Gray bus-based material flow accurate acquisition method, device and system and medium

Abstract

The invention discloses a material flow accurate acquisition method, device and system based on a Gray bus, and a medium. The method comprises the following steps: carrying out detection area division by using a Gray bus positioning technology; a weight signal of the detection area is received, whether empty packet calculation is started or not is judged according to the position data of the crown block, if yes, multiple times of weight value collection are conducted in the current detection area at the preset frequency, and the weight value position with the highest occurrence frequency in the collected data serves as the empty packet weight of the current detection area; a weight signal sent by the detection area is received, whether re-packet calculation is started or not is judged according to the position data, if yes, weight value collection is carried out on the current detection area for several times at the preset frequency, and the weight value with the highest occurrence frequency of collected data serves as the re-packet weight of the current detection area; and performing subtraction according to the empty ladle weight and the heavy ladle weight to obtain the tapping quantity of the current heat. Manual confirmation and intervention are not needed, the steel ladle is automatically tracked, and the steel tapping amount of the converter is accurately collected.

Description

Technical Field

[0001] The present invention relates to the field of iron and steel metallurgy, and in particular to a method, device, system and medium for accurately collecting cross-material flow of molten steel in a steelmaking plant based on a Gray busbar. Background Art

[0002] The cross-operation of molten steel in the metallurgical industry involves empty ladle lifting, heavy ladle lifting, slag pot lifting, and random auxiliary operations such as wire lifting, coordinated maintenance, etc. How to accurately track the flow of molten steel and accurately and automatically collect the weight of steel tapping is still a difficult point. Traditional technology uses the ladle car weighing system to collect the tapping amount, collects the empty ladle weight of the ladle car before tapping, and collects the heavy ladle weight after tapping, and then obtains the tapping amount. Because the ladle car is in a harsh high-temperature environment. First, some slag will splash out during tapping and argon blowing, and slag is easily accumulated in the gaps on both sides of the ladle car tank seat. Second, the automatic docking argon cylinder currently installed at the bottom of the ladle car will produce some reaction force. Both of these situations will affect the weighing accuracy of the weighing sensor and thus affect the accuracy of the tapping amount. At the same time, the failure rate of the ladle car weighing sensor is high in high temperature environments. Simply collecting the tapping weight through the overhead crane weighing system requires manual confirmation to eliminate invalid lifting actions such as slag pot lifting and maintenance lifting objects. At the same time, the randomness of manual confirmation is prone to data distortion. Summary of the invention

[0003] In view of the above-mentioned existing technical defects, the present invention provides a method, device, system and medium for precise material flow collection based on Gray busbar. By adopting Gray busbar technology to accurately position the overhead crane, the position of each workstation is defined (definition range is 5m), and the overhead crane weighing system is combined to collect the weight information and position information of the overhead crane in real time, so as to realize automatic tracking of the ladle and automatic flow of process logistics information without manual confirmation and intervention, and accurately collect the empty ladle weight and the heavy ladle weight, and then accurately collect the converter steel output.

[0004] According to one aspect of the present invention, there is provided a method for accurately collecting material flow based on Gray busbars, comprising the following steps: Using Gray busbar positioning technology, the detection area is divided for each workstation according to the distribution of workstations in the direction of material flow; Receive a first weight signal sent by the detection area, and determine whether there is weight release according to the first weight signal; if so, obtain first position data of the overhead crane, and determine whether to start empty package calculation according to the first position data; if so, collect weight values ​​of the empty packages in the current detection area several times at a first preset frequency, and use the weight value with the highest frequency in the collected data as the empty package weight of the current detection area; Receive a second weight signal sent by the detection area, and determine whether there is a lifting heavy tank according to the second weight signal. If so, the overhead crane is lifted to a preset height, obtain the second position data of the overhead crane, and determine whether to start the heavy bag calculation according to the position data. If it is started, the weight value of the empty bag in the current detection area is collected several times at a second preset frequency, and the weight value with the highest frequency of the collected data is used as the heavy bag weight of the current detection area; The steel output of the current furnace is obtained by subtracting the weight of the empty bag and the weight of the heavy bag.

