CN112383857B - Earphone control method, control device and earphone - Google Patents
Earphone control method, control device and earphone Download PDFInfo
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- CN112383857B CN112383857B CN202011247838.2A CN202011247838A CN112383857B CN 112383857 B CN112383857 B CN 112383857B CN 202011247838 A CN202011247838 A CN 202011247838A CN 112383857 B CN112383857 B CN 112383857B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1083—Reduction of ambient noise
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1091—Details not provided for in groups H04R1/1008 - H04R1/1083
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Abstract
The application discloses an earphone control method, an earphone control device and an earphone, and belongs to the technical field of communication. In the method, under the condition that the noise reduction function of the earphone is started, whether a moving target object exists in a first preset distance range is determined according to a plurality of detection signals transmitted by an electromagnetic wave communication channel and a plurality of received reflection signals, and if the moving target object exists in the first preset distance range, the noise reduction function is closed. Under the condition that a user wears the earphone, whether a target object close to the periphery of the user exists or not is detected through the electromagnetic wave communication channel, and the noise reduction function of the earphone is turned off when the target object is detected, so that the dangerous condition caused by the fact that the user cannot notice the moving target object in time is avoided, and the safety of the user when the user wears the earphone is improved.
Description
Technical Field
The application belongs to the technical field of communication, and particularly relates to an earphone control method, an earphone control device and an earphone.
Background
Currently, in order to obtain good sound quality and immersive experience, headphones typically employ noise reduction functionality to isolate ambient sound. The earphone with the noise reduction function can bring better use experience to users under the condition of indoor use, and is very popular with the users.
However, the existing earphones with the noise reduction function also have the following defects: since the user often uses the headset in an outdoor environment, in many situations, for example, in road walking, cycling, or sports situations, if the headset is enabled to isolate environmental sounds, the personal safety of the user may be threatened. For example, if a user uses an earphone with a noise reduction function while riding a bicycle, the user may not hear the horn or whistle of the vehicle behind in time, which may cause traffic accidents.
Disclosure of Invention
The embodiment of the application aims to provide an earphone control method, an earphone control device and an earphone, and can solve the problem that when a user uses the earphone with a noise reduction function outdoors, a vehicle threatens personal safety.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides an earphone control method, where the earphone includes an electromagnetic wave communication channel, and the electromagnetic wave communication channel is used for transmitting a probe signal and receiving a reflected signal, and the control method includes:
under the condition that the noise reduction function of the earphone is started, determining whether a moving target object exists in a first preset distance range according to a plurality of detection signals transmitted by the electromagnetic wave communication channel and a plurality of received reflection signals;
and if a moving target object exists in the first preset distance range, closing the noise reduction function.
In a second aspect, an embodiment of the present application provides an earphone control device, where the earphone includes an electromagnetic wave communication channel for transmitting a probe signal and receiving a reflected signal, and the control device includes:
the determining module is used for determining whether a moving target object exists in a first preset distance range according to a plurality of detection signals transmitted by the electromagnetic wave communication channel and a plurality of received reflection signals under the condition that the noise reduction function of the earphone is started;
and the closing module is used for closing the noise reduction function if a moving target object exists in the first preset distance range.
In a third aspect, embodiments of the present application provide a headset comprising an electromagnetic wave communication channel for transmitting a probe signal and receiving a reflected signal, the headset further comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method according to the first aspect.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps of the method according to the first aspect.
In a fifth aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the method according to the first aspect.
To sum up, in the earphone control method provided in the embodiment of the present application, when the noise reduction function of the earphone is enabled, whether a moving target object exists in a first preset distance range is determined according to a plurality of detection signals transmitted by an electromagnetic wave communication channel and a plurality of received reflection signals, and if the moving target object exists in the first preset distance range, the noise reduction function is turned off. Under the condition that a user wears the earphone, whether a target object close to the periphery of the user exists or not is detected through the electromagnetic wave communication channel, and the noise reduction function of the earphone is turned off when the target object is detected, so that the dangerous condition caused by the fact that the user cannot notice the moving target object in time is avoided, and the safety of the user when the user wears the earphone is improved.
Drawings
Fig. 1 is a flow chart of steps of a headset control method of an embodiment of the invention;
fig. 2 is a schematic structural diagram of an earphone according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a first distance of a headphone control method according to an embodiment of the invention;
fig. 4 is a block diagram showing the structure of the headphone control apparatus according to the embodiment of the present invention;
fig. 5 is a schematic diagram showing a hardware structure of an electronic device for implementing an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The following describes in detail an earphone control method, a control device, and an earphone provided in the embodiments of the present application with reference to the accompanying drawings and through specific embodiments and application scenarios thereof.
As shown in fig. 1, the earphone control method according to the embodiment of the present invention includes the following steps:
and step 101, under the condition that the noise reduction function of the earphone is started, determining whether a moving target object exists in a first preset distance range according to a plurality of detection signals transmitted by the electromagnetic wave communication channel and a plurality of received reflection signals.
