CN104537906B - A kind of Internet of Things remote measurement and control teaching experiment system platform - Google Patents

A kind of Internet of Things remote measurement and control teaching experiment system platform Download PDF

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Publication number
CN104537906B
CN104537906B CN201410816674.9A CN201410816674A CN104537906B CN 104537906 B CN104537906 B CN 104537906B CN 201410816674 A CN201410816674 A CN 201410816674A CN 104537906 B CN104537906 B CN 104537906B
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China
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experiment
platform
experiment porch
control
internet
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CN201410816674.9A
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Chinese (zh)
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CN104537906A (en
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韩九强
李俊杰
刘俊
张新曼
刘瑞玲
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西安交通大学
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B5/00Electrically-operated educational appliances
    • G09B5/08Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L29/00Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/00 - H04L27/00
    • H04L29/02Communication control; Communication processing
    • H04L29/06Communication control; Communication processing characterised by a protocol
    • H04L29/08Transmission control procedure, e.g. data link level control procedure

Abstract

A kind of Internet of Things remote measurement and control teaching experiment system platform, comprises the experiment porch group be made up of several experiment porchs; With experiment porch one to one for obtaining the experiment porch monitoring client of the test figure of experiment porch, each experiment porch monitoring client is a node in Zig-Bee wireless network; By the educational server that GPRS wireless network communicates with experiment porch monitoring client; The student experimenting end communicated with educational server by Internet cable network; And by teaching remote measurement and control end that Internet cable network communicates with educational server, the present invention utilizes the form of three bending moment, constitute that set of system is strong, the complete Internet of things system of information communication superior performance and feature richness, realize efficient connection to multiple experiment porch, monitoring client, server and experiment end, thus reach the functions such as the teleengineering support of experimental data and operation information, dynamic modeling, lasting storage, real-time video monitoring, cloud computing process and automatic speech early warning.