[0005] As a further technical solution, the method also includes: after obtaining the steel output of the current furnace, obtaining the furnace number of the current furnace and the steel type corresponding to the current material flow, and binding the steel output, furnace number, and steel type information of the furnace.

[0006] As a further technical solution, the method further includes: when the first position data or the second position data of the sky vehicle is greater than a preset range, starting empty packet calculation or duplicate packet calculation.

[0007] As a further technical solution, the method also includes: after the collection of the converter steel output is completed, when the first weight signal or the second weight signal of the detection area is received, it is determined that the first position data or the second position data has been obtained, and the empty package or heavy package calculation is started again.

[0008] As a further technical solution, the method further includes: when the first weight signal or the second weight signal is within a preset range, it is determined that there is a weight release or a lifting of the heavy tank.

[0009] According to one aspect of the present invention, there is provided a device for accurately collecting material flow based on Gray busbars, comprising: The detection area division module uses Gray busbar positioning technology to divide the detection area for each workstation according to the distribution of workstations in the direction of material flow; The empty package weight acquisition module receives the first weight signal sent by the detection area, and determines whether there is weight release according to the first weight signal. If so, the first position data of the overhead crane is acquired, and the empty package calculation is determined according to the first position data. If it is started, the weight value of the empty packages in the current detection area is collected several times at a first preset frequency, and the weight of the empty packages in the current detection area is collected at the weight value position with the highest frequency in the data; The heavy bag weight acquisition module receives the second weight signal sent by the detection area, and determines whether there is a lifting heavy tank according to the second weight signal. If so, the overhead crane is lifted to a preset height, and the second position data of the overhead crane is obtained. According to the position data, it is determined whether to start the heavy bag calculation. If it is started, the weight value of the empty bag in the current detection area is collected several times at a second preset frequency, and the weight value with the highest frequency of the collected data is used as the heavy bag weight of the current detection area; The steel output acquisition module calculates the steel output of the current furnace by subtracting the weight of the empty package from the weight of the heavy package.

[0010] According to one aspect of the present invention, there is provided a system for precise material flow acquisition based on Gray busbar, comprising a control terminal and a sensor group arranged in each detection area, each of the detection areas being arranged along the direction of the material flow, the sensor group comprising a gravity sensor and a position sensor, the multiple gravity sensors and the multiple position sensors being respectively connected to the control terminal, and the control terminal being configured to implement the described method.

[0011] According to one aspect of the present specification, a non-transitory computer-readable storage medium is provided, wherein the non-transitory computer-readable storage medium stores computer instructions, wherein the computer instructions enable the computer to execute the method described above.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The present invention uses Gray busbar technology to accurately locate the crane trolley and trolley, defines the position of each workstation (definition range 5m), combines the crane weighing system to collect the crane weight information and trolley position information every second in real time, and accurately identifies the effective lifting action through software logic, rules, and algorithms. It can realize automatic tracking of the ladle without manual confirmation and intervention, automatic flow of process logistics information, accurate collection of empty ladle weight, heavy ladle weight, and accurate collection of converter output. The comparison accuracy is ±0.2t through manual on-site recording. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of a process of a method for accurately collecting material flow based on Gray busbar according to an embodiment of the present invention; Figure 2 Schematic diagram of the structure of a system for accurate material flow acquisition based on Gray busbar according to an embodiment of the present invention; Figure 3 Schematic diagram of a system for accurately collecting material flow based on Gray busbars according to an embodiment of the present invention; Figure 4 A schematic diagram of a process flow based on accurate collection of Gray busbar material flow according to an embodiment of the present invention; Figure 5It is a schematic diagram of an algorithm empty package result based on Gray busbar material flow accurate acquisition according to an embodiment of the present invention; Figure 6 It is a schematic diagram of the algorithm repackaging result based on the accurate acquisition of Gray busbar material flow according to an embodiment of the present invention. DETAILED DESCRIPTION

[0014] Gray busbar positioning technology is a relatively mature positioning technology at present, and the crane weighing system is not affected by the adverse environment of converter steel tapping. By using Gray busbar technology to accurately position the crane trolley and car, define the position of each workstation (definition range 5m), combined with the crane weighing system to collect the crane weight information and the position information of the trolley and car in real time every second, and accurately identify the effective lifting action through software logic and algorithm, it can realize the automatic tracking of the ladle without manual confirmation intervention, the automatic flow of process logistics information, and the accurate collection of the empty ladle weight and the heavy ladle weight, and then accurately collect the converter steel tapping amount.

