CN201191455Y - Multimedia network training educating system for electric spraying engine - Google Patents

Multimedia network training educating system for electric spraying engine Download PDF

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Publication number
CN201191455Y
CN201191455Y CNU2008200744736U CN200820074473U CN201191455Y CN 201191455 Y CN201191455 Y CN 201191455Y CN U2008200744736 U CNU2008200744736 U CN U2008200744736U CN 200820074473 U CN200820074473 U CN 200820074473U CN 201191455 Y CN201191455 Y CN 201191455Y
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China
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module
signal
training
terminal
fuel injection
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Expired - Fee Related
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CNU2008200744736U
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Chinese (zh)
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徐正飞
李建文
刘宏威
刘金华
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Military Transportation University of PLA
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Military Transportation University of PLA
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Abstract

The utility model discloses a multimedia network training teaching system of an electronic fuel injection engine, which comprises an engine test-bed, an interactive workstation, a training terminal and a projection apparatus, and the interactive workstation is communicated with the training terminal through a wireless receive/send integral chip. The interactive workstation is in contact type, and comprises an industrial control computer and a main control plate, the industrial control computer and an error setting module respectively perform data communication on a signal high-speed collecting module through a COM port, on one hand, the signal high-speed collecting module collects signals of a sensor and an actuator, on the other hand, the signal high-speed collecting module are electrically connected with the wireless receive/send integral chip through a SPI interface circuit, the processed signals are transmitted to a data receiving module of the training terminal via a data transmitting module and are displayed through a terminal testing panel of the training terminal. The multimedia network training teaching system has the advantages of having actual engine operating condition, teaching theory via training in class, is convenient and flexible in error setting and removing and strong in concealment, and increases skill training effect.

