CN103064298A - Semi-physical simulation experiment system - Google Patents
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- CN103064298A CN103064298A CN2012105489000A CN201210548900A CN103064298A CN 103064298 A CN103064298 A CN 103064298A CN 2012105489000 A CN2012105489000 A CN 2012105489000A CN 201210548900 A CN201210548900 A CN 201210548900A CN 103064298 A CN103064298 A CN 103064298A
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Abstract
The invention discloses a semi-physical simulation experiment system. The semi-physical simulation experiment system comprises a management layer, a control layer and a device layer. The management layer is composed of a plurality of emulation computers and is used for setting, displaying and managing an environment and parameters of a simulation experiment. The control layer is composed of a plurality of programmable logic controllers (PLC) and is used for achieving data collection, control loop regulation, sequential control, logic control and comprehensive alarm. The device layer is composed of a plurality of object devices, an imitation screen and input/output signals, and the object devices comprise sensors and actuators. A figurative expression of the system control flow chart of the imitation screen and the input/output signals are simulation input and output of a detection signal and an actuating signal of the system. The control system is downward directly connected with the sensors and the actuators of the devices layer. The input/output signals are upward connected with the emulation computers of the management layer through the network. The collected data and state signals of the object devices are transmitted to the emulation computers.
Description
Technical field
The invention belongs to the instructional technology field, particularly a kind of hardware-in-the-loop simulation experimental system.
Background technology
In school instruction and the vocational training, experiment is an important link.Particularly industry science class colleges and universities and vocational school etc. need to cultivate student's practical operative ability, and the hardware-in-the-loop simulation experiment by a kind of control system can help the student to understand and be familiar with a kind of control system, to learning art with acquire skill extremely important.
The form of hardware-in-the-loop simulation experiment porch and framework are to student study and grasp a kind of control system and technology is very important.Existing hardware-in-the-loop simulation experiment porch has two kinds of forms, and the first is that experimental operation table (and simulation computer), material object are arranged in one, and the second is that experimental implementation (and simulation computer) and material object is fully independent.
The first half full-scale investigation platform, arranged the imitation screen of a kind of control system (emulation experiment) on the platform, hung the material object in this control system on the imitation screen, these material objects are sometimes because volume is larger, blocked the control flow picture, so that picture is imperfect, unintelligible, not attractive in appearance; Sometimes because volume in kind is too large or weight is too heavy, must not only install wherein a part ofly, can not intactly install, be local material object so that the experimenter sees; Sometimes because of the position on control flow chart in kind, material object installs and fixes has affected the attractive in appearance of experiment table, has also affected the convenience of operation.
The second way, experiment table and material object is fully independent, and material object is fixed on the platform, although made things convenient for displaying in kind and operation, because separate with experiment table, floor area is large, is difficult for arranging; Inconvenient operation in the experimentation is not easy to experiment and observes, and also wants two to run; Material object separates with operator's console, also is not easy to theory in kind combining closely, and also is not easy to express position in control system in kind etc.
In addition, existing hardware-in-the-loop simulation experiment porch, employing be independent experiment device and system, in case the fault of experimental facilities will be finished experimental duties.The experiment porch that this experiment table and simulation computer structure are fixing, simulation computer is critical component, all emulated datas provide by simulation computer, in case the whole experiment of fault just can't be carried out.
Summary of the invention
The purpose of this invention is to provide a kind of hardware-in-the-loop simulation experimental system, not good to solve existing hardware-in-the-loop simulation experimental system simulated effect, make up inflexible problem.
Technical scheme of the present invention is, a kind of hardware-in-the-loop simulation experimental system, and this system comprises administration and supervision authorities, key-course and mechanical floor,
Described administration and supervision authorities are comprised of a plurality of simulation computers, are used for environment and the parameter of emulation experiment are arranged, show and manage,
Described key-course is comprised of a plurality of PLC, is used for realizing data acquisition, control loop adjusting, sequential control, logic control and integrated alarm,
Described mechanical floor is comprised of a plurality of object-based devices, imitation screen and Shu Ru ∕ output signal, the kind of object-based device comprises sensor and actuator, the imagery of the control flow chart of the described system of imitation screen is expressed, input/output signal, the emulation input and output of detection signal and actuating signal in the described system
Described control system directly connects sensor and the actuator of described mechanical floor downwards, and input/output signal, upwards link to each other with the simulation computer of described administration and supervision authorities by network, the data that gather and the status signal of object-based device are sent to simulation computer, and the control strategy of being correlated with according to the emulation experiment data output of simulation computer simultaneously calculates and the execution of control action.
