CN109831766B - Data transmission method, Bluetooth equipment assembly and Bluetooth communication system - Google Patents
Data transmission method, Bluetooth equipment assembly and Bluetooth communication system Download PDFInfo
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- CN109831766B CN109831766B CN201910203674.4A CN201910203674A CN109831766B CN 109831766 B CN109831766 B CN 109831766B CN 201910203674 A CN201910203674 A CN 201910203674A CN 109831766 B CN109831766 B CN 109831766B
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a method for transmitting data, a Bluetooth device assembly and a Bluetooth communication system, wherein the method comprises the following steps: establishing a first Bluetooth connection between a first Bluetooth device and an intelligent device, and respectively establishing a second Bluetooth connection between the first Bluetooth device and each other Bluetooth device in a plurality of Bluetooth devices so as to transmit communication parameters of the first Bluetooth connection to each other Bluetooth device, wherein the communication parameters enable the Bluetooth devices to disguise as the first Bluetooth device to continue to maintain the first Bluetooth connection; selecting one Bluetooth device from the plurality of Bluetooth devices to masquerade as a first Bluetooth device to maintain a first Bluetooth connection, wherein the Bluetooth device masquerade as the first Bluetooth device is dynamically selected; performing VAD detection by the microphone of the selected Bluetooth device; when the selected Bluetooth device determines that a voice signal is present, the voice signal is transmitted by the selected Bluetooth device to the smart device through the first Bluetooth connection.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method for transmitting data, a bluetooth device assembly, and a bluetooth communication system.
Background
With the pursuit of people for wireless life, audio equipment such as a real wireless earphone, a wireless sound box and the like enters a common family. Bluetooth is used as the most popular wireless connection method in wireless headsets and wireless sound boxes. Not only do intelligent devices (such as smart phones, personal computers, laptops, etc.) and bluetooth audio devices (and bluetooth devices, such as earphones or sound boxes, etc.) get rid of the constraint of wires, but also a plurality of audio devices (left and right ears of earphones or a plurality of sound boxes, etc.) can get rid of the constraint of wires, so as to realize real wireless connection.
The existing bluetooth audio devices supporting the voice recognition function, for example, a true wireless bluetooth headset, a wireless bluetooth sound box, etc., a microphone used for voice recognition is often fixed to a certain headset or sound box, and the headset or sound box is a main headset or main sound box which establishes a bluetooth connection with the smart device, which is a relatively limited way.
Disclosure of Invention
In view of this, the embodiments of the present invention provide a method for transmitting data, a bluetooth device assembly and a bluetooth communication system, so as to solve the following problems in the prior art: the existing microphone for voice recognition is often fixed to a certain Bluetooth audio device, the Bluetooth audio device and the intelligent device establish a main Bluetooth audio device connected through Bluetooth, even if the microphone is arranged on other slave Bluetooth audio devices, the operations of voice data collection, transmission and the like cannot be realized, the voice data interaction mode is high in limitation, and the certain Bluetooth audio device is easily exhausted.
In one aspect, an embodiment of the present invention provides a method for transmitting voice data, which is applied to a communication system including an intelligent device and a plurality of bluetooth devices, and the method includes:
establishing a first Bluetooth connection between a first Bluetooth device and an intelligent device, and respectively establishing a second Bluetooth connection between the first Bluetooth device and each other Bluetooth device in the plurality of Bluetooth devices so as to transmit communication parameters of the first Bluetooth connection to each other Bluetooth device, wherein the communication parameters enable the Bluetooth devices to masquerade as the first Bluetooth device to continuously maintain the first Bluetooth connection;
selecting one Bluetooth device from the plurality of Bluetooth devices to masquerade as the first Bluetooth device to maintain the first Bluetooth connection, wherein the Bluetooth device masquerade as the first Bluetooth device is dynamically selected based on the remaining power of each Bluetooth device, or the first Bluetooth device organizes other Bluetooth devices to masquerade as the first Bluetooth device in sequence according to a predetermined order;
performing VAD detection by a microphone of the selected Bluetooth device to determine whether a voice signal is present;
and when the selected Bluetooth device determines that the voice signal exists, transmitting the voice signal to the intelligent device through the first Bluetooth connection by the selected Bluetooth device.
In some embodiments, before transmitting the voice signal to the smart device via the first bluetooth connection by the selected bluetooth device, the method further comprises: detecting, by the selected Bluetooth device, whether the voice quality of the voice signal exceeds a preset voice quality; when the preset voice quality is not exceeded, the microphones of other Bluetooth devices are awakened to collect voice signals; and the selected Bluetooth equipment performs first processing on the received voice signals and transmits the processed voice signals to the intelligent equipment through the first Bluetooth connection, or the selected Bluetooth equipment transmits all the voice signals to the intelligent equipment through the first Bluetooth connection, wherein the first processing comprises at least one of noise reduction processing, fusion processing and selection of the voice signals with the highest signal-to-noise ratio.
In some embodiments, after transmitting all voice signals to the smart device through the first bluetooth connection by the selected bluetooth device, further comprising: and receiving a plurality of voice signals by the intelligent equipment, and carrying out first processing on the plurality of voice signals.
In some embodiments, the method further comprises: and carrying out specific voice detection on the voice signal after the first processing by the intelligent equipment.
In some embodiments, the first bluetooth connection is a normal bluetooth connection BT or a bluetooth low energy connection BLE; the second bluetooth connection is BT or BLE.
