CN107346961A - A kind of electric intelligent voice system - Google Patents
A kind of electric intelligent voice system Download PDFInfo
- Publication number
- CN107346961A CN107346961A CN201710556100.6A CN201710556100A CN107346961A CN 107346961 A CN107346961 A CN 107346961A CN 201710556100 A CN201710556100 A CN 201710556100A CN 107346961 A CN107346961 A CN 107346961A
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- China
- Prior art keywords
- triode
- resistance
- circuit
- microprocessor
- sound
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- 238000013500 data storage Methods 0.000 claims abstract description 8
- 230000005611 electricity Effects 0.000 claims description 3
- 210000004209 hair Anatomy 0.000 claims 2
- 238000005516 engineering process Methods 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000003786 synthesis reaction Methods 0.000 abstract description 3
- 239000003990 capacitor Substances 0.000 abstract description 2
- 230000003321 amplification Effects 0.000 description 6
- 238000003199 nucleic acid amplification method Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F27/00—Combined visual and audible advertising or displaying, e.g. for public address
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F27/00—Combined visual and audible advertising or displaying, e.g. for public address
- G09F2027/002—Advertising message recorded in a memory device
Abstract
The invention discloses a kind of electric intelligent voice system, including microprocessor, I/O expansion interface circuits, data storage, display screen, key circuit, RFID identification circuit, sound-compound-circuit and USB interface, the I/O expansion interface circuits connect data storage, display screen, key circuit and microprocessor respectively, microprocessor is also respectively connected with RFID identification circuit, sound-compound-circuit and USB interface, and sound-compound-circuit is also sequentially connected low-pass filter circuit, audio amplifier circuit and loudspeaker；The microprocessor uses AT89C51 system.Electric intelligent voice system combination RFID REIDs and speech synthesis technique of the present invention, it is proposed that it is a kind of can automatic identification illustration object speech guide device, and combine memory technology, realize upgrading in time for various guide to visitors information；Match somebody with somebody an intercom audio amplifier circuit for Resistor-Capacitor Unit design using multiple triodes in addition, compared to the amplifying circuit using Design of Amplifiers, loss is low, and stability is high.
Description
Technical field
The present invention relates to a kind of voice system, specifically a kind of electric intelligent voice system.
Background technology
Some major museums at home and scenic spot, some speech guide devices are employed, are provided respectively for visitor
Kind explains and guide, greatly facilitates understanding of the visitor to museum and scenic spot history culture.But traditional speech guide device
Function is relatively simple, power consumption is big, cost is high, data renewal is complicated, and visitor needs to be manually entered to encode can just be broadcast accordingly
Information is put, the further genralrlization for limiting speech guide device uses.The present invention combines RFID REIDs and phonetic synthesis
Technology, it is proposed that it is a kind of can automatic identification illustration object speech guide device, and combine memory technology, realize various guide to visitors information
Upgrade in time.
The content of the invention
It is an object of the invention to provide a kind of electric intelligent voice system, is asked with solve to propose in above-mentioned background technology
Topic.
To achieve the above object, the present invention provides following technical scheme：
A kind of electric intelligent voice system, including microprocessor, I/O expansion interface circuits, data storage, display screen,
Key circuit, RFID identification circuit, sound-compound-circuit and USB interface, the I/O expansion interface circuits connect data and deposited respectively
Reservoir, display screen, key circuit and microprocessor, microprocessor be also respectively connected with RFID identification circuit, sound-compound-circuit and
USB interface, sound-compound-circuit are also sequentially connected low-pass filter circuit, audio amplifier circuit and loudspeaker；The audio amplification electricity
It is defeated that road includes electric capacity C1, resistance R1, triode VT1, diode D1, triode VT2 and electric capacity C2, electric capacity C1 one end connection
Enter signal Vi, the electric capacity C1 other ends connect grounding resistance R1 and triode VT1 base stages respectively, and triode VT1 emitter stages connect respectively
Triode VT2 emitter stages and resistance R4 are connect, the resistance R4 other ends connect resistance R8, triode VT7 colelctor electrodes and triode respectively
VT6 colelctor electrodes, the resistance R8 other ends connect diode D1 negative poles and triode VT7 base stages, triode VT7 emitter stages difference respectively
Connecting triode VT6 base stages and resistance R7, triode VT6 emitter stages connect resistance R5, triode VT5 emitter stages, resistance respectively
R9 and output end vo, resistance R9 other ends connection ground capacity C3, resistance R5 other end connecting triode VT2 base stages, triode
VT5 base stages connect the resistance R7 other ends and triode VT4 emitter stages respectively, and triode VT4 base stages connect resistance R6, three poles respectively
Pipe VT3 colelctor electrodes and electric capacity C2, resistance R6 other ends connection diode D1 positive poles, triode VT3 emitter stages connection resistance R4, three
Pole pipe VT3 base stages connect the electric capacity C2 other ends, triode VT1 colelctor electrodes and resistance R2 respectively, and the resistance R2 other ends connect respectively
Resistance R3, the resistance R4 other ends, triode VT4 colelctor electrodes, triode VT5 colelctor electrodes and the connection of power supply VCC, resistance the R3 other end
Triode VT2 colelctor electrodes.
