CN108550293A - Back-mixing experiment teaching system and experimental method based on embedded intelligence on-line system - Google Patents
Back-mixing experiment teaching system and experimental method based on embedded intelligence on-line system Download PDFInfo
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- CN108550293A CN108550293A CN201810186844.8A CN201810186844A CN108550293A CN 108550293 A CN108550293 A CN 108550293A CN 201810186844 A CN201810186844 A CN 201810186844A CN 108550293 A CN108550293 A CN 108550293A
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- G09B5/14—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations with provision for individual teacher-student communication
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Abstract
The invention discloses back-mixing experiment teaching system and experimental method based on embedded intelligence on-line system, which is made of back-mixing experimental provision module, sensor assembly, embedded intelligence on-line system, control module, cross-platform mobile terminal Teaching Module and teacher distal end interactive teaching control platform.Back-mixing experiment parameter is transferred to embedded intelligence on-line system through sensor assembly, and embedded intelligence on-line system manipulates back-mixing experimental provision module by control module；And embedded intelligence on-line system is connect through network with teacher distal end interactive teaching control platform, realizes experimental teaching remote interaction function.The present invention has the function of remote control back-mixing experimental provision, experiment safety alarm, real time education interaction etc., can realize various working during the experiment；Mobile end module can complete experimental data acquisition, video-see, data query and download, analysis calculates and historical problem is looked back.The present invention is suitable for fields such as Experimental Teaching for Chemistry Engineering, intelligent tutoring controls.
Description
Technical field
The present invention provides back-mixing experiment teaching systems and its experimental method based on embedded intelligence on-line system, especially
Suitable for Experimental Teaching for Chemistry Engineering, computer-assisted instruction and intelligent tutoring control etc. fields.
Background technology
Back-mixing is the key concept in Chemical Reaction Engineering course teaching, and material back-mixing degree can influence to react in reactor
The distribution of concentration and temperature in device, to influence the result of reaction.In traditional back-mixing experimentation, generally use tubular reactor
And tank reactor analyzes back-mixing degree by the residence time destribution under the conditions of measurement Steady Experimental, and students is helped to return
Mixed concept.
Various new reactor industrially is developed at present, such as：Circulation flow reactor, recirculation reactor etc..It is producing
In the process, many exceptions can also occur for reactor operation.And in traditional back-mixing teaching Process of experiment, these contents of courses compared with
It is few to embody so that student is inadequate to the degree of awareness of industrial reactor, lacks the ability of reply actual production situation；Lack simultaneously
Experimental result Real-time Feedback and information is looked back after class, be unfavorable for student and correct experiment error in time and carry out study self-examination.
Invention content
For in current back-mixing teaching Process of experiment, type of reactor is few, experimental teaching content and industrial practice gap compared with
Big problem.The present invention provides back-mixing experiment teaching systems and its experimental method based on embedded intelligence on-line system.
The back-mixing experiment teaching system based on embedded intelligence on-line system, it is characterised in that tested and filled by back-mixing
It is remote to set module, sensor assembly, embedded intelligence on-line system, control module, cross-platform mobile terminal Teaching Module and teacher
Interactive teaching control platform composition, sensor module interface and control module interface is held to be connected with back-mixing experimental provision module,
The experiment parameter of back-mixing experimental provision module is transferred to embedded intelligence on-line system by sensor assembly, and embedded intelligence exists
Linear system system manipulates back-mixing experimental provision module by control module；And embedded intelligence on-line system is remote with teacher by internet
The connection of interactive teaching control platform is held, realizes that experimental teaching remote interaction function, control module are connect by I/O or RS485 communications
Mouth is connected with embedded intelligence on-line system, is communicated.
The back-mixing experiment teaching system based on embedded intelligence on-line system, it is characterised in that embedded intelligence exists
The hardcore of linear system system is embedded main board, includes at least a high-speed data acquisition machine and an instructional strategies machine.Teaching
Tactful machine and high-speed data acquisition machine are completed to connect by internal communication interface, realize the function of embedded intelligence on-line system,
Installation process, which can be used, to be installed concentratedly or distributed Installation Modes.
