CN1987700A - Hydraulic hoisting monitor system and its use in hydraulic hoisting control - Google Patents
Hydraulic hoisting monitor system and its use in hydraulic hoisting control Download PDFInfo
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Abstract
The monitored control (MC) system is composed of up device, low device and data acquisition system. The up device is a MC computer with monitored control software in use for monitored controlling system and data management. The low device includes n pieces of site controller composed of n pieces of programmable controller with logic control main program and synchronous adjustment sub program being written into. Being installed on y pieces of hydraulic power unit, the n pieces of site controller through real time network is connected to MC computer. The method includes remote control mode, and local control mode. No mater how large the system is, direct selecting mode for jacks is adopted in the system. Features are: simple system circuit, intuitive operations, and accurate measurement. Configuration software is in use for monitoring system and querying historical data. The invention is in use for lifting control of large-scale component.
Description
Technical field:
The present invention relates to a kind of hydraulic pressure lift supervisory system and the utilization in hydraulic pressure lift control thereof.
Background technology
Hydraulic lifting system is a kind of new heavy-duty hoisting equipment mechanical, electrical, liquid that integrates.Specific volume is little mutually with conventional hoisting machine tool with tonnage for it, and in light weight, occupied ground is little, is specially adapted to narrow space, the unapproachable construction occasion of conventional hoisting machine tool.Be widely used in now that electricity is built, the equipment of petrochemical industry, shipbuilding industry is installed and the engineerings such as lifting of road and bridge in hydraulic lifting system still based on the elevator system of logic control.This type systematic is simple in structure, and low price is regulated but can not carry out dynamic synchronization, is applicable to less demanding less engineering.Some have also appearred in recent years by computer control, laser detects the hydraulic lifting system of the discrepancy in elevation, as the primary and second follow-up control hydraulic elevator system and the lifting construction method (patent No.: 02124630.0) promptly be one of them thereof, its control system is by the manual operation switch group, automatic operation switch, the travel switch group, n programmable controller PC constitutes network, the n group relay is formed the automatic or manual control system, the lifting jack of working in the system, pumping plant, no matter laser connects under which PC, control by the PC1 centralized operation, understand the scene with camera system and TV monitoring system, the deficiency of this hydraulic pressure lift control system is:
1, the selection of lifting jack in the system and pumping plant adopts the mode of switch combination selective relay to realize, and is very not directly perceived.It requires operating personnel must extremely understand the operating mode of system, be familiar with very much binary coding simultaneously, otherwise maloperation probably causes serious consequence.Because switch, relay too many (selection of lifting jack and pumping plant adopts the mode of switch combination selective relay to realize), appliance wiring is complicated, has increased the workload of plant maintenance.
2, the lifting jack of working in the system, pumping plant, laser do not have any problem, but then bring very big difficulty to the workmen in the installation and the debug phase of equipment by the operation of PC1 centralized control in normal lifting and decline process; Because various detecting sensors are installed in the scene, need to adjust repeatedly just can find the optimum position, and operator's console is away from the scene, installation personnel can't be operated, add the mode that adopts communication between PC1 and other PC, the speed of communication is less than the speed of hardware direct control, so the used time of Installation and Debugging is several times of execute-in-place (control on the spot).
3, the application target of camera system and TV monitoring system is to allow operating personnel understand the scene, but because camera system must have suitable position and angle that camera is installed, and the lifting jack of hydraulic lifting system and pumping plant are installed in the high-altitude of tens meters even up to a hundred meters, hydraulic lifting system generally is used for space-constrained construction occasion, therefore the scene is difficult to provide not only convenient installation lifting jack and pumping plant but also the convenient platform that camera is installed, so uses camera system and the both uneconomical also very difficult effect of really playing expection of TV monitoring system in hydraulic lifting system.
4, because pumping plant has certain distance to lifting jack, exist oil circuit to lose, the oil pressure detecting sensor is installed in the size that (power system) on the pumping plant can not really reflect load.
5, laser range finder is communicated by letter by RS232 with Programmable Logic Controller, although having adopted photoisolator extends transmission distance, but the RS232 interface can only point-to-point communication, each Programmable Logic Controller can only connect a laser, many laser can not be connected on the Programmable Logic Controller, so dirigibility and on-the-spot adaptability are relatively poor.
6, the data in the lifting process are not kept in the database, can't analyze and sum up field data afterwards, are unfavorable for the improvement of system yet.
Summary of the invention
The technical problem to be solved in the present invention is: the present invention aims to provide a kind of hydraulic pressure lift supervisory system and utilization in hydraulic pressure lift control thereof based on configuration software, this system line is simple, operation is directly perceived, measure more accurate, great system no matter, the mode of direct selection is all adopted in the selection of lifting jack, can Long-distance Control can control on the spot again, realize the supervision of system and the inquiry of historical data with configuration software, more adapt to the hydraulic pressure lift monitoring of high capacity control.Be used for hydraulic pressure lift and control existing the problems referred to above to solve existing hydraulic pressure lift control system.
