CN113965606A - Deep sea mining monitoring system based on Ethernet and process control - Google Patents
Deep sea mining monitoring system based on Ethernet and process control Download PDFInfo
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Abstract
The invention relates to an Ethernet and process control based deep-sea mining monitoring system, which comprises a monitoring layer, a network layer and a field device layer, wherein the monitoring layer is used for realizing interaction between a central monitoring system and an operator, and comprises subsystem key parameter monitoring, historical data management and the like, and the network layer is used for linking all devices in a distributed control system through an optical fiber Ethernet and professional-level switching equipment. This deep sea mining monitored control system based on ethernet and process control realizes the communication connection of host computer and relevant subsystem through ethernet and OPC technique, and then controls each subsystem main equipment and accomplishes relevant action according to the host computer instruction requirement, reduces the complexity and the work load of software development, effectively guarantees the reliability of data communication under the unified mode of OPC for improve the degree of automation of system, reinforcing network communication performance, realize safe and reliable and practical monitoring function.
Description
Technical Field
The invention relates to the technical field of deep sea mining, in particular to a deep sea mining monitoring system based on Ethernet and process control.
Background
The continuous progress of global science and technology and industrial foundation greatly strengthens the competition of marine mineral resources internationally, and major industrialized countries and some large-scale industrial enterprises in the world pay high attention to deep-sea mining technology and deep-sea mining equipment, thereby greatly increasing the investment on human and financial resources. A large number of expert scholars all over the world are put into the field of deep sea mining, and systematic theoretical analysis and experimental research are conducted.
Along with the transfer of the seabed metal nodule mining operation from shallow sea to deep sea, the types of instruments and meters adopted on site are very rich, the data acquisition process is more and more complex, the traditional manual data acquisition or semi-automatic data acquisition is not enough to meet the high-efficiency requirement of data acquisition in the current stage, more equipment is needed to be used in deep sea mining, and each equipment and each instrument need to be monitored and controlled in real time through a monitoring system.
Disclosure of Invention
Solves the technical problem
Aiming at the defects of the prior art, the invention provides the deep sea mining monitoring system based on the Ethernet and the process control, which has the advantages of high automation degree, strong network communication capability, safe and reliable monitoring, high practicability and the like, and solves the problems of insufficient automation degree, weak network communication capability and insufficient practicability of the conventional deep sea mining monitoring system.
Technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a deep sea mining monitoring system based on Ethernet and process control comprises a monitoring layer, a network layer and a field device layer;
the monitoring layer is used for realizing interaction between the central monitoring system and operators, and comprises subsystem key parameter monitoring and historical data management;
the network layer connects all the devices in the distributed control system through the optical fiber Ethernet and the professional switching equipment;
and the field device layer is used for receiving a control instruction issued by the upper computer and uploading a real-time numerical value of the monitored variable.
Furthermore, the monitoring layer also comprises a server supporting an OPC interface, and the server encapsulates bottom layer real-time data.
Further, the network layer utilizes IEEE 802.3 fiber ethernet in a full duplex switched mode.
Further, the field device layer is the bottommost layer part in the system architecture and comprises a water surface support subsystem, a power transmission subsystem, an underwater transmission subsystem and an underwater ore collecting subsystem, and the field device layer receives a control instruction issued by the upper computer to complete relevant actions and upload real-time values of monitored variables.
And the water surface support subsystem comprises an A frame winch, a cable winch and related auxiliary equipment, and is used for cooperatively arranging and recovering related cables and hard pipes of the power transmission and underwater ore collection subsystem, monitoring the states of the gantry and the winch and alarming abnormal signals.
Furthermore, the power transmission subsystem comprises an electric power system for completing power supply tasks for the relay station, the lifting pump, the mine collecting car and related deck equipment, and is used for monitoring the states of the lifting pump, the relay station, the mine collecting car and the deck equipment motor and giving an alarm for abnormal signals.
And the underwater transmission subsystem monitors the running states of the motor, the hydraulic station, the power distribution box and the relay station and gives an alarm for abnormal signals.
Further, the underwater mine collection subsystem is a mine collection vehicle part, and a central monitoring system needs to monitor a motor, a hydraulic station, a crusher, hose stress, mine collection vehicle alarm information or state information in the working process of the mine collection vehicle in real time.