Described key-course and described mechanical floor are integrated in the one and half full-scale investigation operating means, this device is the clothes closet structure, have an edge and be the base of circular arc, the base top is the material object display district, the material object display district is provided with mounting bracket and is used for installing the experiment material object, the top in material object display district is the experimental implementation panel, and this experimental implementation panel is provided with operating switch and process data display
Be labeled with principle of work simulation drawing in kind at described experimental implementation panel, in order to cohesive process data display equipment dynamic demonstration corresponding in kind duty,
Be labeled with Pointing sign board in kind at described experimental implementation panel, indicate the material object that is installed on the material object display district in order to correspondence,
Have one in described device inside backboard be installed, in order to the installing simulation experimental provision required components and parts and wiring,
Also have power supply, control cables and system earth in described device inside,
Described device is the back opening structure.
Described experimental implementation panel is the simple gate structure, and described material object display district is semi-open structure, and the back of described device is double swing doors.
The simple gate structure of described experimental implementation panel, the form of employing button fly front is connected button fly front with hinge with the cabinet of described device, and button fly front can be shirked and open.
One and half full-scale investigation operating means need to combine a control system principle (imitation screen), material object and operation thereof well.Make the student can clearly see first the composition of this control system, position, the effect in system of instrument and equipment, the principle of control system etc. from the imitation screen; Then from the theory to the material object, the main instrument in the control system and the material object of equipment can be clear that, touch, and can also hands-on; By experiment operation has just had further understanding to control principle, control method and the instrument of this control system and the characteristic of equipment at last.
Hardware-in-the-loop simulation experimental provision of the present invention is perfectly combined the principle of a control system, main instrument and equipment material object, can be clear that control procedure and adjustment process again, also can easily carry out hands-on.Solve existing system and can not explain well instrument and position and the effect of equipment (material object) in a control system; Can not take into account can see intuitively action in kind can make not only integrality of not blocking the panel pattern in kind and but also can go easily operation in kind; Can not take into account the integrality that can keep in kind can make again operation and experimental state, data etc. be presented at the first-class a series of difficult problems of platform.
The present invention has also realized the hardware-in-the-loop simulation experimental platform system of network structure, the experimental implementation device that simulation computer can corresponding one and half material objects, also can corresponding a plurality of half experimental implementation devices in kind; Also can many experimental implementation device of corresponding one and half material objects of computing machine.Flexible configuration, having solved former whole system can not split, in case there is partial fault can have influence on whole out of use problem; Can not expand, can only one or two people carry out the limitation of experimental implementation.
With this hardware-in-the-loop simulation experimental implementation device that merges fully with control system in kind, system simulation screen and material object are divided into 2 districts, compact attractive in appearance, floor area is little, good experimental situation and operating platform can be provided, allow the student operate by experiment, both the control system of integral body be had gained some understanding, can be familiar with again main instrument and the equipment of this system, can hands-on participate again; From theory into action, visible, tangible, understand from recognizing a certain technology of basic grasp from the concept to the entity, satisfy the requirement of student experimenting and vocational training.
Description of drawings
Fig. 1 is a kind of networking synoptic diagram of hardware-in-the-loop simulation experimental system in the embodiment of the invention.
Fig. 2 is the another kind of networking synoptic diagram of hardware-in-the-loop simulation experimental system in the embodiment of the invention.
Fig. 3 is half full-scale investigation operating means synoptic diagram in the embodiment of the invention.
Wherein, 1-half full-scale investigation operating means, 2-experimental implementation panel, the 3-operating switch, 4-process data display, 5-material object display district, the 6-mounting bracket, 7-opens the door at the back, and 8-installs backboard, lower space in the 9-, 10-base, 11-cabinet top.
