Blank conveying path automatic identification method based on multi-state monitoring

Abstract

The invention discloses an automatic blank conveying path identification method based on multi-state monitoring, which comprises the following steps that basic paths of a blank conveying path are determined, and the basic paths comprise a hot conveying path and a cold conveying path; acquiring the running state of the conveying equipment and the state information of a plurality of position material detectors; according to the collected state information, multiple pieces of transmission state data are generated through state logic judgment and time delay control; according to the value of the conveying state data, the conveying path of the blank is automatically identified; and updating and recording state information of the blank conveying path in real time, and feeding back the state information to the MES system to optimize production scheduling. According to the method, the conveying path of the blank can be automatically and accurately identified, and the identification result is fed back to the MES system and other information tracking management systems in real time, so that accurate closed loop of data and information is ensured, and the system is guaranteed to optimize production scheduling.

Description

Technical Field

[0001] The present invention relates to the technical field of steel manufacturing, and in particular to a method for automatically identifying a billet conveying path based on multi-state monitoring. Background Art

[0002] In the steel production process, after the billet is produced in the continuous casting machine, it can be sent to the heating furnace for heating by hot or cold delivery according to its temperature state and production plan.

[0003] Hot delivery refers to the process whereby billets, after cooling through the continuous casting machine, are directly heated in a heating furnace while maintaining a relatively high temperature (typically above 700°C). Hot delivery billets are coded during the continuous casting process, recording information such as production batch, furnace number, composition, and continuous casting machine run number. This enables real-time billet tracking and facilitates closed-loop data integration within the MES system.

[0004] Cold delivery refers to the process by which billets are cooled on the continuous casting cooling bed through methods such as air blowing and water spraying, then stored in an indoor billet yard. Transfer vehicles and cranes then transport the cold billets to the reheating furnace. During the storage, transfer, and lifting processes, cold delivery cannot accurately match production information such as coding, batch, and furnace numbers, making closed-loop tracking of billet information impossible. Therefore, MES systems or other information tracking and management systems must block relevant information generated during the cold delivery process.

[0005] Especially in some special cases, in order to ensure the production rhythm, the heating furnace adopts a production mode of mixed hot and cold delivery into the furnace. The system is prone to errors in the process of distinguishing hot and cold delivery billets, resulting in data output problems in the MES system or other information tracking management systems, affecting the normal execution of the system business processes.

[0006] The main reason for the system's errors in distinguishing between hot-delivered and cold-delivered billets is that it simply distinguishes based on the initial temperature of the billets. When the temperature of the billets transported by cars or cross-carts is still very high, the system will make identification errors. In order to improve the accuracy of the system in distinguishing between hot-delivered and cold-delivered billets, an automated billet conveying path identification method is needed. Summary of the Invention

[0007] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a method for automatically identifying the conveying path of the blank based on multi-state monitoring, which can automatically and accurately identify the conveying path of the blank and feed back the identification results to the MES system and other information tracking and management systems in real time to ensure the accurate closed loop of data and information, ensure the system optimizes production scheduling, and realize efficient management of the production process.

[0008] The technical solution adopted by the present invention to solve the technical problem is: a method for automatically identifying a blank conveying path based on multi-state monitoring, comprising the following steps:

[0009] Determining a basic path for the blank conveying path, wherein the basic path includes a hot conveying path and a cold conveying path;

[0010] Obtain the operating status of the conveying equipment and the status information of material detectors at multiple locations;

[0011] Based on the collected status information, multiple conveying status data are generated through status logic judgment and time delay control;

[0012] Automatically identify the conveying path of the blank according to the value of the conveying status data;

[0013] Update and record the status information of the billet conveying path in real time, and feed it back to the MES system to optimize production scheduling.

[0014] As a further improvement of the present invention, the acquisition of the operating status of the conveying equipment and the status information of the material detectors at multiple locations includes:

[0015] The operating status of the conveying equipment and the status information of material detectors at different positions are collected in real time by sensors and detectors arranged on the conveying path. The sensors and detectors on the conveying path include cold metal detectors, encoders and proximity switches.