The back-mixing experiment teaching system based on embedded intelligence on-line system, it is characterised in that back-mixing experimental provision
Module includes tubular reactor, circulating tube type reactor, continuous tank reactor, circulation flow reactor, fixed bed reactors, fluidisation
Bed reactor in one or more permutation and combination and with reactor by the mobile phase storage tank of piping connection, tracer storage tank and
Liquid transporting apparatus.
The back-mixing experiment teaching system based on embedded intelligence on-line system is it is characterized in that sensor assembly packet
Include conductivity sensor, flow sensor, liquid level sensor and temperature sensor etc..
The back-mixing experiment teaching system based on embedded intelligence on-line system, it is characterised in that control module includes
Flow-control module, runner control module, automatic sampling module and system interference module.
The back-mixing experiment teaching system based on embedded intelligence on-line system, it is characterised in that cross-platform mobile terminal
Teaching Module is obtained for completing experimental data, experiment video-see, experimental data are inquired and downloaded, analysis calculates and history is asked
The functions such as topic review.
The back-mixing experiment teaching system based on embedded intelligence on-line system, it is characterised in that teacher distal end interaction
Control platform of imparting knowledge to students is for tele-experimentation presentation of information and management, instructional strategies adjustment and security monitoring function.
The back-mixing experiment teaching system based on embedded intelligence on-line system, it is characterised in that embedded intelligence exists
Linear system system includes embedded main board, storage medium, clock circuit module, RS485 communication modules, buzzer module, liquid crystal display
Module, camera module, radiator fan, switch power module, power supply instruction switch and electronics electricity box.Instructional strategies machine includes
Internal clocking module, internal communication interface, USB interface, RS-485 interfaces, network interface and HDMI interface；High-speed data acquisition
Machine includes sensor interface, control unit interface and internal communication interface.
The back-mixing experiment teaching system based on embedded intelligence on-line system, it is characterised in that embedded intelligence exists
Line system software is based on Linux platform, is developed with Python, C language, SQLite databases and MySQL database.Communication program
Data are acquired and stored from back-mixing experiment module with bottom data capture program, through GUI application programs, export visualization interface.
Can real-time display experimental data and Trendline, intellectual analysis data simultaneously provide operation indicating；Camera captured in real-time device is transported
Market condition；Receive user's operation and instruction input by keyboard and mouse；If device parameter is abnormal, program will trigger scene and
Long-range dual-alarm.
The experimental method of the back-mixing experiment teaching system based on embedded intelligence on-line system, it is characterised in that packet
Include following steps：
1）It is separately added into liquid in the mobile phase storage tank, tracer storage tank of back-mixing experimental provision module, operation is exhausted, really
There is no bubble presence in keeping road and liquid transporting apparatus, checks back-mixing experimental provision module all parts situation；
2）The power supply of embedded intelligence on-line system is opened, booting is waited for finish, system completes self-test, and software is completed communication and surveyed
Examination；
3）Read the setting value of teacher distal end interactive teaching control platform；Back-mixing experimental provision module is manipulated simultaneously, passes through control
The mode that module changes equipment operating parameter adds disturbance；
4）The liquid transporting apparatus of back-mixing experimental provision module is opened, the data acquisition function of high-speed data acquisition machine, root are opened
The requirement of experiment of handout or teacher distal end interactive teaching control platform carries out experimental implementation according to the experiment；
5）In the high-speed data acquisition machine acquisition experimentation of embedded intelligence on-line system, experimental provision parameter information, and will
The information gives instructional strategies machine with transmitted in data packet form；Instructional strategies machine analyzes data and real-time display；
6）After repeating experiment acquisition multipacket message, using the data analysis module of instructional strategies machine, back-mixing under different condition is obtained
Feature, according to back-mixing experimental data under different experimental conditions, the disturbance class of analysis teacher distal end interactive teaching control platform transmission
Type, analysis disturbance factor are influenced caused by experiment；
7）After experiment, embedded intelligence on-line system is closed, back-mixing experimental provision mould liquid in the block is drained.
By using above-mentioned technology, compared with prior art, which ties on the basis of increasing novel experimental equipment
Theories and the technology such as fields such as computer-assisted instruction and intelligent tutoring control are closed, particularly suitable for Experimental Teaching for Chemistry Engineering.
