CN202404693U - Responder - Google Patents
Responder Download PDFInfo
- Publication number
- CN202404693U CN202404693U CN2012200035488U CN201220003548U CN202404693U CN 202404693 U CN202404693 U CN 202404693U CN 2012200035488 U CN2012200035488 U CN 2012200035488U CN 201220003548 U CN201220003548 U CN 201220003548U CN 202404693 U CN202404693 U CN 202404693U
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- China
- Prior art keywords
- trigger
- digital display
- question
- circuit
- audible
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Abstract
The utility model discloses a responder, which comprises an audible and visual alarm circuit and a digital display circuit. The audible and visual alarm circuit consists of a trigger 74S174, input ends of the trigger 74LS174 are respectively connected with six answering keys, output ends of the trigger 74LS174 are connected with corresponding luminous devices and corresponding sounding devices, six complementary outputs are connected to the same nand gate to realize self locking, CP (clock pulse) input is controlled, and the digital display circuit consists of a priority encoder 74LS148, an encoder 4LS247 and an LED nixie tube. The responder can be used by six contestants simultaneously, has an audible and visual alarm function and a digital display function, and is low in cost, simple in process and convenient in maintenance, and the quality of used elements is low.
Description
Technical field
The utility model relates to electronic device field, the question-and-answer game apparatus that uses in specifically a kind of intelligence test process.
Background technology
Existing question-and-answer game apparatus has multiple, mainly contains the shortcoming of following several respects: 1, the question-and-answer game apparatus circuit is formed complicacy, and poor reliability causes erroneous judgement easily; 2, utilize the LED electrical screen to show that cost is high; 3, utilize the question-and-answer game apparatus oneself of computer programming to be not easy to maintenance.
The utility model content
The purpose of the utility model provides a kind of simple in structure, and cost is low, for ease of maintenaince, has the question-and-answer game apparatus of sound and light of alarm and digital Presentation Function.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of question-and-answer game apparatus; Comprise sound light alarming circuit and digital display circuit, comprise trigger 74LS 174 in the said sound light alarming circuit, the input end of trigger 74LS 174 is raced to be the first to answer a question button and is connected with six respectively; Output terminal is connected with corresponding light-emitting device and sound-producing device; Utilize six complementary outputs to be connected to same Sheffer stroke gate and realize self-locking, the input of control CP pulse, said digital display circuit is made up of priority encoder 74LS148, code translator 4LS247 and LED charactron.
The beneficial effect of the utility model is:
This question-and-answer game apparatus can supply six players to use simultaneously, has sound and light of alarm, has digital Presentation Function, and used components and parts are less, and cost is low, and technology is simple, convenient for maintaining.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.
Fig. 1 is the main circuit diagram of the utility model;
Fig. 2 is the digital display circuit figure of the utility model.
Embodiment
A kind of question-and-answer game apparatus; Comprise sound light alarming circuit and digital display circuit, comprise trigger 74LS174 in the said sound light alarming circuit, the input end of trigger 74LS174 is raced to be the first to answer a question button and is connected with six respectively; Output terminal is connected with corresponding light-emitting device and sound-producing device; Utilize six complementary outputs to be connected to same Sheffer stroke gate and realize self-locking, the input of control CP pulse, said digital display circuit is made up of priority encoder 74LS148, code translator 4LS247 and LED charactron.
Before racing to be the first to answer a question, with the 74LS174 zero clearing.74LS148 is effective for failing people and output low level.When the no one raced to be the first to answer a question, the input end of 74LS148 was 1, and output also is 1, nixie display display digit 8.A point current potential approaches 0 volt, and base potential also approaches 0 volt, and self-maintained circuit is not worked, and loudspeaker is sounding not.
When racing to be the first to answer a question, which switch is connected earlier, and corresponding lamp is bright, and A point current potential raises, and the base potential of triode also raises, the self-maintained circuit operate as normal, and loudspeaker sends sound, reminds the host.Lockout circuit simultaneously, other buttons are inoperative this moment.It is all invalid that other each groups are raced to be the first to answer a question.Coding shows corresponding number with the decoding display circuit simultaneously.
More than the disclosed specific embodiment that is merely this patent, but this patent is not limited thereto, for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model principle, the distortion of making should be regarded as belonging to the utility model protection domain.
Claims (1)
1. question-and-answer game apparatus; Comprise sound light alarming circuit and digital display circuit, it is characterized in that: comprise trigger 74LS174 in the said sound light alarming circuit, the input end of trigger 74LS174 is raced to be the first to answer a question button and is connected with six respectively; Output terminal is connected with corresponding light-emitting device and sound-producing device; Utilize six complementary outputs to be connected to same Sheffer stroke gate and realize self-locking, the input of control CP pulse, said digital display circuit is made up of priority encoder 74LS148, code translator 4LS247 and LED charactron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200035488U CN202404693U (en) | 2012-01-06 | 2012-01-06 | Responder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200035488U CN202404693U (en) | 2012-01-06 | 2012-01-06 | Responder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202404693U true CN202404693U (en) | 2012-08-29 |
Family
ID=46702328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200035488U Expired - Fee Related CN202404693U (en) | 2012-01-06 | 2012-01-06 | Responder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202404693U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105225377A (en) * | 2015-09-29 | 2016-01-06 | 河南科技大学 | A kind of question-and-answer game apparatus |
| CN105374138A (en) * | 2015-09-30 | 2016-03-02 | 河南科技大学 | A responder |
-
2012
- 2012-01-06 CN CN2012200035488U patent/CN202404693U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105225377A (en) * | 2015-09-29 | 2016-01-06 | 河南科技大学 | A kind of question-and-answer game apparatus |
| CN105374138A (en) * | 2015-09-30 | 2016-03-02 | 河南科技大学 | A responder |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20130106 |