TW201832727A - Chewing side monitoring method, monitoring device and wearable device - Google Patents

Abstract

A chewing side monitoring method comprises the following steps of: step S10: collecting a left side of an acoustic signal and a right side of the acoustic signal by a bone conduction method; step S20: generating a left side power spectrum of the left acoustic signal and a right side power spectrum of the right acoustic signal during the monitoring period; step S30: integrating the left side power spectrum to obtain the left integration value, and the right side power spectrum to obtain the right integration value; and step S40: determining the actual chew side of the monitoring period based on the left integration value and the right integration value. The chewing side monitoring method of the present invention can monitor the actual chewing side used for a period of time to judge whether to chew unilaterally for reminding the user to chew with balance.

Description

   Chewing side monitoring method, monitoring device and wearable device   

The invention relates to the technical field of medical monitoring, in particular to a chewing side monitoring method, a monitoring device and a wearable device.

When eating food, the chewing muscles on the left and right sides should be chewed evenly, so that the gums on both sides can be evenly stimulated by the function, which is beneficial to the normal development of the teeth, jaws and corresponding muscles. If you chew unilaterally for a long time, you will develop muscles on one side and muscle atrophy on the other side.

In addition, the side that does not chew for a long time, due to the lack of functional stimulation, causes a large amount of food debris and tartar to be deposited around the teeth, causing changes in the periodontal support bones, and symptoms such as bleeding gums and bad breath.

In addition, long-term stress on one side causes an imbalance of left and right forces, and it is also easy to induce temporomandibular joint disease. The most common manifestations are popping sounds in the joints, joint pain, or restricted mouth opening. Therefore, those who have unilateral chewing habits should be corrected in time.

In view of the defects in the prior art, the purpose of the present invention is to provide a chewing side monitoring method, a monitoring device and a wearable device to monitor the actual chewing side used in a period of time, determine whether to chew unilaterally, and promptly issue a reminder to promote user equilibrium. chew.

According to an aspect of the present invention, a mastication side monitoring method is provided, including: step S10, acquiring a left acoustic wave signal and a right acoustic wave signal collected by bone conduction; step S20, generating a left power spectrum of the left acoustic wave signal during a monitoring period, And the right power spectrum of the right acoustic signal; step S30, integrating the left power spectrum to obtain a left integrated value, and integrating the right power spectrum to obtain a right integrated value; step S40, at least according to the left integrated value and the right integrated value, Determine the actual chewing side during this monitoring cycle.

Preferably, between step S30 and step S40, the method further includes: step S31, calculating a difference between the left integral value and the right integral value; step S32, presetting a first threshold value, and determining whether the absolute value of the difference is greater than If the first threshold value is yes, step S40 is performed, and if not, step S10 is returned.

Preferably, between step S30 and step S40, the method further includes: step S31, calculating a difference between the left integral value and the right integral value; step S32, presetting a first threshold value, and determining whether the absolute value of the difference is greater than If the first threshold value is yes, go to step S33, if not, go back to step S10; step S33, preset a second threshold value, and determine whether the absolute value of the value difference is greater than the second threshold value; if yes, perform step S40, if not Then, return to step S10.

Preferably, the method for monitoring the chewing side of the present invention further includes: step S50, counting the cumulative number of times that the actual chewing side is on the left side and the cumulative number of times that the actual chewing side is on the right side in a plurality of monitoring cycles; and step S60, presetting a third threshold value, Determine whether the absolute value of the difference between the cumulative number of times that the actual chewing side is on the left side and the cumulative number of times that the actual chewing side is on the right side is greater than the third threshold. Chew the side.

Preferably, the chewing side monitoring method of the present invention further comprises: Step S80, determining whether the actual chewing side and the recommended chewing side match in the current monitoring cycle; if yes, return to step S10; if not, execute step S90; step S90, output The first prompt message.

Preferably, the chewing side monitoring method of the present invention further comprises: Step S100, preset a designated chewing side, and determine whether the actual chewing side in the current monitoring period matches the designated chewing side. If yes, return to step S10, and if not, execute Step S110; Step S110, output a second prompt message.

According to another aspect of the present invention, a chewing-side monitoring device is provided, including: a first bone conduction module for collecting left-side acoustic signals; a second bone conduction module for collecting right-side acoustic signals; and an analysis module Group, connected to the first bone conduction module and the second bone conduction module, for generating a left power spectrum of the left acoustic signal during a monitoring period, integrating the left power spectrum to obtain a left integrated value, and generating the monitoring During the period, the right power spectrum of the right sound wave signal is integrated with the right power spectrum to obtain the right integration value; a judgment module is connected to the analysis module, and the judgment module is based on at least the left integration value and the right integration value, Determine the actual chewing side during this monitoring cycle.

Preferably, the chewing-side monitoring device of the present invention further comprises: a conduction module pre-stored with a first threshold value, connected between the analysis module and the judgment module, and the conduction module calculates the left integral value and the right The value difference of the integrated value is turned on when the absolute value of the value difference is greater than the first threshold.