Description

Electronic fuel injection engine multi-media network practice-training teaching system
Technical field
The utility model relates to a kind of tutoring system, particularly relates to a kind of electronic fuel injection engine multi-media network practice-training teaching system.
Background technology
The practice-training teaching of automobile electric control system has three kinds of forms substantially: the one, and the car load real training.The advantage of this method is to need not to research and develop teaching auxiliary system, and the training site is flexible; Shortcoming is that theory teaching and field research disconnect, and fault is provided with inconvenience, and training effect is not good, and teaching is difficult to ensure that the method is not adopted by domestic and international vocational education training organization basically with car.The 2nd, electric-control system testing table real training.This method advantage is that practice-training teaching is effective, and shortcoming is to purchase the electric-control system testing table of many same types, and it is excessive that teaching equipment drops into funds, and the teaching place is difficult to arrange.The 3rd, adopt emulation technology to make every effort to reproduce the overall process of engine, but emulation is by defects simulation point defective to be set artificially, has certain limitation, do not conform to real engine operation, be that fidelity is not high, weakened the function of replicating machine to a great extent, reduction in various degree the effect of skills training.
Summary of the invention
Technical problem to be solved in the utility model is, overcome the shortcoming of prior art, a kind of multimedia technology and computer networking technology utilized is provided, principle of work, fault diagnosis and the maintenance of engine electric control fuel oil spraying system is suitable for the multi-media network practice-training teaching system of practicality.
The technical scheme that the utility model adopted is: a kind of electronic fuel injection engine multi-media network practice-training teaching system comprises block testing stand, interactive workstation and real training terminal; Interactive workstation carries out communication by wireless receiving and dispatching one chip and real training terminal.
This tutoring system also includes projector, and interactive workstation carries out on-the-spot demonstration by digital projector.
Block testing stand comprises electronic fuel injection engine, ECU, sensor and actuator; Interactive workstation is touch industrial computer, touch display screen and the main control and testing board of comprising; Main control and testing board comprises that high-speed signal acquisition module and fault are provided with module; Industrial computer and fault are provided with module and carry out data communication with the high-speed signal acquisition module by com port respectively, the output terminal of industrial computer is connected with digital projector with touch display screen, the signal of high-speed signal acquisition module one side pick-up transducers and actuator, be electrically connected with wireless receiving and dispatching one chip by the SPI interface circuit on the other hand, the signal after handling is sent to real training terminal data receiver module by data transmission blocks; The real training terminal comprises signal recovery module and terminal test panel, and signal reduction back shows by the terminal test panel.
Block testing stand is a moveable structure, and the display panel on the block testing stand is provided with former auto meter, engine electric-controlled signal testing terminal and OBD diagnose interface.
In interactive workstation, the micro controller unit of main control and testing board is handled the signal that high-speed signal acquisition module and fault are provided with module, and the signal after will handling by the image data transport module to industrial computer, handle the touch display screen and/or the digital projector of monitoring in the engine service data back through industrial computer the engine service data shown; The industrial computer reception is handled after fault is provided with transport module to micro controller unit through industrial computer by the fault setting of computer keyboard and/or touching display screen input, exports fault-signal to the engine actuator after micro controller unit is handled.
In the real training terminal, the signal recovery module is successively via the signal reproduction of realizing engine sensor after the conditioning of receiver module, signal processing unit, multipath high-speed D/A, multi-channel PWM and the sensor signal of engine sensor data.
EFI formula engine is Beijing BJ2020VJ C498AI type and Passat 1.8T AWL; The classification of industrial computer is a PC industrial bus computer; The model of wireless receiving and dispatching one chip is nRF2401.
The real training terminal is 1 and adopts the simplex radio data communication to the N platform that receive the signal that wireless receiving and dispatching one chip sends in the interactive workstation respectively, N is a positive integer.
The practice-training teaching system also includes the checking system module, and the checking system module comprises examination answer gatherer and answer device; The real training terminal connects the answer keypad respectively, and with interactive workstation by the wireless telecommunications Data transmission; Examination answer gatherer and touch exchange workstation adopt the RS232 communication, and the answer device adopts wireless data communication with examination answer gatherer.
The beneficial effects of the utility model are: real engine operation condition makes theory teaching " real trainingization "; Practice-training teaching " classroomization "; It is convenient, flexible that fault is provided with release method, disguised strong, improved the skills training effect.
Description of drawings
Fig. 1 is the total block scheme of the utility model experience system;
Fig. 2 is main control and testing board information processing block scheme;
Fig. 3 is an interactive workstation information processing block scheme;
Fig. 4 is that student's real training end message is handled block scheme;
Fig. 5 is engine data acquisition module circuit theory diagrams;
Fig. 6 is that engine failure is provided with the modular circuit schematic diagram;
Fig. 7 is student's real training terminal reduction circuit theory diagrams.
Embodiment
Below, with embodiment the utility model is described in further detail in conjunction with the accompanying drawings:
As Fig. 1, Fig. 2, Fig. 3, Fig. 5 and shown in Figure 6, the utility model electronic fuel injection engine multi-media network practice-training teaching system comprises block testing stand, touch interactive workstation, real training terminal and projector; Interactive workstation carries out communication by wireless receiving and dispatching one chip and real training terminal, interactive workstation is presented at observing and controlling information on the giant-screen by digital projector, merge the personalized multi-media courseware that the teacher makes again, make things convenient for the teacher that engine electric-controlled system is implemented the multimedia practice-training teaching.
