CN113253244A - TWS earphone distance sensor calibration method, equipment and storage medium - Google Patents

TWS earphone distance sensor calibration method, equipment and storage medium Download PDF

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Publication number
CN113253244A
CN113253244A CN202110370524.XA CN202110370524A CN113253244A CN 113253244 A CN113253244 A CN 113253244A CN 202110370524 A CN202110370524 A CN 202110370524A CN 113253244 A CN113253244 A CN 113253244A
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distance sensor
value
field test
difference
test value
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CN113253244B (en
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赵磊
冷明星
王丽
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Shenzhen Horn Audio Co Ltd
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Shenzhen Horn Audio Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/497—Means for monitoring or calibrating
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Otolaryngology (AREA)
  • General Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Optical Distance (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The application discloses a TWS headset distance sensor calibration method, equipment and storage medium. The calibration method of the TWS earphone distance sensor comprises the following steps: the method comprises the steps of obtaining an initial near-field test value and a first far-field test value detected by a distance sensor, calculating a first difference value of the initial near-field test value and the first far-field test value, and adjusting a set parameter value of the distance sensor if the first difference value is larger than or equal to a first preset threshold value. The calibration of the distance sensor is completed by comparing the difference value between the near-field test value and the far-field test value and adjusting the setting parameter value of the distance sensor according to the difference value, so that the accuracy of the wearing detection function of the TWS earphone in and out of the ear is improved.

Description

TWS earphone distance sensor calibration method, equipment and storage medium
Technical Field
The present application relates to the field of TWS headset detection technologies, and in particular, to a method, device, and storage medium for calibrating a TWS headset distance sensor.
Background
The TWS earphone detects the use state of the earphone by using the distance sensor, so that the effect of different preset functions can be realized when the condition that a user wears the earphone is detected. With the application of the TWS headset distance approach sensing technology becoming wider and wider, the requirement for performing calibration test on the distance sensor before delivery from a factory becomes higher and higher. In the related art, the performance of the distance sensor is detected only according to the difference value between the near field and the far field of the sensor and the gray card, but the detection method is rough, so that the earphone is easy to have abnormal wearing and detecting functions in and out of the ear in the actual use process.
Disclosure of Invention
The present application is directed to solving at least one of the problems in the prior art. Therefore, the calibration method for the TWS earphone distance sensor is provided, the distance sensor can be calibrated according to the measurement result, and the accuracy of the in-ear and out-ear wearing detection function is improved.
The TWS headset distance sensor calibration method according to the embodiment of the first aspect of the application comprises the following steps: acquiring an initial near-field test value and a first far-field test value detected by a distance sensor; calculating a first difference between the initial near-field test value and the first far-field test value; and if the first difference is larger than or equal to a first preset threshold value, adjusting a setting parameter value of the distance sensor.
According to the calibration method of the TWS earphone distance sensor, the method has the following beneficial effects: the calibration of the distance sensor is completed by comparing the difference value between the near-field test value and the far-field test value and adjusting the setting parameter value of the distance sensor according to the difference value, so that the accuracy of the wearing detection function of the TWS earphone in and out of the ear is improved.
According to some embodiments of the present application, if the first difference is greater than or equal to a first preset threshold, the step of adjusting the setting parameter value of the distance sensor includes: and if the first difference is larger than or equal to a first preset threshold value and the first difference is smaller than or equal to a second preset threshold value, adjusting the gain of the distance sensor.
According to some embodiments of the present application, the step of adjusting the gain of the distance sensor specifically comprises: within the preset times, adjusting the gain of the distance sensor according to a preset gain value; and re-detecting the adjusted first difference value.
According to some embodiments of the present application, if the first difference is greater than or equal to a first preset threshold, the step of adjusting the setting parameter value of the distance sensor further includes: and if the first difference is larger than the second preset threshold, adjusting the offset of the distance sensor.
According to some embodiments of the present application, the step of adjusting the offset of the distance sensor specifically includes: and setting the offset of the distance sensor as a second difference value of the first far-field test value and a preset reference.