Another object of the present invention is to provide a deep-sea mining monitoring method for operating the deep-sea mining monitoring system based on ethernet and process control, the deep-sea mining monitoring method comprising:
the method comprises the steps of self-checking before starting, wherein the self-checking before starting specifically comprises the self-checking of starting of a central monitoring system, the self-checking of a water surface support subsystem, the self-checking of a power transmission subsystem, the self-checking of an underwater transmission subsystem and the self-checking of an underwater ore collecting subsystem;
the operation process monitoring specifically comprises the following steps: in the process of laying/recovering and mining operation, the central monitoring system monitors, displays and gives an abnormal alarm to key parameters of a water surface support, power transmission, underwater transmission and ore collecting subsystem in real time;
and (3) performing self-checking after the operation is finished, wherein the self-checking after the operation is finished specifically comprises the following steps: after the 'deployment-mining-recovery' operation process is finished, the central monitoring system needs to perform secondary self-checking before the water surface support, power transmission, underwater transmission and ore collection subsystem are closed.
Further, the data acquisition and interaction of the central monitoring system for water surface support, power transmission, underwater transmission and ore collection subsystem by using OPC Server is specifically as follows:
in the OPC mode, data of field equipment is acquired by an equipment driver, and the data is encapsulated by an OPC Server after the acquisition is finished, namely the data is converted into a uniform mode under an OPC protocol so as to directly interact with each OPC Client;
OPC data encapsulation is completed by specific OPC Server software;
the data exchange between the OPC Client and the PLC executing mechanism adopted by the field monitoring layer is specifically as follows:
the data exchange between the OPC Client and the device driver is realized through an OPC Server;
the monitoring system data transmits data in bottom layer equipment in a field equipment layer, such as PLC, to an OPC Server through an OPC3.0 communication protocol and a switch through an Ethernet, transmits the data to a configuration network through the OPC Server, processes the data through the configuration network, monitors and transfers the data to a database.
Advantageous effects
Compared with the prior art, the technical scheme of the application has the following beneficial effects:
this deep sea mining monitored control system based on ethernet and process control realizes the communication connection of host computer and relevant subsystem through ethernet and OPC technique, and then controls each subsystem main equipment and accomplishes relevant action according to the host computer instruction requirement, reduces the complexity and the work load of software development, effectively guarantees the reliability of data communication under the unified mode of OPC for improve the degree of automation of system, reinforcing network communication performance, realize safe and reliable and practical monitoring function.
Drawings
FIG. 1 is a diagram of an Ethernet and process control based deep-sea mining monitoring system architecture according to the present invention;
FIGS. 2-1 and 2-2 are process flow diagrams of deployment operations of field device level water support subsystems of a deep-sea mining monitoring system based on process control object and embedding technology according to the present invention;
FIG. 3 is a schematic diagram of a power delivery subsystem control for a field device layer of a deep-sea mining monitoring system based on process control object and embedding technology in accordance with the present invention;
FIG. 4 is a schematic diagram of an underwater transmission subsystem control of a field device layer of a deep-sea mining monitoring system based on a process control object and embedding technology according to the present invention;
5-1 and 5-2 are control diagrams of an underwater mine collection subsystem of a field device layer of a deep-sea mining monitoring system based on a process control object and embedding technology according to the invention;
FIG. 6 is a flow chart of a deep-sea mining monitoring system based on process control object and embedding technique according to the present invention;
FIG. 7 is a schematic diagram of the design of an OPC Server for a deep-sea mining monitoring system based on the process control object and embedding technology;
FIG. 8 is a diagram of a data exchange method between an OPC Client and a PLC actuator of a deep-sea mining monitoring system based on a process control object and an embedding technology according to the present invention;
FIG. 9 is a flowchart of an OPC Client design of the deep-sea mining monitoring system based on the process control object and embedding technology.
FIG. 10 is a schematic diagram of a database design of an object and embedding technique based deep-sea mining monitoring system of the present invention.
Fig. 11 is a flow chart illustrating operation monitoring of the deep-sea mining monitoring system based on the process control object and embedding technique according to the present invention.
Fig. 12 is a flow chart of the self-checking before starting in the operation monitoring of the deep-sea mining monitoring system based on the process control object and embedding technology.
Fig. 13 is a flow chart of monitoring the operation process in the operation monitoring of the deep-sea mining monitoring system based on the process control object and the embedding technology.