The technical scheme that solves its above-mentioned technical matters is:
A kind of hydraulic pressure lift supervisory system, it is characterized in that: this supervisory system is by host computer, slave computer and data acquisition system (DAS) are formed, described host computer is to have monitoring software to realize the supervisory control comuter of system monitoring and data management, n the field controller that described slave computer is made up of n the Programmable Logic Controller that has write logic control master routine and adjusted in concert subroutine, n field controller is installed in respectively on y the hydraulic power unit, and link to each other with supervisory control comuter by real-time network, each field controller control m platform hydraulic pressure lift lifting jack, described data collector comprises and is installed in the displacement transducer that is used to detect piston displacement on each lifting jack master top, detect the pressure transducer of oil-in pressure, be installed in be used on the ground tackle up and down to detect ground tackle degree of tightness state near switches set and be installed in the laser that is used for the detection means height on each suspension centre; Displacement transducer, pressure transducer, be connected with field controller by umbilical cable respectively near switches set, laser is connected with field controller or supervisory control comuter by RS422 or RS485 mouth, and the span of above-mentioned m, n, y is: 1≤m≤4,1≤n≤32,1≤y≤32.
Another feature of the present invention is: described slave computer and host computer are formed distributed control network, and each node in the network all can be used as transmission and the reception that main website carries out data, can finish data link between multinode automatically by the data chained list is set.
Another feature of the present invention is: the application method of above-mentioned hydraulic pressure lift supervisory system in hydraulic pressure lift control, it is characterized in that: the control of described hydraulic pressure lift supervisory system in hydraulic pressure lift is the control of a kind of system, and the control of described system comprises distance control mode and control model on the spot:
Distance control mode is the superlative degree of system, all operations are all finished at host computer-supervisory control comuter, this moment, the operation of all field controllers was invalid, under this mode, can do manually, control automatically, finish manual effective controls such as lifting, decline, tight anchor, loose anchor Dan Ding, Duo Ding, single suspension centre, many suspension centres; Can set the top pressure on each top, guarantee the safety of system, thus also can change by the size that changes the proportioning valve opening lifting jack stretch cylinder, cylinder speed contracts.
Control model is after the supervisory control comuter mandate on the spot, slave computer---field controller controls on the spot-and be that the site operation personnel can reach manual operation automatically to the top and the pump of having authorized.
Owing to adopt technique scheme, hydraulic pressure lift supervisory system of the present invention and the utilization in hydraulic pressure lift control thereof have following beneficial effect:
1, system configuration is more reasonable:
Hydraulic pressure lift supervisory system of the present invention is by host computer, slave computer and data acquisition system (DAS) are formed, slave computer and host computer are formed distributed control network, described host computer is to have monitoring software to realize the supervisory control comuter of system monitoring and data management, n the field controller that described slave computer is made up of n the Programmable Logic Controller that has write logic control master routine and adjusted in concert subroutine, n field controller is installed on the hydraulic power unit respectively, and link to each other with supervisory control comuter by real-time network, each field controller control m platform hydraulic pressure lift lifting jack, described data collector comprises and is installed in the displacement transducer that is used to detect piston displacement on each lifting jack master top, detect the pressure transducer of oil-in pressure, be installed in be used on the ground tackle up and down to detect ground tackle degree of tightness state near switches set and be installed in the laser that is used for the detection means height on each suspension centre; Displacement transducer, pressure transducer are connected with field controller by umbilical cable respectively near switches set, and laser is connected with field controller by RS422 or RS485 mouth, and can communicate by letter with supervisory control comuter simultaneously, and system configuration is more reasonable.
2, adopt distributed frame, design function is powerful, fault-tolerant ability is strong, the reliability height, and security is good.
The present invention's hydraulic pressure lift supervisory system is made up of host computer and slave computer.Host computer-supervisory control comuter uses industrial computer, finishes the design and the exploitation of configuration software, realizes the monitoring and the Data Detection of total system.Slave computer (field controller) adopts powerful, the reliability height, Programmable Logic Controller easy to maintenance and antijamming capability is strong, field controller is dispersed on each suspension centre, link to each other with main control computer by real-time network, this is a kind of network that uses token bus communication, each node in the network-promptly: supervisory control comuter or each Programmable Logic Controller all can be used as transmission and the reception that main website carries out data, by being set, the data chained list can finish data link between supervisory control comuter and the field controller automatically, this bus type topological structure has bigger dirigibility, be easy to expand and safeguard, satisfied system expandability requirement.
Owing to adopted distributed control technology, can guarantee that whole network can not collapse because of certain website fault, has improved the stability of system.The computing machine of remote monitoring simultaneously, field controller are equipped with the brake hard key and realize promptly stopping, and guarantee security of system.
3, the cost performance of system is higher.It not only can monitor system, and can control, and its control has good remote-controllable and real-time, and is easy and simple to handle, can Long-distance Control, also can control on the spot:
The computer network control system of hydraulic pressure lift supervisory system of the present invention can allow user's remote starter and the flow that stops pumping plant, remote adjustment pumping plant, pressure and control pumping plant finish exercises (as the cylinder of stretching, contract of master cylinder easily; Tight and the pine of upper and lower holder etc.).The expert can be by the duty of Intemet at strange land Real Time Observation field apparatus simultaneously.
