CN113467358B - Portable intelligent synchronous close control device for hot rolling finishing line - Google Patents
Portable intelligent synchronous close control device for hot rolling finishing line Download PDFInfo
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- CN113467358B CN113467358B CN202010243299.9A CN202010243299A CN113467358B CN 113467358 B CN113467358 B CN 113467358B CN 202010243299 A CN202010243299 A CN 202010243299A CN 113467358 B CN113467358 B CN 113467358B
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- hot rolling
- rolling finishing
- industrial intelligent
- finishing line
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/12—Plc mp multi processor system
- G05B2219/1214—Real-time communication between plc, Ethernet for configuration, monitor
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Testing And Monitoring For Control Systems (AREA)
- Programmable Controllers (AREA)
Abstract
The invention discloses a portable intelligent synchronous proximity control device for a hot rolling finishing operation line, which is in communication connection with an S7 PLC (programmable logic controller), and comprises a plurality of industrial intelligent panel bases and industrial intelligent panels, wherein the industrial intelligent panel bases are arranged beside machines in each process area of the hot rolling finishing operation line, and the industrial intelligent panels are matched with any industrial intelligent panel base; the industrial intelligent panel bases comprise base bodies, and NFC identification cards, emergency stop switches and key switches which are arranged on the base bodies; the industrial intelligent panel is provided with a touch screen, an NFC module and a communication interface, and an operating system is loaded in the industrial intelligent panel; the NFC identification card is matched with the NFC module; and the emergency stop switch and the key switch are connected into the S7 PLC through hard wires. The invention overcomes the defects that the fixed field near-control operation box beside the existing hot rolling finishing operation line machine has large volume and large sight blocking, the wiring engineering is large, the cost of an input/output module is high, the operation interface can not be changed, and the like.
Description
Technical Field
The invention relates to a proximity control operation device of a hot rolling finishing line, in particular to a portable intelligent synchronous proximity control device for the hot rolling finishing line.
Background
In domestic and foreign iron and steel enterprises, the traditional manual close control operation adopts a field machine-side operational mode, for example: the method comprises the following steps that an operation button, an action signal lamp and the like of equipment of the operation box beside each area are arranged at the positions of an inlet preparation station, an uncoiling area, a flattening area, a roll changing area, a coiling area, an outlet area and the like of a hot rolling flattening line, the operation buttons, the action signal lamp and the like of the equipment of the operation box beside each area are arranged, the operation buttons, the action signal lamp and other signals are connected to an input and output board card of an electrical room control PLC through construction wiring, and then the action of each equipment is controlled by a control program of the PLC.
With the continuous improvement of labor efficiency in recent years, the field operation posts are fewer, the centralized control is basically focused on a main operation room, and the manual close control beside a machine is needed only when an automatic mode fails or is abnormal. The existing operation mode of the nearby control operation box has the following disadvantages:
1) the operation box has larger volume, compact full-automatic operating line equipment and difficult arrangement, and is easy to block the sight of operators in the master control room;
2) the operation buttons and switches on the operation box are more, the cable quantity is larger, and the wiring engineering quantity is correspondingly higher;
3) The PLC has a plurality of IO modules, and the operating buttons of a near control operating box of the traditional operating line occupy about 1/3 IO points of the PLC;
4) paying attention to that the manual operation state display is weak, if the state display needs to be more perfect, an operation panel such as an OP (operation panel) needs to be added, the cost is increased, and the volume of an operation box is also increased;
5) the function expansion is almost impossible, and once the design, manufacture and installation of the proximity control operation box are completed, the proximity control operation box needs to be replaced again when the function expansion is needed;
6) when field self-help projects such as field equipment debugging, production preparation and the like are developed, the conventional field fixed type proximity control operation box has more time for frequent card hanging, card picking and the like during safe card hanging.