Description

A kind of Internet of Things remote measurement and control teaching experiment system platform
Technical field
The invention belongs to instructional device field, relate to a kind of teaching experiment system platform, particularly a kind of Internet of Things remote measurement and control teaching experiment system platform.
Background technology
In the last few years, along with science and technology develop rapidly and class teaching content and form enrich constantly with perfect, the classroom lecture contents of traditional form cannot meet student gradually and improve manipulative ability, cultivates the requirement of creativity consciousness.Therefore, numerous colleges and universities introduce experiment class hands-on course at classroom teaching gradually in recent years, it can be used as a part indispensable in classroom instruction teaching system.
By teacher's giving lessons and experiment instruction in classroom experiment class teaching process, student not only while the various experimental apparatus of skilled use carries out experimental data acquisition and operation, can also promote actual operating ability and cultivate creativity consciousness in all directions.Therefore, experiment class course teaching becomes increasingly conspicuous in the importance of whole teaching system, receives Faculty and Students and more and more pays close attention to.But, the kinds of experiments system platform generally used in China at present, more and more be difficult to meet of a great variety, require complicated curriculum experiment Contents and request, become restriction simultaneously and improve classroom teaching efficiency and training student and start to put into practice and the key factor of innovation ability.
At present by the experimental system platform that numerous colleges and universities use, all have that function singleness, independence are strong, data sharing difference and a defect such as restricting condition for use is many.In the process of giving lessons, each experiment porch must repeatedly adjust according to different experiments content continually, has very high complicacy and independence, causes great inconvenience to teacher resource and experimental resources.In addition, single experiment porch can only carry out simple process to the data of oneself, cannot share the experimental data of other experiment porchs, and Internet resources more cannot be utilized to carry out operated from a distance, data acquisition and large data process to experiment porch.Therefore, invent a kind of teaching experiment system based on technology of Internet of things, multiple experiment porch, control end and processing terminal are organically organized and connects together, form a set of experiential function to enrich, operate simple and easy, that systemic-function is powerful, data-handling capacity is superior experimental system platform, there is very important and profound significance.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of Internet of Things remote measurement and control teaching experiment system platform, solve that experiment porch function singleness in background, independence are strong, data sharing difference and the problem such as restricting condition for use is more, this teaching experiment system platform possesses the message transmission capability of various modes, have feature richness, overall performance superior, multiple advantages such as operated from a distance, data sharing abilities be strong can be carried out.
To achieve these goals, the technical solution used in the present invention is:
A kind of Internet of Things remote measurement and control teaching experiment system platform, comprising:
The experiment porch group be made up of several experiment porchs 6;
With several experiment porchs 6 described experiment porch monitoring client 5 one to one, described experiment porch monitoring client 5 is for obtaining the test figure of experiment porch 6, each experiment porch monitoring client 5 is a node in Zig-Bee wireless network, realizes carrying out data access to remaining experiment porch monitoring client 5;
By the educational server 7 that GPRS wireless network communicates with described experiment porch monitoring client 5, educational server 7 regularly, incessantly obtains in real time and historical test data from each experiment porch monitoring client 5;
By the student experimenting end 8 that Internet cable network communicates with described educational server 7, described student experimenting end 8 is connected to the experiment porch 6 corresponding with by educational server 7, on-the-spot or long-rangely carries out experimental implementation;
And,
By the teaching remote measurement and control end 9 that Internet cable network communicates with described educational server 7, described teaching remote measurement and control end 9 is all experiment porchs 6 of monitoring in real time, real-time and the historical test data in described educational server 7 is transferred in inquiry, initiatively or after the singularity in experiment alerting signal receiving experiment porch monitoring client 5 transmission carry out brake hard to corresponding experiment porch 6, going forward side by side works knows.
Described experiment porch 6 is integrated with the multiple sensors of band remote control function and corresponding drive unit, is controlled by experiment porch monitoring client 5.Student experimenting end 8 passes through Internet network, experimental implementation instruction is sent to educational server 7, educational server 7 is by GPRS wireless network, forward experimental implementation instruction to experiment porch control end 5, control the drive unit of related sensor and obtain real time data, thus realizing the Long-distance Control to experiment porch 6.
Described experiment porch 6 adopts tower crane type structure, installs GPS sensor 1, installation length sensor 2 in the middle part of platform platform arm on platform top, and rotary sensor 3 is installed in platform platform arm rear end, installs inclination sensor 4 in the middle part of platform.
Real time dynamic model is set up in described experiment porch monitoring client 5, modeling analysis is carried out to the data of the various sensor drive devices of multiple experiment porch 6, when analysis result exceeds default regulating scope, carry out audio alert, described real time dynamic model is: experiment porch monitoring client 5 detects in real time and upgrades measured value and the state value of multiple sensors and drive unit, as the input quantity of this dynamic model, then require to process data based on different experiments, classification, calculate and merge, obtain the theoretical output quantity of this model, and accordingly experiment rationality and safety analysis are carried out to experimental data and operational order, when experimental data deviation theory value is excessive or experimental implementation danger coefficient is excessive, carry out automatic alarm operation.
Described experiment porch monitoring client 5 sends log-on message to educational server 7, application is connected into educational server 7, educational server 7 adopts heartbeat polling mechanism, for all experiment porch control ends 5 distribute independent IP automatically, and constantly obtain according to certain hour interval, store and the real-time experimental state of checking experiment control end 5 and experimental data, set up dynamic test system platform model and collect data, and by de-redundancy and the valid data after merging, be forwarded to student experimenting end 8, be stored in the Database Systems of SD card simultaneously and back up.
