CN113473042B - Automatic tracking system and method for hot rolling main rolling line operation monitoring picture based on SDK - Google Patents
Automatic tracking system and method for hot rolling main rolling line operation monitoring picture based on SDK Download PDFInfo
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- CN113473042B CN113473042B CN202010242568.XA CN202010242568A CN113473042B CN 113473042 B CN113473042 B CN 113473042B CN 202010242568 A CN202010242568 A CN 202010242568A CN 113473042 B CN113473042 B CN 113473042B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
Abstract
The invention discloses an automatic monitoring picture tracking system based on SDK (software development kit) for hot rolling main rolling line operation and a control method thereof, wherein the system consists of a strip steel information tracking unit, an industrial television unit and a picture selection unit, and comprises a plurality of digital cameras, a video monitoring host, an L2 computer, an L1 control PLC (programmable logic controller), a network relay, a set-top box and a monitor. The L2 computer issues the strip steel information to the L1 control PLC of each monitoring area, the L1 control PLC determines the picture number to be displayed according to the abnormal information of production and equipment and the strip steel position information, and sends the picture number to the set-top box through the Ethernet, and the automatic switching is executed, so that only one picture in a plurality of monitoring pictures is displayed on the monitor. The monitoring picture of the hot rolling main rolling line is automatically tracked, so that the pictures concerned by operators in different processes are changed into one picture, the fatigue of the operators who frequently lift and lower the heads is greatly reduced, and the labor intensity of the operators is effectively improved.
Description
Technical Field
The invention relates to the field of industrial television monitoring of a hot rolling main rolling line operation table, in particular to an automatic tracking system of an operation monitoring picture of a hot rolling main rolling line based on SDK and a control method thereof.
Background
In domestic and foreign iron and steel enterprises, production operators of a hot rolling main rolling production line concentrate on the operation of a main operating platform, and monitor the equipment action and the production process of each part of the production line through an industrial television on site. The current industrial television adopts a digital camera, and a video signal enters a video control host through an optical fiber and then is sent to an operation console through a network. According to the number of the monitoring points of the camera, the operating console is provided with a corresponding industrial television screen, and because the monitoring points are more, a large industrial screen four-split screen method is generally adopted to display a monitoring picture. Thus, 5 and 6 large screens of 42 inches are usually hung on the operating platform, and operators need to keep a low head to watch HMI data pictures on the operating panel and the operating platform and often raise heads to watch the industrial television screens hung on the operating panel during production.
This approach is not ergonomic, tends to increase operator fatigue, and, in addition, rhythm and efficiency are affected for production.
It has been found through long-term observation that industrial television pictures, which operators pay attention to at different times, are related to the process of production, and for a hot rolling main rolling line, the production monitoring is divided into four areas: 1. a furnace monitoring area; 2. a rough rolling monitoring area; 3. a finish rolling monitoring area; 4. a winding monitoring area. In each monitoring area, the pictures concerned by operators are changed along with the change of the head and tail positions of the strip steel, the arrangement of the current monitor lists the pictures of each monitoring point of each monitoring area, and a large-screen industrial television is erected at each monitoring point to display all the pictures of each monitoring point to the operators.
Aiming at the problems that the number of monitoring points is large at present, an industrial television picture black screen technology exists in the prior art, however, the technology cannot solve the problems that an operator often raises the head to see different industrial television pictures hung on the screen and the visual sense and the cervical vertebra fatigue pain of the operator cannot be solved, so that the development of a special technology related to the industrial television pictures and the production process is urgently needed to accurately and automatically push the monitoring pictures concerned by the operator in different processes to the operator, the monitoring work intensity of the operator in a low hot rolling main rolling line is reduced, and the effectiveness of displaying the industrial television pictures is realized.
Disclosure of Invention
The invention designs a control scheme for automatically tracking the operation monitoring picture of the hot rolling main rolling line based on the SDK, which automatically switches the picture of an industrial television through the position of a head and a tail of a strip tracked by a PLC in L1 and simultaneously tracks the abnormal condition of a rolling mill, and an automatically tracking industrial television screen with the same size is arranged in parallel with an HMI picture at the head-up position of an operation table, only one monitoring picture is displayed in the screen, and the pictures can be automatically switched as required.
The invention provides a full-automatic tracking system for an operation monitoring picture of a hot rolling main rolling line based on a video control system SDK, which can automatically track the position of a head and a tail of a strip, simultaneously track the abnormal condition of a rolling mill, automatically switch an industrial television picture to be arranged in front of an operation table in a horizontal manner, reduce the fatigue of operators and improve the production operation efficiency.