In view of the above problems, the best solution is always sought, but the breakthrough of eliminating the field fixed type proximity control operation box cannot be realized due to the limitation of safety factors and the communication limitation of a wired network.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a portable intelligent synchronous proximity control device for a hot rolling finishing line, which overcomes the defects that a fixed field proximity control operation box beside the existing hot rolling finishing line has large volume and large sight blocking line, the wiring engineering is large, the cost of an input/output module is high, an operation interface cannot be changed and the like.
In order to realize the purpose, the invention adopts the following technical scheme:
a portable intelligent synchronous near control device for a hot rolling finishing line establishes communication connection with an S7 PLC and comprises a plurality of industrial intelligent panel bases and an industrial intelligent panel, wherein the industrial intelligent panel bases are installed beside machines in each process area of the hot rolling finishing line, and the industrial intelligent panel is matched with any one industrial intelligent panel base;
the industrial intelligent panel bases comprise base bodies, and NFC identification cards, emergency stop switches and key switches which are arranged on the base bodies;
the industrial intelligent panel is provided with a touch screen, an NFC module and a communication interface, and an operating system is loaded in the industrial intelligent panel;
the operating system provides visual graphs for the touch screen and provides network interface support for the communication interface;
the communication interface provides the S7 PLC online protocol support for the visual graph on the touch screen, and realizes communication interaction with the S7 PLC through a standard protocol stack provided by the operating system;
the NFC identification card is matched with the NFC module, so that the S7 PLC identifies the position information of the industrial intelligent panel;
and the emergency stop switch and the key switch are connected into the S7 PLC through hard wires.
The operating system adopts an Android operating system.
And the communication interface establishes communication connection with the S7 PLC in a WIFI signal or Ethernet mode.
The communication interface adopts a Siemens S7 communication API library.
The industrial intelligence panel also has other general multimedia devices.
The other universal multimedia equipment comprises a camera, sound and images.
The base body is made of an aluminum alloy material.
And an indicator light is also arranged on the base body.
And a safety fence is also arranged beside each process region machine of the hot rolling finishing line and between the industrial intelligent panel base.
And the emergency stop switch and the key switch are connected into a safety IO port of the S7 PLC through hard wires.
In the technical scheme, when each near control operation station of the leveling line needs field near control operation, an operator carries an industrial intelligent panel to the side of the machine and inserts the corresponding industrial intelligent panel base, so that the field near control operation can be carried out, and after the operation is finished, the industrial intelligent panel is pulled out of the industrial intelligent panel base and can be brought back to an operation room. The industrial intelligent panel comprises operation buttons of all field proximity control operation stations, operation buttons of related front and rear process equipment and state display of corresponding equipment. The device provided by the invention compiles an operation picture through software, communicates with the leveling production line control S7 PLC through a WIFI signal, sends an operation instruction to the S7 PLC, and acquires the equipment action state of the operated equipment from the S7 PLC, so that the problem that a traditional field near control operation box is large in size and not easy to arrange is solved, the hardware investment and a large number of signal cables of an S7 PLC input/output module are saved, and the operation display function can be adjusted according to needs in the production process. Because the industrial intelligent panel adopts a general Android system, besides field operation, an Android standard APP can be installed, and operation activities such as quality inspection, information checking, original information recording and the like are realized by using technical means such as video, audio and the like. The application effect of the device is as follows:
1) The size is small, the industrial intelligent panel is consistent with the common pad in size, the sight cannot be blocked, and the industrial intelligent panel can be taken away when not used;
2) data are interacted with the S7 PLC through a network, an IO channel of the S7 PLC does not need to be occupied, and engineering cost such as field wiring is saved;
3) besides the operation function, the industrial intelligent panel has perfect display, and can compile state display pictures according to the needs without adding additional equipment;
4) the functions can be conveniently expanded, updated and upgraded in the future, and intelligent functions such as equipment maintenance, refueling prompting and the like can be added;
5) only one industrial intelligent panel can deal with the near control operation points of the whole production line, equipment does not need to be arranged at each operation point, and even cross-production-line use can be realized;
6) the industrial intelligent panel base is provided with a key switch for blocking the operation of the industrial intelligent panel and can be used for replacing a proximity control hang tag;
7) the NFC technology is adopted, which industrial intelligent panel occupies the industrial intelligent panel base can be identified through the NFC technology, the operation authority of the near control point can be opened, the remote operation authority can be blocked, and safe locking is facilitated;
8) after the near control authority is opened, the S7 PLC locks the remote control of any other place, after the key switch is locked, the remote control is locked, the near control operation is also locked, and the essential safety measures are really realized;
9) The industrial intelligent panel can also be used as a universal pad (personal digital assistant), so that standard third-party apps can be conveniently installed to realize auxiliary functions like voice, video communication, photo transmission and the like, and operation activities such as quality inspection, information checking, original information recording and the like are realized.
