Physiological parameter detection method and device and storage medium
By performing transmissive detection on the terminal with a folding screen, using the detection sensor to detect light intensity, the problem of insufficient accuracy of reflective detection is solved, the same accuracy and medical certification as transmissive detection is achieved, and convenient physiological parameters are provided Detection method.
Patent Information
- Application Number
- CN202310805289.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-30
- Publication Date
- 2024-12-31
AI Technical Summary
In the prior art, the results of the reflective blood oxygen saturation and heart rate detection are not accurate enough and have not been medically recognized, so it cannot replace the transmission detection.
Transmitted physiological parameter detection is performed using a terminal with a folding screen, pre-calibrated target light is emitted through the first screen, and the light intensity is detected by the detection sensor on the second screen (such as brightness sensor, camera, and under-screen optical fingerprint sensor) to achieve the Accurate detection of blood oxygen saturation and heart rate.
It improves the detection accuracy, achieves the same medical certification level as transmissive detection, provides convenient physiological parameter detection methods, and avoids the need to use special detection instruments.
Smart Images
Figure CN119214591A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of terminal technology, and in particular to a physiological parameter detection method, device and storage medium. Background Art
[0002] With the development of society, the technology of physiological parameter detection is also developing day by day.
[0003] In the related art, the detection of physiological parameters mainly relies on special physiological parameter detection instruments. For example, the detection of physiological parameters such as blood oxygen saturation requires the use of a special oximeter for transmission detection. Summary of the invention
[0004] In order to overcome the problems existing in the related art, the present disclosure provides a physiological parameter detection method, device and storage medium.
[0005] According to a first aspect of an embodiment of the present disclosure, a physiological parameter detection method is provided, the method comprising: in response to a terminal with a folding screen detecting an instruction to perform physiological parameter detection, controlling a position area corresponding to the detection sensor in the second screen to emit target light, the light intensity of the target light after passing through the detection position is used to detect the physiological parameter, the detection sensor has a function of detecting the light intensity of the target light, and the folding screen is in a folded state; obtaining the light intensity of the target light passing through the detection position and detected by the detection sensor; and determining the physiological parameter based on the light intensity.
[0006] In one embodiment, before controlling the position area corresponding to the detection sensor in the second screen to emit target light, the method further includes: determining that the detection sensor disposed on the first screen of the folding screen is covered by the user's detection area.
[0007] In one embodiment, the target light has a pre-calibrated wavelength; the step of obtaining the light intensity of the target light passing through the detection portion and detected by the detection sensor includes: filtering the target light after passing through the detection portion to obtain the target light having the pre-calibrated wavelength; and detecting the light intensity of the pre-set wavelength by the detection sensor.
[0008] In one embodiment, the detection sensor is a brightness sensor in the terminal; the filtering processing of the target light after transmitting the detection part includes: filtering the target light after transmitting the detection part through a filter; the filter is arranged on the upper layer of the brightness sensor, or on the middle layer of the brightness sensor.
[0009] In one embodiment, the detection sensor is a camera in the terminal; the filtering processing of the target light after transmitting the detection part includes: filtering the target light after transmitting the detection part through a filter in a pixel in the camera corresponding to the emission of the target light.
[0010] In one implementation, the pixels corresponding to the emission of the target light are some pixels among all pixels in the camera that can detect the target light.
[0011] In one implementation, the detection sensor is an under-screen optical fingerprint sensor.
[0012] In one embodiment, the physiological parameter includes at least one of the following: blood oxygen saturation and heart rate; and the target light is red light.
[0013] According to a second aspect of an embodiment of the present disclosure, a physiological parameter detection device is provided, the device comprising: a processing unit, for controlling the position area corresponding to the detection sensor in the second screen to emit target light in response to a terminal with a folding screen detecting an instruction to perform physiological parameter detection, the light intensity of the target light after passing through the detection part is used to detect the physiological parameter, the detection sensor has a function of detecting the light intensity of the target light, and the folding screen is in a folded state; an acquisition unit, for acquiring the light intensity of the target light passing through the detection part and detected by the detection sensor; a determination unit, for determining the physiological parameter based on the light intensity.
[0014] In one embodiment, the processing unit is further used to: before controlling the position area corresponding to the detection sensor in the second screen to emit target light, determine that the detection sensor arranged on the first screen of the folding screen is covered by the user's detection part.
[0015] In one embodiment, the target light has a pre-calibrated wavelength; the acquisition unit acquires the intensity of the light after the target light passes through the detection portion and is detected by the detection sensor in the following manner: filtering the target light after passing through the detection portion to acquire the target light with the pre-calibrated wavelength; and detecting the intensity of the light with the pre-set wavelength by the detection sensor.
[0016] In one embodiment, the detection sensor is a brightness sensor in the terminal; the acquisition unit filters the target light after transmitting the detection part in the following manner: filtering the target light after transmitting the detection part through a filter; the filter is arranged on the upper layer of the brightness sensor, or on the middle layer of the brightness sensor.
[0017] In one embodiment, the detection sensor is a camera in the terminal; the acquisition unit filters the target light after transmitting the detection part in the following manner: the target light after transmitting the detection part is filtered through a filter in a pixel in the camera corresponding to the emission of the target light.
