CN203786508U - Small vocabulary voice receiving and processing circuit - Google Patents

Abstract

A small vocabulary voice receiving and processing circuit comprises a microphone MIC positive pole input terminal MIC+, a microphone MIC negative pole input terminal MIC -, a microphone MIC circuit, a microprocessor and multiple paths of voice control signal output terminals. Each one of vocabulary voice simulation signals input through the two ends of the microphone MIC positive pole input terminal MIC+ and the microphone MIC negative pole input terminal MIC - is input into an A/D port line of the microprocessor through the microphone MIC circuit and is processed and identified, each one of I/O port lines of the microprocessor corresponds to one vocabulary voice simulation signal to output a low-level or high-level voice control signal, and voice control signal output I/O port lines of the microprocessor are connected with the multiple paths of voice control signal output terminals in a one-to-one mode. The small vocabulary voice receiving and processing circuit can be conveniently combined with an intelligent control device to replace keys and can control the device to operate by means of different vocabulary voice commands of a user.

Description

A kind of little vocabulary phonetic incepting treatment circuit

Technical field

The utility model relates to a kind of little vocabulary phonetic incepting treatment circuit.

Background technology

Existing intelligent control device, in the situation that function button is few, key control circuit is often designed to: several buttons, and one end all connects button common port, and the other end connects the I/O mouth of single-chip microcomputer one to one, namely: an I/O mouth of single-chip microcomputer only connects a button, like this, touch certain function button, the corresponding I/O mouth of single-chip microcomputer is input low level or high level button control signal, single-chip microcomputer is according to the button control signal of input, and opertaing device moves.

Existing intelligent control device, the types of functionality button on need to shake-up equipment carrys out opertaing device operation.Man-machine interaction mode is single.

Summary of the invention

The technical problems to be solved in the utility model, is just to provide a kind of little vocabulary phonetic incepting treatment circuit, can be attached to easily in the intelligent control device described in background technology, replaces button, carrys out opertaing device operation by user's different vocabulary voice commands.

For solving the problems of the technologies described above, the technical scheme that the utility model provides is as follows:

A kind of little vocabulary phonetic incepting treatment circuit, comprise the sub-MIC+ of microphone MIC electrode input end and the sub-MIC-of negative input, microphone MIC circuit, microprocessor and multi-path voice control signal lead-out terminal, many vocabulary voice analog signals of the sub-MIC+ of described microphone MIC electrode input end and the input of the sub-MIC-of negative input two ends, its each A/D mouth line through microphone MIC circuit input microprocessor also carries out processing and identification, many I/O mouth lines of microprocessor, the corresponding vocabulary voice analog signal of its each I/O mouth line, output low level or high level voice control signal, many voice control signal output I/O mouth lines of this microprocessor connect multi-path voice control signal lead-out terminal one to one.

When the sub-MIC+ of microphone MIC electrode input end of the present utility model and the sub-MIC-of negative input connect microphone MIC, microphone MIC often receives a vocabulary voice command, just export a vocabulary voice analog signal, the corresponding I/O mouth line of microprocessor, with regard to output low level or high level voice control signal, is exported by multi-path voice control signal lead-out terminal.

In practical application, multi-path voice control signal lead-out terminal is connected to the button control signal output terminal of the key control circuit of intelligent control device, the namely keys of single chip microcomputer control signal of intelligent control device input I/O mouth, visible, the button control signal input I/O mouth of single-chip microcomputer, also be voice control signal input I/O mouth simultaneously, there are how many function buttons, just design how many voice commands, corresponding how many roads voice control signal lead-out terminal, key commands and voice command are suitable, corresponding one by one.

Also can comprise public terminal COM, this public terminal COM connects an I/O mouth line of microprocessor.In practical application, public terminal COM connects the button common port of key control circuit, so that whether effectively the button of microprocessor control key control circuit.

Also can comprise that speech recognition starts terminal VR, this speech recognition starts the I/O mouth line that terminal VR connects microprocessor.Also can comprise vice activation button S4, this vice activation button S4 one end ground connection or connect power supply, the other end connects speech recognition and starts terminal VR, carries out, in voice-operated situation, the utility model not being started not needing, and is convenient to power saving.

Due to multi-path voice control signal lead-out terminal of the present utility model, the corresponding vocabulary voice command in each road, output low level or high level voice control signal, and the key control circuit of intelligent control device described in background technology, its button control signal is all low level or high level signal.Therefore can easily the utility model be attached in the intelligent control device described in background technology, and without its Single Chip Microcomputer (SCM) program of change, greatly simplify design.Certainly, also the utility model can be regarded as to voice key control circuit, be applied in other intelligent control device.