Monitor system operation of the present invention is easy, and under the Long-distance Control state, all operations are finished by supervisory control comuter, and field controller can only carry out urgency and stop operation; After the supervisory control comuter mandate, each field controller can carry out operations such as automatic, manual to any one or more in 4 lifting lifting jack.And, on main control computer, only just can carry out various control operations with mouse or keyboard, if the industrial computer of employing touch-screen, mouse or keyboard also need not, operating personnel directly press touch-screen and get final product.
In addition, the speed governing value that hydraulic pressure lift supervisory system of the present invention can be accepted the input of remote monitoring computer keyboard realizes electrical speed regulation control to elevator system, also can revise the highest pressure limiting of each lifting jack and pumping plant, monitoring and easy to operate at the remote monitoring computing machine according to the load condition of different engineerings.
4, monitoring software has been realized the system management authority of different stage, and the Systems Operator can select operating mode, checks trend curve and form etc.; The system engineer can make amendment to monitoring software and slave computer software according to actual conditions.The operating personnel that obtain authority can be in independent operation or the on line operation of central control room realization to any lifting jack and pumping plant, and manual operations all under automatic running status is inoperative, effectively prevents maloperation.
5, extendability, adaptability are strong
Owing to adopted distributed frame, can carry out hardware configuration according to the specific requirement of each engineering, can on-the-spot carry out " logical combination " by software simultaneously to hardware configuration, system extension or temporarily increase certain when action, need not to increase any electric switch on the supervisory control comuter, only need on " system operation " picture, to increase corresponding button and link with field controller and get final product, greatly improved the adaptability of control system by program.
6, data acquisition modes is more reasonable, reflection is truer, and data can be stored in the database.
The present invention is installed in the oil-in of every lifting jack with pressure transducer, has reduced the oil pressure loss, has reflected the load of lifting jack more realistically; Distance detecting in different ways, the member height of long distance detects and adopts laser to carry out absolute value to measure, short-range piston displacement detects to be adopted displacement transducer to carry out relative value to measure, data are more accurate; Adopt configuration software dynamically to show each on-the-spot data in addition and with these data-storings in database, can be convenient to analyze and sum up by all data in the data base querying lifting process after engineering finishes.
Because above-mentioned advantage, the present invention's hydraulic pressure lift supervisory system and the application method in hydraulic pressure lift control thereof are specially adapted to the synchronous lifting control of large-scale component.
Below, in conjunction with the accompanying drawings and embodiments the present invention's a kind of hydraulic pressure lift supervisory system and the technical characterictic of the utilization in hydraulic pressure lift control thereof are further described.
Description of drawings:
Fig. 1: hydraulic pressure lift supervisory system structural representation of the present invention;
Fig. 2: hydraulic pressure lift supervisory system discrepancy in elevation synchro control block diagram of the present invention;
Fig. 3: the system software composition frame chart that the utilization of hydraulic pressure lift supervisory system of the present invention in hydraulic pressure lift control adopted;
Control system among the PLC of Fig. 4: write slave computer---each field controller promotes program flow diagram;
Control system letdown procedure process flow diagram among the PLC of Fig. 5: write slave computer---each field controller;
Fig. 6: the displacement control subprogram A process flow diagram in the control system lifting program;
Fig. 7: the discrepancy in elevation control subprogram B process flow diagram in the control system lifting program;
Fig. 8: the displacement control subprogram C process flow diagram in the control system letdown procedure;
Fig. 9: the discrepancy in elevation control subprogram D process flow diagram in the control system letdown procedure;
Figure 10: the pressure control subroutine process flow diagram of control system;
Figure 11: hydraulic pressure lift supervisory system of the present invention connects block diagram;
Figure 12: laser connected mode synoptic diagram;
Figure 13～Figure 19 moves KingView software picture view:
Figure 13-system enters picture, Figure 14-initial picture, and picture before Figure 15-system login,
Operation screen after Figure 16-system login, Figure 17-top pressure is set picture,
Figure 18-warning picture, Figure 19-operation monitoring picture.
Embodiment:
Embodiment one:
A kind of hydraulic pressure lift supervisory system, by host computer, slave computer and data acquisition system (DAS) are formed, described host computer 8 is to have monitoring software to realize the supervisory control comuter of system monitoring and data management, 8 field controllers 7 that described slave computer is made up of 8 Programmable Logic Controllers that write logic control master routine and adjusted in concert subroutine, 8 field controllers 7 are installed in respectively on 4 hydraulic power units 6, and link to each other with supervisory control comuter by real-time network, 4 hydraulic pressure lift lifting jack of each field controller 7 control, described data collector comprises that being installed in each lifting jack 4 master pushes up the displacement transducer 3 that is used to detect piston displacement, detect the pressure transducer 5 of oil-in pressure, be installed in be used on the ground tackle up and down to detect ground tackle degree of tightness state near switches set 2 and be installed in the laser 1 that is used for the detection means height on each suspension centre; Displacement transducer 3, pressure transducer 5 are connected with field controller by umbilical cable respectively near switches set 2, and laser is connected (referring to Fig. 1) by RS422 or RS485 mouth with field controller or supervisory control comuter, among Fig. 1, and the 9th, netting twine.
