CN110176232B - Sound control circuit for automobile tail gate and control method thereof - Google Patents
Sound control circuit for automobile tail gate and control method thereof Download PDFInfo
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- CN110176232B CN110176232B CN201910258760.5A CN201910258760A CN110176232B CN 110176232 B CN110176232 B CN 110176232B CN 201910258760 A CN201910258760 A CN 201910258760A CN 110176232 B CN110176232 B CN 110176232B
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
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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
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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
- G10L15/00—Speech recognition
- G10L15/28—Constructional details of speech recognition 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
- 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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- Audiology, Speech & Language Pathology (AREA)
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Abstract
The invention discloses a sound control circuit of an automobile tail gate, which comprises: the device comprises a sound recording module, an audio filtering module, a voice processing and identifying module, an MCU control module, a tail gate state detection circuit module and a tail gate switch control module; the voice recording module, the audio filtering module, the voice processing and identifying module and the MCU control module are electrically connected in sequence; the MCU control module is electrically connected with the tail gate state detection circuit module and the tail gate switch control module respectively; the invention also discloses a control method of the automobile tail gate sound control circuit, which comprises the following steps: recording a voice signal; performing filtering processing and digital-to-analog conversion to generate audio data; identifying and analyzing the audio data; and controlling the opening and closing of the tail gate according to the voice command to be processed and the opening and closing information of the tail gate. The invention directly opens or closes the electric tail gate of the automobile through the voice command, thereby improving the reliability and the safety of the voice control of the tail gate of the automobile.
Description
Technical Field
The invention relates to the technical field of automobile electronics, in particular to an automobile tail gate sound control circuit and a control method thereof.
Background
Along with the popularity of the SUV, the vehicle body of the SUV is higher, and the tail gate is opened upwards directly, and after the SUV is opened, some heights exceed 1.8 meters, and the height is shorter or a female vehicle owner can not reach the tail gate switch by lifting the tail gate, so that some people often need to jump up to press the switch for closing the door, and the situation is laborious and unsafe. Especially if something is moved by hand, opening and closing the door is more troublesome.
Patent application No. 201510133382.X discloses a voice control method for automobile doors and windows, which comprises the following steps: a standby step, comprising: the Bluetooth unit matches the received Bluetooth signal, and if the matching is successful, the Bluetooth unit outputs an activation signal to activate the voice control unit in the dormant state; a voice judgment step, comprising: the voice control unit enters a voice monitoring mode, waits for an input voice signal of the voice input equipment, judges whether the input voice signal is an effective voice instruction or not when the voice control unit receives the input voice signal of the voice input equipment, and executes an action execution step if the input voice signal is the effective voice instruction; an action execution step comprising: and executing corresponding actions on the corresponding car door or the corresponding car window according to the voice command. The technical scheme of this application lacks and carries out reasonable safe linkage with car hardware signals such as door, and the recognition rate and the rate of accuracy of pronunciation are low moreover.
Disclosure of Invention
In view of the above, it is necessary to provide an automobile tailgate sound control circuit and a control method thereof to solve the above-mentioned drawbacks in the background art, so as to ensure that the automobile is not triggered by an external voice to open the door by mistake during a normal use or a temporary stop, and ensure that the voice is recognized and the door opening signal is received only on the premise of obtaining a legal key signal, thereby implementing precise and safe automobile tailgate sound control.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automobile tail gate acoustic control circuit includes: the device comprises a sound recording module, an audio filtering module, a voice processing and identifying module, an MCU control module, a tail gate state detection circuit module and a tail gate switch control module; the sound recording module, the audio filtering module, the voice processing and identifying module and the MCU control module are electrically connected in sequence; the MCU control module is electrically connected with the tail gate state detection circuit module and the tail gate switch control module respectively;
the voice recording module is used for recording voice signals;
the audio filtering and processing module is used for filtering the voice signal of the sound recording module, performing digital-to-analog conversion on the filtered voice signal to generate audio data, and transmitting the audio data to the voice processing and identifying module;
the voice processing and identifying module is used for identifying and analyzing the received audio data so as to judge whether the current voice signal is a voice instruction needing to be processed or not and transmitting the voice instruction needing to be processed to the MCU control module;
the tail gate state detection circuit module is used for detecting the opening and closing state of the tail gate and transmitting the opening and closing information of the tail gate to the MCU control module;
the MCU control module is used for controlling the opening and closing of the tail gate through the tail gate opening and closing control module according to the received voice instruction and the opening and closing information of the tail gate;
and the tail gate switch control module is used for controlling the opening and closing of the tail gate.