[0018] In one implementation, the pixels corresponding to the emission of the target light are some pixels among all pixels in the camera that can detect the target light.
[0019] In one implementation, the detection sensor is an under-screen optical fingerprint sensor.
[0020] In one embodiment, the physiological parameter includes at least one of the following: blood oxygen saturation and heart rate; and the target light is red light.
[0021] According to a third aspect of an embodiment of the present disclosure, a terminal is provided, the terminal having a folding screen, the terminal comprising:
[0022] A processor; a memory for storing instructions executable by the processor; wherein the processor is configured to: detect an instruction for performing physiological parameter detection, control the position area corresponding to the detection sensor in the second screen to emit target light, obtain the light intensity of the target light passing through the detection site and detected by the detection sensor, and determine the physiological parameter based on the light intensity, the light intensity of the target light after passing through the detection site is used to detect the physiological parameter, the detection sensor has the function of detecting the light intensity of the target light, and the folding screen is in a folded state.
[0023] In one embodiment, the detection sensor is at least one of the following: a brightness sensor; a camera; an under-screen optical fingerprint sensor.
[0024] In one embodiment, the detection sensor is a brightness sensor, and the terminal further comprises: a narrow spectrum filter disposed on an upper layer of the brightness sensor or on a middle layer of the brightness sensor.
[0025] In one embodiment, the detection sensor is a camera, and the terminal further comprises: a narrow spectrum filter disposed in a pixel corresponding to the pixel emitting the target light.
[0026] According to a fourth aspect of an embodiment of the present disclosure, a storage medium is provided, in which instructions are stored. When the instructions in the storage medium are executed by a processor of a terminal, the terminal is enabled to execute the method described in the first aspect or any one of the embodiments of the first aspect.
[0027] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: emitting target light based on the first screen of a terminal with a folding screen, detecting the light intensity of the target light based on an inspection sensor of the second screen, and determining physiological parameters based on the detected light intensity, thereby achieving transmissive physiological parameter detection of the user's detection part.
[0028] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.
[0030] Figure 1A-Figure 1C It is a schematic diagram showing the structure of a terminal with a folding screen according to an embodiment of the present disclosure.
[0031] Figure 2 It is a schematic diagram of physiological parameter detection shown in an exemplary embodiment of the present disclosure.
[0032] Figure 3 It is a schematic diagram of physiological parameter detection shown in an exemplary embodiment of the present disclosure.
[0033] Figure 4 It is a schematic diagram of physiological parameter detection shown in an exemplary embodiment of the present disclosure.
[0034] Figure 5A is a flow chart of a physiological parameter detection method according to an exemplary embodiment.
[0035] Figure 5B A schematic diagram showing the relationship between light wavelength and molar absorption coefficient in an exemplary embodiment is shown.
[0036] Figure 6 is a flow chart of a physiological parameter detection method according to an exemplary embodiment.
[0037] Figure 7 The present invention is a flow chart of a method for detecting light intensity by a detection sensor according to an exemplary embodiment.
[0038] Figure 8 is a block diagram of a physiological parameter detection device according to an exemplary embodiment.
[0039] Fig. 9 is a block diagram of a device 200 for detecting physiological parameters according to an exemplary embodiment. DETAILED DESCRIPTION
[0040] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present disclosure.
[0041] The physiological parameter detection method provided in the embodiment of the present disclosure is applied to the physiological parameter detection scenario.
[0042] In the related technology, as the application of terminals such as smart phones in medical testing increases, terminals can be used to detect physiological parameters to avoid the use of dedicated physiological parameter detection instruments for detection, so as to provide convenient detection of physiological parameters. For example, terminals can be used to detect physiological parameters such as blood oxygen saturation and heart rate.
[0043] In the related art, the detection of physiological parameters such as blood oxygen saturation and heart rate based on the terminal mainly uses external blood oxygen saturation and heart rate detection sensors to perform reflective blood oxygen saturation and heart rate detection. For example, blood oxygen saturation and heart rate detection can be completed by detecting the wavelength red light and infrared absorbance change frequency reflected from the user's detection part (such as fingers) through an external sensor. However, the results of reflective blood oxygen saturation and heart rate detection are not as accurate as the results of transmissive blood oxygen saturation and heart rate detection, and are therefore not recognized by the medical field. Blood oxygen detection in medical fields all uses transmissive detection.
[0044] In view of this, an embodiment of the present disclosure provides a physiological parameter detection method, in which a terminal with a folding screen is used to perform transmissive detection of physiological parameters. For example, based on the existing structure of the terminal with a folding screen, transmissive blood oxygen saturation detection and / or heart rate detection is implemented, which can achieve more accurate detection than the reflective blood oxygen saturation detection and / or heart rate detection solution.
