CN106020564B - PPG information detecting method and equipment - Google Patents
PPG information detecting method and equipment Download PDFInfo
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- CN106020564B CN106020564B CN201510110316.0A CN201510110316A CN106020564B CN 106020564 B CN106020564 B CN 106020564B CN 201510110316 A CN201510110316 A CN 201510110316A CN 106020564 B CN106020564 B CN 106020564B
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Abstract
This application provides a kind of PPG information detecting method and equipment, are related to field of electronic device.The described method includes: at least location contacts one in response to user's body show screen, determine that a target area, the target area include that a transmission subregion and one receive subregion on the display screen；It controls the transmission subregion and sends one first optical signal；It controls the reception subregion and receives one second optical signal of first optical signal after reflection or transmission；The PPG information of the user is determined according to second optical signal.Based on the method and equipment, the detection position of user's body can be placed on any position of the display screen by user, the method and equipment adaptively can set detection zone for the corresponding target area, to improve detection flexibility and detection efficiency.
Description
Technical field
This application involves field of electronic device more particularly to a kind of PPG information detecting method and equipment.
Background technique
The electronic equipment of concern with the development and people of to(for) health, present electronic equipment integrate some strong mostly
Health monitoring modular.For example, some smart phones and wearable device are all integrated with PPG detection module at present, used for detecting
The PPG information at family.
Fig. 1 illustrates a kind of PPG detection method, and principle is the light that issues of illumination region after finger tip reflects, by by
Detect intensity of reflected light in light portion.Since blood can have absorption to light, the intensity of reflected light can be produced with heartthrob
Changing.By the available PPG information of intensity for measuring reflected light.It certainly, can also be in some other implementations
PPG information is obtained according to the light intensity after finger tip transmits.
Existing PPG detection method requires user's body, such as finger, and being placed into specific region could complete to examine
It surveys, detection process is not flexible, low efficiency, poor user experience.
Summary of the invention
The purpose of the application is: a kind of PPG information detecting method and equipment is provided, to improve the flexibility of detection.
According to the application at least one embodiment in a first aspect, providing a kind of PPG information detecting method, the method
Include:
Screen is shown in response to an at least location contacts one for user's body, determines a target area on the display screen
Domain, the target area include that a transmission subregion and one receive subregion；
It controls the transmission subregion and sends one first optical signal；
It controls the reception subregion and receives one second optical signal of first optical signal after reflection or transmission；
The PPG information of the user is determined according to second optical signal.
Any possible implementation with reference to first aspect, in the second possible implementation, the response
Screen is shown in an at least location contacts one for user's body, determines that a target area includes: on the display screen
Screen is shown described in multiple location contacts in response to user's body, is determined on the display screen the multiple
The corresponding multiple contact areas in position；
The target area is determined according to the area of the multiple contact area and/or shape.
Any possible implementation with reference to first aspect, in the third possible implementation, the basis
The area and/or shape of the multiple contact area determine that the target area includes:
The target area is used as by area in the multiple contact area maximum one.
Any possible implementation with reference to first aspect, in the fourth possible implementation, the basis
The area and/or shape of the multiple contact area determine that the target area includes:
The target area is used as by one of the corresponding tip shape of shape in the multiple contact area.
Any possible implementation with reference to first aspect, in a fifth possible implementation, the basis
The area and/or shape of the multiple contact area determine that the target area includes:
Area in the multiple contact area is greater than one of a predetermined value and the corresponding tip shape of shape, as institute
State target area.
Any possible implementation with reference to first aspect, in a sixth possible implementation, the response
Screen is shown in an at least location contacts one for user's body, determines that a target area includes: on the display screen
In response to showing screen described in an at least location contacts described in user's body and meeting a preset trigger condition,
The target area is determined on the display screen.
Any possible implementation with reference to first aspect, it is described predetermined in the 7th kind of possible implementation
Trigger condition includes: that the fingerprint of the display screen capture belongs to a predetermined fingerprint set.
Any possible implementation with reference to first aspect, in the 8th kind of possible implementation, the target
It is identical that the region of the fingerprint is acquired on region and the display screen.
Any possible implementation with reference to first aspect, it is described predetermined in the 9th kind of possible implementation
Trigger condition includes: that the application program of the front stage operation of electronic equipment belonging to the display screen belongs to a predetermined application
Set.
Any possible implementation with reference to first aspect, in the tenth kind of possible implementation, the transmission
Subregion includes multiple transmission units, and the reception subregion includes multiple receiving units, the multiple transmission unit and described
Multiple receiving units are interspersed.
Any possible implementation with reference to first aspect, in a kind of the tenth possible implementation, described
The intensity of one optical signal is greater than an intensity threshold.
