CN117041853A - Device and method for detecting and quickly retrieving loss of low-power-consumption wireless earphone - Google Patents
Device and method for detecting and quickly retrieving loss of low-power-consumption wireless earphone Download PDFInfo
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- CN117041853A CN117041853A CN202311112315.0A CN202311112315A CN117041853A CN 117041853 A CN117041853 A CN 117041853A CN 202311112315 A CN202311112315 A CN 202311112315A CN 117041853 A CN117041853 A CN 117041853A
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- 238000011084 recovery Methods 0.000 claims description 7
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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
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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Abstract
The invention discloses a device and a method for detecting loss and quickly retrieving a wireless earphone with low power consumption, which belong to the technical field of ultra-wideband communication and comprise a common mode, a loss detection mode and a retrieving mode; the normal mode has the function of normal wireless earphone data transmission; the loss detection mode is that the mobile phone periodically compares the Bluetooth low-energy consumption signal intensity of the left ear earphone and the Bluetooth low-energy consumption signal intensity of the right ear earphone, checks whether the loss of the earphone exists, and triggers a low-power consumption working mode of the earphone once the loss of the earphone is detected; the retrieving mode is that the charging bin determines the directions of the left ear earphone and the right ear earphone through receiving UWB signals sent by the left ear earphone and the right ear earphone, the mobile phone determines the distance between the left ear earphone and the right ear earphone through comparing the relative signal strength of Bluetooth low energy consumption signals received by the left ear earphone and the right ear earphone, and the lost earphone is retrieved rapidly through direction information and distance information; the system has relatively low complexity and cost, and the method is simple and reliable and has great application value.
Description
Technical Field
The invention belongs to the technical field of ultra-wideband communication, and particularly relates to a device and a method for detecting and quickly retrieving loss of a low-power-consumption wireless earphone.
Background
The wireless earphone is widely existed in life and popular, and is touted and loved by people, the main reason is that the use method is very convenient, the complicated connecting wire is not needed like a wired earphone, the wireless earphone does not need to be connected with a sounding main body, and a user can wear the wireless earphone by directly taking the earphone without redundant operation; and secondly, the charging box is matched with the charging box, the charging box is replaced when the user does not use the charging box, and the charging box can be replaced when the user does not use the charging box to charge the charging box so as to ensure normal cruising. Because the earphone is a wireless earphone, the earphone is likely to be lost carelessly, if the earphone cannot be found and recovered in time, the electric quantity of the earphone, which is likely to be lost by noise, is lost, and the situation that the earphone cannot be recovered is caused. Therefore, on the premise of ensuring low power consumption, how to quickly sense that the earphone is lost and trigger the low power consumption mode of the lost earphone can be realized, and valuable time is won for recovering the earphone. And how to quickly retrieve the headset after confirming that the headset is lost is also one of the main requirements at present.
BLE technology is commonly used in wireless headsets because of its extremely low power consumption. However, in addition to data transmission, the additional functions of wireless headphones are being promoted, and related applications based on BLE signal strength are being widely studied. However, it is difficult to quickly retrieve the headset after finding that the headset is lost based on the signal strength alone. However, another technology, UWB technology, ultra wideband technology, is a carrierless communication technology that uses non-sinusoidal narrow pulses on the order of nanoseconds to transmit data, and thus occupies a wide range of frequency spectrum. Because of this characteristic, the positioning and angle measurement accuracy is high. Therefore, there is a need for a device and a method for detecting and quickly retrieving a lost wireless earphone with low power consumption, which integrate BLE with UWB technology, and quickly retrieve the lost earphone on the premise of ensuring low power consumption.
Disclosure of Invention
The invention aims to provide a device and a method for detecting and quickly retrieving the loss of a wireless earphone with low power consumption, which solve the problems that the wireless earphone is fast in power consumption and difficult to quickly retrieve after being lost in the technology.
In order to achieve the above purpose, the invention provides a low-power consumption wireless earphone loss detection and quick recovery device, which comprises a mobile phone, a charging bin, a left earphone and a right earphone; the mobile phone, the charging bin, the left ear earphone and the right ear earphone are all provided with Bluetooth low energy antenna, and the left ear earphone and the right ear earphone are all provided with UWB transmitting antenna, and the charging bin is provided with UWB receiving antenna.