Above-mentioned hydraulic pressure lift supervisory system, form distributed control network by slave computer and host computer, its real-time network is the token bus communication network, each node in the network---supervisory control comuter and each Programmable Logic Controller all can be used as transmission and the reception that main website carries out data, and the data that can finish automatically between supervisory control comuter and the field controller by the data chained list that is provided with link.
As a kind of conversion of the embodiment of the invention, the quantity n of the field controller 7 that the described Programmable Logic Controller that has write logic control master routine and adjusted in concert subroutine is formed can increase or reduce, and general span is: 1≤n≤32; The platform of the hydraulic pressure lift lifting jack of each field controller 7 control is counted m also can be increased or reduce, the span of general m is: 1≤m≤4, the quantity of corresponding hydraulic power unit 6 also is to increase or to reduce, can be that a hydraulic power unit 6 is installed 1 field controller 7, also can be that a hydraulic power unit 6 is installed 2 even 3,4 field controllers 7, that is to say: n field controller can be installed in respectively on y the hydraulic power unit, and the span of y is 1≤y≤32.
As a kind of conversion of the embodiment of the invention, the emergency stop switch of safety effect has been installed all on supervisory control comuter 8 of the present invention and the field controller 7.
Embodiment two:
The utilization of above-mentioned hydraulic pressure lift supervisory system in hydraulic pressure lift control---promptly: above-mentioned hydraulic pressure lift supervisory system is used for the method for hydraulic pressure lift control.
The method that described lifting supervisory system is used for hydraulic pressure lift control is a kind of system control method, and the control of described system comprises distance control mode and control model on the spot:
Distance control mode is the superlative degree of system, all operations are all finished at host computer-supervisory control comuter, this moment, the operation of all field controllers was invalid, under this mode, can do manually, control automatically, finish effectively controls such as lifting, decline, tight anchor, loose anchor Dan Ding, Duo Ding, single suspension centre, many suspension centres; Can set the top pressure on each top, guarantee the safety of system, thus also can change by the size that changes the proportioning valve opening lifting jack stretch cylinder, cylinder speed contracts.
Control model is on the spot: after the supervisory control comuter mandate, slave computer-field controller is controlled on the spot,---be that the site operation personnel can reach manual operation automatically to the top and the pump of having authorized.
The control of described system by means of host computer and slave computer and write host computer and slave computer in system software finish, software in said write host computer-supervisory control comuter is monitoring software, comprise the total picture of technological process, each lifting jack and the demonstration of pumping plant real-time parameter, systematic parameter setting, system operation picture, warning picture, history curve, report capability, database function, the slave computer software among the PLC of said write slave computer-each field controller comprises automatic control program, manual control program, adjusts control program (referring to Fig. 3).
The described logic control master routine of being finished by slave computer field controller 7 comprises lifting program and letdown procedure and corresponding displacement control subprogram, discrepancy in elevation control subprogram, pressure control subroutine.
The sequence of movement of lifting program is: it is tight up to casting anchor 1. tightly to cast anchor, 2. cylinder contracts: in the cylinder process that contracts if then cylinder contracts on the anchor limit on the pine of limit in piston arrives 3# position, 3. pine goes up anchor until last anchor pine: carry out simultaneously with step 2,4. it is tight up to last anchor tightly to go up anchor, 5. stretch cylinder to the 4# position: this step is stretched cylinder for band carries, require adjusted in concert, if piston displacement, the suspension centre discrepancy in elevation and pressure then enter corresponding displacement control subprogram, discrepancy in elevation control subprogram when surpassing setting range, 6. Panasonic's anchor: then cylinder limit Panasonic anchor is stretched to the pine of casting anchor in the limit when piston is stretched cylinder to the 2# position, 7. gets back to step 1.;
In the lifting process, above-mentioned 1# position is meant lifting jack master cylinder lower limit, and the 2# position is meant lifting jack master cylinder lower limit load transfer position, and the 3# position is meant lifting jack master cylinder upper limit load transfer position, and the 4# position is meant lifting jack master cylinder upper limit (referring to Fig. 4);
Displacement control subprogram A in the lifting process is: in carrying out step 5 process, if the displacement Ln and the 1# top amount of piston displacement L of certain top piston
1Difference DELTA L=Ln-L
1When surpassing setting value, the proportioning valve of then controlling this top carries out PID to be regulated, and increases or reduce the proportioning valve openings of sizes, stretches cylinder speed thereby change lifting jack, up to difference go to zero (referring to Fig. 6);
Discrepancy in elevation control subprogram B is: in carrying out step 5 process, if certain suspension centre height H n and 1# suspension centre height H
1High difference DELTA H=Hn-H
1When surpassing setting value, the proportioning valve of then controlling this suspension centre correspondence carries out PID to be regulated, and increases or reduces the proportioning valve openings of sizes, thereby change the flow of proportioning valve, up to high difference go to zero (referring to Fig. 2, Fig. 7).