[0015] By using Gray busbar technology to accurately position the overhead crane trolley and car, and define the position of each workstation (definition range 5m), combined with the overhead crane weighing system to collect the crane weight information and trolley position information in real time every second, and accurately identify effective lifting actions through software logic, rules, and algorithms, it can achieve automatic tracking of ladles without manual confirmation and intervention, automatic flow of process logistics information, and accurate collection of empty and heavy ladle weights, thereby accurately collecting the converter output.

[0016] It should be noted that the present invention obtains the steel output of each workstation along the direction of material flow. After the production line is started, the control end enters the working state, obtains the weight signal sent by each workstation at a time, and calculates the steel output one by one.

[0017] The following will clearly and completely describe the technical solutions of various embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] This embodiment introduces a method for accurately collecting material flow based on Gray busbar. The principle of this method is to accurately position the overhead crane trolley and car by using Gray busbar technology, define the position of each workstation (definition range 5m), and combine the overhead crane weighing system to collect the crane weight information and the position information of the trolley and the trolley in real time every second. Through software logic and algorithms, it can realize automatic tracking of ladles without manual confirmation and intervention, automatic flow of process logistics information, accurate collection of empty ladle weight and heavy ladle weight, and then accurately collect the output of converter steel. The process flow is as follows Figure 4 shown.

[0019] (1) Install a coding cable between the steel-span crane walkway guardrail and the locomotive and define it as the X-axis. The length of the coding cable is the same as the length of the steel-span crane. Install an address generator at the starting end of the coding cable. The address detector is installed in the crane electrical compartment. The antenna box connected to the address detector is installed on the side of the crane at a relative position of 5-30cm from the coding cable. Similarly, install the coding cable, address generator, detector, antenna box, etc. above the crane trolley towing cable bracket and define it as the Y-axis. Install a PLC control system that matches the X-axis and Y-axis address detectors in the crane electrical compartment to analyze the X-axis and Y-axis positions.

[0020] (2) Install a wireless AP (including: switch, 24V power converter, POE power supply, air switch, etc.) in the electrical room of the crane (with air conditioning). The AP cabinet needs to take a stable 220V AC power supply from the crane. The wireless AP device consists of an antenna receiver and an antenna processor. The antenna receiver is installed above the crane to ensure that there is no obstruction between the corresponding wireless APs on the ground and that the point-to-point connection is maintained on the same horizontal line. One processor on the crane is connected to one receiver, and one processor on the ground is connected to two receivers. The two receivers paired on the crane and the ground are consistent with the RADIO ports on the corresponding receivers. The wireless AP processor is powered by a POE adapter, which is equipped with two Ethernet ports: DATA and DATA&POWER. Among them, DATA is connected to the switch in the AP protection cabinet, and the DATA&POWER port is connected to the Ethernet port on the wireless processor.

[0021] (3) Installation of vehicle touch screen terminal The touch screen terminal is installed in the overhead crane driver's cab. The touch screen terminal is powered by a 24V power converter in the wireless AP protection cabinet and is connected to the switch via a network cable.