Preferably, the mobile phone is used as a server for data processing, and the charging bin, the left ear earphone and the right ear earphone are controlled by the mobile phone.
Preferably, the number of UWB receiving antennas is not less than two.
A method for detecting loss and quickly retrieving wireless earphone with low power consumption comprises a common mode, a loss detection mode and a retrieving mode;
the normal mode has the function of normal wireless earphone data transmission;
the loss detection mode is that the mobile phone periodically compares the Bluetooth low-energy consumption signal intensity of the left ear earphone and the Bluetooth low-energy consumption signal intensity of the right ear earphone, checks whether the loss of the earphone exists, and triggers a low-power consumption working mode of the earphone once the loss of the earphone is detected;
the retrieving mode is that the charging bin determines the directions of the two earphones through receiving UWB signals sent by the left earphone and the right earphone, the mobile phone determines the distance between the left earphone and the right earphone through comparing the relative signal intensity of Bluetooth low energy consumption signals of the left earphone and the right earphone, and the lost earphone is retrieved rapidly through direction information and distance information.
Preferably, the specific flow of the loss detection mode is as follows:
s1, the mobile phone filters the received Bluetooth low-energy consumption signal intensity of the left ear earphone and the right ear earphone, and the specific calculation mode is as follows:
P Liir (n)＝P Liir (n-1)+ω c *(P L (n)-P Liir (n-1))
P Riir (n)＝P Riir (n-1)+ω c *(P R (n)-P Riir (n-1))
wherein P is Liir For output by left-ear earphone filtersSignal intensity, P L For the current mobile phone to detect the signal intensity of the left ear earphone, n is an integer and represents the time sequence relation, P Riir The signal intensity, P, of the output of the right ear earphone filter R For the current mobile phone to detect the signal intensity omega of the right ear earphone c Is the weight coefficient of the filter;
s2, the signal intensity P of the left ear earphone and the right ear earphone output by the filter Liir (n) and P Riir (n) calculating the signal energy difference between the two
ΔP LR (n)＝P Liir (n)-P Riir (n)
Wherein DeltaP LR Receiving the energy difference between the left ear earphone and the right ear earphone for the mobile phone;
by using DeltaP LR (n) comparing with a threshold value of the energy difference, and updating the counter, specifically as follows:
wherein C is LR Is a counter, P th P, the threshold of the energy difference th Positive value, P LR For energy differences exceeding threshold counter, C limit For the upper limit of the counter, C limit For positive values, min (x, y) is the one where x and y are smaller, max (x, y) is the one where x and y are larger, round () is the rounding operation;
s3, using a counter C LR And threshold C of counter th Comparing, judging whether the earphone is lost or not, wherein the specific process is as follows: when abs (C) LR )>C th When the earphone is lost, the earphone is determined to be lost; if C LR <0, prompting the left ear earphone to be lost, and triggering the left ear earphone to enter a low-power-consumption working mode; if C LR >0, prompting the loss of the right ear earphone, and triggering the right ear earphone to enter a low-power-consumption working mode; where abs () is an absolute value taking operation.
Preferably, the specific flow of the retrieving mode is as follows:
s1, the charging bin can respectively measure leftAngle value of earphone under charging bin coordinate systemAnd the angle value of the right ear earphone in the charging bin coordinate system +.>The angle information is uploaded to the mobile phone through BLE, the mobile phone owner holds or brings an earphone which is not lost, the position of the mobile phone owner is adjusted to keep the mobile phone owner and the lost earphone in the same direction, and the lost earphone is searched along the direction;
s2, after the loss direction of the earphone is determined, determining the distance or distance between the lost earphone and a host through signal intensity, and calculating the distance according to BLE signal intensity, wherein the distance is specifically as follows:
wherein Δd is the distance between the owner and the lost earphone, d init For the distance value between the owner and the non-lost earphone, P lost BLE signal strength, P, sent by lost earphone for mobile phone reception ref For the mobile phone to receive BLE signal strength and P sent by the earphone without loss lost And P ref All are values of the filter output in the loss detection mode.
Preferably, when the charging bin measures the angle values of the left ear earphone and the right ear earphone in the coordinate system of the charging bin, respectively, the charging bin needs to be placed stationary and kept motionless during the measurement.
