阅读说明：本技术 基于声音的方向距离辨识装置及其方向距离辨识方法 (Sound-based direction and distance identification device and direction and distance identification method thereof ) 是由 孙重羽 张剑平 于 2021-06-29 设计创作，主要内容包括：本发明公开了一种基于声音的方向距离辨识装置及其方向距离辨识方法,基于声音的方向距离辨识装置包括：声音采集模块,声音采集模块包括声音采集矩阵板,声音采集矩阵板的四周均布有多个声音采集器,以用于获取声音信号并将声音信号传输至声音处理模块；声音处理模块,声音处理模块用于接收并处理来自声音采集模块的声音信号,以将声音信号转换为方向数据和/或距离数据,并将方向数据和/或距离数据同时传输给网络传输模块和显示模块；网络传输模块,网络传输模块用于将方向数据和/或距离数据传输至云网络；以及显示模块,显示模块用于展示方向数据和/或距离数据；声音处理模块同时与声音采集模块、网络传输模块、和显示模块通信连接。(The invention discloses a direction and distance identification device based on sound and a direction and distance identification method thereof, wherein the direction and distance identification device based on sound comprises: the sound acquisition module comprises a sound acquisition matrix plate, and a plurality of sound collectors are uniformly distributed on the periphery of the sound acquisition matrix plate and used for acquiring sound signals and transmitting the sound signals to the sound processing module; the sound processing module is used for receiving and processing the sound signals from the sound acquisition module, converting the sound signals into direction data and/or distance data, and simultaneously transmitting the direction data and/or the distance data to the network transmission module and the display module; the network transmission module is used for transmitting the direction data and/or the distance data to the cloud network; the display module is used for displaying the direction data and/or the distance data; the sound processing module is in communication connection with the sound acquisition module, the network transmission module and the display module.)

1. A sound-based direction-distance recognizing apparatus, comprising:

the voice acquisition module comprises a voice acquisition matrix plate, and a plurality of voice collectors are uniformly distributed on the periphery of the voice acquisition matrix plate and used for acquiring voice signals and transmitting the voice signals to the voice processing module;

the sound processing module is used for receiving and processing the sound signal from the sound acquisition module, converting the sound signal into direction data and/or distance data, and simultaneously transmitting the direction data and/or the distance data to the network transmission module and the display module;

a network transmission module for transmitting the direction data and/or the distance data to a cloud network; and

a display module for displaying the direction data and/or the distance data;

the sound processing module is in communication connection with the sound acquisition module, the network transmission module and the display module at the same time.

2. The sound-based directional distance identification device according to claim 1, characterized in that the sound collection matrix board is configured as a microphone matrix board and/or the sound collector is configured as a microphone.

3. The apparatus according to claim 1, wherein the sound processing module comprises a signal amplifier, a filter, an analog-to-digital conversion circuit, and a core motherboard, an input terminal of the signal amplifier is connected to an output terminal of the sound acquisition module as an input terminal of the sound processing module, an output terminal of the signal amplifier is connected to an input terminal of the filter, an output terminal of the filter is connected to an input terminal of the analog-to-digital converter, an output terminal of the analog-to-digital converter is connected to the core motherboard, and the core motherboard is connected to the display module and the network transmission module;

the signal amplifier is configured to amplify the sound signal and transmit the sound signal to the filter, the filter is configured to filter the amplified sound signal and transmit the sound signal to the analog-to-digital conversion circuit, the analog-to-digital conversion circuit is configured to convert the filtered sound signal into a digital signal and transmit the digital signal to the core motherboard, and the core motherboard processes the digital signal to form the direction data and/or the distance data.

4. The sound-based direction and distance recognition device of claim 1, wherein the display module comprises a display screen, and the display screen is connected to the sound processing module.

5. The sound-based direction and distance recognition device according to any one of claims 1-4, further comprising a storage module connected to the sound processing module for storing the direction data and/or the distance data.

6. The sound-based directional distance recognition device of claim 5, wherein the storage module is configured as a memory.

7. A direction and distance identification method using the sound-based direction and distance identification apparatus according to any one of claims 1 to 6, wherein the direction and distance identification method comprises:

s1: collecting a sound signal by using a sound collection module;

s2: amplifying the sound signal to obtain an amplified sound signal;

s3: carrying out filtering operation on the amplified sound signal to obtain a filtered signal;

s4: performing analog-to-digital conversion on the filtered signal to obtain a digital signal;

s5: obtaining the direction data and/or the distance data according to the digital signals;

s6: and simultaneously transmitting the direction data and/or the distance data to the network transmission module, the display module and the storage module.