[0016] As a further improvement of the present invention, the acquisition of the operating status of the conveying equipment and the status information of the material detectors at multiple locations further includes:

[0017] The status information includes the optical inspection signal Con1 of the weighing roller, the signal Con2 that there is steel at the lifting chain position, the signal Con3 that there is steel at the hot delivery receiving roller position, the signal Con4 that the hot delivery receiving roller has a 1-second forward rotation delay, the signal Con5 that there is steel at the cold billet receiving roller position, the signal Con6 that the cold billet receiving roller has a 3-second forward rotation delay, the signal Con7 that the weighing roller has a 4-second forward rotation delay, the signal Con8 that there is steel at the weighing roller position, the furnace positioning start signal Con9, and the signal Con10 that there is steel on the cold billet receiving roller and the cold billet receiving roller has a 3-second forward rotation delay.

[0018] As a further improvement of the present invention: the time delay control refers to controlling the state transition of the blank during the conveying process by setting the connection signal with different time delays.

[0019] The state logic judgment refers to logically combining multiple state signals to identify the basic path of the conveying path.

[0020] As a further improvement of the present invention: the generating of multiple transport status data by state logic judgment and time delay control includes:

[0021] The transport state data includes a first state State1 , a second state State2 , a third state State3 and a fourth state State4 .

[0022] As a further improvement of the present invention: the step of generating a plurality of transport status data through state logic judgment and time delay control based on the collected status information further comprises:

[0023] When state1 is 0 and there is steel signal Con2 at the elevator position is 1, State1 is 1;

[0024] When State2 is 1 and the hot delivery roller conveyor forward rotation delay 1s connection signal con4 is 1, State1 is 0.

[0025] As a further improvement of the present invention: the step of generating a plurality of transport status data through state logic judgment and time delay control based on the collected status information further comprises:

[0026] When state1 is 1 and the steel signal at the hot delivery roller is 1 (Con3=1) and the hot delivery roller forward rotation delay 1 second connection signal Con4 is 1, State2 is 1;

[0027] When State3 is 1, and State2=1, and the weighing roller optical detection signal Con1 is 1, and the steel signal Con5 at the cold billet receiving roller position is 1, and the cold billet receiving roller forward rotation delay 3s connection signal Con6 is 1, and the weighing roller forward rotation delay 4s connection signal con7 is 1, State2 is 0.

[0028] As a further improvement of the present invention: the step of generating a plurality of transport status data through state logic judgment and time delay control based on the collected status information further comprises:

[0029] When State3 is 0, and State2 is 1, and the weighing roller optical detection signal Con1 is 1, and the cold billet receiving roller position steel signal Con5 is 1, and the cold billet receiving roller forward delay 3 seconds connection signal Con6 is 1, and the weighing roller forward delay 4 seconds connection signal Con7 is 1, State3 is 1;

[0030] When state3 is 1 and the furnace positioning start signal Con9 is 1, State3 is 0.

[0031] As a further improvement of the present invention: the step of generating a plurality of transport status data through state logic judgment and time delay control based on the collected status information further comprises:

[0032] When state2 is 0, state3 is 0, and state4 is 0, and there is steel signal Con5 at the cold billet receiving roller, and there is steel at the cold billet receiving roller, and the cold billet receiving roller forward rotation delay 3 seconds connection signal Con10 is 1, State4 is 1;

[0033] When state4 is 1 and the furnace positioning start signal Con9 is 1, State4 is 0.

[0034] As a further improvement of the present invention, the automatic identification of the conveying path of the blank according to the value of the conveying status data includes:

[0035] When State3 is 1, the blank conveying path is identified as a hot conveying path;

[0036] When State4 is 1, the blank conveying path is identified as a cold conveying path.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] The present invention provides an automatic identification method for the blank conveying path based on multi-state monitoring, which is used to distinguish between hot delivery and cold delivery of the blank conveying path. Through automated technical means, the accuracy and efficiency of the blank conveying path identification are improved. By monitoring and analyzing the position status of the blank during the conveying process, it is determined whether the blank conveying path is a hot delivery path or a cold delivery path. By updating and recording the status information of the blank conveying path in real time, and feeding it back to the MES system and other information tracking management systems, production scheduling is optimized to achieve efficient management of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 Schematic diagram of the method of the present invention.