According to an aspect of the present invention, there is provided an SDK-based automatic tracking system for a monitoring screen of a hot rolling line operation, comprising: the system comprises a strip steel information tracking unit, an industrial television unit and a picture selection unit, wherein the strip steel information tracking unit comprises a hot rolling main rolling line L2 computer and a plurality of L1 control PLCs, the plurality of L1 control PLCs respectively correspond to a heating furnace monitoring area, a rough rolling monitoring area, a finish rolling monitoring area and a coiling monitoring area, the L2 computer issues strip steel information to the L1 control PLCs of each monitoring area, and the strip steel information comprises anomaly detection information and strip steel tracking information; the industrial television unit comprises a plurality of cameras, a video monitoring host, a set top box and a monitor, wherein the video monitoring host is provided with an SDK interface; the picture selection unit executes automatic switching according to picture selection instructions of the L1 control PLC, so that only one picture in a plurality of monitoring pictures is displayed on the monitor.
The strip steel information tracking unit comprises a plurality of sensors and is used for detecting equipment abnormality and production abnormality and sending the abnormality information to a hot rolling main line L2 computer;
the strip steel information tracking unit also comprises position sensors and speed detection encoders which are arranged at different positions of a heating furnace monitoring area, a rough rolling monitoring area, a finish rolling monitoring area and a coiling monitoring area, an L2 computer issues strip steel tracking information to an L1 control PLC of each area, an L1 control PLC of each monitoring area automatically calculates the strip head position and the strip steel length of the strip steel according to the data of the position sensors and the speed detection encoders, the tracking of the strip steel on the whole production line of the heating furnace monitoring area, the rough rolling monitoring area, the finish rolling monitoring area and the coiling monitoring area is realized according to the strip head position and the strip steel length of the strip steel, and meanwhile, the L1 control PLC of each area preferentially selects an abnormal point monitoring picture and sends a picture selection command according to the abnormal information issued by the L2 computer;
the strip steel information tracking unit determines and sends a picture selection instruction for monitoring strip steel according to the abnormal monitoring information and the strip head/strip tail position information;
the strip steel information tracking unit also comprises position sensors and speed detection encoders which are arranged at different positions of a heating furnace monitoring area, a rough rolling monitoring area, a finish rolling monitoring area and a coiling monitoring area, a main rolling line L2 computer sends strip steel tracking information to an L1 control PLC of each area, an L1 control PLC of each area automatically calculates the strip head position and the strip steel length of the strip steel according to the data of the position sensors and the speed detection encoders, the tracking of the strip steel on all production lines of the heating furnace monitoring area, the rough rolling monitoring area, the finish rolling monitoring area and the coiling monitoring area is realized according to the strip head position and the strip steel length of the strip steel, and meanwhile, the L1 control PLC of each area preferentially selects abnormal point monitoring pictures and sends picture selection instructions according to abnormal information;
and the strip steel information tracking unit determines and sends a picture selection instruction for monitoring strip steel according to the abnormal monitoring information and the position information of the strip head/the strip tail.
The cameras are connected with the video monitoring host through optical fibers, the video monitoring host is connected with the set top box through an Ethernet cable, and the set top box is connected with the monitor through an HDMI video cable.
The L2 computer is connected with the L1 through an Ethernet cable to control the PLC, and the L1 control the PLC to be connected with the set-top box through the Ethernet cable.
The L2 computer and the L1 control PLC, the L1 control PLC and the set-top box, the video monitoring host and the set-top box can be connected through a 5G communication transmission mode.
The number of cameras provided in the furnace monitoring area, the rough rolling monitoring area, the finish rolling monitoring area, and the coiling monitoring area was 36, and 9 cameras were provided for each area.
The monitor is mounted on the console at a position alongside the HMI view.
