Summary of the invention
A kind of accurately assessment and authentication function adopting test, test and Real-time Simulation Technology to realize valve group performance is the invention provides for problem above, meet the high reliability request of product hydraulic system and then the proportional reversing valve group real-time simulation test device of Improving The Quality of Products.From engineering practicability angle, this device integrated level is high, simple to operate, accurately assessment and the checking of valve-like group performance in product will be had general applicability.
A kind of proportional reversing valve group real-time simulation test device is the invention provides in order to solve problem above, it is characterised in that: include emulation testing management platform, Real-time Simulation Test Platform and valve group test platform；
Emulation testing management platform is responsible for providing the monitoring of human-computer interaction interface, system administration, simulation process, is monitored pumping station operation state by display device in real time, and is controlled by pumping plant management software LABVIEW；
Emulation testing management platform includes master control interface unit, pumps station unit, System Management Unit, Simulation Control unit, breakdown judge unit；
Described master control interface unit is human-computer interaction interface, carries out unified management for monitoring pumping station operation state in real time with to the model, file and the data that emulate, test is relevant；
Described pumps station unit has been used for the start and stop of system oil pump, reset, off-load, warning；The real-time monitoring of system pressure, the adjustment " converter " of flow and pressure, flow oil temperature；
Described System Management Unit is for controlling and cycle tests deployment the management of valve group process of the test, simulation process；
Described Simulation Control unit is for being controlled whole simulation process, configure and dispose；
Described breakdown judge unit is used for according to emulation, test result, and in conjunction with fault experts database, pet valve group is carried out breakdown judge；
Real-time Simulation Test Platform is carried out unified management by Ethernet and serial communication by emulation testing management platform, is downloaded, performs real time contrast and the valve group breakdown judge of the automatic test of proportional reversing valve group, emulation and test result by the collection of main control software LABVIEW completed percentage reversal valve group real-time simulation signal and configuration information；
Real-time Simulation Test Platform is based on the real-time simulation test system of NIPXI, and Real-time Simulation Test Platform includes proportional reversing valve group phantom unit, proportional reversing valve group test cell；
Described proportional reversing valve group phantom unit includes AMESim Simulating software package, physical model unit and Controlling model unit, and the real-time simulation that AMESim Simulating software package is valve group provides simulated environment；Physical model unit is the mathematic simulated mode of valve group, for the real-time simulation of valve group；Controlling model is the input block of valve group mathematic simulated mode, and namely valve group controls electric current (valve control electric current), and the aperture for valve group controls；
Described proportional reversing valve group test cell, for the performance test of valve group, comprises pressure characteristic, discharge characteristic and pressure-flow characteristic；Proportional reversing valve group test cell includes a 3UNIPXI cabinet, being provided with main processor board, I/O collection plate in 3UNIPXI cabinet, main processor board is responsible for the signal processing of emulation, the scheduling of test assignment, the resolving of valve group Real-Time Model and real-time I/O collection plate；I/O collection plate completes the output of valve control current signal, pressure, the generation of signal sensed from flux and collection, it is achieved valve group real-time simulation signal tests the mutual contrast of signal with it；
Valve group test platform is tested mainly through test pumping plant comparative example reversal valve group, provides its test transducing signal for valve group Real-time Simulation Test Platform simultaneously；Valve group test platform includes test pumping plant unit, pump station integrated monitoring unit and test-bed unit；
Described test pumping plant unit is for providing hydraulic power for the test of proportional reversing valve group；
Described pump station integrated monitoring unit is for being monitored the ruuning situation of pumping plant；
Described test-bed unit is tested for comparative example reversal valve group, and the correlation test parameter of valve group is input in valve group simulation test platform by pressure, flow transducer；
Given valve control electric current is input in valve group test platform by data collecting system by valve group Real-time Simulation Test Platform, tests for proportional reversing valve group.