Embodiment
As shown in Figure 3, a kind of control system half full-scale investigation operating means 1 that the present invention relates to, this device cabinet is by the sheet metal part welding fabrication; The front first half is experimental implementation panel 2, adopts the button fly front form, as the imitation screen of control system, and experimental implementation switch 3, button, Pointing sign board in kind, process data display 4 etc.; Positive Lower Half is material object display district 5, arranges that main actuating equipment and the test instrumentation installed in a kind of control system are in kind; The back side is double swing doors 7, and the electric elements such as the controller of simulating experimental system, isolating switch and wiring thereof are arranged in of internal upper part and install on the backboard 8; Interior lower space 9 is cable routing, the system earths such as internal electric source, control; Base 10 is the platform of arc edge, and platform can be used for layout in kind or fixing, and the soft and graceful sight of arc edge can also prevent from tripping.
In conjunction with Fig. 1 and Fig. 2, the present invention can be used as a kind of teaching hardware-in-the-loop simulation experiment porch and system, minimum unit comprises the experimental implementation device of one and half material objects, an emulation computing machine, also can be a plurality of half experimental operation table and the combination of a plurality of simulation computer in kind, the hardware-in-the-loop simulation experimental platform system of the networking that is formed by half full-scale investigation device and simulation computer.
The experimental implementation device of one and half material objects is with material object well in the physics emerging system, front upper is the simulation drawing display screen of a control system, positive basifacial is material object display and operational zone, up and down perfectly combination, novel structure provides observability is good, operability is good complete good experimental situation and operating platform.So the experimental implementation device of one and half material objects is explained instrument and equipment (material object) position and the effect in a control system well; Taken into account can see intuitively action in kind can make not only not block surface plate imitation screen pattern in kind integrality and but also can go easily operation in kind; Having taken into account the integrality that can keep in kind can make again operation and experimental state, data be presented on the platform.
Simulation computer moves the simulation software of one or more control system, and setting, the dynamic data that the observation of students experimentation is provided, the curve that the teacher carries out experimental situation and the man-machine interactive platform that carries out experimental implementation are provided.
This hardware-in-the-loop simulation experimental platform system adopts open network structure, can carry out the hardware-in-the-loop simulation experiment of a system, also can carry out simultaneously the hardware-in-the-loop simulation experiment of a plurality of systems, satisfies the education experiment requirement of multiple combination.
System forms
A kind of hardware-in-the-loop simulation experiment porch and system, structure can be divided into upper, middle and lower-ranking: administration and supervision authorities, key-course and mechanical floor.
The upper strata is administration and supervision authorities, is comprised of one or more simulation computers, realizes the operational administrative function of man-machine interaction.Simulation computer comprises main frame, display, is used for environment and the parameter of experiment are arranged, and shows and manage data, curve and the equipment state of experiment; The emulated data of experiment sends key-course to, the control strategy calculating that the confession key-course is correlated with and the execution of control action.
The middle level is key-course, adopts PLC control, is integrated in the simulation operations device of one and half material objects, realizes the functions such as data acquisition, control loop adjusting, sequential control, logic control and integrated alarm of hardware-in-the-loop simulation experimental system.The input signal of the PLC control system needs simulation in kind and some control system of the sensor, actuator etc. of join dependency downwards directly and need to show output signal; Upwards by Ethernet switch, link to each other with simulation computer, give simulation computer with the analog quantity of collection and the status signal of switching value signal and equipment, export accordingly control according to the output signal of simulation computer simultaneously.
Lower floor is mechanical floor, is comprised of equipment material object and imitation screen, input/output signal etc.The material object of equipment is configured according to each different control system and relevant requirement of experiment, if any thermopair, the thermal resistance sensor of measuring temperature, instrument and the transmitter of gaging pressure is arranged, and the valve of regulating usefulness and switch etc. are arranged.Imitation screen is according to the process chart of a control system, and the icon of equipment, instrument image, pilot lamp, switch and read out instrument etc. reach demonstration and the function screen of the simulation real system state of mutual relationship statement in the drawing system.Input/output signal is the emulation input and output of the signal of some detection signals in the system and some actions.
A kind of hardware-in-the-loop simulation experiment porch of the present invention and system can be independently hardware-in-the-loop simulation experiment porchs of a control system, also can be half full-scale investigation platforms of a plurality of control system.When being half object operation platform of a control system, can be the combination of one and half full-scale investigation operating means and one or more simulation computer, also can 2 or a plurality of half full-scale investigation operating means and the combination of one or more simulation computer.Combination is flexible, adapts to the kinds of experiments requirement.
