CN1567272A - Intelligent voice nixie display - Google Patents
Intelligent voice nixie display Download PDFInfo
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- CN1567272A CN1567272A CN 03138722 CN03138722A CN1567272A CN 1567272 A CN1567272 A CN 1567272A CN 03138722 CN03138722 CN 03138722 CN 03138722 A CN03138722 A CN 03138722A CN 1567272 A CN1567272 A CN 1567272A
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Abstract
This invention relates to a kind of intelligent voice digital display, which comprises serial data receiving circuit, SCM control circuit, digital control circuit, keyboard circuit, voice amplify circuit. The serial port of computer connects with the input end of serial data receiving circuit. The output end of serial data receiving circuit connects with the SCM serial data end of SCM control circuit. The output of internal SCM timer connects with the input end of digital control circuit. The output end of digital control circuit connects with the corresponding input end of digital display. The external interruption input end of SCM connects with the output end of keyboard circuit responding signal.
Description
Technical field
The present invention relates to a kind of peripherals of PC microcomputer, specifically a kind of intelligent sound nixie display.
Background technology
The PC microcomputer generally has only a display at present, watch for the operator, this mode can satisfy most microcomputer users, but along with widespread use and a large amount of popularize of microcomputer management system in service industry and administrative authority, this single display device can not satisfy the requirement of these industries.The service object generally can not see the content that they are concerned about intuitively, more can not get voice suggestion accurately, occurs phenomenons such as work efficiency is low, error rate height easily.
Summary of the invention
Technical matters to be solved by this invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of structure reasonable, easy for operation, can show digital content that computing machine need show and the intelligent sound nixie display of the service-oriented object that plays back with voice simultaneously.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of intelligent sound nixie display, it is by the serial data receiving circuit, single chip machine controlling circuit, digital control circuit, keyboard circuit, the sound amplifying circuit constitutes, the serial port that it is characterized in that computing machine links to each other with the input end of serial data receiving circuit, the output terminal of serial data receiving circuit links to each other with single-chip microcomputer serial data end in the single chip machine controlling circuit, the timer internal output of single-chip microcomputer links to each other with the input of digital control circuit, the output of digital control circuit links to each other with the corresponding input end of charactron, and the input end of the external interrupt of single-chip microcomputer links to each other with the output terminal of keyboard circuit response signal.Circuit board employing+5V power supply of the present invention, sound amplifying circuit employing+12V power supply.
9 needle serial ports of computing machine of the present invention link to each other with the input end of the serial data receiving circuit that the MAX232U2 chip is formed, the serial data receiving end of single chip computer AT 89C51U1 in the output terminal of the serial data receiving circuit that U2 forms and the single chip machine controlling circuit links to each other, the timer 0 of U1 links to each other with the clock signal terminal of digital control circuit, and the timer 1 of U1 links to each other with the data terminal of digital control circuit.Low 4 and high 4 of the output terminal of a shift register link to each other with the input ends of two common positive BCD-seven-segment decoder/driver 74LS47 respectively, and the output terminal of each 74LS47 links to each other with the control end of a charactron.The clock signal pin of U1 meets 12MHz crystal oscillator E1, and data transmit baud rate and are decided to be 2400bps.
The output terminal of sound card links to each other with the input end of the sound amplifying circuit of being made up of power amplifier chip TDA2030A, and the output terminal of sound amplifying circuit links to each other with loudspeaker.
Low four of low four outputs of the P0 port of U1 and eight D-latch 74LS373U5 FPDP link to each other, high four outputs of eight D-latch 74LS373U4 link to each other through the Gao Siwei of current-limiting resistance with the P0 port of U1, and two 4 inputs link to each other with the INT1 signal end of U1 with the road output of door 74LS21U3.
The relative prior art of the present invention, its beneficial effect be, structure rationally, and is easy for operation, and content shows timely, clear, accurate, and pronunciation nature, smoothness, cordiality have improved service quality, have reduced labour intensity, and the handled easily person exchanges with the service object.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is a circuit composition frame chart of the present invention
Fig. 2 is circuit theory diagrams of the present invention.
Fig. 3 is the circuit theory diagrams of display module in the circuit theory diagrams of the present invention.
Fig. 4 is the schematic diagram of power amplification circuit.
Embodiment
As can be seen from Figure 1, a kind of intelligent sound nixie display, it is by serial data receiving circuit 1, single chip machine controlling circuit 2, digital control circuit 3, charactron 4, keyboard circuit 5, sound amplifying circuit 6, loudspeaker 7 constitute, the serial port of computing machine links to each other with the input end of serial data receiving circuit 1, the output terminal of serial data receiving circuit 1 links to each other with single-chip microcomputer serial data end in the single chip machine controlling circuit 2, the output terminal of single chip machine controlling circuit 2 links to each other with the input end of digital control circuit 3, the output of digital control circuit 3 links to each other with charactron 4, and the single-chip microcomputer in the single chip machine controlling circuit 2 links to each other with keyboard circuit 5.The output of the sound card of computing machine links to each other with the input of sound amplifying circuit 6, and the output of sound amplifying circuit 6 links to each other with loudspeaker 7.
