CN213398691U

CN213398691U - Sound control universal meter

Info

Publication number: CN213398691U
Application number: CN202022262408.XU
Authority: CN
Inventors: 李昕
Original assignee: Shenzhen Zotek Instruments Co ltd
Current assignee: Shenzhen Zotek Instruments Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-06-08
Anticipated expiration: 2030-10-12

Abstract

The utility model provides a sound control multimeter, which comprises a digital multimeter module with an MCU; still include microphone and speech recognition module, the output of microphone forms speech signal input speech recognition module after signal acquisition circuit gathers, and speech recognition module discerns the speech signal who gathers and converts corresponding control command to and connects the corresponding interface of MCU in the digital multimeter module. The utility model discloses in adopt speech recognition module to change the control command that the universal meter user verbally sent, produce corresponding control command and give digital multimeter's MCU, realize the control to the universal meter, it is more convenient to control.

Description

Sound control universal meter

Technical Field

The utility model relates to an universal meter field, in particular to acoustic control universal meter.

Background

The multimeter is a magnetoelectric instrument with a rectifier and capable of measuring a plurality of electrical parameters such as alternating current, direct current, voltage, resistance and the like. For each electrical quantity, there are typically several ranges. Also called a multipurpose meter or simply a multipurpose meter. The multimeter is composed of a magnetoelectric system ammeter (meter head), a measuring circuit, a selection switch and the like. By changing the selection switch, various electrical parameters can be conveniently measured. The main basis for the circuit calculation is closed circuit ohm's law. Multimeters are of various types and can be selected according to different requirements when in use.

IN order to simplify the operation of the multimeter, a multimeter operated by sound control is provided IN the industry, and the Chinese utility model authorized bulletin document No. CN 205158054U discloses a control circuit of the sound control multimeter, which comprises a battery pack, a microphone, a triode, a singlechip, a level control circuit, a coupling capacitor and a backlight source circuit, wherein the output end of the battery pack is respectively connected with the microphone, the collector of the triode, the input end of the level control circuit and the VDD port of the singlechip, one end of the coupling capacitor is connected with the microphone, the other end of the coupling capacitor is connected with the base of the triode, the CDS port of the singlechip is connected with the output end of the level control circuit, the IN port of the singlechip is connected with the collector of the triode, the emitter of the triode is grounded, one end of the backlight source circuit is connected with the OUT port, and the other end of the backlight circuit and the GND port of the singlechip are both grounded.

The control circuit of utilizing such acoustic control universal meter can control the universal meter and start and close, makes the universal meter operation more convenient, but, such acoustic control universal meter control circuit utilizes the microphone can only gather have or not sound signal, and can not distinguish user's other instructions, and these other instructions still need follow the operating panel of universal meter and go up the input, can not satisfy the user to the demand of full acoustic control universal meter.

SUMMERY OF THE UTILITY MODEL

The utility model discloses other instructions of user can not be distinguished to current acoustic control universal meter's control circuit, and these other instructions still need follow the operating panel of universal meter and go up the input, can not satisfy the user to the demand of full acoustic control universal meter, provide an acoustic control universal meter, adopt speech recognition module discernment user speech instruction.

The utility model discloses realize that its technical purpose technical scheme is: a sound control multimeter comprises a digital multimeter module with an MCU; still include microphone and speech recognition module, the output of microphone forms speech signal input speech recognition module after signal acquisition circuit gathers, and speech recognition module discerns the speech signal who gathers and converts corresponding control command to and connects the corresponding interface of MCU in the digital multimeter module.

Further, in the above acoustic control multimeter: the voice broadcasting system comprises a voice chip, a signal amplifying circuit and a loudspeaker; MCU gathers the high-low level signal of universal meter measured value, converts a set of code that the pronunciation chip can discern after obtaining the measured value signal and connects the pronunciation chip and broadcast through the speaker after signal amplification circuit amplifies.

Further, in the above acoustic control multimeter: still include an intelligent terminal with digital multimeter module communication, including the second speech recognition module on the intelligent terminal, the second speech recognition module utilizes the microphone on the intelligent terminal to gather operator's voice command, converts corresponding control command and sends the MCU in the digital multimeter module through communication.

Further, in the above acoustic control multimeter: the intelligent terminal is a smart phone and is communicated with the digital multimeter module through a Bluetooth communication module.

The utility model discloses in adopt speech recognition module to change the control command that the universal meter user verbally sent, produce corresponding control command and give digital multimeter's MCU, realize the control to the universal meter, it is more convenient to control.

Additionally, the utility model discloses in still provide one kind and carry out voice broadcast's mode with universal meter measuring result, it is more convenient to make the user use.