Any possible implementation with reference to first aspect, in the 12nd kind of possible implementation, described
One optical signal uses green light.
Any possible implementation with reference to first aspect, it is described aobvious in the 13rd kind of possible implementation
Display screen curtain is a Light-emitting diode LED screen.
Any possible implementation with reference to first aspect, in the 14th kind of possible implementation, the control
Making one first optical signal of the transmission subregion transmission includes:
By adding forward voltage to the corresponding pixel of the transmission subregion, the transmissions subregion transmission described the is controlled
One optical signal.
Any possible implementation with reference to first aspect, in the 15th kind of possible implementation, the control
It makes the reception subregion and receives one second optical signal of first optical signal after reflection or transmission and include:
By adding backward voltage to the corresponding pixel of the reception subregion, the receptions subregion reception described the is controlled
Two optical signals.
Any possible implementation with reference to first aspect, in the 16th kind of possible implementation, the side
Method further include:
The heart rate information and/or respiratory rate information of the user are determined according to the PPG information.
According to the second aspect of at least one embodiment of the application, a kind of PPG information detecting apparatus, the equipment are provided
Include:
One target area determining module shows screen for at least location contacts one in response to user's body, in institute
It states and determines a target area on display screen, the target area includes that a transmission subregion and one receive subregion；
One control module sends one first optical signal, and control reception for controlling the transmission subregion
Region receives one second optical signal of first optical signal after reflection or transmission；
One PPG information determination module, for determining the PPG information of the user according to second optical signal.
In conjunction with any possible implementation of second aspect, in the second possible implementation, the target
Area determination module includes:
One contact area determination unit, for showing screen described in multiple location contacts in response to user's body, in institute
It states and determines the corresponding multiple contact areas in the multiple position on display screen；
One target area determination unit, for determining the mesh according to the area and/or shape of the multiple contact area
Mark region.
In conjunction with any possible implementation of second aspect, in the third possible implementation, the target
Area determination unit, for being used as the target area for area in the multiple contact area maximum one.
In conjunction with any possible implementation of second aspect, in the fourth possible implementation, the target
Area determination unit, for being used as the target area for one of the corresponding tip shape of shape in the multiple contact area
Domain.
In conjunction with any possible implementation of second aspect, in a fifth possible implementation, the target
Area determination unit, for area in the multiple contact area to be greater than the one of a predetermined value and the corresponding tip shape of shape
It is a, as the target area.
In conjunction with any possible implementation of second aspect, in a sixth possible implementation, the target
Area determination module, in response to showing screen described in an at least location contacts described in user's body and meeting a predetermined touching
Clockwork spring part determines the target area on the display screen.
In conjunction with any possible implementation of second aspect, in the 7th kind of possible implementation, the display
Screen is a LED screen.
In conjunction with any possible implementation of second aspect, in the 8th kind of possible implementation, the control
Module, for controlling described in the transmission subregion transmission by adding forward voltage to the corresponding pixel of the transmission subregion
First optical signal, and,
By adding backward voltage to the corresponding pixel of the reception subregion, the receptions subregion reception described the is controlled
Two optical signals.
In conjunction with any possible implementation of second aspect, in the 9th kind of possible implementation, the equipment
Further include:
One third determining module, for determining the heart rate information and/or respiratory rate of the user according to the PPG information
Information.
The embodiment of the present application the method and equipment show screen in response to an at least location contacts one on user's body,
Determine that the target area, the target area include the transmission subregion and the reception sub-district on the display screen
Domain, and then the transmission subregion and the reception subregion are sent out, receive photocontrol, the final PPG information for determining user,
That is, the detection position of user's body can be placed on any position of the display screen by user, the method can
Detection zone is set by the corresponding target area with adaptive, to improve detection flexibility and detection efficiency.
Detailed description of the invention
Fig. 1 is a kind of PPG infomation detection principle schematic；
Fig. 2 is the flow chart of PPG information detecting method described in the application one embodiment；
Fig. 3 is the refined flow chart of step S220 described in one embodiment of the application；
Fig. 4 is contact area schematic diagram of different shapes in one embodiment of the application；
Fig. 5 is transmission subregion described in one embodiment of the application and the positional diagram for receiving subregion；
Fig. 6 is transmission subregion described in the application another embodiment and the positional relationship signal for receiving subregion
Figure；
Fig. 7 is transmission subregion described in the application another embodiment and the positional relationship signal for receiving subregion
Figure；
Fig. 8 is the flow chart of PPG information detecting method described in the application another embodiment；
Fig. 9 is the module map of PPG information detecting apparatus described in the application one embodiment；
Figure 10 is the module map of target area determining module described in one embodiment of the application；
Figure 11 is the module map of PPG information detecting apparatus described in one embodiment of the application；
Figure 12 is the hardware structural diagram of PPG information detecting apparatus described in one embodiment of the application.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the application is described in further detail.Implement below
Example is not limited to scope of the present application for illustrating the application.