Furthermore, the MCU control module adopts an ARM + DSP dual-core processor.
Furthermore, the voice processing and recognition module adopts an ARM + DSP dual-core processor.
Furthermore, the MCU control module is also used for DSP initialization and power supply management.
A control method of an automobile tail gate sound control circuit is applied to the automobile tail gate sound control circuit, and comprises the following steps:
s1, recording a voice signal;
s2, performing filtering processing on the voice signal and performing digital-to-analog conversion on the filtered voice signal to generate audio data;
s3, identifying and analyzing the audio data, thereby judging whether the current voice signal is a voice instruction needing to be processed; if yes, go to S4; if not, continuing to execute S3;
and S4, controlling the opening and closing of the tail gate according to the voice command to be processed and the opening and closing information of the tail gate.
Further, in S2, the audio filtering and processing module performs analog filtering on the analog audio data recorded by the sound recording module, performs digital quantization conversion on the processed analog audio, and then sends the converted analog audio to the speech processing and recognition module.
Further, in S4, the voice command to be processed is distinguished according to the current opening/closing state of the tail gate.
Further, in S4, when the instruction needing to be processed is identified, whether to execute the current instruction is determined according to the status of the tail gate; when the tail gate is closed and the voice processing and recognition module recognizes a voice instruction about opening the tail gate, the MCU control module controls the tail gate to be opened through the tail gate switch control module; when the tail gate is opened and the voice processing and recognition module recognizes a voice instruction about closing the tail gate, the MCU control module controls the tail gate to be closed through the tail gate switch control module.
Further, a sufficiently unnecessary condition of S4 is that valid vehicle key start information is detected.
Further, a sufficiently unnecessary condition of S4 is that an invalid automobile door key switch signal is detected.
The invention has the beneficial effects that:
the electric tail gate of the automobile is directly opened or closed through the voice password, so that the tail gate is convenient for an automobile owner to open or close, particularly an SUV (sports utility vehicle) type; the invention requires to take ACC signals from the position of the fuse box on the vehicle, and the circuit of the invention is electrified only when the ACC signals are invalid, thereby ensuring that the vehicle cannot be triggered by outside voice to open the door by mistake in the normal use driving process or temporary parking; when the legal key signal is detected, the voice is identified, and the logic module receives the door opening signal, so that the vehicle door is prevented from being opened illegally. The vehicle tail door is determined not to be opened mistakenly or illegally by the double-insurance method.
Drawings
FIG. 1 is a schematic structural diagram of an acoustic control circuit for a tailgate of an automobile according to the present invention;
FIG. 2 is an electronic circuit diagram of the sound recording module and the audio filtering module according to the present invention;
FIG. 3 is an electrical circuit diagram of the speech processing and recognition module and the MCU control module of the present invention;
FIG. 4 is an electrical circuit diagram of the tailgate status detection circuit module of the present invention;
FIG. 5 is an electrical circuit diagram of the tailgate switch control module of the present invention;
FIG. 6 is a flow chart of a control method of the acoustic control circuit for the tailgate of the vehicle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be further clearly and completely described below with reference to the embodiments of the present invention. It should be noted that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like, are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention.
The terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, the definitions of "first", "second", "third", "fourth" features may explicitly or implicitly include one or more of such features.
Example 1
As shown in fig. 1, an acoustic control circuit for a tailgate of an automobile includes: the device comprises a sound recording module, an audio filtering module, a voice processing and identifying module, an MCU control module, a tail gate state detection circuit module and a tail gate switch control module; the sound recording module, the audio filtering module, the voice processing and identifying module and the MCU control module are electrically connected in sequence; the MCU control module is electrically connected with the tail gate state detection circuit module and the tail gate switch control module respectively;
the voice recording module is used for recording voice signals;
the audio filtering and processing module is used for filtering the voice signal of the sound recording module, performing digital-to-analog conversion on the filtered voice signal to generate audio data, and transmitting the audio data to the voice processing and identifying module;
the voice processing and identifying module is used for identifying and analyzing the received audio data so as to judge whether the current voice signal is a voice instruction needing to be processed or not and transmitting the voice instruction needing to be processed to the MCU control module;
the tail gate state detection circuit module is used for detecting the opening and closing state of the tail gate and transmitting the opening and closing information of the tail gate to the MCU control module;
the MCU control module is used for controlling the opening and closing of the tail gate through the tail gate opening and closing control module according to the received voice instruction and the opening and closing information of the tail gate;
and the tail gate switch control module is used for controlling the opening and closing of the tail gate.