According to another aspect of the present invention, there is provided a control method of an SDK-based automatic tracking system for an operation monitoring screen of a hot rolling main line, the plurality of cameras being respectively provided at different positions of a furnace monitoring area, a rough rolling monitoring area, a finish rolling monitoring area, and a coiling monitoring area on the hot rolling main line, corresponding to different process positions of the hot rolling main line, the method comprising the steps of:
arranging picture numbers for television pictures displayed on a monitor according to the distribution positions of the cameras;
the L1 control PLC of each area determines whether to switch to the video monitoring picture of the abnormal point according to the abnormal information sent by the L2 computer;
if the abnormality exists, determining the number of the picture to be displayed according to the abnormality information;
if the strip steel is normal, the L1 controls the PLC to calculate the head/tail position of the strip steel according to the strip steel tracking information sent by the L2 computer;
determining the number of the picture to be displayed according to the head/tail position of the strip steel;
the L1 controls the PLC to send the picture number to the set-top box through the Ethernet;
the set-top box selects a picture to be displayed and sends a video signal to the monitor through the HDMI video line;
the monitor displays a television picture corresponding to the picture number on the screen.
The control method further comprises the step of determining whether to perform automatic tracking of the picture, and if not, performing manual selection of the picture number.
The number of the screen is 1 to 36, and the screen corresponds to 36 cameras provided in a heating furnace monitoring area, a rough rolling monitoring area, a finish rolling monitoring area, and a coiling monitoring area.
The automatic tracking system of the hot rolling main rolling line operation monitoring picture based on the SDK and the control method thereof can produce the following beneficial technical effects:
1. automatic tracking hot rolling main rolling line strip steel position and video picture
In the rolling process of a hot rolling main rolling line, automatically tracking the automatically switched pictures of the industrial television screen in four areas; through the automatic tracking of the strip steel position, the system can push the required monitoring picture to the operator in real time according to the production progress, thereby greatly reducing the fatigue of the operator who frequently lifts the head and lowers the head, and effectively improving the labor intensity of the operator.
2. Simplifying field device configuration and eliminating a large number of field displays
The configuration of an industrial television of a field operation table is greatly reduced, the arrangement of tracking equipment of a field operation room of a hot rolling main rolling line is simpler, the workload of field construction is reduced, and the investment cost of a large amount of equipment is greatly reduced.
3. Video monitoring picture intelligently switched to abnormal point
When the control PLC of each area detects the production and equipment abnormality of the hot rolling main rolling line, the video control system SDK-based full-automatic tracking system of the operation monitoring picture of the hot rolling main rolling line can automatically and preferentially select the video monitoring picture of the abnormal point.
4. Reserved manual monitoring picture switching function
An operator can manually switch to any video picture in the field monitoring camera according to the requirement, and the operation is convenient.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.
FIG. 1 is a diagram of an automatic monitoring picture tracking system for an operation of a hot rolling main rolling line based on SDK according to the present invention, wherein 1 is a video controller host; 2. connecting an optical fiber; 3. a digital camera; 4. an Ethernet line; 5. a monitor; 6. an HDMI video line; 7. a video set-top box; 8. an Ethernet line; 9. l1 controls the PLC; 10. an L2 computer.
Fig. 2 is a control flowchart of an SDK-based automatic tracking method of a hot main rolling line operation monitoring screen according to the present invention.
Detailed Description
The technical scheme of the invention is specifically explained in the following with the accompanying drawings of the specification.
The detailed features and advantages of the present invention are described in detail in the detailed description which follows, and will be sufficient for anyone skilled in the art to understand the technical content of the present invention and to implement the present invention, and the related objects and advantages of the present invention will be easily understood by those skilled in the art from the description, claims and drawings disclosed in the present specification.
The full-automatic tracking system for the operation monitoring picture of the hot rolling main rolling line based on the SDK of the video control system consists of a strip steel information tracking unit, an industrial television unit and a picture selection unit, wherein the strip steel information tracking unit is L1 to control a PLC (programmable logic controller) and the industrial television unit to be the original function of the hot rolling main rolling line, the picture selection unit calculates the current camera picture information to be displayed by tracking the strip steel information of the strip steel information tracking unit and transmits the picture selection information to the industrial television unit, and the strip steel information comprises two parts of strip steel tracking and abnormal detection; the picture selection unit is used for sending the picture selection instruction for controlling the PLC to the set-top box through the Ethernet according to the video picture selection instruction developed by the video control system SDK, and selecting the picture to be displayed and output.
The strip steel information tracking unit sends strip steel tracking information to the control PLCs of each area by the main rolling line L2 computer, each area control PLC can calculate the strip steel position of each area, and calculates which monitoring camera the strip steel is in through the strip steel position information, and the information outputs a picture selection instruction through the SDK interface of the video control system, and sends the picture selection instruction to the set-top box through the Ethernet to display and output the selected picture. Meanwhile, the control PLCs of each area monitor the abnormal conditions of the production and equipment of each area through various sensors for detecting the current, the voltage, the acceleration and the like of the production line equipment, and if the abnormal conditions of the production and the equipment occur, the control PLCs of each area preferentially select an abnormal point industrial monitoring picture and send the abnormal point industrial monitoring picture to the industrial television unit through the Ethernet.
