CN209858926U - Projector with voice recognition function - Google Patents
Projector with voice recognition function Download PDFInfo
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- CN209858926U CN209858926U CN201920427114.2U CN201920427114U CN209858926U CN 209858926 U CN209858926 U CN 209858926U CN 201920427114 U CN201920427114 U CN 201920427114U CN 209858926 U CN209858926 U CN 209858926U
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- 230000006870 function Effects 0.000 claims abstract description 13
- 238000005286 illumination Methods 0.000 claims description 8
- 238000012216 screening Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000012795 verification Methods 0.000 abstract description 5
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
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Abstract
The utility model provides a projector with voice recognition function, which comprises a FPGA chip, a microphone, a voice MCU chip, a voice recognizer and a memory provided with a voice database; the FPGA chip is electrically connected with the voice MCU chip, the voice MCU chip is also electrically connected with the voice recognizer, the voice synthesizer and the memory, the memory is also electrically connected with the voice recognizer, and the voice recognizer is electrically connected with the microphone. The utility model has the advantages that: the built-in voice recognizer acquires a voice signal from a microphone, and converts the voice signal into a character string by comparing related data of a voice database in a memory, a voice MCU chip performs keyword screening verification on the character string, sends a control instruction to an FPGA chip and feeds back a screening verification result, and the FPGA chip controls the working state of the projector, so that the aim of controlling the projector to work by voice is fulfilled, and intelligent operation is realized; the voice recognition reaction is fast, and the accuracy is high.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a projector technical field specifically relates to a take projector of speech recognition function.
[ background of the invention ]
The projector is a device capable of projecting images or videos onto a curtain, and can be connected with a computer, a VCD, a DVD, a BD, a game machine, a DV, and the like through different interfaces to play corresponding video signals. The conventional projector has only a simple picture projection function, and a user operates the projector through a key on the projector, but the operation is not convenient enough.
[ Utility model ] content
For overcoming the defect that existing equipment exists, the utility model provides a take speech recognition function's projector, the speech recognition ware of establishing acquires the speech signal who comes from the microphone to convert this speech signal into the character string, pronunciation MCU chip carries out the keyword screening to the character string, sends control command to FPGA chip, thereby reaches the purpose through speech control projector work, realizes intelligent operation.
The utility model discloses a realize like this: a projector with a voice recognition function comprises an FPGA chip, a microphone, a voice MCU chip, a voice recognizer and a memory provided with a voice database; the FPGA chip is electrically connected with the voice MCU chip, the voice MCU chip is also electrically connected with the voice recognizer, the voice synthesizer and the memory, the memory is also electrically connected with the voice recognizer, and the voice recognizer is electrically connected with the microphone.
Furthermore, the device also comprises a loudspeaker and a voice synthesizer, wherein the voice MCU chip is electrically connected with the voice synthesizer, the memory is electrically connected with the voice synthesizer, and the voice synthesizer is also electrically connected with the loudspeaker.
The microphone is electrically connected with the voice recognizer through one analog-to-digital converter, the loudspeaker is electrically connected with the voice synthesizer through one digital-to-analog converter, and the voice MCU chip is electrically connected with the FPGA chip through another digital-to-analog converter and another analog-to-digital converter.
Furthermore, the LED display screen also comprises a fan driving module, an illumination driving module, a display driving module and a lens motor driving module, wherein the FPGA chip is electrically connected with the fan driving module, the illumination driving module, the display driving module and the lens motor driving module.
Further, the memory is a Flash memory.
The utility model has the advantages that: the built-in voice recognizer acquires a voice signal from a microphone, and converts the voice signal into a character string by comparing related data of a voice database in a memory, a voice MCU chip performs keyword screening verification on the character string, sends a control instruction to an FPGA chip and feeds back a screening verification result, and the FPGA chip controls the working state of the projector, so that the aim of controlling the projector to work by voice is fulfilled, and intelligent operation is realized; the voice recognition reaction is fast, and the accuracy is high.
[ description of the drawings ]
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a projector with a voice recognition function according to the present invention.
The labels in the figures indicate: the system comprises a Field Programmable Gate Array (FPGA) chip, a 2-microphone, a 3-voice Micro Control Unit (MCU) chip, a 4-voice recognizer, a 5-memory, a 6-loudspeaker, a 7-voice synthesizer, an 8-digital-to-analog converter, a 9-analog-to-digital converter, a 10-fan driving module, an 11-illumination driving module, a 12-display driving module and a 13-lens motor driving module.
[ detailed description ] embodiments
Referring to fig. 1, a projector with a voice recognition function includes an FPGA chip 1, a microphone 2, a voice MCU chip 3, a voice recognizer 4, and a memory 5 installed with a voice database; the FPGA chip 1 is electrically connected with the voice MCU chip 3, the voice MCU chip 3 is also electrically connected with the voice recognizer 4, the voice synthesizer 7 and the memory 5, the memory 5 is also electrically connected with the voice recognizer 4, and the voice recognizer 4 is electrically connected with the microphone 2. The FPGA chip 1 is a Field Programmable Gate Array (FPGA), which is a video image processor of the existing projector and is responsible for segmentation, splicing, superposition, scaling, frame doubling processing, and the like of video images. The voice recognizer 4 acquires the voice signal from the microphone 2, performs spectrum analysis and feature extraction, converts the voice signal into a character string by comparing the related data of the voice database in the memory 5, and then transmits the character string to the voice MCU chip 3.