8. The method for identifying direction and distance according to claim 7, wherein the step S5 comprises the following sub-steps:

s51: carrying out filtering operation on the digital signal to obtain a filtered digital signal;

s52: when the filtered digital signal is a preset signal, the step S53 is entered;

s53: analyzing the collection direction of the filtered digital signal, and calculating the distance between the sound signal generation point and the sound collection module to obtain the direction data and/or the distance data.

Technical Field

The invention relates to the technical field of voice identification, in particular to a voice-based direction and distance identification device and a direction and distance identification method thereof.

Background

Artificial intelligence is a branch of computer science that attempts to understand the essence of intelligence and produce a new intelligent machine that can react in a manner similar to human intelligence, a field of research that includes robotics, language recognition, image recognition, natural language processing, and expert systems, among others. Since the birth of artificial intelligence, theories and technologies become mature day by day, and application fields are expanded continuously, so that science and technology products brought by the artificial intelligence in the future can be assumed to be 'containers' of human intelligence. The artificial intelligence can simulate the information process of consciousness and thinking of people. Artificial intelligence is not human intelligence, but can think like a human, and can also exceed human intelligence. Artificial intelligence is a gate-challenging science that people who work must understand computer knowledge, psychology and philosophy. Artificial intelligence is a science that includes a very broad spectrum of fields, such as machine learning, computer vision, etc., and in general, one of the main goals of artificial intelligence research is to make machines competent for complex tasks that usually require human intelligence to complete. But the understanding of this "complex work" is different for different times and for different people. With the progress of data processing technology and the rapid spread of mobile internet, computer technology is widely applied to various fields of society, and with the progress of data processing technology, mass data is generated. Among them, voice data is receiving more and more attention. The speech recognition is a cross discipline of multiple disciplines relating to psychology, physiology, acoustics, linguistics, information theory, signal processing, computer discipline, pattern recognition and the like, and has wide application prospect.

With the development of artificial intelligence technology, speech recognition technology has also been developed into various industries, such as artificial intelligence dialogue, speech-to-text, speaker recognition, sound source direction recognition, etc., which is mainly accomplished according to acoustic features and various artificial intelligence algorithms. The sound direction distance identification device is built by using an android system and embedded hardware which are popular at the present stage, and has the advantages of small volume, portability, power saving and the like. The voice direction distance identification device operates various intelligent algorithms to mainly realize voice identification, direction identification and distance identification. The sound direction and distance identifying device can extract the sound to be identified from a lot of environmental noises, and can judge the direction and distance of the required sound.

The direction and distance identification device based on sound can be applied to various products needing to identify the direction and distance of the sound.

However, the existing direction and distance recognition device based on sound has low universality, does not have a network cloud function, and cannot analyze the direction and distance of sound.

Disclosure of Invention

The invention aims to provide a direction and distance identification device based on sound and a direction and distance identification method thereof, and aims to solve the problems that the existing direction and distance identification device based on sound is low in universality, does not have a network cloud function, and cannot analyze the direction and distance of the sound.

The technical scheme for solving the technical problems is as follows:

the present invention provides a sound-based direction and distance identification device, comprising: the voice acquisition module comprises a voice acquisition matrix plate, and a plurality of voice collectors are uniformly distributed on the periphery of the voice acquisition matrix plate and used for acquiring voice signals and transmitting the voice signals to the voice processing module; the sound processing module is used for receiving and processing the sound signal from the sound acquisition module, converting the sound signal into direction data and/or distance data, and simultaneously transmitting the direction data and/or the distance data to the network transmission module and the display module; a network transmission module for transmitting the direction data and/or the distance data to a cloud network; the display module is used for displaying the direction data and/or the distance data; the sound processing module is in communication connection with the sound acquisition module, the network transmission module and the display module at the same time.

Optionally, the sound collection matrix panel is configured as a microphone matrix panel and/or the sound collector is configured as a microphone.