In another aspect, an embodiment of the present invention provides a method for transmitting data, which is applied to a communication system including an intelligent device and a plurality of bluetooth devices, and the method includes:
establishing a first Bluetooth connection between a first Bluetooth device and an intelligent device, and respectively establishing a second Bluetooth connection between the first Bluetooth device and each other Bluetooth device in the plurality of Bluetooth devices so as to transmit communication parameters of the first Bluetooth connection to each other Bluetooth device, wherein the communication parameters enable the Bluetooth devices to masquerade as the first Bluetooth device to continuously maintain the first Bluetooth connection;
selecting one Bluetooth device from the plurality of Bluetooth devices to masquerade as the first Bluetooth device to maintain the first Bluetooth connection, wherein the Bluetooth device is dynamically selected based on the residual capacity of each Bluetooth device, or the first Bluetooth device organizes other Bluetooth devices to masquerade as the first Bluetooth device in sequence according to a predetermined order;
selecting microphones of at least two Bluetooth devices from the plurality of Bluetooth devices to perform VAD detection respectively to determine whether voice signals exist, wherein the Bluetooth devices are dynamically selected based on the residual capacity of each Bluetooth device;
and when the selected Bluetooth device determines that a voice signal exists, transmitting the received voice signal to the Bluetooth device disguised as the first Bluetooth device, and transmitting the voice signal to the intelligent device through the first Bluetooth connection by the Bluetooth device disguised as the first Bluetooth device.
In some embodiments, transmitting the voice signal to a smart device over the first bluetooth connection by the bluetooth device disguised as the first bluetooth device comprises: and the Bluetooth device disguised as the first Bluetooth device performs first processing on the received voice signals and transmits the processed voice signals to the intelligent device through the first Bluetooth connection, wherein the first processing comprises at least one of noise reduction processing, fusion processing and selection of the voice signals with the highest signal-to-noise ratio.
In some embodiments, after the transmitting of the voice signal to the smart device through the first bluetooth connection by the bluetooth device disguised as the first bluetooth device, further comprises: and under the condition that the intelligent equipment receives a plurality of voice signals, the intelligent equipment performs first processing on the received plurality of voice signals, wherein the first processing comprises at least one of noise reduction processing, fusion processing and selection of the voice signal with the highest signal-to-noise ratio.
In some embodiments, the method further comprises: and carrying out specific voice detection on the voice signal after the first processing by the intelligent equipment.
In some embodiments, the first bluetooth connection is a normal bluetooth connection BT or a bluetooth low energy connection BLE; the second bluetooth connection is BT or BLE.
In another aspect, an embodiment of the present invention provides a bluetooth device assembly, where the bluetooth device assembly includes:
a first Bluetooth device configured to establish a first Bluetooth connection with a smart device and respectively establish a second Bluetooth connection with each other Bluetooth device of the plurality of Bluetooth devices to transmit communication parameters of the first Bluetooth connection to each other Bluetooth device, wherein the communication parameters enable the Bluetooth device to masquerade as the first Bluetooth device to continue to maintain the first Bluetooth connection;
other respective bluetooth devices configured to receive communication parameters of a first bluetooth connection after establishing a second bluetooth connection with the first bluetooth device; when selected as a bluetooth device masquerading as the first bluetooth device, maintaining the first bluetooth connection, performing VAD detection using a microphone thereof to determine whether a voice signal is present, and transmitting the voice signal to a smart device through the first bluetooth connection when it is determined that a voice signal is present; the Bluetooth device disguised as the first Bluetooth device is dynamically selected based on the remaining power of each Bluetooth device, or the first Bluetooth device organizes other Bluetooth devices to disguise as the first Bluetooth device in sequence according to a predetermined sequence.
In some embodiments, the bluetooth device masquerading as the first bluetooth device is configured to detect whether a voice quality of the voice signal exceeds a preset voice quality; when the preset voice quality is not exceeded, the microphones of other Bluetooth devices are awakened to collect voice signals; and performing first processing on the received voice signals, and transmitting the processed voice signals to the intelligent equipment through the first Bluetooth connection, or transmitting all the voice signals to the intelligent equipment through the first Bluetooth connection, wherein the first processing comprises at least one of noise reduction processing, fusion processing and selection of the voice signals with the highest signal-to-noise ratio.
In another aspect, an embodiment of the present invention provides a bluetooth device assembly, where the bluetooth device assembly includes:
a first Bluetooth device configured to establish a first Bluetooth connection with a smart device and respectively establish a second Bluetooth connection with each other Bluetooth device of the plurality of Bluetooth devices to transmit communication parameters of the first Bluetooth connection to each other Bluetooth device, wherein the communication parameters enable the Bluetooth device to masquerade as the first Bluetooth device to continue to maintain the first Bluetooth connection;
other respective bluetooth devices configured to receive communication parameters of a first bluetooth connection after establishing a second bluetooth connection with the first bluetooth device; when the Bluetooth device is selected to be disguised as the first Bluetooth device, maintaining the first Bluetooth connection, wherein the Bluetooth device is dynamically selected based on the remaining power of each Bluetooth device, or the first Bluetooth device organizes other Bluetooth devices to be disguised as the first Bluetooth device in sequence according to a predetermined order; and transmitting the received voice signal to the intelligent device through the first Bluetooth connection;
and other bluetooth devices configured to select microphones of at least two bluetooth devices from the plurality of bluetooth devices to perform VAD detection, respectively, to determine whether or not a voice signal exists, and transmit the received voice signal to a bluetooth device disguised as the first bluetooth device when the bluetooth device performing VAD detection determines that the voice signal exists, wherein the bluetooth device performing VAD detection is dynamically selected based on a remaining power of each bluetooth device.