Furthermore, the MCU control module adopts an ARM + DSP dual-core processor.
Furthermore, the voice processing and recognition module adopts an ARM + DSP dual-core processor.
Furthermore, the MCU control module is also used for DSP initialization and power supply management.
As shown in fig. 6, a control method of an automobile tail gate sound control circuit is applied to the automobile tail gate sound control circuit, and the control method includes the following steps:
s1, recording a voice signal;
s2, performing filtering processing on the voice signal and performing digital-to-analog conversion on the filtered voice signal to generate audio data;
s3, identifying and analyzing the audio data, thereby judging whether the current voice signal is a voice instruction needing to be processed; if yes, go to S4; if not, continuing to execute S3;
and S4, controlling the opening and closing of the tail gate according to the voice command to be processed and the opening and closing information of the tail gate.
Further, in S2, the audio filtering and processing module performs analog filtering on the analog audio data recorded by the sound recording module, performs digital quantization conversion on the processed analog audio, and then sends the converted analog audio to the speech processing and recognition module.
Further, in S4, the voice command to be processed is distinguished according to the current opening/closing state of the tail gate.
Further, in S4, when the instruction needing to be processed is identified, whether to execute the current instruction is determined according to the status of the tail gate; when the tail gate is closed and the voice processing and recognition module recognizes a voice instruction about opening the tail gate, the MCU control module controls the tail gate to be opened through the tail gate switch control module; when the tail gate is opened and the voice processing and recognition module recognizes a voice instruction about closing the tail gate, the MCU control module controls the tail gate to be closed through the tail gate switch control module.
Further, a sufficiently unnecessary condition of S4 is that valid vehicle key start information is detected.
Further, a sufficiently unnecessary condition of S4 is that an invalid automobile door key switch signal is detected.
Example 2
Example 2 is a further optimization of example 1;
an automobile tail gate acoustic control circuit includes: the device comprises a sound recording module, an audio filtering module, a voice processing and identifying module, an MCU control module, a tail gate state detection circuit module and a tail gate switch control module; the sound recording module, the audio filtering module, the voice processing and identifying module and the MCU control module are electrically connected in sequence; the MCU control module is electrically connected with the tail gate state detection circuit module and the tail gate switch control module respectively;
the voice recording module is used for recording voice signals;
the audio filtering and processing module is configured to perform filtering processing on the voice signal of the sound recording module (specifically, filter waveform data exceeding a normal spectrum range), perform digital-to-analog conversion on the filtered voice signal to generate audio data, and transmit the audio data to the voice processing and recognition module; specifically, the audio filtering and processing module mainly performs analog filtering on analog audio data sampled by an MIC, filters waveform data exceeding a normal spectrum range, performs digital quantization, that is, so-called AD conversion, on the processed analog audio, and then sends the analog audio to the DSP unit;
the voice processing and identifying module is used for identifying and analyzing the received audio data so as to judge whether the current voice signal is a voice instruction needing to be processed or not and transmitting the voice instruction needing to be processed to the MCU control module; the voice processing and identifying module adopts an ARM + DSP dual-core processor; specifically, as shown in fig. 1-2, the voice processing and identifying module adopts an ARM + DSP dual-core processor, and the DSP unit is mainly responsible for performing an identifying and analyzing algorithm on the audio data whose front end has been subjected to analog-to-digital conversion, so as to determine whether the currently received audio is an instruction to be processed; the front and rear audio pickups are accessed into the system through MK1 and MK2, audio signals are subjected to filtering processing after being selected by sound sources of U1 and U2, and then are sent to a DSP at the rear end for voice recognition; the DSP identifies and analyzes the voice, and determines whether to execute the current instruction according to the tail gate state when the instruction needing to be processed is identified; if the tail gate is closed but the voice command signal of opening the tail gate or starting the tail gate is recognized, a tail gate opening command is sent out and the switch control logic module executes the action of opening the tail gate; if the tail gate is in an open state but the voice command signal of closing the tail gate is recognized, a tail gate closing command is sent out and the switch control logic module executes the action of closing the tail gate;
