CN2264393Y

CN2264393Y - Student's mathematics learning device

Info

Publication number: CN2264393Y
Application number: CN 96218260
Authority: CN
Inventors: 肖建勋
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-08-28
Filing date: 1996-08-28
Publication date: 1997-10-08
Anticipated expiration: 2006-08-28

Abstract

The utility model relates to an electronic calculational device, particularly a digital study calculational device which is a mathematic study device for students. The utility model is characterized in that the mathematic study device for students is formed by connecting input keys, an input device, a central control processor, an output device, a display and a power supply, the power supply is used for providing electric energy towards all devices, and the central control processor is used for respectively controlling each device except the power supply. The input keys are connected with the central control processor through the input interface of the input device. The central control processor is connected with the display through the output interface of the output device. The aim of the utility model is to provide the mathematic study device for students with the advantages of low cost, small size and portability.

Description

Student's mathematical learning equipment

The utility model relates to a kind of computing electronics, relates in particular to a kind of mathematical studying calculation element.

Addition subtraction multiplication and division is the basis of learning mathematics, is one of main task of primary school math teaching, and how grasping arithmetic in a down-to-earth manner is the problem that numerous students, teacher and the head of a family seek for a long time.

Mathematical studying gets up more uninteresting, especially for the pupil, and the pretty good child of some original talent, because mathematics is lacked interest, mathematical computations does not always pass a test, thereby has influence on the study of the follow-up course of mathematics, even has influence on the study of later physics, chemistry, in addition, the head of a family also will pay very big energy in order to teach child's learning mathematics, declares topic etc. as set a question, help child to child, expend energy on is many as a result, and it is little also to produce effects sometimes.

Can be the used mathematical studying aid of pupil on the market now and be mainly computing machine, learning machine etc., though it has the strong advantage of function, cost an arm and a leg, volume greatly, not portable, use the eyesight that also can influence the user simultaneously over a long time.

The purpose of this utility model be to provide a kind of with low cost, volume is little, student's mathematical learning equipment of being easy to carry about with one.

The purpose of this utility model is achieved through the following technical solutions: a kind of student's mathematical learning equipment is characterized in: 1) connected and composed by input button, input unit, central control processor, follower, display and power supply; 2) power supply provides electric energy to whole devices; 3) central control processor is controlled each device except that power supply respectively, and the input button link to each other with central control processor by input unit, central control processor links to each other with display by follower.

The principle of work of student's mathematical learning equipment of the present utility model is: but user's chosen in advance parameters, and these parameters comprise: 1) compute mode is selected parameter (can choose wantonly add, subtract, in the multiplication and division one or more); 2) numerical digit that participates in computing two numbers is selected parameter (for example can select an addend in additive operation is three figure places, and another addend is that double figures is carried out computing); 3) the speed speed is selected parameter.Behind the parameter setting, just can count, machine is selected the selected of parameter and self-timing according to the speed speed, random proposition on request, in limiting time, require the user to import answer, time is once to going out problem down, the topic number is just judged the correctness of each topic and is provided mark after reaching certain quantity (for example 20 roads), if wrong topic then shows wrong topic successively, require the user to provide answer again, if it is wrong that answer remains, then continue to show wrong topic, till the answer that provides is correct, and then enter the state of setting a question.After if machine is set a question, the user presses enter key, and then machine goes out following problem immediately and no longer waits for the input answer, does not also declare topic.

By following description of carrying out for embodiment of the present utility model with reference to accompanying drawing, above feature of the present utility model and advantage will be more apparent.