Fig. 14 is a flow chart of self-checking of operation completion in the operation monitoring of the deep-sea mining monitoring system based on the process control object and embedding technology according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic diagram of a monitoring system according to an embodiment of the present invention, as shown in fig. 1, where fig. 1 includes:
a monitoring layer, a network layer, and a field device layer.
The monitoring layer is used for realizing interaction between the central monitoring system and operators, and comprises subsystem key parameter monitoring, historical data management and the like.
The network layer utilizes IEEE 802.3 optical fiber Ethernet in full duplex switching mode, and adopts tree topology connection structure and professional switching equipment to obtain good network communication performance.
The field device layer is used for receiving a control command sent by the upper computer to complete relevant actions and uploading real-time numerical values of monitored variables so as to ensure that the device can safely and stably operate under the monitoring action of the upper computer.
The monitoring system is composed of a monitoring layer, a network layer and a field device layer, and communication connection between an upper computer and related subsystems is realized in a mode of matching an OPC technology and an Ethernet, so that main devices of the subsystems are controlled to complete related actions according to instructions of the upper computer, monitoring data points of each bottom device are connected with the upper computer through the field network, the connection mode is a bus structure, and the devices are all accessed to a local area network through OPC interfaces.
In the application, interaction between the central monitoring system and an operator is realized through the monitoring layer, and the interaction comprises key parameter monitoring of each subsystem, historical data management and the like.
It should be noted that the monitoring layer of the monitoring system mainly includes an upper computer monitoring interface, an OPC client, a communication server, a central console, and the like.
In a specific embodiment, the monitoring layer further comprises a Server supporting the OPC interface, and the Server of the OPC interface is the OPC Server.
It should be noted that, for the field bus and the ethernet interface device supporting the OPC interface, the field bus and the ethernet interface device are connected to the OPC Server through the software and hardware interface and the ethernet method, respectively, the OPC Server encapsulates the bottom layer real-time data, and the OPC Client performs data communication through the OPC interface provided by the OPC Server, thereby implementing the exchange flow of data.
In the application, communication between the monitoring layer and the field device layer is realized through the network layer, and all devices of the distributed control system are connected.
In a specific embodiment, the network layer uses IEEE 802.3 fiber ethernet in full duplex switching mode, and implements the association of each device of the distributed control system with professional-level switching devices by using a tree topology connection structure.
It should be noted that, the network layer of the central monitoring system utilizes IEEE 802.3 fiber ethernet in a full-duplex switching manner, and adopts a tree topology connection structure and professional switching equipment to obtain good network communication performance.
In the application, the field device layer receives a control instruction issued by the upper computer to complete relevant actions and upload real-time numerical values of monitored variables.
In a specific embodiment, the field device layer of the monitoring system is the bottommost layer in the system architecture and mainly comprises main devices of a water surface support, power transmission, underwater transmission and an underwater mining subsystem.
The water surface support subsystem comprises an A frame winch, a cable winch and related auxiliary equipment and is mainly responsible for cooperatively arranging and recovering related cables and hard pipes of the power transmission and underwater ore collecting subsystem.
Referring to fig. 2-1 and 2-2, the flow of the water surface support subsystem is specifically set up as follows: the water surface support subsystem keeps the running state from the water inlet to the recovery of each device, mainly monitors the states of the gantry and the winch throughout the whole operation process, and has the function of alarming abnormal signals.
It should be noted that, when the water surface support subsystem sends out an alarm signal, the central monitoring system collects the alarm signal, sends out a corresponding fault alarm prompt on the monitoring interface, and pops up an alarm window to prompt a worker to check the water surface support equipment with a fault. After the fault is confirmed, a water surface worker needs to judge whether the laying or recovery operation needs to be stopped or not, and if the operation does not need to be stopped, the alarm state is cancelled; and if the operation needs to be stopped, starting the emergency linkage or the emergency braking of the subsystem. And after the fault is relieved, the water surface support subsystem restores the distribution and recovery operation.
In a specific embodiment, the surface support subsystem fault alarm specifically includes: interface alarm and alarm pop-up window prompt, software prompt and sound-light alarm prompt.
It should be noted that the interface alarm and alarm popup prompt of the water surface support subsystem specifically includes: the device comprises a steel wire rope lowering length, a steel wire rope speed, a gantry angle, a gantry speed, a steel wire rope tension, a winch cable lowering length, a winch cable speed, a winch cable tension, an oil cylinder displacement, a coordination control state and the like.
