CN102541018A - Centralized detection and control system for sealing test - Google Patents
Centralized detection and control system for sealing test Download PDFInfo
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- CN102541018A CN102541018A CN2012100103691A CN201210010369A CN102541018A CN 102541018 A CN102541018 A CN 102541018A CN 2012100103691 A CN2012100103691 A CN 2012100103691A CN 201210010369 A CN201210010369 A CN 201210010369A CN 102541018 A CN102541018 A CN 102541018A
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Abstract
The invention discloses a centralized detection and control system for a sealing test. The centralized detection and control system comprises an upper computer control and display subsystem, a data acquisition and conversion center and working substations, wherein the output of each working substation is connected with the input of the data acquisition and conversion center; the output of the data acquisition and conversion center is connected with the upper computer control and display subsystem; the upper computer control and display subsystem is formed by connecting three industrial control computers and an Ethernet switch and is used for human-machine interaction; the data acquisition and conversion center consists of a programmable logic controller and a data conversion card; the programmable logic controller is used as a data server and used for acquiring and controlling a field signal; the data conversion card is used for converting a high speed real-time data amount to be detected; the working substations are test beds of which the quantity can be increased or decreased; and a controller of each substation is provided with a port for Modbus serial communication. Through adoption of the centralized detection and control system, centralized detection for the sealed conventional data amount is realized; furthermore, a new logic interface can be constructed for control on the system, so that the research work efficiency is improved, and the equipment investment is reduced.
Description
Technical field
The present invention relates to the Detection & Controling field of mechanical seal, be specifically related to a kind of centralized detecting and control system of leakage test.
Background technology
Sealing belongs to basic components in the mechanical engineering, to the different practical applications of sealing, need set up different testing tables.Traditional experiment table all is a testing table configuration relevant detection and control system.If the foundation of other target experiment table is arranged, then needs recovery test equipment.In recovery test equipment, detection, control system also will rebulid.Owing to be engaged in the personnel of Research on Seal all is the mechanical major graduation mostly; So, aspect the control of Data Detection, testing table, need carry out the study and the duplication of labour of low level; Caused bigger energy waste, the energy of research is not to concentrate on the research contents.But among spending in the design that detects control system, purchasing, debug.
Engineering research not only needs the foundation and the numerical simulation of theoretical model, also need be through the relevant notional result of verification experimental verification.For this reason, in annual postgraduate's the work, all need spend more energy and put among the construction of pilot system, and the foundation of pilot system is not only basic mechanical system, also need set up relevant detection and control system.Because each postgraduate's research contents is different, the testing table that certain postgraduate sets up, the classmate of next just needs to improve or remove, and need carry out many duplication of labour more again thus.Some breadboard testing equipments are a lot, and each experiment table all has corresponding measurement and control device, and finally having caused each experiment table all is the equipment that separates, and the speed of retrofit is very slow.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art; The object of the present invention is to provide a kind of centralized detecting and control system of leakage test; Realize the centralized detecting of sealing routine data amount; And can also set up new logic interface to the control of system, improve research work efficient, reduction equipment drops into.
In order to achieve the above object, the technical scheme taked of the present invention is:
A kind of centralized detecting of leakage test and control system; Comprise PC control and display subsystem A, data acquisition and switching center B and work substation C; The output of work substation C is connected with the input of data acquisition with switching center B; Data acquisition is connected with display subsystem A with PC control with the output of switching center B, and PC control and display subsystem A are formed by connecting first industrial computer 6, second industrial computer 7, the 3rd industrial computer 8 and Ethernet switch 1, realize man-machine interaction; Data acquisition and switching center B are made up of a programmable logic controller (PLC) 5 and data conversion card 3, and programmable logic controller (PLC) 5 is gathered and the control on-site signal as data server, and data conversion card 3 need detect the conversion of high-speed real-time amount; Work substation C is the testing table that can increase and decrease, and a port that is used for the Modbus serial communication is all arranged on the controller of each substation.
Described first industrial computer 6 is connected to Ethernet switch 1 as the client of Ethernet through netting twine, the data in the visit programmable logic controller (PLC) 5; Second industrial computer 7 is responsible for the demonstration of general data amount, the control of storage and switch, and it is connected to Ethernet switch 1 through netting twine, realizes the operation to programmable logic controller (PLC) 5 data; The 3rd industrial computer 8 is connected to Ethernet switch 1 through netting twine, as client data in the programmable logic controller (PLC) 5 is operated, and is designed for and adds new software control system.
