CN203465868U - Queen problem demonstration instrument - Google Patents
Queen problem demonstration instrument Download PDFInfo
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- CN203465868U CN203465868U CN201320607441.9U CN201320607441U CN203465868U CN 203465868 U CN203465868 U CN 203465868U CN 201320607441 U CN201320607441 U CN 201320607441U CN 203465868 U CN203465868 U CN 203465868U
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Abstract
The utility model provides a queen problem demonstration instrument so as to solve the problem that teaching demonstration effect is greatly influenced because there is rarely a good demonstration instrument for queen problem demonstration in an existing recursive algorithm teaching process in elementary and secondary schools. The queen problem demonstration instrument comprises a demonstration disc. The demonstration disc is provided with 8*8 buttons with indication lamps. The buttons are connected with a control panel which is arranged on the demonstration disc. The control panel is connected with a power source. The queen problem demonstration instrument is simple in structure and convenient to operate; the answer to the queen problem can be rapidly and visually demonstrated through the on and off, which is achieved by operating the buttons, of the indication lamps on the buttons, and the demonstration effect is obvious; and recursive algorithm teaching demonstration in elementary and secondary schools is done favorably.
Description
Technical field
The utility model relates to teaching aid technical field, specifically, relates to a kind of queens Problem demonstrator.
Background technology
Eight queens problem, is an ancient and famous problem, is the typical example of recursive algorithm.This problem is that the famous mathematician Gauss of 19th-century proposes for 1850: on the chess of 8X8 lattice, put eight queenes, it can not be run foul of each other, be that any two queenes can not, on same a line, same row or same oblique line, ask how many kinds of arrangement.Gauss thinks 76 kinds of schemes, 1854 on the Chinese chess magazine of Berlin different authors delivered 40 kinds of different solutions, had afterwards people to solve 92 kinds of results by the method for graph theory.
Except eight queens problem, also have five queens problem, five queenes of placement in the grid of 8 * 8 chessboard, make these five queenes can control whole chessboard, and the position of any one on chessboard is put chess piece and can be eaten up.According to the rule of chess, queen can horizontally eat, erects and eat, tiltedly eat; Certain all queenes do not kill each other, and namely can not accuse each other.
In the teaching of middle and primary schools' recursive algorithm, various queens Problems are all classical examples, in order to allow the better learning recurrence algorithm of student, be preferably by a demonstrator and carry out the demonstration of queens Problem, and rarely have now a kind of demonstrator that can demonstrate for queens Problem preferably, greatly hinder the demonstration effect of teaching.
Utility model content
The utility model, in order to solve in the process of existing middle and primary schools recursive algorithm teaching, owing to rarely having a kind of demonstrator that can demonstrate for queens Problem preferably, hinder the problem of the demonstration effect of teaching greatly, and a kind of queens Problem demonstrator is provided.
The technical matters of the required solution of the utility model, can be achieved through the following technical solutions:
A queens Problem demonstrator, is characterized in that, comprising: demonstration board, and described demonstration board is provided with 8 and takes advantage of 8 with the button of pilot lamp, and described button connection is arranged on the control panel in demonstration board, and described control panel connects power supply.
In the utility model, described demonstration board is provided with 8 and takes advantage of 8 chessboard, and described 8 take advantage of 8 buttons with pilot lamp to be separately positioned in each chess lattice of described chessboard.
In the utility model, described button is the button with LED light, with saves energy.
In the utility model, described power supply is the battery being arranged in demonstration board.
In the utility model, described power supply is for connecting the external power supply of control panel.
In the utility model, on described demonstration board, be also provided with the gauge tap being connected between described power supply and control panel.
In the utility model, described demonstration board is arranged on base.
In the utility model, be also provided with supporting seat between described demonstration board and base, described demonstration board is arranged on supporting seat, so that the button on operation demonstration board.
Described demonstration board is horizontal by slant setting, and with the feel of lifting operation button, the angle of described demonstration board and surface level is 30 degree-60 degree.
Queens Problem demonstrator of the present utility model, structure is simplified, easy and simple to handle, by action button, realize the bright of pilot lamp on button and extinguish, can be fast, intuitively the answer of queens Problem is demonstrated, and demonstration successful, is conducive to the carrying out of middle and primary schools' recursive algorithm teaching demonstration greatly.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model.
Fig. 1 is structural representation of the present utility model.
Embodiment
In order to make technological means of the present utility model, creation characteristic, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Purport of the present utility model is, by in existing middle and primary schools recursive algorithm learning process, analysis to classical example queens Problem demonstration demand, find now owing to rarely having a kind of demonstrator that can demonstrate for queens Problem preferably, the problem that has greatly hindered the demonstration effect of teaching, provides a kind of queens Problem demonstrator to address the above problem by the utility model.