The industrial television unit consists of a plurality of digital cameras, a video control host and a set-top box monitor, wherein the digital cameras fixedly arranged at different positions of a hot rolling main rolling line capture picture information and transmit the picture information to the video control host through optical fibers, the video control host sends video signals to a client in a server form after processing image signals, and the set-top box serving as a network client of the video control host acquires video pictures from the video control host through an Ethernet and transmits the video pictures to the monitor through an HDMI video line for display. The set-top box not only can transmit pictures, but also is provided with a digital quantity input point, and different video pictures can be selectively displayed by the set-top box by sending different signals to the digital quantity input point.
The working principle of the picture selection unit is that a video control system SDK development tool of the set-top box is utilized to directly send the picture number calculated by the control PLC to the set-top box through the Ethernet so as to realize the picture selection and switching of the set-top box
The Ethernet cable information transmission mode can be realized through a 5G communication transmission mode as long as the camera, the video control host and the L1 control PLC are added with a 5G module.
As shown in fig. 1, the automatic tracking system of the SDK-based hot main rolling line operation monitoring screen according to the present invention includes: a video monitoring host 1; the plurality of digital cameras 3, L2 computers 10, L1 control the PLC 9, set-top box 7, monitor 5. The digital camera is connected with the video monitoring host through an optical fiber 2; the L2 computer is connected with the L1 control PLC 11, the video monitoring host computer is connected with the set-top box, and the L1 control PLC is connected with the set-top box through Ethernet cables; the set-top box is connected with the monitor through an HDMI video line.
And the hot rolling main rolling line L2 computer issues strip steel information to the L1 control PLC of each monitoring area, wherein the strip steel information comprises abnormality detection information and strip steel tracking information.
The L1 of each monitoring area controls the PLC to automatically calculate the strip head position and the strip steel length of the strip steel according to the data of the position sensor and the speed detection encoder, the tracking of the strip steel on the whole production line of the heating furnace monitoring area, the rough rolling monitoring area, the finish rolling monitoring area and the coiling monitoring area is realized according to the strip head position and the strip steel length of the strip steel, and meanwhile, the L1 of each monitoring area controls the PLC to preferentially select an abnormal point monitoring picture according to abnormal information sent by the main rolling line L2 computer and switch to a video monitoring picture of an abnormal point.
The cameras are connected with the video monitoring host through optical fibers, the video monitoring host is connected with the set-top box through an Ethernet cable, and the set-top box is connected with the monitor through an HDMI video cable.
The picture selection unit executes automatic switching according to picture selection instructions of the L1 control PLC, so that only one picture in a plurality of monitoring pictures is displayed on the monitor.
The L1 control PLC is connected with a network relay through an Ethernet cable, the network relay is connected with a set-top box through a DI/DO cable, the network relay converts the picture selection command from the L1 control PLC into a digital quantity output signal and outputs the digital quantity output signal to the set-top box through the DI/DO cable, the set-top box performs automatic switching according to the digital quantity output signal, and the picture selected by the picture selection command is displayed on the monitor.
The number of cameras provided in the furnace monitoring area, the rough rolling monitoring area, the finish rolling monitoring area, and the coiling monitoring area was 36, and 9 cameras were provided for each area.
The monitor is mounted on the console at a position alongside the HMI view.
FIG. 2 is a flow chart of the control method of the SDK-based automatic tracking system for the operation monitoring picture of the hot rolling main line.
As shown in fig. 2, the control method of the SDK-based automatic tracking system for the operation monitoring screen of the hot rolling main line includes the following steps:
firstly, determining whether to carry out the step of automatically tracking the picture, if not, executing manual picture number selection, and if so, executing an automatic picture tracking program;
then, according to the abnormal information sent by the L2 computer, whether the video monitoring picture is switched to the abnormal point is determined; if the abnormal picture is abnormal, determining the picture number to be displayed according to the abnormal information; if the strip steel is normal, calculating the head/tail position of the strip steel according to the strip steel tracking information sent by an L2 computer;
determining the picture number to be displayed according to the head/tail position of the strip steel;
the L1 controls the PLC to send the picture number to the network relay through the Ethernet;
the network relay converts the picture number into a corresponding relay output signal and outputs the relay output signal to the set top box;
the set-top box accesses the output signal of the relay to the video monitoring host computer, and the video monitoring host computer sends a video signal corresponding to the picture number to the set-top box;
the set-top box sends the video signal to the monitor through the HDMI video line;
the monitor displays a television picture corresponding to the picture number on the screen.