In some embodiments, the bluetooth device masquerading as the first bluetooth device is configured to perform a first process on the received voice signals and transmit the processed voice signals to the smart device through the first bluetooth connection, wherein the first process includes at least one of a noise reduction process, a fusion process, and a selection of a voice signal with a highest signal-to-noise ratio.
In another aspect, an embodiment of the present invention provides a bluetooth communication system, including: the above-mentioned bluetooth device assembly; and a smart device configured to perform at least one of the following: performing first processing on a received voice signal, wherein the first processing comprises at least one of noise reduction processing, fusion processing and selection of the voice signal with the highest signal-to-noise ratio; and performing specific voice detection on the received voice signal.
According to the embodiment of the invention, the first Bluetooth device and other Bluetooth devices in the plurality of Bluetooth devices respectively establish the second Bluetooth connection to transmit the communication parameters to other Bluetooth devices, so that other Bluetooth devices can be dynamically disguised as the first Bluetooth device to communicate with the intelligent terminal, the power consumption balance of each Bluetooth device is realized, the connection mode is flexible, and various data interaction processes are provided.
Drawings
Fig. 1 is a flowchart of a method for transmitting data according to a first embodiment of the present invention;
fig. 2 is a flowchart of another method for transmitting data according to the first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a bluetooth communication system in an application scenario according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a bluetooth communication system in another application scenario provided in the first embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalent, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
To maintain the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known components of the invention have been omitted.
A first embodiment of the present invention provides a method for transmitting data, which is applied to a communication system including an intelligent device and a plurality of bluetooth devices, the method is a bluetooth connection condition in a listening mode, and the flow of the method is as shown in fig. 1, and the method includes steps S101 to S104:
s101, a first Bluetooth connection is established between a first Bluetooth device and an intelligent device, a second Bluetooth connection is respectively established between the first Bluetooth device and other Bluetooth devices in a plurality of Bluetooth devices, so that communication parameters of the first Bluetooth connection are transmitted to the other Bluetooth devices, wherein the communication parameters enable the Bluetooth devices to disguise as the first Bluetooth device to continuously maintain the first Bluetooth connection.
Because there are several bluetooth devices in this bluetooth communication system, the first bluetooth device that establishes bluetooth connection with the smart device is usually called as the master bluetooth device in several bluetooth devices, and of course, this master bluetooth device can be set up according to the circumstances, and can be adjusted in the circumstances that need, for example, when there are a plurality of bluetooth devices that are provided with microphones, any bluetooth device can be set up as the master bluetooth device.
The first bluetooth device establishes second bluetooth connections with other bluetooth devices respectively, and then can transmit the communication parameters to other bluetooth devices, so that the subsequent bluetooth devices can disguise the communication parameters into the first bluetooth device.
The first Bluetooth connection is a Bluetooth connection established between the Bluetooth equipment and the intelligent equipment; the second bluetooth connection is a bluetooth connection established between the bluetooth devices, and the second bluetooth connection is not a specific bluetooth connection but a type of bluetooth connection established between the bluetooth devices, and the bluetooth connections established between the master bluetooth device and different slave bluetooth devices can be referred to as second bluetooth connections, for example, the bluetooth connection established between the first bluetooth device and the bluetooth device a is the second bluetooth connection, and the bluetooth connection established between the first bluetooth device and the bluetooth device B is also the second bluetooth connection, but communication parameters used by the two different second bluetooth connections are different.
S102, selecting one Bluetooth device from the plurality of Bluetooth devices to masquerade as a first Bluetooth device to maintain a first Bluetooth connection, wherein the Bluetooth device masquerade as the first Bluetooth device is dynamically selected based on the residual electric quantity of each Bluetooth device, or the first Bluetooth device organizes other Bluetooth devices to masquerade as the first Bluetooth device in sequence according to a preset sequence.
VAD detection is performed by the microphone of the selected bluetooth device to determine whether a voice signal is present S103.
And S104, when the selected Bluetooth device determines that the voice signal exists, the selected Bluetooth device transmits the voice signal to the intelligent device through the first Bluetooth connection.
Before the selected Bluetooth device transmits the voice signal to the intelligent device through the first Bluetooth connection, the selected Bluetooth device can also detect whether the voice quality of the voice signal exceeds the preset voice quality; when the preset voice quality is not exceeded, the microphones of other Bluetooth devices are awakened to collect voice signals; the selected Bluetooth device carries out first processing on the received voice signals and transmits the processed voice signals to the intelligent device through first Bluetooth connection, or the selected Bluetooth device transmits all the voice signals to the intelligent device through the first Bluetooth connection, wherein the first processing comprises at least one of noise reduction processing, fusion processing and selection of the voice signals with the highest signal-to-noise ratio.
The selected bluetooth device is a bluetooth device disguised as a first bluetooth device to maintain the first bluetooth connection, and the bluetooth device wakes up other bluetooth devices to collect the voice signal when detecting that the voice quality of the received voice signal is low. After receiving the voice signals from other bluetooth devices, the selected bluetooth device can directly forward the voice signals to the intelligent device, or forward the voice signals to the intelligent device after first processing.
If the voice signals are directly forwarded to the intelligent device, after all the voice signals are transmitted to the intelligent device through the first Bluetooth connection by the selected Bluetooth device, the intelligent device receives the voice signals of the plurality of paths and carries out first processing on the voice signals of the plurality of paths.
