CN104183185A - Simulation control system and method for hydraulic prop used for computer teaching - Google Patents
Simulation control system and method for hydraulic prop used for computer teaching Download PDFInfo
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- CN104183185A CN104183185A CN201410397144.5A CN201410397144A CN104183185A CN 104183185 A CN104183185 A CN 104183185A CN 201410397144 A CN201410397144 A CN 201410397144A CN 104183185 A CN104183185 A CN 104183185A
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Abstract
The invention discloses a remote simulation control system for a hydraulic prop used for computer teaching. The simulation control system comprises a pressure sensor, a displacement sensor and an alignment sensor, wherein the pressure sensor, the displacement sensor and the alignment sensor are arranged on the hydraulic prop. A remote simulation control system layer comprises a plurality of interface managers, each interface manager is composed of an electromagnetic valve group, a data acquisition unit and an operation panel, and each interface manager corresponds to a hydraulic support in a physical layer. A system control layer comprises two master controllers, a plurality of I/O controllers and a connection bus used for transmitting a hydraulic support super-long command control word, wherein the two master controllers are connected with the multiple I/O controllers through the connection bus. According to the remote simulation control system, a remote control system is simulated in the teaching process, problems are found in time and solved, practical experience of students is enhanced, and reliability of the system in the actual application process is guaranteed.
Description
Technical field
The present invention relates to a kind of long-range analog control system, specifically long-range analog control system and the control method of hydraulic prop for a kind of computer teaching, belong to computer teaching technology field.
Background technology
Computer-aided instruction (Computer Aided Instruction, be called for short CAI), be the various education activities of carrying out under area of computer aided, with conversational mode and student, the content of courses, Teaching process, the method for carrying out teaching and training and technology be discussed.Along with the development in epoch, computer-aided instruction combines with real application gradually, to reach the object of studying in order to practise.
At present, in the field of hydraulic prop, along with getting more and more of smart machine, popularizing of integrated application, because the data volume of communication also increases gradually, and communication distance is far away, Long-distance Control for equipment all cannot keep good real-time all the time, and, traditional control system, adopt the communication mode of CAN bus in the majority, so just must make the reference mark on each equipment need a corresponding controller, form a complicated distributed communication system, strengthen the complicacy of system development, in conjunction with can not well carrying out simulated experiment early stage, thereby reduce the reliability of system.
Summary of the invention
For the disease problem existing in above-mentioned prior art, the invention provides long-range analog control system and the control method of a kind of computer teaching hydraulic prop, in the process of teaching, tele-control system is simulated, pinpoint the problems in time and solve, in strengthening students practise experience, the reliability of system while ensureing practical application.
To achieve these goals, the invention provides the long-range analog control system of a kind of computer teaching hydraulic prop, wherein, fully mechanized coal face and hydraulic prop are simulates in laboratory, and the device that function is identical, wherein, diverse location on hydraulic prop is respectively arranged with pressure transducer, displacement transducer and alignment sensor, described long-range analog control system layer comprises several interface managers, and interface manager is made up of solenoid valve group, data acquisition unit and guidance panel, and a hydraulic support in the corresponding Physical layer of each interface manager; Described system key-course comprises two master controllers, several I/O controllers and for transmitting the connection bus of hydraulic support very long instruction word (VLIW) control word, between two described master controllers and several I/O controllers, connects by connecting bus.
Further, described connection bus is used EtherCAT bus; Between two described master controllers and several I/O controllers, connect by EtherCAT bus.
Further, described coalcutter is provided with the infrared transmitter for coalcutter is positioned with it, is provided with the infrared remote receiver corresponding with infrared transmitter on described hydraulic support.
Further, the solenoid valve group in described dielectric layer is used for converting electrical signals to hydraulic power signal, drives the hydraulic cylinder of hydraulic support in Physical layer; Described data acquisition unit is for gathering the sensor values of the each hydraulic support of Physical layer; Described control panel is for man-machine interaction, Gather and input person's input instruction.
Further, the master controller in described system key-course is the main frame arbitrarily with Ethernet interface, and is provided with network transformer between the main control chip of master controller and Ethernet interface.
Further, the number of I/O controller in described system key-course is identical with the number of hydraulic support, and corresponding setting one by one, mutual for dielectric layer; Described I/O controller carries out folding control according to the steering order of bus to solenoid valve group, and then controls hydraulic support action.