Described PC control and display subsystem A operate data server programmable logic controller (PLC) 5 through the Ethernet based on the Modbus Transmission Control Protocol, and programmable logic controller (PLC) 5 obtains all on-the-spot data of experiment through input/output module 2 and serial communication 4.
Each testing table controller of described work substation C is supported Modbus serial communication function, with the exchange of realization with the host computer data.
The centralized detecting of described a kind of leakage test and control system adopt data collecting card 9 for the monitoring of high-speed real-time amount; The high-speed real-time amount is given data collecting card 9 through the input/output module 2 back serials of programmable logic controller (PLC) 5 through data converter 3, is handled by the data acquisition program of industrial computer 6 again.
Advantage of the present invention is: compare with traditional detection control system; The maximum superiority of native system is its dirigibility; Each testing table among the work substation C all can increase and decrease, and when needs are set up new testing table, only needs new controller is connected in the serial communication 4 among the figure through serial ports; Programmable logic controller (PLC) 5 need not change original program, only need add that new substation handling procedure gets final product.For the high-speed real-time amount of testing table, only need be connected on the high speed amount terminal 19 of reservation, in first industrial computer 6, add corresponding program.Each testing table is independently each other, can not influence other test so add or delete some testing tables.When removing a testing table, also only need in first industrial computer 6, second industrial computer 7 program that this is a part of to remove.Second industrial computer 7 is used for sealing routine data quantity set is detected.Control to total system can also be set up new logic interface in the 3rd industrial computer 8, improve research work efficient, reduction equipment input.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is work substation C main website of the present invention and substation connected mode synoptic diagram.
Fig. 3 is the structural representation of work substation C backup system of the present invention.
Fig. 4 is a slave station monitoring logic of the present invention figure.
Fig. 5 is No. two slave station monitoring logics of the present invention figure.
Fig. 6 is No. three slave station monitoring logics of the present invention figure.
Fig. 7 is No. four slave stations of the present invention, No. five slave station monitoring logic figure.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done detailed description.
With reference to Fig. 1; A kind of centralized detecting of leakage test and control system; Comprise PC control and display subsystem A, data acquisition and switching center B and work substation C; The output of work substation C is connected with the input of data acquisition with switching center B, and data acquisition is connected with display subsystem A with PC control with the output of switching center B.
PC control and display subsystem A are the man-machine interaction parts of system; Also be the superiors of system; It is connected to Ethernet switch 1, the first industrial computer 6 through netting twine and is connected to data conversion card 3 through data collecting card 9 by first industrial computer 6, second industrial computer 7, the 3rd industrial computer 8; Dress high-speed data acquistion system software is connected to data conversion card 3 through data collecting card 9 on first industrial computer 6, is used for the dynamic property of test high speed real time data amount is analyzed.First industrial computer 6 is connected to Ethernet switch 1 as the client of Ethernet through netting twine, the data in the visit programmable logic controller (PLC) 5; Second industrial computer 7 is responsible for the demonstration of general data amount, the control of storage and switch, and it is connected to Ethernet switch 1 through netting twine, realizes the operation to programmable logic controller (PLC) 5 data; The 3rd industrial computer 8 is connected to Ethernet switch 1 through netting twine, as client data in the programmable logic controller (PLC) 5 is operated, and is designed for and adds new software control system.
The function of PC control and display part A: the command conversion that will assign becomes the programmable logic controller (PLC) 5 can recognition data; Operate through the data of 1 pair of programmable logic controller (PLC) 5 of Ethernet switch again; PC control and display part A and data acquisition and switching center B exchanges data have two kinds of implementations: for the general data amount that does not need the research trends process; Adopt ethernet communication; From programmable logic controller (PLC) 5, obtain data, the data in the programmable logic controller (PLC) 5 are also from two parts: a part is the data that obtained by input/output module 2; Another part is the data that obtain through serial communication 4, and in these two parts data, the real-time property that obtains through input/output module 2 is high, and the real-time property that serial communication 4 obtains is low relatively.For the high-speed real-time amount that needs the research trends process; Programmable logic controller (PLC) 5 is difficult to reach accuracy requirement; Adopt data collecting card 9 image data: after the data that will gather convert the amount that computer can discern to through data conversion card 3; Be connected to the data collecting card 9 on first industrial computer 6, data collecting card 9 is given computer program with signal, handles record in real time and shows.No matter be the data of which kind of type, system all provides interface flexibly: the general data amount is connected to the input/output module 2 of programmable logic controller (PLC) 5, and the data of testing table can add serial communication 4; The high-speed real-time amount is connected to data collecting card 9.