In an embodiment of the present invention, the electromagnetic wave communication channel may be a channel that transmits a signal by using an electromagnetic wave, and the electromagnetic wave communication channel may transmit a detection signal and receive a reflection signal, where the detection signal may be an electromagnetic wave signal for detecting an object, and the reflection signal may be an electromagnetic wave signal reflected by an object during signal transmission, for example, during the transmission of the detection signal in a space, when a metal object is encountered, because a metal material cannot absorb the electromagnetic wave, a surface of the metal object may reflect the electromagnetic wave, that is, the detection signal may be reflected, and the reflected detection signal may be a reflection signal.
Whether a moving target object exists in a first preset distance range is determined according to a plurality of detection signals transmitted by an electromagnetic wave communication channel and a plurality of received reflection signals, whether a target object exists around is determined according to a plurality of detection signals transmitted by the electromagnetic wave communication channel and a plurality of received reflection signals, if yes, the distance between the target object and an earphone is determined, then whether the distance between the target object and the earphone is within the first preset distance range is determined, if yes, the moving target object exists in the first preset distance range, and if not, the moving target object does not exist in the first preset distance range. The target object may be an object capable of reflecting electromagnetic waves, such as a vehicle. The plurality of detection signals may be at least two detection signals, and accordingly, the plurality of reflection signals may also be at least two reflection signals. The first preset distance range may be preset by the user according to actual conditions, and may be, for example, a range of 0 to 10 meters from the headset.
In the embodiment of the present invention, it may be detected whether the noise reduction function is enabled for the earphone, specifically, when the earphone is the noise reduction earphone, that is, when the earphone outputs the audio, the noise reduction function is turned on by default, and it may be detected whether the earphone outputs the audio, and if the audio is output, it may be determined that the noise reduction function is enabled for the earphone. When the earphone is used for outputting the audio needing noise reduction playing, the noise reduction function is started, whether the output audio is the audio needing noise reduction playing can be detected, and if yes, the earphone can be determined to start the noise reduction function. The invention is not limited to the manner of detecting whether the noise reduction function of the earphone is turned on.
And step 102, if a moving target object exists in the first preset distance range, closing the noise reduction function.
In the embodiment of the present invention, the noise reduction function is turned off, which may be noise reduction processing performed when the audio output by the headphone is cancelled, or noise reduction effects are eliminated by executing other methods, which is not limited in this respect. For example, the first preset distance range may be a range of 0 to 50 meters, and when the user wears the headset, if it is detected that the distance between the target object and the user is 80 meters, the noise reduction function is not turned off because 80 meters are not within the first preset distance range, and if it is detected that the distance between the target object and the user is 30 meters, the noise reduction function of the headset is turned off because 30 meters are within the first preset distance range.
To sum up, in the earphone control method provided in the embodiment of the present application, when the noise reduction function of the earphone is enabled, whether a moving target object exists in a first preset distance range is determined according to a plurality of detection signals transmitted by an electromagnetic wave communication channel and a plurality of received reflection signals, and if the moving target object exists in the first preset distance range, the noise reduction function is turned off. Under the condition that a user wears the earphone, whether a target object close to the periphery of the user exists or not is detected through the electromagnetic wave communication channel, and the noise reduction function of the earphone is turned off when the target object is detected, so that the dangerous condition caused by the fact that the user cannot notice the moving target object in time is avoided, and the safety of the user when the user wears the earphone is improved.
Optionally, the headset comprises an electromagnetic wave communication channel for transmitting the probe signal and receiving the reflected signal. The electromagnetic wave communication channel also comprises an audio processing channel, the audio processing channel is used for sending and receiving audio data, the electromagnetic wave communication channel can respectively send detection signals and receive reflected signals, and send and receive audio data, so that the earphone can send or receive the audio data to realize an audio communication function, and meanwhile, the earphone can detect whether a moving target object exists in a first preset distance range to realize a target object detection function. Alternatively, the first preset distance may be less than or equal to a communication distance of the electromagnetic wave communication channel. Alternatively, the plurality of detection signals may be two or more signals.
Optionally, the electromagnetic wave communication channel may be a communication channel sent by a communication method such as bluetooth communication or millimeter wave communication. Optionally, the electromagnetic wave communication channel may also include wired communication, in which case, the electromagnetic wave communication channel may be connected with an earphone line.
For example, in one embodiment of the present invention, the electromagnetic wave communication channel may implement bluetooth communication, in this case, the electromagnetic wave communication channel may include a first single-channel bluetooth chip and a first filter 1, etc., the first single-channel bluetooth chip is connected to the first filter 1, the audio processing channel may include a second single-channel bluetooth chip and a second filter 2, etc., the second single-channel bluetooth chip is connected to the second filter 2, as shown in fig. 2, the headset includes an antenna 3 and a channel-switchable radio frequency switch 4, one end of the radio frequency switch 4 is connected to the antenna 3, in a case where the other end of the radio frequency switch 4 is switched to be connected to the first filter 1, the electromagnetic wave communication channel may transmit and receive a probe signal, and in a case where the other end of the radio frequency switch 4 is switched to be connected to the second filter 2, the audio processing channel may transmit and receive audio data. Optionally, the radio frequency switch 4 may be a radio frequency switch capable of switching at a high speed, so that when the radio frequency switch 4 is switched, the switching time is very short, and a user of the earphone cannot perceive the switching process, thereby ensuring good tone quality experience of the user.