It will be appreciated by those skilled in the art that the size of the serial number of following each steps is not intended in embodiments herein
Execution sequence it is successive, the execution of each step sequence should be determined by its function and internal logic, and implement without coping with the application
The implementation process of example constitutes any restriction.
The reason of inventor has found in the course of the research, leads to poor existing PPG infomation detection process flexibility, low efficiency
It is, the position of illumination region and light absorbing part is fixed, and the detection position of user is needed to remove adaptation testing equipment.It therefore, if can be with
Detection position is actively adapted to by testing equipment, then can significantly improve detection flexibility and detection efficiency.
Fig. 2 is the flow chart of PPG information detecting method described in the application one embodiment, and the method can be for example
It is realized on PPG information detecting apparatus.As shown in Figure 2, which comprises
S220: screen is shown in response to an at least location contacts one for user's body, determines one on the display screen
Target area, the target area include that a transmission subregion and one receive subregion；
S240: the control transmission subregion sends one first optical signal；
S260: the control subregion that receives receives one second light letter of first optical signal after reflection or transmission
Number；
S280: the PPG information of the user is determined according to second optical signal.
The embodiment of the present application the method shows screen in response to an at least location contacts one on user's body, described
It showing and determines the target area on screen, the target area includes the transmission subregion and the reception subregion, into
And the transmission subregion and the reception subregion are sent out, receive photocontrol, the final PPG information for determining user, also
It is to say, the detection position of user's body can be placed on any position of the display screen by user, and the method can be certainly
What is adapted to sets detection zone for the corresponding target area, to improve detection flexibility and detection efficiency.
Below with reference to specific embodiment, the function of described step S220, S240, S260 and S280 is described in detail.
S220: screen is shown in response to an at least location contacts one for user's body, determines one on the display screen
Target area, the target area include that a transmission subregion and one receive subregion.
Wherein, an at least position for the user's body can be any portion that can be in contact with the display screen
Position, in general, its hand that can be user, such as finger.
The display screen can be the display screen of an electronic equipment, such as the display screen of mobile phone.
The target area is to be selected for carrying out user in the region of PPG infomation detection on the display screen,
It is related to user's body and the display contact area of screen.At only one position of user and the display screen contact
In the case of, the target area directly can be determined according to contact area corresponding with the position on the display screen.?
It, that is, can basis in the case where corresponding to multiple contact areas in the case that user has multiple positions and the display screen contact
Some preferable contact areas determine the target area.
Specifically, in one embodiment, the step S220 may include: referring to Fig. 3
S221: showing screen described in multiple location contacts in response to user's body, determines institute on the display screen
State the corresponding multiple contact areas in multiple positions；
S222: the target area is determined according to the area of the multiple contact area and/or shape.
Wherein, in the step S221, the corresponding multiple contact areas in the multiple position can be by described aobvious
The such as detections such as capacitance sensor, optical sensor on display screen curtain determine.
In the step S222, the area and shape of the multiple contact area can be such as according to the display screens
On capacitance profile variation determine.
In one embodiment, the step S222 can be specifically included:
S222a: the target area is used as by area in the multiple contact area maximum one.
That is, the area of the multiple contact area can be calculated separately, the maximum work of area is then selected
For the target area.In general, may cause if the area of user's body and the contact area of the display screen is too small
Accuracy in detection is poor；Conversely, the contact area of larger area, can significantly improve accuracy in detection.Therefore, present embodiment
In, by choosing the maximum contact area of area as the target area, it can effectively improve accuracy in detection.
In another embodiment, the step S222 can be specifically included:
S222b: the target area is used as by one of the corresponding tip shape of shape in the multiple contact area.
The multiple contact area corresponds to multiple and different positions of user's body, and inventor has found in the course of the research, people
Finger position capillary it is abundant, be more advantageous to the accuracy for improving PPG infomation detection, therefore, it should preferentially make with finger
For detection position.
Referring to fig. 4, there is shown two contact areas of different shapes determined on the display screen 400: the
One contact area 410 and the second contact area 420.First contact area 410 is substantially oblong-shaped, is that index finger tip is corresponding
Contact area；Second contact area 420 is in non-type semilune, is the corresponding contact area of palm.
The shape of the multiple contact area can be calculated into phase with scheduled tip shape respectively in the step S222b
Like degree, select similarity highest one as the target area.The tip shape can such as be that preparatory training obtains
User finger finger tip and the display screen contact when the obtained shape of contact area.
In another embodiment, the step S222 can be specifically included:
S222c: being greater than one of a predetermined value and the corresponding tip shape of shape for area in the multiple contact area,
As the target area.