Drawings
FIG. 1 is a schematic view of the construction of an embodiment of the apparatus of the present invention;
FIG. 2 is a schematic plan view of an industrial intelligence panel base in accordance with an embodiment of the present invention;
FIG. 3 is a schematic diagram of the operation flow of an embodiment of the apparatus of the present invention;
FIG. 4 is a control block diagram of an S7 PLC associated with an industrial intelligence panel in accordance with an embodiment of the present invention;
FIG. 5 is a schematic flow chart of a prior art S7 PLC control program;
FIG. 6 is a flow chart of a PLC control program of an embodiment S7 of the device.
Detailed Description
The technical scheme of the invention is further explained by combining the drawings and the embodiment.
As shown in figures 1 and 2, the portable intelligent synchronous near control device for the hot rolling finishing line provided by the invention establishes communication connection with an S7 PLC100 of the finishing line, and comprises a plurality of industrial intelligent panel bases 1 arranged beside each process area machine of the hot rolling finishing line and an industrial intelligent panel 2 capable of being inserted into any industrial intelligent panel base 1. When the near control operation of the machine needs to be carried out, an operator carries the industrial intelligent panel 2 to the industrial intelligent panel base 1 beside the machine of the corresponding process area, the industrial intelligent panel 2 is inserted and fixed into the industrial intelligent panel base 1 to carry out the near control operation, and the industrial intelligent panel 2 is taken down and taken back after the operation is finished.
The industrial intelligent panel base 1 comprises a customized aluminum alloy base body 101, and an NFC identification card 102, an emergency stop switch 103, a key switch 104 and an indicator lamp 105 are arranged on the base body 101.
The industrial intelligence panel 2 has a touch screen, NFC module, communication interface 202 and other common multimedia devices (camera, sound, image, etc.).
The NFC identification card 102 is adapted to the NFC module, so that the S7PLC100 identifies the positioning information of the industrial smart panel 2, and is enabled as a security operation to prevent a false touch. When industry intelligent panel 2 inserts industry intelligent panel base 1, through the NFC sign indicating number discernment operating position on the industry intelligent panel base 1, S7PLC100 when reading effectual NFC signal, blockade remote operation authority, unblock 2 near-control operation functions of industry intelligent panel.
The emergency stop switch 103 and the key switch 104 are both connected to the safety IO port of the S7PLC100 through the hard wire 4, so that the emergency stop channel is reliable, the operation blocking is reliably achieved, after the emergency stop switch 103 and the key switch 104 are started, the safety chain of the S7PLC100 is triggered, the near control operation function is effectively cut off (at the moment, the remote operation authority is forbidden), and the key switch 104 can be taken away to replace the plate hanging operation.
Safety fences are further arranged between the sides of the machines in all working procedures of the hot rolling finishing line and the industrial intelligent panel bases 1, and all the industrial intelligent panel bases 1 are arranged outside the safety fences, so that the personal safety of operators is ensured.