Optionally, the sound processing module includes a signal amplifier, a filter, an analog-to-digital conversion circuit, and a core motherboard, an input end of the signal amplifier is used as an input end of the sound processing module and is connected to an output end of the sound acquisition module, an output end of the signal amplifier is connected to an input end of the filter, an output end of the filter is connected to an input end of the analog-to-digital converter, an output end of the analog-to-digital converter is connected to the core motherboard, and the core motherboard is connected to the display module and the network transmission module at the same time; the signal amplifier is configured to amplify the sound signal and transmit the sound signal to the filter, the filter performs filtering processing on the amplified sound signal and transmits the sound signal to the analog-to-digital conversion circuit, the analog-to-digital conversion circuit is configured to convert the filtered signal into a digital signal and transmit the digital signal to the core motherboard, and the core motherboard processes the digital signal to form the direction data and/or the distance data.

Optionally, the display module includes a display screen, and the display screen is connected to the sound processing module.

Optionally, the device for recognizing direction and distance based on sound further comprises a storage module, wherein the storage module is connected to the sound processing module and is used for storing the direction data and/or the distance data.

Optionally, the memory module is configured as a memory.

Optionally, the direction and distance identifying method includes:

s1: collecting a sound signal by using a sound collection module;

s2: amplifying the sound signal to obtain an amplified sound signal;

s3: carrying out filtering operation on the amplified sound signal to obtain a filtered signal;

s4: performing analog-to-digital conversion on the filtered signal to obtain a digital signal;

s5: obtaining the direction data and/or the distance data according to the digital signals;

s6: and simultaneously transmitting the direction data and/or the distance data to the network transmission module, the display module and the storage module.

Alternatively, the step S5 includes the following substeps:

s51: carrying out filtering operation on the digital signal to obtain a filtered digital signal;

s52: when the filtered digital signal is a preset signal, the step S53 is entered;

s53: analyzing the collection direction of the filtered digital signal, and calculating the distance between the sound signal generation point and the sound collection module to obtain the direction data and/or the distance data.

The invention has the following beneficial effects:

1. the direction distance identification device can be used as a whole, so that the direction distance identification device has higher universality and can be adapted to other products;

2. the voice processing module is in communication connection with the network transmission module, and direction data and distance data of voice can be transmitted to the network cloud platform, so that the storage capacity is improved, and a user can conveniently check data on various terminals;

3. the direction and distance identification device and the direction and distance identification method thereof provided by the invention can analyze the direction and distance of the sound, thereby providing accurate data for users and meeting various sound identification requirements;

4. the sound acquisition matrix board can be matched with various sound collectors of different models and different quantities, so that the precision requirement of sound identification under different requirements can be met.

Drawings

FIG. 1 is a schematic structural diagram of a sound-based direction and distance recognition apparatus according to the present invention;

FIG. 2 is a schematic diagram of an internal structure of a sound processing module of the device for recognizing direction and distance based on sound according to the present invention;

FIG. 3 is a circuit diagram of a signal amplifier of the sound-based direction distance identification apparatus according to the present invention;

FIG. 4 is a circuit diagram of a filter of a sound-based direction distance identification apparatus according to the present invention;

FIG. 5 is a circuit diagram of a memory of a sound-based direction distance identification device provided by the present invention;

FIG. 6 is a flow chart of a method for recognizing direction and distance based on sound according to the present invention;

fig. 7 is a flowchart illustrating a substep of step S5 in fig. 6.

Description of the reference numerals

1-a sound collection module; 2-a sound processing module; 21-a signal amplifier; 22-a filter; 23-analog-to-digital conversion circuitry; 24-core motherboard; 3-a network transmission module; 4-display module.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

Examples

The technical scheme for solving the technical problems is as follows:

the present invention provides a voice-based direction and distance recognition apparatus, as shown in fig. 1 and 2, including: the voice acquisition module comprises a voice acquisition matrix plate, and a plurality of voice acquisition modules 1 are uniformly distributed on the periphery of the voice acquisition matrix plate and used for acquiring voice signals and transmitting the voice signals to a voice processing module 2; the sound processing module 2 is used for receiving and processing the sound signal from the sound acquisition module, converting the sound signal into direction data and/or distance data, and simultaneously transmitting the direction data and/or the distance data to the network transmission module 3 and the display module 4; the network transmission module 3 is used for transmitting the direction data and/or the distance data to a cloud network; the display module 4 is used for displaying the direction data and/or the distance data; the sound processing module 2 is in communication connection with the sound collection module, the network transmission module 3 and the display module 4 at the same time.