In present embodiment, the area and shape of contact area are comprehensively considered, to improve accuracy in detection as far as possible.Its
In, the predetermined value can be set according to actually detected effect, for example can be set to 0.0001 square metre.
In the step S220, the subregion that sends is the area for sending optical signal to the contact site of user's body
Domain, the subregion that receives is the region for receiving optical signal.
In one embodiment, sending subregion 411 and receiving subregion 412 can be the mesh as shown in Figure 5
Mark two regions adjacent in region.
As shown in fig. 6, in one embodiment, on display screen 500, sending subregion includes multiple transmission units
611, receiving subregion includes multiple receiving units 612, and the multiple transmission unit 611 and the multiple receiving unit 612 are handed over
Mistake distribution.Wherein, the transmission unit such as can be the OLED (Organic Light-Emitting Diode, it is organic
Light emitting diode) display pixel in luminance on screen, the receiving unit such as can be the display screen
The display pixel in reception light state on 600.
As shown in fig. 7, in another embodiment, one end of display screen 700 is cylindrical in shape structure, the target area
Including transmission subregion 710 and receive 720 Relative distribution of subregion.That is, the transmission subregion 710 and described connecing
Receiving subregion 720 can be separation, and nonessential adjacent.In present embodiment, such as user's body can be shown with described
The contact area of display screen curtain 700 is first determined as the first sub-goal region, and the opposite region of the contact area is then determined as
Two sub-goal regions, first sub-goal region and second sub-goal region collectively form the target area.It is described
First sub-goal region can be further used as the transmission subregion 710, and second sub-goal region can further be made
For the reception subregion 720；Vice versa.
S240: the control transmission subregion sends one first optical signal.
In one embodiment, as it was noted above, the display screen can be OLED screen curtain, the step S240 can
To include:
S240 ': it by adding forward voltage to the corresponding pixel of the transmission subregion, controls the transmission subregion and sends
First optical signal.It will be appreciated by those skilled in the art that when some pixel to OLED display screen applies forward voltage, it should
Pixel is in luminance.
Inventor has found in the course of the research, in order to improve the accuracy in detection of the PPG information, can be improved described
The intensity of one optical signal guarantees that the intensity of first optical signal is greater than an intensity threshold, the intensity threshold can basis
Practical application setting, for example can be set to 390cd/ ㎡.
In addition, since assimilation effect of the hemoglobin in blood for green light is best, it is accurate in order to improve detection
Degree, first optical signal can use green light.
S260: the control subregion that receives receives one second light letter of first optical signal after reflection or transmission
Number.
In one embodiment, the display screen can be LED screen (OLED screen curtain or LED array screen), institute
Stating step S260 may include:
S260 ': it by adding backward voltage to the corresponding pixel of the reception subregion, controls the reception subregion and receives
Second optical signal.It will be appreciated by those skilled in the art that when some pixel to OLED display screen applies backward voltage, it should
Pixel, which is in, receives light state.
In addition, it will be appreciated by those skilled in the art that in the case where the display screen is not LED screen, by described
Optical sensor is set on display screen, to receive second optical signal, the present invention program also may be implemented.
Reflection mode and transmission mode are that two kinds of basic modes of detection PPG information can be right using different implementations
The display screen, and different requirements is generated to the transmission subregion and the positional relationship for receiving subregion.
In one embodiment, second optical signal is that first optical signal is anti-through the contact site of user's body
It is obtained after penetrating, such case can be adapted for more display screen, for example can be any one display of Fig. 5, Fig. 6, Fig. 7
Screen.Also, in this case, the transmission subregion and the reception subregion adjacent as Fig. 5 or Fig. 6 can both be set
It sets, can also be separately positioned, only when separately positioned, the normal for sending subregion and the normal for receiving subregion
Between angle should meet light reflection requirement, such as can be 45 °.
In another embodiment, second optical signal is that first optical signal obtains after the transmission of user's body
It arrives, needs the display screen to have the function of certain bending in this case, for example can be display screen shown in Fig. 7,
In general, the display screen can use flexible display material in this case, so that the shape of the display screen can be with
Change with user demand.Correspondingly, in this case, the transmission subregion and the reception subregion generally can be such as Fig. 7 institutes
Show separately positioned, and plane where the two is parallel to each other (or close to be parallel to each other).
S280: the PPG information of the user is determined according to second optical signal.
Wherein, due to the periodic pulses of heart, the blood flow that will lead to detection position generates periodically variation, into
And the uptake to first optical signal is influenced, periodically variation is generated so as to cause the intensity of second optical signal.
Therefore, according to the intensity of second optical signal received, it can determine the PPG information.