Control has high-speed data display system and general data supervisory system with display system, corresponds respectively to first industrial computer 6 and second industrial computer 7.The high-speed data display system is used for the collection to the high-speed real-time amount, is used for the dynamic perfromance of system is done analysis, and data collecting card provides software interface flexibly, can carry out secondary development with software very easily; The general data supervisory system is responsible for collection, storage and the control to general data; The general data amount reads from programmable logic controller (PLC) 5 through Ethernet; Require this system can discern the data of Modbus; No matter be high-speed data acquistion system or common amount data monitoring system, all belong to laboratory EPA system: first industrial computer 6, second industrial computer 7, the 3rd industrial computer 8 constitute a LAN through network switch 1 too, and the communication protocol of LAN is ModbusTCP; Monitor system software need be supported ModbusTCP communication, manages through 502 pairs of data of port of programmable logic controller (PLC) 5.When needs add new supervisory system; The monitoring software that only needs exploitation to make new advances; Adding the 3rd industrial computer 8 gets final product; Data can be shared in all LANs, can be published on the net in the time of necessary, and the visit to laboratory data can be realized in the place that can both have access to the internet anywhere.
Data acquisition and switching center B are the cores of supervisory system; Form by a programmable logic controller (PLC) 5 and data conversion card 3; Programmable logic controller (PLC) 5 is connected to each testing table through input/output module 2; The valve of backup system, instrument are received input/output module 2 respectively, and the serial of high-speed real-time amount arrives in the data conversion card 3 through programmable logic controller (PLC) 5 backs, gives first industrial computer 6 among PC control and the display part A again; Programmable logic controller (PLC) 5 is through data acquisition and the control of serial communication 4 to each slave station; All data are all passed through programmable logic controller (PLC) 5, so programmable logic controller (PLC) 5 is data servers of total system, programmable logic controller (PLC) 5 is connected to Ethernet switch 1 through Ethernet interface; Realize sharing of data, to make things convenient for industrial computer among PC control and the display part A to the visit and the control of data.
It is very high that mechanical seal concentrates monitoring and control system that programmable logic controller (PLC) 5 is required, and requires it can have Ethernet and two kinds of communication functions of serial ports simultaneously; On the other hand, for whole breadboard data acquisition, require its analog quantity and digital quantity that extendible interface can both be provided; Select for use the principle of programmable logic controller (PLC) to realize that as far as possible at different levels all is same company; If on each rank, the manufacturer of programmable logic controller (PLC) is not a producer, and then the speed of its communication interface can be received certain influence; Though the programmable logic controller (PLC) of different manufacturers all provides the MODBUS agreement; But the speed of its communication is still unstable, can only reduce the coordination that communication speed is realized communication sometimes.
The system that work substation C forms is the main body of experimental system; Each substation all has the controller of oneself; These controllers will be responsible for the control and the related data collection of each testing table; Each controller will be received serial communication 4 through communication port series connection separately, and each work substation all will be set the station number of a difference and other substation, and substation is addible; So the number of testing table is variable; Controller will send the data of this testing table among data acquisition and the switching center B programmable logic controller (PLC) 5 through serial communication 4, and the high-speed real-time amount in the testing table will insert terminal 19 through amount at a high speed, and serial arrives data conversion cards 3 through input/output module 2 backs.The backup system that each testing table needs all is connected to corresponding backup system interface, and its control system has connected.
According to the Modbus agreement; Multipotency connects 255 slave stations under the main website, but slave station need have the Modbus serial communication interface, and the bus that the Modbus bus protocol is gone up widespread use as an industry obtains the support of most equipment and instrument; In the time will on original basis, increasing new substation; Only need new equipment be added to the end of original system, set station number, set baud rate, the verification mode of communication the same simultaneously with main website; Add new substation handling procedure in main website again and get final product, the connection that the Modbus communication is adopted is as shown in Figure 2.