Described letdown procedure of being finished by slave computer field controller 7 and displacement control subprogram thereof, discrepancy in elevation control subprogram, pressure control subroutine are as follows:
The sequence of movement of letdown procedure is: it is tight until casting anchor 1. tightly to cast anchor, 2. cylinder contracts, 3. when the cylinder that contracts anchor on the pine during to the 1# position, time-delay only arrives the 3# position up to completing steps 4 behind the last anchor pine, 4. stretch cylinder, it is 5. tight when stretching cylinder to the 3# position that upward anchor is tight up to last anchor, 6. stretch cylinder, 7. the Panasonic's anchor-pine back time-delay of casting anchor arrives the 2# position up to completing steps 8 and ends when stretching cylinder to the 4# position, 8. contract cylinder to the 2# position: this step is carried the cylinder that contracts for band, therefore require adjusted in concert, if piston displacement, the suspension centre discrepancy in elevation and pressure then enter corresponding displacement control subprogram or discrepancy in elevation control subprogram when surpassing setting range, 9. get back to step 1 (referring to Fig. 5);
In the decline process, above-mentioned 1# position is meant lifting jack master cylinder lower limit, and the 2# position is meant lifting jack master cylinder lower limit load transfer position, and the 3# position is meant lifting jack master cylinder upper limit load transfer position, and the 4# position is meant lifting jack master cylinder upper limit;
Decline process displacement control subprogram C is: carrying out step 8. in the process, if certain top amount of piston displacement Ln and 1# top amount of piston displacement L
1Difference DELTA L=Ln-L
1When surpassing setting value, the proportioning valve of then controlling this top carries out PID to be regulated, and increases or reduce the proportioning valve openings of sizes, stretches cylinder speed thereby change lifting jack, up to difference go to zero (referring to Fig. 8);
Decline process discrepancy in elevation control subprogram D is: carrying out step 8. in the process, if certain suspension centre height H n and 1# suspension centre height H
1High difference DELTA H=Hn-H
1When surpassing setting value, the proportioning valve of then controlling this suspension centre correspondence carries out PID to be regulated, and increases or reduces the proportioning valve openings of sizes, thereby change the flow of proportioning valve, up to high difference go to zero (referring to Fig. 9).
Pressure control subroutine is: in entire work process, with the pressure P n of every lifting jack and the highest set pressure P on this top
IfRelatively, if less than setting value then system work on, if promptly: Pn 〉=P more than or equal to setting value
IfSystem-down and on screen, show relevant information (referring to Figure 10) then.
Hydraulic pressure lift supervisory system utilization monitoring software of the present invention carries out Long-distance Control to system and all data is managed, and its core is a configuration software.This configuration software be a kind of can be from equipment such as Programmable Logic Controller, various data collecting cards image data in real time, send whether normally software package of control command and supervisory control system running, configuration software can make full use of the powerful graphics edition function of Windows, with animation mode display monitoring equipment running status, constitute monitored picture easily and realize control function, and can generate form, historical data base etc.Be the Software Development Platform that the industrial monitoring and control software exploitation is provided convenience, improved the quality of industrial control software on the whole, shortened the construction cycle.
Monitoring software of the present invention is to adopt KingView 6.5 as the monitoring software development platform, operate on the Window2000/XP/NT, form by engineering browser TouchMAK and picture operational system TouchVEW two parts, wherein: TouchMAK is the core and the management development system of KingView software, its function is to set up the animation display window, can conveniently set up real-time curve chart, historical trend figure and alarm logging demonstration by the tool box that it provides.TouchVEW is the running environment that shows the graphical window of setting up among the TochMAK, the structure of monitor system software such as Fig. 3.KingView 6.5 drivers communicate by Controller Link network and PLC, visit relevant register respectively, control with the actual value of obtaining on-the-spot each technological parameter or to the switching value at scene and the opening degree of analog quantity such as each proportioning valve.
Monitoring software of the present invention has been realized the requirement of hydraulic pressure lift observing and controlling substantially, the simulation of succinct image the technological process (as Figure 14) of lifting jack and pumping plant, operating personnel can understand on-the-spot whole operation conditionss on the computer screen of central control room, comprise various warnings.The operating personnel that obtain authority can be in independent operation or the on line operation of central control room realization to any lifting jack and pumping plant, and manual operations all under automatic running status is inoperative, effectively prevents maloperation.Monitoring software of the present invention has following function:
1) Presentation Function: demonstrations such as technological process, measured value, equipment running status, operator scheme, warning, picture such as call at function;
2) warning is handled: write down information such as warning time of origin, fault content, and warning message is managed;
3) historical trend function: the jack piston displacement at scene, lifting jack oil-in oil pressure, member height etc. are shown with curvilinear figure.Each trend curve picture displayed mainly comprises picture title, time, trend, explanation etc.;
4) database storing and visit: realize the automatic establishment when the Access historical data base moves in each system and press level record in second, the storage of field data;
5) systematic parameter, controller parameter are made amendment and store, can realize the noiseless switching between supervisory system automatic/hand/adjustment operator scheme;
6) administration authority: realize the system management authority of different stage, the Systems Operator can select operating mode, checks trend curve and form etc.; The system engineer can make amendment to monitoring software and slave computer software according to actual conditions.