Preferably, a second threshold is pre-stored in the judgment module, and the judgment module judges the actual chewing side based on at least the absolute value of the difference between the left integral value and the right integral value and the second threshold.

Preferably, the mastication side monitoring device of the present invention further includes: a statistical module pre-stored with a third threshold value, which is connected to the judgment module, and the statistical module counts the cumulative number of times the actual chewing side is the left side in multiple monitoring cycles And the cumulative number of times that the actual chewing side is the right side during the multiple monitoring periods; an output module connected to the statistics module, the output module is the cumulative number of times when the actual chewing side is the left side and the actual chewing side is the right side When the absolute value of the difference between the accumulated times is greater than the third threshold, the recommended chewing side is output.

Preferably, the chewing side monitoring device of the present invention further comprises: a prompting module connected to the output module and the judging module, and the prompting module judges whether the actual chewing side in the current monitoring period matches the recommended chewing side. , The first prompt message is output when they do not match.

Preferably, a designated chewing side is also pre-stored in the prompting module, and the prompting module judges whether the actual chewing side and the designated chewing side match in the current monitoring period, and outputs a second prompt message when they do not match.

According to another aspect of the present invention, there is provided a wearable device including the chewing side monitoring device described above.

In view of this, the chewing side monitoring method, monitoring device and wearable device of the present invention can monitor the actual chewing side used over a period of time, determine whether to chew unilaterally, and promptly issue a reminder to prompt the user to chew evenly.

10‧‧‧The first bone conduction module

20‧‧‧Second Bone Conduction Module

30‧‧‧analysis module

40‧‧‧Judgment Module

50‧‧‧ Continuity Module

60‧‧‧Statistics Module

70‧‧‧output module

80‧‧‧ Prompt Module

100‧‧‧ monitoring device

110‧‧‧Processing components

120‧‧‧Storage

130‧‧‧ Battery pack

140‧‧‧Multimedia component

150‧‧‧Audio components

160‧‧‧Input / output interface

170‧‧‧Sensor components

180‧‧‧Communication component

200‧‧‧ Bone Conduction Headphones

201‧‧‧ Bone Conduction Sensor

1100‧‧‧ processor

A‧‧‧left power spectrum curve

B‧‧‧ Right power spectrum curve

N‧‧‧Sonic collection points

S10‧‧‧step

S20‧‧‧step

S30‧‧‧step

S31‧‧‧step

S32‧‧‧step

S33‧‧‧step

S40‧‧‧step

S50‧‧‧step

S60‧‧‧step

S70‧‧‧step

S80‧‧‧step

S90‧‧‧step

S100‧‧‧step

S110‧‧‧step

FIG. 1 is a schematic flowchart of a chewing side monitoring method according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of a position of a sound wave collection point in the embodiment shown in FIG. 1.

FIG. 3a is a graph of a left power spectrum and a right power spectrum in a chewing state in the embodiment shown in FIG. 1. FIG.

FIG. 3b is a graph of a left power spectrum and a right power spectrum in another chewing state in the embodiment shown in FIG. 1. FIG.

FIG. 4 is a schematic flowchart of a monitoring method according to another embodiment of the present invention.

FIG. 5 is a schematic flowchart of a monitoring method according to another embodiment of the present invention.

FIG. 6 is a schematic flowchart of a monitoring method according to another embodiment of the present invention.

FIG. 7 is a schematic flowchart of a monitoring method according to another embodiment of the present invention.

FIG. 8 is a schematic diagram of a connection structure of a chewing-side monitoring device according to an embodiment of the present invention.

FIG. 9 is a schematic diagram of a connection structure of a monitoring device according to another embodiment of the present invention.

FIG. 10 is a schematic diagram of a connection structure of a monitoring device according to another embodiment of the present invention.

FIG. 11 is a schematic diagram of using a wearable device according to an embodiment of the present invention.

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete, and the concept of the example embodiments will be fully conveyed to Those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and their repeated description will be omitted.

The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of the present invention. However, those skilled in the art should realize that the technical solution of the present invention can also be practiced without one or more of the specific details, or by using other methods, components, materials, and the like. In some cases, well-known structures, materials, or operations have not been shown or described in detail to avoid obscuring the invention.

The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but not intended to limit the protection scope of the present invention.

Those skilled in the art can understand that the terms "first" and "second" in the present invention are only used to distinguish different parameters, modules or devices, etc., and they do not represent any specific technical meaning, nor do they mean Necessary logical order.

FIG. 1 is a schematic flowchart of a chewing side monitoring method according to an embodiment of the present invention, including the following steps: S10: Acquire a left acoustic wave signal and a right acoustic wave signal collected by a bone conduction method. As an optional implementation, for example, a bone conduction sensor is used to collect on both sides of the user's head. The bone conduction sensor may be provided on a wearable device, such as a bone conduction headset, smart glasses, or a smart hat. When the user wears the wearable After the device, a bone conduction sensor located on the left side of the user's head collects the left acoustic signal, and a bone conduction sensor located on the right side of the user's head collects the right acoustic signal. The frequency when the bone conduction sensor collects sound waves can be freely set by the user, for example, it can be set to 1s / times, that is, once every second, or 2s / times, that is, once every two seconds, and so on.