Therefore, the device and the method for detecting and quickly retrieving the loss of the low-power-consumption wireless earphone have the following beneficial effects:
(1) The mobile phone is energized through the charging bin with the UWB function and the earphone, so that the mobile phone has the functions of earphone loss judgment and quick recovery;
(2) For the earphone loss, accurately judging which earphone is lost and triggering the earphone to be in a low-power consumption mode;
(3) When the UWB technology is used, the earphone only transmits UWB signals and does not receive UWB signals, so that the power consumption of the earphone is further reduced;
(4) By combining BLE and UWB technologies, the position of the lost earphone can be provided relatively easily while low power consumption is guaranteed;
(5) The system has relatively low complexity and cost, and the method is simple and reliable and has great application value.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a system diagram of a low power wireless headset loss detection and quick recovery apparatus and method of the present invention;
FIG. 2 is a flowchart of a loss detection process for headphones according to the present invention;
fig. 3 is a schematic diagram of the principle of measuring angle values under the coordinate system of the charging bin.
Detailed Description
Examples
The following detailed description of the embodiments of the invention, provided in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, a low-power wireless earphone loss detection and quick recovery device includes a mobile phone, a charging bin, a left earphone and a right earphone; cell-phone, storehouse, left ear earphone and right ear earphone all are provided with Bluetooth Low Energy (BLE) antenna, and left ear earphone and right ear earphone all are provided with UWB transmitting antenna, and the storehouse of charging is provided with UWB receiving antenna, and UWB receiving antenna's quantity is not less than two. The mobile phone is used as a data processing service end, and the charging bin, the left ear earphone and the right ear earphone are controlled by the mobile phone.
A method for detecting loss and quickly retrieving wireless earphone with low power consumption comprises a common mode, a loss detection mode and a retrieving mode;
the normal mode has the function of normal wireless earphone data transmission;
the loss detection mode is that the mobile phone periodically compares the Bluetooth low-energy consumption signal intensity of the left ear earphone and the Bluetooth low-energy consumption signal intensity of the right ear earphone, checks whether the loss of the earphone exists, and triggers a low-power consumption working mode of the earphone once the loss of the earphone is detected;
the retrieving mode is that the charging bin determines the directions of the two earphones through receiving UWB signals sent by the left earphone and the right earphone, the mobile phone determines the distance between the left earphone and the right earphone through comparing the relative signal intensity of Bluetooth low energy signals received by the left earphone and the right earphone, and the lost earphone is retrieved fast through direction information and distance information.
Referring to fig. 2, the specific flow of the loss detection mode is as follows:
s1, the mobile phone filters the received Bluetooth low-energy consumption signal intensity of the left ear earphone and the right ear earphone, and the specific calculation mode is as follows:
P Liir (n)＝P Liir (n-1)+ω c *(P L (n)-P Liir (n-1))
P Riir (n)＝P Riir (n-1)+ω c *(P R (n)-P Riir (n-1))
wherein P is Liir The signal intensity, P, of the output of the left ear earphone filter L For the current mobile phone to detect the signal intensity of the left ear earphone, n is an integer and represents the time sequence relation, P Riir The signal intensity, P, of the output of the right ear earphone filter R For the current mobile phone to detect the signal intensity omega of the right ear earphone c Is the weight coefficient of the filter; omega in this embodiment c ＝1/8。
S2, the signal intensity P of the left ear earphone and the right ear earphone output by the filter Liir (n) and P Riir (n) calculating the signal energy difference between the two
ΔP LR (n)＝P Liir (n)-P Riir (n)
Wherein DeltaP LR Receiving left ear earphone and right ear for mobile phoneEnergy difference of earphone;
by using DeltaP LR (n) comparing with a threshold value of the energy difference, and updating the counter, specifically as follows:
wherein C is LR Is a counter, P th P, the threshold of the energy difference th Positive value, P LR For energy differences exceeding threshold counter, C limit For the upper limit of the counter, C limit Is positive, min (x, y) is the smaller one of x and y, max (x, y) is the larger one of x and y, round () is the rounding operation, in this embodiment, P th ＝9dB，C limit ＝10；
S3, using a counter C LR And threshold C of counter th Comparing, judging whether the earphone is lost or not, wherein the specific process is as follows: when abs (C) LR )>C th When the earphone is lost, the earphone is determined to be lost; if C LR <0, prompting the left ear earphone to be lost, and triggering the left ear earphone to enter a low-power-consumption working mode; if C LR >0, prompting the loss of the right ear earphone, and triggering the right ear earphone to enter a low-power-consumption working mode; wherein abs () is an absolute value operation, in this embodiment, C th ＝5。