The invention has the following beneficial effects:

1. the direction distance identification device can be used as a whole, so that the direction distance identification device has higher universality and can be adapted to other products;

2. through the existence of the network transmission module 3, the communication connection is established between the network transmission module and the sound processing module 2, and the direction data and the distance data of sound can be transmitted to a network cloud platform, so that the storage capacity is improved, and meanwhile, a user can conveniently check data on various terminals;

3. the direction and distance identification device and the direction and distance identification method thereof provided by the invention can analyze the direction and distance of the sound, thereby providing accurate data for users and meeting various sound identification requirements;

4. the existence of the sound collection matrix plate can match with the sound collection modules 1 of different types and different quantities, so that the precision requirement of sound identification under different requirements can be met.

Alternatively, the sound collection matrix board is configured as a microphone matrix board and/or the sound collection module 1 is configured as a microphone.

It should be noted that the microphones disposed on the microphone matrix board may be one microphone disposed in any direction, or may be a group of microphones, and the present invention is not limited to this specifically, and those skilled in the art may set the microphones in combination with the embodiments and practical situations provided by the present invention.

Alternatively, referring to fig. 3 and 4, the sound processing module 2 includes a signal amplifier 21, a filter 22, an analog-to-digital conversion circuit 23, and a core motherboard 24, an input end of the signal amplifier 21 is used as an input end of the sound processing module 2 to connect to an output end of the sound acquisition module, an output end of the signal amplifier is connected to an input end of the filter 22, an output end of the filter 22 is connected to an input end of the analog-to-digital converter, an output end of the analog-to-digital converter is connected to the core motherboard 24, and the core motherboard 24 is connected to both the display module 4 and the network transmission module 3; the signal amplifier 21 is configured to amplify the sound signal and transmit the sound signal to the filter 22, the filter 22 performs filtering processing on the amplified sound signal and transmits the sound signal to the analog-to-digital conversion circuit 23, the analog-to-digital conversion circuit 23 is configured to convert the filtered sound signal into a digital signal and transmit the digital signal to the core motherboard 24, and the core motherboard 24 processes the digital signal to form the direction data and/or the distance data.

Specifically, the core motherboard 24 may be an 8-core cpu with 32 bits, which can meet the requirement of fast and accurate processing of various artificial intelligence algorithms, and of course, a person skilled in the art may select other processors for cost reasons, and the present invention is not limited in this respect.

Optionally, the display module 4 comprises a display screen, and the display screen is connected to the sound processing module 2. The specification of the display screen, such as model parameters, can be selected by those skilled in the art, and the invention is not limited in particular.

Optionally, referring to fig. 5, the apparatus for recognizing direction and distance based on sound further includes a storage module, which is connected to the sound processing module 2 for storing the direction data and/or the distance data.

Optionally, the memory module is configured as a memory.

The present invention is not limited to specific models of memories, and those skilled in the art can select the storage space, size, model, etc. of the memory according to cost budget and other practical situations.

Optionally, referring to fig. 6, the direction and distance identifying method includes:

s1: collecting a sound signal by using a sound collection module;

s2: amplifying the sound signal to obtain an amplified sound signal;

s3: carrying out filtering operation on the amplified sound signal to obtain a filtered signal;

s4: performing analog-to-digital conversion on the filtered signal to obtain a digital signal;

s5: obtaining the direction data and/or the distance data according to the digital signals;

s6: and simultaneously transmitting the direction data and/or the distance data to the network transmission module 3, the display module 4 and the storage module.

Alternatively, referring to fig. 7, the step S5 includes the following sub-steps:

s51: carrying out filtering operation on the digital signal to obtain a filtered digital signal;

s52: when the filtered digital signal is a preset signal, the step S53 is entered;

s53: analyzing the collection direction of the filtered digital signal, and calculating the distance between the sound signal generation point and the sound collection module to obtain the direction data and/or the distance data.

Optionally, in step S52, it is determined whether the filtered digital signal is a preset signal through an acoustic feature extraction algorithm and an acoustic model building algorithm.

Optionally, in step S53, analyzing the collecting direction of the filtered digital signal by a sound direction determination algorithm; and calculating the distance between the sound signal generating point and the sound acquisition module through a sound distance judgment algorithm.

It should be noted that the acoustic feature extraction algorithm, the acoustic model establishment algorithm, the sound direction determination algorithm, and the sound distance determination algorithm are all well known in the art, and are not the main contents of the present invention, so the present invention is not limited thereto.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.