Beneficial effects of the present invention are as follows：
The present invention is directed in current back-mixing teaching Process of experiment, and type of reactor is few, experimental teaching content and industrial practice gap
Larger problem provides back-mixing experiment teaching system and its experimental method based on embedded intelligence on-line system；
1）Its embedded intelligence on-line system can high speed acquisition sensing data, carry out experimental implementation inspection, data processing and
Error analysis, can rapid feedback experiment information, can realize experimental teaching interact, experimentation interaction guidance, experimental result
Prompting is checked and reformed, student is helped to correct experiment error, grasp experimental operating skill；
2）The changeability of experimental provision can be realized, in same set of experimental provision by artificially manufacturing experimental implementation disturbance
It realizes different operation operating modes, enriches the content of experimental teaching；
3）After through safety certification, teacher distal end interactive teaching control platform can remote control embedded intelligence on-line system,
Realize the functions such as remote teaching, manipulation back-mixing experimental provision, experiment safety alarm, real-time calls teacher.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the back-mixing experimental provision schematic diagram of the embodiment of the present invention 1；
Fig. 3 is the back-mixing experimental provision schematic diagram of the embodiment of the present invention 2.
Specific implementation mode
With reference to the accompanying drawings of the specification and embodiment invention is further explained.
Embodiment 1：
As shown in Figure 1, the back-mixing experiment teaching system based on embedded intelligence on-line system of the present invention includes as follows：
Back-mixing experimental provision module 1：Circulating tube type reactor, mobile phase storage tank 102, tracer storage tank 106 and liquid conveying dress
Set, circulating tube type reactor be specially in recycle circulation flow reactor 101, and the interior cycle top of circulation flow reactor 101, middle part and
Bottom is respectively provided with a nozzle, and liquid transporting apparatus is centrifugal pump 103；
Sensor assembly 2：3 conductivity sensors 201 are respectively arranged in the exit of interior cycle circulation flow reactor 101, interior follow
At 1/3 height of ring outer tube and at 2/3 height, liquid level sensor 202, flow sensor 203 and oxygen level sensor 204；
Control module 4：Including runner control module, it is respectively used to nozzle, the automatic sampling module at control top, middle part and bottom
With system interference module, automatic sampling module and system interference module are for simulating dead zone block, baffle liftable etc.；
The mobile phase storage tank 102, tracer storage tank are connect with interior cycle circulation flow reactor 101 by pipeline, in connecting pipe
Equipped with centrifugal pump 103 and flow sensor 203, mobile phase and tracer are sent by interior cycle circulation reaction by centrifugal pump 103
In device 101, flow is controlled by flow sensor 203, and the nozzle of interior cycle circulation flow reactor 101 connects nitrogen steel by pipeline
Bottle 104 and air compressor 105, and connecting pipe is equipped with flow sensor 203 for controlling charge flow rate, while interior following
The nozzle of ring circulation flow reactor 101 is equipped with runner control module, for controlling the flow on nozzle, interior cycle circulation flow reactor
Conductivity sensor 201, liquid level sensor 202, flow sensor 203 and oxygen level sensor 204 are additionally provided on 101；
Embedded intelligence on-line system 3 includes one piece of data gather computer 301 and one piece of instructional strategies machine 302, data gather computer 301
It is connect with instructional strategies machine 302 and all the sensors, after the data of sensor are acquired, sends instructional strategies machine 302, data to
Harvester 301 and instructional strategies machine 302 connect teacher distal end interactive teaching control platform 6；
When work, the interior cycle circulation flow reactor 101 of back-mixing experimental provision module 1 is opened, in mobile phase storage tank 102, tracer
Respective liquid is added in storage tank, carries out 104 air inlet of nitrogen cylinder, operation is exhausted, it is ensured that in pipeline and liquid transporting apparatus
There is no bubble presence, checks back-mixing experiment module all parts situation；Open embedded intelligence on-line system 3, embedded intelligence
On-line system 3 includes one piece of high-speed data acquisition machine 301 and one piece of instructional strategies machine 302, data gather computer 301 and instructional strategies
Machine 302 connects teacher distal end interactive teaching control platform 6, after receiving experiment information, data gather computer 301 and instructional strategies machine
302 select suitable runner according to experiment information, flow, carry out experimental implementation, collection analysis experiment information；When teacher distal end is handed over
After mutually teaching control platform 6 sends interference information, interior cycle circulation flow reactor 101 carries out simulated experiment, by data gather computer 301
Acquire information, and by data policy machine 302 compare normal operating when experiment parameter, Analysis interference source, discuss disturbance because
Influence of the element to reactor back-mixing, experimental data, experiment video, experimental data, analysis result, historical problem review etc.