[0045] Figure 1A-Figure 1C FIG. 1 is a schematic diagram showing a terminal with a foldable screen according to an embodiment of the present disclosure. Figure 1A-Figure 1C As shown, the terminal involved in the embodiment of the present disclosure has a folding screen, and the folding screen includes a first screen 1 and a second screen 2. A detection sensor 11 is provided in the first screen, and the detection sensor 11 has a function of detecting the light intensity of the target light. The symmetrical position area corresponding to the detection sensor 11 in the second screen 2 has a light-emitting area 21 that emits light for physiological parameter detection. When the folding screen is in a folded state, the light-emitting area 21 emits the target light, and the light intensity of the target light after passing through the detection part is used to detect the physiological parameters. After the target light passes through the detection part, it is detected by the detection sensor 11. Based on the light intensity of the target light detected by the detection sensor 11, the physiological parameters can be detected.
[0046] The target light emitted by the light emitting area 21 has a pre-calibrated wavelength. For example, the pre-calibrated wavelength may be light in the visible light range. For another example, it may be light with a wavelength of 660 nm, i.e., red light. The pre-calibrated wavelength may be the wavelength of red light emitted by the screen when measuring, which is pre-calibrated by a measuring device before the terminal leaves the factory.
[0047] In one embodiment, the physiological parameter is blood oxygen saturation. Transmission-type blood oxygen saturation detection is mainly performed by measuring the wavelength of red light and the frequency of change of red light absorbance through the fingers and earlobes. The light-emitting area 21 emits red light. After the red light transmits through the detection parts such as fingers and earlobes, the blood oxygen protection degree can be detected based on the red light intensity detected by the detection sensor 11.
[0048] In one embodiment, the physiological parameter is heart rate. The light emitting area 21 emits red light. For example, light of a corresponding wavelength (660 nm) is emitted. In the disclosed embodiment, the intensity of the blocked red light can be determined based on the periodic change of the intensity of the red light detected by the detection sensor, and then the venous return condition can be determined, thereby determining the heart rate detection value.
[0049] The disclosed embodiment is based on a terminal with a foldable screen. The transmissive blood oxygen saturation detection is mainly performed by measuring the wavelength red light and the frequency of the change of the red appearance absorbance through the fingers and earlobes. After the measurement, the heart rate and other indicators can also be measured. Compared with the reflective detection, the transmissive detection has higher detection accuracy, and only the transmissive blood oxygen saturation detection can obtain medical certification.
[0050] The detection sensor 11 in the terminal provided in the embodiment of the present disclosure may be a sensor capable of detecting the light intensity of the target light, for example, a sensor capable of detecting red light, so as to detect blood oxygen saturation and heart rate.
[0051] In one implementation, the detection sensor 11 may be one or more of a brightness sensor, a camera, an under-screen optical fingerprint sensor, etc. When the detection sensor 11 is a plurality of detection sensors, the user may select one of them for detection through a prompt message.
[0052] In an exemplary embodiment of the present disclosure, the detection sensor 11 is an under-screen optical fingerprint sensor. The under-screen optical fingerprint sensor is realized by imaging the self-luminous screen reflected by the fingerprint. It has photosensitivity and screen transmittance. It only needs to ensure that the sensor has the function of red light intensity detection.
[0053] Figure 2 FIG. 1 is a schematic diagram of physiological parameter detection according to an exemplary embodiment of the present disclosure. Figure 2As shown, after the folding screen of the terminal is folded, the user's finger is placed above the optical fingerprint sensor under the screen, that is, the optical fingerprint sensor under the screen is covered by the user's detection part (finger). The screen light-emitting area 21 of the second screen emits target light. For example, light corresponding to a pre-calibrated wavelength is emitted. For example, red light of 660nm is emitted. After the target light passes through the detection part (finger), it is detected by the red light intensity detection channel of the optical fingerprint sensor under the screen to determine the physiological parameters. For example, by calculating the transmittance change, transmission-type blood oxygen saturation detection and heart rate detection are realized.
[0054] in, Figure 2 In the present invention, SoC can be understood as a processor, controller, etc. that performs physiological parameter detection and control.
[0055] Before the terminal leaves the factory, it is necessary to use measuring equipment to calibrate the screen to emit a predetermined wavelength during measurement, and use a standard model to calibrate the equipment's detection performance to improve detection accuracy.
[0056] In an exemplary embodiment of the present disclosure, the detection sensor 11 is a brightness sensor. Brightness sensors are basically standard equipment for foldable screen terminals, and most brightness sensors have independent red light detection channels that can cover a wavelength of 660nm, that is, they can detect physiological parameters such as blood oxygen saturation.
[0057] Figure 3 FIG. 1 is a schematic diagram of physiological parameter detection according to an exemplary embodiment of the present disclosure. Figure 3 As shown, after the folding screen of the terminal is folded, the user's finger is placed above the brightness sensor, that is, the brightness sensor is covered by the user's detection part (finger). The screen luminous area 21 of the second screen emits target light. For example, light corresponding to a pre-calibrated wavelength is emitted. For example, red light of 660nm is emitted. After the target light passes through the detection part (finger), it is detected by the red light intensity detection channel of the brightness sensor to determine the physiological parameters. For example, by calculating the transmittance change, transmission-type blood oxygen saturation detection and heart rate detection are realized.