According to an embodiment of the invention, 36 industrial television monitoring points are arranged from a heating furnace area to a coiling area in a hot rolling main rolling line, 36 video pictures corresponding to the 36 industrial television monitoring points are provided, the positions of area lines corresponding to the strip steel positions in the 36 pictures are respectively calculated, and the following scheme is established: 1. the method comprises the following steps of (1) dividing the monitoring of a heating furnace, the monitoring of rough rolling, the monitoring of finish rolling and the monitoring of coiling into four areas; 2. when the hot rolling main line is produced, the full-automatic tracking system of the monitoring picture of the operation of the hot rolling main line calculates the number of the monitoring video pictures in the four areas according to the positions of the strip steel in the four areas and sends the monitoring video pictures to the industrial television units in the four areas; 3. the operator in the four areas can also manually change and switch any one of the monitoring pictures in the four areas.
The specific control scheme is as follows:
1. numbering 36 pictures, and calculating the space position covered by each picture;
2. the PLC calculates and outputs the strip steel position information according to the strip steel tracking information issued by the L2, and calculates the picture number to be displayed according to the position information;
3. the PLC sends the picture number to the set-top box through the Ethernet;
4. the network relay converts the picture number from the Ethernet into a corresponding relay for output;
5. the set top box selects a picture to be displayed and sends the picture to the automatic tracking industrial television screen through the HDMI video line.
As described above, the automatic tracking system for SDK-based hot rolling main line operation monitoring screen and the control method thereof according to the present invention can produce the following advantageous technical effects:
1. automatic tracking hot rolling main rolling line strip steel position and video picture
In the rolling process of a hot rolling main rolling line, automatically tracking the automatically switched pictures of the industrial television screen in four areas; through the automatic tracking of the strip steel position, the system can push the required monitoring picture to the operator in real time according to the production progress, thereby greatly reducing the fatigue of the operator who frequently lifts the head and lowers the head, and effectively improving the labor intensity of the operator.
2. Simplifying field device configuration and eliminating a large number of field displays
The configuration of an industrial television of a field operation table is greatly reduced, the arrangement of tracking equipment of a field operation room of a hot rolling main rolling line is simpler, the workload of field construction is reduced, and the investment cost of a large amount of equipment is greatly reduced.
3. Video monitoring picture intelligently switched to abnormal point
When the control PLC of each area detects the production and equipment abnormality of the hot rolling main rolling line, the video control system SDK-based full-automatic tracking system of the operation monitoring picture of the hot rolling main rolling line can automatically and preferentially select the video monitoring picture of the abnormal point.
4. Reserved manual monitoring picture switching function
An operator can manually switch to any video picture in the field monitoring camera according to the requirement, and the operation is convenient.
At present, the industrial television monitoring system adopts a digital server/client mode, and the automatic tracking industrial television screen control method can be popularized on the industrial control system of the type, although the control method of the invention can not be popularized on the traditional analog industrial television system, the analog system is eliminated at present, and the new system adopts a digital mode, so that the popularization prospect is very good.
Finally, it should be noted that while the present invention has been described with reference to the specific embodiments thereof, it should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be construed as limiting the present invention, and various equivalent changes and substitutions may be made therein without departing from the spirit of the present invention, and therefore, it is intended that all changes and modifications to the above embodiments within the spirit and scope of the present invention be covered by the appended claims.