Figure 2 is a schematic diagram of a sound wave collection point. As shown in Figure 2, when a bone conduction sensor is used for sound wave collection, the specific collection locations are located on the cheek area on both sides of the user's head, such as near the ears or temple area, as shown in Figure 2. The acoustic wave acquisition point N shown is an optional acquisition position.

In step S20, the left power spectrum of the left sound wave signal and the right power spectrum of the right sound wave signal are generated during the monitoring period. The duration of the monitoring period can be freely set by the user, for example, 30 seconds, 1 minute, or longer. Taking the monitoring period as 1 minute as an example, that is, in each step of S10, the left and right acoustic signals are collected in step S10, and step S20 calculates and generates the left power spectrum of the left acoustic signal and the 1 Right power spectrum of the right acoustic signal collected in minutes.

Step S30: Integrate the left power spectrum to obtain the left integrated value, and integrate the right power spectrum to obtain the right integrated value. Fig. 3a is a graph of the left power spectrum and right power spectrum in a chewing state, and Fig. 3b is a graph of left power spectrum and right power spectrum in another chewing state, where the left power spectrum curve is labeled as A line and the right power spectrum The curve is marked as the B line. As shown in FIG. 3a, the abscissa is the frequency unit kHz, and the ordinate is the power unit dB. The left integral value obtained by integrating the left power spectrum is the area between the left power spectrum curve and the coordinate axis. In the chewing state of the user, when using the left chewing within a monitoring period, the integrated value of the left power spectrum is greater than the integrated value of the right power spectrum. As shown in Figure 3b, the abscissa is the frequency unit kHz, and the ordinate is the power unit dB. The right integration value obtained by integrating the right power spectrum is the area between the right power spectrum curve and the coordinate axis. When shown in Figure 3b In the chewing state of the user, when using the right chewing within a monitoring period, the integrated value of the right power spectrum is greater than the integrated value of the left power spectrum.

In step S40, the actual chewing side in the monitoring period is determined based on at least the left integral value and the right integral value. It can be known from FIG. 3a and FIG. 3b that when there is unilateral chewing in a monitoring period, there is a difference between the integral value of the left power spectrum and the integral value of the right power spectrum. According to the magnitude of the left integral value and the right integral value, , It can be judged that the side with the larger integral value is the actual chewing side used in a monitoring cycle.

This embodiment can monitor the actual chewing side used by the user in a monitoring period, and then determine whether to chew unilaterally.

FIG. 4 is a schematic flowchart of a monitoring method according to another embodiment of the present invention. As shown in FIG. 4, the monitoring method of this embodiment between step S30 and step S40 further includes: step S31, calculating a left integral value and a right integral value In step S32, a first threshold value is preset, and it is determined whether the absolute value of the value difference is greater than the first threshold value. If so, step S40 is performed, and if not, return to step S10.

Since the monitoring method of the present invention aims to monitor whether the user is chewing on one side when chewing, the actual chewing side used in the monitoring period is only required to be judged if the user is identified as being in the chewing state. This embodiment identifies whether the user is in a chewing state according to the magnitude relationship between the absolute value difference between the left and right integration values and the first threshold. When the absolute value of the difference reaches a predetermined level, that is, greater than the first threshold (the first (A threshold can be reasonably set according to the actual situation), when the collected left sound wave signal and the right sound wave signal are considered to have a large difference (for example, the left sound wave signal is significantly stronger than the right sound wave signal), it is identified as being in a chewing state; and when monitoring During the period, the left integral value and the right integral value are relatively close, that is, when the absolute value of the value difference is not greater than a preset first threshold, it is considered that the intensity of the collected left acoustic signal and the right acoustic signal are close, indicating that the user may be in a speaking state and cause The sonic signal, or the sonic signals approached by simultaneous chewing on both sides, does not require further monitoring in this case, so step S40 is not performed, and instead returns to step S10 for the next monitoring cycle.

In addition to the above-mentioned way of automatically identifying the chewing state, manual control can also be performed. The user enters the chewing start instruction at the beginning of chewing, and enters the chewing end instruction at the end of chewing. That is, the user is identified as being in a chewing state, and steps S10 to S40 are executed to determine the actual chewing side used by the user in the monitoring period (ie, the time period between the chewing start instruction and the chewing end instruction).

Alternatively, several chewing periods can be set in advance as the monitoring period, for example, three chewing periods such as breakfast period 7: 00-8: 00, lunch period 12: 00-13: 00, and dinner period 18: 00-19: 00 are set as During the monitoring period, the user is automatically identified as being in a chewing state during these three chewing periods, and steps S10-S40 are automatically performed to determine the actual chewing side.