Data is stored to cross-platform mobile terminal Teaching Module 5, convenient for inquiry, download etc..
Embodiment 2：
Except what is write out in detailed below, other conventional components and connection relation are the same as embodiment 1；Back-mixing experimental provision in the embodiment
Module 1 is fixed bed reactors 101a, and static mixer is equipped between fixed bed reactors 101a and mobile phase storage tank 102
106；
Sensor assembly 2：3 conductivity sensors are respectively arranged in 106 entrance of static mixer, solid-liquid mixer 106 exports
And the outlets fixed bed reactors 101a, liquid level sensor 202, flow sensor 203, liquid level sensor 202 are arranged in fixed bed
On reactor 101a, flow sensor 203 is arranged on 102 discharge nozzle road of mobile phase storage tank；
Control module 4：Including flow sensor 203, runner control module（For simulating pipeline leakage, short circuit）, automatic sampling
Module and system interference module（Simulate dead zone block, simulation pipeline blockage）；
As shown, its operating process is as follows：The fixed bed reactors 101a for opening back-mixing experimental provision module 1, in mobile phase
Liquid is added in storage tank 102, tracer storage tank 107, operation is exhausted, it is ensured that does not have bubble in pipeline and liquid transporting apparatus
In the presence of inspection back-mixing experiment module all parts situation；
Open embedded intelligence on-line system 3, the data gather computer 301 in embedded intelligence on-line system 3 and instructional strategies machine
302 connection teacher distal end interactive teaching control platforms 6, after receiving experiment information, data gather computer 301 and instructional strategies machine
302 select suitable runner according to experiment information, flow, carry out experimental implementation, collection analysis experiment information；When teacher distal end is handed over
After mutually teaching control platform 6 sends interference information, interior cycle circulation flow reactor 101 carries out simulated experiment, by data gather computer 301
Acquire information, and by data policy machine 302 compare normal operating when experiment parameter, Analysis interference source, discuss disturbance because
Influence of the element to reactor back-mixing, experimental data, experiment video, experimental data, analysis result, historical problem review etc.
Data is stored to cross-platform mobile terminal Teaching Module 5, convenient for inquiry, download etc..
The above is only a preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, without departing from the principle of the present invention, several improvement can also be made, these improvement also should be regarded as the present invention's
Protection domain.
Claims (10)
1. the back-mixing experiment teaching system based on embedded intelligence on-line system, it is characterised in that by back-mixing experimental provision module
（1）, sensor assembly（2）, embedded intelligence on-line system（3）, control module（4）, cross-platform mobile terminal Teaching Module（5）With
And teacher distal end interactive teaching control platform（6）Composition, sensor assembly（2）Interface and control module（4）Interface is real with back-mixing
Experiment device module（1）It is connected, back-mixing experimental provision module（1）Experiment parameter pass through sensor assembly（2）It is transferred to insertion
Formula intelligent online system（3）, embedded intelligence on-line system（3）Pass through control module（4）Manipulate back-mixing experimental provision module
（1）；And embedded intelligence on-line system（3）Pass through internet and teacher distal end interactive teaching control platform（6）Connection is realized real
Test teaching remote interaction function, control module（4）Pass through I/O or RS485 communication interfaces and embedded intelligence on-line system（3）Even
It connects, communicate.
2. the back-mixing experiment teaching system based on embedded intelligence on-line system as described in profit requires 1, it is characterised in that embedded
Formula intelligent online system（3）Hardcore be embedded main board, include at least a high-speed data acquisition machine（301）With one
Instructional strategies machine（302）；Instructional strategies machine（302）With high-speed data acquisition machine（301）It completes to connect by internal communication interface,
Realize the function of embedded intelligence on-line system, installation process, which can be used, to be installed concentratedly or distributed Installation Modes.
