CN104317875A - Engineering graphics course test paper production system - Google Patents
Engineering graphics course test paper production system Download PDFInfo
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- CN104317875A CN104317875A CN201410560361.1A CN201410560361A CN104317875A CN 104317875 A CN104317875 A CN 104317875A CN 201410560361 A CN201410560361 A CN 201410560361A CN 104317875 A CN104317875 A CN 104317875A
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- area network
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/951—Indexing; Web crawling techniques
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B7/00—Electrically-operated teaching apparatus or devices working with questions and answers
Abstract
The invention provides an engineering graphics course test paper production system. The engineering graphics course test paper production system comprises a server, a wide/local area network, a concentrator, a switchboard and computer terminals, a computer command system and an engineering graphics test question bank are stored in the server, the server is connected with the wide/local area network via the concentrator and the switchboard, and the computer terminals access the server via the wide/local area network. The engineering graphics course test paper production system can solve the problem that the existing automatic test paper production technology cannot be applied to the engineering graphics course, automatic test paper production can be realized, test paper production speed can be increased, offsite test paper production can be realized, and uniformity in forms and difficulty of the test paper can be more fairly and reasonably mastered.
Description
Technical field
The present invention relates to Course of Engineering Graphics papers generation system, particularly a kind of network-type, robotization, fast engineering science course papers generation system.
Background technology
At present, the papers generation system of domestic realization can realize automatic generating, and mainly Hands-On test, does not need paper roll, and its topic type is the character property exercise question such as multiple-choice question (single choice or multiselect), True-False mainly.There are standalone version and the network edition.As Computer Basic Knowledge papers generation system, English paper papers generation system etc.
Prior art has very large difficulty for the automatic volume group realizing Course of Engineering Graphics.The examination paper of Course of Engineering Graphics examination are substantially based on mapping, little pure words topic, because the scale of construction of figure itself is larger, the storage of examination question, calls and insert paper etc. and be difficult to automatically be completed by computing machine, also not retrieving at present can the Course of Engineering Graphics papers generation system of the volume of realization group automatically.
General employing teacher organizes volume by hand, method is the examination question figure of the prior some that prestores in a computer, be called exam pool, one inscribe and ransack in teacher to exam pool during group volume, whether artificial judgment is suitable, until the exercise question finding quantity enough, or oneself is drawn with mapping software, then WORD document or other mapping software is inserted from being about to figure, as in AutoCAD environment, last printout.Its shortcoming is: the form possibility disunity of paper, and the assurance of complexity varies with each individual, and it is fair and reasonable to accomplish; Group volume expends time in longer; Strange land group volume cannot be realized.Because exam pool must be pre-installed in a local computer, meanwhile, general test item bank is all based on a kind of mapping software, as AutoCAD etc., if strange land machine is unkitted this software, then cannot realize display, printing makes the test.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of Course of Engineering Graphics papers generation system, utilize this papers generation system can solve existing automatic volume group technology and cannot be applied in problem in Course of Engineering Graphics, realize automatic volume group, raising group volume speed, while, can strange land group roll up, make paper unity of form, the assurance of difficulty is fair and reasonable.
A kind of Course of Engineering Graphics papers generation system provided by the invention, comprise: server, wide area network or LAN (Local Area Network), hub, switch and terminal, wherein: the repertoire of computer and Engineering Drawing test item bank store in the server, server is connected with wide area network or LAN (Local Area Network) with switch by hub, and terminal is by wide area network or LAN (Local Area Network) access services device.
Described test item bank data structure is made up of test question files name, knowledge point, frequency of usage number, degree-of-difficulty factor and examination question genre modulus.Test question files adopts graphic file formats, and is separated placement with test item bank, is linked to examination question graphic file by test question files name.
Described papers generation system adopts the method for select question randomly, the frequency of usage of examination question is combined the selected topic simultaneously.
