Miniature loudspeaker with off-line voice

Abstract

The invention belongs to the technical field of loudspeakers, and particularly relates to a miniature loudspeaker with off-line voice, which comprises a shell and an intelligent watch, a chip is fixedly mounted on the inner wall of the shell, a loudspeaking hole is formed in the bottom of the shell, an off-line voice system is arranged in the chip, and the loudspeaker is mounted in the intelligent watch; the off-line voice system comprises a voice receiving module, a voice burning module and a voice feedback module, the voice receiving module, the voice burning module and the voice feedback module are electrically connected with one another, and the voice receiving module is used for receiving voice sent by a user through a microphone and waking up the voice burning module. According to the miniature loudspeaker with the off-line voice, the voice is burnt in advance through the line, the burnt voice can be burnt again according to actual use, the loudspeaker can be awakened when the voice is received through the microphone, and a result is fed back through the loudspeaker.

Description

Technical Field

[0001] The invention belongs to the technical field of loudspeakers, and in particular relates to a miniature loudspeaker with off-line voice. Background Art

[0002] With the rapid development of science and technology, especially the continuous advancement of information technology, people's dependence on and demand for smart devices are increasing. Under this trend, as an important component of smart devices, the application scope of micro speakers has been greatly expanded. Nowadays, micro speakers are not only widely integrated in smartphones, becoming an indispensable element of people's daily communication and entertainment, but also play a key role in smart wearable devices, such as smart watches. When using smart watches, users often take off their watches and forget where they put them, so they need to find smart watches. At this time, smart watches may be offline, so users use voice to find the location of smart watches. Due to the distance and environmental humidity, when the smart watch feedbacks voice, the user cannot hear the sound clearly, which affects the search for smart watches. Summary of the invention

[0003] The object of the present invention is to provide a miniature speaker with offline voice to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a miniature speaker with offline voice, comprising a shell and a smart watch, wherein a chip is fixedly mounted on the inner wall of the shell, a speaker hole is arranged at the bottom of the shell, an offline voice system is arranged inside the chip, and the speaker is installed in the smart watch; the offline voice system comprises a voice receiving module, a voice burning module and a voice feedback module, wherein the voice receiving module, the voice burning module and the voice feedback module are electrically connected to each other, the voice receiving module is used to receive the voice emitted by the user through a microphone, and wake up the voice burning module, the voice burning module is used to burn the voice in advance for offline operation, and the burned voice has a function of re-burning according to actual use, and the voice feedback module is used to generate sound through the speaker for the burned voice so as to feedback it; the voice receiving module comprises a distance measuring unit, a humidity monitoring unit, a volume measuring unit and a feedback times unit, wherein the distance measuring unit, the humidity monitoring unit, the volume measuring unit and the feedback times unit are electrically connected to each other, and the volume measuring unit and the feedback times unit are both electrically connected to the voice feedback module.

[0005] The present invention further illustrates that the distance measuring unit is used to measure the distance between the user and the speaker based on the time from the sound emitted by the user to the sound received by the speaker, the humidity monitoring unit is used to monitor the ambient humidity, the volume measuring unit is used to measure the volume of the sound when the voice feedback module feeds back the voice, and the feedback times unit is used to measure the number of feedback times when the voice feedback module feeds back the voice.

[0006] The present invention further illustrates that the operation steps of the offline voice system include: step S1, the user searches for the smart watch and issues a voice command; step S2, receives the voice issued by the user through a microphone, and wakes up the voice burning module, and the voice burning module selects the burned voice; step S3, the voice feedback module generates sound through a speaker for the burned voice to be fed back, the smart watch makes a sound, and the user searches for the smart watch.

