CN112053680A - Voice air conditioner control device suitable for blind person - Google Patents
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- 238000004378 air conditioning Methods 0.000 claims description 10
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/08—Speech classification or search
- G10L15/14—Speech classification or search using statistical models, e.g. Hidden Markov Models [HMMs]
- G10L15/142—Hidden Markov Models [HMMs]
- G10L15/144—Training of HMMs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/26—Speech to text systems
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/24—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being the cepstrum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/20—Feedback from users
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
- G10L2015/223—Execution procedure of a spoken command
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- Human Computer Interaction (AREA)
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- Audiology, Speech & Language Pathology (AREA)
- Health & Medical Sciences (AREA)
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Abstract
The invention relates to a voice air conditioner control device suitable for blind people, which comprises a voice receiving module and a voice processing module, wherein the voice processing module is used for identifying voice signals collected by the voice receiving module and outputting voice identification results; the control module is used for receiving the voice recognition result output by the voice processing module and generating a voice control instruction to be sent out; the air conditioner state data broadcasting device comprises an execution module, a voice broadcasting module and a voice broadcasting module, wherein the voice broadcasting module collects air conditioner state data and broadcasts the data. The method comprises the steps of detecting the distance and the time when the blind person approaches the air conditioner, broadcasting a voice control menu when the distance and the time meet set thresholds, enabling the blind person to speak a voice control instruction according to the voice control menu, processing the voice control instruction, converting the voice control instruction into an air conditioner instruction and controlling the air conditioner to perform operation, broadcasting the air conditioner state and the indoor environment state to the blind person, helping the blind person to send out the instruction better, and solving the problem that the existing voice control air conditioner is difficult to help the blind person to obtain the air conditioner state.
Description
Technical Field
The invention belongs to the technical field of air conditioner voice control, and particularly relates to a voice air conditioner control device suitable for blind people.
Background
The voice control device of the existing air conditioner broadcasts the help menu comprising a plurality of command words through the voice broadcasting module, after a user sends the command words according to the help menu, the voice collecting module collects voice signals sent by the user, then the voice identifying module identifies the collected voice signals to generate a voice identifying result, and the control module controls the air conditioner according to the voice identifying result. However, the existing voice control of the air conditioner has the disadvantage that a user can send command words according to the help menu to control the state of the air conditioner by sending the command words through the voice broadcaster. And the real-time state of the voice broadcast air conditioner is difficult to feed back to the blind in time, and the intellectualization is low.
Through retrieval, the Chinese invention patent is as follows: an air conditioner, a voice control device and a voice control method thereof (application No. 201811029946.5, application No. 2018.09.05), the application includes: the voice broadcasting module is used for broadcasting a help menu, wherein the help menu comprises a plurality of command words; the voice acquisition module is used for acquiring voice signals sent by a user based on the help menu; the voice recognition module is used for recognizing the voice signal to generate a voice recognition result; and the control module is connected with the voice recognition module and controls the air conditioner according to a voice recognition result. The voice control device of the embodiment of the invention can enable the user to clearly know the voice command operation method of the voice equipment by broadcasting the help menu comprising the command words, thereby further improving the user experience. But the application has the disadvantages that only the help menu can be broadcasted, and the function is not comprehensive.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to solve the problem that the existing voice air conditioner control equipment only can broadcast help menus and is not comprehensive in function.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the invention relates to a voice air conditioner control device suitable for blind people, which comprises
The voice receiving module is used for receiving a voice instruction;
the voice processing module is used for identifying the voice signal collected by the voice receiving module and outputting a voice identification result;
the control module is used for receiving the voice recognition result output by the voice processing module and generating a voice control instruction to be sent out;
the execution module is used for receiving and executing the voice control instruction sent by the control module;
a power module for powering a device;
and the voice broadcasting module collects the air conditioner state data and broadcasts the data.
Preferably, the voice receiving module is connected with a trigger recognition unit, and the trigger recognition unit is a distance sensor.
Preferably, the voice receiving module is a sound receiving device.