[0058] Before the terminal leaves the factory, it is necessary to use measuring equipment to calibrate the screen to emit a predetermined wavelength during measurement, and use a standard model to calibrate the equipment's detection performance to improve detection accuracy.
[0059] In order to obtain light of a predetermined wavelength more specifically, the target light after passing through the detection part can be filtered to obtain the target light with the pre-calibrated wavelength. A filter can be provided in the embodiment of the present disclosure. For example, the filter is provided on the upper layer of the brightness sensor, or on the middle layer of the brightness sensor.
[0060] In one example, to capture red light with a wavelength of 660nm, the sensor itself can also independently add a set of channels with a 660nm narrow spectrum red light filter, for example, a narrow spectrum filter disposed on the upper layer of the brightness sensor, or disposed on the middle layer of the brightness sensor.
[0061] In an exemplary embodiment of the present disclosure, local light emission in the screen light emitting area 21 may be controlled to achieve lower power consumption and higher sampling rate.
[0062] in, Figure 3 In the present invention, SoC can be understood as a processor, controller, etc. that performs physiological parameter detection and control.
[0063] In an exemplary embodiment of the present disclosure, the detection sensor 11 is a camera. For example, the front camera of a folding screen terminal. The camera, as a photosensitive device, has an independent red light channel. At the same time, since the screen has a window at the camera position, the visible light transmittance at the camera can be better guaranteed. Therefore, physiological parameters such as blood oxygen saturation can be detected.
[0064] Figure 4 FIG. 1 is a schematic diagram of physiological parameter detection according to an exemplary embodiment of the present disclosure. Figure 4 As shown, after the folding screen of the terminal is folded, the user's finger is placed above the camera, that is, the camera is covered by the user's detection part (finger). The screen luminous area 21 of the second screen emits target light. For example, light corresponding to a pre-calibrated wavelength is emitted. For example, 660nm red light is emitted. After the target light passes through the detection part (finger), it is detected by the red light intensity detection channel of the camera to determine the physiological parameters. For example, by calculating the transmittance change, transmission-type blood oxygen saturation detection and heart rate detection are realized.
[0065] Before the terminal leaves the factory, it is necessary to use measuring equipment to calibrate the screen to emit a predetermined wavelength during measurement, and use a standard model to calibrate the equipment's detection performance to improve detection accuracy.
[0066] In order to obtain light of a predetermined wavelength more specifically, the target light after passing through the detection part can be filtered to obtain the target light with the pre-calibrated wavelength. A filter can be provided in the embodiment of the present disclosure. For example, the filter is provided on the upper layer of the camera, or on the middle layer of the camera.
[0067] In one example, in order to more accurately capture 660nm red light, a narrow spectrum filter can be added to some pixels of the camera, and the pixels with the filter can be used alone in the process of measuring blood oxygen saturation to obtain more accurate changes in 660nm wavelength red light. For example, a narrow spectrum filter is set on the upper layer of the camera, or on the middle layer of the camera.
[0068] In an exemplary embodiment of the present disclosure, the pixels corresponding to the emission of the target light may be controlled to emit light as part of all pixels in the camera that can detect the target light, so as to achieve lower power consumption and higher sampling rate.
[0069] In one example, in order to avoid excessive power consumption, the camera can adopt a partial pixel activation mode to achieve lower power consumption and higher sampling rate.
[0070] in, Figure 4 In the present invention, SoC can be understood as a processor, controller, etc. that performs physiological parameter detection and control.
[0071] The terminal with a foldable screen provided in the embodiment of the present disclosure can utilize its existing structure to realize physiological parameter detection, such as transmission-type blood oxygen saturation detection and heart rate detection, and can realize more accurate blood oxygen saturation detection than the reflective solution.
[0072] Based on the same concept, an embodiment of the present disclosure provides a method for detecting physiological parameters, which can be executed by the terminal involved in the above embodiments.
[0073] Figure 5A is a flow chart of a physiological parameter detection method according to an exemplary embodiment. Figure 5A As shown, the physiological parameter detection method includes the following steps.
[0074] In step S11, the terminal with a foldable screen detects an instruction to perform physiological parameter detection.
[0075] In the embodiments of the present disclosure, the user can trigger the detection of physiological parameters based on the application and / or function for performing physiological parameter detection installed in the terminal with a folding screen. For example, the menu bar may provide a physiological parameter detection function, and the user clicks on the function to issue an instruction for physiological parameter detection. The terminal with a folding screen detects the instruction for performing physiological parameter detection and determines to perform physiological parameter detection.
[0076] In step S12, the position area of the second screen corresponding to the first screen detection sensor is controlled to emit target light.
[0077] In the disclosed embodiment, the position area of the second screen corresponding to the first screen detection sensor can be understood as the light-emitting area that emits the target light.
[0078] The target light is the light for detecting physiological parameters. The light intensity of the target light after passing through the detection part is used to detect the physiological parameters.
[0079] The detection sensor has the function of detecting the light intensity of the target light. The detection sensor is arranged on the first screen.
[0080] In the present disclosure, the second screen generally refers to a screen used to emit target light when a user uses a terminal with a foldable screen to perform physiological parameter detection.