Given below is the structured flowchart of a kind of hardware-in-the-loop simulation experiment porch and system, and this system comprises 3 hardware-in-the-loop simulation experiment porchs.A main frame fuel oil viscosity control hardware-in-the-loop simulation experiment porch, a main frame cooling water temperature control hardware-in-the-loop simulation experiment porch, an engine room monitoring warning hardware-in-the-loop simulation experiment porch.
Main frame fuel oil viscosity control Simulation Experimental Platform comprises one and half full-scale investigation operating means and a simulation computer.Half full-scale investigation operating means is the main equipment of experimental implementation, and simulation computer is emulation and the management equipment in the experiment, and they connect by Ethernet.Simulation computer can simulation management one and half full-scale investigation operating means, also can a plurality of half full-scale investigation operating means of simulation management; Same one and half full-scale investigation operating means can connect a simulation computer, also can connect 2 or a plurality of computing machine, if when connecting 2 simulation computers, only have 1 simulation computer to carry out simulation calculation, i.e. the simulation calculation software of running experiment process; More than 2 or many can be used as simultaneously experimentation and monitor usefulness, the data in the experiment, curve and various man-machine interfaces are the same with the computing machine of operation simulation software, can be used as Hot Spare, also can test for more student.
Half full-scale investigation operating means front upper is main frame cooling water control system imitation screen, the displaying on the imitation screen be whole main frame cooling water control system technological process simulation drawing, the equipment in the system, instrument, pipeline etc. one by one clearly the statement in the drawings.The student can be from composition, each equipment, position and the effect of instrument system of scheming the whole control system of upper understanding.Embedding on the simulation drawing has digital indicator gauge, has shown the temperature value of needs monitorings, and in the process of experiment, temperature changes along with the adjusting action of control system, makes the very clear effect that can see control of student.The simulation drawing bottom is " electric control valve ", " temperature sensor ", " pressure unit ", " switch valve ", indicated that not only the title of each instrument, equipment and they are installed in physical location in the system, but also the label of the material object of installing as the imitation screen bottom makes clear this corresponding title in kind of student.The structure that the indentation of imitation screen bottom is open makes things convenient for the installation of instrument and equipment and has saved the space, not only allows the student can see material object and action thereof clearly and can also carry out hands-on practice.
The visual interface that carries out simulated environment setting, operation emulation (algorithm and data process) program and experimentation curve and data are provided with simulation computer.A simulation computer can move the emulator control program of one and half full-scale investigation operating means, also can move the emulator control program of several half full-scale investigation operating means, because each half full-scale investigation operating means has different IP addresses, therefore a simulation computer has the ability of a plurality of half full-scale investigation operating means being carried out Simulation Control.In case a simulation computer fault is arranged, can with other simulation calculation machine operation, improve the reliability of system.
One and half full-scale investigation operating means also can be connected with many simulation computers, wherein one can be carried out the simulated environment setting and be connected the emulated data interface, curve and data that can the observation experiment process from other the simulation computer, improved like this efficient of equipment, the validity of system.
Many simulation computer control one and half full-scale investigation operating means, by every simulation computer network address (IP) different with each half full-scale investigation operating means, and realized by software control.
Half full-scale investigation operating means is novel, and the display platform of experimental implementation and the operating platform of material object are perfectly combined, and becomes as a whole.Make things convenient for the student to understand control principle, carry out experimental implementation and observation experiment process.Half full-scale investigation operating means compact conformation makes things convenient for the laboratory to arrange.Several half experimental implementation devices in kind can be arranged side by side, and neat appearance and convenient more student carry out experimental implementation.Half full-scale investigation operating means, different structure and purposes before and after up and down, rational in infrastructure, layout is both artistic and practical.
The system of the network structure that hardware-in-the-loop simulation experiment porch employing simulation computer and experimental implementation device are separate is so that combination is very easy to.One and half full-scale investigation operating means can both be connected with all simulation computer, and a simulation computer can carry out Simulation Control to a plurality of experimental implementation devices, and an experimental implementation device also can connect a plurality of simulation computers.Reliability is high, and availability is good.