In this embodiment, the actual chewing side used in the monitoring period can be determined only when the user is identified as being in the chewing state, thereby saving resources and monitoring power consumption.

FIG. 5 is a schematic flowchart of a monitoring method according to another embodiment of the present invention. As shown in FIG. 5, the monitoring method of this embodiment between step S30 and step S40 further includes: step S31, calculating a left integral value and a right integral value In step S32, a first threshold value is preset to determine whether the absolute value of the value difference is greater than the first threshold value. If so, step S33 is performed, and if not, return to step S10; in step S33, a second threshold value is preset and judged. Whether the absolute value of the value difference is greater than the second threshold, if yes, execute step S40; if no, return to step S10.

Compared with the embodiment shown in FIG. 4, step S33 is added in this embodiment, that is, when the embodiment shown in FIG. 4 is determined to be in a chewing state, it is further determined whether to chew unilaterally. When chewing on both sides, it is normal for the left and right points to have a slight difference. When judging the actual chewing side, if there is a slight difference between the left and right points (for example, the left point) If the value is slightly larger than the integral value on the right side, it is judged that the actual chewing side is the left side), which may cause some errors. Therefore, this embodiment determines the user by calculating the difference between the left integral value and the right integral value, and when the absolute value of the value difference is greater than a preset second threshold value (the second threshold value can also be reasonably set according to the actual situation), the user is determined There is a case of unilateral chewing, and then the actual chewing side used in this monitoring period is the side with the larger integral value; if the absolute value of the difference between the left integral value and the right integral value is not greater than the second threshold , It indicates that the actual chewing side used in this monitoring cycle is bilateral.

Taking the monitoring period of 1 minute as an example, if the left integral value is greater than the right integral value during the 1 minute period, and the difference between the left integral value and the right integral value is significant and greater than the second threshold value, it indicates that the user is Within 1 minute, it is preferred to use the left chewing side for chewing. At this time, it can be judged that the actual chewing side in the current 1 minute is the left side; similarly, if the calculation shows that the right point value is greater than the left point value and the right point is within 1 minute. The value difference between the value and the left integral value is very significant, and is greater than the second threshold value, which indicates that the user is biased to use the right chewing side for chewing within this minute, and at this time, it can be judged that the actual chewing side in the current 1 minute is the right side ; If the calculated difference between the left and right points in the current 1 minute is not greater than the second threshold, it means that the user has used the left chewing and the right chewing for approximately the same time in the current 1 minute. The chewing side used within this 1 minute was bilateral.

In this embodiment, according to the relationship between the value difference between the left and right integral values and the second threshold, it is determined whether the chewing side of the monitoring cycle is left or right or both sides, so as to accurately determine whether the chewing is unilateral.

FIG. 6 is a schematic flowchart of a monitoring method according to another embodiment of the present invention. It should be noted that the embodiment shown in FIG. 6 can be developed based on the embodiment shown in FIG. 1 or based on the implementation shown in FIG. 4 or FIG. 5. The examples are developed, and the embodiments can be combined with each other to form modified examples that satisfy different monitoring cycles and different monitoring states. FIG. 6 is to avoid repetitive explanation, and the embodiment shown in FIG. 1 is directly referred to, which should not be regarded as a limitation to the present invention.

As shown in FIG. 6, the monitoring method in this embodiment further includes: Step S50, counting the cumulative number of times that the actual chewing side is on the left side and the cumulative number of times that the actual chewing side is on the right side in a plurality of monitoring cycles; step S60, presetting a third Threshold to determine whether the absolute value of the difference between the cumulative number of times that the actual chewing side is on the left side and the cumulative number of times that the actual chewing side is on the right side is greater than the third threshold; if yes, go to step S70; if not, go back to step S10; side.

Among them, the multiple monitoring periods in step S50 can be regarded as one monitoring period, and the monitoring period can be freely set by the user, for example, setting the monitoring period to one hour or one day or one week; or the monitoring period can also be limited by the start instruction and the end instruction. . During the entire monitoring period, the user may use left chewing in several monitoring periods, and use right chewing in other monitoring periods. By counting the monitoring period using left chewing and the monitoring period using right chewing in one monitoring period The number of times is significant, and the number of times is significant, that is, the third threshold is exceeded, in order to accurately determine that the user has long been inclined to use one side for chewing during the monitoring period.

Specifically, for example, the monitoring period is set to 1 minute, the monitoring period is 1 day, and the third threshold is 30. Statistics found that in the monitoring period of 1 day, the user used the left chewing for 10 minutes, that is, the number of monitoring cycles that the actual chewing side was left was 10, and the right chewing was 80 minutes. That is, it is judged that the number of monitoring cycles that the actual chewing side is the right side is 80, so the difference between the number of monitoring cycles that are biased to use the left side and the right side within one day is 70, which is greater than the third threshold of 30. It is determined that the user has unilateral chewing, so that a recommended chewing side is output, and the recommended chewing side is the side on which the user has used a smaller number of monitoring cycles during the day, that is, the left side. Similarly, when statistics show that the side with a smaller number of monitoring cycles accumulated for 1 day is the right side, the right chewing side is output as the recommended chewing side; if the chewing side is determined to be the left side monitoring within 1 day of the monitoring period When the difference between the number of cycles and the number of monitoring cycles determined to be the right is not greater than the third threshold, it indicates that the difference between the length of time when the user chewed on the left side and the time on the right side was not large, and it can be considered that the user was using double Chew sideways, no recommendation reminders required.