The model of the FPGA chip 1 is PWC 980G; the model of the voice MCU chip 3 is STM 32; the voice MCU chip 3 performs keyword screening and verification on the received character string, a list of keywords is in the memory 5, and the voice MCU chip 3 calls the keyword list; if the character string is verified to be an illegal keyword, the voice MCU chip 3 makes a feedback signal of 'refusing' to a user, and the FPGA chip 1 is not controlled by the voice MCU chip 3; if the character string is verified to be a legal keyword, the voice MCU informs the FPGA chip 1 of the projector through serial port communication to switch the corresponding working state of the projector, and carries out OSD picture prompt; meanwhile, the FPGA chip 1 feeds back an execution result to the voice MCU chip 3, and the voice MCU chip 3 feeds back a signal to a user.
The voice MCU chip 3 is electrically connected with the voice synthesizer 7, the memory 5 is electrically connected with the voice synthesizer 7, and the voice synthesizer 7 is also electrically connected with the loudspeaker 6. The MCU chip makes a "reject" feedback signal to the speech synthesizer 7, which speech synthesizer 7 extracts the corresponding character string from the speech database in the memory 5, converts it into a speech signal and sends it to the speaker, informing the user. Similarly, after receiving the execution result signal of the FPGA chip 1, the voice MCU chip 3 controls the voice synthesizer 7 to notify the user of the execution result.
The microphone 2 is electrically connected with the voice recognizer 4 through one analog-to-digital converter 9, the loudspeaker 6 is electrically connected with the voice synthesizer 7 through one digital-to-analog converter 8, and the voice MCU chip 3 is electrically connected with the FPGA chip 1 through the other digital-to-analog converter 8 and the other analog-to-digital converter 9; control signals of the voice MCU chip 3 are sent to the FPGA chip 1 through digital-to-analog conversion, and execution result signals of the FPGA chip 1 are sent to the voice MCU chip 3 through analog-to-digital conversion; thus, the voice recognition is more accurate, and the voice recognition reaction is quicker.
The LED display screen also comprises a fan driving module 10, an illumination driving module 11, a display driving module 12 and a lens motor driving module 13, wherein the FPGA chip 1 is electrically connected with the fan driving module 10, the illumination driving module 11, the display driving module 12 and the lens motor driving module 13. The FPGA chip 1 controls the projection working state of the projector. The fan driving module 10 is used for adjusting the fan state of the projector, the illumination driving module 11 is used for adjusting the light state of the projector, the display driving module 12 is used for adjusting the display state of the projector, and the lens motor driving module 13 is used for adjusting the lens position angle and other states of the projector.
The memory 5 is a Flash memory 5; also be called the flash memory, be a nonvolatile memory, the flash memory also can keep data for a long time under the condition that does not have the electric current supply, improves the security of the pronunciation database of well storage.
Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.
Claims (5)
1. The utility model provides a take projector of speech recognition function which characterized in that: the device comprises an FPGA chip, a microphone, a voice MCU chip, a voice recognizer and a memory provided with a voice database; the FPGA chip is electrically connected with the voice MCU chip, the voice MCU chip is also electrically connected with the voice recognizer and the memory, the memory is also electrically connected with the voice recognizer, and the voice recognizer is electrically connected with the microphone.
2. The projector with the voice recognition function according to claim 1, characterized in that: the voice MCU chip is electrically connected with the voice synthesizer, the memory is electrically connected with the voice synthesizer, and the voice synthesizer is also electrically connected with the loudspeaker.
3. The projector with the voice recognition function according to claim 2, characterized in that: the microphone is electrically connected with the voice recognizer through one analog-to-digital converter, the loudspeaker is electrically connected with the voice synthesizer through one digital-to-analog converter, and the voice MCU chip is electrically connected with the FPGA chip through another digital-to-analog converter and another analog-to-digital converter.
4. The projector with the voice recognition function according to claim 1, characterized in that: the LED display screen also comprises a fan driving module, an illumination driving module, a display driving module and a lens motor driving module, wherein the FPGA chip is electrically connected with the fan driving module, the illumination driving module, the display driving module and the lens motor driving module.
5. The projector with the voice recognition function according to claim 1, characterized in that: the memory is a Flash memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920427114.2U CN209858926U (en) | 2019-03-29 | 2019-03-29 | Projector with voice recognition function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920427114.2U CN209858926U (en) | 2019-03-29 | 2019-03-29 | Projector with voice recognition function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209858926U true CN209858926U (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920427114.2U Expired - Fee Related CN209858926U (en) | 2019-03-29 | 2019-03-29 | Projector with voice recognition function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111711804A (en) * | 2020-06-17 | 2020-09-25 | 华东师范大学 | FPGA prototype verification platform for digital micromirror device driving chip |
-
2019
- 2019-03-29 CN CN201920427114.2U patent/CN209858926U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111711804A (en) * | 2020-06-17 | 2020-09-25 | 华东师范大学 | FPGA prototype verification platform for digital micromirror device driving chip |
| CN111711804B (en) * | 2020-06-17 | 2021-05-25 | 华东师范大学 | FPGA prototype verification platform for digital micromirror device driving chip |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191227 |
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| CF01 | Termination of patent right due to non-payment of annual fee |