[0022] (4) Software algorithm programming 4.1 Workstation location definition

[0023] 4.2 Logic of collecting converter steel weight The overhead crane lifts the ladle from the ladle repair position or the cross-car (new ladle on line), and the lifting height is (15m). The weighing system determines whether the lifting object is an empty ladle / slag pot / maintenance tooling, and the empty ladle weight range is 75.0t-85.0t. When walking starts and the distance from the current position is greater than 500 X-axis coordinate values, the system starts to take data, taking a weight value per second, and taking 50 weight values. Define a one-dimensional array int

[50] , fill 50 weight values ​​into the one-dimensional array, and use the traversal counting method to find the weighing value with the highest frequency of occurrence as the valid value, which is counted as the current empty ladle weight B. 空包 This method can avoid the distortion of data caused by the weight fluctuation during the crane's movement, and has higher accuracy. According to the definition of the X-coordinate position of the workstation, when the crane moves to the target position, releases the weight and leaves the current position, the X-axis coordinate position is greater than 100, and B 空包 As the empty package weight of this batch. For example: the overhead crane moves to the X-axis coordinate area (12480-13480) of the 1# converter argon station area, and moves the trolley to the Y-axis coordinate position (1285-1385). At the same time, the weight of the overhead crane is released. If the weighing weight is less than 1.0t, it is considered as the weight released. The empty package weight is counted as the empty package weight of this batch, and the empty package weight is transmitted to the L2 system. The L2 system stores the empty package weight of this batch with the furnace number as the mark. The algorithm collection results are shown in Figure 5 .

[0024] The overhead crane moves to the X-axis coordinate area AR1 / AR2 / AR3, lifts the heavy tank from the ladle car, judges the weight range limit (200t-240t), lifts the height to 15m, and starts to move away from the current position greater than 500 X-axis coordinate values. The system starts to take data, taking a weight value per second, and taking 50 weight values. Define a one-dimensional array int

[50] , fill 50 weight values ​​into the one-dimensional array, and use the traversal counting method to find the weighing value with the highest frequency as the valid value, which is counted as the current weight package weight B 重包 The weight of the heavy package is transmitted to the L2 system, and the algorithm collection results are shown in Figure 6 , store the weight of the heavy bag of the furnace with the furnace number as the mark.

[0025] The L2 system is calculated by B 重包 -B 空包 The steel output of this furnace is 234.2-85.8=148.4t.

[0026] 4.3 Logic of the converter steel weight process transfer After the weight of the steel out of the converter is collected, the weight of the steel out of the furnace, the furnace number, and the steel type information are bound. When the crane moves to the next process LF / RH / CC, it makes a weight release action (weighing weight < 1.0t) according to the X and Y axis coordinate position, and transmits the weight of the steel out of the furnace, the furnace number, and the steel type information to the L2 system of the receiving station. For example, after the steel is out of the converter, the molten steel of the furnace is transferred to the LF according to the process route. When the crane moves to the LF station and makes a weight release action according to the X and Y axis coordinate position, the weight of the steel out of the furnace will be used as the entry weight of the LF. When the LF processing is completed, the overhead crane lifts the heavy tank from the ladle car in the LF furnace area, and the weight range limit is judged (200t-240t). The height is lifted to 15m, and the crane starts to walk away from the current position greater than 500X axis coordinate values. The system starts to take data, taking one weight value per second, and taking 50 weight values. Define a one-dimensional array int

[50] , fill 50 weight values ​​into the one-dimensional array, and use the traversal counting method to find the weighing value with the highest frequency as the valid value, which is counted as the current weight package weight B 重包 The weight of the heavy bag is transmitted to the L2 system, and the weight minus the weight of the empty bag of the furnace is calculated as the LF outbound weight.

[0027] Similar to the previous process, based on the X- and Y-axis coordinate positions and the weight of the overhead crane, the inlet and outlet weights of each process can be accurately determined, and the weight information of the converter molten steel can be accurately transferred between processes without human intervention.