Characteristics of the present invention are,
1) the hardware-in-the-loop simulation operating means is novel, and compact conformation is rationally distributed, and handled easily is practical and attractive.A control system principle (imitation screen), material object and operation thereof are combined well.Make the student can clearly see first the composition of this control system, position, the effect in system of instrument and equipment, the principle of control system etc. from the imitation screen; Then from the theory to the material object, the main instrument in the control system and the material object of equipment can be clear that, touch, and can also hands-on; By experiment operation has just had further understanding to control principle, control method and the instrument of this control system and the characteristic of equipment at last.So such hardware-in-the-loop simulation experimental provision, the principle of a control system, main instrument and equipment material object perfectly can be combined, can be clear that control procedure and adjustment process again, also can easily carry out hands-on, it has solved general hardware-in-the-loop simulation experimental system and can not well principle and material object have been combined; Can not explain well instrument and position and the effect of equipment (material object) in a control system; Can not take into account can see intuitively action in kind can make not only integrality of not blocking the panel pattern in kind and but also can go easily operation in kind; Can not take into account the integrality that can keep in kind can make again operation and experimental state, data etc. be presented at the first-class a series of difficult problems of platform.
2) system of network structure, simulation computer and half full-scale investigation operating means are separate, can carry out as required flexible configuration and combination.The importance of simulation computer in a hardware-in-the-loop simulation experiment porch, one and half full-scale investigation operating means can have a plurality of simulation computers to guarantee reliability, and operability is in case there is fault can not affect whole the use; Simultaneously, when one and half full-scale investigation operating means, when connecting a plurality of simulation computer, can allow more experimenter's observation experiment process and participate in experimental implementation.
Applicable cases of the present invention comprises, main frame cooling water temperature control Simulation Experimental Platform, fuel oil viscosity control Simulation Experimental Platform and engine room monitoring warning device Simulation Experimental Platform, adopt this framework, provide good experiment porch for imparting knowledge to students and training, satisfy user's requirement, obtained user's favorable comment.
The hardware-in-the-loop simulation experiment porch of this novelty has changed the past experimental operation table or has watched inconvenience, or inconvenient operation, the problem that can not take into account, and partial failure affects integral body can not be used, the problems such as simulation computer function singleness.Since its novel structure, flexibly configuration, and good effect has wide market outlook.
Claims (4)
1. a hardware-in-the-loop simulation experimental system is characterized in that, this system comprises administration and supervision authorities, key-course and mechanical floor,
Described administration and supervision authorities are comprised of a plurality of simulation computers, are used for environment and the parameter of emulation experiment are arranged, show and manage,
Described key-course is comprised of a plurality of PLC, is used for realizing data acquisition, control loop adjusting, sequential control, logic control and integrated alarm,
Described mechanical floor is comprised of a plurality of object-based devices, imitation screen and Shu Ru ∕ output signal, the kind of object-based device comprises sensor and actuator, the imagery of the control flow chart of the described system of imitation screen is expressed, input/output signal, the emulation input and output of detection signal and actuating signal in the described system
Described control system directly connects sensor and the actuator of described mechanical floor downwards, and input/output signal, upwards link to each other with the simulation computer of described administration and supervision authorities by network, the data that gather and the status signal of object-based device are sent to simulation computer, and the control strategy of being correlated with according to the emulation experiment data output of simulation computer simultaneously calculates and the execution of control action.
2. hardware-in-the-loop simulation experimental system as claimed in claim 1, it is characterized in that, described key-course and described mechanical floor are integrated in the one and half full-scale investigation operating means, this device is the clothes closet structure, has the base that an edge is circular arc, and the base top is the material object display district, the material object display district is provided with mounting bracket and is used for installing the experiment material object, the top in material object display district is the experimental implementation panel, and this experimental implementation panel is provided with operating switch and process data display
Be labeled with principle of work simulation drawing in kind at described experimental implementation panel, in order to cohesive process data display equipment dynamic demonstration corresponding in kind duty,
Be labeled with Pointing sign board in kind at described experimental implementation panel, indicate the material object that is installed on the material object display district in order to correspondence,
Have one in described device inside backboard be installed, in order to the installing simulation experimental provision required components and parts and wiring,
Also have power supply, control cables and system earth in described device inside,
Described device is the back opening structure.
3. hardware-in-the-loop simulation experimental system as claimed in claim 2 is characterized in that, described experimental implementation panel is the simple gate structure, and described material object display district is semi-open structure, and the back of described device is double swing doors.
4. hardware-in-the-loop simulation experimental system as claimed in claim 3 is characterized in that, the simple gate structure of described experimental implementation panel, and the form of employing button fly front is connected button fly front with hinge with the cabinet of described device, and button fly front can be shirked and open.
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| CN103064298B (en) | 2016-04-27 |
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