On the basis of said structure, the control method of long-range analog control system is as follows:
(1), in the time that certain support is carried out to simulated operation, I/O controller gathers operator's input instruction, wherein, input instruction realize by analysis with correct judgement, and store, be convenient to the analysis in later stage and improve again, then enter next step;
(2) I/O controller, by the steering order collecting, is filled into the very long instruction word in bus, through cycle period, described very long instruction word is sent to master controller;
(3) master controller carries out protocol analysis after receiving the very long instruction word (VLIW) in bus, then sends corresponding control command according to protocol contents, and this control command is filled in the very long instruction word of bus;
(4) in a cycle period, the very long instruction word that described I/O controller reads out, obtain the address mapping relation in self address and very long instruction word, in the time that mapping relations are mated, get the instruction of corresponding address, in above-mentioned cycle period, can be to dot cycle, also can cross-circulation;
(5) I/O controller takes out after instruction, and instruction is carried out to protocol analysis, then in real time I/O mouth is operated.
In sum, the present invention carries out the control system of practical application simulation application in the teaching of computing machine, and by traditional distributed hydraulic support electrohydraulic control system, become a point face formula I/O, centralized control hydraulic support electrohydraulic control system, reduce the complicacy of control system, made the electrohydraulic control system exploitation of hydraulic support easier; Improved the reliability of control system, whole system only has master controller to control, and I/O controller only carries out real-time action, and the design of Content of Communication is more simple and reliable, has greatly reduced the probability of garble; Simultaneously in the process of simulation test, and make student obtain experience, simultaneously in test constantly innovation and improving, guarantee reliability in actual applications, just really accomplish to teach through lively activities, there is operation widely and be worth, be worth promoting in the teaching of computing machine.
Brief description of the drawings
Fig. 1 is the I/O controller architecture block diagram of hydraulic support tele-control system.
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described.
Shown in Fig. 1, the invention provides the long-range analog control system of a kind of computer teaching hydraulic prop, comprise the pressure transducer, displacement transducer and the alignment sensor that are arranged on hydraulic prop, described long-range analog control system layer comprises several interface managers, and interface manager is made up of solenoid valve group, data acquisition unit and guidance panel, and a hydraulic support in the corresponding Physical layer of each interface manager; Described system key-course comprises two master controllers, several I/O controllers and for transmitting the connection bus of hydraulic support very long instruction word (VLIW) control word, between two described master controllers and several I/O controllers, connects by connecting bus.
Further, described connection bus is used EtherCAT bus; Between two described master controllers and several I/O controllers, connect by EtherCAT bus.
Further, described coalcutter is provided with the infrared transmitter for coalcutter is positioned with it, is provided with the infrared remote receiver corresponding with infrared transmitter on described hydraulic support.
Further, the solenoid valve group in described dielectric layer is used for converting electrical signals to hydraulic power signal, drives the hydraulic cylinder of hydraulic support in Physical layer; Described data acquisition unit is for gathering the sensor values of the each hydraulic support of Physical layer; Described control panel is for man-machine interaction, Gather and input person's input instruction.
Further, the master controller in described system key-course is the main frame arbitrarily with Ethernet interface, and is provided with network transformer between the main control chip of master controller and Ethernet interface.
Further, the number of I/O controller in described system key-course is identical with the number of hydraulic support, and corresponding setting one by one, mutual for dielectric layer; Described I/O controller carries out folding control according to the steering order of bus to solenoid valve group, and then controls hydraulic support action.
The connected mode that above-mentioned control system is concrete is: be respectively provided with a master controller at the two ends of fully-mechanized mining working, be respectively master controller 1 and master controller 2, an I/O controller is installed on each hydraulic support, between each I/O controller, adopt charged cable to connect, in cable, wherein two cores are power lead ground wire together, other are the signal wire of ethernet line, between master controller and I/O controller, adopt described charged cable to be connected, between two master controllers, also adopt described charged cable to connect, form looped network.
The control method of tele-control system, comprises the following steps:
(1), in the time that certain support is carried out to simulated operation, I/O controller gathers operator's input instruction, wherein, input instruction realize by analysis with correct judgement, and store, be convenient to the analysis in later stage and improve again, then enter next step;
(2) I/O controller, by the steering order collecting, is filled into the very long instruction word in bus, through cycle period, described very long instruction word is sent to master controller;
(3) master controller carries out protocol analysis after receiving the very long instruction word (VLIW) in bus, then sends corresponding control command according to protocol contents, and this control command is filled in the very long instruction word of bus;
(4) in a cycle period, the very long instruction word that described I/O controller reads out, obtain the address mapping relation in self address and very long instruction word, in the time that mapping relations are mated, get the instruction of corresponding address, in above-mentioned cycle period, can be to dot cycle, also can cross-circulation;
(5) I/O controller takes out after instruction, and instruction is carried out to protocol analysis, then in real time I/O mouth is operated.