No matter which mode is adopted, the voice signal received by the intelligent equipment can be ensured to be the voice signal with better voice quality. After the smart device obtains the voice signal with better voice quality, the smart device may perform specific voice detection on the first processed voice signal, so as to perform corresponding operations on the content detected by the voice.
The first bluetooth connection and the second bluetooth connection may be the same or different, and any one of the bluetooth connections may be BT or BLE, which is not specifically limited herein.
According to the embodiment of the invention, the first Bluetooth device and other Bluetooth devices in the plurality of Bluetooth devices respectively establish second Bluetooth connection to transmit communication parameters to other Bluetooth devices, so that other Bluetooth devices can be dynamically disguised as the first Bluetooth device to communicate with the intelligent terminal, power consumption balance of the Bluetooth devices is realized, the connection mode is flexible, and various data interaction processes are provided; in this embodiment, only the bluetooth device disguised as the first bluetooth device is used for VAD detection, which not only reduces power consumption, but also completes voice detection.
The first embodiment of the present invention further provides another method for transmitting data, which is also applied to a communication system including an intelligent device and a plurality of bluetooth devices, the method is a bluetooth connection situation in a forwarding mode, and the flow of the method is shown in fig. 2, and includes steps S201 to S204:
s201, a first Bluetooth connection is established between a first Bluetooth device and an intelligent device, a second Bluetooth connection is respectively established between the first Bluetooth device and other Bluetooth devices in a plurality of Bluetooth devices, so that communication parameters of the first Bluetooth connection are transmitted to the other Bluetooth devices, wherein the communication parameters enable the Bluetooth devices to disguise as the first Bluetooth device to continuously maintain the first Bluetooth connection.
Because there are several bluetooth devices in this bluetooth communication system, the first bluetooth device that establishes bluetooth connection with the smart device is usually called as the master bluetooth device in several bluetooth devices, and of course, this master bluetooth device can be set up according to the circumstances, and can be adjusted in the circumstances that need, for example, when there are a plurality of bluetooth devices that are provided with microphones, any bluetooth device can be set up as the master bluetooth device.
The first bluetooth device establishes second bluetooth connections with other bluetooth devices respectively, and then can transmit the communication parameters to other bluetooth devices, so that the subsequent bluetooth devices can disguise the communication parameters into the first bluetooth device.
The first Bluetooth connection is a Bluetooth connection established between the Bluetooth equipment and the intelligent equipment; the second bluetooth connection is a bluetooth connection established between the bluetooth devices, and the second bluetooth connection is not a specific bluetooth connection but a type of bluetooth connection established between the bluetooth devices, and the bluetooth connections established between the master bluetooth device and different slave bluetooth devices can be referred to as second bluetooth connections, for example, the bluetooth connection established between the first bluetooth device and the bluetooth device a is the second bluetooth connection, and the bluetooth connection established between the first bluetooth device and the bluetooth device B is also the second bluetooth connection, but communication parameters used by the two different second bluetooth connections are different.
S202, selecting one Bluetooth device from the plurality of Bluetooth devices to masquerade as a first Bluetooth device to maintain a first Bluetooth connection, wherein the Bluetooth devices are dynamically selected based on the residual electric quantity of each Bluetooth device, or the first Bluetooth device organizes other Bluetooth devices to masquerade as the first Bluetooth device in sequence according to a preset sequence.
And S203, selecting microphones of at least two Bluetooth devices from the plurality of Bluetooth devices to perform VAD detection respectively so as to determine whether voice signals exist, wherein the Bluetooth devices are dynamically selected based on the residual electric quantity of each Bluetooth device.
S204, when the selected Bluetooth device determines that the voice signal exists, the received voice signal is transmitted to the Bluetooth device disguised as the first Bluetooth device, and the Bluetooth device disguised as the first Bluetooth device transmits the voice signal to the intelligent device through the first Bluetooth connection.
Specifically, the bluetooth device disguised as the first bluetooth device may perform first processing on the received multiple voice signals and transmit the processed voice signals to the smart device through the first bluetooth connection in a process that the bluetooth device disguised as the first bluetooth device transmits the voice signals to the smart device through the first bluetooth connection, where the first processing includes at least one of noise reduction processing, fusion processing, and selection of a voice signal with a highest signal-to-noise ratio.
After a Bluetooth device disguised as a first Bluetooth device transmits a voice signal to an intelligent device through a first Bluetooth connection, under the condition that the intelligent device receives a plurality of voice signals, the intelligent device performs first processing on the received plurality of voice signals, wherein the first processing comprises at least one of noise reduction processing, fusion processing and selection of a voice signal with the highest signal-to-noise ratio. Subsequently, the intelligent device performs specific voice detection on the first processed voice signal.
The first bluetooth connection and the second bluetooth connection may be the same or different, and any one of the bluetooth connections may be BT or BLE, which is not specifically limited herein.
According to the embodiment of the invention, the first Bluetooth device and other Bluetooth devices in the plurality of Bluetooth devices respectively establish second Bluetooth connection so as to transmit the communication parameters to other Bluetooth devices, so that other Bluetooth devices can be dynamically disguised as the first Bluetooth device to communicate with the intelligent terminal, and the power consumption balance of each Bluetooth device is realized.