[0007] The present invention further illustrates that step S2 includes: step S2.1, measuring the distance between the user and the loudspeaker, and then adjusting the sound volume of the voice feedback module when feeding back the voice according to the distance between the user and the loudspeaker; step S2.2, measuring the attenuation of the sound emitted by the user in the process of reaching the loudspeaker according to the ambient humidity, and then optimizing the sound of the feedback voice according to the attenuation, and entering step S2.3 when the distance between the user and the loudspeaker exceeds the system setting value, and vice versa entering step S2.6; step S2.3, calculating the humidity segment according to the distance, the sound attenuation of the humidity segment gradually decreases, measuring the attenuated sound of all humidity segments, and optimizing the sound of the feedback voice for a second time; step S2.4, calculating the number of feedback times when the voice feedback module feeds back the voice according to the humidity segment; step S2.5, optimizing the sound of the feedback voice three times according to the number of feedback times when feeding back the voice; step S2.6, controlling the volume of the voice feedback module according to the finally optimized sound of the feedback voice.

[0008] The present invention further illustrates that in step S2.1: R is the volume of the feedback speech, R max is the maximum volume of the speaker, L is the distance between the user and the speaker, L max It is the maximum distance at which the speaker can receive sound. That is, the farther the distance between the user and the speaker, the louder the feedback voice.

[0009] The present invention further illustrates that in step S2.2: R1 is the sound of the feedback voice after optimization, S is the ambient humidity, S max is the maximum ambient humidity, M is the volume of the attenuated sound reaching the speaker after the user issues a command, and M maxIt is the maximum attenuated sound volume when reaching the speaker after the user issues a command; that is, the higher the ambient humidity, the greater the sound attenuation during sound transmission, and the greater the sound attenuation, the further the sound increases during feedback speech.

[0010] The present invention further illustrates that in step S2.2 and step S2.3: L1 is the distance of a single humidity attenuation section, and N is the humidity section of sound attenuation; R2 is the sound of the feedback voice after secondary optimization; after the user issues a command, the sound is affected by humidity during transmission and shows a gradually decreasing trend, that is, the feedback sound gradually increases.

[0011] The present invention further illustrates that in step S2.4: N=K, K is the number of times of feedback when feeding back speech.

[0012] The present invention further illustrates that in step S2.5:

[0013]

[0014] R3 is the sound of the feedback voice after three optimizations; that is, the volume of the feedback voice is further optimized, and the volume increases significantly.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention adopts an offline voice system, and when the distance between the user and the speaker is far, the sound of the feedback voice is enhanced, so that the sound emitted by the smart watch is loud, and the user can quickly find the smart watch; when the distance between the user and the speaker is close, the sound of the feedback voice is reduced, so that the smart watch can be found and the noise caused by excessive sound can be avoided, and at the same time, the speaker is prevented from being damaged by a large sound vibration frequency, thereby protecting the speaker; and the moisture content in the air will affect the propagation speed of the sound. The higher the humidity, the more moisture in the air, the slower the sound propagation speed, thereby increasing the sound of the feedback voice; when the ambient humidity is high, the user gradually weakens when transmitting the voice, and the sound transmission of the feedback voice is weakened due to the humidity, thereby further enhancing the sound of the feedback voice, avoiding the sound emitted by the smart watch being affected by the ambient humidity, thereby reducing the inability to quickly find the smart watch; on the contrary, the sound of the feedback voice is reduced, so that the volume of the smart watch is stable, and the smart watch is further protected;

[0016] Since the sound transmission of the speaker is affected by the ambient humidity and the distance, the humidity causes the sound to gradually weaken after each distance the sound is transmitted. Therefore, the ambient humidity and the distance between the user and the speaker are combined, and the sound of the speaker is gradually weakened when it is transmitted. Therefore, by strengthening the sound of the speaker, the speaker sound is optimized for the second time, and the volume is further increased, so that the sound can be smoothly transmitted to the user, avoiding the user not being able to hear the sound and failing to quickly find the smart watch. Moreover, since the distance between the user and the speaker is far, the sound attenuation segment generated according to the distance and ambient humidity causes multiple feedbacks during voice feedback, and the number of feedbacks is related to the distance and ambient humidity. The more humidity segments of sound attenuation, the more voice feedbacks there are, and the sound can be generated multiple times, which further facilitates the user to find the smart watch. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 is a schematic diagram of the bottom of the speaker of the present invention;