Brief description of the drawings

Fig. 1 is embodiment circuit block diagram;

Fig. 2 is embodiment circuit theory diagrams;

Fig. 3 is the structural drawing of microprocessor JT63;

Fig. 4 is the external pin figure after embodiment encapsulates;

Fig. 5 is that embodiment applies to one of circuit theory diagrams of remote control circuitry;

Fig. 6 is two of the embodiment circuit theory diagrams that apply to remote control circuitry;

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in detail.

As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, mono-kind little vocabulary phonetic incepting treatment circuit of embodiment U3, comprise the sub-MIC+ of microphone MIC electrode input end and the sub-MIC-of microphone MIC negative input, microphone MIC circuit, microprocessor, 8 voice control signal lead-out terminal KEY1～8, roads, electrify restoration circuit, external crystal oscillation circuit, PLL circuit and ICE burning interface, respectively from 8 vocabulary voice analog signals of the sub-MIC+ of microphone MIC electrode input end and the sub-MIC-of microphone MIC negative input two ends input, its each A/D mouth line through microphone MIC circuit input microprocessor also carries out processing and identification, 8 I/O mouth lines of microprocessor, the corresponding vocabulary voice analog signal of its each I/O mouth line, output low level or high level voice control signal, 8 voice control signal output I/O mouth lines of this microprocessor connect 8 road voice control signal lead-out terminal KEY1-8 one to one.

As shown in Figure 4, after embodiment U3 encapsulation, drawing external pin, is power supply pin BAT+ and ground GND, speech recognition startup pin VR, the sub-MIC+ of microphone MIC electrode input end and the sub-MIC-of microphone MIC negative input, 8 voice control signal lead-out terminal KEY1～8, road and public pin COM.Speech recognition starts the I/O mouth line that pin VR connects microprocessor.The sub-MIC+ of microphone MIC electrode input end is connected the sound signal input pin of microphone MIC circuit with the sub-MIC-of microphone MIC negative input.8 voice control signal lead-out terminal KEY1～8, roads connect 8 I/O mouth lines of microprocessor, connect 8 voice control signal output I/O mouth lines of microprocessor.Public pin COM connects an I/O mouth line of microprocessor.

As shown in Figure 2 and Figure 3, the microprocessor of embodiment U3 adopts JT63 microprocessor, and J1 is burning program interface, and R3 pull down resistor plays the effect of stabilization signal.Crystal oscillator Q1, capacitor C 1 and C2 form external crystal oscillation circuit, for generation of clock source signals.PLL phase-locked loop circuit comprises resistance R 1, capacitor C 3 and capacitor C 4, after resistance R 1 is connected with capacitor C 4, more in parallel with capacitor C 3, one end is connected with the PLL input end VCOIN of JT63 microprocessor, other end ground connection.PLL phase-locked loop circuit plays frequency multiplication effect, makes microprocessor obtain the clock frequency needing.Resistance R 2 and capacitor C 5 form the electrify restoration circuit of microprocessor.The audio frequency input that microphone MIC circuit is voice command, gathers through this circuit, is transported to JT63 microprocessor and carries out signal amplification and carry out processing and identification, and the recognition result obtaining characterizes through the I/O of JT63 microprocessor mouth line outputs level signals.AGC low-pass filter external circuit, feedback circuit and microphone MIC voice collecting circuit that this microphone MIC circuit comprises JT63 microprocessor, the AGC low-pass filter external circuit of this JT63 microprocessor comprises resistance R 5 and capacitor C 9, resistance R 5 and capacitor C 9 parallel connections, the automatic gain control end AGC of one termination JT63 microprocessor, other end ground connection, feedback circuit comprises capacitor C 13, C16 and resistance R 7, capacitor C 13 is connected with resistance R 7, capacitor C 13 ends are connected with the amplifier of microphone output terminal MICOUT of JT63 microprocessor, after resistance R 7 termination shunt capacitance C16, are connected with the note amplifier negative input OPI of JT63 microprocessor, microphone MIC voice collecting circuit comprises resistance R 4, R6, R8 and capacitor C 10, C14, C15, resistance R 4 and resistance R 6 are connected, one end is connected with the microphone power end VMIC of JT63 microprocessor, public termination shunt capacitance C10, bypass filtering clutter, the sub-MIC+ of another termination microphone MIC electrode input end, the sub-MIC+ of this microphone MIC electrode input end is coupled to the positive terminal MICP of JT63 microprocessor amplifier of microphone through capacitor C 14, the sub-MIC-of microphone MIC negative input meets bypass resistance R8 to ground, filtering low frequency clutter, the sub-MIC-of this microphone MIC negative input is coupled to the negative pole end MICN of JT63 microprocessor amplifier of microphone through capacitor C 15.