The present embodiment differs from the previous one in that: in this embodiment, microphones of a plurality of bluetooth devices are selected to perform VAD detection, instead of performing VAD detection only by using a bluetooth device disguised as a first bluetooth device, of course, the bluetooth device disguised as the first bluetooth device may be one of the selected plurality of bluetooth devices. Since there are microphones of a plurality of bluetooth devices for VAD detection and in the forwarding mode, it is necessary to forward a voice signal through a bluetooth device disguised as a first bluetooth device. The method of VAD detection by the microphones of a plurality of Bluetooth devices can improve the signal quality of the voice signals transmitted to the intelligent device.
The following describes the processes of the two methods for transmitting data in detail with reference to the accompanying drawings and specific examples.
In the embodiment of the invention, for a plurality of Bluetooth devices supporting the Voice recognition function, a certain device can be flexibly and dynamically selected to support Voice processing such as Voice Activity Detection (VAD) and the like, so that the balance of power consumption among the Bluetooth devices can be achieved. During connection, the first bluetooth device connected with the smart device is called a bluetooth master device, and the other bluetooth devices are bluetooth slave devices.
An application scenario of the embodiment of the present invention is shown in fig. 3, and the application scenario is a forwarding mode.
In the application scenario, the smart device first establishes a BT (bluetooth) or (BLE) bluetooth low energy connection with the master bluetooth device, and then selects a microphone on a certain bluetooth device as a voice input inlet. If the microphone on the main Bluetooth device is selected, the voice acquisition and processing module on the device is turned on, and processed voice is transmitted to the intelligent device through the BT or BLE. If the microphone on the slave Bluetooth device i is selected, BT or BLE connection is established between the master Bluetooth device and the slave Bluetooth device i, the Bluetooth slave device i opens a voice acquisition and processing module on the device, processed voice is transmitted to the master Bluetooth device through BT or BLE, and the processed voice is transmitted to the intelligent device through the master Bluetooth device.
In the above application scenario, when there is no voice interaction, a standby mode (i.e., a sleep state) is entered.
In one embodiment: in the standby mode, a signal collected by a microphone of a certain bluetooth device is used to detect whether there is voice (i.e., VAD) or whether a certain voice is detected. VAD is done at the bluetooth device, specific voice detection can be done at the bluetooth device, and specific voice detection can also be done at the smart device. If the bluetooth device is the master bluetooth device, the voice signal may be transmitted to the smart device through the BT or BLE connection. If the bluetooth device is a slave bluetooth device, the voice signal may be forwarded by the master bluetooth device to the smart device using the BT or BLE connection. The VAD detection is successful or the specific voice detection is successful, and then other voice processing modules are awakened, such as voice recognition and the like. In the standby mode, only one microphone of the Bluetooth device collects voice and performs corresponding voice processing such as VAD (voice activity detection) and the like, so that the power consumption in the standby mode is reduced.
In the implementation process, a microphone of which Bluetooth device is selected to collect voice and process the voice correspondingly, and an important measurement factor is the residual electric quantity of each Bluetooth device, so that the power consumption balance of each Bluetooth device is realized.
In another embodiment: in the standby mode, the microphone on each bluetooth device collects a signal that is used to detect whether there is speech (i.e., VAD), which is done at the bluetooth device. And if the voice detection is successful, the voice signal is transmitted to the intelligent equipment through BT or BLE connection by the master Bluetooth equipment, and if the voice detection is successful, the voice signal is transmitted to the intelligent equipment by the master Bluetooth equipment through BT or BLE connection, and then the intelligent equipment completes preprocessing such as voice signal noise reduction and specific voice detection. The speech recognition may be implemented in a smart device or in a cloud. In the standby mode, the microphones of all the Bluetooth devices collect voice and perform corresponding voice processing such as VAD (voice activity detection) and the like, so that on one hand, the power consumption in standby is reduced, and on the other hand, the signals collected by the microphones of the Bluetooth devices in different positions are used for VAD, thereby being beneficial to improving the VAD performance. In this embodiment, the master bluetooth device establishes BT or BLE connections with each slave bluetooth device, so that when the VAD of the slave bluetooth device j detects a voice signal, the slave bluetooth device j can quickly forward the voice signal to the smart device through the forwarding of the master bluetooth device.
Another application scenario of the embodiment of the present invention is shown in fig. 4, where the application scenario is a monitoring mode, and a dotted line in the figure indicates that each bluetooth device may establish a connection with an intelligent device.
In the application scenario, the smart device first establishes a BT (bluetooth) or (BLE) bluetooth low energy connection with the master bluetooth device, and then selects a microphone on a certain bluetooth device as a voice input inlet. If the microphone on the main Bluetooth device is selected, the voice acquisition and processing module on the device is turned on, and processed voice is transmitted to the intelligent device through the BT or BLE. If the microphone on the slave Bluetooth device i is selected, a BT (Bluetooth) or (BLE) Bluetooth low energy connection is established between the master Bluetooth device and the slave Bluetooth device i, and the Bluetooth master device sends information such as connection information, encryption information and frequency hopping information of a link between the Bluetooth master device and the intelligent device to the Bluetooth slave device i through the BT or BLE connection. Then the Bluetooth slave device i disguises itself as a master Bluetooth device to continue to be connected with the intelligent device through BT or BLE. At this point, the BT or BLE connection initially established with the master bluetooth device is also continued for the smart device. The Bluetooth slave device i can open a voice acquisition and processing module on the device and transmit the processed voice to the intelligent device through BT or BLE.
In the above application scenario, when there is no voice interaction, the device enters a standby mode.