Beneficial effect of the present invention is: papers generation system provided by the invention, can realize the automatic volume group of Engineering Drawing paper, and increase substantially group volume speed, the group originally the needing about 30 minutes volume time, within dropping to 3 minutes.Can accomplish that Degree of difficulty of test paper is unified simultaneously, and can strange land group roll up, not need the restriction being subject to office or region, as long as the person of making the test has a computing machine that can surf the Net just can organize volume.If there is printer directly to type a test paper, first paper can be preserved into word file if do not have, then take other local printing to.
Accompanying drawing explanation
Fig. 1 is the network structure of papers generation system of the present invention;
Fig. 2 is the item database structural drawing of papers generation system of the present invention;
Fig. 3 is the automatic volume group process flow diagram of papers generation system of the present invention;
Fig. 4 is the process flow diagram that papers generation system of the present invention determines A, category-B topic number;
Fig. 5 is the automatic selected topic process flow diagram of papers generation system of the present invention.
Embodiment
Hereafter will describe embodiments of the invention in detail by reference to the accompanying drawings.It should be noted that the combination of technical characteristic or the technical characteristic described in following embodiment should not be considered to isolated, they mutually can be combined and be combined with each other thus reach better technique effect.
A kind of Course of Engineering Graphics papers generation system provided by the invention, comprise: server, wide area network or LAN (Local Area Network), hub, switch and terminal, wherein: the repertoire of computer and Engineering Drawing test item bank store in the server, server is connected with wide area network or LAN (Local Area Network) with switch by hub, and terminal is by wide area network or LAN (Local Area Network) access services device.
Test item bank data structure is made up of test question files name, knowledge point, frequency of usage number, degree-of-difficulty factor and examination question genre modulus.Test question files adopts graphic file formats, and is separated placement with test item bank, is linked to examination question graphic file by test question files name.
Papers generation system adopts the method for select question randomly, the frequency of usage of examination question is combined the selected topic simultaneously.
As shown in Figure 1, Course of Engineering Graphics papers generation system is made up of hardware and software, and hardware relates to server, regional network or wide area district and peripheral hardware as the equipment such as hub, switch etc., terminal, and these equipment are known device.Software section relates to the known softwares such as APACHE server software, MYSQL database software, PHP programming language, and the present invention exploitation the repertoire of computer and Engineering Drawing test item bank (containing database and examination question graphic file), they are installed in server hard disc.
As shown in Figure 2, test item bank data structure is defined.The structure of test item bank solves the storage mode of examination question, reduces the data volume of database, improves the arithmetic speed of system.This structure is made up of test question files name, knowledge point, frequency of usage number, degree-of-difficulty factor, examination question genre modulus.Its test question files name is made up of coding, and its implication is type name, difficulty, sequence number, additional identification.The coding of test question files name associates with examination question map file, solve examination question figure database storage, call problem.Knowledge point is also made up of coding, is the character string of the coding composition of knowledge involved by examination question.Question difficulty coefficient is divided into A, B two kinds of difficulty.
Degree of difficulty of test paper is relevant with the difficulty of examination question number and examination question itself, and definition Degree of difficulty of test paper coefficient is determined by following formulae discovery:
Number inscribed substantially by paper is the topic number that moderate student can complete general difficulty exercise question within the test time of regulation, general 6 ~ 7 topics.If set Degree of difficulty of test paper coefficient as e, number inscribed substantially by paper is T, then formula can be written as 0.1A+0.2B=eT again.Degree of difficulty of test paper coefficient value scope is 0.1 ~ 0.5, and through testing experiment, the rate of failing of basic corresponding student is 10% ~ 50%.