As shown in Figure 5, a kind of circuit theory diagrams that the utility model embodiment U3 applies to telepilot, the power supply pin BAT+ of embodiment U3 meets battery VDD3V, the sub-MIC+ of microphone MIC electrode input end and is connected microphone MIC with the sub-MIC-of microphone MIC negative input, comprise vice activation button S4, this vice activation button S4 one end ground connection, the other end connects speech recognition and starts pin VR, when pressing vice activation button S4, produce a low level signal, the microprocessor of embodiment U3 is received this signal, triggers speech identifying function.The key control circuit of telepilot comprises 8 button S1, S2, S3, S5, S6, S7, S8, S9, one end of these 8 buttons connects button common port, this button common port connects the public pin COM of embodiment U3, the other end connects 8 button control signal input I/O mouths of telepilot single-chip microcomputer U1 one to one, 8 voice control signal lead-out terminal KEY1～8, road of embodiment U3 connect 8 button control signal input I/O mouths of telepilot single-chip microcomputer U1 equally one to one, visible, 8 buttons corresponding 8 vocabulary voice commands one by one.When touching any button of key control circuit, the I/O mouth input low level button control signal of this button of connection of telepilot single-chip microcomputer U1, when microphone MIC receives arbitrary voice command, embodiment U3 to voice control signal lead-out terminal output low level voice control signal that should voice command, this voice control signal is inputted the I/O mouth of the telepilot single-chip microcomputer U1 that corresponding button connects.Visible, the button control signal input I/O mouth of telepilot single-chip microcomputer U1, also be voice control signal input I/O mouth simultaneously, article 8, vocabulary voice command corresponding 8 buttons one by one, voice command and key commands are suitable, and telepilot single-chip microcomputer U1 input low level button control signal or low level voice control signal are also processed.

One end of 8 button S1, S2 of key control circuit, S3, S5, S6, S7, S8, S9 connects button common port, and this button common port connects the public pin COM of embodiment U3, be button in order to control key control circuit whether effectively.Program by the microprocessor for embodiment U3, after powering on, embodiment U3 is in nonrecognition state, public pin COM output low level, 8 voice control signal lead-out terminal KEY1～8, roads are suspended state, single-chip microcomputer U1 reads the state of 8 button S1, S2 on I/O mouth line, S3, S5, S6, S7, S8, S9 in the usual way, and processes.When vice activation button S4 connects, produce low level vice activation signal, public pin COM becomes suspended state, it is invalid that 8 button S1, S2, S3, S5, S6, S7, S8, S9 become, now, embodiment U3 starts working, by microphone MIC, when recognizing after " order ", corresponding voice control signal lead-out terminal output low level voice control signal is to single-chip microcomputer U1, single-chip microcomputer U1 reads the state of 8 voice control signal lead-out terminal KEY1～8, road on I/O mouth in the usual way, and processes.After vice activation button S4 disconnects, public pin COM recovers output low level, 8 voice control signal lead-out terminal KEY1～8, roads are suspended state, and single-chip microcomputer U1 reads the state of 8 button S1, S2 on I/O mouth, S3, S5, S6, S7, S8, S9 in the usual way, and processes.

The speech data of input is carried out processing and identification by the microprocessor of embodiment U3, convert the recognition result obtaining to level output, an I/O mouth output low level of the corresponding microprocessor of each vocabulary voice command, be equivalent to the corresponding button of pressing key control circuit, telepilot single-chip microcomputer U1 detects the low level signal of corresponding ports and processes.

Fig. 5 circuit, the voice control of telepilot and by key control, by vice activation button S4, selects one and carries out.

Above-mentioned voice control signal and button control signal are Low level effectives, and slightly modified can be also that high level is effective.

Due to 8 voice control signal lead-out terminal KEY1～8, road of embodiment U3, the corresponding vocabulary voice command in its each road, 8 voice control signal lead-out terminal KEY1～8, roads connect 8 I/O mouth lines of telepilot single-chip microcomputer one to one, and 8 buttons of key control circuit connect 8 identical I/O mouth lines of telepilot single-chip microcomputer one to one, 8 buttons corresponding 8 vocabulary voice commands one by one, voice control signal is identical with button control signal, be low level or high-level control signal, the identical I/O mouth line of input telepilot single-chip microcomputer, therefore can easily the utility model embodiment U3 be increased in telepilot, become containing voice-operated telepilot, the Single Chip Microcomputer (SCM) program of former telepilot need not change, greatly simplify design.