In one embodiment: in the standby mode, a signal collected by a microphone of a certain bluetooth device is used to detect whether there is voice (i.e., VAD) or whether a certain voice is detected. VAD is done at the bluetooth device and specific voice detection can be done at the bluetooth device, or it can be done at the smart device through BT or BLE connection. The VAD detection is successful or the specific voice detection is successful, and then other voice processing modules are awakened, such as voice recognition and the like. In the standby mode, only one microphone of the Bluetooth device collects voice and performs corresponding voice processing such as VAD (voice activity detection) and the like, so that the power consumption in the standby mode is reduced. Wherein the specific speech detection comprises keyword detection.
In the implementation process, a microphone of which Bluetooth device is selected to collect voice and process the voice correspondingly, and an important measurement factor is the residual electric quantity of each Bluetooth device, so that the power consumption balance of each Bluetooth device is realized.
In this embodiment, in one case, the master bluetooth device organizes the slave bluetooth devices to masquerade as a master bluetooth device in a sequence to establish a BT or BLE connection with the smart device so that when a voice signal is detected by VAD detection or specific voice detection of the slave bluetooth device j, the slave bluetooth device j can quickly use the BT or BLE connection established with the smart device to transmit the voice signal to the smart device.
In another embodiment: in the standby mode, the microphone on each bluetooth device collects a signal that is used to detect whether there is speech (i.e., VAD), which is done at the bluetooth device. And the voice signal is transmitted to the intelligent equipment through BT or BLE connection after VAD detection is successful, and the intelligent equipment completes preprocessing such as voice signal noise reduction and specific voice detection. The speech recognition may be implemented in a smart device or in a cloud. In the standby mode, the microphones of all the Bluetooth devices collect voice and perform corresponding voice processing such as VAD (voice activity detection) and the like, so that on one hand, the power consumption in standby is reduced, and on the other hand, the signals collected by the microphones of the Bluetooth devices in different positions are used for VAD, thereby being beneficial to improving the VAD performance. In this embodiment, the master bluetooth device organizes the slave bluetooth devices to disguise as master bluetooth devices in a certain order to establish BT or BLE connections with the smart device, so that when the VAD of the slave bluetooth device j detects a voice signal, the slave bluetooth device j can quickly use the BT or BLE connections established with the smart device to transmit the voice signal to the smart device.
When VAD detection of a plurality of Bluetooth devices succeeds, the intelligent device receives the voice signals on the corresponding Bluetooth devices, and can perform fusion processing on the voice signals on the plurality of Bluetooth devices, such as noise reduction processing of multiple paths of voice signals, and then select the path of voice signal with the best signal-to-noise ratio to perform specific voice detection. This improves the performance of the specific speech detection and the subsequent speech recognition.
A second embodiment of the present invention provides a bluetooth communication system, including: an intelligent device and a Bluetooth device assembly consisting of a plurality of Bluetooth devices.
Bluetooth components can be divided into two different configurations, a bluetooth device component comprising:
the first Bluetooth device is configured to establish a first Bluetooth connection with the intelligent device, and respectively establish a second Bluetooth connection with other Bluetooth devices in the plurality of Bluetooth devices so as to transmit communication parameters of the first Bluetooth connection to the other Bluetooth devices, wherein the communication parameters enable the Bluetooth devices to disguise as the first Bluetooth device to continue to maintain the first Bluetooth connection;
other respective bluetooth devices configured to receive communication parameters of the first bluetooth connection after establishing the second bluetooth connection with the first bluetooth device; when the Bluetooth device is selected as the Bluetooth device disguised as the first Bluetooth device, maintaining the first Bluetooth connection, performing VAD detection using a microphone thereof to determine whether a voice signal exists, and transmitting the voice signal to the smart device through the first Bluetooth connection when it is determined that the voice signal exists; the Bluetooth device disguised as the first Bluetooth device is dynamically selected based on the residual capacity of each Bluetooth device, or the first Bluetooth device organizes other Bluetooth devices to disguise as the first Bluetooth device in sequence according to a preset sequence.
In implementation, a bluetooth device disguised as a first bluetooth device configured to detect whether a voice quality of a voice signal exceeds a preset voice quality; when the preset voice quality is not exceeded, the microphones of other Bluetooth devices are awakened to collect voice signals; and performing first processing on the received voice signals, and transmitting the processed voice signals to the intelligent equipment through a first Bluetooth connection, or transmitting all the voice signals to the intelligent equipment through the first Bluetooth connection, wherein the first processing comprises at least one of noise reduction processing, fusion processing and selection of the voice signals with the highest signal-to-noise ratio.
Another bluetooth device assembly includes:
the first Bluetooth device is configured to establish a first Bluetooth connection with the intelligent device, and respectively establish a second Bluetooth connection with other Bluetooth devices in the plurality of Bluetooth devices so as to transmit communication parameters of the first Bluetooth connection to the other Bluetooth devices, wherein the communication parameters enable the Bluetooth devices to disguise as the first Bluetooth device to continue to maintain the first Bluetooth connection;
other respective bluetooth devices configured to receive communication parameters of the first bluetooth connection after establishing the second bluetooth connection with the first bluetooth device; when the Bluetooth device is selected as the Bluetooth device masquerading as the first Bluetooth device, maintaining the first Bluetooth connection, wherein the Bluetooth device is dynamically selected based on the residual electric quantity of each Bluetooth device, or the first Bluetooth device organizes other Bluetooth devices to be masquerading as the first Bluetooth device in sequence according to a preset sequence; transmitting the received voice signal to the intelligent device through the first Bluetooth connection;
and other bluetooth devices configured to select microphones of at least two bluetooth devices from the plurality of bluetooth devices to perform VAD detection, respectively, to determine whether or not a voice signal exists, and transmit the received voice signal to the bluetooth device disguised as the first bluetooth device when the bluetooth device performing VAD detection determines that the voice signal exists, wherein the bluetooth device performing VAD detection is dynamically selected based on a remaining power of each bluetooth device.