Backup system is the required auxiliary quantity of various experiments to each substation to be provided; Comprise high pressure gas backup system 15, low pressure gas backup system 16, water under high pressure backup system 17, low-pressure water backup system 18, as shown in Figure 3, the flowmeter F among the figure, pressure transducer P, temperature sensor T provide the simulating signal of 4-20mA; V is a valve; Need the switching value control signal, these signals are received input/output terminal sub-interface 20, signal are given the input/output module 2 of programmable logic controller (PLC) 5 again; High pressure gas backup system 15 provides high pressure gas to store gas-holder S into through High Pressure Air Compressor HM, exports 40MPa with interior high pressure gas through pressure regulator valve again; Low pressure gas backup system 16 provides the low-pressure air of 0.7MPa by air compressor LM, for experiment provides stable low-pressure gas source; Low-pressure water backup system 18 provides the pure water of normal pressure by water tank, for experimental facilities provides low-pressure water; Water under high pressure backup system 17 is made up of water tank and high-pressure hydraulic pump M, and the water under high pressure of the adjustable pressure that reaches as high as 20MPa is provided, and is used for the various occasions that need water under high pressure.All mounting temperature sensor T, pressure transducer P and flowmeter F and CS V on breadboard water and air pipe.The signal of temperature sensor T, pressure transducer P and flowmeter F and CS V all is connected to input/output terminal sub-interface 20.
Principle of work of the present invention is:
The present invention can realize sealing the measurement of test volume commonly used, realizes the control of sealing experiment commonly used, and the testing process of respectively mechanical sealing member commonly used being measured is below narrated.
1 torque and rotating speed detect: the detection of torque rotary speed is to obtain with processing through the detection to the torque rotary speed frequency signal.The frequency signal process signal converter that tachometer torquemeter is measured converts the frequency signal of 24V to, and the high-speed counter of controller detects frequency signal, and the processing of being correlated with just can obtain final rotating speed and frequency signal.This signal will be stored in this locality, on local display interface, show simultaneously, on the other hand, be transferred to main website programmable logic controller (PLC) 5 through serial communication 4, and the user obtains actual torque rotary speed through the data that industrial computer reads on the programmable logic controller (PLC) 5.
2 flow detection and control: programmable logic controller (PLC) 5 passes through the switch of input/output module 2 control electromagnetic valve V to realize the control to flow; Flowmeter F converts flow signal the current signal of 4-20mA to, and this signal sends the input and output terminal 2 of programmable logic controller (PLC) 5 to, and 5 pairs of current signals of programmable logic controller (PLC) are handled accordingly, obtain flow signal.The user carries out reading and writing data through the operation of being correlated with at the interpersonal interactive interface of industrial computer to programmable logic controller (PLC) 5, thereby monitors on-the-spot flow.
3 pressure detection: pressure has two kinds of high pressure, low pressure, and their detection principle is identical, but different in the selection of instrument.All to choose, with the accuracy that guarantees to measure according to the maximum range of actual pressure.Pressure gauge P converts pressure signal the current signal of 4-20mA to, and this signal sends the input and output terminal 2 of programmable logic controller (PLC) 5 to, and 5 pairs of pressure signals of programmable logic controller (PLC) are handled accordingly, obtain pressure data.The user obtains actual force value through the data that industrial computer reads on the programmable logic controller (PLC) 5.
4 temperature detection: temperature detection adopts temperature sensor T, becomes the 4-20mA signal to give the input and output terminal 2 of programmable logic controller (PLC) 5 conversion of signals.Some temperature signal, like heating furnace, temperature is higher, and this just needs to select special temperature sensor.Temperature sensor is given temperature polling instrument with measuring-signal, and temperature polling instrument will detect the temperature signal that each road need be detected, and handles and demonstration.Afterwards, through serial communication 4, temperature signal is transferred to programmable logic controller (PLC) 5 machines, to realize long-range monitoring.