[0019] Figure 2 It is a schematic diagram of the module connection relationship of the offline voice system of the present invention;

[0020] Figure 3 It is a schematic diagram of the sound transmission process between the speaker of the present invention and the user;

[0021] Figure 4 is a schematic diagram of the internal structure of the speaker of the present invention;

[0022] Figure 5 It is a schematic diagram of the upper side of the loudspeaker of the present invention. DETAILED DESCRIPTION

[0023] The following is a further non-limiting detailed description of the technical solution of the present invention in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 3 The present invention provides a technical solution: a miniature speaker with offline voice, comprising a housing and a smart watch, wherein a chip is fixedly mounted on the inner wall of the housing, a speaker hole is arranged at the bottom of the housing, an offline voice system is arranged inside the chip, and the speaker is installed in the smart watch;

[0025] The offline voice system includes a voice receiving module, a voice recording module and a voice feedback module. The voice receiving module, the voice recording module and the voice feedback module are electrically connected to each other. The voice receiving module is used to receive the voice of the user through a microphone and wake up the voice recording module. The voice recording module is used to record the voice in advance for offline operation, and the recorded voice has the function of re-recording according to actual use. The voice feedback module is used to generate sound through a speaker to feed back the recorded voice.

[0026] The voice receiving module includes a distance measuring unit, a humidity monitoring unit, a volume measuring unit and a feedback times unit. The distance measuring unit, the humidity monitoring unit, the volume measuring unit and the feedback times unit are electrically connected to each other, and the volume measuring unit and the feedback times unit are both electrically connected to the voice feedback module.

[0027] The distance measuring unit is used to measure the distance between the user and the speaker based on the time from the sound emitted by the user to the sound received by the speaker. The humidity monitoring unit is used to monitor the ambient humidity. The volume measuring unit is used to measure the volume of the sound when the voice feedback module feeds back the voice. The feedback times unit is used to measure the number of feedback times when the voice feedback module feeds back the voice.

[0028] The operation steps of the offline voice system include:

[0029] Step S1: The user searches for the smart watch and issues a voice command;

[0030] Step S2, receiving the voice of the user through the microphone, and waking up the voice recording module, and the voice recording module selects the voice to be recorded;

[0031] Step S3: the voice feedback module generates sound through the speaker to feed back the recorded voice, the smart watch makes a sound, and the user looks for the smart watch.

[0032] Step S2 includes:

[0033] Step S2.1, measuring the distance between the user and the speaker, and then adjusting the volume of the voice feedback module when feeding back the voice according to the distance between the user and the speaker;

[0034] Step S2.2, measure the attenuation of the sound emitted by the user to the speaker according to the ambient humidity, and then optimize the sound of the feedback voice according to the attenuation. When the distance between the user and the speaker exceeds the system setting value, enter step S2.3, otherwise enter step S2.6;

[0035] Step S2.3, calculate the humidity segment according to the distance, the sound attenuation of the humidity segment gradually decreases, measure the attenuated sound of all humidity segments, and optimize the sound of the feedback voice for the second time;

[0036] Step S2.4, calculating the number of times the voice feedback module feeds back the voice according to the humidity segment;

[0037] Step S2.5, optimizing the sound of the feedback speech three times according to the number of feedbacks during the feedback speech;

[0038] Step S2.6: Control the volume of the voice feedback module according to the sound of the finally optimized feedback voice.

[0039] In step S2.1:

[0040] R is the volume of the feedback speech, R max is the maximum volume of the speaker, L is the distance between the user and the speaker, L max The maximum distance at which the speaker can receive sound, that is, the farther the distance between the user and the speaker, the louder the feedback voice.