Referring to fig. 3, the specific flow of the retrieving mode is as follows:
s1, a charging bin calculates the time difference delta t between UWB signals and two UWB receiving antennas of the charging bin UWB And by time difference deltat UWB And the speed of light c light Calculating to obtain the distance difference delta d between the UWB signal and two UWB receiving antennas UWB ＝c light *Δt UWB And combines the distance d between two UWB receiving antennas ante Respectively calculating the angle value of the left ear earphone under the coordinate system of the charging binAnd the angle value of the right ear earphone in the charging bin coordinate system +.>The angle information is uploaded to the mobile phone through BLE, the mobile phone owner holds or brings an earphone which is not lost, the position of the mobile phone owner is adjusted to keep the mobile phone owner and the lost earphone in the same direction, and the lost earphone is searched along the direction;
s2, after the loss direction of the earphone is determined, determining the distance or distance between the lost earphone and a host through signal intensity, and calculating the distance according to BLE signal intensity, wherein the distance is specifically as follows:
wherein Δd is the distance between the owner and the lost earphone, d init For the distance value between the owner and the non-lost earphone, P lost BLE signal strength, P, sent by lost earphone for mobile phone reception ref For the mobile phone to receive BLE signal strength and P sent by the earphone without loss lost And P ref All are values of the filter output in the loss detection mode.
When the charging bin measures the angle values of the left ear earphone and the right ear earphone respectively in the coordinate system of the charging bin, the charging bin needs to be placed stationary and kept motionless during measurement.
Therefore, the device and the method for detecting and quickly retrieving the loss of the wireless earphone with low power consumption are adopted, and the mobile phone is energized by combining the BLE technology and the UWB technology, so that the functions of preventing the loss of the wireless earphone and quickly retrieving the lost wireless earphone are added to the mobile phone. Besides, the earphone only needs to transmit UWB signals and does not need to receive UWB signals when the loss of the earphone is detected, so that the power consumption of the wireless earphone is further reduced. The system has relatively low complexity and cost, and the method is simple and reliable and has great application value.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting it, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the invention can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the invention.
Claims (7)
1. The utility model provides a device that wireless earphone of low-power consumption lost detection and quick finding back which characterized in that: the portable earphone comprises a mobile phone, a charging bin, a left ear earphone and a right ear earphone; the mobile phone, the charging bin, the left ear earphone and the right ear earphone are all provided with Bluetooth low energy antenna, and the left ear earphone and the right ear earphone are all provided with UWB transmitting antenna, and the charging bin is provided with UWB receiving antenna.
2. The low power wireless headset loss detection and quick recovery apparatus of claim 1, wherein: the mobile phone is used as a data processing server, and the charging bin, the left ear earphone and the right ear earphone are controlled by the mobile phone.
3. The low power wireless headset loss detection and quick recovery apparatus of claim 1, wherein: the number of the UWB receiving antennas is not less than two.
4. A method for detecting and quickly retrieving loss of a low-power-consumption wireless earphone is characterized by comprising the following steps of: the method comprises a common mode, a loss detection mode and a recovery mode;
the normal mode has the function of normal wireless earphone data transmission;
the loss detection mode is that the mobile phone periodically compares the Bluetooth low-energy consumption signal intensity of the left ear earphone and the Bluetooth low-energy consumption signal intensity of the right ear earphone, checks whether the loss of the earphone exists, and triggers a low-power consumption working mode of the earphone once the loss of the earphone is detected;
the retrieving mode is that the charging bin determines the directions of the two earphones through receiving UWB signals sent by the left earphone and the right earphone, the mobile phone determines the distance between the left earphone and the right earphone through comparing the relative signal intensity of Bluetooth low energy consumption signals of the left earphone and the right earphone, and the lost earphone is retrieved rapidly through direction information and distance information.