The realization of No. 5 slave station 10 remote monitoring logics: a slave station 10 is the frequency conversion speed-adjusting systems by a station control control, control driven by motor experiment chamber inner main axis rotation.Also need high pressure gas backup system 15, low pressure gas backup system 16, low-pressure water backup system 18 in the experimentation.Need to detect high pressure gas input and the air pressure of exporting in the experimentation; Need monitoring 2 road gas flows; Need to detect the temperature and the flow signal of low-pressure water; Need the control electromagnetic valve switch to close corresponding gas circuit.As shown in Figure 4; The correlative of backup systems such as high pressure gas backup system 15, low pressure gas backup system 16, low-pressure water backup system 18 is through sensor output 4-20mV signal, the control of solenoid valve V and the input/output module 2 that quantity of state is connected to programmable logic controller (PLC) 5; Programmable logic controller (PLC) 5 is with giving computer monitor software through Ethernet with data sharing after the signal Processing.When the user wants to open or close a certain road gas or water; At the corresponding switch of monitoring software the inside control; Through the data that Ethernet is given operation programmable logic controller (PLC) 5, programmable logic controller (PLC) 5 is rewritten corresponding data volume, by input/output module 2 control electromagnetic valve.Operation for a slave station; At first in the monitoring software system of second industrial computer 7, set the travelling speed and the acceleration of motor; Speed and acceleration signal write programmable logic controller (PLC) 5 through Ethernet, and programmable logic controller (PLC) 5 is given a station control through serial communication 4 with this signal.Station control is given frequency converter with speed and acceleration signal through order wire 22 after detecting the signal of speed and acceleration again, and frequency converter configures this two parameters.When the user assigns " startup " order in the supervisory system of second industrial computer 7; This order will be converted into amount of logic; The same route of above-mentioned speed of process and acceleration arrives a station control of a slave station 10; Start-up control terminal 23 on station control control of conversion device, motor is according to speed of setting and acceleration startup.In this process; Tachometer torquemeter 21 passes to station control No. one with the torque rotary speed signal that detects; Obtain the torque rotary speed signal after No. one station control is handled, and these signals are passed to programmable logic controller (PLC) 5 through serial communication 4, read by second industrial computer 7 again.If when detect a certain amount unusual after, promptly shut down according to the mode of setting.In the Control Software of second industrial computer 7 after the modification speed, new speed command will pass to station control No. one in the operational process, and final frequency converter is set at new speed, and is updated to new speed according to the mode of setting.When host computer transmitted the " STOP " order, No. one station control control of conversion device was carried out parking order, realizes the braking and the parking of motor.
The realization of the detection control of 6 No. two slave stations 11: No. two slave stations 11 are high-speed test (HST) platforms of a servo-control system control, and the drive manner of motor and correlation parameter are preset through the computer programming device, its acceleration of control in the actual moving process, speed etc.This testing table needs high pressure gas backup system 15, low pressure gas backup system 16, low-pressure water backup system 18, and is as shown in Figure 5.Operation for No. two slave stations 11: at first; The operator configures speed and acceleration in second industrial computer, 7 monitoring softwares the inside; Rewrite the data in the programmable logic controller (PLC) 5 through Ethernet, programmable logic controller (PLC) 5 is given No. two slave stations 11 through serial communication 4 with data transfer.After No. two station control received speed and acceleration information, degree of will speed up value passed to servo-driver through RS232 serial ports 24; Convert velocity amplitude the analog quantity of 0-10V to, by the analog quantity input that servo-driver is given in the analog quantity output 25 of No. two station controls, driver is worth velocity amplitude according to analog signals and preset maximum (top) speed.After the operator assigned " starting automatically " order, this order passed to station control No. two through same route.After No. two station control will be received order, the solenoid valve of control low pressure gas backup system 16 was opened earlier, controls the oil lubrication pump afterwards again and opens; Through the delay time of setting; Again the water cooling pump is opened, last starter motor, motor will be according to speed of setting and accelerating curve operation.If some during this time links have problem, then send alerting signal, pass to programmable logic controller (PLC) 5.Tachometer torquemeter 26 is given No. two station controls with the torque rotary speed frequency signal, and No. two station controls are handled the back and given local screen displaying, give programmable logic controller (PLC) 5 with data upload simultaneously.The real-time detected temperatures of temperature sensor, when motor temperature surpasses 80 ℃, motor will send " temperature is too high " and report to the police and shut down.When the operator sends " auto stop " when order, this orders after treatment that route reaches station control No. two, and No. two station controls are shut down motor earlier, closes oil cooling successively then, water-cooled is gentle.