As the further scheme of the present invention：The microprocessor uses AT89C51 system.
As the further scheme of the present invention：The sound-compound-circuit uses TTS sound-compound-circuits.
As the further scheme of the present invention：The RFID identification circuit is controlled using chip EM4095.
As further scheme of the invention：The power supply VCC voltages are 12V.
Compared with prior art, the beneficial effects of the invention are as follows：Electric intelligent voice system combination RFID radio frequencies of the present invention
Identification technology and speech synthesis technique, it is proposed that it is a kind of can automatic identification illustration object speech guide device, and combine storage skill
Art, realize upgrading in time for various guide to visitors information；Match somebody with somebody an intercom audio for Resistor-Capacitor Unit design using multiple triodes in addition
Amplifying circuit, compared to the amplifying circuit using Design of Amplifiers, loss is low, and stability is high.
Brief description of the drawings
Fig. 1 is the structural representation of electric intelligent voice system.
Fig. 2 is the circuit diagram of electric intelligent voice system sound intermediate frequency amplifying circuit.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Refer to Fig. 1~2, in the embodiment of the present invention, a kind of electric intelligent voice system, including microprocessor, I/O extension
Interface circuit, data storage, display screen, key circuit, RFID identification circuit, sound-compound-circuit and USB interface, the I/
O expansion interface circuits connect data storage, display screen, key circuit and microprocessor respectively, and microprocessor is also respectively connected with
RFID identification circuit, sound-compound-circuit and USB interface, sound-compound-circuit is also sequentially connected low-pass filter circuit, audio is put
Big circuit and loudspeaker.
The present invention operation principle be：RFID is commonly called as electronic tag, is a kind of contactless automatic identification technology, and it is logical
Cross radiofrequency signal automatic identification destination object and obtain related data, identification work is operable with various evils without manual intervention
In bad environment, RFID technique can recognize that high-speed moving object and can identify multiple labels simultaneously, swift and convenient to operate, most basic
RFID system is made up of three parts：Label (tag), is made up of coupling element and chip, and there is each label unique electronics to compile
Code, is attached on object and identifies destination object；Reader (reader), read (can also write sometimes) label information and set
It is standby, it may be designed as hand-held or fixed；Antenna (anten-na), transmits radiofrequency signal between label and reader.
Referring to Fig. 1, the label information of acquisition is sent to microprocessor by RFID identification circuit, microprocessor is believed according to label
Breath reads corresponding text message from data storage and is sent to sound-compound-circuit, voice by I/O expansion interface circuits
Text message is converted to voice messaging by combiner circuit, is then sent after low-pass filtered circuit filtering and audio amplifier circuit amplification
To loudspeaker.Meanwhile display screen shows current tour according to label information, in addition, can be with external equipment by USB interface
Some information on services can be inquired about, key circuit is same as being manually entered Query Information.
Referring to Fig. 2, the audio amplifier circuit includes electric capacity C1, resistance R1, triode VT1, diode D1, triode
VT2 and electric capacity C2, described electric capacity C1 one end connect input signal Vi, and the electric capacity C1 other ends connect grounding resistance R1 and three poles respectively
Pipe VT1 base stages, triode VT1 emitter stages difference connecting triode VT2 emitter stages and resistance R4, the resistance R4 other ends connect respectively
Resistance R8, triode VT7 colelctor electrodes and triode VT6 colelctor electrodes, the resistance R8 other ends connect diode D1 negative poles and three respectively
Pole pipe VT7 base stages, triode VT7 emitter stages difference connecting triode VT6 base stages and resistance R7, triode VT6 emitter stage difference
Connect resistance R5, triode VT5 emitter stages, resistance R9 and output end vo, the connection of the resistance R9 other ends ground capacity C3, resistance R5
Other end connecting triode VT2 base stages, triode VT5 base stages connect the resistance R7 other ends and triode VT4 emitter stages respectively, and three
Pole pipe VT4 base stages connect resistance R6, triode VT3 colelctor electrodes and electric capacity C2 respectively, and resistance R6 other ends connection diode D1 is just
Pole, triode VT3 emitter stages connection resistance R4, triode VT3 base stages connect the electric capacity C2 other ends, triode VT1 current collections respectively
Pole and resistance R2, the resistance R2 other ends connect resistance R3, the resistance R4 other ends, triode VT4 colelctor electrodes, triode VT5 respectively
Colelctor electrode and power supply VCC, resistance R3 other end connecting triode VT2 colelctor electrodes.The microprocessor uses single-chip microcomputer
AT89C51.The sound-compound-circuit uses TTS sound-compound-circuits.The RFID identification circuit is controlled using chip EM4095
System.The power supply VCC voltages are 12V.