5. The method for detecting and quickly retrieving the loss of the wireless headset with low power consumption according to claim 4, wherein the specific flow of the loss detection mode is as follows:
s1, the mobile phone filters the received Bluetooth low-energy consumption signal intensity of the left ear earphone and the right ear earphone, and the specific calculation mode is as follows:
P Liir (n)＝P Liir (n-1)+ω c *(P L (n)-P Liir (n-1))
P Riir (n)＝P Riir (n-1)+ω c *(P R (n)-P Riir (n-1))
wherein P is Liir The signal intensity, P, of the output of the left ear earphone filter L For the current mobile phone to detect the signal intensity of the left ear earphone, n is an integer and represents the time sequence relation, P Riir The signal intensity, P, of the output of the right ear earphone filter R For the current mobile phone to detect the signal intensity omega of the right ear earphone c Is the weight coefficient of the filter;
s2, the signal intensity P of the left ear earphone and the right ear earphone output by the filter Liir (n) and P Riir (n) calculating the signal energy difference between the two
ΔP LR (n)＝P Liir (n)-P Riir (n)
Wherein DeltaP LR Receiving the energy difference between the left ear earphone and the right ear earphone for the mobile phone;
by using DeltaP LR (n) comparing with a threshold value of the energy difference, and updating the counter, specifically as follows:
ifΔP LR (n)>P th
C LR ＝min(C LR +1,C limit )
elseifΔP LR (n)<-P th
C LR ＝max(C LR -1,-C limit )
else
C LR ＝round(C LR /2)
end
wherein C is LR Is a counter, P th P, the threshold of the energy difference th Positive value, P LR For energy differences exceeding threshold counter, C limit For the upper limit of the counter, C limit For positive values, min (x, y) is the one where x and y are smaller, max (x, y) is the one where x and y are larger, round () is the rounding operation;
s3, using a counter C LR And threshold C of counter th Comparing, judging whether the earphone is lost or not, wherein the specific process is as follows: when abs (C) LR )>C th When the earphone is lost, the earphone is determined to be lost; if C LR <0, prompting the left ear earphone to be lost, and triggering the left ear earphone to enter a low-power-consumption working mode; if C LR >0, prompting the loss of the right ear earphone, and triggering the right ear earphone to enter a low-power-consumption working mode; where abs () is an absolute value taking operation.
6. The method for detecting and quickly retrieving the loss of the wireless headset with low power consumption according to claim 5, wherein the method comprises the following steps: the specific flow of the retrieving mode is as follows:
s1, respectively measuring angle values of the left ear earphone under a charging bin coordinate system by a charging binAnd the angle value of the right ear earphone in the charging bin coordinate system +.>The angle information is uploaded to the mobile phone through BLE, the mobile phone owner holds or brings an earphone which is not lost, the position of the mobile phone owner is adjusted to keep the mobile phone owner and the lost earphone in the same direction, and the lost earphone is searched along the direction;
s2, after the loss direction of the earphone is determined, determining the distance or distance between the lost earphone and a host through signal intensity, and calculating the distance according to BLE signal intensity, wherein the distance is specifically as follows:
wherein Δd is the distance between the owner and the lost earphone, d init For the distance value between the owner and the non-lost earphone, P lost BLE signal strength, P, sent by lost earphone for mobile phone reception ref For the mobile phone to receive BLE signal strength and P sent by the earphone without loss lost And P ref All are values of the filter output in the loss detection mode.
7. The method for detecting and quickly retrieving the loss of the wireless headset with low power consumption according to claim 6, wherein the method comprises the following steps: when the charging bin measures the angle values of the left ear earphone and the right ear earphone respectively in the coordinate system of the charging bin, the charging bin needs to be placed stationary and kept motionless during measurement.
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| WO2022227767A1 (en) * | 2021-04-25 | 2022-11-03 | 荣耀终端有限公司 | Method and apparatus for finding wearable device |
| CN113423059A (en) * | 2021-06-21 | 2021-09-21 | 歌尔智能科技有限公司 | Equipment positioning method, device and system and readable storage medium |
| CN215897991U (en) * | 2021-09-07 | 2022-02-22 | 上海芯导电子科技股份有限公司 | Wireless Bluetooth headset, headset assembly and processing system |
| CN114339589A (en) * | 2021-11-17 | 2022-04-12 | 展讯通信（上海）有限公司 | Data processing method, device, apparatus, storage medium, and program |
| CN116359839A (en) * | 2023-03-29 | 2023-06-30 | 歌尔股份有限公司 | UWB product positioning method, device, medium and electronic equipment |
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