[0028] Based on the same inventive concept as the above-mentioned embodiment, this embodiment introduces a device for material tracking based on BIM parametric model, such as Figure 2 As shown, the system comprises: The detection area division module uses Gray busbar positioning technology to divide the detection area for each workstation according to the distribution of workstations in the direction of material flow; The empty package weight acquisition module receives the first weight signal sent by the detection area, and determines whether there is weight release according to the first weight signal. If so, the first position data of the overhead crane is acquired, and the empty package calculation is determined according to the first position data. If it is started, the weight value of the empty packages in the current detection area is collected several times at a first preset frequency, and the weight of the empty packages in the current detection area is collected at the weight value position with the highest frequency in the data; The heavy bag weight acquisition module receives the second weight signal sent by the detection area, and determines whether there is a lifting heavy tank according to the second weight signal. If so, the overhead crane is lifted to a preset height, and the second position data of the overhead crane is obtained. According to the position data, it is determined whether to start the heavy bag calculation. If it is started, the weight value of the empty bag in the current detection area is collected several times at a second preset frequency, and the weight value with the highest frequency of the collected data is used as the heavy bag weight of the current detection area; The steel output acquisition module calculates the steel output of the current furnace by subtracting the weight of the empty package from the weight of the heavy package.

[0029] The above modules can be implemented with reference to the method embodiments, which will not be described in detail here. In particular, it should be pointed out that: The detection area division module is also used to execute the following instructions: The steel output is collected at each workstation along the direction of material flow.

[0030] The empty package weight acquisition module and the heavy package mass acquisition module are also used to execute the following instructions: When the position data of the sky car is greater than the preset range, the empty or duplicate package calculation is started; The empty bag weight value and the heavy bag weight value that appear most frequently are stored with the furnace number as the mark.

[0031] The steel output acquisition module is also used to execute the following instructions: After obtaining the steel output of the current furnace, the steel output, furnace number, and steel type information of the furnace are bound. When the weight signal of the detection area is received, the weight value is repeatedly collected.

[0032] The method of the embodiment of the present invention is implemented by relying on the system, so it is necessary to introduce the relevant system. Based on this purpose, the embodiment of the present invention provides a system, such as Figure 3 As shown, it includes a control end and a sensor group arranged in each detection area, each of the detection areas is arranged along the material flow direction, the sensor group includes a gravity sensor and a position sensor, the multiple gravity sensors and the multiple position sensors are respectively connected to the control end, and the control end is configured to implement the method described, including the following steps: Using Gray busbar positioning technology, the detection area is divided for each workstation according to the distribution of workstations in the direction of material flow; Receive a first weight signal sent by the detection area, and determine whether there is weight release according to the first weight signal; if so, obtain first position data of the overhead crane, and determine whether to start empty package calculation according to the first position data; if so, collect weight values ​​of the empty packages in the current detection area several times at a first preset frequency, and use the weight value with the highest frequency in the collected data as the empty package weight of the current detection area; Receive a second weight signal sent by the detection area, and determine whether there is a lifting heavy tank according to the second weight signal. If so, the overhead crane is lifted to a preset height, obtain the second position data of the overhead crane, and determine whether to start the heavy bag calculation according to the position data. If it is started, the weight value of the empty bag in the current detection area is collected several times at a second preset frequency, and the weight value with the highest frequency of the collected data is used as the heavy bag weight of the current detection area; The steel output of the current furnace is obtained by subtracting the weight of the empty bag and the weight of the heavy bag.

[0033] Based on the same inventive concept as the above embodiment, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores computer instructions, wherein the computer instructions enable the computer to execute the method, including the following steps: Using Gray busbar positioning technology, the detection area is divided for each workstation according to the distribution of workstations in the direction of material flow; Receive a first weight signal sent by the detection area, and determine whether there is weight release according to the first weight signal; if so, obtain first position data of the overhead crane, and determine whether to start empty package calculation according to the first position data; if so, collect weight values ​​of the empty packages in the current detection area several times at a first preset frequency, and use the weight value with the highest frequency in the collected data as the empty package weight of the current detection area; Receive a second weight signal sent by the detection area, and determine whether there is a lifting heavy tank according to the second weight signal. If so, the overhead crane is lifted to a preset height, obtain the second position data of the overhead crane, and determine whether to start the heavy bag calculation according to the position data. If it is started, the weight value of the empty bag in the current detection area is collected several times at a second preset frequency, and the weight value with the highest frequency of the collected data is used as the heavy bag weight of the current detection area; The steel output of the current furnace is obtained by subtracting the weight of the empty bag and the weight of the heavy bag.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present invention.