Further, the method of outputting the recommended chewing side may be voice, for example, outputting a voice prompt of "Please chew on the left side". This voice can be transmitted to the user through the bone conduction sensor. The bone conduction sensor converts the voice into mechanical vibration with different frequencies. Human skulls, bone labyrinths, inner ear lymph fluid, spiral organs, auditory nerves, and auditory centers transmit speech. This conduction method can ensure that users hear clear speech in a noisy environment, and it will not spread in the air and affect others. . Alternatively, the chewing side may also be recommended through vibration output. For example, when the recommended chewing side is the left side, three vibrations at the left chewing muscle of the user may indicate that the user is prompted to perform left chewing. Of course, it can also be reminded in other reasonable ways, such as sending the recommended chewing side to the display of the mobile terminal, and the user can know the recommended chewing side after seeing the reminder on the display.

Further, as a preferred implementation, the monitoring method of this embodiment further includes: Step S80, determining whether the actual chewing side and the recommended chewing side match in the current monitoring cycle. If yes, return to step S10, and if not, execute step S90. Step S90: Output a first prompt message. After the recommended chewing side is output in step S60, step S70 continues to monitor in real time whether the user uses the recommended chewing side for chewing. For example, after outputting the left side as the recommended chewing side in step S60, step S70 continues monitoring to determine the chewing used in the current monitoring cycle. Whether the side is the recommended left side. If it is the left side, it indicates that the user has corrected unilateral chewing. This monitoring is over. You can return to step S10 for monitoring in the next monitoring cycle. If it is not the left side, it indicates that the user is not using the recommended chewing side. When chewing, step S90 is executed to output a first prompt message to prompt the user to use the recommended chewing side for chewing. The first prompt message can also be output through voice, vibration, or other reasonable methods.

This embodiment is used to output recommendation information in time when it is counted that the user has chewed on one side for a long period of time during a longer monitoring period, reminding the user to chew on the other side, and to monitor whether the user uses the recommended chewing side in real time This encourages users to chew in balance.

FIG. 7 is a schematic flowchart of a monitoring method according to another embodiment of the present invention. It should also be noted that FIG. 7 is a direct reference to the embodiment shown in FIG. 1 to avoid repetitive description, which should not be regarded as a limitation on the present invention.

As shown in FIG. 7, the monitoring method in this embodiment further includes a step S100, presetting a designated chewing side, and judging whether the actual chewing side and the designated chewing side match in the current monitoring cycle. If yes, return to step S10, if not, Perform step S110; step S110, output a second prompt message.

Step S100 in this embodiment is used when the user has learned that there is a unilateral chewing situation, so a designated chewing side can be manually entered, and then the actual chewing side in the current monitoring period is monitored to determine whether the actual chewing side matches the input. A second prompt message is output when they match. The second prompt message may be a voice message, such as "Please use the designated left side for chewing", or a vibration message, such as vibrating the left side of the user's face to prompt the user to use the left side for chewing.

Of course, this embodiment may be combined with other embodiments, for example, in combination with the embodiment shown in FIG. 6, after obtaining the recommended chewing side, it is determined whether the recommended chewing side and the designated chewing side are consistent, and a corresponding prompt is given when they do not match.

In this embodiment, the user may set a designated chewing side according to his or her own situation to supervise and prompt himself to use the designated chewing side for chewing.

The present invention also provides a chewing-side monitoring device. FIG. 8 is a schematic diagram of a connection structure of the chewing-side monitoring device according to an embodiment of the present invention. As shown in FIG. 8, the monitoring device of this embodiment includes a first bone conduction module 10 for Acquire the left acoustic signal; the second bone conduction module 20 is used to acquire the right acoustic signal; the analysis module 30 is connected to the first bone conduction module 10 and the second bone conduction module 20 to generate the left side during the monitoring period The left power spectrum of the sound wave signal is integrated with the left power spectrum to obtain the left integrated value, and the right power spectrum of the right sound wave signal during the monitoring period is generated, and the right power spectrum is integrated to obtain the right integrated value; the judgment module 40 and the analysis module 30 In connection, the determination module 40 determines at least the actual chewing side in the monitoring period based on at least the left integral value and the right integral value.