Optionally, as shown in fig. 2, the first single-channel bluetooth chip and the second single-channel bluetooth chip may be integrated into a dual-channel bluetooth chip 5, where the dual-channel bluetooth chip 5 has a peripheral circuit 6, and the peripheral circuit 6 is connected to the dual-channel bluetooth chip 5.
Optionally, the second single-channel bluetooth chip may adopt a bluetooth low energy chip, for example, the transmission power may be 0dbm (decibel to milliwatt), and the communication distance may be 10 meters at most.
Alternatively, the first single-channel bluetooth chip may be a high power bluetooth chip, for example, the transmission power may be 10dbm, the communication distance may be 100 meters at most, and the first preset distance may be less than or equal to 100 meters. Because the power consumption of first single channel bluetooth chip is far greater than the power consumption of second single channel bluetooth chip, and need to guarantee user's tone quality and experience, can control second single channel bluetooth chip in the operating condition of continuous communication, first single channel bluetooth chip is in the operating condition of intermittent type nature communication (namely the circulation work is long for the first time of communication (emitting the detecting signal in the first time) and stops the state that the second time of communication is long (stopping emitting the detecting signal in the second time), wherein, first single channel bluetooth chip carries out communication work in the time slot that second single channel bluetooth chip sent and received audio data for first single channel bluetooth chip carries out communication work and does not have the influence to user's tone quality and experience.
Optionally, the second duration may be greater than a preset multiple of the first duration, so that the earphone can save power consumption as much as possible while being capable of detecting the target object in time.
If the plurality of detection signals transmitted by the electromagnetic wave communication channel and the plurality of received reflection signals satisfy the preset condition, step 101 determines that a moving target object exists within a first preset distance range, and if the plurality of detection signals transmitted by the electromagnetic wave communication channel and the plurality of received reflection signals do not satisfy the preset condition, step 101 determines that the moving target object does not exist within the first preset distance range.
Specifically, the reflection signal may be an interference signal in the environment or a signal generated by reflection after the multiple detection signals reach the target object, and when the multiple reflection signals include the interference signal, the number of the multiple reflection signals is not equal to the number of the multiple detection signals.
Optionally, in this embodiment of the present invention, the determining whether a moving target object exists within the first preset distance range according to the multiple detection signals transmitted by the electromagnetic wave communication channel and the multiple received reflection signals in step 101 may include:
step 110, controlling an electromagnetic wave communication channel to transmit a plurality of detection signals in time slots for transmitting and receiving audio data; the plurality of detection signals gradually change at a first frequency difference and are different in radiation direction.
In this case, the antenna in fig. 2 may be a phased array antenna or other antenna capable of changing the radiation direction of a signal.
Because the electromagnetic wave communication channel is controlled to transmit a plurality of detection signals in the time slot for transmitting and receiving the audio data, the electromagnetic wave communication channel does not influence the transmission and the reception of the audio data when performing communication, namely, the electromagnetic wave communication channel does not influence the tone quality experience of a user when performing communication.
Alternatively, the electromagnetic communication channel may transmit multiple sounding signals in one or more time slots for transmitting and receiving audio data, which is not a limitation of the present invention.
Step 120, determining whether a frequency difference between any two of the plurality of reflection signals received by the electromagnetic wave communication channel matches a frequency difference between detection signals corresponding to the any two reflection signals, and determining whether a distance between the target object and the earphone is within the first preset distance range according to the plurality of detection signals and the plurality of reflection signals.
In this embodiment of the present invention, after the step 110 controls the electromagnetic wave communication channel to transmit the plurality of detection signals gradually changing according to the first frequency difference, because the plurality of detection signals have the specific first frequency difference, if the frequency difference between the plurality of reflection signals received by the electromagnetic wave communication channel matches with the first frequency difference of the plurality of detection signals, it may be determined that the plurality of reflection signals received by the electromagnetic wave communication channel are transmitted on the metal object by the plurality of detection signals, that is, the metal object exists in the environment where the user is located. It should be noted that many other signals exist in the environment, the frequencies of the other signals are often random, and the frequency difference between multiple other signals is also irregular, when the electromagnetic wave communication channel receives the reflected signals, it is determined whether the reflected signals are reflected signals reflected by the detection signal by determining the frequency difference between the reflected signals, that is, if the frequency difference between the reflected signals matches the first frequency difference, it may be determined that the reflected signals are reflected signals reflected by the detection signal, and if the frequency difference between the reflected signals does not match the first frequency difference, it may be determined that the reflected signals are other signals.