[0040] Figure 2 Generate a schematic diagram for the state of the invention. DETAILED DESCRIPTION

[0041] In order to enable a clear and complete understanding of the technical solution, the present invention is further described in conjunction with the embodiments and drawings. Obviously, the described embodiments are only some embodiments of the present invention, and all other embodiments obtained by technical personnel in the relevant field without making creative work are within the scope of protection of the present invention.

[0042] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0043] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used in the specification and appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0044] It should be further understood that the term "and / or" used in the present description and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0045] An embodiment of the present invention provides a method for automatically identifying the billet conveying path based on multi-state monitoring. In this embodiment, after the billet is produced in the continuous casting machine, it can be sent to the heating furnace for heating in a hot or cold manner according to its temperature state and production plan. During the conveying process, a series of sensors and detectors on the conveying path are used to obtain conveying path sensing information. When the sensors and detectors have no signal, the output value is 1, and when the sensors and detectors have a signal, the output value is 0. Based on the generated state value, the billet conveying path is automatically identified. The direct correspondence between the state value and the conveying path makes the system respond more quickly. The present invention includes the following steps:

[0046] S100, determining a basic path for the blank conveying path, wherein the basic path includes a hot conveying path and a cold conveying path;

[0047] The hot delivery path includes hot delivery roller, steel separator, lifting chain, hot delivery receiving roller, cold delivery receiving roller and weighing roller, and finally enters the heating furnace through the furnace cantilever roller;

[0048] The cold delivery path includes the billet crane, loading platform, cold delivery receiving roller and weighing roller, and finally enters the heating furnace through the furnace cantilever roller.

[0049] S200, obtaining the operating status of the conveying equipment and status information of material detectors at multiple locations;

[0050] The operating status of the conveying equipment and the status information of material detectors at different positions are collected in real time by sensors and detectors arranged on the conveying path. The sensors and detectors on the conveying path include cold metal detectors, encoders and proximity switches.

[0051] That is to say, sensors and detectors are respectively set on each component of the hot delivery path and the cold delivery path to obtain signals at corresponding positions, so that the position status of the billet during the conveying process can be monitored and analyzed to determine whether the conveying path of the billet is a hot delivery path or a cold delivery path.

[0052] The status information includes but is not limited to the status information including the weighing roller optical detection signal C, the steel signal at the lifting chain position, the steel signal at the hot delivery receiving roller position, the hot delivery receiving roller forward rotation delay 1 second connection signal, the steel signal at the cold billet receiving roller position, the cold billet receiving roller forward rotation delay 3 seconds connection signal, the weighing roller forward rotation delay 4 seconds connection signal, the steel signal at the weighing roller position, the furnace positioning start signal, and the steel at the cold billet receiving roller and the cold billet receiving roller forward rotation delay 3 seconds connection signal. The examples in which this method has been put into practical use are mainly the following 10 conditions:

[0053] Con1: weighing roller optical detection signal;

[0054] Con2: There is a steel signal at the lifting chain position;

[0055] Con3: There is a steel signal at the hot delivery roller position;

[0056] Con4: The hot delivery roller conveyor rotates forward for 1 second and then switches on the signal;

[0057] Con5: There is a steel signal at the cold billet receiving roller position;

[0058] Con6: The cold billet receiving roller conveyor rotates forward for 3 seconds and then switches on the signal;

[0059] Con7: The weighing roller forward rotation delay is 4 seconds to connect the signal;

[0060] Con8: There is steel signal at the weighing roller position;

[0061] Con9: furnace positioning start signal;

[0062] Con10: There is steel on the cold billet receiving roller and the cold billet receiving roller rotates forward for 3 seconds to connect the signal.

[0063] S300, generating multiple transport status data through state logic judgment and time delay control based on the collected status information;

[0064] The time delay control means that by setting the connection signal with different time delays, the state transition of the blank during the conveying process can be more accurately controlled.

[0065] The state logic judgment refers to logically combining multiple state signals to identify the basic path of the conveying path, thereby improving the accuracy and reliability of path identification.

[0066] The generating of a plurality of conveying status data by state logic judgment and time delay control includes:

[0067] The transport state data includes a first state State1 , a second state State2 , a third state State3 and a fourth state State4 .