[0081] Among them, since the present disclosure adopts a light transmission-type physiological parameter detection method, the first screen and the second screen are not the same screen, and the two should satisfy that the detection sensor below the first screen can receive direct light emitted from the second screen.
[0082] In step S13, the light intensity detected by the detection sensor when the target light passes through the detection part is obtained.
[0083] In step S14, the physiological parameter is determined based on the intensity of the light reaching the forehead detected by the detection sensor.
[0084] The disclosed embodiment performs transmissive physiological parameter detection based on a terminal with a foldable screen, thereby realizing physiological parameter detection based on the original structure of the foldable screen terminal. Compared with reflective detection, transmissive detection has higher detection accuracy, and only transmissive blood oxygen saturation detection can obtain medical certification.
[0085] In the disclosed embodiment, when a user uses a terminal with a folding screen to detect his physiological parameters, the terminal with a folding screen needs to provide a condition in which the detection light can penetrate the user's detection part. Therefore, when a user uses a terminal with a folding screen to detect his physiological parameters, the terminal with a folding screen should be in a folded state. The user places the detection part between the two folding screens of the terminal with a folding screen, and the light transmission detection of his physiological parameters can be completed.
[0086] In the disclosed embodiment, the physiological parameters may include blood oxygen saturation, heart rate, etc. The target light may be red light, such as 660 nm red light.
[0087] Among them, light of different wavelengths corresponds to different molar absorption coefficients. Figure 5B A schematic diagram of the relationship between the wavelength of light and the molar absorption coefficient in an example embodiment is shown. Among them, based on the relationship between the wavelength of light and the molar absorption coefficient, physiological parameters such as blood oxygen saturation can be determined. For example, when using light irradiation to detect the blood oxygen saturation of a human body, it is necessary to determine the degree of light intensity attenuation of transmitted light of different wavelengths after passing through the detection part of the human body to determine the concentration relationship between oxygenated protein (HbO2) in human blood and the sum of hemoglobin (Hb) in human blood that can bind to oxygen. Based on the concentration relationship between the two, the blood oxygen saturation of the human body can be calculated.
[0088] Among them, blood oxygen saturation = HbO2 concentration in human blood / Hb concentration in human blood
[0089] Among them, the concentration relationship between oxygenated protein (HbO2) in human blood and the total amount of hemoglobin (Hb) in human blood that can bind to oxygen is determined by the different absorption of red light of a fixed wavelength by the two. When the wavelength of visible red light passing through the human body changes, the absorption rate of oxygenated protein and hemoglobin in the human body that can bind to oxygen but has not yet bound to oxygen for red light passing through the human body is different.
[0090] Therefore, when the concentration relationship between oxygenated protein in human blood and the total amount of hemoglobin in human blood that can bind to oxygen is measured based on light intensity, the total amount of protein and hemoglobin in human blood that can bind to oxygen can be calculated based on the properties of the substance absorbing light. For example, the basic law of light absorption (Beer-Lambert law).
[0091] A=lg(I / I')=Kbc(Beer-LambertLaw)
[0092] Where A is the absorbance, which refers to the absorbance of human blood at the detection site. I is the incident light intensity, and I' is the intensity of the light detected through the human body. K is the molar absorption coefficient, which is a constant when the substance and the wavelength of the light passing through it are fixed. b is the substance thickness, and c is the solution concentration.
[0093] In the disclosed embodiment, a transmission-type blood oxygen saturation detection is adopted. The target light emitted by the second screen for blood oxygen saturation detection is absorbed by the detection sensor of the first screen to obtain the target light intensity passing through the user's detection part. The user's blood oxygen saturation is calculated based on the target light intensity emitted by the second screen and the target light intensity of the user's detection part detected by the detection sensor of the first screen, and the detection of the user's blood oxygen saturation is completed.
[0094] In the disclosed embodiment, when the heart rate of a human body is detected by irradiating light, it is necessary to determine the change in the degree of light intensity attenuation of a given wavelength of transmitted light after passing through the human body. By periodically capturing the intensity of visible red light passing through the user's detection area, the change in the intensity of visible red light passing through the user's detection area is detected. Based on the change in the intensity of visible red light passing through the user's detection area, the user's pulse wave signal is obtained. The user's heart rate change can be calculated using the user's pulse wave signal.
[0095] In the disclosed embodiment, a transmission-type heart rate detection is adopted. The target light emitted by the second screen for detecting the heart rate is absorbed by the detection sensor of the first screen, and the intensity of the target light passing through the detection part of the user is obtained. After obtaining the periodic data of the intensity of the target light passing through the detection part of the user, the pulse wave signal of the user is obtained, and the heart rate of the user is calculated according to the pulse wave signal of the user, thereby completing the detection of the heart rate of the user.
[0096] In the disclosed embodiment, when the terminal with a foldable screen receives an instruction from a user to perform physiological parameter detection on it, the second screen used to provide target light for transmissive physiological parameter detection will first start to send target light. The terminal with a foldable screen will prompt the user to place the detection part in the test area used to detect the physiological parameters. After the sensor of the terminal with a foldable screen senses that the user has placed the test part in the test area used to detect the physiological parameters, the detection sensor of the first screen will start to receive the target light emitted by the second screen for detecting the corresponding physiological parameters.