In the embodiment of the present invention, when the frequency difference between any two reflection signals in the plurality of reflection signals received by the electromagnetic wave communication channel matches the frequency difference between the detection signals corresponding to any two reflection signals, it may be determined that a target object exists around the earphone, and then the distance between the target object and the earphone may be determined by using the detection signals and the corresponding reflection signals, and it is determined whether the distance is within the first preset distance range.
For example, since the bluetooth module has a modulation characteristic, the bluetooth module may perform frequency hopping when transmitting a signal. Therefore, when detecting a vehicle, the present invention firstly sends a signal with a certain frequency through an electromagnetic wave communication channel, assuming that the frequency of the signal is f1, after a certain time, the frequency f1 becomes f2, and meanwhile, the frequency difference between f2 and f1 remains unchanged, assuming that the frequency difference between the two signals is Δ f, wherein Δ f can be controlled, that is, is a controllable parameter. On this basis, when the bluetooth sends out a signal, frequency hopping can be performed continuously, so that the frequency of each signal is different, but the frequency difference between the signals is fixed, therefore, the bluetooth headset can judge that the signal is a signal reflected by a metal object instead of other signals in the environment as long as the bluetooth headset can receive two signals with fixed frequency difference uninterruptedly, and the frequency difference Δ f between any two other signals in the environment is random.
Step 130, if the frequency difference is matched, the distance is within the first preset distance range, and the distance changes, it is determined that a moving target object exists within the first preset distance range.
In the embodiment of the present invention, whether the frequency differences are matched is determined, if the frequency differences are matched, it may be determined that a target object exists in the surrounding environment, that is, a vehicle exists near the headset, and then it is determined whether the distance between the target object and the headset is within a first preset distance, and finally, it may be determined whether the distances of the target object change at different times by periodically determining the distances of the target object, and if the distances change, it may be determined that a moving target object exists within the first preset distance range. Specifically, a plurality of probe signals may be periodically transmitted, and the distances between the target object and the earphones at different times may be determined based on the reflected signals matched with the probe signals.
In the embodiment of the present invention, because the radiation directions of the plurality of detection signals are different, the plurality of reflection signals are generated by reflecting the plurality of detection signals onto the metal object reaching a plurality of directions (i.e., a plurality of positions), so that it can be determined that the metal object moves between a plurality of positions, that is, it can be determined that the moving metal object is a moving target object.
Optionally, in this embodiment of the present invention, the determining the distance between the target object and the earphone according to the multiple detection signals and the multiple reflection signals in step 120 may include:
in step 210, a first time difference between the transmission time of a detection signal in the plurality of detection signals and the reception time of the corresponding reflection signal is determined.
Specifically, the first time difference value is a difference value obtained by subtracting the emission time of the detection signal from the reception time of the reflection signal. For example, if the transmission time of the probe signal is 10 points 42 minutes 13 seconds and the reception time of the reflected signal is 10 points 42 minutes 43 seconds, the first time difference value can be determined to be 30 seconds.
Step 220, determining the distance between the target object and the earphone according to the first time difference value and a preset electromagnetic wave transmission speed.
When the number of the detection signals and the reflection signals is multiple, the distance between the target object and the earphone when the reflection signals are received can be determined according to any emitted detection signals and the corresponding reflection signals.
Specifically, a preset electromagnetic wave transmission speed and a first time difference value may be input into a first preset formula to calculate a product of the time and the electromagnetic wave transmission speed, and then the product may be determined as a distance between the target object and the earphone. Wherein, the first predetermined formula may be:
L＝C·t 1 /2
wherein L is the distance between the target object and the earphone, C is the preset electromagnetic wave transmission speed which is a known quantity, and t 1 Is a first time difference value. In this way, it can be ensured that the larger the first time difference value is, the larger the calculated distance between the target object and the headphones is.
Since the detection signal and the reflection signal are both electromagnetic wave signals, step 220 may determine a transmission distance of the electromagnetic wave within the first time difference according to the first time difference and a transmission speed of the electromagnetic wave in the air, where a half of the transmission distance of the electromagnetic wave is a distance between the target object and the earphone.
Optionally, step 210 may determine the distance between the target object and the earphone when the reflected signal is received last according to the last transmitted probe signal and the corresponding reflected signal, so as to determine the latest distance between the target object and the earphone.
Specifically, under the condition that the distance between the target object and the earphone is smaller than or equal to a second preset distance, the fact that the distance between the target object and the earphone is smaller than or equal to a minimum safety distance is indicated, the target object has great threat to the personal safety of a user, the noise reduction function is turned off, the earphone user is reminded of avoiding the approaching target object in time, the earphone user can hear horn tones or whistle tones of the target object in time, and the probability that the target object threatens the personal safety of the user is reduced. The second preset distance may be determined according to a minimum distance that the target object can stop braking for a certain time (e.g., 2 minutes or other time) at a certain speed (e.g., 60 KM/hour or 80 KM/hour).