Described experiment porch monitoring client 5 configuration monitoring probe, the application drawing picture of Real-time Obtaining experiment porch 6.
Obtained real-time and historical test data is uploaded to cloud platform and carries out long-range computing and data processing by described teaching remote measurement and control end 9, and marks to many group experimental results and compare, and obtains analysis report.
All control operations of described educational server 7 pairs of student experimenting ends 8 and teaching remote measurement and control end 9, are provided with different affairs priority and take priority transaction scheduling strategy.It is the highest that scheduling strategy is that teaching remote measurement and control end 9 sends the affairs priority of operation, can obtain the priority processing power of server; The affairs priority that student experimenting end 8 sends operation is lower, can be interrupted by the affairs that priority is higher or cancel.By arranging the affairs priority list in educational server 7, all transaction operations are defined as different priority, thus realize experimental system platform to all operations reasonable, dispatch in order.
Compared with prior art, this invention takes the design philosophy that software and hardware combines, adopt the implementation method of " three bending moment ", kinds of experiments stage apparatus, system control device and signal conditioning package are integrated into an experimental system platform that system performance is superior, information interaction performance is stronger, thus achieve the teaching purpose of training student manipulative ability and innovation coordination consciousness.
Accompanying drawing explanation
Fig. 1 is Internet of Things remote measurement and control teaching experiment system platform schematic diagram.
Fig. 2 is the system flowchart of Internet of Things remote measurement and control teaching experiment system platform.
Fig. 3 is the multiple sensors deployment diagram on a kind of experiment porch.
Embodiment
Embodiments of the present invention are described in detail below in conjunction with drawings and Examples.
As shown in Figure 1, a kind of Internet of Things remote measurement and control teaching experiment system platform, comprises following chief component: experiment porch group, experiment porch monitoring client 5, educational server 7, student experimenting end 8 and teaching remote measurement and control end 9.Experiment porch group is made up of several experiment porchs 6, experiment porch monitoring client 5 and experiment porch 6 one_to_one corresponding.
As shown in Figure 2, the present invention adopts the building form of " three bending moment ", defines the Internet of things system of complete set.Wherein, carry out information interaction by Zig-Bee wireless network and share between each experiment porch monitoring client 5, educational server 7 carries out connecting and controls to all experimental system platform monitoring ends 5 by GPRS wireless network, and student experimenting end 8 and 9, remote measurement and control end of imparting knowledge to students are undertaken by Internet cable network and educational server alternately.
Experiment porch group of the present invention, which includes possess multiple degrees of freedom, can free assembly and disassembly, possess the kinds of experiments platform 6 of the functions such as machine vision.Each independently experiment porch 6 is according to different experiments content and requirement, be equipped with multiple sensors and respective drive device, possesses the compatible multiple sensors function of same port, be connected to the experiment porch control end 5 corresponded, and various informative design and repacking can be carried out according to different requirement of experiment.
A concrete example, as shown in Figure 3, experiment porch 6 adopts tower crane type structure, installs GPS sensor 1, installation length sensor 2 in the middle part of platform platform arm on platform top, and rotary sensor 3 is installed in platform platform arm rear end, installs inclination sensor 4 in the middle part of platform.
Experiment porch monitoring client 5 of the present invention, possesses acquisition of information, display and processing module and GPRS and Zig-Bee information transmission modular.Experiment porch monitoring client 5 can identify the diversity of experiment porch 6 in real time automatically, the real-time information of display experiment porch 6 upper sensor, and possesses the automatic speech alarming function to dangerous operation and dangerous experimental state.Meanwhile, each experiment porch control end 5, as a partial node of Zig-Bee wireless network, carries out mutual wireless telecommunications by the single centre node in Zig-Bee, and other all monitoring clients are carried out to data access and compare.And sending log-on message to educational server 7, application is connected into educational server 7 and sets up automatic speech Early-warning Model.In addition, experiment porch monitoring client 5 possess utilize that algorithms of different model merges multiple sensors information, denoising, de-redundancy and automatic rejection dirty data function.
Experiment porch monitoring client 5 of the present invention, possesses and sets up dynamic model and the function of automatic early-warning.Experiment porch monitoring client 5, by the multiple sensors on Real-Time Monitoring experiment porch 6 and drive unit thereof, gets the variable quantity of the kind of different sensors, quantity, measured value, state value and above-mentioned four kinds of data, as the input quantity of this dynamic model.Subsequently for content and the requirement of different experiments, in conjunction with related algorithm and theory, input quantity is carried out to the calculating such as data processing, classification and fusion, obtain the theoretical output quantity of this model.Contrast and analysis is carried out, the rationality of judgment experiment operation and correctness according to this theoretical output quantity and expection experimental result.If experiment value comparatively theoretical value in the reasonable scope, and this sequence of maneuvers is to the security moment-less influence of experiment table 6, then program continues normal operation.Otherwise system, by trigger alarm device, is carried out automatic speech alarming and alerting signal is sent to teaching remote measurement and control end 9.
Educational server 7 of the present invention, possesses how all experiment porch 6 acquisition of informations, storage, the database module of process and GPRS and Internet information transmission modular.Educational server 7 is comparatively large by coverage, generation data traffic is little and transmission speed GPRS wireless network faster, adopt " heartbeat poll " mechanism, for all experiment porch control ends 5 distribute independent IP automatically, and according to the timing of certain hour interval, the real-time experimental state constantly obtaining storage and checking experiment control end 5 and data message, namely all to the multiple sensors information of the experiment porch 6 of server registration, and all history experimental datas are stored to database.Educational server 7 also can be set up dynamic test system platform model and collect data, and by de-redundancy and the valid data after merging, is forwarded to student experimenting end 8, and is stored in the Database Systems of SD card and backs up.In addition, educational server 7 can be connected to cloud service platform, carries out high speed and large-scale accurate operational to large complicated data.The software reference topological structure of educational server 7 realizes, and is provided with different affairs priority and takes priority transaction scheduling strategy, possessing clash handle administrative mechanism.