Claims

1. A method for collecting material flow based on Gray master line, characterized in that: The following steps are involved: Using Gray busbar positioning technology, the detection area is divided for each workstation according to the distribution of workstations in the direction of material flow; Receive a first weight signal sent by the detection area, and determine whether there is weight release according to the first weight signal; if so, obtain first position data of the overhead crane, and determine whether to start empty package calculation according to the first position data; if so, collect weight values ​​of the empty packages in the current detection area several times at a first preset frequency, and use the weight value with the highest frequency in the collected data as the empty package weight of the current detection area; Receive a second weight signal sent by the detection area, and determine whether there is a lifting heavy tank according to the second weight signal. If so, the overhead crane is lifted to a preset height, obtain the second position data of the overhead crane, and determine whether to start the heavy bag calculation according to the position data. If it is started, the weight value of the empty bag in the current detection area is collected several times at a second preset frequency, and the weight value with the highest frequency of the collected data is used as the heavy bag weight of the current detection area; The steel output of the current furnace is obtained by subtracting the weight of the empty bag and the weight of the heavy bag.

2. The method for accurate material flow acquisition based on Gray busbar according to claim 1 is characterized in that: The method further comprises: after obtaining the steel output of the current furnace, obtaining the furnace number of the current furnace and the steel type corresponding to the current material flow, and binding the steel output, furnace number and steel type information of the furnace.

3. The method for accurate material flow acquisition based on Gray busbar according to claim 1 is characterized in that: The method further includes: when the first position data or the second position data of the vehicle is greater than a preset range, starting empty packet calculation or duplicate packet calculation.

4. The method for accurate material flow acquisition based on Gray busbar according to claim 1 is characterized in that: The method further includes: after the converter steel output is collected, when a first weight signal or a second weight signal of a detection area is received, it is determined that the first position data or the second position data is acquired, and then the empty bag or heavy bag calculation is started again.

5. The method for accurate material flow acquisition based on Gray busbar according to claim 1 is characterized in that: The method further includes: when the first weight signal or the second weight signal is within a preset range, determining that there is a weight release or a lifting of the heavy tank.

6. Based on Gray busbar material flow accurate collection device, characterized in that: include: The detection area division module uses Gray busbar positioning technology to divide the detection area for each workstation according to the distribution of workstations in the direction of material flow; The empty package weight acquisition module receives the first weight signal sent by the detection area, and determines whether there is weight release according to the first weight signal. If so, the first position data of the overhead crane is acquired, and the empty package calculation is determined according to the first position data. If it is started, the weight value of the empty packages in the current detection area is collected several times at a first preset frequency, and the weight of the empty packages in the current detection area is collected at the weight value position with the highest frequency in the data; The heavy bag weight acquisition module receives the second weight signal sent by the detection area, and determines whether there is a lifting heavy tank according to the second weight signal. If so, the overhead crane is lifted to a preset height, and the second position data of the overhead crane is obtained. According to the position data, it is determined whether to start the heavy bag calculation. If it is started, the weight value of the empty bag in the current detection area is collected several times at a second preset frequency, and the weight value with the highest frequency of the collected data is used as the heavy bag weight of the current detection area; The steel output acquisition module calculates the steel output of the current furnace by subtracting the weight of the empty package from the weight of the heavy package.

7. A system for precise material flow acquisition based on Gray busbar, comprising a control end and a sensor group arranged in each detection area, each of the detection areas is set along the direction of material flow, the sensor group comprises a gravity sensor and a position sensor, the multiple gravity sensors and the multiple position sensors are respectively connected to the control end, and the control end is configured to implement the method described in any one of claims 1 to 5.

8. A non-transitory computer readable storage medium, characterized in that: The non-transitory computer-readable storage medium stores computer instructions, which cause the computer to execute the method of any one of claims 1 to 5.

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