Fig. 1 is a block diagram of the present utility model

Fig. 2 is an outside drawing of the present utility model

Fig. 3 is the workflow diagram of explanation the utility model principle of work

Fig. 4 is the circuit diagram of the utility model embodiment one

Fig. 5 is the circuit diagram of the utility model embodiment two

Fig. 6 is the circuit diagram of the utility model embodiment three

Embodiment 1, as Fig. 2 and shown in Figure 4;

Embodiment one of the present utility model realizes by adopting single chip circuit and light-emitting diode display, wherein import the form that button 1 and display 5 adopt as shown in Figure 2, have power supply on the input button 1, numeral (0-9), compute mode (+,-, *, ÷), remainder, carriage return, option keys, display 5 is a light-emitting diode display, have the digital operation position on display 5 screen boards, exercise/checking computations, numerical digit, compute mode (+,-, *, ÷), speed, wrong topic is reformed and the mark function shows symbol, input unit 2 is 8155 cake cores, central control processor 3 is 8031 types or 8051 or 8751 cake cores, and while 8155 cake core chips link to each other with 7407 cake cores and constitute follower 4.Keyboard 1 links to each other with input unit 2, and input unit 2 and follower 4 link to each other with central control processor 3, and follower 4 links to each other with display 5.

Embodiment 2: as Fig. 2 and shown in Figure 5;

Embodiment two of the present utility model realizes by adopting single chip circuit and LCD display, wherein import the form that button 1 and display 5 adopt as shown in Figure 2, input have on the button 1 power supply, numeral (0-9), compute mode (+,-, *, ÷), remainder, carriage return and option keys, display 5 is a LCD display, have the digital operation position on display 5 screen boards and exercise test/calculation, numerical digit, compute mode (+,-, *, ÷), speed, wrong topic is reformed and the mark function shows symbol.Input unit 2 and central control processor 3 adopts 8031 types or 8051 types or 8751 cake cores, and follower 4 is 74HC165 cake core and the 74HC161 cake core formation that links to each other with plural 74HC595 cake core.Enter key 1 links to each other with central control processor 3 by input unit 2, and central control processor 3 links to each other with display 5 by follower 4.

Embodiment 3: as Fig. 2 and shown in Figure 6;

Embodiment three of the present utility model: realize by adopting single chip circuit and LED or LCD display, wherein import the form that button 1 and display 5 adopt as shown in Figure 2, input have on the button 1 power supply, numeral (0-9), compute mode (+,-, *, ÷), remainder, carriage return and option keys, display 5 is LED or LCD display, have the digital operation position on display 5 screen boards and exercise test/calculation, numerical digit, compute mode (+,-, *, ÷), speed, wrong topic is reformed and the mark function shows symbol.Input interface, central control processor, output interface are integrated on the circuit board.

Claims

1, a kind of student's mathematical learning equipment is characterized in that:

1) connects and composes by input button, input unit, central control processor, follower, display and power supply;

2) power supply provides electric energy to whole devices;

3) central control processor is controlled each device except that power supply respectively, and the input interface of input button by input unit link to each other with central control processor, and the output interface that central control processor passes through follower links to each other with display.

2, student's mathematical learning equipment according to claim 1 is characterized in that: have power supply, numeral, compute mode, remainder, carriage return and option keys on the input keyboard.

3, student's mathematical learning equipment according to claim 1 is characterized in that: input interface adopts 8155 cake cores or utilizes the inner input interface of 8031 cake cores.

4, student's mathematical learning equipment according to claim 1 is characterized in that: central control processor adopts 8031 types or 8051 types or 8751 cake cores.

5, student's mathematical learning equipment according to claim 1 is characterized in that: output interface can adopt the 8155 types formation that links to each other with 7407 cake cores.

6, student's mathematical learning equipment according to claim 1 is characterized in that: output interface can adopt 74HC165 cake core and the 74HC161 cake core formation that links to each other with two above 74HC595 cake cores.

7, student's mathematical learning equipment according to claim 1, it is characterized in that: display can adopt light-emitting diode display or LCD display.

8, according to claim 1 or 7 described student's mathematical learning equipments, it is characterized in that: the display screen strip have digital operation position, exercise/checking computations, numerical digit, compute mode (+,-, *, ÷), speed, wrong topic is reformed and the mark function shows symbol.

9, student's mathematical learning equipment according to claim 1 is characterized in that: input interface, central control processor, output interface can be integrated on the circuit board.