CN202033912U

CN202033912U - Multifunctional statistical device used in classroom

Info

Publication number: CN202033912U
Application number: CN2010206895741U
Authority: CN
Inventors: 张开生; 马文博; 高明星
Original assignee: Shaanxi University of Science and Technology
Current assignee: Shaanxi University of Science and Technology
Priority date: 2010-12-30
Filing date: 2010-12-30
Publication date: 2011-11-09
Anticipated expiration: 2020-12-30

Abstract

The utility model provides a multifunctional statistical device used in a classroom. The multifunctional statistical device includes a wireless transmission unit, a wireless reception unit, and an analysis and processing unit. The wireless transmission unit includes a power supply, a PT2262 coding chip which is connected with the power supply, and a transmission module which is connected with the PT2262 coding chip. The wireless reception unit includes a one-chip microcomputer AT89C2051, a PC and a PT 2272 coding chip which are connected with the one-chip microcomputer AT89C2051respectively, and a wireless reception module which is connected with the PT2262 coding chip. The multifunctional statistical device used in the classroom is simple in operation, practical in function, and excellent in effect, and can improve the teaching and learning efficiency. The multifunctional statistical device adopts a wireless device, thus having no need of the rewiring and keeping the original classroom layout.

Description

The multi-functional statistic device in a kind of classroom

Technical field

The utility model relates to a kind of teaching servicing unit, the multi-functional statistic device in particularly a kind of classroom.

Background technology

In the limited instructional blocks of time in classroom, in time obtain the grasp situation of student, and, add up fast and handle the data that the student reports situations to the content of courses, be the key that realizes teachers and students' interaction, guarantees quality of instruction.But present statistical work can't obtain statistics when problem proposes, promptly student's selection result is carried out promptly and accurately statistical treatment, is having a strong impact on the interaction effect between the teachers and students.

In view of above problem, be necessary to provide a kind of classroom that overcomes above-mentioned defective multi-functional statistic device in fact.

The utility model content

Technical problem to be solved in the utility model provides the multi-functional statistic device in a kind of classroom, makes the teacher in time obtain the grasp situation of student to the content of courses, strengthens classroom teachers and students' interaction effect.

For achieving the above object, the utility model provides a kind of classroom multi-functional statistic device, comprise wireless transmitting unit, radio receiving unit, and analysis and processing unit, described wireless transmitting unit comprises power supply, the PT2262 coding chip that links to each other with power supply and the transmitter module that links to each other with the PT2262 coding chip; Described radio receiving unit comprises single-chip microcomputer, the PC that links to each other with single-chip microcomputer respectively and PT2272 decoding chip, and the wireless receiving module that links to each other with the PT2272 decoding chip.

As most preferred embodiment of the present utility model, pin D0, D2, D1 and the D3 of described PT2262 coding chip is connected with the first, second, third and the 4th resistance respectively, and the other end of these four resistance is connected with the first, second, third and the 4th switch respectively; Described first resistance is through the 9th resistance eutral grounding, and described second resistance is through the 8th resistance eutral grounding, and described the 3rd resistance is through the 6th resistance eutral grounding, and described the 4th resistance is through the 5th resistance eutral grounding; Be connected with the 7th resistance between the pin OSC2 of described PT2262 coding chip and the OSC1;

As most preferred embodiment of the present utility model, be connected with first and second electric capacity that are connected in series between the pin XTAL1 of described single-chip microcomputer and the XTAL2, and with the first and second electric capacity parallel resistor X1; The pin RST of described single-chip microcomputer links to each other with power supply by the 3rd capacitor C 3 by resistance R 3 ground connection; Described single-chip microcomputer links to each other with PC with P3.1 by pin P3.0; Described single-chip microcomputer links to each other with the PT2272 decoding chip by pin P3.7, by resistance R 1 ground connection, is connected with resistance R 2 between the pin OSC2 of described PT2272 decoding chip and the OSC1 between the pin P3.7 of described single-chip microcomputer and the GND pin of PT2272 decoding chip.