Apparatus of the present invention key technology mainly has following two aspects:
A) real-time simulation test comparison technology
Traditional hydraulic valve class component emulation testing work be when off-line or the two incomparably to carry out, the credibility of its result is not high.The real-time simulation function of this device application AMESim software, and in conjunction with PXI real-time emulation system, it may be achieved the online comparing function of emulation testing of proportional reversing valve group, substantially increase the degree of accuracy of its Performance Evaluation.
B) based on the emulation testing integrated software designing technique of NILABVIEW
Conventional real-time simulation apparatus, on hardware, great majority use the real-time simulation instruments such as DSPACE, RT-LAB, software then adopt MATLAB/Simulink carry out the data transmission of model as interface software, owing to data transmission period is long, easy distortion, and the software category that system uses is many, complex interfaces.This device adopts the LABVIEW being both NI company as emulation testing the poster processing soft, interface is possessed with the PXI real-time emulation system of NI company and real-time simulation software AMESim, can directly phantom be input in real-time emulation system, data communication is fast and accurate, therefore, this device only need to configure NILABVIEW software, carries out integrated software design on the whole, just can all functions such as the deployment of completion system inside structure and software interface customization.
Apparatus of the present invention integrate the test of proportional reversing valve group, test, emulation testing to when breakdown judge function, each functional module both can independently be implemented, again can overall operation, functional stronger, especially by the emulation testing comparing function that system management module realizes, the performance of valve group accurately can be assessed, and in conjunction with valve breakdown judge functional module, the fault of valve group can be accurately positioned, be effectively improved the reliability of hydraulic system.Therefore, the present invention is with a wide range of applications in the occasion needing comparative example reversal valve group performance to carry out accurately assessment and checking.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, 2, the invention provides a kind of proportional reversing valve group real-time simulation test device, including emulation testing management platform (host computer), Real-time Simulation Test Platform (slave computer) and valve group test platform；
Emulation testing management platform is responsible for providing the monitoring of human-computer interaction interface, system administration, simulation process, is monitored pumping station operation state by display device in real time, and is controlled by pumping plant management software LABVIEW；
Emulation testing management platform includes master control interface unit, pumps station unit, System Management Unit, Simulation Control unit, breakdown judge unit；
Described master control interface unit is human-computer interaction interface, carries out unified management for monitoring pumping station operation state in real time with to the model, file and the data that emulate, test is relevant.
Described pumps station unit has been used for the start and stop of system oil pump, reset, off-load, warning；The real-time monitoring etc. of system pressure, the adjustment (converter) of flow and pressure, flow oil temperature；
Described System Management Unit is for controlling and cycle tests deployment the management of valve group process of the test, simulation process；
Described Simulation Control unit is for being controlled whole simulation process, configure and dispose；
Described breakdown judge unit is used for according to emulation, test result, and in conjunction with fault experts database, pet valve group is carried out breakdown judge；
Real-time Simulation Test Platform is carried out unified management by Ethernet and serial communication by emulation testing management platform, downloads, performs real time contrast and the valve group breakdown judge of the automatic test of proportional reversing valve group, emulation and test result mainly through collection and the configuration information of main control software LABVIEW completed percentage reversal valve group real-time simulation signal.
Real-time Simulation Test Platform is based on the real-time simulation test system of NIPXI, and Real-time Simulation Test Platform includes proportional reversing valve group phantom unit, proportional reversing valve group test cell；
Described proportional reversing valve group phantom unit includes AMESim Simulating software package, physical model unit and Controlling model unit, and the real-time simulation that AMESim Simulating software package is valve group provides simulated environment；Physical model unit is the mathematic simulated mode of valve group, for the real-time simulation of valve group；Controlling model is the input block of valve group mathematic simulated mode, and namely valve group controls electric current (valve control electric current), and the aperture for valve group controls.