The method of operating that above-mentioned hydraulic pressure lift supervisory system is used for hydraulic pressure lift control is as follows:
One, system connects: controlling 4 Tai Ding, with each field controller, to have that 4 field controllers are placed on 4 hydraulic power units be example, as shown in figure 11, be connected on the corresponding socket of field controller by the detecting element of umbilical cable 4 lifting jack in the same suspension centre; By telecommunication cable field controller and supervisory control comuter are together in series, realize communicating by letter between each controller and the supervisory control comuter, laser is connected with supervisory control comuter or field controller by RS422 or RS485 mouth, as Figure 12.
According to embodiment one, the quantity n of described field controller can increase or reduce, the platform of the hydraulic pressure lift lifting jack of each field controller control is counted m also can be increased or reduce, the quantity y of corresponding hydraulic power unit can increase or reduce, the span of general m, n, y is: 1≤m≤4,1≤n≤32,1≤y≤32; When field controller and the variation of hydraulic pressure lift lifting jack platform number, its ways of connecting roughly the same.
Two, operation configuration software:
(1) enter original state: as shown in figure 13, double-click the KingView software on the desktop, system chart (3) (2) as current engineering, is clicked the running tool bar in the upper right corner, system enters initial picture shown in Figure 14.
(2) picture switches: click " picture supervision " menu in the initial picture upper left corner as shown in figure 14, in the submenu that ejects, select the menu that will enter or click below the initial picture as shown in figure 14 in 8 buttons any can enter respective picture, as click " system operation " button of picture below, enter system operation picture (referring to Figure 15).
(3) system login: " login " button of " login user " in click Figure 15 picture upper left corner " System menu " or click picture below is also inputed correct password and is promptly finished system login, referring to Figure 16, if do not login, then as shown in figure 15, word on all buttons is grey, can only carry out the picture switching and check system state, can't operating system.Realized the system management authority of different stage.
(4) screen operator:
After the login, the system operation picture as shown in figure 16, the literal blackening in the button can be operated button.Control pilot lamp on the spot and go out this moment, and system is in the Long-distance Control state.
(5) controlled top selection operation: under the Long-distance Control state, the 1# top～12# on left side top is gating effectively, pushes up that then this top of gating can be to the jacking row Long-distance Control of choosing if will control which platform, and the 1# top～12# on the right pushes up and then do not allow gating; In like manner, under state of a control on the spot, the 1# top～12# on the right top is gating effectively, if will control which platform pushes up then this top of gating and can control on the spot the jacking row of choosing, and the 1# top～12# on the left side pushes up and then do not allow gating.Shown in Figure 16,1～6# top is in the Long-distance Control state.
" automatic/hand/adjustment " button on the picture left side is an interlocking-type, can only select a kind of mode of operation at every turn, and automatic control mode is the main method of operation of control system, promotes normally and descend all to finish with this mode; Manual control mode is the auxiliary method of operation of control system, then uses manual operation when system only requires local modulation, has only when system is in the installation and the state of releasing just with adjusting operation.
(6), MTP is set: click Figure 16 picture below " pressure demonstration " button and enter pressure demonstration and top pressure setting picture (referring to Figure 17); in the top pressure input system of load distribution situation according to engineering with each pumping plant and lifting jack; system can set the highest pressure limiting by input value; the shutdown if certain pumping plant or lifting jack superpressure are promptly reported to the police, and in " warning picture " demonstration relevant information.
When operation interface switches to the warning picture (referring to Figure 18), can recognize at length when which kind of operation who operator has carried out to system; The warning of which kind of type has taken place in system.Can see that from Figure 18 the Systems Operator has carried out the top pressure setting to oil pressure 1, oil pressure 2, simultaneously gating top 1, top 2.
Three, remote control operation:
(1) remote auto operation: at picture shown in Figure 16: click the Auto button, " automatically " pilot lamp is bright, this moment, system was in auto state, click " lifting " button, " lifting " pilot lamp is bright, the lifting jack that selection will be controlled under the Long-distance Control state (1# top～6# top is controlled among the figure), click " starting/time-out " button, when " starting " pilot lamp bright, system can promote operation automatically to controlled jacking row, click " starting/time-out " button once more, " time-out " pilot lamp is bright at this moment, and system is in halted state; If click " decline " button, " lifting " pilot lamp goes out, and " decline " pilot lamp is bright, and system is in " automatic decline " state, then can " descend automatically " to controlled jacking row by above-mentioned steps and operate.