Compared with prior art, the utility model classroom has the following advantages at least with multi-functional statistic device: the utility model device is simple to operate, function is practical, respond well, can promote the efficient of learning aid; Adopt wireless device, do not need rewiring, do not destroy original classroom general layout.

Description of drawings

Fig. 1 is the structured flowchart of the utility model classroom with multi-functional statistic device;

Fig. 2 is the circuit diagram of the utility model classroom with multi-functional statistic device wireless transmitting unit;

Fig. 3 is the circuit diagram of the utility model classroom with multi-functional statistic device radio receiving unit;

Fig. 4 is the synoptic diagram of examination pattern;

Fig. 5 is the synoptic diagram of enquirement pattern;

Fig. 6 is the synoptic diagram of voting pattern.

Embodiment

Specifically introduce the embodiment of the utility model classroom below in conjunction with accompanying drawing with multi-functional statistic device:

See also shown in Figure 1ly, the multi-functional statistic device of the utility model comprises wireless transmitting unit, radio receiving unit, and analysis and processing unit.

See also shown in Figure 2ly, described wireless transmitting unit comprises the power supply of 12V, the PT2262 coding chip that links to each other with power supply and the transmitter module that links to each other with the PT2262 coding chip.On the described transmitter module transmitting terminal is arranged, in order to the emission data; Pin D0, D2, D1 and the D3 of described PR2262 coding chip is connected with the first, second, third and the 4th resistance R 1, R2, R3, R4 respectively, and the other end of these four resistance is connected with the first, second, third and the 4th K switch 1, K2, K3, K4 respectively; Described first resistance R 1 is through the 9th resistance R 9 ground connection, and described second resistance R 2 is through the 8th resistance R 8 ground connection, and described the 3rd resistance R 3 is through the 6th resistance R 6 ground connection, and described the 4th resistance R 4 is through the 5th resistance R 5 ground connection; Be connected with the 7th resistance R 7 between the pin OSC2 of described PT2262 coding chip and the OSC1.

See also shown in Figure 3ly, described radio receiving unit comprises single chip computer AT 89C2051, the PC that links to each other with single chip computer AT 89C2051 respectively and PT2272 decoding chip, and the wireless receiving module that links to each other with the PT2272 decoding chip.Be connected with first and second capacitor C 1, the C2 that are connected in series between the pin XTAL1 of described single chip computer AT 89C2051 and the XTAL2, and with the first and second electric capacity parallel resistor X1; The pin RST of described single chip computer AT 89C2051 links to each other with power supply by the 3rd capacitor C 3 by resistance R 3 ground connection; Described single chip computer AT 89C2051 links to each other with PC with P3.1 by pin P3.0; Described single chip computer AT 89C2051 links to each other with the PT2272 decoding chip by pin P3.7, by resistance R 1 ground connection, be connected with resistance R 2 between the pin OSC2 of described PT2272 decoding chip and the OSC1 between the pin P3.7 of described single chip computer AT 89C2051 and the GND pin of PT2272 decoding chip.

Analysis and processing unit comprises PC, projector, and screen.

During use, the student is reflected the selection of oneself by the closure of controlling first to fourth switch, launch by the transmitting terminal of wireless transmitting unit then, be sent to single-chip microcomputer receive student's data when radio receiving unit after, be sent to PC through single-chip microcomputer then.

Analysis and processing unit of the present utility model switches to corresponding work mode by user's control, PC is under the support of related software, the signal that is sent by each transmitter unit that receiving element is received is added up, is analyzed, be converted into video datas such as the form that characterizes the student and select situation, histogram, cake chart, control projector at last video data is shown on projecting apparatus screen.

Mode of operation comprises the pattern of racing to be the first to answer a question, statistical model, examination pattern, voting pattern and enquirement pattern.

The described pattern of racing to be the first to answer a question refers to: show on the screen and race to be the first to answer a question exercise question (multiple-choice question), student's button makes a choice, by wireless transmitting unit the data transmission of its selection is gone out then, radio receiving unit receives only the student's that first choosing checks on one's answers position (the corresponding seat number of each wireless launcher).