Preferably, the voice processing module is a voice conversion device.
Preferably, the control module is a controller.
Preferably, the execution module is an air conditioner switch, and the voice broadcasting module comprises a signal collecting device and a sound player.
A voice air conditioner control method suitable for the blind detects the distance and time when the blind approaches an air conditioner, when the distance and time meet set threshold values, a voice control menu is broadcasted, the blind speaks a voice control command according to the voice control menu, processes and converts the voice control command into an air conditioner command and controls the air conditioner to execute operation, and the voice control menu comprises an air conditioner working state and an indoor environment state.
Preferably, the method is performed by using the above apparatus, the speech processing module extracts feature parameters from the speech signal received by the speech receiving module by using mel-frequency cepstrum coefficients (MFCCs) and Linear Predictive Cepstrum Coefficients (LPCCs), then performs vector quantization (vq) (vectorquantization) to obtain a plurality of candidate results, matches the results with a lexicon established in the speech processing module, and finally transmits the results output by pattern matching to the control module, which sends a corresponding control instruction.
Preferably, a word bank corresponding to the voice command is arranged in the voice processing module, and a common air-conditioning voice control statement is arranged in the word bank.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
the invention relates to a voice air conditioner control device suitable for blind people, which comprises a voice receiving module, a voice processing module and a voice processing module, wherein the voice receiving module is used for receiving a voice instruction; the voice processing module is used for identifying the voice signal collected by the voice receiving module and outputting a voice identification result; the control module is used for receiving the voice recognition result output by the voice processing module and generating a voice control instruction to be sent out; the execution module is used for receiving and executing the voice control instruction sent by the control module; the power supply module is used for supplying power to the device; the voice broadcasting module collects air conditioner state data and broadcasts the data. The method comprises the steps of detecting the distance and the time when the blind person approaches the air conditioner, broadcasting a voice control menu when the distance and the time meet set thresholds, enabling the blind person to speak a voice control instruction according to the voice control menu, processing the voice control instruction, converting the voice control instruction into an air conditioner instruction and controlling the air conditioner to perform operation, broadcasting the air conditioner state and the indoor environment state to the blind person, helping the blind person to send out the instruction better, and solving the problem that the existing voice control air conditioner is difficult to help the blind person to obtain the air conditioner state.
Drawings
FIG. 1 is a schematic structural diagram of a voice air conditioner control device suitable for the blind;
FIG. 2 is a diagram of a basic model of an HMM according to the present invention.
The reference numerals in the schematic drawings illustrate:
100. a voice receiving module; 110. a trigger recognition unit; 200. a voice processing module; 300. a control module; 400. an execution module; 500. a power supply module; 600. voice broadcast module.
Detailed Description
In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in many different forms and are not limited to the embodiments described herein, but rather are provided for the purpose of providing a more thorough disclosure of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example 1
Referring to fig. 1, the voice air conditioner control device suitable for the blind comprises
A voice receiving module 100, wherein the voice receiving module 100 is configured to receive a voice instruction;
a voice processing module 200, wherein the voice processing module 200 is configured to identify a voice signal collected by the voice receiving module 100 and output a voice identification result;
the control module 300, the control module 300 is configured to receive the voice recognition result output by the voice processing module 200 and generate a voice control instruction to be sent out;
an execution module 400, wherein the execution module 400 is configured to receive and execute the voice control instruction sent by the control module 300;
a power module 500, the power module 500 being configured to supply power to a device;
The voice receiving module 100 is connected to a trigger recognition unit 110, and the trigger recognition unit 110 is a distance sensor. The voice receiving module 100 is a sound receiving device. The voice processing module 200 is a voice conversion device. The control module 300 is a controller. The execution module 400 is an air conditioner switch, and the voice broadcasting module 600 includes a signal collecting device and a sound player.
A voice air conditioner control method suitable for the blind detects the distance and time when the blind approaches an air conditioner, when the distance and time meet set threshold values, a voice control menu is broadcasted, the blind speaks a voice control command according to the voice control menu, processes and converts the voice control command into an air conditioner command and controls the air conditioner to execute operation, and the voice control menu comprises an air conditioner working state and an indoor environment state.