Optionally, the control method of the present invention may further include:
and step 40, if the moving target object exists in the first preset distance range, determining the speed of the target object according to the plurality of detection signals.
Step 40 may determine the velocity of the target object from the plurality of detection signals in any manner.
Accordingly, the step of turning off the noise reduction function may include:
and step 31, closing the noise reduction function under the condition that the distance between the target object and the earphone is smaller than or equal to a second preset distance and the speed of the target object is greater than a preset speed.
When the distance between the target object and the earphone is smaller than or equal to the second preset distance, it is indicated that the distance between the target object and the earphone is smaller than the minimum safety distance, and when the speed of the target object is greater than the preset speed, it is indicated that the speed of the target object is greater than the minimum safety speed, so that when the distance between the target object and the earphone is smaller than or equal to the second preset distance and the speed of the target object is greater than the preset speed, the threat of the target object to the personal safety of the user is far greater than the threat of the target object to the personal safety of the user when only the distance between the target object and the earphone is smaller than or equal to the second preset distance, at this moment, the step 31 turns off the noise reduction function, so as to prompt the earphone user to avoid the approaching target object in time and facilitate the earphone user to hear a horn sound or a whistle of the target object in time, reduce the probability that the target object threatens the personal safety of the user, and avoid the frequent turning off of the noise reduction function when only the distance between the target object and the earphone is smaller than or equal to the second preset distance, thereby improving the tone quality experience of the user. The preset speed may be determined according to a maximum speed at which the target object can stop within a certain time (e.g., 2 minutes or other time) within the second preset distance.
Optionally, the step 40 of determining the speed of the target object according to the plurality of detection signals may include:
in step 41, a first angular difference between a radiation direction of a previous detection signal and a radiation direction of a subsequent detection signal in the plurality of detection signals is determined.
Specifically, step 41 may determine the first angle difference between the radiation direction of the previous detection signal and the radiation direction of the next detection signal in the plurality of detection signals in any manner, which is not limited by the present invention.
And step 42, determining a first distance traveled by the target object within a second time difference value according to the first angle difference value and the second time difference value between the emission time of the previous detection signal and the emission time of the next detection signal.
For example, fig. 3 is a schematic diagram of a first distance of an earphone control method according to an embodiment of the present invention, as shown in fig. 3, P in fig. 3 is the first distance, 41 is a previous detection signal, 42 is a next detection signal, and 10 is an earphone.
And 43, determining the speed of the target object according to the first distance and the second time difference value.
Specifically, the velocity of the target object is equal to the first distance divided by the second time difference value.
Specifically, through steps 41 to 43, the velocity at which the target object moves from the first position, which is the position of the target object when the previous detection signal reaches the target object, to the second position, which is the velocity at which the position of the target object when the next detection signal reaches the target object, can be determined.
In the embodiment of the invention, because the Bluetooth can be a phased array antenna, the included angle theta between two transmitted detection signals can be calculated, and the moving speed of the target object near the earphone can be judged by simple geometric calculation.
In particular, embodiments of the present invention detect the presence of a target object around the headset, e.g., at t 1 The detection signal is emitted all the time and a target object exists around the earphone, and the detection signal is emitted again in a short time to detect the distance between the target object and the earphone, for example, the detection signal can be emitted periodically, that is, the detection signal can be emitted periodically at t 2 Constantly emitting a probe signal and detecting the distance between the target object and the earphone, t can be determined since Bluetooth can form a phased array antenna 1 Time and t 2 Emitting an included angle between the detection signals at any moment, predicting the advancing direction of the target object according to the included angle, and emitting the detecting signals according to t 1 Time and t 2 The included angle between moments and the distance from the target object to the earphone each time can be calculated by utilizing a trigonometric function 1 Time t 2 The distance traveled by the target object at the time.
Specifically, the difference between the first distance and the second time may be input into a second preset formula to calculate a ratio of the distance to the time, and then the product is determined as the moving speed of the target object. Wherein, the second predetermined formula may be:
v＝L′/t 2
wherein v is the moving speed of the target object, L' is the first distance traveled by the target object within the second time difference, t 2 Is based on the first angle difference and a second time difference between the transmission time of the previous detection signal and the transmission time of the next detection signal. In this way it can be ensured that the smaller the second time difference at the first distance, the larger the calculated movement speed.
To sum up, in the earphone control method provided in this embodiment of the present application, when the noise reduction function of the earphone is enabled, the electromagnetic wave communication channel is controlled to transmit a plurality of detection signals in the time slot for sending and receiving the audio data, where the plurality of detection signals gradually change at a first frequency difference and have different radiation directions, whether the frequency difference between any two reflection signals in the plurality of reflection signals received by the electromagnetic wave communication channel matches with the frequency difference between the detection signals corresponding to any two reflection signals is determined, whether the distance between the target object and the earphone is within a first preset distance range is determined according to the plurality of detection signals and the plurality of reflection signals, and if the frequency difference matches, and the distance is within the first preset distance range and the distance changes, it is determined that a moving target object exists within the first preset distance range, and finally, the noise reduction function is turned off. When a user wears the earphone, whether a target object close to the periphery of the user exists or not is detected through the electromagnetic wave communication channel, whether the vehicle moves or not and the moving speed of the vehicle can be determined, the noise reduction function of the earphone is turned off when the target object is detected, the dangerous situation caused by the fact that the user cannot notice the moving target object in time is avoided, and therefore safety of the user when the user wears the earphone is improved.