Referring to Fig. 1, queens Problem demonstrator of the present utility model, comprise demonstration board 1, demonstration board 1 is the main part of whole demonstrator, in order more intuitively to show that queens Problem derives from chess, on demonstration board 1, be preferably and arrange 8 and take advantage of 8 chessboard (present embodiment is illustrated), as everyone knows, chessboard takes advantage of the chess lattice at 8 black and white intervals to form by 8, a button 2 is set in each chess lattice, so, button 2 is to be also 8 settings of taking advantage of 8 mode to carry out, a pilot lamp (not illustrated) is all set on each button 2, be preferably employing LED light.Like this, when pressing one of them button 2, make the LED light on it change bright state, be illustrated in this button 2, in the chess lattice at place, placed a queen, if the pilot lamp on the button 2 in a certain chess lattice, in extinguishing state, represents in these chess lattice without chess piece.By above-mentioned mode, make no matter to demonstrate several queens Problems, can be fast, easily by bright and extinguish the LED light on button 2, the answer of queens Problem is demonstrated, and demonstration successful.
Certainly, in order to realize the control to each button 2, be provided with control panel (not illustrated) in demonstration board 1, each button 2 all connects control panel, and control panel is connected to the power supply (not illustrated) of its power supply again.For power supply, can be arranged on the battery in demonstration board 1, can be also the external power supply that connects control panel, specifically adopt which kind of mode, choose according to actual needs.
In the utility model, for the ease of the power supply of demonstrator being carried out to integral body, control, be also provided with gauge tap 3 on demonstration board 1, gauge tap 3 is connected between power supply and control panel.
In addition, for the ease of demonstrator is operated, the utility model is also provided with base 4, is provided with supporting seat 5 on base 4, and demonstration board 1 is arranged on supporting seat 5 again.In present embodiment, demonstration board 1 is horizontal by slant setting, and with the feel of lifting operation button 2, the angle of demonstration board 1 and surface level is preferably and is 30 degree-60 degree.
Queens Problem demonstrator of the present utility model, structure is simplified, easy and simple to handle, by action button, realize the bright of pilot lamp on button and extinguish, can be fast, intuitively the answer of queens Problem is demonstrated, and demonstration successful, is conducive to the carrying out of middle and primary schools' recursive algorithm teaching demonstration greatly.
Below only with regard to the utility model preferred embodiment, be described, but can not be interpreted as it is limitations on claims.The utility model is not only confined to above embodiment, and its concrete structure allows to change.In a word, all various variations of doing in the protection domain of the utility model independent claims are all in protection domain of the present utility model.
Claims (10)
1. queens Problem demonstrator, is characterized in that, comprising: demonstration board, and described demonstration board is provided with 8 and takes advantage of 8 with the button of pilot lamp, and described button connection is arranged on the control panel in demonstration board, and described control panel connects power supply.
2. queens Problem demonstrator according to claim 1, is characterized in that: described demonstration board is provided with 8 and takes advantage of 8 chessboard, and described 8 take advantage of 8 buttons with pilot lamp to be separately positioned in each chess lattice of described chessboard.
3. queens Problem demonstrator according to claim 1, is characterized in that: described button is the button with LED light.
4. queens Problem demonstrator according to claim 1, is characterized in that: described power supply is the battery being arranged in demonstration board.
5. queens Problem demonstrator according to claim 1, is characterized in that: described power supply is for connecting the external power supply of control panel.
6. queens Problem demonstrator according to claim 1, is characterized in that: on described demonstration board, be also provided with the gauge tap being connected between described power supply and control panel.
7. queens Problem demonstrator according to claim 1, is characterized in that: described demonstration board is arranged on base.
8. queens Problem demonstrator according to claim 7, is characterized in that: between described demonstration board and base, be also provided with supporting seat, described demonstration board is arranged on supporting seat.
9. queens Problem demonstrator according to claim 8, is characterized in that: described demonstration board is horizontal by slant setting.
10. queens Problem demonstrator according to claim 9, is characterized in that: the angle of described demonstration board and surface level is 30 degree-60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320607441.9U CN203465868U (en) | 2013-09-30 | 2013-09-30 | Queen problem demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320607441.9U CN203465868U (en) | 2013-09-30 | 2013-09-30 | Queen problem demonstration instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203465868U true CN203465868U (en) | 2014-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320607441.9U Expired - Fee Related CN203465868U (en) | 2013-09-30 | 2013-09-30 | Queen problem demonstration instrument |
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| Country | Link |
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| CN (1) | CN203465868U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107067881A (en) * | 2017-03-10 | 2017-08-18 | 鲁东大学 | A kind of evolutionary operator teaching aid |
-
2013
- 2013-09-30 CN CN201320607441.9U patent/CN203465868U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107067881A (en) * | 2017-03-10 | 2017-08-18 | 鲁东大学 | A kind of evolutionary operator teaching aid |
| CN107067881B (en) * | 2017-03-10 | 2019-05-14 | 鲁东大学 | A kind of evolutionary operator teaching aid |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20160930 |