Student experimenting end 8 of the present invention, carries out practical operation by the student participated in the experiment, and has the functions such as remote measurement and control function, information processing and Internet information transmission.Student experimenting end 8 supports execute-in-place, also supports to utilize Internet network operated from a distance function simultaneously.Student experimenting end 8 connects educational server 7 by Internet cable network, operates and obtain real time sensor data and experimental data to the drive unit of each sensor of experiment porch 6.In addition, student experimenting end 8 has Dynamic Establishing empirical model and data simulation function, can propose operation indicating and rationality suggestion according to real-time experimental data to student.
The present invention imparts knowledge to students remote measurement and control end 9, is connected to Internet cable network, is used, have the human-computer interaction functions such as Long-distance Control, data processing, video monitoring by the teacher participating in experiment.Teaching remote measurement and control end 9 is by multi-threaded parallel technology, Database Systems in searching teaching server 7, transfer history experimental data and real-time experimental data, all experiment porchs 6 can be monitored in real time by video probe, also initiatively or after receiving experiment porch monitoring client alerting signal can carry out brake hard to relevant experiment porch 6, and carry out fast notification by GPRS network with the form such as note, multimedia message.
After experiment terminates, teacher can get all experimental datas in educational server 7 by teaching remote measurement and control end 9, and be uploaded to cloud platform and carry out long-range computing and data processing, also support that teacher inputs scoring specification and model, automatically many group experimental results marked and compared, and obtaining analysis report.
The present invention experimental system platform, introduce design concept and the embedded configuration designing technique of topological structure, to all control operations of student experimenting end 8 with teaching remote measurement and control end 9, be provided with different affairs priority and take priority transaction scheduling strategy, the various conflict that the system that rationally solves may cause in operational process and abnormal occurrence.In addition, the built-in standby power supply of system, can prevent the loss of data phenomenon because the reasons such as power-off produce.
Above-mentioned priority transaction scheduling strategy comprises, and the affairs priority that teaching remote measurement and control end 9 sends operation is set to the highest one group, and affairs priority student experimenting end 8 being sent operation is set to lower one group.The operation that affairs priority is higher, can obtain the priority processing of server, and does not affect by the transaction operation that priority is lower in operation implementation procedure.Only have after the operation that priority is higher completes, the operation that priority is lower just can obtain server response, and can be interrupted by the affairs that priority is higher or cancel in operational process.The all operations sent by teaching remote measurement and control end 9 and student experimenting end 8 is all set to different affairs priority, and is stored in affairs priority list.Server, according to affairs priority list, carries out different responses and operation to different operations, thus realizes rationally and in order dispatching all operations.
Teaching experiment system platform of the present invention, provides the innovative operation experiments that 13 complexities are different, respectively: experiment one, rotation angle value experiments of measuring; Experiment two, length angle value experiments of measuring; Experiment three, height value experiments of measuring; Experiment four, inclined angle of object experiments of measuring; Experiment five, experiment porch latitude and longitude value experiments of measuring; Experiment six, Zig-Bee wireless network networking experiment; Experiment seven: GPRS wireless network networking experiment; Experiment eight: Internet network networking is tested; Experiment nine: electronic chart develop sequence; Experiment ten: experimental data building model and simulation develop sequence; Test 11: video software develop sequence; Test 12: the design and development of image recognition algorithm; Test 13: building and networking experiment of many experiment porchs.
Above-mentioned 13 innovative operation experiments can be divided into Four types.The first to the five experiment, belong to the infrastest of simple physical measurement amount, mainly offer towards undergraduate, student is made to carry out Long-distance Control by student experimenting end 8 pairs of experiment porch monitoring clients 5 and experiment porch 6, by Internet of things system operated from a distance sensor drive device, obtain the measured value of simple physical amount; Six to the eight experiment, belong to information communication network and build experiment, mainly offer towards undergraduate and research institute, make the software operation that student passes through experiment porch monitoring client 5, educational server 7 and student experimenting end 8, realize the setting of substantially building and be correlated with of three kinds of networks, realize " three bending moment " function on Internet of Things; Nine to the ten two experiment, belongs to the experiment of software development class, and main research oriented is raw to be offered, and make the secondary development that student passes through educational server 7, skilled this Internet of things system that uses also widens its attachment function; 13 experiment, belongs to Internet of things system and builds experiment, and main research oriented is raw to be offered, and makes the assembled and debugging that student passes through a whole set of Internet of things system hardware and software section, realizes building and using whole Internet of things system.
Internet of Things remote measurement and control teaching experiment system platform of the present invention, feature richness, have wide range of applications, method of operating is simple and easy, interconnection is strong, data communication and processing power superior, not only can greatly promote classroom efficiency and effect, student can also be made in experiment class teaching classroom to carry out more deep study and research to Theories and methods, thus progressively raising start the ability of practice, cultivation creativity consciousness and enhancing student to the exploration of a unknown difficult problem and solution interest.

