The content of the invention
It is an object of the present invention in view of the above-mentioned problems, provide a kind of multi-function multimeter with voice control function.
The present invention also aims in view of the above-mentioned problems, provide a kind of by above-mentioned more with voice control functionThe measuring method that function universal meter is implemented.
The used to achieve the above object technical solution of the present invention is：
A kind of multi-function multimeter with voice control function, including universal meter body, the universal meter body includeSpeech recognition control system and central control system, the speech recognition control system include Audio Input Modules, audio identificationControl module and dio Output Modules, the Audio Input Modules receive, processing voice command, and the voice command is transferred toThe audio identification control module, which is simultaneously decoded into coded voice signal, by communicatingInterface is transferred to the central control system, and analog channel switching switch is connected with the central control system, the analog channelSwitching switch corresponds to the coded voice signal and is switched to corresponding function gear, and the dio Output Modules are received by the centerCoded voice signal that control system is sent and the instruction voice for exporting the corresponding coded voice signal.
Preferably, the Audio Input Modules include power control circuit, the power control circuit include resistance R1,R4, R5, capacitance C18, C20, C24, C21, triode Q1, the emitter of the triode Q1 are connected with described resistance R4 one end,The resistance R4 other ends are grounded, and the resistance R5 and the capacitance C18 are parallel with the collector of triode Q1, base stage, thisThe capacitance C21 is in series with the base stage of triode Q1, the other end of capacitance C21 is connected with audio input device, capacitance C21The first branch, the second branch are provided between the audio input device, the capacitance C20 is connected with the first branch, thisThe resistance R1 is connected with two branches, the resistance R1 other ends are parallel with the voltage end of the audio input device and the capacitanceC24。
Preferably, the Audio Input Modules include electric source filter circuit, the electric source filter circuit include resistance R28,R2, R3, capacitance C26, C25 and electrolytic capacitor C27, the collector of the triode Q1 are connected with the resistance R3, resistance R3The other end on be connected with the 3rd branch, the 4th branch, the 3rd branch is connected with the voltage end of the audio input device, shouldThe capacitance C25 is connected between 3rd branch and the voltage end of the audio input device, one end ground connection of capacitance C25 is describedDescribed resistance R2, R28 are in series with 4th branch, one end of resistance R28 and the biased electrical press bond of the audio input device,It is respectively arranged with the capacitance C26 and electrolytic capacitor C27 between the resistance R2, R28, capacitance C26, electrolytic capacitor C27The other end is grounded.
Preferably, the dio Output Modules include audio output drive circuit, which includesPower amplifier chips, capacitance C1, C7, C2, C5, inductance L1, L2, output loudspeaker, 15 pins of the power amplifier chips are serially connected with the electricityFeel L1 and be connected with the output loudspeaker cathode, 16 pins of the power amplifier chips are connected with described capacitance C1 one end, the capacitanceThe other end of C1 is connected with 15 pins of the power amplifier chips, 22 pins of the power amplifier chips be serially connected with the inductance L2 and with instituteThe anode connection of output loudspeaker is stated, 21 pins of the power amplifier chips are connected with described capacitance C7 one end, the other end of capacitance C7It is connected with 22 pins of the power amplifier chips, in described described capacitance C2, C5 for exporting and being parallel with loudspeaker and mutually concatenating, the capacitanceC2, C5 indirectly.
Preferably, the communication interface includes UART interface, I2C interface and SPI interface, the UART interface, I2C interfaceIt is used between the audio identification control module and the central control system mutually transmission coded voice signal with SPI interface.
Preferably, the analog channel switching switch includes relay drive circuit and relay group, which drivesDynamic circuit is electrically connected with the relay group, which is electrically connected with the central control system.
Preferably, the universal meter body is further included for showing identification phonetic order and sending the LCD of phonetic orderDisplay module, the LCD display module are electrically connected with the central control system.
The measuring method that a kind of above-mentioned multi-function multimeter with voice control function is implemented, it comprises the following steps：
Step 1：Multi-function multimeter and speech recognition control system are opened, when starting measurement, operator says to be measuredThe identification of function phonetic order of amount；
Step 2：Speech recognition control system receive capabilities, which identify phonetic order and send, confirms phonetic order information, treatsIt is corresponding by central control system control analog channel switching switch switching after operator reaffirms identification of function phonetic orderFunction gear；
Step 3：It is measured, operator obtains measurement result.
Preferably, in the step 2, speech recognition control system is set before reaffirming identification of function phonetic orderPhonetic order acknowledging time is equipped with, in phonetic order acknowledging time, speech recognition control system is not received by correct confirmationInstruction, then multi-function multimeter returns to former working status；Phonetic order acknowledging time is adjusted in the central control system.
Preferably, it includes being used to show identification phonetic order and sends the LCD display module of phonetic order, the LCDDisplay module is electrically connected with the central control system；
In the step 3, LCD display module shows measurement result.