Block testing stand comprises electronic fuel injection engine, Engine ECU, sensor and actuator; Block testing stand is a moveable structure, and the testing table display panel is provided with former auto meter, engine electric-controlled signal testing terminal and OBD interface etc.EFI formula engine for Beijing BJ2020VJ with C498AI type and Passat 1.8T AWL.
Interactive workstation is touch industrial computer, touch display screen and the main control and testing board of comprising; Main control and testing board comprises that high-speed signal acquisition module and fault are provided with module; Industrial computer and fault are provided with module and carry out data communication with the high-speed signal acquisition module by com port respectively, the output terminal of industrial computer is connected with digital projector with touch display screen, the signal of high-speed signal acquisition module one side pick-up transducers and actuator, be electrically connected with wireless receiving and dispatching one chip by the SPI interface circuit on the other hand, signal sampling adopts high-speed real-time Signal Spacing and extraction, can not influence the serviceability of engine to the signal extraction of sensor and ECU.In interactive workstation, the micro controller unit of main control and testing board is handled the signal that high-speed signal acquisition module and fault are provided with module, and the signal after will handling by the image data transport module to industrial computer, handle the touch display screen and/or the digital projector of monitoring in the engine service data back through industrial computer the engine service data shown; The industrial computer reception is handled after fault is provided with transport module to micro controller unit through industrial computer by the fault setting of computer keyboard and/or touching display screen input, exports fault-signal to the engine actuator after micro controller unit is handled.Interactive work station can carry out the demonstration and the analysis of data acquisition, signal waveform easily to the Detection ﹠ Controling signal of experience system electric control gear, also can carry out remote failure setting and removing to the electronic fuel injection engine of real training easily.The classification of industrial computer is IPC (a PC industrial bus computer); The model of wireless receiving and dispatching one chip is nRF2401.
As showing of Fig. 4 and Fig. 7, the real training terminal comprises signal recovery module and terminal test panel, signal reduction back shows by the terminal test panel, on student's terminal test panel, draw clear electric spray control system circuit theory diagrams, and according to the needs of teaching at some nodes of circuit with Φ 4mm socket signalization check point, for the various signals of student's synchronism detection in teaching process, and after the teacher is provided with fault by the fault simulation device, the student searches fault by these test points, various sensors and actuator signal are gathered from the electronic fuel injection engine testing table by the TT﹠C system of interactive workstation by the teacher, after signal Processing, pass through data transmission blocks, in the wireless data transmission mode, be sent to the data reception module of student's real training test terminal, by the information of trainee processing module with signal reduction and deliver to corresponding test node on the terminal test panel, be transferred to and adopt photoelectricity to isolate between signal wire on student's terminal test panel and transfer bus, make each student's terminal signaling relatively independent, student's operation is not disturbed mutually.The real training terminal is 1, and N is a positive integer to the N platform, receives the signal of wireless receiving and dispatching one chip respectively, the wireless telecommunications multicast, and the increase and decrease of terminal device can not be restricted; The signal recovery module is successively via the signal reproduction of realizing engine sensor after the conditioning of receiver module, signal processing unit, multipath high-speed D/A, multi-channel PWM and the sensor signal of engine sensor data.The real training terminal adopts the simplex radio data communication, and the operation of student on the terminal test panel neither influences engine electric-controlled system work, also do not influence other real training terminal students' test.Each real training terminal test signal unanimity, the no datat decay.The practice-training teaching system also includes the checking system module, and the checking system module comprises examination answer gatherer and answer device; The real training terminal connects the answer keypad respectively, and with interactive workstation by the wireless telecommunications Data transmission; Examination answer gatherer and touch exchange workstation adopt the RS232 communication, and the answer device adopts wireless data communication with examination answer gatherer, can realize the interconnection interaction of teacher and student, the teaching efficiency of in time testing and assessing.The teacher can monitor the grasp situation of student's real training technical ability at any time, and the student also can give a mark in time for the teachers' instruction quality.Can hold many people simultaneously and carry out real training examination, can accomplish that examination paper are identical, time synchronized, subject maintain secrecy, and be fair and reasonable.During the real training examination, the teacher is provided with the real training test subject by the mode that fault is set, the student is by the testing and diagnosing fault of real training terminal test panel, and the result is sent to examination answer gatherer by the answer device, again by touch exchange workstation self-clocking score, all students' the score of the examination can provide then and there, and computing machine files, school report is printed or the large screen projection publicity all can.
This system truly represents the operating condition of electronic fuel injection engine, and it is flexible that fault is set, and single failure can be provided with 32 kinds, but the setting of combined failure combination in any not only can be provided with and open circuit/short trouble, the fault of sensor input parameter deviation also can be set.The teacher only need adopt touch manner to click that the fault setup menu get final product in the exchange workstation touch display screen when fault was set, and removing fault also only needs click trouble shooting menu to get final product.Disguised strong and thinking novelty, can reflect the various phenomena of the failure of electronic fuel injection engine intuitively, the student is had extremely strong attractive force, transfer student's learning interest and enthusiasm to greatest extent, both make things convenient for the subject setting of practice-training teaching, improved the classroom environment of practice-training teaching again.This system can be China's vocational education and relevant provides new technological means from the duty personnel to the maintenance training and the fault diagnosis of vehicle motor electric injection system.