In addition, it is necessary to explanation, in order to further increase the accuracy of PPG infomation detection, user's body with it is described
In the case where showing that screen has multiple contact positions, it can also determine multiple (comprising two) target areas, execute respectively
Method is stated, two group of second optical signal is obtained, then PPG information described in COMPREHENSIVE CALCULATING.
Referring to Fig. 8, in one embodiment, the method can also include:
S290: the heart rate information and/or respiratory rate information of the user are determined according to the PPG information.
Wherein, heart rate is one of four big vital signs of human body, and the stabilization of heart rate whether directly reflects cardiac function
Quality.Respiratory rate is the sensitive indicator of acute respiration dysfunction, and whether measures cardiac function quality and gas exchanges
Normal important indicator.It, can be with it will be appreciated by those skilled in the art that using digital filtering, Wavelet Transform and power spectrum method etc.
Heart rate information and/or respiratory rate information are calculated from the PPG information.To be obtained according to herein described method
The important physical signs such as heart rate, the respiratory rate at family are taken, are conducive to effectively monitor the health status of user.Further
, these health status relevant informations can be sent to the kith and kin of user or user, with call user's attention health.
In another embodiment, the step S220 can be further are as follows:
S220 ': in response to showing screen described in an at least location contacts described in user's body and meeting a predetermined trigger
Condition determines the target area on the display screen.
That is, herein described method can be limited one by the preset trigger condition according to user demand
It is just executed in a little specific situations.
In one embodiment, the preset trigger condition includes: that the fingerprint of the display screen capture belongs to one in advance
Determine fingerprint set.Wherein, the predetermined fingerprint set may include the fingerprint of some users for being previously obtained authorization, for example,
It is described display screen be a smart phone display screen in the case where, may include in the predetermined fingerprint set owner and
The fingerprint of the spouse of owner.
In one embodiment, in order to facilitate user, the finger is acquired on the target area and the display screen
The region of line is identical.For example, the display screen can adopt the contact area of user on the display screen as fingerprint
Collect region, if the fingerprint of acquisition belongs to the predetermined fingerprint set, the contact area is further determined as the mesh
Region is marked, the PPG information detecting method is then executed.
In another embodiment, the preset trigger condition includes: electronic equipment belonging to the display screen
The application program of front stage operation belongs to a predetermined application set.
It is suitable for the application program for detecting the PPG information of user that the predetermined application set, which includes some,.In other words,
In these application programs in the case where front stage operation, user's body and the contact of the display screen are relatively stable.For example, institute
State may include: voice procedure, e-book program, video reproduction program etc. in predetermined application set.By this limitation,
It can be during user's normal use electronic equipment, in the PPG information of the detection user of accidentally efficiently and accurately.
In addition, the embodiment of the present application also provides a kind of computer-readable medium, including perform the following operation when executed
Computer-readable instruction: execute step S220, S240, S260 and S280's of the method in above-mentioned Fig. 2 illustrated embodiment
Operation.
To sum up, the embodiment of the present application the method can pass through electronics during user's normal use electronic equipment
The display screen of equipment detects the PPG information for determining user, and may further determine that the health such as the heart rate of user, respiratory rate
Information, the health status of user is monitored so as to flexible, efficient completion PPG infomation detection, and easily and effectively.
Fig. 9 is the modular structure schematic diagram of PPG information detecting apparatus described in the application one embodiment, and the equipment can be with
An independent equipment for detecting user's PPG information, it is of course also possible to as a functional module it is integrally disposed in than
Such as smart phone, wait in other any electronic equipments.Referring to Fig. 9, the equipment 900 may include:
One target area determining module 910 shows screen for at least location contacts one in response to user's body,
Determine that a target area, the target area include that a transmission subregion and one receive subregion on the display screen；
One control module 920 sends one first optical signal, and the control reception for controlling the transmission subregion
Subregion receives one second optical signal of first optical signal after reflection or transmission；
One PPG information determination module 930, for determining the PPG information of the user according to second optical signal.
Equipment described in the embodiment of the present application shows screen in response to an at least location contacts one on user's body, described
It showing and determines the target area on screen, the target area includes the transmission subregion and the reception subregion, into
And the transmission subregion and the reception subregion are sent out, receive photocontrol, the final PPG information for determining user, also
It is to say, the detection position of user's body can be placed on any position of the display screen by user, and the equipment can be certainly
What is adapted to sets detection zone for the corresponding target area, to improve detection flexibility and detection efficiency.
Below with reference to specific embodiment, the target area determining module 910, the control module is described in detail
920 and the PPG information determination module 930 function.
The target area determining module 910 shows screen for at least location contacts one in response to user's body,
Determine that a target area, the target area include that a transmission subregion and one receive subregion on the display screen.