The realization of the Detection & Controling of 7 No. three slave stations 12: No. three slave stations 12 are reciprocal experiment tablees of a low speed of servo-drive system control, are used to measure the influence of the to-and-fro movement of infinitesimal displacement for sealing ring.What this requirement of experiment was measured is dynamic process, so correlation parameter will be given data collecting card 9, by the HSDA routine processes of first industrial computer 6.This experiment needs to set the initial and final position of motion, movement velocity, and correlatives such as times of exercise will detect the physical quantitys such as current location, pressure of movement parts simultaneously.As shown in Figure 6, the operator configures initial and the final position in second industrial computer 7, and after the movement velocity, this tittle writes programmable logic controller (PLC) 5 after treatment, and programmable logic controller (PLC) 5 passes to station control through serial communication 4 No. three with signal.No. three station control is confirmed the reference position signal according to the address of data, final position signal and rate signal.After operating personnel assign the " RUN " order; This command signal arrives No. three station controls by serial communication 4 again through programmable logic controller (PLC) 5; This controller confirms that according to velocity amplitude the high-speed pulse output terminal is by high-speed pulse signal 29; This signal passes to the pulse signal input terminal of motor servo driver, and servo-driver control motor turns round with setting speed.In this motion process; Pull pressure sensor 27 detects pressure and displacement respectively with grating rule displacement sensor 28; Near these two physical quantitys are received high speed amount inserts on the terminal 19; Input/output module 2 through programmable logic controller (PLC) 5 arrives data conversion card 3; After handling this tittle, the high-speed acquisition program of giving first industrial computer, 6, the first industrial computers 6 after the amount that data conversion card 3 becomes data collecting card 9 to discern these conversion of signals stores and is shown as performance graph, so that the operator observes its performance.
The realization of the Detection & Controling of 8 No. four slave stations 13, No. five slave stations 14: No. four slave stations 13 are Frequency Converter Control cooling cavity experimental systems with blower fan and driven by motor; No. five slave stations 14 are cavity heating and temperature monitoring systems that temperature controller is controlled.As shown in Figure 7; The operator sets relevant parameter in second industrial computer 7; These parameters write programmable controller 5 through handling, and programmable logic controller (PLC) 5 is given No. four slave stations 13, No. five slave stations 14, the running of controller opertaing device through serial communications 4 with the signal of correspondence.Other signal is received to measure at a high speed and is inserted on the terminal 19 in torque rotational speed meter 31 and the experiment chamber; Arrive data conversion cards 3 through the input/output module of programmable logic controller (PLC) 52, give first industrial computer 6 after the amount that data conversion card 3 becomes data collecting card 9 to discern these conversion of signals.Temperature sensor 30 detects the temperature signal of housing surface, middle and bottom, and gives No. five from station control with it, from station control this signal is passed to programmable controller 5 through serial communication 4 No. five.Second industrial computer 7 will obtain this signal, realize remote monitoring.
All the other slave stations can carry out connecting of detection limit and controlled quentity controlled variable according to concrete testing table by that analogy.Be implemented in the logic control of information detection, storage and driving on the platform, air feed etc.
Claims (5)
1. the centralized detecting of a leakage test and control system; Comprise PC control and display subsystem (A), data acquisition and switching center (B) and work substation (C); It is characterized in that: the output of work substation (C) is connected with the input of data acquisition with switching center (B); Data acquisition is connected with display subsystem (A) with PC control with the output of switching center (B); PC control and display subsystem (A) are formed by connecting first industrial computer (6), second industrial computer (7), the 3rd industrial computer (8) and Ethernet switch (1), realize man-machine interaction; Data acquisition and switching center (B) are made up of a programmable logic controller (PLC) (5) and data conversion card (3); Programmable logic controller (PLC) (5) is as data server; Gather and the control on-site signal, data conversion card (3) need detect the conversion of high-speed real-time amount; Work substation (C) is the testing table that can increase and decrease, and a port that is used for the Modbus serial communication is all arranged on the controller of each substation.
2. the centralized detecting of a kind of leakage test according to claim 1 and control system; It is characterized in that: described first industrial computer (6) is connected to Ethernet switch (1) as the client of Ethernet through netting twine, the data in the visit programmable logic controller (PLC) (5); Second industrial computer (7) is responsible for the demonstration of general data amount, the control of storage and switch, and it is connected to Ethernet switch (1) through netting twine, realizes the operation to programmable logic controller (PLC) (5) data; The 3rd industrial computer (8) is connected to Ethernet switch (1) through netting twine, as client the interior data of programmable logic controller (PLC) (5) is operated, and is designed for to add new software control system.
