CN201397585Y - Statistic device for probability events - Google Patents
Statistic device for probability events Download PDFInfo
- Publication number
- CN201397585Y CN201397585Y CN2009200723804U CN200920072380U CN201397585Y CN 201397585 Y CN201397585 Y CN 201397585Y CN 2009200723804 U CN2009200723804 U CN 2009200723804U CN 200920072380 U CN200920072380 U CN 200920072380U CN 201397585 Y CN201397585 Y CN 201397585Y
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- sensor
- probability
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- fens
- results
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Abstract
The utility model relates to a statistic device for probability events. The device is provided with a base, a control part and a display part, wherein, the control part comprises a control switch, a sensor, a computer controller for generating probability results, and a digital display circuit; the display part adopts a large-screen display; the base comprises a power supply and a control mechanism; the front part of the base is worked as a sensing area; a palm-shaped cutout part is arranged on the sensing area; a protection baffle is arranged below the cutout part; and the sensor is arrangedon the inner surface of the protection baffle. The statistic device is characterized in that the sensor adopts a fingerprint sensor which receives the palm signals of participators, and the participator number and the participation results are calculated out by the control part and displayed on the large screen through straight square patterns, so as to inform the participators of the probabilities of randomly occurred eleven results and leads the participators to further obtain the knowledge on the aspects of probability, statistics, normal distribution, and the like.
Description
Technical field
The utility model relates to the statistic device of probability event in the art of mathematics.
Background technology
When school imparts knowledge to students to the probability content of art of mathematics at present, the elaboration of only deriving theoretically, the student often is not easy to understand.
Summary of the invention
The purpose of this utility model is in order to solve in the existing teaching the not wield problem of the notion of probability, and a kind of statistic device of probability event is provided, and can carry out the ocular demonstration operation.
The technical solution of the utility model is: a kind of probability event statistic device, have support, control section and display part, described control section comprises that gauge tap, sensor, produce the computer control and the digital display circuit of probability results, and the input end of described sensor and computer control electrically connects; The output terminal of described display part and digital display circuit electrically connects, and described display part is a big screen display screen; Described support comprises power supply, control gear; the support top panel is provided with gauge tap and signal lamp; its front portion is an induction region; described induction region is provided with the hollow out position of a palm type; this hollow out position has a protection baffle plate; described sensor is located at the inner face of this protection baffle plate, and described display screen stands upright on support top panel rear portion and support combines as a whole, and its characteristics are that described sensor is the fingerprint sensor.
The beneficial effects of the utility model are: owing to adopted technique scheme, the participant presses in the hand-type hollow out of support top panel hand by fingerprint sensor monitoring palm induced signal, calculate participant's the number and the result of participation by control section, and the result is shown on big screen display screen by histogrammic form.Can understand 11 kinds of results' that occur at random probability, and can be observed when the participation number reaches some, 11 kinds of results' histogram envelope line more and more is normal distribution curve.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is a plane structure chart of the present utility model.
Fig. 2 is a workflow diagram of the present utility model.
Embodiment
Probability event statistic device as shown in the figure has support 1, control section 2 and display part 3.Support 1 comprises power supply, control gear, and the support top panel is provided with gauge tap and signal lamp, and its front portion is an induction region, and this induction region is provided with the hollow out position of a palm type, and this hollow out position has a protection baffle plate.Control section 2 comprises that gauge tap, sensor, produce the computer control and the digital display circuit of probability results.Gauge tap is located on the panel, and this switch is directly controlled the unlatching and the closure of whole device; Sensor is the fingerprint sensor, is located at the inner face of this protection baffle plate, electrically connects with the input end of computer control.This control section is responsible for receiving participant's palm induced signal, and controls 11 kinds of probability results that produce at random by computer control circuit.Display part 3 electrically connects with the output terminal of digital display circuit, and this display part 3 is big screen display screens, and display screen stands upright on support 1 top panel rear portion and support 1 combines as a whole, and it mainly shows information such as histogram, participation number, operation result.
The course of work of the present utility model is: press gauge tap " start " button, the computer control circuit startup also enters preset program, show histogram 4 on the big screen display screen, this histogram will show the total number of persons of 11 kinds of results' number and this project of participation.The participant puts the palm of oneself at the palm type position of induction region, bright and the flicker of palm lamp, 10 10 fens digits of computer control circuit computing internally with 10 took out at random in the digit in 5 minutes 10 digits mutually adduction on screen, show participant's result.Possible outcome is: 10 10 fens digits amount to 100 fens, 10 5 fens digits amount to 50 fens, 1 10 fens digit, 95 fens digits amount to 55 fens, 2 10 fens digits, 85 fens digits amount to 60 fens, 3 10 fens digits, 75 fens digits amount to 65 fens, 4 10 fens digits, 65 fens digits amount to 70 fens, 5 10 fens digits, 55 fens digits amount to 75 fens, 6 10 fens digits, 45 fens digits amount to 80 fens, 7 10 fens digits, 35 fens digits amount to 85 fens, 8 10 fens digits, 25 fens digits amount to 90 fens, 9 10 fens digits, 15 fens digit amounts to 95 fens, wherein be divided into small probability event in 100 minutes and 50, and 75 are divided into big probability event.At last the result is shown in the histogram relevant position, glimmers.Along with the continuous increase of the number of participation, histogrammic envelope more and more is normal distribution curve on the giant-screen.Like this, can make participant's participation further understand aspect knowledge such as probability, statistics, normal distribution.
Claims (1)
- A kind of probability event statistic device, have support (1), control section (2) and display part (3), described control section (2) comprises that gauge tap, sensor, produce the computer control and the digital display circuit of probability results, and the input end of described sensor and computer control electrically connects; Described display part (3) electrically connects with the output terminal of digital display circuit, and described display part (3) are big screen display screens; Described support (1) comprises power supply, control gear; the support top panel is provided with gauge tap and signal lamp; its front portion is an induction region; described induction region is provided with the hollow out position of a palm type; this hollow out position has a protection baffle plate; described sensor is located at the inner face of this protection baffle plate, and described display screen stands upright on support (1) top panel rear portion and support (1) combines as a whole, and it is characterized in that: described sensor is the fingerprint sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200723804U CN201397585Y (en) | 2009-05-14 | 2009-05-14 | Statistic device for probability events |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200723804U CN201397585Y (en) | 2009-05-14 | 2009-05-14 | Statistic device for probability events |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201397585Y true CN201397585Y (en) | 2010-02-03 |
Family
ID=41620108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200723804U Expired - Fee Related CN201397585Y (en) | 2009-05-14 | 2009-05-14 | Statistic device for probability events |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201397585Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106971651A (en) * | 2017-04-24 | 2017-07-21 | 郑州航空工业管理学院 | A kind of Teaching Probability Theory and Mathematical Statistics apparatus for demonstrating |
-
2009
- 2009-05-14 CN CN2009200723804U patent/CN201397585Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106971651A (en) * | 2017-04-24 | 2017-07-21 | 郑州航空工业管理学院 | A kind of Teaching Probability Theory and Mathematical Statistics apparatus for demonstrating |
| CN106971651B (en) * | 2017-04-24 | 2018-10-12 | 郑州航空工业管理学院 | A kind of Teaching Probability Theory and Mathematical Statistics apparatus for demonstrating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100203 Termination date: 20100514 |