Wherein, an at least position for the user's body can be any portion that can be in contact with the display screen
Position, in general, its hand that can be user, such as finger.
The display screen can be the display screen of the equipment 900, for example the equipment 900 is a mobile phone, described
Display screen is the display screen of the mobile phone.
The target area is to be selected for carrying out user in the region of PPG infomation detection on the display screen,
It is related to user's body and the display contact area of screen.At only one position of user and the display screen contact
In the case of, the target area directly can be determined according to contact area corresponding with the position on the display screen.?
It, that is, can basis in the case where corresponding to multiple contact areas in the case that user has multiple positions and the display screen contact
Some preferable contact areas determine the target area.
Specifically, in one embodiment, the target area determining module 910 may include: referring to Figure 10
One contact area determination unit 911, for showing screen described in multiple location contacts in response to user's body,
The corresponding multiple contact areas in the multiple position are determined on the display screen；
One target area determination unit 912, for according to the area of the multiple contact area and/or shape determination
Target area.
Wherein, the contact area determination unit 911, can by it is described display screen on such as capacitance sensor,
The detections such as optical sensor determine the multiple contact area.
The target area determination unit 912, can be such as true according to the variation for showing the capacitance profile on screen
The area and shape of fixed the multiple contact area.
In one embodiment, the target area determination unit 912 is used for area in the multiple contact area
Maximum one is used as the target area.By choosing the maximum contact area of area as the target area, Ke Yiyou
Effect improves accuracy in detection.
In another embodiment, the target area determination unit 912 is used for shape in the multiple contact area
One of the corresponding tip shape of shape is used as the target area.
Inventor has found that the finger position capillary of people is abundant in the course of the research, is more advantageous to and improves the inspection of PPG information
The accuracy of survey.In present embodiment, the target area determination unit 912 can be by the shape of the multiple contact area
Respectively with scheduled tip shape calculate similarity, select similarity highest one as the target area.The finger tip
The contact zone that shape obtains when can such as be the finger tip and the display screen contact of the finger for the user that preparatory training obtains
The shape in domain.
In another embodiment, the target area determination unit 912 is used for face in the multiple contact area
Product is greater than one of a predetermined value and the corresponding tip shape of shape, as the target area.
The subregion that sends is the region for sending optical signal to the contact site of user's body, the reception sub-district
Domain is the region for receiving optical signal.The transmission subregion and the positional relationship for receiving subregion can be there are many feelings
Condition, including but not limited to Fig. 5, Fig. 6, positional relationship shown in Fig. 7.
The control module 920 sends one first optical signal for controlling the transmission subregion, and connects described in control
It receives subregion and receives one second optical signal of first optical signal after reflection or transmission.
In one embodiment, the display screen can be LED screen (OLED screen curtain or LED array screen), institute
Control module 920 is stated, can be used for controlling transmission by adding forward voltage to the corresponding pixel of the transmission subregion
Region sends first optical signal, and, by adding backward voltage to the corresponding pixel of the reception subregion, described in control
It receives subregion and receives second optical signal.
It will be appreciated by those skilled in the art that the pixel is in when some pixel to LED display screen applies forward voltage
Luminance；When some pixel to LED display screen applies backward voltage, which, which is in, receives light state.
Inventor has found in the course of the research, in order to improve the accuracy in detection of the PPG information, can be improved described
The intensity of one optical signal guarantees that the intensity of first optical signal is greater than an intensity threshold, the intensity threshold can basis
Practical application setting, for example can be set to 390cd/ ㎡.
In addition, since assimilation effect of the hemoglobin in blood for green light is best, it is accurate in order to improve detection
Degree, first optical signal can use green light.
Reflection mode and transmission mode are that two kinds of basic modes of detection PPG information can be right using different implementations
The display screen, and different requirements is generated to the transmission subregion and the positional relationship for receiving subregion.
In one embodiment, second optical signal is that first optical signal is anti-through the contact site of user's body
It is obtained after penetrating, such case can be adapted for more display screen, for example can be any one display of Fig. 5, Fig. 6, Fig. 7
Screen.Also, in this case, the transmission subregion and the reception subregion adjacent as Fig. 5 or Fig. 6 can both be set
It sets, can also be separately positioned, only when separately positioned, the normal for sending subregion and the normal for receiving subregion
Between angle should be acute angle or right angle, such as can be 45 °.
In another embodiment, second optical signal is that first optical signal obtains after the transmission of user's body
It arrives, needs the display screen to have the function of certain bending in this case, for example can be display screen shown in Fig. 7,
In general, the display screen can use flexible display material in this case, so that the shape of the display screen can be with
Change with user demand.Correspondingly, in this case, the transmission subregion and the reception subregion generally can be such as Fig. 7 institutes
Show separately positioned, and plane where the two is parallel to each other (or close to be parallel to each other).