As if information such as the piston displacement of wanting every top of complete observation, oil pressure, clamper states, can switch to operation monitoring picture (referring to Figure 19) by picture by " operation monitoring " button.
(2) remote manual operation: click " manually " button, " manually " pilot lamp is bright, this moment, system was in manual state of a control, the lifting jack that selection will be controlled under the Long-distance Control state, press the manual operation button " stretch cylinder, the cylinder that contracts, tightly go up anchor, Song Shangmao, tightly cast anchor, Panasonic's anchor " in any one can operate accordingly controlled jacking row, the manual operation button is connected when pressing for the some dynamic formula, disconnects when unclamping.
If will in manual procedure, monitor information such as jack piston displacement, clamper state, can click " 1# to 16# top running status " button in the menu, open the picture that will monitor the top.
(3) long-range adjustment operation: long-range adjustment operation and remote manual class of operation seemingly, its difference is: can all unclamp casting anchor on the top during long-range adjustment operation, but when carrying out " Song Shangmao ", " Panasonic's anchor " operation, buzzer warning is pointed out.
In addition, the speed governing value that hydraulic pressure lift supervisory system of the present invention can be accepted the input of remote monitoring computer keyboard realizes electrical speed regulation control to elevator system, also can revise the highest pressure limiting of each lifting jack and pumping plant according to the load condition of different engineerings at the remote monitoring computing machine.
Four, the operation of field controller:
As shown in figure 15, click " control on the spot " button, " control on the spot " pilot lamp is bright at this moment, and system is in state of a control on the spot, if allow which platform top to control then this top of gating on the spot, can control on the spot this jacking row at the controller of correspondence.
On the spot control can carry out too automatically, manually, to adjust its using method of operation identical with automatic control or remote manual control method under the Long-distance Control, repeat no more herein.
Claims (9)
1, a kind of hydraulic pressure lift supervisory system, it is characterized in that: this supervisory system is by host computer, slave computer and data acquisition system (DAS) are formed, described host computer is to have monitoring software to realize the supervisory control comuter (8) of system monitoring and data management, n the field controller (7) that described slave computer is made up of n the Programmable Logic Controller that has write logic control master routine and adjusted in concert subroutine, n field controller is installed in respectively on y the hydraulic power unit (6), and link to each other with supervisory control comuter (8) by real-time network, each field controller control m platform hydraulic pressure lift lifting jack, described data collector comprises and is installed in the displacement transducer (3) that is used to detect piston displacement on each lifting jack master top, detect the pressure transducer (5) of oil-in pressure, be installed in be used on the ground tackle up and down to detect ground tackle degree of tightness state near switches set (2) and be installed in the laser (1) that is used for the detection means height on each suspension centre; Displacement transducer, pressure transducer, be connected with field controller by umbilical cable respectively near switches set, laser is connected with field controller (7) or supervisory control comuter (8) by RS422 or RS485 mouth, the span of above-mentioned m, n, y is: 1≤m≤4,1≤n≤32,1≤y≤32.
2, hydraulic pressure lift supervisory system according to claim 1, it is characterized in that: described slave computer and host computer are formed distributed control network, each node in the network all can be used as transmission and the reception that main website carries out data, can finish data link between multinode automatically by the data chained list is set.
3, hydraulic pressure lift supervisory system according to claim 1 and 2 is characterized in that: be equipped with on supervisory control comuter of this supervisory system (8) and the field controller (7) and can realize the brake hard key that promptly stops.
4, the utilization of the described hydraulic pressure lift supervisory system of claim 1 to 3 in hydraulic pressure lift control, it is characterized in that: the control of described lifting supervisory system in hydraulic pressure lift is the control of a kind of system, and the control of described system comprises distance control mode and control model on the spot:
Distance control mode is the superlative degree of system, all operations are all at host computer---and supervisory control comuter is finished, this moment, the operation of all field controllers was invalid, under this mode, can do manually, control automatically, finish effectively controls such as lifting, decline, tight anchor, loose anchor Dan Ding, Duo Ding, single suspension centre, many suspension centres; Can set the top pressure on each top, guarantee the safety of system, thus also can change by the size that changes the proportioning valve opening lifting jack stretch cylinder, cylinder speed contracts;
Control model is on the spot: after the supervisory control comuter mandate, slave computer---field controller is controlled on the spot,---be that the site operation personnel can reach manual operation automatically to the top and the pump of having authorized.
5, the utilization of hydraulic pressure lift supervisory system according to claim 4 in hydraulic pressure lift control, it is characterized in that: the control of described system by means of host computer and slave computer and write host computer and slave computer in system software finish, software in said write host computer-supervisory control comuter is monitoring software, comprise the total picture of technological process, each lifting jack and pumping plant real-time parameter show, systematic parameter is set, the system operation picture, the warning picture, history curve, report capability, database function, the slave computer software among the PLC of said write slave computer---each field controller comprises automatic control program, manual control program, adjust control program.
6, the utilization of hydraulic pressure lift supervisory system according to claim 5 in hydraulic pressure lift control is characterized in that: the described logic control master routine of being finished by slave computer field controller 7 comprises lifting program and letdown procedure and corresponding displacement control subprogram, discrepancy in elevation control subprogram, pressure control subroutine.
