CN202871146U - Probability event counting device - Google Patents
Probability event counting device Download PDFInfo
- Publication number
- CN202871146U CN202871146U CN 201220595122 CN201220595122U CN202871146U CN 202871146 U CN202871146 U CN 202871146U CN 201220595122 CN201220595122 CN 201220595122 CN 201220595122 U CN201220595122 U CN 201220595122U CN 202871146 U CN202871146 U CN 202871146U
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- housing
- probability
- counting device
- signal lamp
- power supply
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Abstract
The utility model provides a portability event counting device, relates to the counting device for probability events, and belongs to the fields of mathematics, solving the problems in conventional college mathematics probability theory teaching that the teaching is only carried out in a deducing and expounding way based on the theory, and students are hard to understand and master. The portability event counting device is that a control switch and a signal lamp are arranged on an upper panel of a housing; a pinch meter is arranged on a front panel of the housing, and a pressure sensor is arranged in the pinch meter; a liquid crystal display screen is arranged at the rear part of the upper panel of the housing; one end of a power supply is connected with one end of the control switch; and the other end of the control switch is sequentially connected in series with the signal lamp, the pressure sensor, a computer controller, a digital display circuit and the liquid crystal display screen and then is connected with the other end of the power supply. The portability event counting device can realize direct demonstration operation in college mathematics probability theory courses, and enables participants to further understand the knowledge such as the probability, the counting and the normal distribution.
Description
Technical field
The utility model relates to the statistic device of probability event in the art of mathematics.
Background technology
Probability is because being the comparison abstract concept, in College Maths theory of probability course, and the elaboration of only deriving theoretically, the student often is not easy to understand and grasp.If can explain by statistic device for probability events, can make the student be more readily understood and grasp.
The utility model content
The purpose of this utility model is in order to solve at present in the College Maths Teaching of Probability, the elaboration of only deriving theoretically, and the student is not easy the problem understanding and grasp, and a kind of statistic device for probability events is provided, and can realize the ocular demonstration operation.
Realize above-mentioned purpose, the technical scheme that the utility model is taked is:
Statistic device for probability events, comprise support, control module and display unit, described support comprises housing, power supply, gauge tap and signal lamp, described control module comprises spring-grip, pressure transducer, one produces computer control and the Digital Display Circuit of probability results, described display unit is LCDs, the top panel of housing is provided with gauge tap and signal lamp, spring-grip is installed on the front panel of housing, pressure transducer is arranged in the spring-grip, LCDs is arranged on the rear portion of housing top panel, one end of power supply connects the other end of gauge tap and signal lamp with an end of gauge tap, pressure transducer, computer control, after connecting successively, Digital Display Circuit and LCDs connect with the other end of power supply.
The utility model with respect to the beneficial effect of prior art is: utilize the utility model can allow the student participate in the demonstration operation, the student understands easily and grasps, and is convenient to the student and is more readily understood and grasps this subject of probability.
During use, the participant firmly holds spring-grip, and by pressure transducer the pressure signal that monitors is outputed to computer control, count participant's number and the result of participation by computer control, and with results conversion be the probability density histogram by Digital Display Circuit in the liquid crystal display screen display, make the participant further understand the aspect knowledge such as probability, statistics, normal distribution.
Description of drawings
What Fig. 1 represented is circuit diagram of the present utility model;
What Fig. 2 represented is the front view of statistic device for probability events of the present utility model.
Wherein, housing 1, power supply 2, gauge tap 3, signal lamp 4, spring-grip 5, pressure transducer 6, computer control 7, Digital Display Circuit 8, LCDs 9.
Embodiment
As shown in Figures 1 and 2, statistic device for probability events, comprise support, control module and display unit, described support comprises housing 1, power supply 2, gauge tap 3 and signal lamp 4, described control module comprises spring-grip 5, pressure transducer 6, one produces computer control 7 and the Digital Display Circuit 8 of probability results, described display unit is LCDs 9, the top panel of housing 1 is provided with gauge tap 3 and signal lamp 4, spring-grip 5 is installed on the front panel of housing 1, pressure transducer 6 is arranged in the spring-grip 5, LCDs 9 is arranged on the rear portion of housing 1 top panel, one end of power supply 2 connects with an end of gauge tap 3, the other end of gauge tap 3 and signal lamp 4, pressure transducer 6, computer control 7, after connecting successively, Digital Display Circuit 8 and LCDs 9 connect with the other end of power supply 2.When gauge tap 3 was closed, circuit was connected, and signal lamp 4 is lighted, so that statistic device for probability events of the present utility model is in the use state.
Claims (1)
1. statistic device for probability events, comprise support, control module and display unit, it is characterized in that: described support comprises housing (1), power supply (2), gauge tap (3) and signal lamp (4), described control module comprises spring-grip (5), pressure transducer (6), one produces computer control (7) and the Digital Display Circuit (8) of probability results, described display unit is LCDs (9), the top panel of housing (1) is provided with gauge tap (3) and signal lamp (4), spring-grip (5) is installed on the front panel of housing (1), pressure transducer (6) is arranged in the spring-grip (5), LCDs (9) is arranged on the rear portion of housing (1) top panel, one end of power supply (2) connects with an end of gauge tap (3), the other end of gauge tap (3) and signal lamp (4), pressure transducer (6), computer control (7), after connecting successively, Digital Display Circuit (8) and LCDs (9) connect with the other end of power supply (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220595122 CN202871146U (en) | 2012-11-05 | 2012-11-05 | Probability event counting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220595122 CN202871146U (en) | 2012-11-05 | 2012-11-05 | Probability event counting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202871146U true CN202871146U (en) | 2013-04-10 |
Family
ID=48037844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220595122 Expired - Fee Related CN202871146U (en) | 2012-11-05 | 2012-11-05 | Probability event counting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202871146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113870665A (en) * | 2021-10-09 | 2021-12-31 | 韩福梅 | Probability teaching intelligent control demonstration statistical device and method thereof |
-
2012
- 2012-11-05 CN CN 201220595122 patent/CN202871146U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113870665A (en) * | 2021-10-09 | 2021-12-31 | 韩福梅 | Probability teaching intelligent control demonstration statistical device and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20141105 |
|
| EXPY | Termination of patent right or utility model |