[0097] In the embodiment of the present disclosure, when detecting the physiological parameters of the user, the detection sensor of the first screen absorbs the target light that passes through the user detection area. Since the detection of physiological parameters requires accurate results, the detection sensor of the first screen has the ability to detect the intensity of the incident light. Therefore, in the present disclosure, the detection sensor of the first screen has the ability to detect the intensity of the target light emitted by the second screen for the corresponding physiological parameter detection after passing through the user detection area.
[0098] In an exemplary embodiment of the present disclosure, when a terminal with a foldable screen receives an instruction from a user to perform physiological parameter detection on it, the second screen used to provide target light for transmissive physiological parameter detection starts to emit target light. The terminal with a foldable screen will prompt the user to place the detection part in the test area used to detect the physiological parameter. After the sensor of the terminal with a foldable screen senses that the user has placed the test part in the test area used to detect the physiological parameter, the detection sensor of the first screen will start to receive the target light emitted by the second screen for detecting the corresponding physiological parameter.
[0099] In an exemplary embodiment of the present disclosure, when it is determined that a detection sensor disposed on the first screen of the folding screen is covered by a user detection portion, the position area corresponding to the detection sensor in the second screen may be controlled to emit target light.
[0100] Figure 6 is a flow chart of a physiological parameter detection method according to an exemplary embodiment. Figure 6 As shown, the physiological parameter detection method includes steps S21 to S25. Among them, steps S21, S23, S24, and S25 are the same as steps S11, S12, S13, and S14, and are not described here. Only the differences are described below.
[0101] In step S22, it is determined that the detection sensor disposed on the first screen of the folding screen is detected to be covered by the user detection part.
[0102] In the embodiment of the present disclosure, when it is detected that the upper part of the sensor is covered by the user detection part, target light emission and light intensity detection are performed, which can save power consumption.
[0103] Furthermore, in the disclosed embodiment, the target light has a pre-calibrated wavelength.
[0104] In one implementation, in order to improve the detection accuracy of the target light, the embodiment of the present disclosure may filter the target light transmitted through the detection portion so as to accurately obtain the target light having a preset expression wavelength.
[0105] Figure 7 is a flow chart of a method for detecting light intensity by a detection sensor according to an exemplary embodiment. Figure 7 As shown, the method for detecting light intensity by a detection sensor comprises the following steps:
[0106] In step S31, the target light after passing through the detection part is filtered to obtain the target light with a pre-calibrated wavelength.
[0107] When detecting the target light emitted by the second screen and passing through the user detection part, the light detected by the detection sensor is not only the light required for detection, but also mixed with other color lights of the outside world and visible red light of different wavelengths. Therefore, the light detected by the detection sensor cannot well reflect the light intensity of the target light emitted by the second screen and passing through the user detection part in the present disclosure.
[0108] In step S32, the intensity of light of a preset wavelength is detected by a detection sensor.
[0109] In the disclosed embodiment, the target light transmitted through the detection part is filtered, that is, the light with a color different from the target light and the red light with a wavelength different from the target light in all the light absorbed by the detection sensor are filtered out, so that the intensity of the target light emitted by the second screen and passing through the user detection part can be detected more accurately, thereby achieving accurate acquisition of the target light with a preset expression wavelength.
[0110] In one implementation of the disclosed embodiment, a filter is used to filter the target light that passes through the detection portion.
[0111] In one implementation of the disclosed embodiment, the detection sensor is at least one of the following: a brightness sensor; a camera; an under-screen optical fingerprint sensor.
[0112] In one implementation of the disclosed embodiment, the detection sensor is a brightness sensor in the terminal, and the filter is disposed on an upper layer of the brightness sensor, or on a middle layer of the brightness sensor.
[0113] The target light after passing through the detection part is filtered, and the target light after passing through the detection part can be filtered by a filter arranged on the upper layer of the brightness sensor or the middle layer of the brightness sensor.
[0114] In one implementation of the disclosed embodiment, the detection sensor is a camera in the terminal, and the filter is disposed in the pixel corresponding to the target light emission in the camera.
[0115] The filtering process is performed on the target light after passing through the detection part, including: filtering the target light after passing through the detection part through a filter in a pixel in the camera corresponding to the pixel emitting the target light.
[0116] In one implementation of the disclosed embodiment, the pixels corresponding to the emission of the target light are controlled to emit light for some pixels among all pixels in the camera that can detect the target light, so as to achieve lower power consumption and higher sampling rate. In other words, in the disclosed embodiment, the pixels corresponding to the emission of the target light are some pixels among all pixels in the camera that can detect the target light.
[0117] The physiological parameter detection method provided by the embodiment of the present disclosure is applicable to the detection of physiological parameters such as blood oxygen saturation, heart rate, etc. In this case, the target light is red light.
[0118] The disclosed embodiment is based on a terminal with a foldable screen. Based on the original structure of the foldable screen terminal, the transmissive blood oxygen saturation detection is mainly performed by measuring the wavelength red light and the frequency of the change of the red appearance absorbance through the fingers and earlobes. After the measurement, the heart rate and other indicators can also be additionally measured. Compared with the reflective detection, the transmissive detection has higher detection accuracy, and only the transmissive blood oxygen saturation detection can obtain medical certification.