Beneficial effects of the present invention are：The present invention increases speech recognition control system, passes through language on the basis of universal meterSound order controls universal meter handoff functionality gear, while offering convenience to operator, improves measurement efficiency, avoids because manually wrongThe security risk for switching gear by mistake and producing；And this voice measuring method can guarantee that the security of aerological measurement personnel.
Below in conjunction with the accompanying drawings with embodiment, the present invention is further described.
Embodiment：As shown in Figures 1 to 4, the present invention is a kind of multi-function multimeter with voice control function, includingUniversal meter body, the universal meter body include speech recognition control system and central control system, the speech recognition controlledSystem includes Audio Input Modules, audio identification control module and dio Output Modules, and the Audio Input Modules receive, processingVoice command, and the voice command is transferred to the audio identification control module, the audio identification control module voice lifeMake and be decoded into coded voice signal, the central control system is transferred to by communication interface, is connected in the central control systemThere is analog channel switching switch, which corresponds to the coded voice signal and be switched to corresponding function shelvesPosition, the dio Output Modules receive the coded voice signal sent by the central control system and export the corresponding voice codingThe instruction voice of signal.
In the present embodiment, the Audio Input Modules include power control circuit, the power control circuit include resistance R1,R4, R5, capacitance C18, C20, C24, C21, triode Q1, the emitter of the triode Q1 are connected with described resistance R4 one end,The resistance R4 other ends are grounded, and the resistance R5 and the capacitance C18 are parallel with the collector of triode Q1, base stage, thisThe capacitance C21 is in series with the base stage of triode Q1, the other end of capacitance C21 is connected with audio input device, capacitance C21The first branch, the second branch are provided between the audio input device, the capacitance C20 is connected with the first branch, thisThe resistance R1 is connected with two branches, the resistance R1 other ends are parallel with the voltage end of the audio input device and the capacitanceC24。
In the present embodiment, the Audio Input Modules include electric source filter circuit, which includes resistanceR28, R2, R3, capacitance C26, C25 and electrolytic capacitor C27, the collector of the triode Q1 are connected with the resistance R3, the electricityHinder and the 3rd branch, the 4th branch are connected with the other end of R3, the voltage end of the 3rd branch and the audio input device connectsConnect, the capacitance C25 is connected between the 3rd branch and the voltage end of the audio input device, one end ground connection of capacitance C25,Described resistance R2, R28 are in series with 4th branch, one end of resistance R28 and the biased electrical pressure side of the audio input deviceConnection, is respectively arranged with the capacitance C26 and electrolytic capacitor C27, capacitance C26, electrolytic capacitor between the resistance R2, R28The other end ground connection of C27.
In the present embodiment, the dio Output Modules include audio output drive circuit, the audio output drive circuit bagPower amplifier chips, capacitance C1, C7, C2, C5, inductance L1, L2, output loudspeaker are included, 15 pins of the power amplifier chips are serially connected with describedInductance L1 and with it is described output loudspeaker cathode be connected, 16 pins of the power amplifier chips are connected with described capacitance C1 one end, the electricityThe other end for holding C1 is connected with 15 pins of the power amplifier chips, 22 pins of the power amplifier chips be serially connected with the inductance L2 and withThe output loudspeaker anode connection, 21 pins of the power amplifier chips are connected with described capacitance C7 one end, and capacitance C7's is anotherEnd is connected with 22 pins of the power amplifier chips, in described described capacitance C2, C5 for exporting and being parallel with loudspeaker and mutually concatenating, the electricityHold C2, C5 indirectly.
In the present embodiment, the communication interface includes UART interface, I2C interface and SPI interface, and the UART interface, I2C connectMouth and SPI interface are used between the audio identification control module and the central control system mutually transmission voice coding letterNumber.
In the present embodiment, the analog channel switching switch includes relay drive circuit and relay group, the relayDrive circuit is electrically connected with the relay group, which is electrically connected with the central control system.
In the present embodiment, the universal meter body is further included for showing identification phonetic order and sending phonetic orderLCD display module, the LCD display module are electrically connected with the central control system；LCD display module shows the language currently identifiedThe phonetic word that sound and instrument are sent, easy to hearing, bad operator more intuitively reads measurement result.
The measuring method that a kind of above-mentioned multi-function multimeter with voice control function is implemented, it comprises the following steps：
Step 1：Multi-function multimeter and speech recognition control system are opened, when starting measurement, operator says to be measuredThe identification of function phonetic order of amount；
Step 2：Speech recognition control system receive capabilities, which identify phonetic order and send, confirms phonetic order information, treatsIt is corresponding by central control system control analog channel switching switch switching after operator reaffirms identification of function phonetic orderFunction gear；
Step 3：It is measured, operator obtains measurement result.