The PPG information determination module 930, for determining the PPG information of the user according to second optical signal.
It will be appreciated by those skilled in the art that according to the intensity of second optical signal received, it can determine the PPG
Information.
Referring to Figure 11, in one embodiment, the equipment 900 further include:
One third determining module 940, for determining heart rate information and/or the breathing of the user according to the PPG information
Frequency information.
It, can be from described it will be appreciated by those skilled in the art that using digital filtering, Wavelet Transform and power spectrum method etc.
Heart rate information and/or respiratory rate information are calculated in PPG information.To according to the available user of herein described equipment
The important physical signs such as heart rate, respiratory rate, be conducive to effectively monitor the health status of user.Further, may be used
These health status relevant informations to be sent to the kith and kin of user or user, with call user's attention health.
In another embodiment, the target area determining module 910, in response to described in user's body extremely
Screen is shown described in few location contacts and meets a preset trigger condition, determines the target area on the display screen
Domain.
That is, herein described equipment can be limited one by the preset trigger condition according to user demand
Just start PPG detection function in a little specific situations.
In one embodiment, the preset trigger condition includes: that the fingerprint of the display screen capture belongs to one in advance
Determine fingerprint set.Wherein, the predetermined fingerprint set may include the fingerprint of some users for being previously obtained authorization, for example,
It is described display screen be a smart phone display screen in the case where, may include in the predetermined fingerprint set owner and
The fingerprint of the spouse of owner.
In another embodiment, the preset trigger condition includes: electronic equipment belonging to the display screen
The application program of front stage operation belongs to a predetermined application set.
It is suitable for the application program for detecting the PPG information of user that the predetermined application set, which includes some,.In other words,
In these application programs in the case where front stage operation, user's body and the contact of the display screen are relatively stable.For example, institute
State may include: voice procedure, e-book program, video reproduction program etc. in predetermined application set.By this limitation,
The PPG information of user can be determined in the detection of accidentally efficiently and accurately during user's normal use electronic equipment.
One application scenarios of PPG information detecting method and equipment described in the embodiment of the present application can be such that user uses
One smart phone is made a phone call, which includes two display screens: front screen and reverse side screen, two screens are
OLED screen curtain；User manipulates the application icon on front screen and starts voice procedure, and reverse side screen is in screen lock state；Work as user
Hand-held phone close in one's ear when, front screen is dimmed, to prevent maloperation；Meanwhile reverse side screen is lighted, and detects user's
In the middle part of forefinger contact screen, contact area is determined as target area by smart phone, and target area is divided into transmission sub-district
Domain and reception subregion；Then, control sends the pixel emission green light in subregion, and the pixel controlled and received in subregion receives
The reflected light of finger；The PPG information of user is finally determined according to reflected light, and then the health and fitness information of user is calculated, and defeated
Out to user.
The hardware configuration of PPG information detecting apparatus described in another embodiment of the application is as shown in figure 12.The application is specific
Embodiment does not limit the specific implementation of the PPG information detecting apparatus, and referring to Figure 12, the equipment 1200 be can wrap
It includes:
Processor (processor) 1210,1220, memory communication interface (Communications Interface)
(memory) 1230 and communication bus 1240.Wherein:
Processor 1210, communication interface 1220 and memory 1230 complete mutual lead to by communication bus 1240
Letter.
Communication interface 1220, for being communicated with other network elements.
Processor 1210 can specifically execute the phase in above-mentioned embodiment of the method shown in FIG. 1 for executing program 1232
Close step.
Specifically, program 1232 may include program code, and said program code includes computer operation instruction.
Processor 1210 may be a central processor CPU or specific integrated circuit ASIC (Application
Specific Integrated Circuit), or be arranged to implement the integrated electricity of one or more of the embodiment of the present application
Road.
Memory 1230, for storing program 1232.Memory 1230 may include high speed RAM memory, it is also possible to also
Including nonvolatile memory (non-volatile memory), for example, at least a magnetic disk storage.Program 1232 specifically may be used
To execute following steps:
Screen is shown in response to an at least location contacts one for user's body, determines a target area on the display screen
Domain, the target area include that a transmission subregion and one receive subregion；
It controls the transmission subregion and sends one first optical signal；
It controls the reception subregion and receives one second optical signal of first optical signal after reflection or transmission；
The PPG information of the user is determined according to second optical signal.