The voice processing module 200 is provided with a word bank corresponding to the voice command, and the word bank is provided with a common air-conditioning voice control statement.
The method is performed by the above device, the speech processing module 200 extracts feature parameters of the speech signal received by the speech receiving module 100 by using Mel Frequency Cepstrum Coefficients (MFCC) and Linear Prediction Cepstrum Coefficients (LPCC), then performs vector quantization (vq) (vectorquantization) to obtain a plurality of candidate results, matches the results with a model trained by the HMM and a lexicon established in the speech processing module 200, finally transmits the results output by the mode matching to the control module 300, and the control module 300 sends out a corresponding control instruction.
Wherein the basic model of the HMM is shown in fig. 2, wherein the gray circles represent observable states, the white circles represent hidden states, and the arrows represent transition probabilities between the states. Considering from a speech signal, phonemes in the signal are emitted in a left-to-right manner, so it is relatively reasonable to use a left-to-right state transition manner. And in chinese, the phoneme omission phenomenon rarely occurs, especially for monosyllabic sounds processed herein. So the jump-free state model is adopted in the design,
hidden markov models have three requirements: initial probability pi, hidden state transition matrix (A), and generating observed state probability matrix (B). HMM models are typically represented by λ ═ { pi, a, B }. The hidden markov model is described by the following 5 parameters:
and (4) N: the number of hidden state sequences, N states being denoted S1，S2…StThe hidden state of the moment is qt，qt∈(S1,S2…Sn)。
M: the number of each observation sequence is recorded as X for M observations1,X2…XMThe observed state at time t is yt，yt∈(X1，X2…XM)。
In hidden markov model, at the time when t is 0, the initial probability pi of the system is in a certain state q. In, i.e. pii＝P(q1＝Si)，1≤i≤N
State q at any time t, at its time tt+1State q only with time tt+1Related and the transition probability matrix A jumps, AijThe hidden state probability transition matrix is calculated by the following formula:
Aij＝P(qt+1＝Sj|qt＝Si)，1≤i，j≤N
state q at any time ttIs hidden, can not be directly observed from the outside, and can only be observed through an observation sequence q provided by the system at the current momenttIs derived so that the sequence y is observedtOnly with the hidden sequence qtRelated to BjxTo generate the observation state probability matrix, the calculation formula is as follows:
Bjx＝P(yt＝Xk|qt＝Sj)。1≤j≤N，1≤k≤M
the observation sequence probability of the HMM is solved by using a forward algorithm, the essence of the algorithm is a dynamic planning idea, a local state recurrence formula is found, and the optimal solution of the local state is expanded to the optimal solution of the whole problem. Calculating the forward probability of each hidden state at the moment 1 as follows:
α1＝πibi(y1)，1≤i≤N
the forward probability before the recursion time T is:
the calculation result is as follows:
the Viterbi algorithm is used to solve for the most likely hidden state sequence. And (4) calculating each hidden state condition at the (t +1) moment according to the hidden state qt condition at the t moment, and finding the maximum value of all possible paths. If the hidden state is i, then
And (3) recursion:
the state of t-1 in the probability maximum path is:
wherein, the Mel Frequency Cepstrum Coefficient (MFCC) is a speech feature parameter constructed according to the auditory characteristics of human ears. Because the sound height heard by human ears is not in linear correspondence with the frequency, the Mel frequency scale can more accurately correspond to the auditory characteristics of the human ears. The Mel frequency scale and the actual frequency show a substantially logarithmic distribution, and the conversion relationship can be approximated by the formula Fmel≈259510910(1+f/700)
The method comprises the following steps of:
the original voice signal S (n) is processed by a series of preprocessing to obtain a frame signal X (n), and the frame signal is subjected to discrete Fourier transform. Obtaining a linear frequency spectrum X (k):
wherein, K is more than or equal to o and less than or equal to N, N is the point number of Fourier transform to calculate the energy spectrum of the frame signal, namely the discrete frequency obtained by the above formulaThe square of the rate spread. The energy spectrum is band-pass filtered by M triangular filters of the Miller scale. M is usually 24-40.