Wherein, the first bone conduction module 10 and the second bone conduction module 20 can both be bone conduction sensors, such as bone conduction microphones, and use the slight vibration of the head and neck bones caused by the user's chewing or speech to collect the user's chewing sound waves. Or speech sound waves. The first bone conduction module 10 and the second bone conduction module 20 are disposed on both sides of the user's head, for example, respectively at positions N of the acoustic wave collection point shown in FIG. 2. Alternatively, the first bone conduction module 10 and the second bone conduction module 20 may only be used to receive acoustic signals, and the collection operation is performed by a bone conduction sensor independent of the monitoring device. That is, a bone conduction sensor for acquiring acoustic signals can be provided in the monitoring device of the present invention, that is, the first bone conduction module 10 and the second bone conduction module 20 are directly set as bone conduction sensors. The monitoring device collects acoustic signals directly through the first bone conduction module 10 and the second bone conduction module 20; or, the bone conduction sensor is independent of the monitoring device of the present invention, and at this time, the first bone conduction module 10 and the second bone The conduction module 20 receives an acoustic wave signal transmitted by a bone conduction sensor. The frequency when the bone conduction sensor collects sound waves can be freely set by the user, or it can be the factory default, which is not limited in the present invention.

The working modes of the analysis module 30 and the determination module 40 have been described in the method embodiments above, so they are not described again.

In a preferred embodiment, when it is detected that the actual chewing side is the left side or the right side, that is, there is unilateral chewing, the monitoring device of this embodiment may also output the unilateral chewing detection result in real time. For example, the judging module 40 determines that the actual chewing side is the left side, and can output the unilateral chewing detection result of "actual chewing side is the left side", for example, to a mobile terminal, so that the user knows his own chewing status in real time; further Yes, the unilateral chewing test result can also be used as an instruction to control the opening or closing of certain programs through the application of the mobile terminal, for example, to control the closing of the game program, thereby expanding the use range of the unilateral chewing test result.

The monitoring device of this embodiment can monitor the actual chewing side used by the user in a monitoring period, and then determine whether there is unilateral chewing.

FIG. 9 is a schematic diagram of a connection structure of a monitoring device according to another embodiment of the present invention. As shown in FIG. 9, the monitoring device of this embodiment includes a first bone conduction module 10, a second bone conduction module 20, and an analysis module 30. In addition to the judgment module 40, it also includes a conduction module 50, which has a first threshold value pre-stored, and is connected between the analysis module 30 and the judgment module 40. The conduction module 50 is used to calculate the left and right integration values. The value difference is turned on when the absolute value of the value difference is greater than the first threshold. In other words, the conduction module 50 is mainly used to identify whether the user is in a chewing state. When it is recognized that the user is in a chewing state, the left integral value and the right integral value are transmitted to the analysis module 30 determination module 40, that is, the conduction analysis module. The group 30 judges the module 40, thereby saving terminal resources and avoiding unnecessary chewing monitoring caused by actions such as speech. Of course, monitoring can also be performed by manually turning on and off the conduction module 50 for a period of time, and this period of time is used as the monitoring period. The duration of the monitoring period can be freely set by the user, or it can be the default of the monitoring device when it leaves the factory, which is not limited in the present invention.

Further, a second threshold is pre-stored in the judgment module 40. When the conduction module 50 is turned on (that is, the user is chewing), the judgment module 40 is based on the absolute value of the difference between the left integral value and the right integral value. With this second threshold, the actual chewing side is determined. Specifically, the judgment module 40 calculates the difference between the left integral value and the right integral value. When the absolute value of the difference is greater than or equal to the second threshold, it is judged that there is unilateral chewing, and then the left integral value and the right integral value are determined The larger side is the actual chewing side; if the absolute value of the difference between the left integral value and the right integral value is less than the second threshold value, it indicates that there is only a slight difference between the left and right integral values, which can be determined as Not one-sided or two-sided.

The statistics module 60 has a third threshold value pre-stored and is connected to the judgment module 40. The statistics module 60 counts the cumulative number of times that the actual chewing side is the left side in multiple monitoring cycles, and the cumulative number of times that the actual chewing side is the right side in multiple monitoring cycles. The output module 70 is connected to the statistics module 60. When the absolute value of the difference between the cumulative number of times that the actual chewing side is on the left side and the cumulative number of times that the actual chewing side is on the right side is greater than the third threshold, it outputs a recommended chewing side.

Among them, multiple monitoring cycles as a monitoring period can be freely set by the user, for example, set to 1 day; or start statistics by pressing the start button on the monitoring device, and press the end button on the monitoring device to end after multiple monitoring cycles Statistics, the period from the start of statistics to the end of statistics is the monitoring period; or, the monitoring period may also be defaulted when the device is shipped from the factory, which is not limited in the present invention. The device including the statistics module 60 and the output module 70 may include the conduction module 50 at the same time, or only include the first bone conduction module 10, the second bone conduction module 20, the analysis module 30, and the judgment module 40. The different combinations form monitoring devices that can monitor different chewing states, and correspond to different monitoring methods, all of which have been described in the above method embodiments.

The prompting module 80 is connected to the output module 70 and the judging module 40. The prompting module 80 judges whether the actual chewing side and the recommended chewing side match in the current monitoring period, and outputs a first reminder message when they do not match.