3. the back-mixing experiment teaching system based on embedded intelligence on-line system as described in profit requires 1, it is characterised in that back-mixing
Experimental provision module（1）Including tubular reactor, circulating tube type reactor, continuous tank reactor, circulation flow reactor, fixed bed
One or more permutation and combination in reactor, fluidized-bed reactor and with reactor by the mobile phase storage tank of piping connection,
Tracer storage tank and liquid transporting apparatus.
4. the back-mixing experiment teaching system based on embedded intelligence on-line system is it is characterized in that sensing as described in claim 1
Device module（2）Including conductivity sensor, flow sensor, liquid level sensor and temperature sensor etc..
5. the back-mixing experiment teaching system based on embedded intelligence on-line system as described in claim 1, it is characterised in that control
Molding block（4）Including flow-control module, runner control module, automatic sampling module and system interference module.
6. the back-mixing experiment teaching system based on embedded intelligence on-line system as described in claim 1, it is characterised in that across
Platform mobile terminal Teaching Module（5）It is obtained for completing experimental data, experiment video-see, experimental data are inquired and downloaded, divide
The functions such as analysis calculates and historical problem is looked back.
7. the back-mixing experiment teaching system based on embedded intelligence on-line system as described in claim 1, it is characterised in that religion
Shi Yuanduan interactive teaching control platforms（6）For tele-experimentation presentation of information and management, instructional strategies adjustment and security monitoring work(
Energy.
8. the back-mixing experiment teaching system based on embedded intelligence on-line system as claimed in claim 2, it is characterised in that embedding
Enter formula intelligent online system（3）Including embedded main board, storage medium, clock circuit module, RS485 communication modules, buzzer
Module, LCD MODULE, camera module, radiator fan, switch power module, power supply instruction switch and electronics electricity box；
Instructional strategies machine（302）Including internal clocking module, internal communication interface, USB interface, RS-485 interfaces, network interface and
HDMI interface；High-speed data acquisition machine includes sensor interface, control unit interface and internal communication interface.
9. the back-mixing experiment teaching system based on embedded intelligence on-line system as claimed in claim 2, it is characterised in that embedding
Enter formula intelligent online system software and be based on Linux platform, is opened with Python, C language, SQLite databases and MySQL database
Hair；Communication program and bottom data capture program acquire and store data from back-mixing experiment module, through GUI application programs, output
Visualization interface；Can real-time display experimental data and Trendline, intellectual analysis data simultaneously provide operation indicating；Camera is real-time
Filming apparatus operating condition；Receive user's operation and instruction input by keyboard and mouse；If device parameter is abnormal, program will
Triggering scene and long-range dual-alarm.
10. a kind of experiment side of the back-mixing experiment teaching system based on embedded intelligence on-line system as described in claim 1
Method, it is characterised in that include the following steps：
1）In back-mixing experimental provision module（1）Mobile phase storage tank, be separately added into liquid in tracer storage tank, behaviour is exhausted
Make, it is ensured that there is no bubble presence in pipeline and liquid transporting apparatus, check back-mixing experimental provision module（1）All parts situation；
2）Open embedded intelligence on-line system（3）Power supply, wait for booting finish, system complete self-test, software complete communication
Test；
3）Read teacher distal end interactive teaching control platform（6）Setting value；Manipulate back-mixing experimental provision module simultaneously（1）, lead to
Cross control module（4）The mode for changing equipment operating parameter adds disturbance；
4）Open back-mixing experimental provision module（1）Liquid transporting apparatus, open high-speed data acquisition machine（301）Data acquisition
Function, according to experiment handout or teacher distal end interactive teaching control platform（6）Requirement of experiment carry out experimental implementation；
5）Embedded intelligence on-line system（3）High-speed data acquisition machine（301）It acquires in experimentation, experimental provision parameter letter
Breath, and give the information to instructional strategies machine with transmitted in data packet form（302）；Instructional strategies machine（302）Analysis data are simultaneously real-time
Display；
6）After repeating experiment acquisition multipacket message, instructional strategies machine is utilized（302）Data analysis module, obtain under different condition
Back-mixing characteristics, according to back-mixing experimental data under different experimental conditions, analysis teacher distal end interactive teaching control platform（6）It sends
Type is disturbed, analysis disturbance factor is influenced caused by experiment；
7）After experiment, embedded intelligence on-line system is closed（3）, drain back-mixing experimental provision module（1）In liquid.
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