3. the centralized detecting of a kind of leakage test according to claim 1 and control system; It is characterized in that: described PC control and display subsystem (A) are operated data server programmable logic controller (PLC) (5) through the Ethernet based on the ModbusTCP agreement, and programmable logic controller (PLC) (5) obtains all on-the-spot data of experiment through input/output module (2) and serial communication (4).
4. the centralized detecting of a kind of leakage test according to claim 1 and control system is characterized in that: each testing table controller of described work substation (C) is supported Modbus serial communication function, to realize the exchange with the host computer data.
5. the centralized detecting of a kind of leakage test according to claim 1 and control system; It is characterized in that: the centralized detecting of described a kind of leakage test and control system adopt data collecting card (9) for the monitoring of high-speed real-time amount; The high-speed real-time amount is given data collecting card (9) through input/output module (2) the back serial of programmable logic controller (PLC) (5) through data converter (3), is handled by the data acquisition program of industrial computer (6) again.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104731054A (en) * | 2015-01-25 | 2015-06-24 | 长沙理工大学 | Marine engineering pool wave maker remote measurement and control system |
| CN112326147A (en) * | 2020-10-29 | 2021-02-05 | 清华大学 | High-pressure gas seal detection test system with adjustable pressure release mode |
| CN112367278A (en) * | 2020-11-03 | 2021-02-12 | 清华大学 | Cloud gateway system based on programmable data switch and message processing method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004338120A (en) * | 2003-05-13 | 2004-12-02 | Kawakami Sangyo Co Ltd | Sealing device and sealling method using it |
| CN2683479Y (en) * | 2004-02-11 | 2005-03-09 | 广西工学院 | Multiple microcomputer monitoring and control system for train wind test |
| CN2896257Y (en) * | 2006-03-27 | 2007-05-02 | 南京化工职业技术学院 | Multi-parameter controllable high-rotation-speed mechanical seal penformance test device |
| CN100535627C (en) * | 2006-03-27 | 2009-09-02 | 南京化工职业技术学院 | Multi-parameter controllable high-rotating speed mechanical sealing performance tester |
| CN102052937A (en) * | 2009-11-05 | 2011-05-11 | 中国船舶重工集团公司第七一一研究所 | Test set for detecting properties of fluid control valve |
| CN201871544U (en) * | 2010-12-03 | 2011-06-22 | 攀钢集团钢铁钒钛股份有限公司 | Data acquiring-analyzing system for multi-function instrument in hot continuous rolling |
-
2012
- 2012-01-13 CN CN2012100103691A patent/CN102541018A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004338120A (en) * | 2003-05-13 | 2004-12-02 | Kawakami Sangyo Co Ltd | Sealing device and sealling method using it |
| CN2683479Y (en) * | 2004-02-11 | 2005-03-09 | 广西工学院 | Multiple microcomputer monitoring and control system for train wind test |
| CN2896257Y (en) * | 2006-03-27 | 2007-05-02 | 南京化工职业技术学院 | Multi-parameter controllable high-rotation-speed mechanical seal penformance test device |
| CN100535627C (en) * | 2006-03-27 | 2009-09-02 | 南京化工职业技术学院 | Multi-parameter controllable high-rotating speed mechanical sealing performance tester |
| CN102052937A (en) * | 2009-11-05 | 2011-05-11 | 中国船舶重工集团公司第七一一研究所 | Test set for detecting properties of fluid control valve |
| CN201871544U (en) * | 2010-12-03 | 2011-06-22 | 攀钢集团钢铁钒钛股份有限公司 | Data acquiring-analyzing system for multi-function instrument in hot continuous rolling |
Non-Patent Citations (1)
| Title |
|---|
| 孙见君，刘其和，魏龙: "机械密封试验数据采集系统", 《石油化工设备》, vol. 33, no. 4, 31 July 2004 (2004-07-31), pages 43 - 46 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104731054A (en) * | 2015-01-25 | 2015-06-24 | 长沙理工大学 | Marine engineering pool wave maker remote measurement and control system |
| CN112326147A (en) * | 2020-10-29 | 2021-02-05 | 清华大学 | High-pressure gas seal detection test system with adjustable pressure release mode |
| CN112367278A (en) * | 2020-11-03 | 2021-02-12 | 清华大学 | Cloud gateway system based on programmable data switch and message processing method thereof |
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