According to some embodiments of the application, the TWS headset distance sensor calibration method further comprises: acquiring a second near-field test value; and if the second near field test value is larger than a third preset threshold value, setting an in-ear threshold value and an out-of-ear threshold value according to the second near field test value.
According to some embodiments of the present application, the step of calculating a first difference value between the initial near-field test value and the first far-field test value further comprises: and if the first difference is smaller than a first preset threshold value, ending the operation.
A TWS headset distance sensor calibration apparatus according to an embodiment of the second aspect of the present application includes: at least one processor, and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions that are executed by the at least one processor, so that the at least one processor, when executing the instructions, implements the TWS headset distance sensor calibration method according to the embodiment of the first aspect.
According to a third aspect embodiment of the present application, there is provided a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the TWS headset distance sensor calibration method according to the first aspect embodiment.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
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The present application is further described with reference to the following figures and examples, in which:
FIG. 1 is a flow chart of a TWS headset distance sensor calibration method according to an embodiment of the present application;
FIG. 2 is a flow chart of a TWS headset distance sensor calibration method according to another embodiment of the present application;
FIG. 3 is a flow chart of a TWS headset distance sensor calibration method according to another embodiment of the present application;
fig. 4 is a flowchart of a TWS headset distance sensor calibration method according to another embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, if there are first and second described only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features or the precedence of the indicated technical features is implicitly indicated or implied.
In the description of the present application, unless otherwise expressly limited, terms such as set, mounted, connected and the like should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the present application by combining the detailed contents of the technical solutions.
Some embodiments, referring to fig. 1, the present application proposes a TWS headset distance sensor calibration method, including:
s100, acquiring an initial near field test value and a first far field test value detected by a distance sensor;
s200, calculating a first difference value between the initial near-field test value and the first far-field test value;
and S300, if the first difference value is larger than or equal to a first preset threshold value, adjusting a setting parameter value of the distance sensor.
In a specific example, the distance sensor is an infrared sensor, an infrared radiation source of the infrared sensor is used for emitting modulated light pulses, reflected infrared light is detected through a set photodiode, and the distance between the object to be detected and the infrared sensor can be obtained according to the intensity of the detected infrared light.
When the distance sensor is measured and calibrated, the ash card is clamped by the movable clamp through the ash card reflected light signals, the distance between the ash card and the distance sensor is changed through the movement of the clamp, and therefore the near field test value and the far field test value of the distance sensor are obtained. In an example, the near-field test value is a test value of the distance sensor when the distance between the gray card and the distance sensor is 1.25 cm, the far-field test value is a test value of the distance sensor when the distance between the gray card and the distance sensor is 20 cm, and the near-field test value is larger than the far-field test value under normal conditions. The test value that this application detected and obtains represents the infrared light intensity of receipt, and its numerical value is big more, and the light intensity is stronger.
During detection, an initial near-field test value and a first far-field test value detected by the distance sensor are respectively obtained, and the difference value between the initial near-field test value and the first far-field test value is automatically calculated by the system and recorded as a first difference value. Because the distance between the near field and the far field of the gray card is a fixed value, the sensitivity of the distance detection sensor can be reflected by the detected first difference value, when the first difference value is greater than or equal to a first preset threshold value (such as 300), the sensitivity of the sensor meets the minimum requirement, and the set parameter value of the distance sensor can be adjusted to meet the factory standard. The calibration of the distance sensor is completed by comparing the difference value between the near-field test value and the far-field test value and adjusting the setting parameter value of the distance sensor according to the difference value, so that the accuracy of the wearing detection function of the TWS earphone in and out of the ear is improved.
In some embodiments, referring to fig. 2, if the first difference is greater than or equal to a first preset threshold, the step of adjusting the setting parameter value of the distance sensor includes:
s311, if the first difference is larger than or equal to a first preset threshold, the first difference is smaller than or equal to a second preset threshold;
the gain of the distance sensor is adjusted.
