel material processing system, so that the first steel material enters the steel material processing system. Then, each process equipment in the steel material processing system starts to process it.

[0137] In the above method of the present application, when the first time length is greater than the second time length, the primary controller sends a start instruction to the entrance device, so that the entrance device sends the first steel material into the steel material processing system. The first steel material can be processed after the conditions are met, thereby ensuring the continuity of the processing.

[0138] In order to update the steel monitoring object, in some embodiments, after the first steel is processed by the steel processing system through the inlet device in the case of receiving the start instruction, the method may further include:

[0139] The steel monitoring data is updated through the motion state sensor, and the first steel is used as the second steel.

[0140] The above method of the present application allows the motion state sensor to update the steel monitoring data after the first steel enters the steel processing system for processing, and uses the previous first steel as the new second steel, thereby updating the steel monitoring object.

[0141] In one embodiment of the present application, reference may be made to Figure 4 , Figure 4 A schematic diagram of a steel processing system provided in an embodiment of the present application. The steel processing system includes an inlet device, a transport device, a coiler, a primary controller, a secondary controller, and a motion state sensor, wherein the inlet device is used to feed steel into the transport device, the transport device is used to transport steel in the steel processing system, the motion state sensor is correspondingly arranged in each section of the steel processing system, and the steel processing system implements the steel processing control method described above when it is running.

[0142] Among them, FMHMD represents the finishing hot metal detector, FET represents the finishing entrance pyrometer, FMZ represents the finishing zone tracking area, F1 to F7 represent the first finishing mill to the seventh finishing mill respectively, ROTZ01 to ROTZ10 represent the first group tracking area of ​​the layer cold roller to the tenth group tracking area of ​​the layer cold roller respectively, and DC represents the coiler.

[0143] In this steel processing system, the information sent by the secondary controller is received by the primary controller to each processing area, that is, the rolling speed and forward slip amount of the section, so as to calculate the sum of the first time length corresponding to the first steel in each section. At the same time, according to the tail tracking of the second steel actually rolled in the current finishing rolling, the time when the second steel leaves the coiler is calculated, and the coiler equipment readiness time is calculated to obtain the second time length. By calculating the time difference between the first time length and the second time length, when it is less than zero, it is considered that there may be a rear-end collision.

[0144] The above-mentioned method of the present application determines the first time length when the first steel material currently being processed arrives at the coiler, and the second time length when the second steel material currently being processed leaves the coiler. When the first time length is less than the second time length, the first steel material is prohibited from being processed through the steel production line. After determining the first time length and the second time length, if the first time length is less than the second time length, that is, the time length when the first steel material arrives at the coiler is less than the time length when the second steel material leaves the coiler, it means that the two steel materials may collide with each other. At this time, the first steel material is prohibited from being processed through the steel production line. In this way, the possible processing time of each piece of steel on the production line is calculated separately. When there is a conflict in the time length, the processing of the first steel material is stopped to avoid the two from colliding with each other, thereby reducing the risk of rear-end collision. This can reduce scrap steel caused by rear-end collision and improve production efficiency and economic benefits.

[0145] However, it should be clear that the present application is not limited to the specific configurations and processes described above and shown in the figures. Moreover, for the sake of brevity, a detailed description of known methods and techniques is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present application is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present application.

[0146] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiment, or in a different order from the embodiment, or several steps can be performed simultaneously.

[0147] The application can be implemented in other specific forms without departing from its spirit and essential characteristics. For example, the algorithm described in the specific embodiment can be modified, and the system architecture does not depart from the basic spirit of the application. Therefore, the current embodiment is regarded as exemplary and non-restrictive in all aspects, and the scope of the application is defined by the attached claims rather than the above description, and all changes falling within the meaning of the claims and the scope of equivalents are thereby included in the scope of the application.

[0148] Those skilled in the art should understand that the above embodiments are exemplary rather than restrictive. Different technical features appearing in different embodiments can be combined to achieve beneficial effects. Based on the study of the drawings, the specification and the claims, those skilled in the art should be able to understand and implement other variations of the disclosed embodiments. In the claims, the term "comprising" does not exclude other devices or steps; the indefinite article "a" does not exclude a plurality; the terms "first" and "second" are used to indicate names rather than to indicate any specific order. Any figure marks in the claims should not be understood as limiting the scope of protection. The functions of multiple parts appearing in the claims can be implemented by a single hardware or software module. The appearance of certain technical features in different dependent claims does not mean that these technical features cannot be combined to achieve beneficial effects.