As shown in Figure 6, be the second circuit theory diagrams that the utility model embodiment U3 applies to telepilot, compare with Fig. 5, the button common end grounding of the key control circuit of Fig. 6, all the other are identical with Fig. 5.If it is effective that voice control signal and button control signal are designed to high level, the button common port of key control circuit need connect power supply.

Due to the button common end grounding of the key control circuit of Fig. 6, therefore key control circuit is not subject to the impact of the utility model embodiment U3,8 button S1, S2, S3, S5, S6, S7, S8, S9 maintain effective status always.

The voice control of Fig. 6 circuit and by key control, can both effectively simultaneously, also can pass through vice activation button S4, close voice control.If wish that voice control is effective all the time, the speech recognition of the utility model embodiment U3 can be started to the direct ground connection of pin VR.

Can also regard the utility model embodiment U3 as voice key control circuit, be applied in other intelligent control circuit.

Claims (8)

1. one kind little vocabulary phonetic incepting treatment circuit, it is characterized in that: comprise the sub-MIC+ of microphone MIC electrode input end and the sub-MIC-of negative input, microphone MIC circuit, microprocessor and multi-path voice control signal lead-out terminal, many vocabulary voice analog signals of the sub-MIC+ of described microphone MIC electrode input end and the input of the sub-MIC-of negative input two ends, its each A/D mouth line through microphone MIC circuit input microprocessor also carries out processing and identification, many I/O mouth lines of microprocessor, the corresponding vocabulary voice analog signal of its each I/O mouth line, output low level or high level voice control signal, many voice control signal output I/O mouth lines of this microprocessor connect multi-path voice control signal lead-out terminal one to one.

2. phonetic incepting treatment circuit according to claim 1, is characterized in that: comprise public terminal COM, this public terminal COM connects an I/O mouth line of microprocessor.

3. phonetic incepting treatment circuit according to claim 1, is characterized in that: comprise that speech recognition starts terminal VR, this speech recognition starts the I/O mouth line that terminal VR connects microprocessor.

4. phonetic incepting treatment circuit according to claim 3, is characterized in that: comprise vice activation button S4, and this vice activation button S4 one end ground connection or connect power supply, the other end connects speech recognition and starts terminal VR.

5. phonetic incepting treatment circuit according to claim 1, it is characterized in that: described microprocessor adopts JT63 microprocessor, AGC low-pass filter external circuit, feedback circuit and microphone MIC voice collecting circuit that described microphone MIC circuit comprises JT63 microprocessor.

6. phonetic incepting treatment circuit according to claim 5, it is characterized in that: the AGC low-pass filter external circuit of described JT63 microprocessor comprises resistance R 5 and capacitor C 9, resistance R 5 and capacitor C 9 parallel connections, the automatic gain control end AGC of a termination JT63 microprocessor, other end ground connection, described feedback circuit comprises capacitor C 13, C16 and resistance R 7, capacitor C 13 is connected with resistance R 7, capacitor C 13 ends are connected with the amplifier of microphone output terminal MICOUT of JT63 microprocessor, after resistance R 7 termination shunt capacitance C16, are connected with the note amplifier negative input OPI of JT63 microprocessor, described microphone MIC voice collecting circuit comprises resistance R 4, R6, R8 and capacitor C 10, C14, C15, resistance R 4 and resistance R 6 are connected, one end is connected with the microphone power end VMIC of JT63 microprocessor, public termination shunt capacitance C10, the sub-MIC+ of another termination microphone MIC electrode input end, the sub-MIC+ of this microphone MIC electrode input end is coupled to the positive terminal MICP of JT63 microprocessor amplifier of microphone through capacitor C 14, the sub-MIC-of microphone MIC negative input meets bypass resistance R8 to ground, the sub-MIC-of this microphone MIC negative input is coupled to the negative pole end MICN of JT63 microprocessor amplifier of microphone through capacitor C 15.

7. phonetic incepting treatment circuit according to claim 5, is characterized in that: comprise the PLL phase-locked loop circuit that connects JT63 microprocessor.

8. phonetic incepting treatment circuit according to claim 7, it is characterized in that: described PLL phase-locked loop circuit comprises resistance R 1, capacitor C 3 and capacitor C 4, after resistance R 1 is connected with capacitor C 4, in parallel with capacitor C 3 again, one end is connected with the PLL input end VCOIN of JT63 microprocessor, other end ground connection.