Further, a designated chewing side may be pre-stored in the prompting module 80, and the prompting module 80 judges whether the actual chewing side and the designated chewing side are consistent in the current monitoring period, and outputs a second prompt message when they do not match.

It should be noted that the functional modules added in the embodiment shown in FIG. 9 compared with the embodiment shown in FIG. 8 can be formed in different combinations in different combinations, and the working modes of each functional module have been implemented in the method described above. Explained in the example, will not repeat them here.

In summary, the chewing side monitoring device of this embodiment can monitor the actual chewing side used by a user for a period of time, promptly issue a corresponding reminder, and perform real-time supervision, thereby prompting the user to perform balanced chewing.

FIG. 10 is a schematic diagram of a connection structure of another monitoring device 100 according to an embodiment of the present invention. The device 100 is suitable for a terminal device. This embodiment does not limit the specific implementation thereof. As shown in FIG. 10, the monitoring device 100 may include : Processing module 110, storage 120, power module 130, multimedia module 140, audio module 150, input / output interface 160, sensor module 170, and communication module 180.

The processing component 110 is configured to control the overall operation of the device 100. The processing component 110 may include one or more processors 1100 to execute instructions to complete all or part of the steps in the foregoing method embodiments. In addition, the processing component 110 may include one or more modules (not shown in the figure) to facilitate the interaction between the processing component 110 and other components. For example, the processing component 110 may include a multimedia module to facilitate interaction with the multimedia component 140.

The storage 120 is configured to store various types of data to support operation at the device 100. These data include instructions for any application or method operating on the device 100, contact data, and the like. The memory 120 may be implemented by any type of volatile or non-volatile storage medium or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), Erase Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Disk or Optical Disk.

The power supply assembly 130 provides power to various components of the device 100. The power component 130 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 100.

The multimedia component 140 provides a screen of an output interface between the device 100 and a user, which may include a liquid crystal display and a touch panel. If the screen is a touch panel, one or more touch sensors can be included to sense touch, slide, and gestures on the touch panel. The touch sensor can not only sense the boundaries of touch or slide actions, but also detect the touch or slide operations Duration and stress. In some embodiments, the multimedia component 140 further includes a front camera and / or a rear camera. When the device 100 is in an operation mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external For multimedia data, each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 150 is configured to output and / or input audio signals. For example, the audio component 150 includes a microphone for receiving audio signals, and the received audio signals may be further stored in the storage 120 and executed via the processing component 110. In some embodiments, the audio component 150 further includes a speaker for outputting audio signals.

The input / output interface 160 provides an interface between the processing component 110 and a peripheral interface module. The peripheral interface module may be a keyboard, a click wheel, a button, etc. These buttons may include, but are not limited to, a lock button, a volume button, and a start button. And close button.

The sensor assembly 170 includes one or more sensors for providing status assessment of various aspects of the device 100. For example, the sensor component 170 may detect the opening / closing state of the device 100; the sensor component 170 may also detect a change in the position of the device 100 or a component of the device 100, whether a contact between the user and the device 100 exists, the position or acceleration of the device 100 / Deceleration and temperature change of the device 100, etc. The sensor component 170 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 170 may further include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 180 is configured to facilitate wired or wireless communication between the device 100 and other devices. The device 100 can access a wireless network based on a communication standard, such as WiFi, 2G, 3G, or 4G, or a combination thereof. In one embodiment, the communication section 180 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In another embodiment, the communication component 180 further includes a near field communication module to facilitate short-range communication. The near field communication module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

In some embodiments, the device 100 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gates An array (FPGA), controller, microcontroller, microprocessor or other electronic component is used to perform the above method.

The present invention also provides a wearable device. Each of the above-mentioned functional modules and electronic components can be disposed on a wearable bone conduction headset, smart glasses or smart hat, thereby forming the wearable device of the present invention.

FIG. 11 is a schematic diagram of the use of the wearable device of the present invention. As shown in FIG. 11, the wearable device is specifically a bone conduction earphone 200. The bone conduction earphone 200 is provided with a bone conduction sensor 201. Bone conduction headset 200, bone conduction sensor 201 is located at the user's masticatory muscle position (the user's left face is shown in the figure, the bone conduction sensor 201 is located at the user's left masticatory muscle position), and the bone conduction sensor 201 is used to collect the left acoustic wave signal. Among them, a processor including a functional module such as an analysis module, a judgment module, and a statistics module, and a memory for storing instructions are disposed inside the bone conduction headset 200, and thus are not shown in detail in the figure. The processor controls the bone conduction sensor 201 to collect left and right chewing side acoustic wave signals in a bone conduction manner on both sides of the user's head and send them to the processor, and then the processor obtains the left power spectrum and right power spectrum in the monitoring period. ; Judge the actual chewing side used in the monitoring period based on the left power spectrum and right power spectrum during the monitoring period. The storage is used to store various operation instructions to be executed by the processor, or various operation data input by the user.

It can be seen that, by setting each functional module in the chewing-side monitoring device to a bone conduction headset in this embodiment, the user can conveniently monitor the chewing side through the bone conduction headset.