In the present embodiment, in the step 2, speech recognition control system is reaffirmed before identification of function phonetic orderPhonetic order acknowledging time is provided with, in phonetic order acknowledging time, speech recognition control system is not received by correct trueRecognize instruction, then multi-function multimeter returns to former working status；When adjusting phonetic order confirmation in the central control systemBetween.
In the present embodiment, it includes being used to show identification phonetic order and sends the LCD display module of phonetic order, shouldLCD display module is electrically connected with the central control system；
In the step 3, LCD display module shows measurement result.
The present invention increases speech recognition control system on the basis of universal meter, controls universal meter to cut by voice commandFunction gear is changed, while offering convenience to operator, measurement efficiency is improved, avoids because of manual errors switching gear and producingSecurity risk；And this voice measuring method can guarantee that the security of aerological measurement personnel.
The efficient voice species of speech recognition control system：
First, functional switch identification phonetic order species：
1st, DC voltage shelves：Chinese speech " DC voltage ", " DC voltage shelves "；English voice：“DC voltage”.
2nd, alternating voltage shelves：Chinese speech " alternating voltage ", " alternating voltage shelves "；English voice：“AC voltage”.
3rd, direct current millivolt shelves：Chinese speech " direct current millivolt ", " direct current millivolt shelves "；English voice：“DC Millivolt”.
4th, millivolt shelves are exchanged：Chinese speech " exchange millivolt ", " exchange millivolt shelves "；English voice：“AC Millivolt”.
5th, DC current shelves：Chinese speech " DC current ", " DC current shelves "；English voice：“DC current”.
6th, alternating current shelves：Chinese speech " alternating current ", " alternating current shelves "；English voice：“AC current”.
7th, direct current milliampere shelves：Chinese speech " direct current milliampere ", " direct current milliampere shelves "；English voice：“DCmilliampere”。
8th, milliampere shelves are exchanged：Chinese speech " exchange milliampere ", " exchange milliampere shelves "；English voice：“ACmilliampere”。
9th, direct current microampere shelves：Chinese speech " direct current microampere ", " direct current microampere shelves "；English voice：“DCmilliampere”。
10th, microampere shelves are exchanged：Chinese speech " exchange microampere ", " exchange microampere shelves "；English voice：“ACmilliampere”。
11st, resistance grade：Chinese speech " resistance ", " resistance grade "；English voice：“resistance”.
12nd, shelves are turned on：Chinese speech " conducting ", " conducting shelves "；English voice：“Continuity”.
13rd, diode shelves：Chinese speech " diode ", " diode shelves "；English voice：“diode”.
14th, capacitance shelves：Chinese speech " capacitance ", " capacitance shelves "；English voice：“Capacitance”.
15th, frequency shelves：Chinese speech " frequency ", " frequency shelves "；English voice：“frequency”.
16th, duty cycle shelves：Chinese speech " duty cycle ", " duty cycle shelves "；English voice：“duty cycle”.
17th, triode shelves：Chinese speech " triode ", " triode shelves "；English voice：“Triode”.
18th, LOZ grades：Chinese speech " low-resistance measurement ", " low-resistance measurement shelves "；English voice：“LOZ”.
2nd, keypress function group identification phonetic order species：
1st, range function button：Chinese speech " range ", " range button "；English voice：“RANGE”.
2nd, maximum/minimum button：
Chinese speech " minimum ", " minimum button "；English voice：“MIN”.
Chinese speech " maximum ", " maximum button "；English voice：“MAX”.
3rd, relative value button:Chinese speech " relative value ", " relative value button "；English voice：“REL”、“Relative”.
4th, peak value button:Chinese speech " peak value ", " peak value button "；English voice：“PEAK”.
5th, HOLD buttons：Chinese speech " holding ", " holding button "；English voice：“HOLD”.
6th, voice and manual function switching key：
Open voice system：Chinese speech " voice ", " voice button "；English voice：“phonetic”.
Open manual operation function：Chinese speech " manual ", " manual key "；English voice：“Mechanics”.
7th, open/with closing backlight：
Open backlight：Chinese speech " unlatching backlight ", " unlatching backlight key "；English voice：“Backlight ON”.
Close backlight：Chinese speech " closing backlight ", " closing backlight key "；English voice：“BacklightOFF”。
8th, selection key：Chinese speech " selection ", " selection key "；English voice：“Select”.
3rd, phonetic order species is confirmed：
1st, voice is determined：Chinese speech " definite "；English voice：“OK”.
2nd, negate voice：Chinese speech " cancellation "；English voice：“Cancel”.
The above described is only a preferred embodiment of the present invention, not make limitation in any form to the present invention.AppointWhat those skilled in the art, without departing from the scope of the technical proposal of the invention, all using the side of the disclosure aboveMethod and technology contents make technical solution of the present invention many possible changes and modifications, or are revised as the equivalent reality of equivalent variationsApply example.Therefore every content without departing from technical solution of the present invention, the equivalent change that shape, construction and principle according to the present invention are madeChange, should all be covered by protection scope of the present invention.