Described voting pattern refers to: show candidate people's name and corresponding option on the screen, student's button makes a choice, by wireless transmitting unit the data transmission of its selection is gone out then, radio receiving unit receives each candidate's poll (number of times that different options is selected), but does not show voter's seat number.So, can guarantee whole election process justice, quick, secret.

Described examination pattern refers to: roll display exam question (multiple-choice question) on the screen, student's button makes a choice, by wireless transmitting unit the data transmission of its selection is gone out then, radio receiving unit receives the data of making correct selection, and shows the student's who makes correct selection number on screen.Teacher can grasp the actual conditions of this knowledge point according to the student, adjusts the teaching content.

Described enquirement pattern refers to: the student as has a question in teacher's teaching process, and button is selected.Show the student's that will put question to the position and the time of enquirement on the screen.So neither interrupt the thinking that teacher teaches, teacher also can understand student's the situation of listening to the teacher, and in time gives student's answering questions.

Described statistical model refers to: after radio receiving unit is received the control signal that all wireless transmitting unit send, automatically switch, the control screen demonstrates corresponding statistical treatment result.

Principle of work of the present utility model is as follows:

1, wireless transmitting unit is battery-powered, also can become+the 12V DC voltage through mu balanced circuit by 220V is carried out voltage transformation, supplies with radio transmitter and uses;

2, radio receiving unit receives the signal that is sent by each transmitter unit, and transfers to single-chip microcomputer, transfers to PC by interface circuit through data line then.

3, the analysis and processing unit receiving trap counts corresponding results, controls projector at last data are shown on projecting apparatus screen.

4, the utility model device is that pilosity is penetrated, the single reception, therefore needs a plurality of emitting heads, and that frequency will be with receiving element is consistent.The corresponding seat number of each wireless transmitting unit.

The above only is a kind of embodiment of the present utility model, it or not whole or unique embodiment, the conversion of any equivalence that those of ordinary skills take technical solutions of the utility model by reading the utility model instructions is claim of the present utility model and contains.

Claims

1. multi-functional statistic device in classroom, it is characterized in that: comprise wireless transmitting unit, radio receiving unit, and analysis and processing unit, described wireless transmitting unit comprises power supply, the PT2262 coding chip that links to each other with power supply and the transmitter module that links to each other with the PT2262 coding chip; Described radio receiving unit comprises single chip computer AT 89C2051, the PC that links to each other with single chip computer AT 89C2051 respectively and PT2272 decoding chip, and the wireless receiving module that links to each other with the PT2272 decoding chip.

2. the multi-functional statistic device in classroom as claimed in claim 1, it is characterized in that: pin D0, D2, D1 and the D3 of described PT2262 coding chip is connected with the first, second, third and the 4th resistance (R1, R2, R3, R4) respectively, and the other end of these four resistance is connected with the first, second, third and the 4th switch (K1, K2, K3, K4) respectively; Described first resistance (R1) is through the 9th resistance (R9) ground connection, and described second resistance (R2) is through the 8th resistance (R8) ground connection, and described the 3rd resistance (R3) is through the 6th resistance (R6) ground connection, and described the 4th resistance (R4) is through the 5th resistance (R5) ground connection; Be connected with the 7th resistance (R7) between the pin OSC2 of described PT2262 coding chip and the OSC1.

3. the multi-functional statistic device in classroom as claimed in claim 2, it is characterized in that: be connected with first and second electric capacity (C1, C2) that are connected in series between the pin XTAL1 of described single chip computer AT 89C2051 and the XTAL2, and with the first and second electric capacity parallel resistor X1; The pin RST of described single chip computer AT 89C2051 links to each other with power supply by the 3rd capacitor C 3 by resistance R 3 ground connection; Described single chip computer AT 89C2051 links to each other with PC with P3.1 by pin P3.0; Described single chip computer AT 89C2051 links to each other with the PT2272 decoding chip by pin P3.7, by resistance R 1 ground connection, be connected with resistance R 2 between the pin OSC2 of described PT2272 decoding chip and the OSC1 between the pin P3.7 of described single chip computer AT 89C2051 and the GND pin of PT2272 decoding chip.