In conjunction with actual structure and method, the present invention carries out the control system of practical application simulation application in the teaching of computing machine, and by traditional distributed hydraulic support electrohydraulic control system, become a point face formula I/O, centralized control hydraulic support electrohydraulic control system, reduce the complicacy of control system, made the electrohydraulic control system exploitation of hydraulic support easier; Improved the reliability of control system, whole system only has master controller to control, and I/O controller only carries out real-time action, and the design of Content of Communication is more simple and reliable, has greatly reduced the probability of garble; Simultaneously in the process of simulation test, and make student obtain experience, simultaneously in test constantly innovation and improving, guarantee reliability in actual applications, just really accomplish to teach through lively activities, there is operation widely and be worth, be worth promoting in the teaching of computing machine.
Claims (7)
1. the long-range analog control system of a computer teaching use hydraulic prop, wherein, fully mechanized coal face and hydraulic prop are simulates in laboratory, and the device that function is identical, it is characterized in that, diverse location on hydraulic prop is respectively arranged with pressure transducer, displacement transducer and alignment sensor, described long-range analog control system layer comprises several interface managers, and interface manager is made up of solenoid valve group, data acquisition unit and guidance panel, and a hydraulic support in the corresponding Physical layer of each interface manager; Described system key-course comprises two master controllers, several I/O controllers and for transmitting the connection bus of hydraulic support very long instruction word (VLIW) control word, between two described master controllers and several I/O controllers, connects by connecting bus.
2. the long-range analog control system of hydraulic prop for a kind of computer teaching according to claim 1, is characterized in that, described connection bus is used EtherCAT bus; Between two described master controllers and several I/O controllers, connect by EtherCAT bus.
3. the long-range analog control system of hydraulic prop for a kind of computer teaching according to claim 1, it is characterized in that, described coalcutter is provided with the infrared transmitter for coalcutter is positioned with it, is provided with the infrared remote receiver corresponding with infrared transmitter on described hydraulic support.
4. the long-range analog control system of hydraulic prop for a kind of computer teaching according to claim 1, is characterized in that, the solenoid valve group in described dielectric layer is used for converting electrical signals to hydraulic power signal, drives the hydraulic cylinder of hydraulic support in Physical layer; Described data acquisition unit is for gathering the sensor values of the each hydraulic support of Physical layer; Described control panel is for man-machine interaction, Gather and input person's input instruction.
5. the long-range analog control system of hydraulic prop for a kind of computer teaching according to claim 1, it is characterized in that, master controller in described system key-course is the main frame arbitrarily with Ethernet interface, and is provided with network transformer between the main control chip of master controller and Ethernet interface.
6. the long-range analog control system of hydraulic prop for a kind of computer teaching according to claim 1, it is characterized in that, the number of I/O controller in described system key-course is identical with the number of hydraulic support, and corresponding setting one by one, mutual for dielectric layer; Described I/O controller carries out folding control according to the steering order of bus to solenoid valve group, and then controls hydraulic support action.
7. the long-range analog control system of hydraulic prop for a kind of computer teaching according to claim 1, is characterized in that,
(1), in the time that certain support is carried out to simulated operation, I/O controller gathers operator's input instruction, wherein, input instruction realize by analysis with correct judgement, and store, be convenient to the analysis in later stage and improve again, then enter next step;
(2) I/O controller, by the steering order collecting, is filled into the very long instruction word in bus, through cycle period, described very long instruction word is sent to master controller;
(3) master controller carries out protocol analysis after receiving the very long instruction word (VLIW) in bus, then sends corresponding control command according to protocol contents, and this control command is filled in the very long instruction word of bus;
(4) in a cycle period, the very long instruction word that described I/O controller reads out, obtain the address mapping relation in self address and very long instruction word, in the time that mapping relations are mated, get the instruction of corresponding address, in above-mentioned cycle period, can be to dot cycle, also can cross-circulation;
(5) I/O controller takes out after instruction, and instruction is carried out to protocol analysis, then in real time I/O mouth is operated.
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| CN201410397144.5A CN104183185A (en) | 2014-08-13 | 2014-08-13 | Simulation control system and method for hydraulic prop used for computer teaching |
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Cited By (3)
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| CN105404171A (en) * | 2015-09-24 | 2016-03-16 | 北京天地玛珂电液控制系统有限公司 | Simulation test system of hydraulic support electro-hydraulic control system |
| CN106089278A (en) * | 2016-06-28 | 2016-11-09 | 太原理工大学 | Colliery unmanned fully-mechanized mining working surface hydraulic support electrohydraulic control system testing stand |
| CN111077816A (en) * | 2019-12-04 | 2020-04-28 | 神华神东煤炭集团有限责任公司 | Telex control method and telex control system based on data chain and super-large mining height coal mining machine |
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| CN111077816A (en) * | 2019-12-04 | 2020-04-28 | 神华神东煤炭集团有限责任公司 | Telex control method and telex control system based on data chain and super-large mining height coal mining machine |
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