[0068] The state logic combination generates four states (State1--State4) based on 10 state conditions.

[0069] The conditions for generating the states State1 to State4 are as follows:

[0070] The condition for State1 to be 1 is that state1 is 0 and the steel signal at the elevator position is 1 (Con2=1);

[0071] The condition for State2 to be 1 is that state1 is 1 and the steel signal at the hot delivery roller is 1 (Con3=1) and the hot delivery roller forward delay 1 second connection signal is 1 (Con4=1);

[0072] The condition for State3 to be 1 is that State3 is 0 and State2 is 1 and the optical detection signal of the weighing roller is 1 (Con1=1) and the steel signal at the cold billet receiving roller position is 1 (Con5=1) and the forward rotation delay of the cold billet receiving roller for 3 seconds is 1 (Con6=1) and the forward rotation delay of the weighing roller for 4 seconds is 1 (Con7=1);

[0073] The condition for State4 to be 1 is that state2 is 0, state3 is 0, and state4 is 0, and the signal that there is steel at the cold billet receiving roller position is 1 (Con5=1), and there is steel on the cold billet receiving roller, and the forward rotation delay of the cold billet receiving roller is 3 seconds and the connection signal is 1 (Con10=1).

[0074] The condition for State1 to be 0 is that State2 is 1 and the forward rotation delay of the hot delivery receiving roller is 1s and the connection signal is 1 (con4=1).

[0075] The condition for State2 to be 0 is that State3 is 1 and State2=1 and the optical detection signal of the weighing roller is 1 (Con1=1) and the steel signal at the cold billet receiving roller position is 1 (Con5=1) and the forward delay 3s connection signal of the cold billet receiving roller is 1 (Con6=1) and the forward delay 4s connection signal of the weighing roller is 1 (con7=1).

[0076] The condition for State3 to be 0 is that state3 is 1 and the furnace positioning start signal is 1 (Con9=1).

[0077] The condition for State4 to be 0 is that state4 is 1 and the furnace positioning start signal is 1 (Con9=1).

[0078] S400, automatically identifying the conveying path of the blank according to the value of the conveying status data;

[0079] The conveying path of the blank is automatically identified based on the values of the generated conveying state data. When State3 is 1, it is identified as a hot conveying path, and when State4 is 1, it is identified as a cold conveying path. The multi-state automated path identification results improve efficiency and accuracy. The direct correspondence between the state value and the conveying path makes the system respond more quickly.

[0080] S400, updates and records the status information of the blank conveying path in real time, and feeds it back to the MES system to optimize production scheduling.

[0081] The identification results are fed back to the MES system in real time, and production scheduling is optimized based on the path identification results to achieve reasonable allocation of resources and efficient management of production processes.

[0082] The present invention proposes an automatic identification method for the blank conveying path based on multi-state monitoring, which improves the accuracy and efficiency of the blank conveying path identification through automated technical means. The method monitors and analyzes the position status of the blank during the conveying process to determine whether the blank conveying path is a hot delivery path or a cold delivery path. The method updates and records the status information of the blank conveying path in real time, and feeds it back to the MES system and other information tracking management systems to optimize production scheduling and realize efficient management of the production process.

[0083] In summary, after reading the present invention document, ordinary technicians in this field can make various other corresponding transformation schemes based on the technical solutions and technical concepts of the present invention without creative mental work, and all of them fall within the scope of protection of the present invention.

Claims

1. A method for automatically identifying a blank conveying path based on multi-state monitoring, characterized in that: The following steps are involved: Determining a basic path for the blank conveying path, wherein the basic path includes a hot conveying path and a cold conveying path; Obtain the operating status of the conveying equipment and the status information of material detectors at multiple locations; Based on the collected status information, multiple conveying status data are generated through status logic judgment and time delay control; Automatically identify the conveying path of the blank according to the value of the conveying status data; Update and record the status information of the billet conveying path in real time, and feed it back to the MES system to optimize production scheduling.

2. The method for automatically identifying a blank conveying path based on multi-state monitoring according to claim 1, characterized in that: The acquisition of the operating status of the conveying equipment and the status information of the material detectors at multiple locations includes: The operating status of the conveying equipment and the status information of material detectors at different positions are collected in real time by sensors and detectors arranged on the conveying path. The sensors and detectors on the conveying path include cold metal detectors, encoders and proximity switches.