The 7th pin that reception pin RXD in Fig. 2 in computing machine 9 needle serial ports meets serial chip MAX232U2 is a D OUT2 pin, and the 8th pin that transmission pin TXD meets U1 is a R IN2 pin.The D IN2 pin of U2 connects the P3.1 pin of single-chip microcomputer AT89C51U1, and the R OUT2 pin of U2 connects the P3.0 pin of U1.The clock signal pin one 8,19 of U1 meets 12MHz crystal oscillator E1, and data transmit baud rate and are set at 2400bps.The timer T0 of U1 links to each other with the clock signal terminal CLK of 8 bit shift register 74LS164U7-U15 as the clock signal terminal of digital control circuit, and the timer T1 of U1 links to each other with the data input pin of U7.
Low four outputs of the P0 port of U1 meet low four of eight D-latch 74LS373U5 FPDP, high four outputs of eight D-latch 74LS373U4 connect P0 port high four of U1 through current-limiting resistance, two 4 inputs link to each other with the INT1 signal end of U1 with the road output of door 74LS21U3.
In Fig. 3, the most significant digit Q7 of the data output of each 74LS164 connects the data input pin of next 74LS164, the output terminal of each common anode BCD-seven-segment decoder/driver 74LS47 links to each other with a corresponding input end of charactron, each 74LS164 output high 4 and hang down 4 and link to each other with the input end of two 74LS47 respectively.By the order of data transmission, the RBI end of 74LS 47 of controlling the charactron of 1-3,7-9, the 13-15 input termination low level of promptly dynamically turning off the light, the 74LS47 output terminal connects and draws resistance.The common anode tap of each charactron connects a current-limiting resistance earlier and links to each other with power supply, and the radix point control pin of the 4th, 10,16 charactron links to each other with ground by a current-limiting resistance.
Linked to each other with the input end in the same way of power amplifier chip TDA2030AU35 by electrochemical capacitor C12, C13 by sound card output in Fig. 4, enlargement factor is by resistance R 162, R163 control.
Claims (4)
1. intelligent sound nixie display, it is by the serial data receiving circuit, single chip machine controlling circuit, digital control circuit, keyboard circuit, the sound amplifying circuit constitutes, the serial port that it is characterized in that computing machine links to each other with the input end of serial data receiving circuit, the output terminal of serial data receiving circuit links to each other with single-chip microcomputer serial data end in the single chip machine controlling circuit, the output of two timer internals of single-chip microcomputer links to each other with the input of digital control circuit, the output terminal of digital control circuit links to each other with the corresponding input end of charactron, and the input end of the external interrupt of single-chip microcomputer links to each other with the output terminal of keyboard circuit response signal.
2. intelligent sound nixie display according to claim 1, it is characterized in that: 9 needle serial ports of computing machine link to each other with the serial data receiving circuit of being made up of the MAX232U2 chip, the serial data receiving circuit links to each other with single chip computer AT 89C51U1 in the single chip machine controlling circuit, the timer of U1 sends clock signal and data-signal control shift register 74LS164U7, control remaining shift register by U7, two seven segment digital tubes driver 74LS47 of a shift register control, charactron of each 74LS47 control, the clock signal pin of U1 meets 12MHz crystal oscillator E1, and data transmit baud rate and are decided to be 2400bps.
3. intelligent sound nixie display according to claim 1 is characterized in that: the output of sound card connects the sound amplifying circuit of being made up of power amplifier chip TDA2030, and sound sends after amplifying.
4. intelligent sound nixie display according to claim 2, it is characterized in that: low four outputs of the P0 port of U1 meet low four of eight D-latch 74LS373U5 FPDP, high four outputs of eight D-latch 74LS373U4 connect P0 port high four of U1 through current-limiting resistance, two 4 inputs link to each other with the INT1 signal end of U1 with the road output of door 74LS21U3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03138722 CN1567272A (en) | 2003-06-26 | 2003-06-26 | Intelligent voice nixie display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03138722 CN1567272A (en) | 2003-06-26 | 2003-06-26 | Intelligent voice nixie display |
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| Publication Number | Publication Date |
|---|---|
| CN1567272A true CN1567272A (en) | 2005-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03138722 Pending CN1567272A (en) | 2003-06-26 | 2003-06-26 | Intelligent voice nixie display |
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| CN (1) | CN1567272A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806569A (en) * | 2018-06-13 | 2018-11-13 | 任志广 | A kind of digital display module |
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2003
- 2003-06-26 CN CN 03138722 patent/CN1567272A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806569A (en) * | 2018-06-13 | 2018-11-13 | 任志广 | A kind of digital display module |
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