[0041] If the distance between the user and the speaker is far, the sound of the feedback voice is enhanced so that the sound of the smart watch is loud and the user can quickly find the smart watch. If the distance between the user and the speaker is close, the sound of the feedback voice is reduced, which can not only find the smart watch but also avoid disturbing others by excessive sound. At the same time, the speaker is prevented from being damaged by a high frequency of sound vibration, thereby protecting the speaker.

[0042] In step S2.2:

[0043] R1 is the sound of the feedback voice after optimization, S is the ambient humidity, S max is the maximum ambient humidity, M is the volume of the attenuated sound reaching the speaker after the user issues a command, and M max It is the highest attenuated sound volume reaching the speaker after the user issues a command;

[0044] That is, the higher the ambient humidity, the stronger the sound attenuation during sound transmission, and the stronger the sound attenuation, the further the sound during feedback speech increases;

[0045] The moisture content in the air will affect the speed of sound propagation. The higher the humidity, the more moisture in the air and the slower the sound propagation speed, which makes the sound of feedback voice increase. In case of high humidity in the environment, the user's voice will gradually weaken, and the sound transmission of feedback voice will be weakened due to humidity, thereby further enhancing the sound of feedback voice, avoiding the sound emitted by the smart watch being affected by the environmental humidity, thereby reducing the speed of sound propagation and making it impossible to find the smart watch quickly. On the contrary, the sound of feedback voice will be reduced, making the volume of the smart watch stable, further protecting the smart watch.

[0046] In step S2.2 and step S2.3:

[0047] L1 is the distance of a single humidity attenuation section, and N is the humidity section of sound attenuation;

[0048]

[0049] R2 is the sound of the feedback speech after secondary optimization;

[0050] After the user issues a command, the sound transmission is affected by humidity and gradually decreases, that is, the feedback sound gradually increases;

[0051] Since the sound transmission of the speaker is affected by the ambient humidity and the distance, the humidity causes the sound to gradually weaken after each transmission distance. Therefore, the ambient humidity and the distance between the user and the speaker are combined. When the sound of the speaker is transmitted, the sound gradually weakens. By strengthening the sound of the speaker, the sound of the speaker is optimized for the second time, and the volume is further increased, so that the sound can be smoothly transmitted to the user, avoiding the user not being able to hear the sound and unable to quickly find the smart watch.

[0052] In step S2.4:

[0053] N = K, K is the number of times of feedback when giving feedback voice;

[0054] Since the distance between the user and the speaker is far, the sound attenuation segments generated according to the distance and ambient humidity will result in multiple feedbacks during voice feedback, and the number of feedbacks is related to the distance and ambient humidity. The more humidity segments of sound attenuation, the more voice feedbacks there are, and the sound can be generated multiple times, which further facilitates the user to find the smart watch.

[0055] In step S2.5:

[0056]

[0057] R3 is the sound of the feedback voice after three optimizations;

[0058] That is, the volume of the feedback voice is further optimized, and the volume is increased significantly;

[0059] Due to the increase in the sound attenuation segment, the sound is gradually weakened during transmission, so that when the speaker sends voice multiple times, the volume is greatly increased, fully ensuring that the user can quickly find the smart watch.

[0060] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0061] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A miniature speaker with offline voice, comprising a housing and a smart watch, characterized in that: A chip is fixedly mounted on the inner wall of the shell, a speaker hole is arranged at the bottom of the shell, an offline voice system is arranged inside the chip, and the speaker is installed in the smart watch; The offline voice system includes a voice receiving module, a voice recording module and a voice feedback module, wherein the voice receiving module, the voice recording module and the voice feedback module are electrically connected to each other, the voice receiving module is used to receive the voice emitted by the user through a microphone and wake up the voice recording module, the voice recording module is used to record the voice in advance for offline operation, and the recorded voice has the function of re-recording according to actual use, and the voice feedback module is used to generate sound through a speaker to feed back the recorded voice; The voice receiving module includes a distance measuring unit, a humidity monitoring unit, a volume measuring unit and a feedback times unit, wherein the distance measuring unit, the humidity monitoring unit, the volume measuring unit and the feedback times unit are electrically connected to each other, and the volume measuring unit and the feedback times unit are both electrically connected to the voice feedback module.