In addition, an external terminal is adopted to communicate with the universal meter by using Bluetooth communication, so that all operations of the universal meter can be realized, and the universal meter is more convenient to operate.

The present invention will be described in more detail with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a structural block diagram of the sound-controlled multimeter of the present invention.

Fig. 2 is a structural block diagram of embodiment 1 of the present invention.

Detailed Description

This embodiment is an operator utilizes pronunciation to carry out the acoustic control universal meter of control, in the digital universal meter module, increase the acoustic control module, concrete structure is as shown in figure 1, including MCU in the digital universal meter module, realize the measurement function of universal meter, and MCU realizes the universal meter operation control function, general operation function is through the operating panel who operates the universal meter, send operating command for MCU like a button, MCU converts each command into electric signal control universal meter measurement module.

The voice control module includes two modules of sound collection and idea recognition, and sound collection adopts the microphone to convert operator's voice command into the signal of telecommunication, and sound acquisition circuit gathers this signal of telecommunication and arranges in order and form sound signal (pronunciation audio signal), in the speech recognition module, discerns voice audio signal to convert the distinguishable control command of MCU and send MCU, realize the acoustic control to the universal meter. Additionally, the utility model discloses in, still need pass through voice broadcast with measuring result, consequently, still have the voice broadcast module, convert a set of code that voice chip can discern behind the measured value signal in this module and connect voice chip to broadcast through the speaker after signal amplification circuit enlargies. The voice recognition system specifically comprises a voice chip, a signal amplification circuit and a loudspeaker; MCU gathers the high-low level signal of universal meter measured value, converts a set of code that the pronunciation chip can discern after obtaining the measured value signal and connects the pronunciation chip and broadcast through the speaker after signal amplification circuit amplifies.

In some embodiments, the input/output interface of the MCU corresponds to a signal-corresponding pin connected to a liquid crystal display driver chip of the digital multimeter, collects high and low level signals of a multimeter measurement value, and after obtaining the measurement value signal, the MCU converts the measurement value signal into a set of codes recognizable by the voice chip by running an internal program, and after the internal program of the MCU is delayed, the set of codes is transmitted to the voice chip after the value to be measured is stable. The MCU is also connected with a chip selection signal and a data command signal of the liquid crystal display screen driving chip, and the MCU is connected with a clock signal enabling pin of the liquid crystal display screen driving chip to control the time period of transmitting the code of the measured value to the voice chip. In this embodiment, the voice chip may be a chip such as a voice chip with model ML 2860. The corresponding parallel input and output interfaces of the data pin MCU of the voice chip U2 are connected, the codes of the set of multimeter measured values transmitted by the MCU are received, after the set of codes are obtained, the digital-to-analog conversion circuit in the voice chip can convert the set of codes into audio analog signals, and the audio analog signals are amplified by the signal amplification circuit and are broadcasted by the loudspeaker.

Because the current smart phone is very popular, a voice recognition system is basically integrated in the smart phone, and in order to be distinguished from a voice recognition module in a universal meter, the smart phone is called a second voice recognition module here, and the functions of the smart phone can be fully utilized when the universal meter is used.

The voice recognition module is one of many functional modules in present smart mobile phone, and in this embodiment, utilize this module to accept universal meter operation instruction, then convert the instruction into the order that MCU can discern in the universal meter, improve to the universal meter in through bluetooth communication system, MCU utilizes these instruction control universal meter module to realize the measurement function.

Claims

1. A sound control multimeter comprises a digital multimeter module with an MCU; the method is characterized in that: still include microphone and speech recognition module, the output of microphone forms speech signal input speech recognition module after signal acquisition circuit gathers, and speech recognition module discerns the speech signal who gathers and converts corresponding control command to and connects the corresponding interface of MCU in the digital multimeter module.

2. The voice-activated multimeter of claim 1, wherein: the voice broadcasting system comprises a voice chip, a signal amplifying circuit and a loudspeaker; MCU gathers the high-low level signal of universal meter measured value, converts a set of code that the pronunciation chip can discern after obtaining the measured value signal and connects the pronunciation chip and broadcast through the speaker after signal amplification circuit amplifies.

3. The voice-controlled multimeter of claim 1 or claim 2, wherein: still include an intelligent terminal with digital multimeter module communication, including the second speech recognition module on the intelligent terminal, the second speech recognition module utilizes the microphone on the intelligent terminal to gather operator's voice command, converts corresponding control command and sends the MCU in the digital multimeter module through communication.

4. The voice-activated multimeter of claim 3, wherein: the intelligent terminal is a smart phone and is communicated with the digital multimeter module through a Bluetooth communication module.