For example, the first preset threshold is 300, the second preset threshold is 500, and when the first difference is within the interval, the detection sensitivity can be improved by adjusting the gain of the distance sensor, so that the first preset threshold meets the factory standard.
In some embodiments, the step of adjusting the gain of the distance sensor specifically includes:
s312, within the preset times, adjusting the gain of the distance sensor according to the preset gain value;
s313, the adjusted first difference is redetected.
In an exemplary embodiment, the system is preset with 3 gain values, such as 2, 3, and 4, the first difference value is denoted as a, when a is equal to or greater than 300 and is equal to or less than 500, the system sets the gain of the distance sensor to 2, the first difference value theoretically increases to 2 times of the original value, at this time, the initial near-field test value and the first far-field test value are re-detected, the first difference value is calculated, and if a is equal to or greater than 300 and is equal to or less than 500, the gain of the distance sensor is changed to 3, and the above steps are repeated. The number of times of adjusting the gain of the distance sensor is at most 3, if A is more than or equal to 300 and less than or equal to 500 after the adjustment for 3 times, the calibration of the distance sensor is judged to be failed, and the calibration is finished; if A is more than 500 after 3 times of adjustment, the subsequent steps are carried out. In some other embodiments, the adjustment sequence and magnitude of the gain values may be set according to the characteristics of the distance sensor, and the first preset threshold and the second preset threshold may also be set as needed.
In some embodiments, if the first difference is greater than or equal to a first preset threshold, the step of adjusting the setting parameter value of the distance sensor further includes:
s321, if the first difference is greater than a second preset threshold;
the offset of the distance sensor is adjusted.
In a specific example, when the first difference is greater than the second preset threshold after the gain is adjusted, or is greater than the second preset threshold when the first difference is initially detected, the offset of the distance sensor is adjusted.
In some embodiments, the step of adjusting the offset of the distance sensor specifically includes:
and S322, setting the offset of the distance sensor as a second difference value of the first far-field test value and a preset reference.
For example, the initial near-field test value is denoted as a, the first far-field test value is denoted as B, and the second difference value is denoted as B, in one embodiment, a1 is 900, B1 is 300, the preset reference is 300, the first difference value a1 is 600, and the adjusted offset amount B1 is B1-300 is 0, that is, the offset amount is not adjusted. In another embodiment, a2 is 1000, B2 is 400, where the first difference a2 is 600, i.e., the sensitivities of the two distance sensors are the same, and the adjusted offset B2 is B2-300 is 100, i.e., the detected values of the distance sensors are all subtracted by 100, so that a2 detected again is 900, and B2 is 300. By the method, the test values of the different distance sensors under the far-field test condition are the same, and the sensitivity of the distance sensors can be conveniently detected according to the near-field test values in the subsequent steps.
In some embodiments, the TWS headset distance sensor calibration method further comprises: acquiring a second near-field test value; and if the second near field test value is larger than a third preset threshold value, setting an in-ear threshold value and an out-of-ear threshold value according to the second near field test value.
In an example, after the calibration of the distance sensor is completed, the near field test value is re-detected to obtain a second near field test value, the third preset threshold value is 800 in this embodiment, only when the re-detected second near field test value is greater than 800, the sensitivity of the distance sensor is in accordance with the standard, and at this time, the in-ear threshold value and the out-ear threshold value are set according to the second near field test value. If the in-ear threshold is the subtraction of 200 from the second near-field test value, and the out-of-ear threshold is the subtraction of 300 from the second near-field test value, the specific setting mode can be selected and set according to the detection result. If the second near field test value is less than or equal to 800, the second near field test value is unqualified, and the calibration process is ended.
In some embodiments, the step of calculating a first difference between the initial near-field test value and the first far-field test value further comprises: and if the first difference is smaller than the first preset threshold value, ending the process. And when the first difference is smaller than a first preset threshold, the sensitivity of the current distance sensor is very low, no calibration is necessary, and the whole detection process is ended.