The specific implementation of each step may refer to corresponding steps or module in above-described embodiment in program 1232, herein not
It repeats.It is apparent to those skilled in the art that for convenience and simplicity of description, the equipment and mould of foregoing description
The specific work process of block can refer to corresponding processes in the foregoing method embodiment description, and details are not described herein.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and method and step can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
Scope of the present application.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, controller or network equipment etc.) execute each embodiment the method for the application all or part of the steps.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
Embodiment of above is merely to illustrate the application, and is not the limitation to the application, in relation to the common of technical field
Technical staff can also make a variety of changes and modification in the case where not departing from spirit and scope, therefore all
Equivalent technical solution also belongs to the scope of the application, and the scope of patent protection of the application should be defined by the claims.
Claims (10)
1. a kind of photoplethysmographic PPG information detecting method, which is characterized in that the described method includes:
Screen is shown in response to an at least location contacts one for user's body, determines a target area on the display screen,
The target area includes that a transmission subregion and one receive subregion；
It controls the transmission subregion and sends one first optical signal；
It controls the reception subregion and receives one second optical signal of first optical signal after reflection or transmission；
The PPG information of the user is determined according to second optical signal.
2. the method as described in claim 1, which is characterized in that at least location contacts one in response to user's body are aobvious
Display screen curtain determines that a target area includes: on the display screen
Screen is shown described in multiple location contacts in response to user's body, determines the multiple position on the display screen
Corresponding multiple contact areas；
The target area is determined according to the area of the multiple contact area and/or shape.
3. the method as described in claim 1, which is characterized in that at least location contacts one in response to user's body are aobvious
Display screen curtain determines that a target area includes: on the display screen
In response to showing screen described in an at least location contacts described in user's body and meeting a preset trigger condition, described
It shows and determines the target area on screen.
4. the method as described in claim 1, which is characterized in that the transmission subregion includes multiple transmission units, described to connect
Receiving subregion includes multiple receiving units, and the multiple transmission unit and the multiple receiving unit are interspersed.
5. the method as described in claim 1, which is characterized in that the intensity of first optical signal is greater than an intensity threshold.
6. the method as described in claim 1, which is characterized in that first optical signal uses green light.
7. the method as described in claim 1, which is characterized in that the display screen is a Light-emitting diode LED screen.
8. method as described in any one of claim 1 to 7, which is characterized in that the method also includes:
The heart rate information and/or respiratory rate information of the user are determined according to the PPG information.
9. a kind of PPG information detecting apparatus, which is characterized in that the equipment includes:
One target area determining module shows screen for at least location contacts one in response to user's body, described aobvious
Determine that a target area, the target area include that a transmission subregion and one receive subregion on display screen curtain；
One control module sends one first optical signal, and the control reception subregion for controlling the transmission subregion
Receive one second optical signal of first optical signal after reflection or transmission；
One PPG information determination module, for determining the PPG information of the user according to second optical signal.
10. a kind of electronic equipment, which is characterized in that the electronic equipment includes that PPG infomation detection as claimed in claim 9 is set
It is standby.
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| CN201510110316.0A CN106020564B (en) | 2015-03-13 | 2015-03-13 | PPG information detecting method and equipment |
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| CN106020564B true CN106020564B (en) | 2018-12-25 |
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| CN107958145B (en) * | 2016-11-03 | 2023-03-14 | 柳州梓博科技有限公司 | Display device and electronic device |
| CN108021854A (en) * | 2016-11-03 | 2018-05-11 | 深圳信炜科技有限公司 | Biological identification device and electronic device |
| CN110141197B (en) * | 2019-06-15 | 2022-04-12 | 出门问问信息科技有限公司 | Electronic equipment with display screen |
| CN111248889B (en) * | 2020-01-19 | 2021-10-08 | 浙江大学 | Pulse wave measuring device and method based on LED diode and LED display matrix |
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| CN202364268U (en) * | 2011-11-24 | 2012-08-01 | 东莞宇龙通信科技有限公司 | Flip cellphone with blood flow detecting function |
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| CN104049803A (en) * | 2014-06-16 | 2014-09-17 | 深圳市汇顶科技股份有限公司 | Mobile terminal |
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| KR20080090194A (en) * | 2007-04-04 | 2008-10-08 | 엘지전자 주식회사 | Method for detecting blood pressure and apparatus thereof |
| US20090203998A1 (en) * | 2008-02-13 | 2009-08-13 | Gunnar Klinghult | Heart rate counter, portable apparatus, method, and computer program for heart rate counting |
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| CN103228205A (en) * | 2011-01-20 | 2013-07-31 | 日东电工株式会社 | Devices and methods for photoplethysmographic measurements |
| CN202364268U (en) * | 2011-11-24 | 2012-08-01 | 东莞宇龙通信科技有限公司 | Flip cellphone with blood flow detecting function |
| CN104049803A (en) * | 2014-06-16 | 2014-09-17 | 深圳市汇顶科技股份有限公司 | Mobile terminal |
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