The above-mentioned embodiments only express a certain implementation mode of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which are within the protection scope of the present invention; therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. The utility model provides a pronunciation air conditioner controlling means that is fit for blind person's use which characterized in that: comprises that
A voice receiving module (100), wherein the voice receiving module (100) is used for receiving a voice instruction;
the voice processing module (200), the voice processing module (200) is used for identifying the voice signal collected by the voice receiving module (100) and outputting a voice identification result;
the control module (300), the control module (300) is used for receiving the voice recognition result output by the voice processing module (200) and generating a voice control instruction to be sent out;
the execution module (400), the execution module (400) is used for receiving and executing the voice control instruction sent by the control module (300);
a power module (500), the power module (500) for powering a device;
the air conditioner state data broadcasting system comprises a voice broadcasting module (600), wherein the voice broadcasting module (600) collects air conditioner state data and broadcasts the data.
2. The voice air-conditioning control device suitable for the blind as claimed in claim 1, wherein: the voice receiving module (100) is connected with a trigger recognition unit (110), and the trigger recognition unit (110) is a distance sensor.
3. The voice air-conditioning control device suitable for the blind as claimed in claim 1, wherein: the voice receiving module (100) is a sound receiving device.
4. The voice air-conditioning control device suitable for the blind as claimed in claim 1, wherein: the voice processing module (200) is a voice conversion device.
5. The voice air-conditioning control device suitable for the blind as claimed in claim 1, wherein: the control module (300) is a controller.
6. The voice air-conditioning control device suitable for the blind as claimed in claim 1, wherein: the execution module (400) is an air conditioner switch, and the voice broadcasting module (600) comprises a signal collecting device and a sound player.
7. A voice air conditioner control method suitable for the blind is characterized in that: the method comprises the steps of detecting the distance and the time when a blind person approaches an air conditioner, broadcasting a voice control menu when the distance and the time meet set thresholds, and speaking a voice control command by the blind person according to the voice control menu, processing the voice control command, converting the voice control command into an air conditioner command and controlling the air conditioner to execute operation, wherein the voice control menu comprises an air conditioner working state and an indoor environment state.
8. The voice air-conditioning control method suitable for the blind as claimed in claim 7, wherein: the method is carried out by adopting the device of any one of claims 1 to 6, the speech processing module (200) extracts characteristic parameters of the speech signals received by the speech receiving module (100) by adopting Mel Frequency Cepstral Coefficients (MFCC) and Linear Prediction Cepstral Coefficients (LPCC), then vector quantizes VQ (vectorquantization) so as to obtain a plurality of candidate results, matches the results with a word stock established in the speech processing module (200), finally transmits the results output by mode matching to the control module (300), and the control module (300) sends out corresponding control instructions.
9. The voice air-conditioning control method suitable for the blind as claimed in claim 8, wherein: the voice processing module (200) is internally provided with a word bank corresponding to the voice command, and the word bank is internally provided with common air-conditioning voice control sentences.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20220170656A1 (en) * | 2019-08-20 | 2022-06-02 | Gd Midea Air-Conditioning Equipment Co., Ltd. | Air-conditioning instruction detection method, control device and air-conditioning system |
| CN114704926A (en) * | 2022-02-18 | 2022-07-05 | 青岛海尔空调器有限总公司 | Control method, device and equipment of air conditioner and storage medium |
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| US20220170656A1 (en) * | 2019-08-20 | 2022-06-02 | Gd Midea Air-Conditioning Equipment Co., Ltd. | Air-conditioning instruction detection method, control device and air-conditioning system |
| CN114704926A (en) * | 2022-02-18 | 2022-07-05 | 青岛海尔空调器有限总公司 | Control method, device and equipment of air conditioner and storage medium |
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