7, the utilization of hydraulic pressure lift supervisory system according to claim 6 in hydraulic pressure lift control is characterized in that: described lifting program of being finished by slave computer field controller 7 and displacement control subprogram thereof, discrepancy in elevation control subprogram are as follows:
The sequence of movement of lifting program is: it is tight up to casting anchor 1. tightly to cast anchor, 2. cylinder contracts: in the cylinder process that contracts if then cylinder contracts on the anchor limit on the pine of limit in piston arrives 3# position, 3. pine goes up anchor until last anchor pine: carry out simultaneously with step 2,4. it is tight up to last anchor tightly to go up anchor, 5. stretch cylinder to the 4# position: this step is stretched cylinder for band carries, require adjusted in concert, if piston displacement, the suspension centre discrepancy in elevation and pressure then enter corresponding displacement control subprogram, discrepancy in elevation control subprogram when surpassing setting range, 6. Panasonic's anchor: then cylinder limit Panasonic anchor is stretched to the pine of casting anchor in the limit when piston is stretched cylinder to the 2# position, 7. gets back to step 1.;
In the lifting process, above-mentioned 1# position is meant lifting jack master cylinder lower limit, and the 2# position is meant lifting jack master cylinder lower limit load transfer position, and the 3# position is meant lifting jack master cylinder upper limit load transfer position, and the 4# position is meant lifting jack master cylinder upper limit;
Displacement control subprogram A in the lifting process is: in carrying out step 5 process, if then controlling the proportioning valve on this top when surpassing setting value, the difference of certain top and 1# top amount of piston displacement carries out the PID adjusting, increase or reduce the proportioning valve openings of sizes, stretch cylinder speed thereby change lifting jack, go to zero up to difference;
Discrepancy in elevation control subprogram B is: in carrying out step 5 process, when if the high difference of certain suspension centre and 1# suspension centre surpasses setting value, the proportioning valve of then controlling this suspension centre correspondence carries out PID to be regulated, and increases or reduce the proportioning valve openings of sizes, thereby change the flow of proportioning valve, go to zero up to high difference.
8, the utilization of hydraulic pressure lift supervisory system according to claim 6 in hydraulic pressure lift control is characterized in that: described letdown procedure of being finished by slave computer field controller (7) and displacement control subprogram thereof, discrepancy in elevation control subprogram, pressure control subroutine are as follows:
The sequence of movement of letdown procedure is: it is tight until casting anchor 1. tightly to cast anchor, 2. cylinder contracts, 3. when the cylinder that contracts anchor on the pine during to the 1# position, time-delay only arrives the 3# position up to completing steps 4 behind the last anchor pine, 4. stretch cylinder, it is 5. tight when stretching cylinder to the 3# position that upward anchor is tight up to last anchor, 6. stretch cylinder, 7. Panasonic's anchor when stretching cylinder to the 4# position---the pine back time-delay of casting anchor arrives the 2# position up to completing steps 8 and ends, 8. contract cylinder to the 2# position: this step is carried the cylinder that contracts for band, therefore require adjusted in concert, if piston displacement, the suspension centre discrepancy in elevation and pressure then enter corresponding displacement control subprogram or discrepancy in elevation control subprogram when surpassing setting range, 9. get back to step 1;
In the decline process, above-mentioned 1# position is meant lifting jack master cylinder lower limit, and the 2# position is meant lifting jack master cylinder lower limit load transfer position, and the 3# position is meant lifting jack master cylinder upper limit load transfer position, and the 4# position is meant lifting jack master cylinder upper limit;
Decline process displacement control subprogram C is: carrying out step 8. in the process, if the difference of certain top and 1# top amount of piston displacement is during above setting value, the proportioning valve of then controlling this top carries out PID to be regulated, increase or reduce the proportioning valve openings of sizes, stretch cylinder speed thereby change lifting jack, go to zero up to difference;
Decline process discrepancy in elevation control subprogram D is: carrying out step 8. in the process, when if the high difference of certain suspension centre and 1# suspension centre surpasses setting value, the proportioning valve of then controlling this suspension centre correspondence carries out PID to be regulated, increase or reduce the proportioning valve openings of sizes, thereby change the flow of proportioning valve, go to zero up to high difference.
9, the utilization in hydraulic pressure lift control according to claim 7 or 8 described hydraulic pressure lift supervisory systems; it is characterized in that: described pressure control subroutine is: in entire work process; the pressure of every lifting jack and the highest set pressure on this top are compared; if less than setting value then system work on, if more than or equal to setting value system-down and on screen, show relevant information then.
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| CNB2005101205279A CN100478813C (en) | 2005-12-22 | 2005-12-22 | Hydraulic hoisting monitor system and its use in hydraulic hoisting control |
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| CNB2005101205279A CN100478813C (en) | 2005-12-22 | 2005-12-22 | Hydraulic hoisting monitor system and its use in hydraulic hoisting control |
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