In implementation, the bluetooth device disguised as a first bluetooth device is configured to perform a first process on the received multiple voice signals and transmit the processed voice signals to the smart device through the first bluetooth connection, wherein the first process includes at least one of a noise reduction process, a fusion process and a selection of a voice signal with a highest signal-to-noise ratio.
Correspondingly, the intelligent device is configured to execute at least one of the following processes: performing first processing on the received voice signals, wherein the first processing comprises at least one of noise reduction processing, fusion processing and selection of the voice signals with the highest signal-to-noise ratio; and performing specific voice detection on the received voice signal.
The first Bluetooth connection is a Bluetooth connection established between the Bluetooth equipment and the intelligent equipment; the second bluetooth connection is a bluetooth connection established between the bluetooth devices, and the second bluetooth connection is not a specific bluetooth connection but a type of bluetooth connection established between the bluetooth devices, and the bluetooth connections established between the master bluetooth device and different slave bluetooth devices can be referred to as second bluetooth connections, for example, the bluetooth connection established between the first bluetooth device and the bluetooth device a is the second bluetooth connection, and the bluetooth connection established between the first bluetooth device and the bluetooth device B is also the second bluetooth connection, but communication parameters used by the two different second bluetooth connections are different.
Moreover, although exemplary embodiments have been described herein, the scope thereof includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., of various embodiments across), adaptations or alterations. The elements of the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.
The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. In addition, in the above-described embodiments, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.
While the embodiments of the present invention have been described in detail, the present invention is not limited to these specific embodiments, and those skilled in the art can make various modifications and modifications of the embodiments based on the concept of the present invention, which fall within the scope of the present invention as claimed.
Claims (13)
1. A method for transmitting data in a communication system including a smart device and a plurality of bluetooth devices, the method comprising:
establishing a first Bluetooth connection between a first Bluetooth device and an intelligent device, and respectively establishing a second Bluetooth connection between the first Bluetooth device and each other Bluetooth device in the plurality of Bluetooth devices so as to transmit communication parameters of the first Bluetooth connection to each other Bluetooth device, wherein the communication parameters enable the Bluetooth devices to masquerade as the first Bluetooth device to continuously maintain the first Bluetooth connection;
selecting one Bluetooth device from the plurality of Bluetooth devices to masquerade as the first Bluetooth device to maintain the first Bluetooth connection, wherein the Bluetooth device masquerade as the first Bluetooth device is dynamically selected based on the remaining power of each Bluetooth device, or the first Bluetooth device organizes other Bluetooth devices to masquerade as the first Bluetooth device in sequence according to a predetermined order;
performing VAD detection by the selected microphone of the Bluetooth device disguised as the first Bluetooth device to determine whether a voice signal exists, further detecting whether the voice quality of the voice signal exceeds a preset voice quality when the voice signal exists, and waking up the microphones of other Bluetooth devices except the Bluetooth device disguised as the first Bluetooth device to acquire the voice signal when the voice quality does not exceed the preset voice quality;
and when the selected Bluetooth device disguising as the first Bluetooth device receives voice signals from other Bluetooth devices, transmitting the received voice signals to the intelligent device through the first Bluetooth connection, or performing first processing on a plurality of received voice signals and transmitting the processed voice signals to the intelligent device through the first Bluetooth connection, wherein the first processing comprises at least one of noise reduction processing, fusion processing and selection of the voice signals with the highest signal-to-noise ratio.
2. The method of claim 1, wherein after transmitting the received voice signal to a smart device over the first bluetooth connection by the selected bluetooth device disguised as the first bluetooth device, further comprising:
and receiving a plurality of voice signals by the intelligent equipment, and carrying out first processing on the plurality of voice signals.
3. The method of claim 1 or 2, wherein the method further comprises:
and carrying out specific voice detection on the voice signal after the first processing by the intelligent equipment.
4. The method according to claim 1, wherein the first Bluetooth connection is a normal Bluetooth connection (BT) or a Bluetooth Low energy connection (BLE); the second bluetooth connection is BT or BLE.
5. A method for transmitting data in a communication system including a smart device and a plurality of bluetooth devices, the method comprising:
establishing a first Bluetooth connection between a first Bluetooth device and an intelligent device, and respectively establishing a second Bluetooth connection between the first Bluetooth device and each other Bluetooth device in the plurality of Bluetooth devices so as to transmit communication parameters of the first Bluetooth connection to each other Bluetooth device, wherein the communication parameters enable the Bluetooth devices to masquerade as the first Bluetooth device to continuously maintain the first Bluetooth connection;
selecting one Bluetooth device from the plurality of Bluetooth devices to masquerade as the first Bluetooth device to maintain the first Bluetooth connection, wherein the Bluetooth device is dynamically selected based on the residual capacity of each Bluetooth device, or the first Bluetooth device organizes other Bluetooth devices to masquerade as the first Bluetooth device in sequence according to a predetermined order;
selecting microphones of at least two Bluetooth devices from the plurality of Bluetooth devices to perform VAD detection respectively to determine whether voice signals exist, wherein the Bluetooth devices are dynamically selected based on the residual capacity of each Bluetooth device in the plurality of Bluetooth devices;
and when the selected Bluetooth device for VAD detection determines that a voice signal exists, transmitting the received voice signal to the Bluetooth device disguised as the first Bluetooth device, and transmitting the voice signal to the intelligent device through the first Bluetooth connection by the Bluetooth device disguised as the first Bluetooth device.