Referring to fig. 4, the TWS headset distance sensor calibration method of the present application is described in detail below in one embodiment. The method comprises the steps of firstly obtaining an initial near field test value and a first far field test value detected by a distance sensor, calculating a first difference value of the initial near field test value and the first far field test value, then judging whether the first difference value is larger than or equal to a first preset threshold value, and if the first difference value is smaller than the first preset threshold value, ending the process; if the first difference is larger than or equal to a first preset threshold, judging whether the first difference is smaller than or equal to a second preset threshold; and if the first difference is smaller than or equal to a second preset threshold, adjusting the gain of the distance sensor, detecting again, and enabling the first difference to be larger than the second preset threshold in the specified times. And when the first difference value is larger than a second preset threshold value, adjusting the offset of the distance sensor, re-acquiring a second near field test value after adjustment, and judging whether the second near field test value is larger than a third preset threshold value. If the second near field test value is larger than a third preset threshold value, setting an in-ear threshold value and an out-of-ear threshold value according to the second near field test value, and if the second near field test value is smaller than or equal to the third preset threshold value, ending the process.
In some embodiments, the present application provides a TWS headset distance sensor calibration device, comprising: at least one processor, and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions that are executed by the at least one processor to cause the at least one processor to implement the TWS headset distance sensor calibration method in the above-described embodiments when executing the instructions.
In some embodiments, the present application also provides a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the TWS headset distance sensor calibration method in the above embodiments.
In the description of the present application, reference to the description of the terms "some embodiments," "illustrative embodiments," "examples," "specific examples," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
One of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present application. Furthermore, the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

Claims (9)

  1. A TWS headset distance sensor calibration method, comprising:
    acquiring an initial near-field test value and a first far-field test value detected by a distance sensor;
    calculating a first difference between the initial near-field test value and the first far-field test value;
    and if the first difference is larger than or equal to a first preset threshold value, adjusting a setting parameter value of the distance sensor.
  2. 2. The TWS headset distance sensor calibration method of claim 1, wherein the step of adjusting the set parameter value of the distance sensor if the first difference is greater than or equal to a first preset threshold value comprises:
    and if the first difference is larger than or equal to a first preset threshold value and the first difference is smaller than or equal to a second preset threshold value, adjusting the gain of the distance sensor.
  3. 3. A TWS headset distance sensor calibration method according to claim 2, characterized in that the step of adjusting the gain of the distance sensor, in particular:
    within the preset times, adjusting the gain of the distance sensor according to a preset gain value;
    and re-detecting the adjusted first difference value.
  4. 4. The TWS headset distance sensor calibration method of claim 2, wherein the step of adjusting the set parameter value of the distance sensor if the first difference is greater than or equal to a first preset threshold value further comprises:
    and if the first difference is larger than the second preset threshold, adjusting the offset of the distance sensor.
  5. 5. A TWS headset distance sensor calibration method according to claim 4, wherein the step of adjusting the offset of the distance sensor specifically is:
    and setting the offset of the distance sensor as a second difference value of the first far-field test value and a preset reference.
  6. 6. The TWS headset distance sensor calibration method of claim 5, further comprising:
    acquiring a second near-field test value;
    and if the second near field test value is larger than a third preset threshold value, setting an in-ear threshold value and an out-of-ear threshold value according to the second near field test value.
  7. 7. The TWS headset distance sensor calibration method of claim 1 wherein the step of calculating a first difference of the initial near-field test value and the first far-field test value further comprises:
    and if the first difference is smaller than a first preset threshold value, ending the operation.
  8. A TWS headset distance sensor calibration device, comprising:
    at least one processor, and,
    a memory communicatively coupled to the at least one processor; wherein,
    the memory stores instructions for execution by the at least one processor to cause the at least one processor, when executing the instructions, to implement a TWS headset distance sensor calibration method according to any of claims 1 to 7.
  9. 9. Computer readable storage medium, characterized in that it stores computer executable instructions for causing a computer to perform the TWS headset distance sensor calibration method according to any of claims 1 to 7.
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CN114189788A (en) * 2021-11-24 2022-03-15 深圳市豪恩声学股份有限公司 Tuning method, tuning device, electronic device, and storage medium
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