Described proportional reversing valve group test cell, for the performance test of valve group, comprises pressure characteristic, discharge characteristic and pressure-flow characteristic etc.；Proportional reversing valve group test cell includes a 3UNIPXI cabinet, being provided with main processor board, I/O collection plate in 3UNIPXI cabinet, main processor board is responsible for the signal processing of emulation, the scheduling of test assignment, the resolving of valve group Real-Time Model and real-time I/O collection plate；I/O collection plate completes generation and the collection of the transducing signals such as the output of valve control current signal, pressure, flow, it is achieved valve group real-time simulation signal tests the mutual contrast of signal with it；
Valve group test platform is tested mainly through test pumping plant comparative example reversal valve group, provides its test transducing signal for valve group Real-time Simulation Test Platform simultaneously；Valve group test platform includes test pumping plant unit, pump station integrated monitoring unit and test-bed unit.
Described test pumping plant unit is for providing hydraulic power for the test of proportional reversing valve group；
Described pump station integrated monitoring unit is for being monitored the ruuning situation of pumping plant；
Described test-bed unit is tested for comparative example reversal valve group, and the correlation test parameter of valve group is input in valve group simulation test platform by pressure, flow transducer.
Given valve control electric current is input in valve group test platform by data collecting system by valve group Real-time Simulation Test Platform, tests for proportional reversing valve group.
2. proportional reversing valve group real-time simulation test apparatus function realizes
This device hardware components mainly realizes the test of proportional reversing valve group, test signals collecting and the function such as control, support Real-Time Model operation.
Software section mainly realizes the simulation process monitoring of this equipment, System data management, can carry out the on-line monitoring of Real-Time Model parameter, adjust ginseng in real time, tests and the function such as the relative analysis process of Real-Time Model operation result, data storage, test report generation, breakdown judge.
The main LabVIEW adopting NI company on software, this software possesses the user interface that patterned man-machine interaction is good, can efficiently, conveniently realize collections, analysis and video data.Utilizing this software, user not only can quickly set up data collecting system, measurement system and control system, it is also possible to quickly creates the user interface for software system interactive controlling.
The core that the test of proportional reversing valve group, real-time simulation and control are this equipment, provide the real-time model that the valve group based on PXI real-time emulation system emulates and controls, its phantom of real time execution, simultaneously, run valve group test platform, it is tested by the data collecting system integrated by it, and the two result is analyzed by application LabVIEW software in host computer, and Controlling model completes the control of valve group input current.
Real-time Simulation Test Platform serviceability is reliable, the real-time emulation system of simple operation, can the phantom of real time execution proportional reversing valve group, the emulation testing application of frame cycle can reach a millisecond rank, guarantee accurately to transmit in real time between simulation parameter and operational factor in kind, the synchronicity of communication between real-time simulation and object test.
This device is generally mainly through arranging that host computer and slave computer realize above-mentioned soft or hard functional requirement, and slave computer partial deployment runs in PXI analogue system, and epigynous computer section is deployed in industrial computer and runs.Software runs program and completes built-in function and dispose by working out upper and lower machine, upper and lower machine logic module and with the relation of test-bed as shown in Figure 2.
Host computer adopts high performance industrial computer, the functions such as the foundation of main implementation model, simulation process management and data process, interface is the policer operation of test and emulation, and part that its inside performs includes display logic and processes, operation logic processes, report generation logical process etc.；Slave computer adopts NIPXI real-time emulation system, completes the functions such as the collection of object test signal, real-time simulated animation and serial communication.
It is connected by TCP between upper and lower machine.The control signal of the model data of slave computer, collection data, serial communication data and host computer is each through TCP transmission.
Intelligence aobvious control instrument signal is transmitted for 485 turn 232 by serial ports, is mainly accessed in digital displaying meter by the sensing amount signals such as pressure, flow and temperature and displays.
The signals such as P (pressure), Q (flow) sensor signal, valve control output signal, pressure and Flow-rate adjustment (converter) are digital quantity signal.
The signals such as pumping plant warning, reset, switch, off-load are analog signals, mainly the ruuning situation of pumping plant are controlled.
Valve control input signal be digital quantity signal, be converted into CAN signal by serial ports 232, be transferred in valve control module control valve group aperture.