[0119] Based on the same concept, the embodiment of the present disclosure also provides a physiological parameter detection device.
[0120] It is understandable that the physiological parameter detection device provided in the embodiment of the present disclosure includes hardware structures and / or software modules corresponding to the execution of each function in order to realize the above functions. In combination with the units and algorithm steps of each example disclosed in the embodiment of the present disclosure, the embodiment of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the technical solution of the embodiment of the present disclosure.
[0121] Figure 8is a block diagram of a physiological parameter detection device according to an exemplary embodiment. Figure 8 The device 100 includes a detection processing unit 101, an acquisition unit 102 and a determination unit 103.
[0122] The processing unit 101 is used to respond to the terminal with a folding screen detecting an instruction to perform physiological parameter detection, control the position area corresponding to the detection sensor in the second screen to emit target light, the light intensity after the target light passes through the detection part is used to detect the physiological parameter, the detection sensor has the function of detecting the light intensity of the target light, and the folding screen is in a folded state. The acquisition unit 102 is used to obtain the light intensity detected by the detection sensor after the target light passes through the detection part. The determination unit 103 is used to determine the physiological parameter based on the light intensity.
[0123] In one embodiment, the processing unit 101 is further used to: before controlling the position area corresponding to the detection sensor in the second screen to emit the target light, determine that the detection sensor arranged on the first screen of the folding screen is covered by the user's detection part.
[0124] In one embodiment, the target light has a pre-calibrated wavelength. The acquisition unit 102 acquires the intensity of the light that passes through the detection part and is detected by the detection sensor in the following manner: filtering the target light after passing through the detection part to acquire the target light with the pre-calibrated wavelength. The intensity of the light with the pre-set wavelength is detected by the detection sensor.
[0125] In one embodiment, the detection sensor is a brightness sensor in the terminal. The acquisition unit 102 performs filtering processing on the target light after passing through the detection part in the following manner: filtering processing on the target light after passing through the detection part through a filter. The filter is arranged on the upper layer of the brightness sensor, or arranged on the middle layer of the brightness sensor.
[0126] In one embodiment, the detection sensor is a camera in the terminal. The acquisition unit 102 performs filtering processing on the target light after passing through the detection part in the following manner: filtering the target light after passing through the detection part through a filter in a pixel in the camera corresponding to the target light emission.
[0127] In one implementation, the pixels corresponding to the emitted target light are part of all pixels in the camera that can detect the target light.
[0128] In one implementation, the detection sensor is an under-screen optical fingerprint sensor.
[0129] In one embodiment, the physiological parameter includes at least one of the following: blood oxygen saturation and heart rate. The target light is red light.
[0130] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.
[0131] Fig. 9 1 is a block diagram of a device 200 for physiological parameter detection according to an exemplary embodiment. For example, the device 200 may be a terminal having a folding screen. The terminal may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.
[0132] Reference Fig. 9 , the device 200 may include one or more of the following components: a processing component 202 , a memory 204 , a power component 206 , a multimedia component 208 , an audio component 210 , an input / output (I / O) interface 212 , a sensor component 214 , and a communication component 216 .
[0133] The processing component 202 generally controls the overall operation of the device 200, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 202 may include one or more processors 220 to execute instructions to perform all or part of the steps of the above-described method. In addition, the processing component 202 may include one or more modules to facilitate interaction between the processing component 202 and other components. For example, the processing component 202 may include a multimedia module to facilitate interaction between the multimedia component 208 and the processing component 202.
[0134] The memory 204 is configured to store various types of data to support operations on the device 200. Examples of such data include instructions for any application or method operating on the device 200, contact data, phone book data, messages, pictures, videos, etc. The memory 204 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.
[0135] The power component 206 provides power to the various components of the device 200. The power component 206 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 200.
[0136] The multimedia component 208 includes a screen that provides an output interface between the device 200 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 208 includes a front camera and / or a rear camera. When the device 200 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
[0137] The audio component 210 is configured to output and / or input audio signals. For example, the audio component 210 includes a microphone (MIC), and when the device 200 is in an operation mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 204 or sent via the communication component 216. In some embodiments, the audio component 210 also includes a speaker for outputting audio signals.
[0138] I / O interface 212 provides an interface between processing component 202 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.
[0139] The sensor assembly 214 includes one or more sensors for providing various aspects of the status assessment of the device 200. For example, the sensor assembly 214 can detect the open / closed state of the device 200, the relative positioning of components, such as the display and keypad of the device 200, the sensor assembly 214 can also detect the position change of the device 200 or a component of the device 200, the presence or absence of user contact with the device 200, the orientation or acceleration / deceleration of the device 200 and the temperature change of the device 200. The sensor assembly 214 can include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 214 can also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 214 can also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.
[0140] The communication component 216 is configured to facilitate wired or wireless communication between the device 200 and other devices. The device 200 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 216 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 216 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC 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.