the tail gate state detection circuit module is used for detecting the opening and closing state of the tail gate and transmitting the opening and closing information of the tail gate to the MCU control module; specifically, as shown in fig. 4, the tail gate state detection circuit module is configured to detect whether the tail gate is currently in an open state or closed state, so as to correctly separately process an instruction for opening and closing the tail gate;
the MCU control module is used for controlling the opening and closing of the tail gate through the tail gate opening and closing control module according to the received voice instruction and the opening and closing information of the tail gate; specifically, as shown in fig. 3, the MCU control module adopts an ARM + DSP dual-core processor, and is configured to perform functional logic processing such as initialization, power management, vehicle and tailgate state detection, tailgate switch action control, and the like on the DSP;
the tail gate switch control module is used for controlling the opening and closing of the tail gate; specifically, as shown in fig. 5, the tailgate switch control module processes the door opening action according to the instruction processing result of the voice processing and recognition module and the instruction sent by the MCU control module, starts the door opening action processing upon receiving the door opening instruction, and starts the door closing action processing upon receiving the door closing instruction.
As shown in fig. 6, a control method of an automobile tail gate sound control circuit is applied to the automobile tail gate sound control circuit, and the control method includes the following steps:
s1, recording a voice signal;
s2, performing filtering processing on the voice signal and performing digital-to-analog conversion on the filtered voice signal to generate audio data;
s3, identifying and analyzing the audio data, thereby judging whether the current voice signal is a voice instruction needing to be processed; if yes, go to S4; if not, continuing to execute S3;
s4, controlling the opening and closing of the tail gate according to the voice command to be processed and the opening and closing information of the tail gate;
further, a sufficiently unnecessary condition of S4 is that valid vehicle key start information is detected; a sufficiently unnecessary condition of S4 is detection of an invalid automobile door key switch signal (ACC signal); specifically, the ACC signal disappears and the key signal is detected to be normal, at the moment, the tail gate voice control system is activated, and meanwhile, a tail gate state signal is detected, the tail gate state is high level, which indicates that a tail gate signal line is effective, the two MIC heads inside and outside are in an independent mode, and the system works in an independent instruction mode state of 'opening the tail gate' and 'closing the tail gate'; the tail gate state is a low level indicating that a tail gate signal wire is invalid, the inner MIC and the outer MIC are mixed modes, and the system works in a mixed instruction mode state of starting the tail gate; in order to prevent misoperation in the process of temporary parking or driving, hardware logic associates an ACC signal and a key signal on the vehicle, and the door opening action is executed only when the ACC does not have a signal, namely the normal parking state is processed, and the vehicle can detect that the key is valid; when the system is installed, an ACC control signal is taken from the position of the fuse box on the vehicle according to the installation instruction requirement, and the voice control system is electrified only when the ACC signal is invalid, so that the situation that the vehicle is triggered by outside voice to open the door by mistake in the normal use driving process or the temporary parking process is avoided; only when the vehicle can detect a legal key signal, the voice control system identifies the voice and the door opening logic module receives a door opening signal, so that the vehicle door is prevented from being opened illegally; the vehicle tail door is determined not to be opened mistakenly or illegally by the double-insurance method.