It should be noted that, in the earphone control method provided in the embodiment of the present application, the execution main body may be an earphone control device, or a control module in the earphone control device for executing a loaded earphone control method. In the embodiment of the present application, an example in which an earphone control device executes a method for loading an earphone is taken as an example, which illustrates that the embodiment of the present application provides an earphone control device.
Fig. 4 is a block diagram of a structure of an earphone control device according to an embodiment of the present invention, and as shown in fig. 4, an earphone according to an embodiment of the present invention may include an electromagnetic wave communication channel that transmits a detection signal and receives a reflection signal, and the earphone control device 50 may include:
a determining module 501, configured to determine whether a moving target object exists within a first preset distance range according to a plurality of detection signals transmitted by the electromagnetic wave communication channel and a plurality of received reflection signals when a noise reduction function of the headset is enabled;
a closing module 502, configured to close the denoising function if a moving target object exists within the first preset distance range.
To sum up, the earphone control device provided in the embodiment of the present application may determine whether a moving target object exists within a first preset distance range according to a plurality of detection signals transmitted by an electromagnetic wave communication channel and a plurality of received reflection signals when the noise reduction function of the earphone is enabled, and if a moving target object exists within the first preset distance range, turn off the noise reduction function. Under the condition that a user wears the earphone, whether a target object close to the periphery of the user exists or not is detected through the electromagnetic wave communication channel, the noise reduction function of the earphone is turned off when the target object is detected, the dangerous condition caused by the fact that the user cannot notice the moving target object timely is avoided, and therefore safety of the user when the user wears the earphone is improved.
Optionally, the electromagnetic wave communication channel includes an audio processing channel, and the audio processing channel is configured to send and receive audio data;
the determining module 501 includes:
a control unit for controlling the electromagnetic wave communication channel to transmit a plurality of sounding signals in time slots for transmitting and receiving audio data; the detection signals gradually change at a first frequency difference and have different radiation directions;
a determining unit, configured to determine whether a frequency difference between any two reflection signals in the multiple reflection signals received by the electromagnetic wave communication channel matches a frequency difference between detection signals corresponding to the any two reflection signals, and determine whether a distance between the target object and the headset is within the first preset distance range according to the multiple detection signals and the multiple reflection signals; and if the frequency difference is matched, the distance is within the first preset distance range and the distance is changed, determining that a moving target object exists within the first preset distance range.
Optionally, the determining module 501 further includes:
a first time difference value determining unit, configured to determine a first time difference value between a transmission time of a detection signal in the plurality of detection signals and a reception time of a corresponding reflection signal;
and the distance determining unit is used for determining the distance between the target object and the earphone according to the first time difference value and a preset electromagnetic wave transmission speed.
Optionally, the apparatus 50 further includes:
the speed determining module is used for determining the moving speed of the target object according to the plurality of detection signals if the moving target object exists in the first preset distance range;
the shutdown module includes:
and the closing unit is used for closing the noise reduction function under the condition that the moving speed of the target object is greater than a preset speed.
Optionally, the speed determination module includes:
a first angle difference determination unit configured to determine a first angle difference between a radiation direction of a previous detection signal and a radiation direction of a subsequent detection signal in the plurality of detection signals;
a first distance determining unit, configured to determine, according to the first angle difference and a second time difference between the emission time of the previous detection signal and the emission time of the subsequent detection signal, a first distance traveled by the target object within the second time difference;
and the speed determining unit is used for determining the moving speed of the target object according to the first distance and the second time difference value.
To sum up, the earphone control device provided in this embodiment of the present application, when the noise reduction function of the earphone is enabled, controls the electromagnetic wave communication channel to transmit a plurality of detection signals in the time slot for transmitting and receiving the audio data, where the plurality of detection signals gradually change at the first frequency difference and have different radiation directions, determines whether the frequency difference between any two reflection signals in the plurality of reflection signals received by the electromagnetic wave communication channel matches the frequency difference between the detection signals corresponding to any two reflection signals, and determines whether the distance between the target object and the earphone is within a first preset distance range according to the plurality of detection signals and the plurality of reflection signals, and if the frequency difference matches, and the distance is within the first preset distance range and the distance changes, determines that the target object moving within the first preset distance range exists, and finally, closes the noise reduction function. When a user wears the earphone, whether a target object close to the periphery of the user exists or not is detected through the electromagnetic wave communication channel, whether the vehicle moves or not and the moving speed of the vehicle can be determined, the noise reduction function of the earphone is turned off when the target object is detected, the dangerous situation caused by the fact that the user cannot notice the moving target object in time is avoided, and therefore safety of the user when the user wears the earphone is improved.