It should be noted that the software prompt and the audible and visual alarm prompt of the water surface support subsystem specifically include: a pump station motor state, a pump station pressure state, a winch clutch state, a winch brake state, a winch system control state and the like.
It should be noted that the power transmission subsystem mainly includes an electric power system for performing power supply tasks on the relay station, the lift pump, the mine collection truck and the related deck equipment.
Referring to fig. 3, the control of the power transmission subsystem shown in fig. 3 specifically includes: the power transmission subsystem keeps the running state from the water inlet to the recovery of each device, mainly monitors the states of motors such as a lifting pump, a relay station, a mine collecting car and deck devices throughout the whole operation process, and has the function of alarming abnormal signals.
It should be noted that, when the power transmission subsystem sends out an alarm signal, the central monitoring system collects the alarm signal, sends out a corresponding fault alarm prompt on the monitoring interface, and pops up an alarm window to prompt a worker to troubleshoot the power supply equipment with a fault. After short-time troubleshooting, if the power subsystem can normally supply power, the power subsystem continues working, and the central monitoring system cancels the alarm of the fault signal; if the power subsystem can not recover normal power supply in a short time or the equipment with the alarm information continuously fails in an observation time period, the alarm state of the power supply equipment is kept, and overwater personnel are waited to judge whether to start the subsystem emergency linkage or emergency braking.
In a particular embodiment, the power delivery subsystem fault alarm specifically comprises: interface alarm and alarm pop-up window prompt, software prompt and sound-light alarm prompt.
It should be noted that the interface alarm and alarm pop-up prompt of the power transmission subsystem specifically includes: the phase voltage of each power supply container bus, the phase current of each power supply container bus, the phase power of each power supply container bus and the like.
It should be noted that the software prompt and the audible and visual alarm prompt of the power transmission subsystem specifically include: the incoming line monitoring cabinet circuit breaker state of each power supply container, the power supply system power supply circuit breaker state and the like.
It should be noted that the underwater transmission subsystem mainly comprises equipment components such as a lifting pump, a relay station, related hoses and hard pipes, and mainly completes lifting and conveying of mining industry.
Referring to fig. 4, the control of the underwater transmission subsystem shown in fig. 4 specifically includes: the underwater transmission subsystem keeps the running state from the work to the recovery of the mine collecting vehicle until the mining operation is finished, the mineral conveying in the relay station is finished, the running states of the motor, the hydraulic station, the power distribution box, the relay station and the like are mainly monitored, and the function of alarming abnormal signals is achieved.
It should be noted that, when the conveying subsystem sends an alarm signal during the conveying process, the central monitoring system collects the alarm signal, sends a fault alarm signal corresponding to the conveying subsystem on the monitoring interface in real time, and pops up an alarm information window of the alarm signal on the monitoring interface to prompt a worker to perform troubleshooting and confirm the running state of the equipment. According to the actual situation, if the conveying subsystem can normally carry out conveying operation, the conveying subsystem continues working, and the central monitoring system cancels the alarm of the fault signal; if the conveying system cannot normally operate according to actual conditions, the device keeps an alarm state, and overwater personnel wait for judging whether to start the emergency linkage or the emergency braking of the subsystem. And if the materials in the material bin of the relay station need to be emptied, stopping the operation of the feeding machine, and sending a stop signal of the conveying subsystem by the central monitoring system after the materials in the material bin are emptied.
In a specific embodiment, the underwater transmission subsystem fault alarm specifically includes: interface alarm and alarm pop-up window prompt, software prompt and sound-light alarm prompt.
It should be noted that the interface alarm and alarm pop-up prompt of the underwater transmission subsystem specifically includes: hydraulic station loading, hard pipe pump overflowing, hose pump overflowing, hydraulic station motor overflowing, hard pipe pump phase motor voltage, hard pipe pump phase motor current, hard pipe pump inlet pressure, hard pipe flow, hydraulic oil pressure, feeder rotating speed, relay station ground clearance, relay station water inlet depth, relay station pitch angle, relay station roll angle, relay station azimuth angle and the like.
It should be noted that the software prompt and the audible and visual alarm prompt of the underwater transmission subsystem specifically include: the control system comprises a hard pipe pump state, a hose pump state, a hydraulic station motor state, a feeding machine state, an emergency discharge valve state, a hard pipe motor insulation, a hard pipe motor leakage, a hose pump motor insulation, a hydraulic station motor leakage, a hydraulic station oil temperature overtemperature, a power distribution box leakage, a valve box leakage, a relay station electronic cabin leakage, a control power supply insulation fault, a control power supply fault and the like.