Input signal Vi carries out voltage amplification, the letter after amplification through C1 to the differential input amplifier being made up of VT1 and VT2
Number to be taken out from VT1 colelctor electrode, send driver triode VT3 to enter row energization amplification, pumping signal is taken out from VT3 colelctor electrode, point
Two-way exports：Underarm PNP multiple tubes ground level (the VT7 bases of the complementary push-pull amplifying circuit of VT6 and VT7 compositions are sent through R6, D1 all the way
Level), when signal is negative half period, multiple tube conducting, signal exports from output end vo, and multiple tube ends when signal is positive half cycle；
Another way directly send the NPN multiple tubes (VT4 ground levels) that VT4 and VT5 is formed, when signal is positive half cycle, multiple tube conducting, and signal
Exported from output end vo, the cut-off of signal negative half period；Audio signal after amplification is exported by VT5, VT6 emitting stage.
C2 is vibrationproof electric capacity, the high-frequency self-excitation being likely to occur for rejective amplifier, and C2 is called VT3 neutralizing capacitance, or
Person's negative-feedback electric capacity, lag compensation electric capacity, VT3 high-frequency gain can be reduced, destroy the amplitude versus frequency characte of self-excitation, resistance R9, electricity
Hold C/3 and form a capacitive load, turn into the impedance compensation circuit of output end vo, to compensate for the induction reactance of output end vo load into
Point, make amplifier operation stable, be not easy self-excitation, output stage transistor is less prone to overvoltage, running and comparing safety.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (5)
1. a kind of electric intelligent voice system, including microprocessor, I/O expansion interface circuits, data storage, display screen, press
Key circuit, RFID identification circuit, sound-compound-circuit and USB interface, it is characterised in that the I/O expansion interface circuits difference
Connection data storage, display screen, key circuit and microprocessor, microprocessor are also respectively connected with RFID identification circuit, voice
Combiner circuit and USB interface, sound-compound-circuit are also sequentially connected low-pass filter circuit, audio amplifier circuit and loudspeaker；It is described
Audio amplifier circuit includes electric capacity C1, resistance R1, triode VT1, diode D1, triode VT2 and electric capacity C2, the electric capacity C1
One end connects input signal Vi, and the electric capacity C1 other ends connect grounding resistance R1 and triode VT1 base stages, triode VT1 hairs respectively
Emitter-base bandgap grading distinguishes connecting triode VT2 emitter stages and resistance R4, resistance the R4 other end connect resistance R8, triode VT7 current collections respectively
Pole and triode VT6 colelctor electrodes, the resistance R8 other ends connect diode D1 negative poles and triode VT7 base stages, triode VT7 respectively
Emitter stage distinguishes connecting triode VT6 base stages and resistance R7, triode VT6 emitter stage connect resistance R5, triode VT5 hair respectively
Emitter-base bandgap grading, resistance R9 and output end vo, resistance R9 other ends connection ground capacity C3, resistance R5 other end connecting triode VT2 bases
Pole, triode VT5 base stages connect the resistance R7 other ends and triode VT4 emitter stages respectively, and triode VT4 base stages connect electricity respectively
Hinder R6, triode VT3 colelctor electrodes and electric capacity C2, resistance the R6 other end connection diode D1 positive poles, the connection of triode VT3 emitter stages
Resistance R4, triode VT3 base stage connect the electric capacity C2 other ends, triode VT1 colelctor electrodes and resistance R2, the resistance R2 other ends respectively
It is another that resistance R3, the resistance R4 other ends, triode VT4 colelctor electrodes, triode VT5 colelctor electrodes and power supply VCC, resistance R3 are connected respectively
One end connecting triode VT2 colelctor electrodes.
2. electric intelligent voice system according to claim 1, it is characterised in that the microprocessor uses single-chip microcomputer
AT89C51。
3. electric intelligent voice system according to claim 1, it is characterised in that the sound-compound-circuit uses TTS
Sound-compound-circuit.
4. electric intelligent voice system according to claim 1, it is characterised in that the RFID identification circuit uses chip
EM4095 is controlled.
5. electric intelligent voice system according to claim 1, it is characterised in that the power supply VCC voltages are 12V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710556100.6A CN107346961A (en) | 2017-07-01 | 2017-07-01 | A kind of electric intelligent voice system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710556100.6A CN107346961A (en) | 2017-07-01 | 2017-07-01 | A kind of electric intelligent voice system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107346961A true CN107346961A (en) | 2017-11-14 |
Family
ID=60257987
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710556100.6A Pending CN107346961A (en) | 2017-07-01 | 2017-07-01 | A kind of electric intelligent voice system |
Country Status (1)
| Country | Link |
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| CN (1) | CN107346961A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252126A (en) * | 2021-05-21 | 2021-08-13 | 中国水利水电科学研究院 | Terminal system capable of identifying personal water consumption |
-
2017
- 2017-07-01 CN CN201710556100.6A patent/CN107346961A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252126A (en) * | 2021-05-21 | 2021-08-13 | 中国水利水电科学研究院 | Terminal system capable of identifying personal water consumption |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171114 |
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| WD01 | Invention patent application deemed withdrawn after publication |