As shown in Figure 3, the parameter that the initial input of automatic volume group is necessary, has Degree of difficulty of test paper coefficient, examination question type, every type examination question number.After degree-of-difficulty factor is determined, system can calculate suitable examination question number range automatically, and provides prompting, if exceed this scope, then the degree-of-difficulty factor of paper can change.The defining method of examination question number range is: when category-A topic number is 0, category-B topic number=Degree of difficulty of test paper coefficient × paper inscribes number/0.2 substantially, obtains minimum examination question number Tmin; When category-B topic number is 0, category-A topic number=Degree of difficulty of test paper coefficient × paper inscribes number/0.1 substantially, obtains maximum examination question number Tmax.When examination question number is within the scope of this, the combination of being inscribed with category-B by category-A topic, can meet the requirement of degree-of-difficulty factor.A, category-B topic number can be selected a topic after determining automatically, and the selected topic is according to random number and low frequency topic priority principle automatically, then defines each topic mark and can carry out preview, printing and preservation paper.
If Fig. 4 is the number method determining that category-A topic is inscribed with category-B, according to the examination question number scope determined, input examination question number T1, judge whether that being greater than paper inscribes number T substantially, if be greater than beyond maximum examination question number, then the final examination question of paper is all category-A exercise question; If be not more than, then calculate category-B exercise question number as shown in the figure, category-A exercise question number=T1-B class exercise question number.
Fig. 5 is flow process of automatically selecting a topic.Native system adopts the method for the random number selected topic, and simultaneously by incorporated for the frequency of usage of examination question, the exercise question of the low frequency is preferentially selected, and to avoid when automatically selecting exercise question, the selected number of times of some exercise question is too much, causes different paper examination question to repeat.Its principle realized is, according to examination question type string L in A, category-B difficulty topic number and paper, obtains examination question type in paper.First get the topic of category-A difficulty.The code of a type is taken out again in order from paper type character string.Judge whether the exercise question of the type has been got full, if get full, then directly carry out judging whether type string L terminates.If do not get full, then take out such topic type required topic number.Then produce random number, scope is 1 ~ 10.In test item bank, the type exercise question is by frequency number ascending sort.From test item bank, take out exercise question successively from front to back again, show as examination question name character string.Then judge whether examination question type string terminates again, if terminate, then directly choose category-B difficulty exercise question; If do not terminate, then return and continue to take out from test item bank needed for the type topic type to inscribe number.The topic of getting category-B difficulty is the same with the topic step of getting category-A difficulty.All selected exercise questions, frequency number adds one, and frequency number initial value is zero, and when frequency number is greater than a certain specified value, frequency number reverts to zero.
Although give some embodiments of the present invention, it will be understood by those of skill in the art that without departing from the spirit of the invention herein, can change embodiment herein.Above-described embodiment is exemplary, should using embodiment herein as the restriction of interest field of the present invention.
Claims (3)
1. a Course of Engineering Graphics papers generation system, comprise: server, wide area network or LAN (Local Area Network), hub, switch and terminal, it is characterized in that, the repertoire of computer and Engineering Drawing test item bank store in the server, server is connected with wide area network or LAN (Local Area Network) with switch by hub, and terminal is by wide area network or LAN (Local Area Network) access services device.
2. a kind of Course of Engineering Graphics papers generation system according to claim 1, it is characterized in that, described test item bank data structure is made up of test question files name, knowledge point, frequency of usage number, degree-of-difficulty factor and examination question genre modulus, test question files adopts graphic file formats to be separated placement with test item bank, is linked to examination question graphic file by test question files name.
3. a kind of Course of Engineering Graphics papers generation system according to claim 1, is characterized in that, described papers generation system adopts the method for select question randomly, the frequency of usage of examination question is combined the selected topic simultaneously.
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| CN201410560361.1A CN104317875A (en) | 2014-10-20 | 2014-10-20 | Engineering graphics course test paper production system |
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| CN201410560361.1A CN104317875A (en) | 2014-10-20 | 2014-10-20 | Engineering graphics course test paper production system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107357909A (en) * | 2017-07-17 | 2017-11-17 | 重庆邮电大学 | Efficient more knapsack container papers generation systems and its group volume method |
| CN110533974A (en) * | 2018-05-24 | 2019-12-03 | 中国移动通信集团有限公司 | A kind of intelligent Auto-generating Test Paper method, system and computer readable storage medium |
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