It should be noted that the underwater mine collection subsystem mainly refers to a mine collection vehicle part.
Referring to fig. 5-1 and 5-2, the control of the underwater ore collecting subsystem is specifically as follows: after all the equipment is laid, an ore collecting operation stage is started, and an operator needs to confirm the normal conditions of the equipment of the underwater ore collecting subsystem before and during mining; the central monitoring system needs to monitor alarm information or state information of a motor, a hydraulic station, a crusher, hose stress, a mining car and the like in the working process of the mining car in real time, and ensures normal operation of equipment and smooth execution of mining tasks.
It should be noted that, after the mine collecting vehicle completes the mine collecting operation in a certain area, the mine collecting vehicle needs to move to other areas to perform the mine collecting operation, at this time, the central monitoring system collects longitude and latitude coordinates from the mine collecting vehicle and the water surface support subsystem, informs the staff of moving the mine collecting area and reporting the longitude and latitude information of the mine collecting vehicle and the ship, and the staff performs reasonable scheduling and moving according to a certain algorithm.
It should be noted that, if a transient overcurrent fault occurs in the mine collection vehicle motor and an alarm signal is sent, the central monitoring system collects the alarm signal, sends a corresponding fault alarm signal of the mine collection vehicle on the monitoring interface in real time, and pops up an alarm information window of the alarm signal on the monitoring interface to prompt a worker to reduce the power supply frequency of a power supply container of the corresponding mine collection vehicle motor. If the mine can run stably after the actual situation is met, the mining work is continued, and the central monitoring system cancels the alarm of the fault signal; if the system cannot run stably or an overcurrent alarm signal is continuously generated after the system does not run stably according to the actual situation, the central monitoring system continues software alarm according to the steps and sends out acousto-optic alarm to prompt other subsystems, and the central monitoring system waits for the overwater personnel to judge whether to start the subsystems for emergency linkage or emergency braking.
It should be noted that, when the motor of the ore collecting vehicle has relatively serious faults such as electric leakage, over-temperature and the like, the central monitoring system acquires the alarm signal, sends out the corresponding fault alarm signal of the ore collecting vehicle on the monitoring interface in real time, and pops up the alarm information window of the alarm signal on the monitoring interface; at the moment, the upper computer software also sends alarm information to the acousto-optic alarm system, and the fault equipment sends a flicker prompt and a corresponding buzzer sends a sound alarm. And if the motor of the ore collecting vehicle directly has a shutdown fault, except the alarm prompt, waiting for the overwater personnel to judge whether to start the emergency linkage or the emergency braking of the subsystem.
In a specific embodiment, the underwater mine collection subsystem fault alarm specifically includes: interface alarm and alarm pop-up window prompt, software prompt and sound-light alarm prompt.
It should be noted that the interface alarm and alarm pop-up window prompt of the underwater ore collecting subsystem specifically includes: the device comprises the following components of the voltage of each phase of the motor, the current of each phase of the motor, the leakage current of the motor, the insulation resistance of the motor, the stress of a hose, the temperature of an oil pump motor, the pressure of HPU1, the submerging depth of the ore collection vehicle, the height of the ore collection vehicle from the bottom, the inclination angle of the ore collection vehicle, the azimuth angle of the ore collection vehicle, the rotating speed of a crawler, the indentation depth of the crawler, the longitude and latitude of the operation vehicle and the like.
It should be noted that the software prompt and the audible and visual alarm prompt of the underwater ore collecting subsystem specifically include: overtemperature of a motor of the ore collecting vehicle, electric leakage of the motor of the ore collecting vehicle, blockage of a hydraulic station, overtemperature of the hydraulic station, water leakage of an electronic cabin, water leakage of a valve box, water leakage of a power distribution box, blockage of a crusher, overlarge stress of a hose, insulation failure of a control power supply, failure of the control power supply and the like.
It should be noted that, the field device layer is used as a control object part of the coordination control system, on one hand, receives a control instruction issued by the upper computer to complete a relevant action to realize a system function, and on the other hand, uploads a real-time value of a monitored variable to ensure that the device is safely and stably operated under the monitoring action of the upper computer.