[0141] In an exemplary embodiment, the apparatus 200 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 gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to perform the above method.
[0142] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 204 including instructions, and the instructions can be executed by the processor 220 of the device 200 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.
[0143] It is to be understood that in the present disclosure, "plurality" refers to two or more than two, and other quantifiers are similar. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include plural forms, unless the context clearly indicates other meanings.
[0144] It is further understood that the terms "first", "second", etc. are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not indicate a specific order or degree of importance. In fact, the expressions "first", "second", etc. can be used interchangeably. For example, without departing from the scope of the present disclosure, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information.
[0145] It will be further understood that the terms “center”, “longitudinal”, “lateral”, “front”, “back”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation.
[0146] It can be further understood that, unless otherwise specified, “connection” includes a direct connection without other components between the two, and also includes an indirect connection with other components between the two.
[0147] It is further understood that, although the operations are described in a specific order in the drawings in the embodiments of the present disclosure, it should not be understood as requiring the operations to be performed in the specific order shown or in a serial order, or requiring the execution of all the operations shown to obtain the desired results. In certain environments, multitasking and parallel processing may be advantageous.
[0148] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modifications, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure.
[0149] It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the scope of the appended claims.
Claims
1. A physiological parameter detection method, characterized in that: The method comprises: In response to the terminal with a folding screen detecting an instruction to perform physiological parameter detection, the position area of the second screen corresponding to the detection sensor of the first screen is controlled to emit a target light, the light intensity of the target light after passing through the detection part is used to detect the physiological parameter, the detection sensor has the function of detecting the light intensity of the target light, and the folding screen is in a folded state; Acquire the target light penetrating the detection position and the light intensity detected by the detection sensor; Based on the light intensity, the physiological parameter is determined.
2. The method according to claim 1, characterized in that Before controlling the position area corresponding to the detection sensor in the second screen to emit the target light, the method further includes: It is determined that the detection sensor disposed on the first screen of the folding screen is detected to be covered by the user detection part.
3. The method according to claim 1 or 2, characterized in that: The target light has a pre-calibrated wavelength; The step of obtaining the light intensity of the target light passing through the detection part and detected by the detection sensor comprises: Filtering the target light after passing through the detection part to obtain the target light with the pre-calibrated wavelength; The intensity of the light with the preset wavelength is detected by the detection sensor.
4. The method according to claim 3, characterized in that: The detection sensor is a brightness sensor in the terminal; The filtering process of the target light after passing through the detection part includes: Performing filtering processing on the target light after passing through the detection part by means of a filter; The filter is arranged on the upper layer of the brightness sensor, or on the middle layer of the brightness sensor.
5. The method according to claim 3, characterized in that: The detection sensor is a camera in the terminal; The filtering process of the target light after passing through the detection part includes: The target light after passing through the detection part is filtered by the filter in the pixel of the camera corresponding to the emission of the target light.
6. The method according to claim 5, characterized in that The pixels corresponding to the emission of the target light are part of all pixels in the camera that can detect the target light.
7. The method according to claim 1 or 2, characterized in that: The detection sensor is an under-screen optical fingerprint sensor.
8. The method according to claim 1, characterized in that The physiological parameters include at least one of the following: blood oxygen saturation and heart rate; The target light is red light.
9. A physiological parameter detection device, characterized in that: The device comprises: a processing unit, configured to, in response to the terminal with a folding screen detecting an instruction to perform physiological parameter detection, control the position area of the second screen corresponding to the detection sensor to emit a target light, wherein the light intensity of the target light after passing through the detection part is used to detect the physiological parameter, the detection sensor has a function of detecting the light intensity of the target light, and the folding screen is in a folded state; An acquisition unit, used for acquiring the light intensity detected by the detection sensor after the target light passes through the detection position; A determination unit is used to determine the physiological parameter based on the light intensity.
10. A terminal, characterized in that: The terminal has a foldable screen, and includes: processor; a memory for storing processor-executable instructions; Wherein, the processor is configured to: detect an instruction to perform physiological parameter detection, control the position area corresponding to the detection sensor in the second screen to emit target light, obtain the target light passing through the detection site and the light intensity detected by the detection sensor, and determine the physiological parameter based on the light intensity, the light intensity after the target light passes through the detection site is used to detect the physiological parameter, the detection sensor has the function of detecting the light intensity of the target light, and the folding screen is in a folded state.
11. The terminal according to claim 10, characterized in that: The detection sensor is at least one of the following: Brightness sensor; Camera; Under-screen optical fingerprint sensor.
12. The terminal according to claim 11, characterized in that: The detection sensor is a brightness sensor, and the terminal further includes: A narrow spectrum filter is arranged on the upper layer of the brightness sensor, or arranged on the middle layer of the brightness sensor.
13. The terminal according to claim 11, characterized in that: The detection sensor is a camera, and the terminal further includes: A narrow spectrum filter is disposed in the pixel corresponding to the pixel emitting the target light.
14. A storage medium, characterized in that: The storage medium stores instructions, and when the instructions in the storage medium are executed by a processor of the terminal, the terminal is enabled to execute the method described in any one of claims 1 to 8.