Claims (8)

1. an Internet of Things remote measurement and control teaching experiment system platform, is characterized in that, comprising:
The experiment porch group be made up of several experiment porchs (6);
With described several experiment porchs (6) experiment porch monitoring client (5) one to one, described experiment porch monitoring client (5) is for obtaining the test figure of experiment porch (6), each experiment porch monitoring client (5) is the node of in Zig-Bee wireless network, realizes carrying out data access to remaining experiment porch monitoring client (5);
By the educational server (7) that GPRS wireless network communicates with described experiment porch monitoring client (5), educational server (7) regularly, incessantly obtains in real time and historical test data from each experiment porch monitoring client (5);
By the student experimenting end (8) that Internet cable network communicates with described educational server (7), described student experimenting end (8) is connected to a corresponding experiment porch (6) by educational server (7), on-the-spot or long-rangely carries out experimental implementation;
And,
By the teaching remote measurement and control end (9) that Internet cable network communicates with described educational server (7), described teaching remote measurement and control end (9) is all experiment porchs of monitoring (6) in real time, real-time and the historical test data in described educational server (7) is transferred in inquiry, initiatively or after receiving the singularity in experiment alerting signal that experiment porch monitoring client (5) sends carry out brake hard to corresponding experiment porch (6), going forward side by side works knows.
2. Internet of Things remote measurement and control teaching experiment system platform according to claim 1, it is characterized in that, the multiple sensors of the upper integrated belt remote control function of described experiment porch (6) and corresponding drive unit, student experimenting end (8) sends experiment control instruction to educational server (7), educational server (7) provides service response and experiment control instruction is forwarded to experiment porch monitoring client (5), thus realizes the control to multiple sensors and respective drive device.
3. Internet of Things remote measurement and control teaching experiment system platform according to claim 1, it is characterized in that, described experiment porch (6) adopts tower crane type structure, on platform top, GPS sensor (1) is installed, installation length sensor (2) in the middle part of platform platform arm, rotary sensor (3) is installed in platform platform arm rear end, installs inclination sensor (4) in the middle part of platform.
4. Internet of Things remote measurement and control teaching experiment system platform according to claim 3, it is characterized in that, real time dynamic model is set up in described experiment porch monitoring client (5), modeling analysis is carried out to the data of the various sensor drive devices of multiple experiment porch (6), when analysis result exceeds default regulating scope, carry out audio alert, described real time dynamic model is: experiment porch monitoring client (5) detects in real time and upgrades the kind of sensor and drive unit, quantity, the changing value of measured value and state value and above-mentioned four measuring amount, as the input quantity of this dynamic model, then require to process data based on different experiments, classification, calculate and merge, obtain the theoretical output quantity of this model, and output quantity carries out experiment rationality and safety analysis to experimental data and operational order accordingly, when experimental data deviation theory value is excessive or experimental implementation danger coefficient is excessive, carry out automatic alarm operation.
5. Internet of Things remote measurement and control teaching experiment system platform according to claim 1, it is characterized in that, described experiment porch monitoring client (5) sends log-on message to educational server (7), application is connected into educational server (7), educational server (7) adopts heartbeat polling mechanism, for all experiment porch monitoring clients (5) distribute independent IP automatically, and constantly obtain according to certain hour interval, the real-time experimental state of storage and checking experiment platform monitoring end (5) and experimental data, set up dynamic test system platform model and collect data, and by de-redundancy and the valid data after merging, be forwarded to student experimenting end (8), be stored in the Database Systems of SD card simultaneously and back up.
6. Internet of Things remote measurement and control teaching experiment system platform according to claim 1, is characterized in that, described experiment porch monitoring client (5) configuration monitoring probe, the application drawing picture of Real-time Obtaining experiment porch (6).
7. Internet of Things remote measurement and control teaching experiment system platform according to claim 1, it is characterized in that, obtained real-time and historical test data is uploaded to cloud platform and carries out long-range computing and data processing by described teaching remote measurement and control end (9), and many group experimental results are marked and compared, obtain analysis report.
8. Internet of Things remote measurement and control teaching experiment system platform according to claim 1, it is characterized in that, described educational server (7) to student experimenting end (8) and teaching remote measurement and control end (9) all control operations, be provided with different affairs priority and take priority transaction scheduling strategy, scheduling strategy is: the affairs priority that teaching remote measurement and control end (9) sends operation is higher, can obtain the priority processing power of server; The affairs priority that student experimenting end (8) sends operation is lower, can be interrupted by the transaction operation that priority is higher or cancel.
CN201410816674.9A 2014-12-24 2014-12-24 A kind of Internet of Things remote measurement and control teaching experiment system platform CN104537906B (en)

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