Claims

1. A steel processing control method, characterized in that: The method is applied to a steel processing system, which includes an inlet device, a transport device, a coiler, a primary controller, a secondary controller, and a motion state sensor. The inlet device is used to feed steel into the transport device, and the transport device is used to transport steel in the steel processing system. The motion state sensor is correspondingly arranged in each section of the steel processing system. The method includes: Sending preset steel processing parameter information to the primary controller via the secondary controller; Determining, by a primary controller based on the steel processing parameter information, a first time required for a first steel to reach a coiler, wherein the first steel is the steel currently to be processed; Acquire motion state information of the second steel material through a motion state sensor and send it to the primary controller, wherein the motion state information includes position, speed or acceleration information of the second steel material, and the second steel material is the steel material currently being processed; The primary controller uses the motion state information and the processing flow information to predict the motion trajectory of the second steel material, and determines a second time required for the second steel material to leave the coiler; When the first time length is shorter than the second time length, a prohibition instruction is sent to the entrance device through the primary controller to prohibit the first steel material from being processed by the steel material processing system.

2. The steel material processing control method according to claim 1, characterized in that: The first-level controller predicts the motion trajectory of the second steel material by using the motion state information and the processing flow information to determine the second time required for the second steel material to leave the coiler, including: Predicting, by means of a primary controller, the movement trajectory of the second steel material in each section based on the movement state information and processing flow information corresponding to each section, wherein the section is the section where the second steel material needs to be processed after leaving the coiler; Obtaining, by the primary controller, a corresponding second estimated processing time according to each of the predicted motion trajectories; The first-level controller accumulates multiple second estimated processing times to obtain a second time.

3. The steel material processing control method according to claim 2, characterized in that: The step of obtaining the motion state information of the second steel material through the motion state sensor and sending the information to the primary controller includes: Acquiring tail tracking data corresponding to the second steel material in each of the sections through a motion state sensor; The tail tracking data is sent to the primary controller via a motion state sensor.

4. The steel material processing control method according to claim 3, characterized in that: The first-level controller predicts the motion trajectory of the second steel material in each section based on the motion state information and processing flow information corresponding to each section, including: Determining the current motion characteristics of the second steel material based on the tail tracking data corresponding to each section by the primary controller; Establishing a motion model of the second steel material according to the current motion characteristics and processing flow information of the second steel material through the primary controller; Calculating a corresponding motion trajectory according to the motion model of the second steel material by a primary controller; Obtaining a corresponding second estimated processing time according to each of the predicted motion trajectories by the primary controller includes: Determining the corresponding moving speed of the second steel material according to the motion trajectory by a primary controller; The preset section length data is divided by the corresponding moving speed of the second steel material through the primary controller to obtain the second estimated processing time corresponding to the second steel material.

5. The steel material processing control method according to claim 2, characterized in that: Before accumulating the plurality of second estimated processing times by the primary controller to obtain the second time, the method further includes: Obtain the preset ready time of the coiler through the primary controller; The step of accumulating the plurality of second estimated processing times by the primary controller to obtain the second time duration comprises: The first-level controller accumulates multiple second estimated processing times and the preset ready time to obtain a second time.

6. The steel material processing control method according to claim 1, characterized in that: The first controller determines the first time required for the first steel to reach the coiler based on the steel processing parameter information, including: Determine, by a primary controller, a first estimated processing time corresponding to each section of the first steel material, wherein the section is an area that the first steel material needs to pass through to reach the coiler; The first estimated processing time periods are accumulated through a primary controller to obtain a first time period.

7. The steel material processing control method according to claim 6, characterized in that: The steel material processing parameter information includes processing speed data and forward slip data. The first estimated processing time corresponding to the first steel material in each working section is determined by the primary controller. The working section is the area that the first steel material needs to pass through to reach the coiler, including: Determine the processing speed data and forward sliding amount data corresponding to multiple working sections through the primary controller; The first-level controller combines each of the processing speed data with the corresponding forward sliding amount data to obtain the actual moving speed corresponding to the first steel material; The preset section length data is divided by the corresponding actual moving speed through the primary controller to obtain the first estimated processing time corresponding to the first steel.

8. The steel material processing control method according to any one of claims 1 to 7, characterized in that: After sending a prohibition instruction to the entrance device through the primary controller to prohibit the first steel from being processed by the steel processing system when the first time length is less than the second time length, the method further includes: Sending a start instruction to the entrance device through the primary controller when the first time length is greater than the second time length; When the start command is received, the first steel material is processed through the steel material processing system via the inlet device.

9. The steel material processing control method according to claim 8, characterized in that: In the case where the start instruction is received, after the first steel is processed by the steel processing system through the inlet device, the method further includes: The steel monitoring data is updated through the motion state sensor, and the first steel is used as the second steel.

10. A steel processing system, characterized in that: The steel processing system includes an entrance device, a transportation device, a coiler, a primary controller, a secondary controller and a motion state sensor. The entrance device is used to deliver steel into the transportation device. The transportation device is used to transmit steel in the steel processing system. The motion state sensor is correspondingly arranged in each section of the steel processing system. When the steel processing system is in operation, the steel processing control method as described in any one of claims 1 to 9 is implemented.

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