The working results of the invention are as follows:
1. the voice controls the door opening and closing action of the electric tail door of the automobile;
2. detecting and judging an ACC signal to prevent mistaken door opening during driving or temporary parking;
3. the effective detection and judgment of the associated car key are carried out to prevent illegal door opening after parking;
4. the automatic adaptive door opening and closing instruction is in a separate mode or a mixed integrated mode;
5. the electric tail gate with different working types and modes is adapted through dialing;
6. the opening of the electric tail gate of the automobile is controlled by a voice command of opening the tail gate or starting the tail gate;
7. the closing of the electric tail gate of the automobile is controlled by a voice command of closing the tail gate or starting the tail gate;
8. the opening of the electric tail gate of the automobile is controlled by the voice command of 'opening the electric tail gate please';
9. the electric tail gate of the automobile is controlled to be closed by the voice command of 'the electric tail gate please close'.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. The utility model provides an automobile tail-gate acoustic control circuit which characterized in that, this automobile tail-gate acoustic control circuit includes: the device comprises a sound recording module, an audio filtering module, a voice processing and identifying module, an MCU control module, a tail gate state detection circuit module and a tail gate switch control module; the sound recording module, the audio filtering module, the voice processing and identifying module and the MCU control module are electrically connected in sequence; the MCU control module is electrically connected with the tail gate state detection circuit module and the tail gate switch control module respectively;
the voice recording module is used for recording voice signals;
the audio filtering and processing module is used for filtering the voice signal of the sound recording module, performing digital-to-analog conversion on the filtered voice signal to generate audio data, and transmitting the audio data to the voice processing and identifying module;
the voice processing and identifying module is used for identifying and analyzing the received audio data so as to judge whether the current voice signal is a voice instruction needing to be processed or not and transmitting the voice instruction needing to be processed to the MCU control module;
the tail gate state detection circuit module is used for detecting the opening and closing state of the tail gate and transmitting the opening and closing information of the tail gate to the MCU control module;
the MCU control module is used for controlling the opening and closing of the tail gate through the tail gate opening and closing control module according to the received voice instruction and the opening and closing information of the tail gate; a sufficiently unnecessary condition thereof is that valid vehicle key start information is detected; a sufficiently unnecessary condition thereof is that an invalid automobile door key switch signal, i.e., an ACC signal, is detected;
specifically, the ACC signal disappears and the key signal is detected to be normal, at the moment, the tail gate voice control system is activated, and meanwhile, a tail gate state signal is detected, the tail gate state is high level, which indicates that a tail gate signal line is effective, the two MIC heads inside and outside are in independent modes, and the system works in an independent instruction mode state of opening and closing the tail gate; the opening of the electric tail gate of the automobile is controlled by a tail gate opening voice instruction or a tail gate starting voice instruction, or the closing of the electric tail gate of the automobile is controlled by a tail gate closing voice instruction or a tail gate starting voice instruction;
the tail gate state is a low level indicating that a tail gate signal line is invalid, the inner MIC and the outer MIC are mixed modes, and the system works in a mixed instruction mode state for starting the tail gate; the opening of the electric tail gate of the automobile is controlled by the voice command of opening the electric tail gate, or the closing of the electric tail gate of the automobile is controlled by the voice command of closing the electric tail gate;
in order to prevent misoperation in the process of temporary parking or driving, hardware logic associates an ACC signal and a key signal on the vehicle, and the door opening action is executed only when the ACC does not have a signal, namely the normal parking state is processed, and the vehicle can detect that the key is valid; when the system is installed, an ACC control signal is taken from the position of the fuse box on the vehicle according to the installation instruction requirement, and the voice control system is electrified only when the ACC signal is invalid, so that the situation that the vehicle is triggered by outside voice to open the door by mistake in the normal use driving process or the temporary parking process is avoided; only when the vehicle can detect a legal key signal, the voice control system identifies the voice and the door opening logic module receives a door opening signal, so that the vehicle door is prevented from being opened illegally; the vehicle tail door is determined not to be opened mistakenly or illegally by the double-insurance method;
and the tail gate switch control module is used for controlling the opening and closing of the tail gate.
2. The acoustic control circuit for the automobile tail gate according to claim 1, wherein the MCU control module adopts an ARM + DSP dual-core processor.
3. The acoustic control circuit for the automobile tail gate according to claim 1, wherein the voice processing and recognition module adopts an ARM + DSP dual-core processor.
4. The voice-controlled circuit for the automobile tail gate according to claim 1, wherein the MCU control module is further used for DSP initialization and power management.