3. The method for automatically identifying a blank conveying path based on multi-state monitoring according to claim 2, characterized in that: The obtaining of the operating status of the conveying equipment and the status information of the material detectors at multiple locations further includes: The status information includes the optical inspection signal Con1 of the weighing roller, the signal Con2 that there is steel at the lifting chain position, the signal Con3 that there is steel at the hot delivery receiving roller position, the signal Con4 that the hot delivery receiving roller has a 1-second forward rotation delay, the signal Con5 that there is steel at the cold billet receiving roller position, the signal Con6 that the cold billet receiving roller has a 3-second forward rotation delay, the signal Con7 that the weighing roller has a 4-second forward rotation delay, the signal Con8 that there is steel at the weighing roller position, the furnace positioning start signal Con9, and the signal Con10 that there is steel on the cold billet receiving roller and the cold billet receiving roller has a 3-second forward rotation delay.

4. The method for automatically identifying a blank conveying path based on multi-state monitoring according to claim 3, characterized in that: The time delay control refers to controlling the state transition of the blank during the conveying process by setting the connection signal with different time delays. The state logic judgment refers to logically combining multiple state signals to identify the basic path of the conveying path.

5. The method for automatically identifying a blank conveying path based on multi-state monitoring according to claim 1, characterized in that: The generating of a plurality of conveying status data by state logic judgment and time delay control includes: The transport state data includes a first state State1 , a second state State2 , a third state State3 and a fourth state State4 .

6. The method for automatically identifying a blank conveying path based on multi-state monitoring according to claim 5, characterized in that: The generating of a plurality of transport status data through state logic judgment and time delay control according to the collected state information also includes: When state1 is 0 and there is steel signal Con2 at the elevator position is 1, State1 is 1; When State2 is 1 and the hot delivery roller conveyor forward rotation delay 1s connection signal con4 is 1, State1 is 0.

7. The method for automatically identifying a blank conveying path based on multi-state monitoring according to claim 6, characterized in that: The generating of a plurality of transport status data through state logic judgment and time delay control according to the collected state information also includes: When state1 is 1 and the steel signal at the hot delivery roller is 1 (Con3=1) and the hot delivery roller forward rotation delay 1 second connection signal Con4 is 1, State2 is 1; When State3 is 1, and State2=1, and the weighing roller optical detection signal Con1 is 1, and the steel signal Con5 at the cold billet receiving roller position is 1, and the cold billet receiving roller forward rotation delay 3s connection signal Con6 is 1, and the weighing roller forward rotation delay 4s connection signal con7 is 1, State2 is 0.

8. The method for automatically identifying a blank conveying path based on multi-state monitoring according to claim 7, characterized in that: The generating of a plurality of transport status data through state logic judgment and time delay control according to the collected state information also includes: When State3 is 0, and State2 is 1, and the weighing roller optical detection signal Con1 is 1, and the cold billet receiving roller position steel signal Con5 is 1, and the cold billet receiving roller forward delay 3 seconds connection signal Con6 is 1, and the weighing roller forward delay 4 seconds connection signal Con7 is 1, State3 is 1; When state3 is 1 and the furnace positioning start signal Con9 is 1, State3 is 0.

9. The method for automatically identifying a blank conveying path based on multi-state monitoring according to claim 8, characterized in that: The generating of a plurality of transport status data through state logic judgment and time delay control according to the collected state information also includes: When state2 is 0, state3 is 0, and state4 is 0, and there is steel signal Con5 at the cold billet receiving roller, and there is steel at the cold billet receiving roller, and the cold billet receiving roller forward rotation delay 3 seconds connection signal Con10 is 1, State4 is 1; When state4 is 1 and the furnace positioning start signal Con9 is 1, State4 is 0.

10. The method for automatically identifying a blank conveying path based on multi-state monitoring according to claim 9, characterized in that: The automatic identification of the conveying path of the blank according to the value of the conveying status data includes: When State3 is 1, the blank conveying path is identified as a hot conveying path; When State4 is 1, the blank conveying path is identified as a cold conveying path.

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