Claims (9)

1. an electronic fuel injection engine multi-media network practice-training teaching system is characterized in that: comprise block testing stand, interactive workstation and real training terminal; Interactive workstation carries out communication by wireless receiving and dispatching one chip and real training terminal.
2. according to the electronic fuel injection engine multi-media network practice-training teaching system of claim 1, it is characterized in that: also comprise: projector, interactive workstation carries out on-the-spot demonstration by digital projector.
3. according to the electronic fuel injection engine multi-media network practice-training teaching system of claim 1, it is characterized in that: block testing stand comprises electronic fuel injection engine, ECU, sensor and actuator; Interactive workstation is touch industrial computer, touch display screen and the main control and testing board of comprising; Main control and testing board comprises that high-speed signal acquisition module and fault are provided with module; Industrial computer and fault are provided with module and carry out data communication with the high-speed signal acquisition module by com port respectively, the output terminal of industrial computer is connected with digital projector with touch display screen, the signal of high-speed signal acquisition module one side pick-up transducers and actuator, be electrically connected with wireless receiving and dispatching one chip by the SPI interface circuit on the other hand, the signal after handling is sent to real training terminal data receiver module by data transmission blocks; The real training terminal comprises signal recovery module and terminal test panel, and signal reduction back shows by the terminal test panel.
4. according to the electronic fuel injection engine multi-media network practice-training teaching system of claim 3, it is characterized in that: block testing stand is a moveable structure, and the display panel on the block testing stand is provided with former auto meter, engine electric-controlled signal testing terminal and OBD diagnose interface.
5. according to the electronic fuel injection engine multi-media network practice-training teaching system of claim 3, it is characterized in that: in interactive workstation, the micro controller unit of main control and testing board is handled the signal that high-speed signal acquisition module and fault are provided with module, and the signal after will handling by the image data transport module to industrial computer, handle the touch display screen and/or the digital projector of monitoring in the engine service data back through industrial computer the engine service data shown; The industrial computer reception is handled after fault is provided with transport module to micro controller unit through industrial computer by the fault setting of computer keyboard and/or touching display screen input, exports fault-signal to the engine actuator after micro controller unit is handled.
6. according to the electronic fuel injection engine multi-media network practice-training teaching system of claim 3, it is characterized in that: in the real training terminal, the signal recovery module is successively via the signal reproduction of realizing engine sensor after the conditioning of receiver module, signal processing unit, multipath high-speed D/A, multi-channel PWM and the sensor signal of engine sensor data.
7. according to the electronic fuel injection engine multi-media network practice-training teaching system of claim 3, it is characterized in that: EFI formula engine is Beijing BJ2020VJ C498AI type and Passat 1.8T AWL; The classification of industrial computer is a PC industrial bus computer; The model of wireless receiving and dispatching one chip is nRF2401.
8. according to the electronic fuel injection engine multi-media network practice-training teaching system of claim 1, it is characterized in that: the real training terminal be 1 to the N platform, adopt the simplex radio data communication, receive the signal that wireless receiving and dispatching one chip sends in the interactive workstation respectively, N is a positive integer.
9. according to the electronic fuel injection engine multi-media network practice-training teaching system of claim 1, it is characterized in that: the practice-training teaching system also includes the checking system module, and the checking system module comprises examination answer gatherer and answer device; The real training terminal connects the answer keypad respectively, and with interactive workstation by the wireless telecommunications Data transmission; Examination answer gatherer and touch exchange workstation adopt the RS232 communication, and the answer device adopts wireless data communication with examination answer gatherer.
CNU2008200744736U 2008-04-21 2008-04-21 Multimedia network training educating system for electric spraying engine Expired - Fee Related CN201191455Y (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101866560A (en) * 2010-06-02 2010-10-20 深圳市风向标科技有限公司 Network-type intelligent training examination system
CN103646577A (en) * 2013-12-24 2014-03-19 威海广泰空港设备股份有限公司 Evaluation device for generator set simulation training
CN104954405A (en) * 2014-03-28 2015-09-30 厦门雅迅网络股份有限公司 Method and system for collecting and processing electronic injection signal of vehicle
CN108490869A (en) * 2018-05-21 2018-09-04 深圳职业技术学院 A kind of intelligent management system of practical teaching
CN109147443A (en) * 2018-08-28 2019-01-04 亚龙智能装备集团股份有限公司 A kind of intelligent wireless device for answering question unit
CN109712461A (en) * 2019-02-28 2019-05-03 中国人民解放军空军工程大学航空机务士官学校 A kind of aircraft maintenance virtual training system
CN109817050A (en) * 2019-03-07 2019-05-28 中国人民解放军陆军军事交通学院镇江校区 A kind of ships and light boats hydraulic sterring engine maintenance training platform
CN109872596A (en) * 2019-03-30 2019-06-11 孙保海 A kind of real integrated classroom multi-media control system of reason
CN110021225A (en) * 2019-04-19 2019-07-16 天津中汽恒泰教育科技有限公司 A kind of vehicle modules actual training device
CN111047962A (en) * 2019-12-25 2020-04-21 佛山职业技术学院 Internet-based electric control diesel engine rack teaching method and platform
CN111179681A (en) * 2020-01-16 2020-05-19 南京交通职业技术学院 Audi engine fault diagnosis teaching platform based on ODIS
CN111477053A (en) * 2020-03-19 2020-07-31 南京交通职业技术学院 Audi A4L engine fault setting system based on WiFi
CN111524430A (en) * 2020-04-07 2020-08-11 南京交通职业技术学院 Engine fault simulation system based on mobile phone Bluetooth
CN113487932A (en) * 2021-07-30 2021-10-08 重庆两江公共交通有限公司 Bus engine teaching and training system
CN115064042A (en) * 2022-06-29 2022-09-16 河南赛伦交通科技有限公司 Intelligent circuit fault setting system and method based on railway electric signal principle