The earphone control device in the embodiment of the present application may be a stand-alone device, or may be a component, an integrated circuit, or a chip in the terminal. The device may be a mobile electronic device or a non-mobile electronic device, for example, the earphone control device may be an earphone itself.
The earphone control device provided in the embodiment of the present application can implement each process implemented by the method embodiments of fig. 1 to fig. 3, and is not described herein again to avoid repetition.
Optionally, an electronic device 600 is further provided in this embodiment of the present application, and includes a processor 610, a memory 609, and a program or an instruction stored in the memory 609 and capable of being executed on the processor 610, where the program or the instruction is executed by the processor 610 to implement each process of the above embodiment of the earphone control method, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.
It should be noted that the electronic device in the embodiment of the present application includes the mobile electronic device and the non-mobile electronic device described above.
Fig. 5 is a schematic diagram of a hardware structure of an electronic device implementing an embodiment of the present application.
The electronic device 600 includes, but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, a processor 610, and the like.
Those skilled in the art will appreciate that the electronic device 600 may further comprise a power supply (e.g., a battery) for supplying power to various components, and the power supply may be logically connected to the processor 610 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system. The electronic device structure shown in fig. 5 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description is omitted here.
The processor 610 is configured to determine whether a moving target object exists within a first preset distance range according to a plurality of detection signals transmitted by the electromagnetic wave communication channel and a plurality of received reflection signals, if the noise reduction function of the headset is enabled;
the processor 610 is configured to close the noise reduction function if a moving target object exists within the first preset distance range.
To sum up, in the earphone control method provided in the embodiment of the present application, when the noise reduction function of the earphone is enabled, whether a moving target object exists in a first preset distance range is determined according to a plurality of detection signals transmitted by an electromagnetic wave communication channel and a plurality of received reflection signals, and if the moving target object exists in the first preset distance range, the noise reduction function is turned off. Under the condition that a user wears the earphone, whether a target object close to the periphery of the user exists or not is detected through the electromagnetic wave communication channel, and the noise reduction function of the earphone is turned off when the target object is detected, so that the dangerous condition caused by the fact that the user cannot notice the moving target object in time is avoided, and the safety of the user when the user wears the earphone is improved.
It is to be understood that, in the embodiment of the present application, the input Unit 604 may include a Graphics Processing Unit (GPU) 6041 and a microphone 6042, and the Graphics Processing Unit 6041 processes image data of a still picture or a video obtained by an image capturing apparatus (such as a camera) in a video capture mode or an image capture mode. The display unit 606 may include a display panel 6061, and the display panel 6061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 607 includes a touch panel 6071 and other input devices 6072. A touch panel 6071, also referred to as a touch screen. The touch panel 6071 may include two parts of a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein. The memory 609 may be used to store software programs as well as various data including, but not limited to, application programs and an operating system. The processor 610 may integrate an application processor, which primarily handles operating systems, user interfaces, applications, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 610.
Optionally, an embodiment of the present application further provides an earphone, where the earphone includes an electromagnetic wave communication channel for transmitting a detection signal and receiving a reflection signal, the earphone further includes a processor, a memory, and a program or an instruction stored in the memory and executable on the processor, and when the program or the instruction is executed by the processor, the steps of the earphone control method are implemented.
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the embodiment of the earphone control method, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the embodiment of the earphone control method, and can achieve the same technical effect, and is not described here again to avoid repetition.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the present embodiments are not limited to those precise embodiments, which are intended to be illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the appended claims.
Claims (12)
1. An earphone control method, wherein the earphone comprises an electromagnetic wave communication channel for transmitting a probe signal and receiving a reflection signal, the control method comprising:
under the condition that the noise reduction function of the earphone is started, determining whether a moving target object exists in a first preset distance range according to a plurality of detection signals transmitted by the electromagnetic wave communication channel and a plurality of received reflection signals;
if a moving target object exists in the first preset distance range, closing the noise reduction function;
the method comprises the steps that a plurality of detection signals gradually changing at a first frequency difference are transmitted by an electromagnetic wave communication channel, and when the frequency difference between any two reflection signals in a plurality of reflection signals received by the electromagnetic wave communication channel is matched with the frequency difference between the detection signals corresponding to any two reflection signals, the target object around the earphone is determined to exist.
2. The control method according to claim 1, wherein the electromagnetic wave communication channel includes an audio processing channel for transmitting and receiving audio data;
the determining whether a moving target object exists in a first preset distance range according to a plurality of detection signals transmitted by the electromagnetic wave communication channel and a plurality of received reflection signals comprises:
controlling the electromagnetic wave communication channel to transmit a plurality of detection signals in time slots for transmitting and receiving audio data; the detection signals gradually change at a first frequency difference and have different radiation directions;
determining whether a frequency difference between any two of the plurality of reflection signals received by the electromagnetic wave communication channel matches a frequency difference between detection signals corresponding to the any two reflection signals, and determining whether a distance between the target object and the headset is within the first preset distance range according to the plurality of detection signals and the plurality of reflection signals;
and if the frequency difference is matched, the distance is within the first preset distance range and the distance is changed, determining that a moving target object exists within the first preset distance range.