2. A miniature speaker with offline voice according to claim 1, characterized in that: The distance measuring unit is used to measure the distance between the user and the speaker according to the time from the sound emitted by the user to the sound received by the speaker. The humidity monitoring unit is used to monitor the ambient humidity. The volume measuring unit is used to measure the volume of the sound when the voice feedback module feeds back the voice. The feedback times unit is used to measure the number of feedback times when the voice feedback module feeds back the voice.

3. A miniature speaker with offline voice according to claim 2, characterized in that: The operation steps of the offline voice system include: Step S1: The user searches for the smart watch and issues a voice command; Step S2, receiving the voice of the user through the microphone, and waking up the voice recording module, and the voice recording module selects the voice to be recorded; Step S3: the voice feedback module generates sound through the speaker to feed back the recorded voice, the smart watch makes a sound, and the user looks for the smart watch.

4. A miniature speaker with offline voice according to claim 3, characterized in that: The step S2 comprises: Step S2.1, measuring the distance between the user and the speaker, and then adjusting the volume of the voice feedback module when feeding back the voice according to the distance between the user and the speaker; Step S2.2, measure the attenuation of the sound emitted by the user to the speaker according to the ambient humidity, and then optimize the sound of the feedback voice according to the attenuation. When the distance between the user and the speaker exceeds the system setting value, enter step S2.3, otherwise enter step S2.6; Step S2.3, calculate the humidity segment according to the distance, the sound attenuation of the humidity segment gradually decreases, measure the attenuated sound of all humidity segments, and optimize the sound of the feedback voice for the second time; Step S2.4, calculating the number of times the voice feedback module feeds back the voice according to the humidity segment; Step S2.5, optimizing the sound of the feedback speech three times according to the number of feedbacks during the feedback speech; Step S2.6: Control the volume of the voice feedback module according to the sound of the finally optimized feedback voice.

5. A miniature speaker with offline voice according to claim 4, characterized in that: In step S2.1: R is the volume of the feedback speech, R max is the maximum volume of the speaker, L is the distance between the user and the speaker, L max It is the maximum distance at which the speaker can receive sound. That is, the farther the distance between the user and the speaker, the louder the feedback voice.

6. A miniature speaker with offline voice according to claim 5, characterized in that: In step S2.2: R1 is the sound of the feedback voice after optimization, S is the ambient humidity, S max is the maximum ambient humidity, M is the volume of the attenuated sound reaching the speaker after the user issues a command, and M max It is the highest attenuated sound volume reaching the speaker after the user issues a command; That is, the higher the ambient humidity, the greater the sound attenuation during sound transmission, and the greater the sound attenuation, the greater the sound during feedback speech.

7. A miniature speaker with offline voice according to claim 6, characterized in that: In the steps S2.2 and S2.3: L1 is the distance of a single humidity attenuation section, and N is the humidity section of sound attenuation; R2 is the sound of the feedback speech after secondary optimization; After the user issues a command, the sound transmission is affected by humidity and shows a gradually decreasing trend, that is, the feedback sound gradually increases.

8. The miniature speaker with offline voice according to claim 7, characterized in that: In step S2.4: N=K, K is the number of times of feedback when giving feedback voice.

9. The miniature speaker with offline voice according to claim 8, characterized in that: In step S2.5: R3 is the sound of the feedback voice after three optimizations; That is, the volume of the feedback voice is further optimized, and the volume is increased significantly.

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