The software system architecture of the industrial intelligent panel 2 is composed of an Android operating system 201, a Siemens S7 communication API library adopted by a communication interface 202, and an application 203 for automatically developing an operation screen app on the Android operating system. The Android operating system 201 can provide interfaces such as graphics and bottom hardware for the operating screen app application 203, and provide hardware supports such as network interfaces for a Siemens S7 communication API library; the Siemens S7 communication API library provides S7 PLC online protocol support for the operation screen app application 203, and realizes communication interaction with the S7 PLC100 through a standard protocol stack provided by an Android operating system.
The operation screen app application 203 is used for developing a corresponding operation screen by an Android Studio tool of an Android operation system 201 development platform according to specific operation area object equipment.
In addition, the industrial intelligent panel 2 can also be used as a universal pad, and a standard third-party app is installed to realize auxiliary functions such as voice communication, quality detection photo transmission and the like.
As shown in fig. 3 and fig. 4, the operation flow of the apparatus of the present invention may include the following three aspects of operation contents:
1) putting an industrial intelligent panel 2 into an industrial intelligent panel base 1, reading the base for NFC identification, judging a near control position, automatically pushing an operation interface of a field near control point on the industrial intelligent panel 2, calling a subprogram of the field near control point, and waiting for a manual instruction;
2) the Android operating system 201 captures manual touch screen information, a subprogram sent to the on-site near control point, a judgment instruction, a data type of the S7PLC100 is converted, an instruction is generated and sent to the S7PLC100, and meanwhile verification data (written into a data block of the S7PLC100 through a WIFI signal) occur;
3) the S7PLC100 periodically reads in data blocks created for the communication data of the industrial intelligent panel 2 (the traditional method is replaced by the S7PLC100 periodically reads in data of hardware IO); meanwhile, the S7PLC100 reads the hardware safety chain IO data of the industrial intelligent panel base 1 (1, the industrial intelligent panel 2 operates the blocking key switch 104; 2, the emergency stop switch 103 is pressed to block the field device at any time), and finally controls the device of the field near control point according to the control logic of the S7PLC 100.
As shown in fig. 5 and 6, the device of the present invention changes the conventional control manner of the S7PLC, and reads an operation command from the communication data of the industrial intelligence panel 2, instead of the conventional digital quantity input/output template.
In order to prevent communication abnormality between the industrial intelligent panel 2 and the S7 PLC100, the industrial intelligent panel 2 transmits a heartbeat message to the S7 PLC100 every 100ms, and the S7 PLC100 verifies the heartbeat message transmitted by the industrial intelligent panel 2 every 100ms, and if an error occurs, the operation is locked, and the reliability of communication is ensured.
The following takes a hot-rolled flat wire inlet preparation station as an example, and the specific control method for the functional operation of the inlet preparation station by using the device of the invention comprises the following steps:
1) inserting an industrial intelligent panel 2 into an industrial intelligent panel base 1 beside an entrance preparation station, reading NFC information on the industrial intelligent panel base 1 by the industrial intelligent panel 2, automatically opening an operation interface of the access preparation station for close control operation, and simultaneously sending a position signal and an operation request to an S7 PLC100 through a network;
2) s7 the PLC100 receives the operation request of the industrial intelligent panel 2, checks the position information, switches the operation mode of the entrance preparation station to the near control mode, blocks the remote operation and opens the authority to the industrial intelligent panel 2;
3) the industrial intelligent panel 2 transmits the manual operation information to the S7 PLC100 through the network in a cyclic scanning manner, and simultaneously transmits a mental state message;
4) the S7 PLC100 transmits the responded device status information and process status information to the industrial intelligent panel 2 through the network in a cyclic scanning manner for screen display of the industrial intelligent panel 2; meanwhile, reading the operation information and the heart state message sent by the industrial intelligent panel 2 in a cyclic scanning mode, when the heartbeat message is abnormal, neglecting the read operation information, and if the correct heartbeat message cannot be obtained every time within a set time, considering that the communication fails;
5) The S7 PLC100 executes corresponding operation results after obtaining the effective operation information sent by the industrial intelligent panel 2;
6) during the proximity control operation, if the key switch 104 on the industrial smart panel base 1 is turned to the locked state, the S7 PLC100 blocks the operation authority and any operation request information of the industrial smart panel 2 until the key switch 104 state is turned to the released state;
7) after the close control operation of the industrial intelligent panel 2 is finished, the industrial intelligent panel 2 is pulled out of the industrial intelligent panel base 1, the industrial intelligent panel 2 loses the NFC identification mark, an operation picture is locked, only the equipment state and the process state are displayed, and meanwhile, the S7 PLC100 loses the position information of the industrial intelligent panel 2, namely, the operation mode of the entrance preparation station is changed into a remote operation mode;
8) the emergency stop button 103 on the industrial intelligent panel base 1 on site is not restricted by the state of the industrial intelligent panel 2, and can be pressed down at any time to play an emergency stop role.