3. The control method of claim 2, wherein said determining a distance between the target object and the headset from the plurality of probe signals and the plurality of reflected signals comprises:
determining a first time difference value between the emission time of a detection signal in the plurality of detection signals and the receiving time of a corresponding reflection signal;
and determining the distance between the target object and the earphone according to the first time difference value and a preset electromagnetic wave transmission speed.
4. The control method according to claim 2, characterized by further comprising:
if a moving target object exists in the first preset distance range, determining the moving speed of the target object according to the plurality of detection signals; the step of turning off the noise reduction function includes:
and closing the noise reduction function under the condition that the moving speed of the target object is greater than a preset speed.
5. The control method according to claim 4, wherein the determining a moving speed of the target object from the plurality of detection signals includes:
determining a first angle difference between a radiation direction of a previous detection signal and a radiation direction of a subsequent detection signal in the plurality of detection signals;
determining a first distance traveled by the target object within a second time difference value according to the first angle difference value and the second time difference value between the emission time of the previous detection signal and the emission time of the next detection signal;
and determining the moving speed of the target object according to the first distance and the second time difference value.
6. An earphone control device, characterized in that the earphone comprises an electromagnetic wave communication channel for transmitting a probe signal and receiving a reflected signal, the control device comprising:
the determining module is used for determining whether a moving target object exists in a first preset distance range according to a plurality of detection signals transmitted by the electromagnetic wave communication channel and a plurality of received reflection signals under the condition that the noise reduction function of the earphone is started; the method comprises the steps that an electromagnetic wave communication channel transmits a plurality of detection signals gradually changing at a first frequency difference, and when the frequency difference between any two reflection signals in a plurality of reflection signals received by the electromagnetic wave communication channel is matched with the frequency difference between the detection signals corresponding to any two reflection signals, it is determined that a target object exists around the earphone;
and the closing module is used for closing the noise reduction function if a moving target object exists in the first preset distance range.
7. The control device of claim 6, wherein the electromagnetic wave communication channel comprises an audio processing channel for transmitting and receiving audio data;
the determining module comprises:
a control unit for controlling the electromagnetic wave communication channel to transmit a plurality of sounding signals in time slots for transmitting and receiving audio data; the detection signals gradually change at a first frequency difference and have different radiation directions;
a determining unit, configured to determine whether a frequency difference between any two of the plurality of reflection signals received by the electromagnetic wave communication channel matches a frequency difference between detection signals corresponding to the any two reflection signals, and determine whether a distance between the target object and the earphone is within the first preset distance range according to the plurality of detection signals and the plurality of reflection signals; and if the frequency difference is matched, the distance is within the first preset distance range and the distance is changed, determining that a moving target object exists within the first preset distance range.
8. The control apparatus of claim 7, wherein the determining module further comprises:
a first time difference value determining unit, configured to determine a first time difference value between a transmission time of a detection signal in the plurality of detection signals and a reception time of a corresponding reflection signal;
and the distance determining unit is used for determining the distance between the target object and the earphone according to the first time difference value and a preset electromagnetic wave transmission speed.
9. The control device according to claim 7, characterized by further comprising:
the speed determining module is used for determining the moving speed of the target object according to the plurality of detection signals if the moving target object exists in the first preset distance range;
the shutdown module includes:
and the closing unit is used for closing the noise reduction function under the condition that the moving speed of the target object is greater than a preset speed.
10. The control apparatus of claim 9, wherein the speed determination module comprises:
a first angle difference determination unit configured to determine a first angle difference between a radiation direction of a previous detection signal and a radiation direction of a subsequent detection signal in the plurality of detection signals;
a first distance determining unit, configured to determine, according to the first angle difference and a second time difference between the emission time of the previous detection signal and the emission time of the subsequent detection signal, a first distance traveled by the target object within the second time difference;
and the speed determining unit is used for determining the moving speed of the target object according to the first distance and the second time difference value.
11. A headset comprising an electromagnetic wave communication channel for transmitting detection signals and receiving reflection signals, the headset further comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the headset control method according to any of claims 1-5.
12. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, carry out the steps of the headset control method according to any of claims 1-5.
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| CN113660574A (en) * | 2021-09-14 | 2021-11-16 | 歌尔科技有限公司 | Headset-based hazard detection method, device and computer-readable storage medium |
| CN115002598B (en) * | 2022-05-26 | 2024-02-13 | 歌尔股份有限公司 | Headset mode control method, headset device, head-mounted device and storage medium |
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| CN107920312A (en) * | 2017-11-30 | 2018-04-17 | 努比亚技术有限公司 | Headset control method, mobile terminal and storage medium based on ultrasonic wave |
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