Claims (9)
1. An automatic tracking system for monitoring pictures of operation of a hot rolling main rolling line based on SDK is characterized by comprising the following components: a strip steel information tracking unit, an industrial television unit and a picture selection unit,
the strip steel information tracking unit comprises a hot rolling main rolling line L2 computer and a plurality of L1 control PLCs, the plurality of L1 control PLCs respectively correspond to a heating furnace monitoring area, a rough rolling monitoring area, a finish rolling monitoring area and a coiling monitoring area, the L2 computer issues strip steel information to the L1 control PLCs of each monitoring area, and the strip steel information comprises abnormality detection information and strip steel tracking information;
the industrial television unit comprises a plurality of cameras, a video monitoring host, a set top box and a monitor, wherein the video monitoring host is provided with an SDK interface;
the picture selection unit executes automatic switching according to picture selection instructions of the L1 control PLC, so that only one picture in a plurality of monitoring pictures is displayed on the monitor,
the strip steel information tracking unit comprises a plurality of sensors and is used for detecting equipment abnormality and production abnormality and sending the abnormality information to a hot rolling main line L2 computer;
the strip steel information tracking unit also comprises position sensors and speed detection encoders which are arranged at different positions of a heating furnace monitoring area, a rough rolling monitoring area, a finish rolling monitoring area and a coiling monitoring area, an L2 computer issues strip steel tracking information to an L1 control PLC of each area, an L1 control PLC of each monitoring area automatically calculates the strip head position and the strip steel length of the strip steel according to the data of the position sensors and the speed detection encoders, the tracking of the strip steel on the whole production line of the heating furnace monitoring area, the rough rolling monitoring area, the finish rolling monitoring area and the coiling monitoring area is realized according to the strip head position and the strip steel length of the strip steel, meanwhile, an L1 control PLC of each area preferentially selects an abnormal point monitoring picture and sends a picture selection command according to the abnormal information issued by an L2 computer,
and the strip steel information tracking unit determines and sends a picture selection instruction for monitoring strip steel according to the abnormal monitoring information and the position information of the strip head/the strip tail.
2. The SDK-based hot rolling main line operation monitor picture auto-tracking system according to claim 1, wherein the plurality of cameras are connected to the video monitoring host via optical fibers, the video monitoring host is connected to the set-top box via an ethernet cable, and the set-top box is connected to the monitor via an HDMI video cable.
3. The SDK-based automatic tracking system for monitoring operation screens of a hot rolling main rolling line is characterized in that the L2 computer is connected with an L1 control PLC through an Ethernet line, and the L1 control PLC is connected with a set-top box through the Ethernet line.
4. The SDK-based automatic tracking system for monitoring pictures during operation of a hot rolling main rolling line of a hot rolling mill according to claim 1, wherein the L2 computer is connected with the L1 control PLC, and the L1 control PLC is connected with the set-top box and the video monitoring host is connected with the set-top box through a 5G communication transmission mode.
5. The automatic tracking system for an operation monitor screen of a hot rolling main line based on SDK according to claim 1, wherein the number of cameras provided in the furnace monitor area, the rough rolling monitor area, the finish rolling monitor area, and the coiling monitor area is 36, and 9 cameras are provided for each area.
6. The SDK-based hot rolling main line operation monitoring screen automatic tracking system of claim 1, wherein the monitor is installed at a position alongside an HMI screen on an operation table.
7. A control method for the SDK-based automatic tracking system for an operation monitoring screen of a hot rolling main line according to claim 1, wherein the plurality of cameras are respectively installed at different positions of a furnace monitoring area, a rough rolling monitoring area, a finish rolling monitoring area, and a coiling monitoring area on the hot rolling main line, corresponding to different process positions of the hot rolling main line, and wherein: the method comprises the following steps:
arranging picture numbers for television pictures displayed on a monitor according to the distribution positions of the cameras;
the L1 control PLC of each area determines whether to switch to the video monitoring picture of the abnormal point according to the abnormal information sent by the L2 computer;
if the abnormality exists, determining the number of the picture to be displayed according to the abnormality information;
if the strip steel is normal, the L1 controls the PLC to calculate the head/tail position of the strip steel according to the strip steel tracking information sent by the L2 computer;
determining the number of the picture to be displayed according to the head/tail position of the strip steel;
the L1 controls the PLC to send the picture number to the set-top box through the Ethernet;
the set-top box selects a picture to be displayed and sends a video signal to the monitor through the HDMI video line;
the monitor displays a television picture corresponding to the picture number on the screen.
8. The control method of claim 7, further comprising the step of determining whether to perform automatic tracking of the picture, and if not, performing manual selection of the picture number.
9. The control method according to claim 7, wherein the number of the screen is 1 to 36, and the screen corresponds to 36 cameras provided in a furnace monitoring area, a rough rolling monitoring area, a finish rolling monitoring area, and a coiling monitoring area, respectively.
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| CN108796413B (en) * | 2018-06-15 | 2023-09-26 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Tracking display method for split points of production pictures of continuous galvanizing unit |
| CN110262374B (en) * | 2019-06-18 | 2021-06-08 | 北京金自天正智能控制股份有限公司 | Development platform of steel rolling process control system |
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