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 used as a limitation of the present invention, and that the changes and modifications of the above embodiments are within the scope of the appended claims as long as they are within the true spirit of the present invention.
Claims (10)
1. The utility model provides a hot rolling finishing line is with synchronous nearly accuse device of portable intelligence, establishes communication connection with S7 PLC which characterized in that: the hot rolling finishing line comprises a plurality of industrial intelligent panel bases and industrial intelligent panels, wherein the industrial intelligent panel bases are arranged beside machines in each working procedure area of the hot rolling finishing line;
the industrial intelligent panel bases comprise base bodies, and NFC identification cards, emergency stop switches and key switches which are arranged on the base bodies;
the industrial intelligent panel is provided with a touch screen, an NFC module and a communication interface, and an operating system is loaded in the industrial intelligent panel;
the operating system provides visual graphs for the touch screen and provides network interface support for the communication interface;
the communication interface provides the S7 PLC onli protocol support for the visual graph on the touch screen, and realizes communication interaction with the S7 PLC through a standard protocol stack provided by the operating system;
the NFC identification card is matched with the NFC module, so that the S7 PLC identifies the position information of the industrial intelligent panel;
and the emergency stop switch and the key switch are connected into the S7 PLC through hard wires.
2. The portable intelligent synchronous proximity control device for a hot rolling finishing line as claimed in claim 1, wherein: the operating system adopts an Android operating system.
3. The portable intelligent synchronous proximity control device for a hot rolling finishing line as claimed in claim 2, wherein: the communication interface establishes communication connection with the S7 PLC in a WIFI signal or Ethernet mode.
4. The portable intelligent synchronous proximity control device for a hot rolling finishing line according to claim 3, wherein: the communication interface adopts a Si emers S7 communication API library.
5. The portable intelligent synchronous proximity control device for a hot rolling finishing line according to claim 1, wherein: the industrial intelligence panel also has other general multimedia devices.
6. The portable intelligent synchronous proximity control device for a hot rolling finishing line according to claim 5, wherein: the other universal multimedia equipment comprises a camera.
7. The portable intelligent synchronous proximity control device for a hot rolling finishing line according to claim 1, wherein: the base body is made of an aluminum alloy material.
8. The portable intelligent synchronous proximity control device for a hot rolling finishing line according to claim 1, wherein: and an indicator light is also arranged on the base body.
9. The portable intelligent synchronous proximity control device for a hot rolling finishing line according to claim 1, wherein: and a safety fence is also arranged beside each process region machine of the hot rolling finishing line and between the industrial intelligent panel base.
10. The portable intelligent synchronous proximity control device for a hot rolling finishing line according to claim 1, wherein: and the emergency stop switch and the key switch are connected into a safety IO port of the S7 PLC through hard wires.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010243299.9A CN113467358B (en) | 2020-03-31 | 2020-03-31 | Portable intelligent synchronous close control device for hot rolling finishing line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010243299.9A CN113467358B (en) | 2020-03-31 | 2020-03-31 | Portable intelligent synchronous close control device for hot rolling finishing line |
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| CN113467358A CN113467358A (en) | 2021-10-01 |
| CN113467358B true CN113467358B (en) | 2022-06-28 |
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