6. The method of claim 5, wherein transmitting the voice signal to a smart device over the first Bluetooth connection by the Bluetooth device disguised as the first Bluetooth device comprises:
and the Bluetooth device disguised as the first Bluetooth device performs first processing on the received voice signals and transmits the processed voice signals to the intelligent device through the first Bluetooth connection, wherein the first processing comprises at least one of noise reduction processing, fusion processing and selection of the voice signals with the highest signal-to-noise ratio.
7. The method of claim 5, wherein after transmitting the voice signal to a smart device over the first Bluetooth connection by the Bluetooth device disguised as the first Bluetooth device, further comprising:
and under the condition that the intelligent equipment receives a plurality of voice signals, the intelligent equipment performs first processing on the received plurality of voice signals, wherein the first processing comprises at least one of noise reduction processing, fusion processing and selection of the voice signal with the highest signal-to-noise ratio.
8. The method of claim 6 or 7, wherein the method further comprises:
and carrying out specific voice detection on the voice signal after the first processing by the intelligent equipment.
9. The method according to claim 5, wherein the first Bluetooth connection is a normal Bluetooth connection (BT) or a Bluetooth Low energy connection (BLE); the second bluetooth connection is BT or BLE.
10. A bluetooth device assembly, characterized in that the bluetooth device assembly comprises several bluetooth devices, wherein:
a first Bluetooth device configured to establish a first Bluetooth connection with a smart device and respectively establish a second Bluetooth connection with each other Bluetooth device of the plurality of Bluetooth devices to transmit communication parameters of the first Bluetooth connection to each other Bluetooth device, wherein the communication parameters enable the Bluetooth device to masquerade as the first Bluetooth device to continue to maintain the first Bluetooth connection;
other respective bluetooth devices, which are configured to,
after establishing a second Bluetooth connection with a first Bluetooth device, receiving communication parameters of the first Bluetooth connection; when the Bluetooth device is selected as the Bluetooth device disguised as the first Bluetooth device, maintaining the first Bluetooth connection, using a microphone of the first Bluetooth device to perform VAD detection to determine whether a voice signal exists, further detecting whether the voice quality of the voice signal exceeds a preset voice quality when the voice signal exists, and waking up the microphones of other Bluetooth devices except the Bluetooth device disguised as the first Bluetooth device to acquire the voice signal when the preset voice quality is not exceeded;
when the selected Bluetooth device disguising as the first Bluetooth device receives voice signals from other Bluetooth devices, the received voice signals are transmitted to the intelligent device through the first Bluetooth connection, or first processing is carried out on the received voice signals, and the processed voice signals are transmitted to the intelligent device through the first Bluetooth connection, wherein the first processing comprises at least one of noise reduction processing, fusion processing and selection of the voice signals with the highest signal-to-noise ratio;
the Bluetooth device disguised as the first Bluetooth device is dynamically selected based on the remaining power of each Bluetooth device, or the first Bluetooth device organizes other Bluetooth devices to disguise as the first Bluetooth device in sequence according to a predetermined sequence.
11. A bluetooth device assembly, characterized in that the bluetooth device assembly comprises several bluetooth devices, wherein:
a first Bluetooth device configured to establish a first Bluetooth connection with a smart device and respectively establish a second Bluetooth connection with each other Bluetooth device of the plurality of Bluetooth devices to transmit communication parameters of the first Bluetooth connection to each other Bluetooth device, wherein the communication parameters enable the Bluetooth device to masquerade as the first Bluetooth device to continue to maintain the first Bluetooth connection;
other respective bluetooth devices configured to receive communication parameters of a first bluetooth connection after establishing a second bluetooth connection with the first bluetooth device; when the Bluetooth device is selected to be disguised as the first Bluetooth device, maintaining the first Bluetooth connection, wherein the Bluetooth device is dynamically selected based on the remaining power of each Bluetooth device, or the first Bluetooth device organizes other Bluetooth devices to be disguised as the first Bluetooth device in sequence according to a predetermined order; and transmitting the received voice signal to the intelligent device through the first Bluetooth connection;
the method comprises the steps of selecting microphones of at least two Bluetooth devices from a plurality of Bluetooth devices to respectively carry out VAD detection so as to determine whether voice signals exist, and transmitting the received voice signals to the Bluetooth devices disguised as the first Bluetooth device when the Bluetooth devices carrying out VAD detection determine that the voice signals exist, wherein the Bluetooth devices carrying out VAD detection are dynamically selected based on the residual electric quantity of each Bluetooth device in the plurality of Bluetooth devices.
12. The Bluetooth device assembly of claim 11,
the Bluetooth device disguised as the first Bluetooth device is configured to perform a first process on the received voice signals and transmit the processed voice signals to the intelligent device through the first Bluetooth connection, wherein the first process includes at least one of a noise reduction process, a fusion process and a selection of a voice signal with a highest signal-to-noise ratio.
13. A bluetooth communication system, comprising:
the bluetooth device assembly of any one of claims 10 to 12; and
a smart device configured to perform at least one of the following:
performing first processing on a received voice signal, wherein the first processing comprises at least one of noise reduction processing, fusion processing and selection of the voice signal with the highest signal-to-noise ratio; and performing specific voice detection on the received voice signal.
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