Referring to fig. 6, the data flow of the monitoring system shown in fig. 6 specifically includes: through Ethernet, the data in the bottom layer equipment in the field equipment layer, such as PLC, is transmitted to an OPC Server through an OPC3.0 communication protocol and a switch, and then transmitted to a configuration king through the OPC Server, and the data is processed through the configuration king to monitor and transfer the data to a database.
Referring to fig. 7, the OPC Server design shown in fig. 7 specifically has the following functions: the OPC Server is a set of a device driver and an OPC interface, for this reason, in an OPC mode, data of field devices are collected by the device driver, and the data are packaged by the OPC Server after the collection is finished, namely, the data are converted into a uniform mode under an OPC protocol to directly interact with all OPC clients, and the OPC data packaging is finished by specific OPC Server software.
It should be noted that, designing the OPC Server in this way has the following advantages, that is, the complexity and workload of software development can be reduced, and the reliability of data communication in the OPC unified way can be effectively ensured.
Referring to fig. 8, the data exchange method between the OPC Client and the PLC executing mechanism shown in fig. 8 specifically includes the following functions: and the data exchange between the OPC Client and the device driver is realized through the OPC Server.
Referring to fig. 9, the OPC Client design flow shown in fig. 9 specifically includes:
an initializing set OPC Client program 101, read/write operation OPC tag data 102, and a clear OPC group object 103.
In a specific embodiment, the initializing and setting the OPC Client program specifically includes:
1) initializing and setting the DCOM by an OPC Client program;
2) on the basis of correctly initializing the DCOM, establishing a customized interface;
3) after the Client interface is correctly created, an OPC Client program creates an OPC group object for the OPC Server object;
4) after the OPC group object is correctly created, a plurality of OPC label objects are created for the OPC group object by an OPC Client program.
In a specific embodiment, the completing the read/write operation on the OPC tag data specifically includes:
two automated interface methods were created:
1) the On data Change and the On async _ Write Complete are called after data Change or asynchronous Write operation is finished;
2) the read/write operation of the OPC tag data is completed.
In a specific embodiment, the clearing of the OPC group object specifically includes:
1) and clearing the OPC group object in the OPC Server object when the OPC Client work is finished.
Referring to fig. 10, the monitoring system database design shown in fig. 10 is specifically as follows: the basic objects managed by the central monitoring system are data points and control points.
It should be noted that the attributes of the data points and the control points include the sub-system to which the data points belong, the device to which the data points belong, the numerical value of the data points, the unit, the data type, and the like, and the attributes include the basic properties of the points themselves and reflect the dependency relationship between the objects.
Referring to fig. 11, the monitoring system operation monitoring process shown in fig. 11 specifically includes:
a pre-start-up self-test 101, a job process monitor 102, and a job end self-test 103.
Referring to fig. 12, the self-test before starting shown in fig. 12 specifically includes: the central monitoring system starts self-checking, the water surface support subsystem self-checking, the power transmission subsystem self-checking, the underwater transmission subsystem self-checking and the underwater ore collecting subsystem self-checking.
Referring to fig. 13, the operation process monitoring shown in fig. 13 specifically includes: in the process of laying/recovering and mining operation, the central monitoring system monitors, displays and gives an abnormal alarm to key parameters of a water surface support subsystem, a power transmission subsystem, an underwater transmission subsystem and an ore collecting subsystem in real time.
Referring to fig. 14, the operation end self-check shown in fig. 14 specifically includes: after the operation process of 'laying-mining-recycling' is completed, the central monitoring system needs to perform secondary self-checking before water surface support, power transmission, underwater transmission and ore collecting subsystems are closed.
In summary, the monitoring system in the application is a deep-sea mining heterogeneous network monitoring system based on the Ethernet and OPC technology, the monitoring system mainly monitors field devices of four subsystems, and alarm linkage control is started when an alarm signal is generated.
The monitoring system also monitors equipment such as an A frame, a winch and a tower crane on a ship to finish the laying or recovery operation of mining equipment, establishes a group of interface specifications meeting the standardized network control requirements based on an OPC DA3.0 technical specification, and transmits the standardized OPC protocol data through an IEEE 802.3 optical fiber Ethernet.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A deep sea mining monitoring system based on Ethernet and process control is characterized by comprising a monitoring layer, a network layer and a field device layer;
the monitoring layer is used for realizing interaction between the central monitoring system and operators, and comprises subsystem key parameter monitoring and historical data management;
the network layer connects all the devices in the distributed control system through the optical fiber Ethernet and the professional switching equipment;
and the field device layer is used for receiving a control instruction issued by the upper computer and uploading a real-time numerical value of the monitored variable.