Based on the above description, the chewing side monitoring method, monitoring device and wearable device of the present invention can monitor the user's chewing state in real time, determine whether to chew unilaterally, and issue corresponding prompts, thereby prompting the user to perform balanced chewing.

The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of applying for a patent, which does not affect the essence of the present invention.

Claims (13)

    A mastication side monitoring method includes: Step S10, acquiring a left acoustic wave signal and a right acoustic wave signal collected by a bone conduction method; and step S20, generating a left power spectrum of the left acoustic wave signal and a right power of the right acoustic wave signal during a monitoring period. Step S30, integrating the left power spectrum to obtain the left integrated value, and integrating the right power spectrum to obtain the right integrated value; and step S40, at least based on the left integrated value and the right integrated value, to determine the actual value in the monitoring period Chew the side.         The chewing side monitoring method as described in the patent application scope 1, wherein between step S30 and step S40 further includes: step S31, calculating a difference between the left integral value and the right integral value; and step S32, presetting a first A threshold value to determine whether the absolute value of the value difference is greater than the first threshold value. If yes, step S40 is performed, and if no, return to step S10.         The chewing side monitoring method as described in the patent application scope 1, wherein between step S30 and step S40 further includes: step S31, calculating a difference between the left integral value and the right integral value; step S32, presetting a first Threshold, determine whether the absolute value of the value difference is greater than the first threshold value, if yes, execute step S33, if not, return to step S10; and step S33, preset a second threshold value, determine whether the absolute value of the value difference is greater than the The second threshold value, if yes, execute step S40; if no, return to step S10.         The method for monitoring the chewing side as described in the patent application scope 1, 2 or 3, further comprising: step S50, counting the cumulative number of times that the actual chewing side is on the left side and the cumulative number of times that the actual chewing side is on the right side in multiple monitoring cycles; step S60 Preset a third threshold to determine whether the absolute value of the difference between the cumulative number of times that the actual chewing side is on the left side and the cumulative number of times that the actual chewing side is on the right side is greater than the third threshold. If yes, go to step S70, and if not, return Step S10; and step S70, the recommended chewing side is output.         The method for monitoring the chewing side as described in the scope of application patent 4, further comprising: Step S80, determining whether the actual chewing side in the current monitoring period is consistent with the recommended chewing side. If yes, go back to step S10, and if not, go to step S90; And step S90, a first prompt message is output.         The method for monitoring the chewing side as described in the scope of patent application 1, 2 or 3, further comprising: Step S100, preset a designated chewing side, and determine whether the actual chewing side in the current monitoring cycle matches the designated chewing side. If so, Return to step S10, if not, execute step S110; and step S110, output a second prompt message.         A chewing-side monitoring device includes: a first bone conduction module for collecting a left acoustic signal; a second bone conduction module for collecting a right acoustic signal; an analysis module and the first bone conduction module The group is connected to the second bone conduction module, and is used to generate the left power spectrum of the left acoustic signal during the monitoring period, integrate the left power spectrum to obtain the left integral value, and generate the right power of the right acoustic signal during the monitoring period. Spectrum, integrating the right power spectrum to obtain the right integral value; and a judgment module connected to the analysis module, the judgment module judges the actual chewing during the monitoring period based on at least the left integral value and the right integral value. side.         The chewing side monitoring device as described in the scope of application patent 7, further comprising: a conduction module pre-stored with a first threshold value, connected between the analysis module and the judgment module, and the conduction module calculates the left integral The difference between the value and the right integral value. When the absolute value of the value difference is greater than the first threshold, the judgment module is turned on.         As described in the patent application scope 7, the chewing side monitoring device, wherein a second threshold is pre-stored in the judgment module, and the judgment module is based on at least the absolute value of the difference between the left integral value and the right integral value and the first Two thresholds to determine the actual chewing side.         The chewing-side monitoring device as described in the scope of patent application 7, 8, or 9, further includes: a statistical module, which has a third threshold pre-stored, and is connected to the judgment module. The statistical module counts the actual number of monitoring cycles. The chewing side is the cumulative number of times on the left side, and the actual chewing side is the cumulative number of times on the right side during the multiple monitoring periods; and an output module is connected to the statistics module. When the actual chewing side is the left side cumulative When the absolute value of the difference between the number of times and the cumulative number of times that the actual chewing side is on the right side is greater than the third threshold, a recommended chewing side is output.         The chewing side monitoring device according to the patent application scope 10, further comprising: a reminder module connected to the output module and the judgment module. The reminder module judges the actual chewing side and the recommendation in the current monitoring cycle. Whether the chewing sides match, and output a first prompt message when they do not match.         For example, the chewing side monitoring device described in the patent application range 11, wherein the reminder module has a specified chewing side pre-stored, and the reminder module judges whether the actual chewing side in the current monitoring period matches the designated chewing side. Output a second prompt message.         A wearable device includes the chewing-side monitoring device described in the patent application scope 7, 8 or 9.