5. A control method of a voice control circuit for a rear door of a vehicle, applied to the voice control circuit for a rear door of a vehicle according to any one of claims 1 to 4, the control method comprising the steps of:
s1, recording a voice signal;
s2, performing filtering processing on the voice signal and performing digital-to-analog conversion on the filtered voice signal to generate audio data;
s3, identifying and analyzing the audio data, thereby judging whether the current voice signal is a voice instruction needing to be processed; if yes, go to S4; if not, continuing to execute S3;
s4, controlling the opening and closing of the tail gate according to the voice command to be processed and the opening and closing information of the tail gate, wherein the sufficient unnecessary condition is that valid car key starting information is detected; a sufficiently unnecessary condition thereof is that an invalid automobile door key switch signal, i.e., an ACC signal, is detected; specifically, the ACC signal disappears and the key signal is detected to be normal, at the moment, the tail gate voice control system is activated, and meanwhile, a tail gate state signal is detected, the tail gate state is high level, which indicates that a tail gate signal line is effective, the two MIC heads inside and outside are in independent modes, and the system works in an independent instruction mode state of opening and closing the tail gate; the opening of the electric tail gate of the automobile is controlled by a tail gate opening voice instruction or a tail gate starting voice instruction, or the closing of the electric tail gate of the automobile is controlled by a tail gate closing voice instruction or a tail gate starting voice instruction;
the tail gate state is a low level indicating that a tail gate signal line is invalid, the inner MIC and the outer MIC are mixed modes, and the system works in a mixed instruction mode state for starting the tail gate; the opening of the electric tail gate of the automobile is controlled by the voice command of opening the electric tail gate, or the closing of the electric tail gate of the automobile is controlled by the voice command of closing the electric tail gate;
in order to prevent misoperation in the process of temporary parking or driving, hardware logic associates an ACC signal and a key signal on the vehicle, and the door opening action is executed only when the ACC does not have a signal, namely the normal parking state is processed, and the vehicle can detect that the key is valid; when the system is installed, an ACC control signal is taken from the position of the fuse box on the vehicle according to the installation instruction requirement, and the voice control system is electrified only when the ACC signal is invalid, so that the situation that the vehicle is triggered by outside voice to open the door by mistake in the normal use driving process or the temporary parking process is avoided; only when the vehicle can detect a legal key signal, the voice control system identifies the voice and the door opening logic module receives a door opening signal, so that the vehicle door is prevented from being opened illegally; the vehicle tail door is determined not to be opened mistakenly or illegally by the double-insurance method.
6. The method as claimed in claim 5, wherein in S2, the audio filtering and processing module performs analog filtering on the analog audio data recorded by the sound recording module, performs digital quantization on the processed analog audio data, and sends the processed analog audio data to the voice processing and recognition module.
7. The method for controlling a voice-operated circuit for a tailgate of a vehicle according to claim 5, wherein in S4, the voice command to be processed is discriminated according to the current opening/closing state of the tailgate.
8. The control method of a voice-operated circuit for a tailgate of a vehicle, according to claim 7, wherein in S4, when the command to be processed is recognized, it is determined whether to execute the current command according to the state of the tailgate; when the tail gate is closed and the voice processing and recognition module recognizes a voice instruction about opening the tail gate, the MCU control module controls the tail gate to be opened through the tail gate switch control module; when the tail gate is opened and the voice processing and recognition module recognizes a voice instruction about closing the tail gate, the MCU control module controls the tail gate to be closed through the tail gate switch control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910258760.5A CN110176232B (en) | 2019-04-01 | 2019-04-01 | Sound control circuit for automobile tail gate and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910258760.5A CN110176232B (en) | 2019-04-01 | 2019-04-01 | Sound control circuit for automobile tail gate and control method thereof |
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| CN110176232A CN110176232A (en) | 2019-08-27 |
| CN110176232B true CN110176232B (en) | 2021-11-05 |
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| CN201910258760.5A Active CN110176232B (en) | 2019-04-01 | 2019-04-01 | Sound control circuit for automobile tail gate and control method thereof |
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| CN112554702A (en) * | 2020-12-08 | 2021-03-26 | 奇瑞商用车（安徽）有限公司 | Intelligent opening and closing control device for automobile tail door and control method thereof |
| CN113047729A (en) * | 2021-04-14 | 2021-06-29 | 的卢技术有限公司 | Control system, method and device for opening and closing automobile tail gate based on human body detection and voiceprint recognition and storage medium |
| CN113374378A (en) * | 2021-06-03 | 2021-09-10 | 东风汽车集团股份有限公司 | Control system, method and storage medium for off-line sound control electric back door |
| CN114379504A (en) * | 2022-01-24 | 2022-04-22 | 中国第一汽车股份有限公司 | Automobile tail door control method and vehicle |
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