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101866560A (en) * 2010-06-02 2010-10-20 深圳市风向标科技有限公司 Network-type intelligent training examination system
CN103646577A (en) * 2013-12-24 2014-03-19 威海广泰空港设备股份有限公司 Evaluation device for generator set simulation training
CN103646577B (en) * 2013-12-24 2016-03-16 威海广泰空港设备股份有限公司 Genset simulated training checking device
CN104954405A (en) * 2014-03-28 2015-09-30 厦门雅迅网络股份有限公司 Method and system for collecting and processing electronic injection signal of vehicle
CN104954405B (en) * 2014-03-28 2019-06-25 厦门雅迅网络股份有限公司 A kind of vehicle EFI Signal sampling and processing method and system
CN108490869A (en) * 2018-05-21 2018-09-04 深圳职业技术学院 A kind of intelligent management system of practical teaching
CN109147443B (en) * 2018-08-28 2021-08-06 亚龙智能装备集团股份有限公司 Wireless intelligent answering machine unit equipment
CN109147443A (en) * 2018-08-28 2019-01-04 亚龙智能装备集团股份有限公司 A kind of intelligent wireless device for answering question unit
CN109712461A (en) * 2019-02-28 2019-05-03 中国人民解放军空军工程大学航空机务士官学校 A kind of aircraft maintenance virtual training system
CN109817050A (en) * 2019-03-07 2019-05-28 中国人民解放军陆军军事交通学院镇江校区 A kind of ships and light boats hydraulic sterring engine maintenance training platform
CN109872596A (en) * 2019-03-30 2019-06-11 孙保海 A kind of real integrated classroom multi-media control system of reason
CN110021225A (en) * 2019-04-19 2019-07-16 天津中汽恒泰教育科技有限公司 A kind of vehicle modules actual training device
CN111047962A (en) * 2019-12-25 2020-04-21 佛山职业技术学院 Internet-based electric control diesel engine rack teaching method and platform
CN111179681A (en) * 2020-01-16 2020-05-19 南京交通职业技术学院 Audi engine fault diagnosis teaching platform based on ODIS
CN111477053A (en) * 2020-03-19 2020-07-31 南京交通职业技术学院 Audi A4L engine fault setting system based on WiFi
CN111524430A (en) * 2020-04-07 2020-08-11 南京交通职业技术学院 Engine fault simulation system based on mobile phone Bluetooth
CN113487932A (en) * 2021-07-30 2021-10-08 重庆两江公共交通有限公司 Bus engine teaching and training system
CN115064042A (en) * 2022-06-29 2022-09-16 河南赛伦交通科技有限公司 Intelligent circuit fault setting system and method based on railway electric signal principle

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Granted publication date: 20090204

Termination date: 20130421