2. The ethernet and process control based deep sea mining monitoring system of claim 1, wherein the monitoring layer further comprises a server supporting OPC interfaces encapsulating underlying real time data.
3. The ethernet and process control based deep sea mining monitoring system of claim 1, wherein the network layer utilizes IEEE 802.3 fiber ethernet for full duplex switched mode.
4. The Ethernet and process control based deep-sea mining monitoring system of claim 1, wherein the field device layer is the bottommost layer in the system architecture and comprises devices of a water surface support subsystem, a power transmission subsystem, an underwater transmission subsystem and an underwater ore collecting subsystem, and the field device layer receives control commands issued by the upper computer to complete relevant actions and upload real-time values of monitored variables.
5. The Ethernet and process control based deep sea mining monitoring system of claim 4, wherein the surface support subsystem comprises A frame winch, cable winch and related auxiliary equipment, and is used for cooperatively deploying and retrieving cables and hard pipes related to the power transmission and underwater mining collection subsystem, monitoring the state of the gantry and winch and alarming abnormal signals.
6. The ethernet and process control based deep sea mining monitoring system of claim 4, wherein the power delivery subsystem comprises an electrical power system for powering the relay station, the lift pump, the mine collection vehicle and the associated deck equipment, and is configured to monitor the status of the lift pump, the relay station, the mine collection vehicle, the deck equipment motors and to alert of an anomaly signal.
7. The Ethernet and process control based deep sea mining monitoring system of claim 4, wherein the underwater transmission subsystem comprises a lifting pump, a relay station and related hose and hard pipe equipment components, the underwater transmission subsystem completes lifting and conveying of the mining industry, and the underwater transmission subsystem monitors the running states of the motor and hydraulic station, the power distribution box and the relay station and alarms abnormal signals.
8. The Ethernet and process control based deep sea mining monitoring system of claim 4, wherein the underwater mine collection subsystem is referred to as a mine collection car portion, and the central monitoring system needs to monitor in real time the motor, hydraulic station, crusher, hose stress, mine collection car alarm information or status information during the operation of the mine collection car.
9. A deep-sea mining monitoring method for operating the deep-sea mining monitoring system based on ethernet and process control according to any one of claims 1 to 8, wherein the deep-sea mining monitoring method comprises:
the method comprises the steps of self-checking before starting, wherein the self-checking before starting specifically comprises the self-checking of starting of a central monitoring system, the self-checking of a water surface support subsystem, the self-checking of a power transmission subsystem, the self-checking of an underwater transmission subsystem and the self-checking of an underwater ore collecting subsystem;
the operation process monitoring specifically comprises the following steps: in the process of laying/recovering and mining operation, the central monitoring system monitors, displays and gives an abnormal alarm to key parameters of a water surface support, power transmission, underwater transmission and ore collecting subsystem in real time;
and (3) performing self-checking after the operation is finished, wherein the self-checking after the operation is finished specifically comprises the following steps: after the 'deployment-mining-recovery' operation process is finished, the central monitoring system needs to perform secondary self-checking before the water surface support, power transmission, underwater transmission and ore collection subsystem are closed.
10. The method for monitoring deep-sea mining according to claim 9, wherein the data acquisition and interaction of the central monitoring system for the water surface support, power transmission, underwater transmission and ore collection subsystem using OPC Server is specifically:
in the OPC mode, data of field equipment is acquired by an equipment driver, and the data is encapsulated by an OPC Server after the acquisition is finished, namely the data is converted into a uniform mode under an OPC protocol so as to directly interact with each OPC Client;
OPC data encapsulation is completed by specific OPC Server software;
the data exchange between the OPC Client and the PLC executing mechanism adopted by the field monitoring layer is specifically as follows:
the data exchange between the OPC Client and the device driver is realized through an OPC Server;
the monitoring system data transmits data in bottom layer equipment in a field equipment layer, such as PLC, to an OPC Server through an OPC3.0 communication protocol and a switch through an Ethernet, transmits the data to a configuration network through the OPC Server, processes the data through the configuration network, monitors and transfers the data to a database.
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